From 969b1af5831a08652aaa9ba88a00c826e872e81d Mon Sep 17 00:00:00 2001 From: emilia Date: Sat, 21 Mar 2026 19:41:43 +0100 Subject: [PATCH] Global Repo of SterlingOs --- README.md | 4 + SlEd | 1 + SlLinux/.gitignore | 11 + SlLinux/Makefile | 53 + SlLinux/README.md | 23 + SlLinux/include/raylib.h | 1742 +++++++++++ SlLinux/include/raymath.h | 3134 ++++++++++++++++++++ SlLinux/include/rcamera.h | 562 ++++ SlLinux/include/rgestures.h | 555 ++++ SlLinux/include/rlgl.h | 5405 +++++++++++++++++++++++++++++++++++ SlLinux/include/stb_ds.h | 1895 ++++++++++++ SlLinux/lib/README.md | 10 + SlLinux/source/auth.c | 4 + SlLinux/source/main.c | 19 + SlLinux/source/shell.c | 37 + SlLinux/source/slcore.h | 107 + SlLinux/source/slmath.h | 8 + SlLinux/source/slwdm.c | 53 + Sterling | 1 + 19 files changed, 13624 insertions(+) create mode 100644 README.md create mode 160000 SlEd create mode 100755 SlLinux/.gitignore create mode 100755 SlLinux/Makefile create mode 100755 SlLinux/README.md create mode 100644 SlLinux/include/raylib.h create mode 100644 SlLinux/include/raymath.h create mode 100644 SlLinux/include/rcamera.h create mode 100644 SlLinux/include/rgestures.h create mode 100644 SlLinux/include/rlgl.h create mode 100644 SlLinux/include/stb_ds.h create mode 100644 SlLinux/lib/README.md create mode 100644 SlLinux/source/auth.c create mode 100755 SlLinux/source/main.c create mode 100755 SlLinux/source/shell.c create mode 100644 SlLinux/source/slcore.h create mode 100644 SlLinux/source/slmath.h create mode 100644 SlLinux/source/slwdm.c create mode 160000 Sterling diff --git a/README.md b/README.md new file mode 100644 index 0000000..99d8c80 --- /dev/null +++ b/README.md @@ -0,0 +1,4 @@ +for long string (more than 255 char):https://en.wikipedia.org/wiki/Piece_table +else use first byte is size then come the data (so at most we have 256 byte) for a string + +otherDataStruct : https://en.wikipedia.org/wiki/Zipper_(data_structure) diff --git a/SlEd b/SlEd new file mode 160000 index 0000000..f414c55 --- /dev/null +++ b/SlEd @@ -0,0 +1 @@ +Subproject commit f414c556085bad4821dcd8daf790dd7222f1e19f diff --git a/SlLinux/.gitignore b/SlLinux/.gitignore new file mode 100755 index 0000000..ae0190c --- /dev/null +++ b/SlLinux/.gitignore @@ -0,0 +1,11 @@ +build +obj +deps +bin +*.a +*.out +*.dll +*.so +*.lib +*.exe +*.ignore diff --git a/SlLinux/Makefile b/SlLinux/Makefile new file mode 100755 index 0000000..33ea823 --- /dev/null +++ b/SlLinux/Makefile @@ -0,0 +1,53 @@ + +# --- Sterling OS Build System --- +#TARGET := x86_64-linux-gnu +#PREFIX := $(HOME)/gnulinux_sterling +#CC := $(PREFIX)/bin/$(TARGET)-gcc + +NAME := sl_linux + +CC := gcc + +#-static -fsanitize=thread +CFLAGS := -g -ggdb -fsanitize=address -fsanitize=undefined -Og -Wall -Wextra -Werror -std=c99 -pedantic -I/usr/include/drm + +LDFLAGS := -Llib + +LDLIBS := -lasan -lubsan -lGL -lm -lpthread -ldl -lrt -ldrm -lreadline -lraylib + +SRC_DIR := source + +OBJ_DIR := obj + +BUILD_DIR := build + +SRC := $(wildcard $(SRC_DIR)/*.c) + +OBJ := $(SRC:$(SRC_DIR)/%.c=$(OBJ_DIR)/%.o) + +all: $(NAME) + +$(NAME): $(OBJ) | $(BUILD_DIR) + $(CC) $(OBJ) $(LDFLAGS) $(LDLIBS) -o $(BUILD_DIR)/$(NAME) + +$(OBJ_DIR)/%.o : $(SRC_DIR)/%.c $(wildcard $(SRC_DIR)/*.h) + $(CC) $(CFLAGS) -c $< -o $@ + +$(OBJ_DIR): + mkdir $(OBJ_DIR) + +$(BUILD_DIR): + mkdir $(BUILD_DIR) + +$(OBJ): | $(OBJ_DIR) + +clean: + rm -f myshell + +fclean: clean + rm -rf $(OBJ_DIR) + +re: fclean all + +.PHONY: all clean fclean re $(NAME) + diff --git a/SlLinux/README.md b/SlLinux/README.md new file mode 100755 index 0000000..b7737e2 --- /dev/null +++ b/SlLinux/README.md @@ -0,0 +1,23 @@ +## Dependenies: + +### Core: + +- Linux Kernel +- glibc +- GNU Coreutils +- GNU Binutils + +### Graphic: + +- Mesa +- Libdrm +- wlroots +- libinput + +### Custom + +- Init +- Shell +- Compositor / WindowManager / Surface Manager +- + diff --git a/SlLinux/include/raylib.h b/SlLinux/include/raylib.h new file mode 100644 index 0000000..951f1ff --- /dev/null +++ b/SlLinux/include/raylib.h @@ -0,0 +1,1742 @@ +/********************************************************************************************** +* +* raylib v6.0 - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com) +* +* FEATURES: +* - NO external dependencies, all required libraries included with raylib +* - Multiplatform: Windows, Linux, macOS, FreeBSD, Web, Android, Raspberry Pi, DRM native... +* - Written in plain C code (C99) in PascalCase/camelCase notation +* - Hardware accelerated with OpenGL (1.1, 2.1, 3.3, 4.3, ES2, ES3 - choose at compile) +* - Software renderer optional, for systems with no GPU: [rlsw] +* - Custom OpenGL abstraction layer (usable as standalone module): [rlgl] +* - Multiple Fonts formats supported (TTF, OTF, FNT, BDF, Sprite fonts) +* - Many texture formats supportted, including compressed formats (DXT, ETC, ASTC) +* - Full 3d support for 3d Shapes, Models, Billboards, Heightmaps and more! +* - Flexible Materials system, supporting classic maps and PBR maps +* - Animated 3D models supported (skeletal bones animation) (IQM, M3D, GLTF) +* - Shaders support, including Model shaders and Postprocessing shaders +* - Powerful math module for Vector, Matrix and Quaternion operations: [raymath] +* - Audio loading and playing with streaming support (WAV, OGG, MP3, FLAC, QOA, XM, MOD) +* - VR stereo rendering with configurable HMD device parameters +* - Bindings to multiple programming languages available! +* +* NOTES: +* - One default Font is loaded on InitWindow()->LoadFontDefault() [core, text] +* - One default Texture2D is loaded on rlglInit(), 1x1 white pixel R8G8B8A8 [rlgl] (OpenGL 3.3 or ES2) +* - One default Shader is loaded on rlglInit()->rlLoadShaderDefault() [rlgl] (OpenGL 3.3 or ES2) +* - One default RenderBatch is loaded on rlglInit()->rlLoadRenderBatch() [rlgl] (OpenGL 3.3 or ES2) +* +* DEPENDENCIES: +* [rcore] Depends on the selected platform backend, check rcore.c header for details +* [rlgl] glad/glad_gles2 (David Herberth - github.com/Dav1dde/glad) for OpenGL extensions loading +* [raudio] miniaudio (David Reid - github.com/mackron/miniaudio) for audio device/context management +* +* OPTIONAL DEPENDENCIES (included): +* [rcore] sinfl (Micha Mettke) for DEFLATE decompression algorithm +* [rcore] sdefl (Micha Mettke) for DEFLATE compression algorithm +* [rcore] rprand (Ramon Santamaria) for pseudo-random numbers generation +* [rtextures] qoi (Dominic Szablewski - https://phoboslab.org) for QOI image manage +* [rtextures] stb_image (Sean Barret) for images loading (BMP, TGA, PNG, JPEG, HDR...) +* [rtextures] stb_image_write (Sean Barret) for image writing (BMP, TGA, PNG, JPG) +* [rtextures] stb_image_resize2 (Sean Barret) for image resizing algorithms +* [rtextures] stb_perlin (Sean Barret) for Perlin Noise image generation +* [rtextures] rl_gputex (Ramon Santamaria) for GPU-compressed texture formats +* [rtext] stb_truetype (Sean Barret) for ttf fonts loading +* [rtext] stb_rect_pack (Sean Barret) for rectangles packing +* [rmodels] par_shapes (Philip Rideout) for parametric 3d shapes generation +* [rmodels] tinyobj_loader_c (Syoyo Fujita) for models loading (OBJ, MTL) +* [rmodels] cgltf (Johannes Kuhlmann) for models loading (glTF) +* [rmodels] m3d (bzt) for models loading (M3D, https://bztsrc.gitlab.io/model3d) +* [rmodels] vox_loader (Johann Nadalutti) for models loading (VOX) +* [raudio] dr_wav (David Reid) for WAV audio file loading +* [raudio] dr_flac (David Reid) for FLAC audio file loading +* [raudio] dr_mp3 (David Reid) for MP3 audio file loading +* [raudio] stb_vorbis (Sean Barret) for OGG audio loading +* [raudio] jar_xm (Joshua Reisenauer) for XM audio module loading +* [raudio] jar_mod (Joshua Reisenauer) for MOD audio module loading +* [raudio] qoa (Dominic Szablewski - https://phoboslab.org) for QOA audio manage +* +* +* LICENSE: zlib/libpng +* +* raylib is licensed under an unmodified zlib/libpng license, which is an OSI-certified, +* BSD-like license that allows static linking with closed source software: +* +* Copyright (c) 2013-2026 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RAYLIB_H +#define RAYLIB_H + +#include // Required for: va_list - Only used by TraceLogCallback + +#define RAYLIB_VERSION_MAJOR 6 +#define RAYLIB_VERSION_MINOR 0 +#define RAYLIB_VERSION_PATCH 0 +#define RAYLIB_VERSION "6.0" + +// Function specifiers in case library is build/used as a shared library +// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll +// NOTE: visibility("default") attribute makes symbols "visible" when compiled with -fvisibility=hidden +#if defined(_WIN32) + #if defined(__TINYC__) + #define __declspec(x) __attribute__((x)) + #endif + #if defined(BUILD_LIBTYPE_SHARED) + #define RLAPI __declspec(dllexport) // Building the library as a Win32 shared library (.dll) + #elif defined(USE_LIBTYPE_SHARED) + #define RLAPI __declspec(dllimport) // Using the library as a Win32 shared library (.dll) + #endif +#else + #if defined(BUILD_LIBTYPE_SHARED) + #define RLAPI __attribute__((visibility("default"))) // Building as a Unix shared library (.so/.dylib) + #endif +#endif + +#ifndef RLAPI + #define RLAPI // Functions defined as 'extern' by default (implicit specifiers) +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef PI + #define PI 3.14159265358979323846f +#endif +#ifndef DEG2RAD + #define DEG2RAD (PI/180.0f) +#endif +#ifndef RAD2DEG + #define RAD2DEG (180.0f/PI) +#endif + +// Allow custom memory allocators +// NOTE: Require recompiling raylib sources +#ifndef RL_MALLOC + #define RL_MALLOC(sz) malloc(sz) +#endif +#ifndef RL_CALLOC + #define RL_CALLOC(n,sz) calloc(n,sz) +#endif +#ifndef RL_REALLOC + #define RL_REALLOC(ptr,sz) realloc(ptr,sz) +#endif +#ifndef RL_FREE + #define RL_FREE(ptr) free(ptr) +#endif + +// NOTE: MSVC C++ compiler does not support compound literals (C99 feature) +// Plain structures in C++ (without constructors) can be initialized with { } +// This is called aggregate initialization (C++11 feature) +#if defined(__cplusplus) + #define CLITERAL(type) type +#else + #define CLITERAL(type) (type) +#endif + +// Some compilers (mostly macos clang) default to C++98, +// where aggregate initialization can't be used +// So, give a more clear error stating how to fix this +#if !defined(_MSC_VER) && (defined(__cplusplus) && __cplusplus < 201103L) + #error "C++11 or later is required. Add -std=c++11" +#endif + +// NOTE: Set some defines with some data types declared by raylib +// Other modules (raymath, rlgl) also require some of those types, so, +// to be able to use those other modules as standalone (not depending on raylib) +// this defines are useful for internal check and avoid type (re)definitions +#define RL_COLOR_TYPE +#define RL_RECTANGLE_TYPE +#define RL_VECTOR2_TYPE +#define RL_VECTOR3_TYPE +#define RL_VECTOR4_TYPE +#define RL_QUATERNION_TYPE +#define RL_MATRIX_TYPE + +// Some Basic Colors +// NOTE: Custom raylib color palette for amazing visuals on WHITE background +#define LIGHTGRAY CLITERAL(Color){ 200, 200, 200, 255 } // Light Gray +#define GRAY CLITERAL(Color){ 130, 130, 130, 255 } // Gray +#define DARKGRAY CLITERAL(Color){ 80, 80, 80, 255 } // Dark Gray +#define YELLOW CLITERAL(Color){ 253, 249, 0, 255 } // Yellow +#define GOLD CLITERAL(Color){ 255, 203, 0, 255 } // Gold +#define ORANGE CLITERAL(Color){ 255, 161, 0, 255 } // Orange +#define PINK CLITERAL(Color){ 255, 109, 194, 255 } // Pink +#define RED CLITERAL(Color){ 230, 41, 55, 255 } // Red +#define MAROON CLITERAL(Color){ 190, 33, 55, 255 } // Maroon +#define GREEN CLITERAL(Color){ 0, 228, 48, 255 } // Green +#define LIME CLITERAL(Color){ 0, 158, 47, 255 } // Lime +#define DARKGREEN CLITERAL(Color){ 0, 117, 44, 255 } // Dark Green +#define SKYBLUE CLITERAL(Color){ 102, 191, 255, 255 } // Sky Blue +#define BLUE CLITERAL(Color){ 0, 121, 241, 255 } // Blue +#define DARKBLUE CLITERAL(Color){ 0, 82, 172, 255 } // Dark Blue +#define PURPLE CLITERAL(Color){ 200, 122, 255, 255 } // Purple +#define VIOLET CLITERAL(Color){ 135, 60, 190, 255 } // Violet +#define DARKPURPLE CLITERAL(Color){ 112, 31, 126, 255 } // Dark Purple +#define BEIGE CLITERAL(Color){ 211, 176, 131, 255 } // Beige +#define BROWN CLITERAL(Color){ 127, 106, 79, 255 } // Brown +#define DARKBROWN CLITERAL(Color){ 76, 63, 47, 255 } // Dark Brown + +#define WHITE CLITERAL(Color){ 255, 255, 255, 255 } // White +#define BLACK CLITERAL(Color){ 0, 0, 0, 255 } // Black +#define BLANK CLITERAL(Color){ 0, 0, 0, 0 } // Blank (Transparent) +#define MAGENTA CLITERAL(Color){ 255, 0, 255, 255 } // Magenta +#define RAYWHITE CLITERAL(Color){ 245, 245, 245, 255 } // My own White (raylib logo) + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +// Boolean type +#if (defined(__STDC__) && __STDC_VERSION__ >= 199901L) || (defined(_MSC_VER) && _MSC_VER >= 1800) + #include +#elif !defined(__cplusplus) && !defined(bool) + typedef enum bool { false = 0, true = !false } bool; + #define RL_BOOL_TYPE +#endif + +// Vector2, 2 components +typedef struct Vector2 { + float x; // Vector x component + float y; // Vector y component +} Vector2; + +// Vector3, 3 components +typedef struct Vector3 { + float x; // Vector x component + float y; // Vector y component + float z; // Vector z component +} Vector3; + +// Vector4, 4 components +typedef struct Vector4 { + float x; // Vector x component + float y; // Vector y component + float z; // Vector z component + float w; // Vector w component +} Vector4; + +// Quaternion, 4 components (Vector4 alias) +typedef Vector4 Quaternion; + +// Matrix, 4x4 components, column major, OpenGL style, right-handed +typedef struct Matrix { + float m0, m4, m8, m12; // Matrix first row (4 components) + float m1, m5, m9, m13; // Matrix second row (4 components) + float m2, m6, m10, m14; // Matrix third row (4 components) + float m3, m7, m11, m15; // Matrix fourth row (4 components) +} Matrix; + +// Color, 4 components, R8G8B8A8 (32bit) +typedef struct Color { + unsigned char r; // Color red value + unsigned char g; // Color green value + unsigned char b; // Color blue value + unsigned char a; // Color alpha value +} Color; + +// Rectangle, 4 components +typedef struct Rectangle { + float x; // Rectangle top-left corner position x + float y; // Rectangle top-left corner position y + float width; // Rectangle width + float height; // Rectangle height +} Rectangle; + +// Image, pixel data stored in CPU memory (RAM) +typedef struct Image { + void *data; // Image raw data + int width; // Image base width + int height; // Image base height + int mipmaps; // Mipmap levels, 1 by default + int format; // Data format (PixelFormat type) +} Image; + +// Texture, tex data stored in GPU memory (VRAM) +typedef struct Texture { + unsigned int id; // OpenGL texture id + int width; // Texture base width + int height; // Texture base height + int mipmaps; // Mipmap levels, 1 by default + int format; // Data format (PixelFormat type) +} Texture; + +// Texture2D, same as Texture +typedef Texture Texture2D; + +// TextureCubemap, same as Texture +typedef Texture TextureCubemap; + +// RenderTexture, fbo for texture rendering +typedef struct RenderTexture { + unsigned int id; // OpenGL framebuffer object id + Texture texture; // Color buffer attachment texture + Texture depth; // Depth buffer attachment texture +} RenderTexture; + +// RenderTexture2D, same as RenderTexture +typedef RenderTexture RenderTexture2D; + +// NPatchInfo, n-patch layout info +typedef struct NPatchInfo { + Rectangle source; // Texture source rectangle + int left; // Left border offset + int top; // Top border offset + int right; // Right border offset + int bottom; // Bottom border offset + int layout; // Layout of the n-patch: 3x3, 1x3 or 3x1 +} NPatchInfo; + +// GlyphInfo, font characters glyphs info +typedef struct GlyphInfo { + int value; // Character value (Unicode) + int offsetX; // Character offset X when drawing + int offsetY; // Character offset Y when drawing + int advanceX; // Character advance position X + Image image; // Character image data +} GlyphInfo; + +// Font, font texture and GlyphInfo array data +typedef struct Font { + int baseSize; // Base size (default chars height) + int glyphCount; // Number of glyph characters + int glyphPadding; // Padding around the glyph characters + Texture2D texture; // Texture atlas containing the glyphs + Rectangle *recs; // Rectangles in texture for the glyphs + GlyphInfo *glyphs; // Glyphs info data +} Font; + +// Camera, defines position/orientation in 3d space +typedef struct Camera3D { + Vector3 position; // Camera position + Vector3 target; // Camera target it looks-at + Vector3 up; // Camera up vector (rotation over its axis) + float fovy; // Camera field-of-view aperture in Y (degrees) in perspective, used as near plane height in world units in orthographic + int projection; // Camera projection: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC +} Camera3D; + +typedef Camera3D Camera; // Camera type fallback, defaults to Camera3D + +// Camera2D, defines position/orientation in 2d space +typedef struct Camera2D { + Vector2 offset; // Camera offset (screen space offset from window origin) + Vector2 target; // Camera target (world space target point that is mapped to screen space offset) + float rotation; // Camera rotation in degrees (pivots around target) + float zoom; // Camera zoom (scaling around target), must not be set to 0, set to 1.0f for no scale +} Camera2D; + +// Mesh, vertex data and vao/vbo +typedef struct Mesh { + int vertexCount; // Number of vertices stored in arrays + int triangleCount; // Number of triangles stored (indexed or not) + + // Vertex attributes data + float *vertices; // Vertex position (XYZ - 3 components per vertex) (shader-location = 0) + float *texcoords; // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1) + float *texcoords2; // Vertex texture second coordinates (UV - 2 components per vertex) (shader-location = 5) + float *normals; // Vertex normals (XYZ - 3 components per vertex) (shader-location = 2) + float *tangents; // Vertex tangents (XYZW - 4 components per vertex) (shader-location = 4) + unsigned char *colors; // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3) + unsigned short *indices; // Vertex indices (in case vertex data comes indexed) + + // Skin data for animation + int boneCount; // Number of bones (MAX: 256 bones) + unsigned char *boneIndices; // Vertex bone indices, up to 4 bones influence by vertex (skinning) (shader-location = 6) + float *boneWeights; // Vertex bone weight, up to 4 bones influence by vertex (skinning) (shader-location = 7) + + // Runtime animation vertex data (CPU skinning) + // NOTE: In case of GPU skinning, not used, pointers are NULL + float *animVertices; // Animated vertex positions (after bones transformations) + float *animNormals; // Animated normals (after bones transformations) + + // OpenGL identifiers + unsigned int vaoId; // OpenGL Vertex Array Object id + unsigned int *vboId; // OpenGL Vertex Buffer Objects id (default vertex data) +} Mesh; + +// Shader +typedef struct Shader { + unsigned int id; // Shader program id + int *locs; // Shader locations array (RL_MAX_SHADER_LOCATIONS) +} Shader; + +// MaterialMap +typedef struct MaterialMap { + Texture2D texture; // Material map texture + Color color; // Material map color + float value; // Material map value +} MaterialMap; + +// Material, includes shader and maps +typedef struct Material { + Shader shader; // Material shader + MaterialMap *maps; // Material maps array (MAX_MATERIAL_MAPS) + float params[4]; // Material generic parameters (if required) +} Material; + +// Transform, vertex transformation data +typedef struct Transform { + Vector3 translation; // Translation + Quaternion rotation; // Rotation + Vector3 scale; // Scale +} Transform; + +// Anim pose, an array of Transform[] +typedef Transform *ModelAnimPose; + +// Bone, skeletal animation bone +typedef struct BoneInfo { + char name[32]; // Bone name + int parent; // Bone parent +} BoneInfo; + +// Skeleton, animation bones hierarchy +typedef struct ModelSkeleton { + int boneCount; // Number of bones + BoneInfo *bones; // Bones information (skeleton) + ModelAnimPose bindPose; // Bones base transformation (Transform[]) +} ModelSkeleton; + +// Model, meshes, materials and animation data +typedef struct Model { + Matrix transform; // Local transform matrix + + int meshCount; // Number of meshes + int materialCount; // Number of materials + Mesh *meshes; // Meshes array + Material *materials; // Materials array + int *meshMaterial; // Mesh material number + + // Animation data + ModelSkeleton skeleton; // Skeleton for animation + + // Runtime animation data (CPU/GPU skinning) + ModelAnimPose currentPose; // Current animation pose (Transform[]) + Matrix *boneMatrices; // Bones animated transformation matrices +} Model; + +// ModelAnimation, contains a full animation sequence +typedef struct ModelAnimation { + char name[32]; // Animation name + + int boneCount; // Number of bones (per pose) + int keyframeCount; // Number of animation key frames + ModelAnimPose *keyframePoses; // Animation sequence keyframe poses [keyframe][pose] +} ModelAnimation; + +// Ray, ray for raycasting +typedef struct Ray { + Vector3 position; // Ray position (origin) + Vector3 direction; // Ray direction (normalized) +} Ray; + +// RayCollision, ray hit information +typedef struct RayCollision { + bool hit; // Did the ray hit something? + float distance; // Distance to the nearest hit + Vector3 point; // Point of the nearest hit + Vector3 normal; // Surface normal of hit +} RayCollision; + +// BoundingBox +typedef struct BoundingBox { + Vector3 min; // Minimum vertex box-corner + Vector3 max; // Maximum vertex box-corner +} BoundingBox; + +// Wave, audio wave data +typedef struct Wave { + unsigned int frameCount; // Total number of frames (considering channels) + unsigned int sampleRate; // Frequency (samples per second) + unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported) + unsigned int channels; // Number of channels (1-mono, 2-stereo, ...) + void *data; // Buffer data pointer +} Wave; + +// Opaque structs declaration +// NOTE: Actual structs are defined internally in raudio module +typedef struct rAudioBuffer rAudioBuffer; +typedef struct rAudioProcessor rAudioProcessor; + +// AudioStream, custom audio stream +typedef struct AudioStream { + rAudioBuffer *buffer; // Pointer to internal data used by the audio system + rAudioProcessor *processor; // Pointer to internal data processor, useful for audio effects + + unsigned int sampleRate; // Frequency (samples per second) + unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported) + unsigned int channels; // Number of channels (1-mono, 2-stereo, ...) +} AudioStream; + +// Sound +typedef struct Sound { + AudioStream stream; // Audio stream + unsigned int frameCount; // Total number of frames (considering channels) +} Sound; + +// Music, audio stream, anything longer than ~10 seconds should be streamed +typedef struct Music { + AudioStream stream; // Audio stream + unsigned int frameCount; // Total number of frames (considering channels) + bool looping; // Music looping enable + + int ctxType; // Type of music context (audio filetype) + void *ctxData; // Audio context data, depends on type +} Music; + +// VrDeviceInfo, Head-Mounted-Display device parameters +typedef struct VrDeviceInfo { + int hResolution; // Horizontal resolution in pixels + int vResolution; // Vertical resolution in pixels + float hScreenSize; // Horizontal size in meters + float vScreenSize; // Vertical size in meters + float eyeToScreenDistance; // Distance between eye and display in meters + float lensSeparationDistance; // Lens separation distance in meters + float interpupillaryDistance; // IPD (distance between pupils) in meters + float lensDistortionValues[4]; // Lens distortion constant parameters + float chromaAbCorrection[4]; // Chromatic aberration correction parameters +} VrDeviceInfo; + +// VrStereoConfig, VR stereo rendering configuration for simulator +typedef struct VrStereoConfig { + Matrix projection[2]; // VR projection matrices (per eye) + Matrix viewOffset[2]; // VR view offset matrices (per eye) + float leftLensCenter[2]; // VR left lens center + float rightLensCenter[2]; // VR right lens center + float leftScreenCenter[2]; // VR left screen center + float rightScreenCenter[2]; // VR right screen center + float scale[2]; // VR distortion scale + float scaleIn[2]; // VR distortion scale in +} VrStereoConfig; + +// File path list +typedef struct FilePathList { + unsigned int count; // Filepaths entries count + char **paths; // Filepaths entries +} FilePathList; + +// Automation event +typedef struct AutomationEvent { + unsigned int frame; // Event frame + unsigned int type; // Event type (AutomationEventType) + int params[4]; // Event parameters (if required) +} AutomationEvent; + +// Automation event list +typedef struct AutomationEventList { + unsigned int capacity; // Events max entries (MAX_AUTOMATION_EVENTS) + unsigned int count; // Events entries count + AutomationEvent *events; // Events entries +} AutomationEventList; + +//---------------------------------------------------------------------------------- +// Enumerators Definition +//---------------------------------------------------------------------------------- +// System/Window config flags +// NOTE: Every bit registers one state (use it with bit masks) +// By default all flags are set to 0 +typedef enum { + FLAG_VSYNC_HINT = 0x00000040, // Set to try enabling V-Sync on GPU + FLAG_FULLSCREEN_MODE = 0x00000002, // Set to run program in fullscreen + FLAG_WINDOW_RESIZABLE = 0x00000004, // Set to allow resizable window + FLAG_WINDOW_UNDECORATED = 0x00000008, // Set to disable window decoration (frame and buttons) + FLAG_WINDOW_HIDDEN = 0x00000080, // Set to hide window + FLAG_WINDOW_MINIMIZED = 0x00000200, // Set to minimize window (iconify) + FLAG_WINDOW_MAXIMIZED = 0x00000400, // Set to maximize window (expanded to monitor) + FLAG_WINDOW_UNFOCUSED = 0x00000800, // Set to window non focused + FLAG_WINDOW_TOPMOST = 0x00001000, // Set to window always on top + FLAG_WINDOW_ALWAYS_RUN = 0x00000100, // Set to allow windows running while minimized + FLAG_WINDOW_TRANSPARENT = 0x00000010, // Set to allow transparent framebuffer + FLAG_WINDOW_HIGHDPI = 0x00002000, // Set to support HighDPI + FLAG_WINDOW_MOUSE_PASSTHROUGH = 0x00004000, // Set to support mouse passthrough, only supported when FLAG_WINDOW_UNDECORATED + FLAG_BORDERLESS_WINDOWED_MODE = 0x00008000, // Set to run program in borderless windowed mode + FLAG_MSAA_4X_HINT = 0x00000020, // Set to try enabling MSAA 4X + FLAG_INTERLACED_HINT = 0x00010000 // Set to try enabling interlaced video format (for V3D) +} ConfigFlags; + +// Trace log level +// NOTE: Organized by priority level +typedef enum { + LOG_ALL = 0, // Display all logs + LOG_TRACE, // Trace logging, intended for internal use only + LOG_DEBUG, // Debug logging, used for internal debugging, it should be disabled on release builds + LOG_INFO, // Info logging, used for program execution info + LOG_WARNING, // Warning logging, used on recoverable failures + LOG_ERROR, // Error logging, used on unrecoverable failures + LOG_FATAL, // Fatal logging, used to abort program: exit(EXIT_FAILURE) + LOG_NONE // Disable logging +} TraceLogLevel; + +// Keyboard keys (US keyboard layout) +// NOTE: Use GetKeyPressed() to allow redefining required keys for alternative layouts +typedef enum { + KEY_NULL = 0, // Key: NULL, used for no key pressed + // Alphanumeric keys + KEY_APOSTROPHE = 39, // Key: ' + KEY_COMMA = 44, // Key: , + KEY_MINUS = 45, // Key: - + KEY_PERIOD = 46, // Key: . + KEY_SLASH = 47, // Key: / + KEY_ZERO = 48, // Key: 0 + KEY_ONE = 49, // Key: 1 + KEY_TWO = 50, // Key: 2 + KEY_THREE = 51, // Key: 3 + KEY_FOUR = 52, // Key: 4 + KEY_FIVE = 53, // Key: 5 + KEY_SIX = 54, // Key: 6 + KEY_SEVEN = 55, // Key: 7 + KEY_EIGHT = 56, // Key: 8 + KEY_NINE = 57, // Key: 9 + KEY_SEMICOLON = 59, // Key: ; + KEY_EQUAL = 61, // Key: = + KEY_A = 65, // Key: A | a + KEY_B = 66, // Key: B | b + KEY_C = 67, // Key: C | c + KEY_D = 68, // Key: D | d + KEY_E = 69, // Key: E | e + KEY_F = 70, // Key: F | f + KEY_G = 71, // Key: G | g + KEY_H = 72, // Key: H | h + KEY_I = 73, // Key: I | i + KEY_J = 74, // Key: J | j + KEY_K = 75, // Key: K | k + KEY_L = 76, // Key: L | l + KEY_M = 77, // Key: M | m + KEY_N = 78, // Key: N | n + KEY_O = 79, // Key: O | o + KEY_P = 80, // Key: P | p + KEY_Q = 81, // Key: Q | q + KEY_R = 82, // Key: R | r + KEY_S = 83, // Key: S | s + KEY_T = 84, // Key: T | t + KEY_U = 85, // Key: U | u + KEY_V = 86, // Key: V | v + KEY_W = 87, // Key: W | w + KEY_X = 88, // Key: X | x + KEY_Y = 89, // Key: Y | y + KEY_Z = 90, // Key: Z | z + KEY_LEFT_BRACKET = 91, // Key: [ + KEY_BACKSLASH = 92, // Key: '\' + KEY_RIGHT_BRACKET = 93, // Key: ] + KEY_GRAVE = 96, // Key: ` + // Function keys + KEY_SPACE = 32, // Key: Space + KEY_ESCAPE = 256, // Key: Esc + KEY_ENTER = 257, // Key: Enter + KEY_TAB = 258, // Key: Tab + KEY_BACKSPACE = 259, // Key: Backspace + KEY_INSERT = 260, // Key: Ins + KEY_DELETE = 261, // Key: Del + KEY_RIGHT = 262, // Key: Cursor right + KEY_LEFT = 263, // Key: Cursor left + KEY_DOWN = 264, // Key: Cursor down + KEY_UP = 265, // Key: Cursor up + KEY_PAGE_UP = 266, // Key: Page up + KEY_PAGE_DOWN = 267, // Key: Page down + KEY_HOME = 268, // Key: Home + KEY_END = 269, // Key: End + KEY_CAPS_LOCK = 280, // Key: Caps lock + KEY_SCROLL_LOCK = 281, // Key: Scroll down + KEY_NUM_LOCK = 282, // Key: Num lock + KEY_PRINT_SCREEN = 283, // Key: Print screen + KEY_PAUSE = 284, // Key: Pause + KEY_F1 = 290, // Key: F1 + KEY_F2 = 291, // Key: F2 + KEY_F3 = 292, // Key: F3 + KEY_F4 = 293, // Key: F4 + KEY_F5 = 294, // Key: F5 + KEY_F6 = 295, // Key: F6 + KEY_F7 = 296, // Key: F7 + KEY_F8 = 297, // Key: F8 + KEY_F9 = 298, // Key: F9 + KEY_F10 = 299, // Key: F10 + KEY_F11 = 300, // Key: F11 + KEY_F12 = 301, // Key: F12 + KEY_LEFT_SHIFT = 340, // Key: Shift left + KEY_LEFT_CONTROL = 341, // Key: Control left + KEY_LEFT_ALT = 342, // Key: Alt left + KEY_LEFT_SUPER = 343, // Key: Super left + KEY_RIGHT_SHIFT = 344, // Key: Shift right + KEY_RIGHT_CONTROL = 345, // Key: Control right + KEY_RIGHT_ALT = 346, // Key: Alt right + KEY_RIGHT_SUPER = 347, // Key: Super right + KEY_KB_MENU = 348, // Key: KB menu + // Keypad keys + KEY_KP_0 = 320, // Key: Keypad 0 + KEY_KP_1 = 321, // Key: Keypad 1 + KEY_KP_2 = 322, // Key: Keypad 2 + KEY_KP_3 = 323, // Key: Keypad 3 + KEY_KP_4 = 324, // Key: Keypad 4 + KEY_KP_5 = 325, // Key: Keypad 5 + KEY_KP_6 = 326, // Key: Keypad 6 + KEY_KP_7 = 327, // Key: Keypad 7 + KEY_KP_8 = 328, // Key: Keypad 8 + KEY_KP_9 = 329, // Key: Keypad 9 + KEY_KP_DECIMAL = 330, // Key: Keypad . + KEY_KP_DIVIDE = 331, // Key: Keypad / + KEY_KP_MULTIPLY = 332, // Key: Keypad * + KEY_KP_SUBTRACT = 333, // Key: Keypad - + KEY_KP_ADD = 334, // Key: Keypad + + KEY_KP_ENTER = 335, // Key: Keypad Enter + KEY_KP_EQUAL = 336, // Key: Keypad = + // Android key buttons + KEY_BACK = 4, // Key: Android back button + KEY_MENU = 5, // Key: Android menu button + KEY_VOLUME_UP = 24, // Key: Android volume up button + KEY_VOLUME_DOWN = 25 // Key: Android volume down button +} KeyboardKey; + +// Add backwards compatibility support for deprecated names +#define MOUSE_LEFT_BUTTON MOUSE_BUTTON_LEFT +#define MOUSE_RIGHT_BUTTON MOUSE_BUTTON_RIGHT +#define MOUSE_MIDDLE_BUTTON MOUSE_BUTTON_MIDDLE + +// Mouse buttons +typedef enum { + MOUSE_BUTTON_LEFT = 0, // Mouse button left + MOUSE_BUTTON_RIGHT = 1, // Mouse button right + MOUSE_BUTTON_MIDDLE = 2, // Mouse button middle (pressed wheel) + MOUSE_BUTTON_SIDE = 3, // Mouse button side (advanced mouse device) + MOUSE_BUTTON_EXTRA = 4, // Mouse button extra (advanced mouse device) + MOUSE_BUTTON_FORWARD = 5, // Mouse button forward (advanced mouse device) + MOUSE_BUTTON_BACK = 6, // Mouse button back (advanced mouse device) +} MouseButton; + +// Mouse cursor +typedef enum { + MOUSE_CURSOR_DEFAULT = 0, // Default pointer shape + MOUSE_CURSOR_ARROW = 1, // Arrow shape + MOUSE_CURSOR_IBEAM = 2, // Text writing cursor shape + MOUSE_CURSOR_CROSSHAIR = 3, // Cross shape + MOUSE_CURSOR_POINTING_HAND = 4, // Pointing hand cursor + MOUSE_CURSOR_RESIZE_EW = 5, // Horizontal resize/move arrow shape + MOUSE_CURSOR_RESIZE_NS = 6, // Vertical resize/move arrow shape + MOUSE_CURSOR_RESIZE_NWSE = 7, // Top-left to bottom-right diagonal resize/move arrow shape + MOUSE_CURSOR_RESIZE_NESW = 8, // The top-right to bottom-left diagonal resize/move arrow shape + MOUSE_CURSOR_RESIZE_ALL = 9, // The omnidirectional resize/move cursor shape + MOUSE_CURSOR_NOT_ALLOWED = 10 // The operation-not-allowed shape +} MouseCursor; + +// Gamepad buttons +typedef enum { + GAMEPAD_BUTTON_UNKNOWN = 0, // Unknown button, for error checking + GAMEPAD_BUTTON_LEFT_FACE_UP, // Gamepad left DPAD up button + GAMEPAD_BUTTON_LEFT_FACE_RIGHT, // Gamepad left DPAD right button + GAMEPAD_BUTTON_LEFT_FACE_DOWN, // Gamepad left DPAD down button + GAMEPAD_BUTTON_LEFT_FACE_LEFT, // Gamepad left DPAD left button + GAMEPAD_BUTTON_RIGHT_FACE_UP, // Gamepad right button up (i.e. PS3: Triangle, Xbox: Y) + GAMEPAD_BUTTON_RIGHT_FACE_RIGHT, // Gamepad right button right (i.e. PS3: Circle, Xbox: B) + GAMEPAD_BUTTON_RIGHT_FACE_DOWN, // Gamepad right button down (i.e. PS3: Cross, Xbox: A) + GAMEPAD_BUTTON_RIGHT_FACE_LEFT, // Gamepad right button left (i.e. PS3: Square, Xbox: X) + GAMEPAD_BUTTON_LEFT_TRIGGER_1, // Gamepad top/back trigger left (first), it could be a trailing button + GAMEPAD_BUTTON_LEFT_TRIGGER_2, // Gamepad top/back trigger left (second), it could be a trailing button + GAMEPAD_BUTTON_RIGHT_TRIGGER_1, // Gamepad top/back trigger right (first), it could be a trailing button + GAMEPAD_BUTTON_RIGHT_TRIGGER_2, // Gamepad top/back trigger right (second), it could be a trailing button + GAMEPAD_BUTTON_MIDDLE_LEFT, // Gamepad center buttons, left one (i.e. PS3: Select) + GAMEPAD_BUTTON_MIDDLE, // Gamepad center buttons, middle one (i.e. PS3: PS, Xbox: XBOX) + GAMEPAD_BUTTON_MIDDLE_RIGHT, // Gamepad center buttons, right one (i.e. PS3: Start) + GAMEPAD_BUTTON_LEFT_THUMB, // Gamepad joystick pressed button left + GAMEPAD_BUTTON_RIGHT_THUMB // Gamepad joystick pressed button right +} GamepadButton; + +// Gamepad axes +typedef enum { + GAMEPAD_AXIS_LEFT_X = 0, // Gamepad left stick X axis + GAMEPAD_AXIS_LEFT_Y = 1, // Gamepad left stick Y axis + GAMEPAD_AXIS_RIGHT_X = 2, // Gamepad right stick X axis + GAMEPAD_AXIS_RIGHT_Y = 3, // Gamepad right stick Y axis + GAMEPAD_AXIS_LEFT_TRIGGER = 4, // Gamepad back trigger left, pressure level: [1..-1] + GAMEPAD_AXIS_RIGHT_TRIGGER = 5 // Gamepad back trigger right, pressure level: [1..-1] +} GamepadAxis; + +// Material map index +typedef enum { + MATERIAL_MAP_ALBEDO = 0, // Albedo material (same as: MATERIAL_MAP_DIFFUSE) + MATERIAL_MAP_METALNESS, // Metalness material (same as: MATERIAL_MAP_SPECULAR) + MATERIAL_MAP_NORMAL, // Normal material + MATERIAL_MAP_ROUGHNESS, // Roughness material + MATERIAL_MAP_OCCLUSION, // Ambient occlusion material + MATERIAL_MAP_EMISSION, // Emission material + MATERIAL_MAP_HEIGHT, // Heightmap material + MATERIAL_MAP_CUBEMAP, // Cubemap material (NOTE: Uses GL_TEXTURE_CUBE_MAP) + MATERIAL_MAP_IRRADIANCE, // Irradiance material (NOTE: Uses GL_TEXTURE_CUBE_MAP) + MATERIAL_MAP_PREFILTER, // Prefilter material (NOTE: Uses GL_TEXTURE_CUBE_MAP) + MATERIAL_MAP_BRDF // Brdf material +} MaterialMapIndex; + +#define MATERIAL_MAP_DIFFUSE MATERIAL_MAP_ALBEDO +#define MATERIAL_MAP_SPECULAR MATERIAL_MAP_METALNESS + +// Shader location index +// NOTE: Some locations are tried to be set automatically on shader loading, +// but only if default attributes/uniforms names are found, check config.h for names +typedef enum { + SHADER_LOC_VERTEX_POSITION = 0, // Shader location: vertex attribute: position + SHADER_LOC_VERTEX_TEXCOORD01, // Shader location: vertex attribute: texcoord01 + SHADER_LOC_VERTEX_TEXCOORD02, // Shader location: vertex attribute: texcoord02 + SHADER_LOC_VERTEX_NORMAL, // Shader location: vertex attribute: normal + SHADER_LOC_VERTEX_TANGENT, // Shader location: vertex attribute: tangent + SHADER_LOC_VERTEX_COLOR, // Shader location: vertex attribute: color + SHADER_LOC_MATRIX_MVP, // Shader location: matrix uniform: model-view-projection + SHADER_LOC_MATRIX_VIEW, // Shader location: matrix uniform: view (camera transform) + SHADER_LOC_MATRIX_PROJECTION, // Shader location: matrix uniform: projection + SHADER_LOC_MATRIX_MODEL, // Shader location: matrix uniform: model (transform) + SHADER_LOC_MATRIX_NORMAL, // Shader location: matrix uniform: normal + SHADER_LOC_VECTOR_VIEW, // Shader location: vector uniform: view + SHADER_LOC_COLOR_DIFFUSE, // Shader location: vector uniform: diffuse color + SHADER_LOC_COLOR_SPECULAR, // Shader location: vector uniform: specular color + SHADER_LOC_COLOR_AMBIENT, // Shader location: vector uniform: ambient color + SHADER_LOC_MAP_ALBEDO, // Shader location: sampler2d texture: albedo (same as: SHADER_LOC_MAP_DIFFUSE) + SHADER_LOC_MAP_METALNESS, // Shader location: sampler2d texture: metalness (same as: SHADER_LOC_MAP_SPECULAR) + SHADER_LOC_MAP_NORMAL, // Shader location: sampler2d texture: normal + SHADER_LOC_MAP_ROUGHNESS, // Shader location: sampler2d texture: roughness + SHADER_LOC_MAP_OCCLUSION, // Shader location: sampler2d texture: occlusion + SHADER_LOC_MAP_EMISSION, // Shader location: sampler2d texture: emission + SHADER_LOC_MAP_HEIGHT, // Shader location: sampler2d texture: heightmap + SHADER_LOC_MAP_CUBEMAP, // Shader location: samplerCube texture: cubemap + SHADER_LOC_MAP_IRRADIANCE, // Shader location: samplerCube texture: irradiance + SHADER_LOC_MAP_PREFILTER, // Shader location: samplerCube texture: prefilter + SHADER_LOC_MAP_BRDF, // Shader location: sampler2d texture: brdf + SHADER_LOC_VERTEX_BONEIDS, // Shader location: vertex attribute: bone indices + SHADER_LOC_VERTEX_BONEWEIGHTS, // Shader location: vertex attribute: bone weights + SHADER_LOC_MATRIX_BONETRANSFORMS, // Shader location: matrix attribute: bone transforms (animation) + SHADER_LOC_VERTEX_INSTANCETRANSFORM // Shader location: vertex attribute: instance transforms +} ShaderLocationIndex; + +#define SHADER_LOC_MAP_DIFFUSE SHADER_LOC_MAP_ALBEDO +#define SHADER_LOC_MAP_SPECULAR SHADER_LOC_MAP_METALNESS + +// Shader uniform data type +typedef enum { + SHADER_UNIFORM_FLOAT = 0, // Shader uniform type: float + SHADER_UNIFORM_VEC2, // Shader uniform type: vec2 (2 float) + SHADER_UNIFORM_VEC3, // Shader uniform type: vec3 (3 float) + SHADER_UNIFORM_VEC4, // Shader uniform type: vec4 (4 float) + SHADER_UNIFORM_INT, // Shader uniform type: int + SHADER_UNIFORM_IVEC2, // Shader uniform type: ivec2 (2 int) + SHADER_UNIFORM_IVEC3, // Shader uniform type: ivec3 (3 int) + SHADER_UNIFORM_IVEC4, // Shader uniform type: ivec4 (4 int) + SHADER_UNIFORM_UINT, // Shader uniform type: unsigned int + SHADER_UNIFORM_UIVEC2, // Shader uniform type: uivec2 (2 unsigned int) + SHADER_UNIFORM_UIVEC3, // Shader uniform type: uivec3 (3 unsigned int) + SHADER_UNIFORM_UIVEC4, // Shader uniform type: uivec4 (4 unsigned int) + SHADER_UNIFORM_SAMPLER2D // Shader uniform type: sampler2d +} ShaderUniformDataType; + +// Shader attribute data types +typedef enum { + SHADER_ATTRIB_FLOAT = 0, // Shader attribute type: float + SHADER_ATTRIB_VEC2, // Shader attribute type: vec2 (2 float) + SHADER_ATTRIB_VEC3, // Shader attribute type: vec3 (3 float) + SHADER_ATTRIB_VEC4 // Shader attribute type: vec4 (4 float) +} ShaderAttributeDataType; + +// Pixel formats +// NOTE: Support depends on OpenGL version and platform +typedef enum { + PIXELFORMAT_UNCOMPRESSED_GRAYSCALE = 1, // 8 bit per pixel (no alpha) + PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA, // 8*2 bpp (2 channels) + PIXELFORMAT_UNCOMPRESSED_R5G6B5, // 16 bpp + PIXELFORMAT_UNCOMPRESSED_R8G8B8, // 24 bpp + PIXELFORMAT_UNCOMPRESSED_R5G5B5A1, // 16 bpp (1 bit alpha) + PIXELFORMAT_UNCOMPRESSED_R4G4B4A4, // 16 bpp (4 bit alpha) + PIXELFORMAT_UNCOMPRESSED_R8G8B8A8, // 32 bpp + PIXELFORMAT_UNCOMPRESSED_R32, // 32 bpp (1 channel - float) + PIXELFORMAT_UNCOMPRESSED_R32G32B32, // 32*3 bpp (3 channels - float) + PIXELFORMAT_UNCOMPRESSED_R32G32B32A32, // 32*4 bpp (4 channels - float) + PIXELFORMAT_UNCOMPRESSED_R16, // 16 bpp (1 channel - half float) + PIXELFORMAT_UNCOMPRESSED_R16G16B16, // 16*3 bpp (3 channels - half float) + PIXELFORMAT_UNCOMPRESSED_R16G16B16A16, // 16*4 bpp (4 channels - half float) + PIXELFORMAT_COMPRESSED_DXT1_RGB, // 4 bpp (no alpha) + PIXELFORMAT_COMPRESSED_DXT1_RGBA, // 4 bpp (1 bit alpha) + PIXELFORMAT_COMPRESSED_DXT3_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_DXT5_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_ETC1_RGB, // 4 bpp + PIXELFORMAT_COMPRESSED_ETC2_RGB, // 4 bpp + PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_PVRT_RGB, // 4 bpp + PIXELFORMAT_COMPRESSED_PVRT_RGBA, // 4 bpp + PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA // 2 bpp +} PixelFormat; + +// Texture parameters: filter mode +// NOTE 1: Filtering considers mipmaps if available in the texture +// NOTE 2: Filter is accordingly set for minification and magnification +typedef enum { + TEXTURE_FILTER_POINT = 0, // No filter, pixel approximation + TEXTURE_FILTER_BILINEAR, // Linear filtering + TEXTURE_FILTER_TRILINEAR, // Trilinear filtering (linear with mipmaps) + TEXTURE_FILTER_ANISOTROPIC_4X, // Anisotropic filtering 4x + TEXTURE_FILTER_ANISOTROPIC_8X, // Anisotropic filtering 8x + TEXTURE_FILTER_ANISOTROPIC_16X, // Anisotropic filtering 16x +} TextureFilter; + +// Texture parameters: wrap mode +typedef enum { + TEXTURE_WRAP_REPEAT = 0, // Repeats texture in tiled mode + TEXTURE_WRAP_CLAMP, // Clamps texture to edge pixel in tiled mode + TEXTURE_WRAP_MIRROR_REPEAT, // Mirrors and repeats the texture in tiled mode + TEXTURE_WRAP_MIRROR_CLAMP // Mirrors and clamps to border the texture in tiled mode +} TextureWrap; + +// Cubemap layouts +typedef enum { + CUBEMAP_LAYOUT_AUTO_DETECT = 0, // Automatically detect layout type + CUBEMAP_LAYOUT_LINE_VERTICAL, // Layout is defined by a vertical line with faces + CUBEMAP_LAYOUT_LINE_HORIZONTAL, // Layout is defined by a horizontal line with faces + CUBEMAP_LAYOUT_CROSS_THREE_BY_FOUR, // Layout is defined by a 3x4 cross with cubemap faces + CUBEMAP_LAYOUT_CROSS_FOUR_BY_THREE // Layout is defined by a 4x3 cross with cubemap faces +} CubemapLayout; + +// Font type, defines generation method +typedef enum { + FONT_DEFAULT = 0, // Default font generation, anti-aliased + FONT_BITMAP, // Bitmap font generation, no anti-aliasing + FONT_SDF // SDF font generation, requires external shader +} FontType; + +// Color blending modes (pre-defined) +typedef enum { + BLEND_ALPHA = 0, // Blend textures considering alpha (default) + BLEND_ADDITIVE, // Blend textures adding colors + BLEND_MULTIPLIED, // Blend textures multiplying colors + BLEND_ADD_COLORS, // Blend textures adding colors (alternative) + BLEND_SUBTRACT_COLORS, // Blend textures subtracting colors (alternative) + BLEND_ALPHA_PREMULTIPLY, // Blend premultiplied textures considering alpha + BLEND_CUSTOM, // Blend textures using custom src/dst factors (use rlSetBlendFactors()) + BLEND_CUSTOM_SEPARATE // Blend textures using custom rgb/alpha separate src/dst factors (use rlSetBlendFactorsSeparate()) +} BlendMode; + +// Gesture +// NOTE: Provided as bit-wise flags to enable only desired gestures +typedef enum { + GESTURE_NONE = 0, // No gesture + GESTURE_TAP = 1, // Tap gesture + GESTURE_DOUBLETAP = 2, // Double tap gesture + GESTURE_HOLD = 4, // Hold gesture + GESTURE_DRAG = 8, // Drag gesture + GESTURE_SWIPE_RIGHT = 16, // Swipe right gesture + GESTURE_SWIPE_LEFT = 32, // Swipe left gesture + GESTURE_SWIPE_UP = 64, // Swipe up gesture + GESTURE_SWIPE_DOWN = 128, // Swipe down gesture + GESTURE_PINCH_IN = 256, // Pinch in gesture + GESTURE_PINCH_OUT = 512 // Pinch out gesture +} Gesture; + +// Camera system modes +typedef enum { + CAMERA_CUSTOM = 0, // Camera custom, controlled by user (UpdateCamera() does nothing) + CAMERA_FREE, // Camera free mode + CAMERA_ORBITAL, // Camera orbital, around target, zoom supported + CAMERA_FIRST_PERSON, // Camera first person + CAMERA_THIRD_PERSON // Camera third person +} CameraMode; + +// Camera projection +typedef enum { + CAMERA_PERSPECTIVE = 0, // Perspective projection + CAMERA_ORTHOGRAPHIC // Orthographic projection +} CameraProjection; + +// N-patch layout +typedef enum { + NPATCH_NINE_PATCH = 0, // Npatch layout: 3x3 tiles + NPATCH_THREE_PATCH_VERTICAL, // Npatch layout: 1x3 tiles + NPATCH_THREE_PATCH_HORIZONTAL // Npatch layout: 3x1 tiles +} NPatchLayout; + +// Callbacks to hook some internal functions +// WARNING: These callbacks are intended for advanced users +typedef void (*TraceLogCallback)(int logLevel, const char *text, va_list args); // Logging: Redirect trace log messages +typedef unsigned char *(*LoadFileDataCallback)(const char *fileName, int *dataSize); // FileIO: Load binary data +typedef bool (*SaveFileDataCallback)(const char *fileName, void *data, int dataSize); // FileIO: Save binary data +typedef char *(*LoadFileTextCallback)(const char *fileName); // FileIO: Load text data +typedef bool (*SaveFileTextCallback)(const char *fileName, const char *text); // FileIO: Save text data + +//------------------------------------------------------------------------------------ +// Global Variables Definition +//------------------------------------------------------------------------------------ +// It's lonely here... + +//------------------------------------------------------------------------------------ +// Window and Graphics Device Functions (Module: core) +//------------------------------------------------------------------------------------ + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif + +// Window-related functions +RLAPI void InitWindow(int width, int height, const char *title); // Initialize window and OpenGL context +RLAPI void CloseWindow(void); // Close window and unload OpenGL context +RLAPI bool WindowShouldClose(void); // Check if application should close (KEY_ESCAPE pressed or windows close icon clicked) +RLAPI bool IsWindowReady(void); // Check if window has been initialized successfully +RLAPI bool IsWindowFullscreen(void); // Check if window is currently fullscreen +RLAPI bool IsWindowHidden(void); // Check if window is currently hidden +RLAPI bool IsWindowMinimized(void); // Check if window is currently minimized +RLAPI bool IsWindowMaximized(void); // Check if window is currently maximized +RLAPI bool IsWindowFocused(void); // Check if window is currently focused +RLAPI bool IsWindowResized(void); // Check if window has been resized last frame +RLAPI bool IsWindowState(unsigned int flag); // Check if one specific window flag is enabled +RLAPI void SetWindowState(unsigned int flags); // Set window configuration state using flags +RLAPI void ClearWindowState(unsigned int flags); // Clear window configuration state flags +RLAPI void ToggleFullscreen(void); // Toggle window state: fullscreen/windowed, resizes monitor to match window resolution +RLAPI void ToggleBorderlessWindowed(void); // Toggle window state: borderless windowed, resizes window to match monitor resolution +RLAPI void MaximizeWindow(void); // Set window state: maximized, if resizable +RLAPI void MinimizeWindow(void); // Set window state: minimized, if resizable +RLAPI void RestoreWindow(void); // Restore window from being minimized/maximized +RLAPI void SetWindowIcon(Image image); // Set icon for window (single image, RGBA 32bit) +RLAPI void SetWindowIcons(Image *images, int count); // Set icon for window (multiple images, RGBA 32bit) +RLAPI void SetWindowTitle(const char *title); // Set title for window +RLAPI void SetWindowPosition(int x, int y); // Set window position on screen +RLAPI void SetWindowMonitor(int monitor); // Set monitor for the current window +RLAPI void SetWindowMinSize(int width, int height); // Set window minimum dimensions (for FLAG_WINDOW_RESIZABLE) +RLAPI void SetWindowMaxSize(int width, int height); // Set window maximum dimensions (for FLAG_WINDOW_RESIZABLE) +RLAPI void SetWindowSize(int width, int height); // Set window dimensions +RLAPI void SetWindowOpacity(float opacity); // Set window opacity [0.0f..1.0f] +RLAPI void SetWindowFocused(void); // Set window focused +RLAPI void *GetWindowHandle(void); // Get native window handle +RLAPI int GetScreenWidth(void); // Get current screen width +RLAPI int GetScreenHeight(void); // Get current screen height +RLAPI int GetRenderWidth(void); // Get current render width (it considers HiDPI) +RLAPI int GetRenderHeight(void); // Get current render height (it considers HiDPI) +RLAPI int GetMonitorCount(void); // Get number of connected monitors +RLAPI int GetCurrentMonitor(void); // Get current monitor where window is placed +RLAPI Vector2 GetMonitorPosition(int monitor); // Get specified monitor position +RLAPI int GetMonitorWidth(int monitor); // Get specified monitor width (current video mode used by monitor) +RLAPI int GetMonitorHeight(int monitor); // Get specified monitor height (current video mode used by monitor) +RLAPI int GetMonitorPhysicalWidth(int monitor); // Get specified monitor physical width in millimetres +RLAPI int GetMonitorPhysicalHeight(int monitor); // Get specified monitor physical height in millimetres +RLAPI int GetMonitorRefreshRate(int monitor); // Get specified monitor refresh rate +RLAPI Vector2 GetWindowPosition(void); // Get window position XY on monitor +RLAPI Vector2 GetWindowScaleDPI(void); // Get window scale DPI factor +RLAPI const char *GetMonitorName(int monitor); // Get the human-readable, UTF-8 encoded name of the specified monitor +RLAPI void SetClipboardText(const char *text); // Set clipboard text content +RLAPI const char *GetClipboardText(void); // Get clipboard text content +RLAPI Image GetClipboardImage(void); // Get clipboard image content +RLAPI void EnableEventWaiting(void); // Enable waiting for events on EndDrawing(), no automatic event polling +RLAPI void DisableEventWaiting(void); // Disable waiting for events on EndDrawing(), automatic events polling + +// Cursor-related functions +RLAPI void ShowCursor(void); // Shows cursor +RLAPI void HideCursor(void); // Hides cursor +RLAPI bool IsCursorHidden(void); // Check if cursor is not visible +RLAPI void EnableCursor(void); // Enables cursor (unlock cursor) +RLAPI void DisableCursor(void); // Disables cursor (lock cursor) +RLAPI bool IsCursorOnScreen(void); // Check if cursor is on the screen + +// Drawing-related functions +RLAPI void ClearBackground(Color color); // Set background color (framebuffer clear color) +RLAPI void BeginDrawing(void); // Setup canvas (framebuffer) to start drawing +RLAPI void EndDrawing(void); // End canvas drawing and swap buffers (double buffering) +RLAPI void BeginMode2D(Camera2D camera); // Begin 2D mode with custom camera (2D) +RLAPI void EndMode2D(void); // Ends 2D mode with custom camera +RLAPI void BeginMode3D(Camera3D camera); // Begin 3D mode with custom camera (3D) +RLAPI void EndMode3D(void); // Ends 3D mode and returns to default 2D orthographic mode +RLAPI void BeginTextureMode(RenderTexture2D target); // Begin drawing to render texture +RLAPI void EndTextureMode(void); // Ends drawing to render texture +RLAPI void BeginShaderMode(Shader shader); // Begin custom shader drawing +RLAPI void EndShaderMode(void); // End custom shader drawing (use default shader) +RLAPI void BeginBlendMode(int mode); // Begin blending mode (alpha, additive, multiplied, subtract, custom) +RLAPI void EndBlendMode(void); // End blending mode (reset to default: alpha blending) +RLAPI void BeginScissorMode(int x, int y, int width, int height); // Begin scissor mode (define screen area for following drawing) +RLAPI void EndScissorMode(void); // End scissor mode +RLAPI void BeginVrStereoMode(VrStereoConfig config); // Begin stereo rendering (requires VR simulator) +RLAPI void EndVrStereoMode(void); // End stereo rendering (requires VR simulator) + +// VR stereo config functions for VR simulator +RLAPI VrStereoConfig LoadVrStereoConfig(VrDeviceInfo device); // Load VR stereo config for VR simulator device parameters +RLAPI void UnloadVrStereoConfig(VrStereoConfig config); // Unload VR stereo config + +// Shader management functions +// NOTE: Shader functionality is not available on OpenGL 1.1 +RLAPI Shader LoadShader(const char *vsFileName, const char *fsFileName); // Load shader from files and bind default locations +RLAPI Shader LoadShaderFromMemory(const char *vsCode, const char *fsCode); // Load shader from code strings and bind default locations +RLAPI bool IsShaderValid(Shader shader); // Check if a shader is valid (loaded on GPU) +RLAPI int GetShaderLocation(Shader shader, const char *uniformName); // Get shader uniform location +RLAPI int GetShaderLocationAttrib(Shader shader, const char *attribName); // Get shader attribute location +RLAPI void SetShaderValue(Shader shader, int locIndex, const void *value, int uniformType); // Set shader uniform value +RLAPI void SetShaderValueV(Shader shader, int locIndex, const void *value, int uniformType, int count); // Set shader uniform value vector +RLAPI void SetShaderValueMatrix(Shader shader, int locIndex, Matrix mat); // Set shader uniform value (matrix 4x4) +RLAPI void SetShaderValueTexture(Shader shader, int locIndex, Texture2D texture); // Set shader uniform value and bind the texture (sampler2d) +RLAPI void UnloadShader(Shader shader); // Unload shader from GPU memory (VRAM) + +// Screen-space-related functions +#define GetMouseRay GetScreenToWorldRay // Compatibility hack for previous raylib versions +RLAPI Ray GetScreenToWorldRay(Vector2 position, Camera camera); // Get a ray trace from screen position (i.e mouse) +RLAPI Ray GetScreenToWorldRayEx(Vector2 position, Camera camera, int width, int height); // Get a ray trace from screen position (i.e mouse) in a viewport +RLAPI Vector2 GetWorldToScreen(Vector3 position, Camera camera); // Get the screen space position for a 3d world space position +RLAPI Vector2 GetWorldToScreenEx(Vector3 position, Camera camera, int width, int height); // Get size position for a 3d world space position +RLAPI Vector2 GetWorldToScreen2D(Vector2 position, Camera2D camera); // Get the screen space position for a 2d camera world space position +RLAPI Vector2 GetScreenToWorld2D(Vector2 position, Camera2D camera); // Get the world space position for a 2d camera screen space position +RLAPI Matrix GetCameraMatrix(Camera camera); // Get camera transform matrix (view matrix) +RLAPI Matrix GetCameraMatrix2D(Camera2D camera); // Get camera 2d transform matrix + +// Timing-related functions +RLAPI void SetTargetFPS(int fps); // Set target FPS (maximum) +RLAPI float GetFrameTime(void); // Get time in seconds for last frame drawn (delta time) +RLAPI double GetTime(void); // Get elapsed time in seconds since InitWindow() +RLAPI int GetFPS(void); // Get current FPS + +// Custom frame control functions +// NOTE: Those functions are intended for advanced users that want full control over the frame processing +// By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timing + PollInputEvents() +// To avoid that behaviour and control frame processes manually, enable in config.h: SUPPORT_CUSTOM_FRAME_CONTROL +RLAPI void SwapScreenBuffer(void); // Swap back buffer with front buffer (screen drawing) +RLAPI void PollInputEvents(void); // Register all input events +RLAPI void WaitTime(double seconds); // Wait for some time (halt program execution) + +// Random values generation functions +RLAPI void SetRandomSeed(unsigned int seed); // Set the seed for the random number generator +RLAPI int GetRandomValue(int min, int max); // Get a random value between min and max (both included) +RLAPI int *LoadRandomSequence(unsigned int count, int min, int max); // Load random values sequence, no values repeated +RLAPI void UnloadRandomSequence(int *sequence); // Unload random values sequence + +// Misc. functions +RLAPI void TakeScreenshot(const char *fileName); // Takes a screenshot of current screen (filename extension defines format) +RLAPI void SetConfigFlags(unsigned int flags); // Setup init configuration flags (view FLAGS) +RLAPI void OpenURL(const char *url); // Open URL with default system browser (if available) + +// Logging system +RLAPI void SetTraceLogLevel(int logLevel); // Set the current threshold (minimum) log level +RLAPI void TraceLog(int logLevel, const char *text, ...); // Show trace log messages (LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERROR...) +RLAPI void SetTraceLogCallback(TraceLogCallback callback); // Set custom trace log + +// Memory management, using internal allocators +RLAPI void *MemAlloc(unsigned int size); // Internal memory allocator +RLAPI void *MemRealloc(void *ptr, unsigned int size); // Internal memory reallocator +RLAPI void MemFree(void *ptr); // Internal memory free + +// File system management functions +RLAPI unsigned char *LoadFileData(const char *fileName, int *dataSize); // Load file data as byte array (read) +RLAPI void UnloadFileData(unsigned char *data); // Unload file data allocated by LoadFileData() +RLAPI bool SaveFileData(const char *fileName, void *data, int dataSize); // Save data to file from byte array (write), returns true on success +RLAPI bool ExportDataAsCode(const unsigned char *data, int dataSize, const char *fileName); // Export data to code (.h), returns true on success +RLAPI char *LoadFileText(const char *fileName); // Load text data from file (read), returns a '\0' terminated string +RLAPI void UnloadFileText(char *text); // Unload file text data allocated by LoadFileText() +RLAPI bool SaveFileText(const char *fileName, const char *text); // Save text data to file (write), string must be '\0' terminated, returns true on success + +// File access custom callbacks +// WARNING: Callbacks setup is intended for advanced users +RLAPI void SetLoadFileDataCallback(LoadFileDataCallback callback); // Set custom file binary data loader +RLAPI void SetSaveFileDataCallback(SaveFileDataCallback callback); // Set custom file binary data saver +RLAPI void SetLoadFileTextCallback(LoadFileTextCallback callback); // Set custom file text data loader +RLAPI void SetSaveFileTextCallback(SaveFileTextCallback callback); // Set custom file text data saver + +RLAPI int FileRename(const char *fileName, const char *fileRename); // Rename file (if exists) +RLAPI int FileRemove(const char *fileName); // Remove file (if exists) +RLAPI int FileCopy(const char *srcPath, const char *dstPath); // Copy file from one path to another, dstPath created if it doesn't exist +RLAPI int FileMove(const char *srcPath, const char *dstPath); // Move file from one directory to another, dstPath created if it doesn't exist +RLAPI int FileTextReplace(const char *fileName, const char *search, const char *replacement); // Replace text in an existing file +RLAPI int FileTextFindIndex(const char *fileName, const char *search); // Find text in existing file +RLAPI bool FileExists(const char *fileName); // Check if file exists +RLAPI bool DirectoryExists(const char *dirPath); // Check if a directory path exists +RLAPI bool IsFileExtension(const char *fileName, const char *ext); // Check file extension (recommended include point: .png, .wav) +RLAPI int GetFileLength(const char *fileName); // Get file length in bytes (NOTE: GetFileSize() conflicts with windows.h) +RLAPI long GetFileModTime(const char *fileName); // Get file modification time (last write time) +RLAPI const char *GetFileExtension(const char *fileName); // Get pointer to extension for a filename string (includes dot: '.png') +RLAPI const char *GetFileName(const char *filePath); // Get pointer to filename for a path string +RLAPI const char *GetFileNameWithoutExt(const char *filePath); // Get filename string without extension (uses static string) +RLAPI const char *GetDirectoryPath(const char *filePath); // Get full path for a given fileName with path (uses static string) +RLAPI const char *GetPrevDirectoryPath(const char *dirPath); // Get previous directory path for a given path (uses static string) +RLAPI const char *GetWorkingDirectory(void); // Get current working directory (uses static string) +RLAPI const char *GetApplicationDirectory(void); // Get the directory of the running application (uses static string) +RLAPI int MakeDirectory(const char *dirPath); // Create directories (including full path requested), returns 0 on success +RLAPI bool ChangeDirectory(const char *dirPath); // Change working directory, return true on success +RLAPI bool IsPathFile(const char *path); // Check if a given path is a file or a directory +RLAPI bool IsFileNameValid(const char *fileName); // Check if fileName is valid for the platform/OS +RLAPI FilePathList LoadDirectoryFiles(const char *dirPath); // Load directory filepaths +RLAPI FilePathList LoadDirectoryFilesEx(const char *basePath, const char *filter, bool scanSubdirs); // Load directory filepaths with extension filtering and recursive directory scan. Use 'DIR' in the filter string to include directories in the result +RLAPI void UnloadDirectoryFiles(FilePathList files); // Unload filepaths +RLAPI bool IsFileDropped(void); // Check if a file has been dropped into window +RLAPI FilePathList LoadDroppedFiles(void); // Load dropped filepaths +RLAPI void UnloadDroppedFiles(FilePathList files); // Unload dropped filepaths +RLAPI unsigned int GetDirectoryFileCount(const char *dirPath); // Get the file count in a directory +RLAPI unsigned int GetDirectoryFileCountEx(const char *basePath, const char *filter, bool scanSubdirs); // Get the file count in a directory with extension filtering and recursive directory scan. Use 'DIR' in the filter string to include directories in the result + +// Compression/Encoding functionality +RLAPI unsigned char *CompressData(const unsigned char *data, int dataSize, int *compDataSize); // Compress data (DEFLATE algorithm), memory must be MemFree() +RLAPI unsigned char *DecompressData(const unsigned char *compData, int compDataSize, int *dataSize); // Decompress data (DEFLATE algorithm), memory must be MemFree() +RLAPI char *EncodeDataBase64(const unsigned char *data, int dataSize, int *outputSize); // Encode data to Base64 string (includes NULL terminator), memory must be MemFree() +RLAPI unsigned char *DecodeDataBase64(const char *text, int *outputSize); // Decode Base64 string (expected NULL terminated), memory must be MemFree() +RLAPI unsigned int ComputeCRC32(unsigned char *data, int dataSize); // Compute CRC32 hash code +RLAPI unsigned int *ComputeMD5(unsigned char *data, int dataSize); // Compute MD5 hash code, returns static int[4] (16 bytes) +RLAPI unsigned int *ComputeSHA1(unsigned char *data, int dataSize); // Compute SHA1 hash code, returns static int[5] (20 bytes) +RLAPI unsigned int *ComputeSHA256(unsigned char *data, int dataSize); // Compute SHA256 hash code, returns static int[8] (32 bytes) + +// Automation events functionality +RLAPI AutomationEventList LoadAutomationEventList(const char *fileName); // Load automation events list from file, NULL for empty list, capacity = MAX_AUTOMATION_EVENTS +RLAPI void UnloadAutomationEventList(AutomationEventList list); // Unload automation events list from file +RLAPI bool ExportAutomationEventList(AutomationEventList list, const char *fileName); // Export automation events list as text file +RLAPI void SetAutomationEventList(AutomationEventList *list); // Set automation event list to record to +RLAPI void SetAutomationEventBaseFrame(int frame); // Set automation event internal base frame to start recording +RLAPI void StartAutomationEventRecording(void); // Start recording automation events (AutomationEventList must be set) +RLAPI void StopAutomationEventRecording(void); // Stop recording automation events +RLAPI void PlayAutomationEvent(AutomationEvent event); // Play a recorded automation event + +//------------------------------------------------------------------------------------ +// Input Handling Functions (Module: core) +//------------------------------------------------------------------------------------ + +// Input-related functions: keyboard +RLAPI bool IsKeyPressed(int key); // Check if a key has been pressed once +RLAPI bool IsKeyPressedRepeat(int key); // Check if a key has been pressed again +RLAPI bool IsKeyDown(int key); // Check if a key is being pressed +RLAPI bool IsKeyReleased(int key); // Check if a key has been released once +RLAPI bool IsKeyUp(int key); // Check if a key is NOT being pressed +RLAPI int GetKeyPressed(void); // Get key pressed (keycode), call it multiple times for keys queued, returns 0 when the queue is empty +RLAPI int GetCharPressed(void); // Get char pressed (unicode), call it multiple times for chars queued, returns 0 when the queue is empty +RLAPI const char *GetKeyName(int key); // Get name of a QWERTY key on the current keyboard layout (eg returns string 'q' for KEY_A on an AZERTY keyboard) +RLAPI void SetExitKey(int key); // Set a custom key to exit program (default is ESC) + +// Input-related functions: gamepads +RLAPI bool IsGamepadAvailable(int gamepad); // Check if a gamepad is available +RLAPI const char *GetGamepadName(int gamepad); // Get gamepad internal name id +RLAPI bool IsGamepadButtonPressed(int gamepad, int button); // Check if a gamepad button has been pressed once +RLAPI bool IsGamepadButtonDown(int gamepad, int button); // Check if a gamepad button is being pressed +RLAPI bool IsGamepadButtonReleased(int gamepad, int button); // Check if a gamepad button has been released once +RLAPI bool IsGamepadButtonUp(int gamepad, int button); // Check if a gamepad button is NOT being pressed +RLAPI int GetGamepadButtonPressed(void); // Get the last gamepad button pressed +RLAPI int GetGamepadAxisCount(int gamepad); // Get axis count for a gamepad +RLAPI float GetGamepadAxisMovement(int gamepad, int axis); // Get movement value for a gamepad axis +RLAPI int SetGamepadMappings(const char *mappings); // Set internal gamepad mappings (SDL_GameControllerDB) +RLAPI void SetGamepadVibration(int gamepad, float leftMotor, float rightMotor, float duration); // Set gamepad vibration for both motors (duration in seconds) + +// Input-related functions: mouse +RLAPI bool IsMouseButtonPressed(int button); // Check if a mouse button has been pressed once +RLAPI bool IsMouseButtonDown(int button); // Check if a mouse button is being pressed +RLAPI bool IsMouseButtonReleased(int button); // Check if a mouse button has been released once +RLAPI bool IsMouseButtonUp(int button); // Check if a mouse button is NOT being pressed +RLAPI int GetMouseX(void); // Get mouse position X +RLAPI int GetMouseY(void); // Get mouse position Y +RLAPI Vector2 GetMousePosition(void); // Get mouse position XY +RLAPI Vector2 GetMouseDelta(void); // Get mouse delta between frames +RLAPI void SetMousePosition(int x, int y); // Set mouse position XY +RLAPI void SetMouseOffset(int offsetX, int offsetY); // Set mouse offset +RLAPI void SetMouseScale(float scaleX, float scaleY); // Set mouse scaling +RLAPI float GetMouseWheelMove(void); // Get mouse wheel movement for X or Y, whichever is larger +RLAPI Vector2 GetMouseWheelMoveV(void); // Get mouse wheel movement for both X and Y +RLAPI void SetMouseCursor(int cursor); // Set mouse cursor + +// Input-related functions: touch +RLAPI int GetTouchX(void); // Get touch position X for touch point 0 (relative to screen size) +RLAPI int GetTouchY(void); // Get touch position Y for touch point 0 (relative to screen size) +RLAPI Vector2 GetTouchPosition(int index); // Get touch position XY for a touch point index (relative to screen size) +RLAPI int GetTouchPointId(int index); // Get touch point identifier for given index +RLAPI int GetTouchPointCount(void); // Get number of touch points + +//------------------------------------------------------------------------------------ +// Gestures and Touch Handling Functions (Module: rgestures) +//------------------------------------------------------------------------------------ +RLAPI void SetGesturesEnabled(unsigned int flags); // Enable a set of gestures using flags +RLAPI bool IsGestureDetected(unsigned int gesture); // Check if a gesture have been detected +RLAPI int GetGestureDetected(void); // Get latest detected gesture +RLAPI float GetGestureHoldDuration(void); // Get gesture hold time in seconds +RLAPI Vector2 GetGestureDragVector(void); // Get gesture drag vector +RLAPI float GetGestureDragAngle(void); // Get gesture drag angle +RLAPI Vector2 GetGesturePinchVector(void); // Get gesture pinch delta +RLAPI float GetGesturePinchAngle(void); // Get gesture pinch angle + +//------------------------------------------------------------------------------------ +// Camera System Functions (Module: rcamera) +//------------------------------------------------------------------------------------ +RLAPI void UpdateCamera(Camera *camera, int mode); // Update camera position for selected mode +RLAPI void UpdateCameraPro(Camera *camera, Vector3 movement, Vector3 rotation, float zoom); // Update camera movement/rotation + +//------------------------------------------------------------------------------------ +// Basic Shapes Drawing Functions (Module: shapes) +//------------------------------------------------------------------------------------ +// Set texture and rectangle to be used on shapes drawing +// NOTE: It can be useful when using basic shapes and one single font, +// defining a font char white rectangle would allow drawing everything in a single draw call +RLAPI void SetShapesTexture(Texture2D texture, Rectangle source); // Set texture and rectangle to be used on shapes drawing +RLAPI Texture2D GetShapesTexture(void); // Get texture that is used for shapes drawing +RLAPI Rectangle GetShapesTextureRectangle(void); // Get texture source rectangle that is used for shapes drawing + +// Basic shapes drawing functions +RLAPI void DrawPixel(int posX, int posY, Color color); // Draw a pixel using geometry [Can be slow, use with care] +RLAPI void DrawPixelV(Vector2 position, Color color); // Draw a pixel using geometry (Vector version) [Can be slow, use with care] +RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw a line +RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color); // Draw a line (using gl lines) +RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw a line (using triangles/quads) +RLAPI void DrawLineStrip(const Vector2 *points, int pointCount, Color color); // Draw lines sequence (using gl lines) +RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw line segment cubic-bezier in-out interpolation +RLAPI void DrawLineDashed(Vector2 startPos, Vector2 endPos, int dashSize, int spaceSize, Color color); // Draw a dashed line +RLAPI void DrawCircle(int centerX, int centerY, float radius, Color color); // Draw a color-filled circle +RLAPI void DrawCircleSector(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw a piece of a circle +RLAPI void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw circle sector outline +RLAPI void DrawCircleGradient(int centerX, int centerY, float radius, Color inner, Color outer); // Draw a gradient-filled circle +RLAPI void DrawCircleV(Vector2 center, float radius, Color color); // Draw a color-filled circle (Vector version) +RLAPI void DrawCircleLines(int centerX, int centerY, float radius, Color color); // Draw circle outline +RLAPI void DrawCircleLinesV(Vector2 center, float radius, Color color); // Draw circle outline (Vector version) +RLAPI void DrawEllipse(int centerX, int centerY, float radiusH, float radiusV, Color color); // Draw ellipse +RLAPI void DrawEllipseV(Vector2 center, float radiusH, float radiusV, Color color); // Draw ellipse (Vector version) +RLAPI void DrawEllipseLines(int centerX, int centerY, float radiusH, float radiusV, Color color); // Draw ellipse outline +RLAPI void DrawEllipseLinesV(Vector2 center, float radiusH, float radiusV, Color color); // Draw ellipse outline (Vector version) +RLAPI void DrawRing(Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color); // Draw ring +RLAPI void DrawRingLines(Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color); // Draw ring outline +RLAPI void DrawRectangle(int posX, int posY, int width, int height, Color color); // Draw a color-filled rectangle +RLAPI void DrawRectangleV(Vector2 position, Vector2 size, Color color); // Draw a color-filled rectangle (Vector version) +RLAPI void DrawRectangleRec(Rectangle rec, Color color); // Draw a color-filled rectangle +RLAPI void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color); // Draw a color-filled rectangle with pro parameters +RLAPI void DrawRectangleGradientV(int posX, int posY, int width, int height, Color top, Color bottom); // Draw a vertical-gradient-filled rectangle +RLAPI void DrawRectangleGradientH(int posX, int posY, int width, int height, Color left, Color right); // Draw a horizontal-gradient-filled rectangle +RLAPI void DrawRectangleGradientEx(Rectangle rec, Color topLeft, Color bottomLeft, Color bottomRight, Color topRight); // Draw a gradient-filled rectangle with custom vertex colors +RLAPI void DrawRectangleLines(int posX, int posY, int width, int height, Color color); // Draw rectangle outline +RLAPI void DrawRectangleLinesEx(Rectangle rec, float lineThick, Color color); // Draw rectangle outline with extended parameters +RLAPI void DrawRectangleRounded(Rectangle rec, float roundness, int segments, Color color); // Draw rectangle with rounded edges +RLAPI void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segments, Color color); // Draw rectangle lines with rounded edges +RLAPI void DrawRectangleRoundedLinesEx(Rectangle rec, float roundness, int segments, float lineThick, Color color); // Draw rectangle with rounded edges outline +RLAPI void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw a color-filled triangle (vertex in counter-clockwise order!) +RLAPI void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw triangle outline (vertex in counter-clockwise order!) +RLAPI void DrawTriangleFan(const Vector2 *points, int pointCount, Color color); // Draw a triangle fan defined by points (first vertex is the center) +RLAPI void DrawTriangleStrip(const Vector2 *points, int pointCount, Color color); // Draw a triangle strip defined by points +RLAPI void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color); // Draw a regular polygon (Vector version) +RLAPI void DrawPolyLines(Vector2 center, int sides, float radius, float rotation, Color color); // Draw a polygon outline of n sides +RLAPI void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float lineThick, Color color); // Draw a polygon outline of n sides with extended parameters + +// Splines drawing functions +RLAPI void DrawSplineLinear(const Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Linear, minimum 2 points +RLAPI void DrawSplineBasis(const Vector2 *points, int pointCount, float thick, Color color); // Draw spline: B-Spline, minimum 4 points +RLAPI void DrawSplineCatmullRom(const Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Catmull-Rom, minimum 4 points +RLAPI void DrawSplineBezierQuadratic(const Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Quadratic Bezier, minimum 3 points (1 control point): [p1, c2, p3, c4...] +RLAPI void DrawSplineBezierCubic(const Vector2 *points, int pointCount, float thick, Color color); // Draw spline: Cubic Bezier, minimum 4 points (2 control points): [p1, c2, c3, p4, c5, c6...] +RLAPI void DrawSplineSegmentLinear(Vector2 p1, Vector2 p2, float thick, Color color); // Draw spline segment: Linear, 2 points +RLAPI void DrawSplineSegmentBasis(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: B-Spline, 4 points +RLAPI void DrawSplineSegmentCatmullRom(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float thick, Color color); // Draw spline segment: Catmull-Rom, 4 points +RLAPI void DrawSplineSegmentBezierQuadratic(Vector2 p1, Vector2 c2, Vector2 p3, float thick, Color color); // Draw spline segment: Quadratic Bezier, 2 points, 1 control point +RLAPI void DrawSplineSegmentBezierCubic(Vector2 p1, Vector2 c2, Vector2 c3, Vector2 p4, float thick, Color color); // Draw spline segment: Cubic Bezier, 2 points, 2 control points + +// Spline segment point evaluation functions, for a given t [0.0f .. 1.0f] +RLAPI Vector2 GetSplinePointLinear(Vector2 startPos, Vector2 endPos, float t); // Get (evaluate) spline point: Linear +RLAPI Vector2 GetSplinePointBasis(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float t); // Get (evaluate) spline point: B-Spline +RLAPI Vector2 GetSplinePointCatmullRom(Vector2 p1, Vector2 p2, Vector2 p3, Vector2 p4, float t); // Get (evaluate) spline point: Catmull-Rom +RLAPI Vector2 GetSplinePointBezierQuad(Vector2 p1, Vector2 c2, Vector2 p3, float t); // Get (evaluate) spline point: Quadratic Bezier +RLAPI Vector2 GetSplinePointBezierCubic(Vector2 p1, Vector2 c2, Vector2 c3, Vector2 p4, float t); // Get (evaluate) spline point: Cubic Bezier + +// Basic shapes collision detection functions +RLAPI bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2); // Check collision between two rectangles +RLAPI bool CheckCollisionCircles(Vector2 center1, float radius1, Vector2 center2, float radius2); // Check collision between two circles +RLAPI bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec); // Check collision between circle and rectangle +RLAPI bool CheckCollisionCircleLine(Vector2 center, float radius, Vector2 p1, Vector2 p2); // Check if circle collides with a line created betweeen two points [p1] and [p2] +RLAPI bool CheckCollisionPointRec(Vector2 point, Rectangle rec); // Check if point is inside rectangle +RLAPI bool CheckCollisionPointCircle(Vector2 point, Vector2 center, float radius); // Check if point is inside circle +RLAPI bool CheckCollisionPointTriangle(Vector2 point, Vector2 p1, Vector2 p2, Vector2 p3); // Check if point is inside a triangle +RLAPI bool CheckCollisionPointLine(Vector2 point, Vector2 p1, Vector2 p2, int threshold); // Check if point belongs to line created between two points [p1] and [p2] with defined margin in pixels [threshold] +RLAPI bool CheckCollisionPointPoly(Vector2 point, const Vector2 *points, int pointCount); // Check if point is within a polygon described by array of vertices +RLAPI bool CheckCollisionLines(Vector2 startPos1, Vector2 endPos1, Vector2 startPos2, Vector2 endPos2, Vector2 *collisionPoint); // Check the collision between two lines defined by two points each, returns collision point by reference +RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2); // Get collision rectangle for two rectangles collision + +//------------------------------------------------------------------------------------ +// Texture Loading and Drawing Functions (Module: textures) +//------------------------------------------------------------------------------------ + +// Image loading functions +// NOTE: These functions do not require GPU access +RLAPI Image LoadImage(const char *fileName); // Load image from file into CPU memory (RAM) +RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize); // Load image from RAW file data +RLAPI Image LoadImageAnim(const char *fileName, int *frames); // Load image sequence from file (frames appended to image.data) +RLAPI Image LoadImageAnimFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int *frames); // Load image sequence from memory buffer +RLAPI Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load image from memory buffer, fileType refers to extension: i.e. '.png' +RLAPI Image LoadImageFromTexture(Texture2D texture); // Load image from GPU texture data +RLAPI Image LoadImageFromScreen(void); // Load image from screen buffer and (screenshot) +RLAPI bool IsImageValid(Image image); // Check if an image is valid (data and parameters) +RLAPI void UnloadImage(Image image); // Unload image from CPU memory (RAM) +RLAPI bool ExportImage(Image image, const char *fileName); // Export image data to file, returns true on success +RLAPI unsigned char *ExportImageToMemory(Image image, const char *fileType, int *fileSize); // Export image to memory buffer +RLAPI bool ExportImageAsCode(Image image, const char *fileName); // Export image as code file defining an array of bytes, returns true on success + +// Image generation functions +RLAPI Image GenImageColor(int width, int height, Color color); // Generate image: plain color +RLAPI Image GenImageGradientLinear(int width, int height, int direction, Color start, Color end); // Generate image: linear gradient, direction in degrees [0..360], 0=Vertical gradient +RLAPI Image GenImageGradientRadial(int width, int height, float density, Color inner, Color outer); // Generate image: radial gradient +RLAPI Image GenImageGradientSquare(int width, int height, float density, Color inner, Color outer); // Generate image: square gradient +RLAPI Image GenImageChecked(int width, int height, int checksX, int checksY, Color col1, Color col2); // Generate image: checked +RLAPI Image GenImageWhiteNoise(int width, int height, float factor); // Generate image: white noise +RLAPI Image GenImagePerlinNoise(int width, int height, int offsetX, int offsetY, float scale); // Generate image: perlin noise +RLAPI Image GenImageCellular(int width, int height, int tileSize); // Generate image: cellular algorithm, bigger tileSize means bigger cells +RLAPI Image GenImageText(int width, int height, const char *text); // Generate image: grayscale image from text data + +// Image manipulation functions +RLAPI Image ImageCopy(Image image); // Create an image duplicate (useful for transformations) +RLAPI Image ImageFromImage(Image image, Rectangle rec); // Create an image from another image piece +RLAPI Image ImageFromChannel(Image image, int selectedChannel); // Create an image from a selected channel of another image (GRAYSCALE) +RLAPI Image ImageText(const char *text, int fontSize, Color color); // Create an image from text (default font) +RLAPI Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Color tint); // Create an image from text (custom sprite font) +RLAPI void ImageFormat(Image *image, int newFormat); // Convert image data to desired format +RLAPI void ImageToPOT(Image *image, Color fill); // Convert image to POT (power-of-two) +RLAPI void ImageCrop(Image *image, Rectangle crop); // Crop an image to a defined rectangle +RLAPI void ImageAlphaCrop(Image *image, float threshold); // Crop image depending on alpha value +RLAPI void ImageAlphaClear(Image *image, Color color, float threshold); // Clear alpha channel to desired color +RLAPI void ImageAlphaMask(Image *image, Image alphaMask); // Apply alpha mask to image +RLAPI void ImageAlphaPremultiply(Image *image); // Premultiply alpha channel +RLAPI void ImageBlurGaussian(Image *image, int blurSize); // Apply Gaussian blur using a box blur approximation +RLAPI void ImageKernelConvolution(Image *image, const float *kernel, int kernelSize); // Apply custom square convolution kernel to image +RLAPI void ImageResize(Image *image, int newWidth, int newHeight); // Resize image (Bicubic scaling algorithm) +RLAPI void ImageResizeNN(Image *image, int newWidth, int newHeight); // Resize image (Nearest-Neighbor scaling algorithm) +RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color fill); // Resize canvas and fill with color +RLAPI void ImageMipmaps(Image *image); // Compute all mipmap levels for a provided image +RLAPI void ImageDither(Image *image, int rBpp, int gBpp, int bBpp, int aBpp); // Dither image data to 16bpp or lower (Floyd-Steinberg dithering) +RLAPI void ImageFlipVertical(Image *image); // Flip image vertically +RLAPI void ImageFlipHorizontal(Image *image); // Flip image horizontally +RLAPI void ImageRotate(Image *image, int degrees); // Rotate image by input angle in degrees (-359 to 359) +RLAPI void ImageRotateCW(Image *image); // Rotate image clockwise 90deg +RLAPI void ImageRotateCCW(Image *image); // Rotate image counter-clockwise 90deg +RLAPI void ImageColorTint(Image *image, Color color); // Modify image color: tint +RLAPI void ImageColorInvert(Image *image); // Modify image color: invert +RLAPI void ImageColorGrayscale(Image *image); // Modify image color: grayscale +RLAPI void ImageColorContrast(Image *image, float contrast); // Modify image color: contrast (-100 to 100) +RLAPI void ImageColorBrightness(Image *image, int brightness); // Modify image color: brightness (-255 to 255) +RLAPI void ImageColorReplace(Image *image, Color color, Color replace); // Modify image color: replace color +RLAPI Color *LoadImageColors(Image image); // Load color data from image as a Color array (RGBA - 32bit) +RLAPI Color *LoadImagePalette(Image image, int maxPaletteSize, int *colorCount); // Load colors palette from image as a Color array (RGBA - 32bit) +RLAPI void UnloadImageColors(Color *colors); // Unload color data loaded with LoadImageColors() +RLAPI void UnloadImagePalette(Color *colors); // Unload colors palette loaded with LoadImagePalette() +RLAPI Rectangle GetImageAlphaBorder(Image image, float threshold); // Get image alpha border rectangle +RLAPI Color GetImageColor(Image image, int x, int y); // Get image pixel color at (x, y) position + +// Image drawing functions +// NOTE: Image software-rendering functions (CPU) +RLAPI void ImageClearBackground(Image *dst, Color color); // Clear image background with given color +RLAPI void ImageDrawPixel(Image *dst, int posX, int posY, Color color); // Draw pixel within an image +RLAPI void ImageDrawPixelV(Image *dst, Vector2 position, Color color); // Draw pixel within an image (Vector version) +RLAPI void ImageDrawLine(Image *dst, int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw line within an image +RLAPI void ImageDrawLineV(Image *dst, Vector2 start, Vector2 end, Color color); // Draw line within an image (Vector version) +RLAPI void ImageDrawLineEx(Image *dst, Vector2 start, Vector2 end, int thick, Color color); // Draw a line defining thickness within an image +RLAPI void ImageDrawCircle(Image *dst, int centerX, int centerY, int radius, Color color); // Draw a filled circle within an image +RLAPI void ImageDrawCircleV(Image *dst, Vector2 center, int radius, Color color); // Draw a filled circle within an image (Vector version) +RLAPI void ImageDrawCircleLines(Image *dst, int centerX, int centerY, int radius, Color color); // Draw circle outline within an image +RLAPI void ImageDrawCircleLinesV(Image *dst, Vector2 center, int radius, Color color); // Draw circle outline within an image (Vector version) +RLAPI void ImageDrawRectangle(Image *dst, int posX, int posY, int width, int height, Color color); // Draw rectangle within an image +RLAPI void ImageDrawRectangleV(Image *dst, Vector2 position, Vector2 size, Color color); // Draw rectangle within an image (Vector version) +RLAPI void ImageDrawRectangleRec(Image *dst, Rectangle rec, Color color); // Draw rectangle within an image +RLAPI void ImageDrawRectangleLines(Image *dst, Rectangle rec, int thick, Color color); // Draw rectangle lines within an image +RLAPI void ImageDrawTriangle(Image *dst, Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw triangle within an image +RLAPI void ImageDrawTriangleEx(Image *dst, Vector2 v1, Vector2 v2, Vector2 v3, Color c1, Color c2, Color c3); // Draw triangle with interpolated colors within an image +RLAPI void ImageDrawTriangleLines(Image *dst, Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw triangle outline within an image +RLAPI void ImageDrawTriangleFan(Image *dst, const Vector2 *points, int pointCount, Color color); // Draw a triangle fan defined by points within an image (first vertex is the center) +RLAPI void ImageDrawTriangleStrip(Image *dst, const Vector2 *points, int pointCount, Color color); // Draw a triangle strip defined by points within an image +RLAPI void ImageDraw(Image *dst, Image src, Rectangle srcRec, Rectangle dstRec, Color tint); // Draw a source image within a destination image (tint applied to source) +RLAPI void ImageDrawText(Image *dst, const char *text, int posX, int posY, int fontSize, Color color); // Draw text (using default font) within an image (destination) +RLAPI void ImageDrawTextEx(Image *dst, Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text (custom sprite font) within an image (destination) + +// Texture loading functions +// NOTE: These functions require GPU access +RLAPI Texture2D LoadTexture(const char *fileName); // Load texture from file into GPU memory (VRAM) +RLAPI Texture2D LoadTextureFromImage(Image image); // Load texture from image data +RLAPI TextureCubemap LoadTextureCubemap(Image image, int layout); // Load cubemap from image, multiple image cubemap layouts supported +RLAPI RenderTexture2D LoadRenderTexture(int width, int height); // Load texture for rendering (framebuffer) +RLAPI bool IsTextureValid(Texture2D texture); // Check if a texture is valid (loaded in GPU) +RLAPI void UnloadTexture(Texture2D texture); // Unload texture from GPU memory (VRAM) +RLAPI bool IsRenderTextureValid(RenderTexture2D target); // Check if a render texture is valid (loaded in GPU) +RLAPI void UnloadRenderTexture(RenderTexture2D target); // Unload render texture from GPU memory (VRAM) +RLAPI void UpdateTexture(Texture2D texture, const void *pixels); // Update GPU texture with new data (pixels should be able to fill texture) +RLAPI void UpdateTextureRec(Texture2D texture, Rectangle rec, const void *pixels); // Update GPU texture rectangle with new data (pixels and rec should fit in texture) + +// Texture configuration functions +RLAPI void GenTextureMipmaps(Texture2D *texture); // Generate GPU mipmaps for a texture +RLAPI void SetTextureFilter(Texture2D texture, int filter); // Set texture scaling filter mode +RLAPI void SetTextureWrap(Texture2D texture, int wrap); // Set texture wrapping mode + +// Texture drawing functions +RLAPI void DrawTexture(Texture2D texture, int posX, int posY, Color tint); // Draw a Texture2D +RLAPI void DrawTextureV(Texture2D texture, Vector2 position, Color tint); // Draw a Texture2D with position defined as Vector2 +RLAPI void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float scale, Color tint); // Draw a Texture2D with extended parameters +RLAPI void DrawTextureRec(Texture2D texture, Rectangle source, Vector2 position, Color tint); // Draw a part of a texture defined by a rectangle +RLAPI void DrawTexturePro(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draw a part of a texture defined by a rectangle with 'pro' parameters +RLAPI void DrawTextureNPatch(Texture2D texture, NPatchInfo nPatchInfo, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draws a texture (or part of it) that stretches or shrinks nicely + +// Color/pixel related functions +RLAPI bool ColorIsEqual(Color col1, Color col2); // Check if two colors are equal +RLAPI Color Fade(Color color, float alpha); // Get color with alpha applied, alpha goes from 0.0f to 1.0f +RLAPI int ColorToInt(Color color); // Get hexadecimal value for a Color (0xRRGGBBAA) +RLAPI Vector4 ColorNormalize(Color color); // Get Color normalized as float [0..1] +RLAPI Color ColorFromNormalized(Vector4 normalized); // Get Color from normalized values [0..1] +RLAPI Vector3 ColorToHSV(Color color); // Get HSV values for a Color, hue [0..360], saturation/value [0..1] +RLAPI Color ColorFromHSV(float hue, float saturation, float value); // Get a Color from HSV values, hue [0..360], saturation/value [0..1] +RLAPI Color ColorTint(Color color, Color tint); // Get color multiplied with another color +RLAPI Color ColorBrightness(Color color, float factor); // Get color with brightness correction, brightness factor goes from -1.0f to 1.0f +RLAPI Color ColorContrast(Color color, float contrast); // Get color with contrast correction, contrast values between -1.0f and 1.0f +RLAPI Color ColorAlpha(Color color, float alpha); // Get color with alpha applied, alpha goes from 0.0f to 1.0f +RLAPI Color ColorAlphaBlend(Color dst, Color src, Color tint); // Get src alpha-blended into dst color with tint +RLAPI Color ColorLerp(Color color1, Color color2, float factor); // Get color lerp interpolation between two colors, factor [0.0f..1.0f] +RLAPI Color GetColor(unsigned int hexValue); // Get Color structure from hexadecimal value +RLAPI Color GetPixelColor(void *srcPtr, int format); // Get Color from a source pixel pointer of certain format +RLAPI void SetPixelColor(void *dstPtr, Color color, int format); // Set color formatted into destination pixel pointer +RLAPI int GetPixelDataSize(int width, int height, int format); // Get pixel data size in bytes for certain format + +//------------------------------------------------------------------------------------ +// Font Loading and Text Drawing Functions (Module: text) +//------------------------------------------------------------------------------------ + +// Font loading/unloading functions +RLAPI Font GetFontDefault(void); // Get the default Font +RLAPI Font LoadFont(const char *fileName); // Load font from file into GPU memory (VRAM) +RLAPI Font LoadFontEx(const char *fileName, int fontSize, const int *codepoints, int codepointCount); // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set, font size is provided in pixels height +RLAPI Font LoadFontFromImage(Image image, Color key, int firstChar); // Load font from Image (XNA style) +RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, const int *codepoints, int codepointCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf' +RLAPI bool IsFontValid(Font font); // Check if a font is valid (font data loaded, WARNING: GPU texture not checked) +RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, const int *codepoints, int codepointCount, int type, int *glyphCount); // Load font data for further use +RLAPI Image GenImageFontAtlas(const GlyphInfo *glyphs, Rectangle **glyphRecs, int glyphCount, int fontSize, int padding, int packMethod); // Generate image font atlas using chars info +RLAPI void UnloadFontData(GlyphInfo *glyphs, int glyphCount); // Unload font chars info data (RAM) +RLAPI void UnloadFont(Font font); // Unload font from GPU memory (VRAM) +RLAPI bool ExportFontAsCode(Font font, const char *fileName); // Export font as code file, returns true on success + +// Text drawing functions +RLAPI void DrawFPS(int posX, int posY); // Draw current FPS +RLAPI void DrawText(const char *text, int posX, int posY, int fontSize, Color color); // Draw text (using default font) +RLAPI void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text using font and additional parameters +RLAPI void DrawTextPro(Font font, const char *text, Vector2 position, Vector2 origin, float rotation, float fontSize, float spacing, Color tint); // Draw text using Font and pro parameters (rotation) +RLAPI void DrawTextCodepoint(Font font, int codepoint, Vector2 position, float fontSize, Color tint); // Draw one character (codepoint) +RLAPI void DrawTextCodepoints(Font font, const int *codepoints, int codepointCount, Vector2 position, float fontSize, float spacing, Color tint); // Draw multiple character (codepoint) + +// Text font info functions +RLAPI void SetTextLineSpacing(int spacing); // Set vertical line spacing when drawing with line-breaks +RLAPI int MeasureText(const char *text, int fontSize); // Measure string width for default font +RLAPI Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing); // Measure string size for Font +RLAPI Vector2 MeasureTextCodepoints(Font font, const int *codepoints, int length, float fontSize, float spacing); // Measure string size for an existing array of codepoints for Font +RLAPI int GetGlyphIndex(Font font, int codepoint); // Get glyph index position in font for a codepoint (unicode character), fallback to '?' if not found +RLAPI GlyphInfo GetGlyphInfo(Font font, int codepoint); // Get glyph font info data for a codepoint (unicode character), fallback to '?' if not found +RLAPI Rectangle GetGlyphAtlasRec(Font font, int codepoint); // Get glyph rectangle in font atlas for a codepoint (unicode character), fallback to '?' if not found + +// Text codepoints management functions (unicode characters) +RLAPI char *LoadUTF8(const int *codepoints, int length); // Load UTF-8 text encoded from codepoints array +RLAPI void UnloadUTF8(char *text); // Unload UTF-8 text encoded from codepoints array +RLAPI int *LoadCodepoints(const char *text, int *count); // Load all codepoints from a UTF-8 text string, codepoints count returned by parameter +RLAPI void UnloadCodepoints(int *codepoints); // Unload codepoints data from memory +RLAPI int GetCodepointCount(const char *text); // Get total number of codepoints in a UTF-8 encoded string +RLAPI int GetCodepoint(const char *text, int *codepointSize); // Get next codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure +RLAPI int GetCodepointNext(const char *text, int *codepointSize); // Get next codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure +RLAPI int GetCodepointPrevious(const char *text, int *codepointSize); // Get previous codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure +RLAPI const char *CodepointToUTF8(int codepoint, int *utf8Size); // Encode one codepoint into UTF-8 byte array (array length returned as parameter) + +// Text strings management functions (no UTF-8 strings, only byte chars) +// WARNING 1: Most of these functions use internal static buffers[], it's recommended to store returned data on user-side for re-use +// WARNING 2: Some strings allocate memory internally for the returned strings, those strings must be free by user using MemFree() +RLAPI char **LoadTextLines(const char *text, int *count); // Load text as separate lines ('\n') +RLAPI void UnloadTextLines(char **text, int lineCount); // Unload text lines +RLAPI int TextCopy(char *dst, const char *src); // Copy one string to another, returns bytes copied +RLAPI bool TextIsEqual(const char *text1, const char *text2); // Check if two text string are equal +RLAPI unsigned int TextLength(const char *text); // Get text length, checks for '\0' ending +RLAPI const char *TextFormat(const char *text, ...); // Text formatting with variables (sprintf() style) +RLAPI const char *TextSubtext(const char *text, int position, int length); // Get a piece of a text string +RLAPI const char *TextRemoveSpaces(const char *text); // Remove text spaces, concat words +RLAPI char *GetTextBetween(const char *text, const char *begin, const char *end); // Get text between two strings +RLAPI char *TextReplace(const char *text, const char *search, const char *replacement); // Replace text string (WARNING: memory must be freed!) +RLAPI char *TextReplaceBetween(const char *text, const char *begin, const char *end, const char *replacement); // Replace text between two specific strings (WARNING: memory must be freed!) +RLAPI char *TextInsert(const char *text, const char *insert, int position); // Insert text in a position (WARNING: memory must be freed!) +RLAPI char *TextJoin(char **textList, int count, const char *delimiter); // Join text strings with delimiter +RLAPI char **TextSplit(const char *text, char delimiter, int *count); // Split text into multiple strings, using MAX_TEXTSPLIT_COUNT static strings +RLAPI void TextAppend(char *text, const char *append, int *position); // Append text at specific position and move cursor +RLAPI int TextFindIndex(const char *text, const char *search); // Find first text occurrence within a string, -1 if not found +RLAPI char *TextToUpper(const char *text); // Get upper case version of provided string +RLAPI char *TextToLower(const char *text); // Get lower case version of provided string +RLAPI char *TextToPascal(const char *text); // Get Pascal case notation version of provided string +RLAPI char *TextToSnake(const char *text); // Get Snake case notation version of provided string +RLAPI char *TextToCamel(const char *text); // Get Camel case notation version of provided string +RLAPI int TextToInteger(const char *text); // Get integer value from text +RLAPI float TextToFloat(const char *text); // Get float value from text + +//------------------------------------------------------------------------------------ +// Basic 3d Shapes Drawing Functions (Module: models) +//------------------------------------------------------------------------------------ + +// Basic geometric 3D shapes drawing functions +RLAPI void DrawLine3D(Vector3 startPos, Vector3 endPos, Color color); // Draw a line in 3D world space +RLAPI void DrawPoint3D(Vector3 position, Color color); // Draw a point in 3D space, actually a small line +RLAPI void DrawCircle3D(Vector3 center, float radius, Vector3 rotationAxis, float rotationAngle, Color color); // Draw a circle in 3D world space +RLAPI void DrawTriangle3D(Vector3 v1, Vector3 v2, Vector3 v3, Color color); // Draw a color-filled triangle (vertex in counter-clockwise order!) +RLAPI void DrawTriangleStrip3D(const Vector3 *points, int pointCount, Color color); // Draw a triangle strip defined by points +RLAPI void DrawCube(Vector3 position, float width, float height, float length, Color color); // Draw cube +RLAPI void DrawCubeV(Vector3 position, Vector3 size, Color color); // Draw cube (Vector version) +RLAPI void DrawCubeWires(Vector3 position, float width, float height, float length, Color color); // Draw cube wires +RLAPI void DrawCubeWiresV(Vector3 position, Vector3 size, Color color); // Draw cube wires (Vector version) +RLAPI void DrawSphere(Vector3 centerPos, float radius, Color color); // Draw sphere +RLAPI void DrawSphereEx(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere with extended parameters +RLAPI void DrawSphereWires(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere wires +RLAPI void DrawCylinder(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color); // Draw a cylinder/cone +RLAPI void DrawCylinderEx(Vector3 startPos, Vector3 endPos, float startRadius, float endRadius, int sides, Color color); // Draw a cylinder with base at startPos and top at endPos +RLAPI void DrawCylinderWires(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color); // Draw a cylinder/cone wires +RLAPI void DrawCylinderWiresEx(Vector3 startPos, Vector3 endPos, float startRadius, float endRadius, int sides, Color color); // Draw a cylinder wires with base at startPos and top at endPos +RLAPI void DrawCapsule(Vector3 startPos, Vector3 endPos, float radius, int slices, int rings, Color color); // Draw a capsule with the center of its sphere caps at startPos and endPos +RLAPI void DrawCapsuleWires(Vector3 startPos, Vector3 endPos, float radius, int slices, int rings, Color color); // Draw capsule wireframe with the center of its sphere caps at startPos and endPos +RLAPI void DrawPlane(Vector3 centerPos, Vector2 size, Color color); // Draw a plane XZ +RLAPI void DrawRay(Ray ray, Color color); // Draw a ray line +RLAPI void DrawGrid(int slices, float spacing); // Draw a grid (centered at (0, 0, 0)) + +//------------------------------------------------------------------------------------ +// Model 3d Loading and Drawing Functions (Module: models) +//------------------------------------------------------------------------------------ + +// Model management functions +RLAPI Model LoadModel(const char *fileName); // Load model from files (meshes and materials) +RLAPI Model LoadModelFromMesh(Mesh mesh); // Load model from generated mesh (default material) +RLAPI bool IsModelValid(Model model); // Check if a model is valid (loaded in GPU, VAO/VBOs) +RLAPI void UnloadModel(Model model); // Unload model (including meshes) from memory (RAM and/or VRAM) +RLAPI BoundingBox GetModelBoundingBox(Model model); // Compute model bounding box limits (considers all meshes) + +// Model drawing functions +RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint); // Draw a model (with texture if set) +RLAPI void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model with extended parameters +RLAPI void DrawModelWires(Model model, Vector3 position, float scale, Color tint); // Draw a model wires (with texture if set) +RLAPI void DrawModelWiresEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model wires (with texture if set) with extended parameters +RLAPI void DrawModelPoints(Model model, Vector3 position, float scale, Color tint); // Draw a model as points +RLAPI void DrawModelPointsEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model as points with extended parameters +RLAPI void DrawBoundingBox(BoundingBox box, Color color); // Draw bounding box (wires) +RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 position, float scale, Color tint); // Draw a billboard texture +RLAPI void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Color tint); // Draw a billboard texture defined by source +RLAPI void DrawBillboardPro(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector3 up, Vector2 size, Vector2 origin, float rotation, Color tint); // Draw a billboard texture defined by source and rotation + +// Mesh management functions +RLAPI void UploadMesh(Mesh *mesh, bool dynamic); // Upload mesh vertex data in GPU and provide VAO/VBO ids +RLAPI void UpdateMeshBuffer(Mesh mesh, int index, const void *data, int dataSize, int offset); // Update mesh vertex data in GPU for a specific buffer index +RLAPI void UnloadMesh(Mesh mesh); // Unload mesh data from CPU and GPU +RLAPI void DrawMesh(Mesh mesh, Material material, Matrix transform); // Draw a 3d mesh with material and transform +RLAPI void DrawMeshInstanced(Mesh mesh, Material material, const Matrix *transforms, int instances); // Draw multiple mesh instances with material and different transforms +RLAPI BoundingBox GetMeshBoundingBox(Mesh mesh); // Compute mesh bounding box limits +RLAPI void GenMeshTangents(Mesh *mesh); // Compute mesh tangents +RLAPI bool ExportMesh(Mesh mesh, const char *fileName); // Export mesh data to file, returns true on success +RLAPI bool ExportMeshAsCode(Mesh mesh, const char *fileName); // Export mesh as code file (.h) defining multiple arrays of vertex attributes + +// Mesh generation functions +RLAPI Mesh GenMeshPoly(int sides, float radius); // Generate polygonal mesh +RLAPI Mesh GenMeshPlane(float width, float length, int resX, int resZ); // Generate plane mesh (with subdivisions) +RLAPI Mesh GenMeshCube(float width, float height, float length); // Generate cuboid mesh +RLAPI Mesh GenMeshSphere(float radius, int rings, int slices); // Generate sphere mesh (standard sphere) +RLAPI Mesh GenMeshHemiSphere(float radius, int rings, int slices); // Generate half-sphere mesh (no bottom cap) +RLAPI Mesh GenMeshCylinder(float radius, float height, int slices); // Generate cylinder mesh +RLAPI Mesh GenMeshCone(float radius, float height, int slices); // Generate cone/pyramid mesh +RLAPI Mesh GenMeshTorus(float radius, float size, int radSeg, int sides); // Generate torus mesh +RLAPI Mesh GenMeshKnot(float radius, float size, int radSeg, int sides); // Generate trefoil knot mesh +RLAPI Mesh GenMeshHeightmap(Image heightmap, Vector3 size); // Generate heightmap mesh from image data +RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize); // Generate cubes-based map mesh from image data + +// Material loading/unloading functions +RLAPI Material *LoadMaterials(const char *fileName, int *materialCount); // Load materials from model file +RLAPI Material LoadMaterialDefault(void); // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps) +RLAPI bool IsMaterialValid(Material material); // Check if a material is valid (shader assigned, map textures loaded in GPU) +RLAPI void UnloadMaterial(Material material); // Unload material from GPU memory (VRAM) +RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture); // Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...) +RLAPI void SetModelMeshMaterial(Model *model, int meshId, int materialId); // Set material for a mesh + +// Model animations loading/unloading functions +RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, int *animCount); // Load model animations from file +RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, float frame); // Update model animation pose (vertex buffers and bone matrices) +RLAPI void UpdateModelAnimationEx(Model model, ModelAnimation animA, float frameA, ModelAnimation animB, float frameB, float blend); // Update model animation pose, blending two animations +RLAPI void UnloadModelAnimations(ModelAnimation *animations, int animCount); // Unload animation array data +RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim); // Check model animation skeleton match + +// Collision detection functions +RLAPI bool CheckCollisionSpheres(Vector3 center1, float radius1, Vector3 center2, float radius2); // Check collision between two spheres +RLAPI bool CheckCollisionBoxes(BoundingBox box1, BoundingBox box2); // Check collision between two bounding boxes +RLAPI bool CheckCollisionBoxSphere(BoundingBox box, Vector3 center, float radius); // Check collision between box and sphere +RLAPI RayCollision GetRayCollisionSphere(Ray ray, Vector3 center, float radius); // Get collision info between ray and sphere +RLAPI RayCollision GetRayCollisionBox(Ray ray, BoundingBox box); // Get collision info between ray and box +RLAPI RayCollision GetRayCollisionMesh(Ray ray, Mesh mesh, Matrix transform); // Get collision info between ray and mesh +RLAPI RayCollision GetRayCollisionTriangle(Ray ray, Vector3 p1, Vector3 p2, Vector3 p3); // Get collision info between ray and triangle +RLAPI RayCollision GetRayCollisionQuad(Ray ray, Vector3 p1, Vector3 p2, Vector3 p3, Vector3 p4); // Get collision info between ray and quad + +//------------------------------------------------------------------------------------ +// Audio Loading and Playing Functions (Module: audio) +//------------------------------------------------------------------------------------ +typedef void (*AudioCallback)(void *bufferData, unsigned int frames); + +// Audio device management functions +RLAPI void InitAudioDevice(void); // Initialize audio device and context +RLAPI void CloseAudioDevice(void); // Close the audio device and context +RLAPI bool IsAudioDeviceReady(void); // Check if audio device has been initialized successfully +RLAPI void SetMasterVolume(float volume); // Set master volume (listener) +RLAPI float GetMasterVolume(void); // Get master volume (listener) + +// Wave/Sound loading/unloading functions +RLAPI Wave LoadWave(const char *fileName); // Load wave data from file +RLAPI Wave LoadWaveFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load wave from memory buffer, fileType refers to extension: i.e. '.wav' +RLAPI bool IsWaveValid(Wave wave); // Checks if wave data is valid (data loaded and parameters) +RLAPI Sound LoadSound(const char *fileName); // Load sound from file +RLAPI Sound LoadSoundFromWave(Wave wave); // Load sound from wave data +RLAPI Sound LoadSoundAlias(Sound source); // Create a new sound that shares the same sample data as the source sound, does not own the sound data +RLAPI bool IsSoundValid(Sound sound); // Checks if a sound is valid (data loaded and buffers initialized) +RLAPI void UpdateSound(Sound sound, const void *data, int sampleCount); // Update sound buffer with new data (default data format: 32 bit float, stereo) +RLAPI void UnloadWave(Wave wave); // Unload wave data +RLAPI void UnloadSound(Sound sound); // Unload sound +RLAPI void UnloadSoundAlias(Sound alias); // Unload a sound alias (does not deallocate sample data) +RLAPI bool ExportWave(Wave wave, const char *fileName); // Export wave data to file, returns true on success +RLAPI bool ExportWaveAsCode(Wave wave, const char *fileName); // Export wave sample data to code (.h), returns true on success + +// Wave/Sound management functions +RLAPI void PlaySound(Sound sound); // Play a sound +RLAPI void StopSound(Sound sound); // Stop playing a sound +RLAPI void PauseSound(Sound sound); // Pause a sound +RLAPI void ResumeSound(Sound sound); // Resume a paused sound +RLAPI bool IsSoundPlaying(Sound sound); // Check if a sound is currently playing +RLAPI void SetSoundVolume(Sound sound, float volume); // Set volume for a sound (1.0 is max level) +RLAPI void SetSoundPitch(Sound sound, float pitch); // Set pitch for a sound (1.0 is base level) +RLAPI void SetSoundPan(Sound sound, float pan); // Set pan for a sound (-1.0 left, 0.0 center, 1.0 right) +RLAPI Wave WaveCopy(Wave wave); // Copy a wave to a new wave +RLAPI void WaveCrop(Wave *wave, int initFrame, int finalFrame); // Crop a wave to defined frames range +RLAPI void WaveFormat(Wave *wave, int sampleRate, int sampleSize, int channels); // Convert wave data to desired format +RLAPI float *LoadWaveSamples(Wave wave); // Load samples data from wave as a 32bit float data array +RLAPI void UnloadWaveSamples(float *samples); // Unload samples data loaded with LoadWaveSamples() + +// Music management functions +RLAPI Music LoadMusicStream(const char *fileName); // Load music stream from file +RLAPI Music LoadMusicStreamFromMemory(const char *fileType, const unsigned char *data, int dataSize); // Load music stream from data +RLAPI bool IsMusicValid(Music music); // Checks if a music stream is valid (context and buffers initialized) +RLAPI void UnloadMusicStream(Music music); // Unload music stream +RLAPI void PlayMusicStream(Music music); // Start music playing +RLAPI bool IsMusicStreamPlaying(Music music); // Check if music is playing +RLAPI void UpdateMusicStream(Music music); // Updates buffers for music streaming +RLAPI void StopMusicStream(Music music); // Stop music playing +RLAPI void PauseMusicStream(Music music); // Pause music playing +RLAPI void ResumeMusicStream(Music music); // Resume playing paused music +RLAPI void SeekMusicStream(Music music, float position); // Seek music to a position (in seconds) +RLAPI void SetMusicVolume(Music music, float volume); // Set volume for music (1.0 is max level) +RLAPI void SetMusicPitch(Music music, float pitch); // Set pitch for a music (1.0 is base level) +RLAPI void SetMusicPan(Music music, float pan); // Set pan for a music (-1.0 left, 0.0 center, 1.0 right) +RLAPI float GetMusicTimeLength(Music music); // Get music time length (in seconds) +RLAPI float GetMusicTimePlayed(Music music); // Get current music time played (in seconds) + +// AudioStream management functions +RLAPI AudioStream LoadAudioStream(unsigned int sampleRate, unsigned int sampleSize, unsigned int channels); // Load audio stream (to stream raw audio pcm data) +RLAPI bool IsAudioStreamValid(AudioStream stream); // Checks if an audio stream is valid (buffers initialized) +RLAPI void UnloadAudioStream(AudioStream stream); // Unload audio stream and free memory +RLAPI void UpdateAudioStream(AudioStream stream, const void *data, int frameCount); // Update audio stream buffers with data +RLAPI bool IsAudioStreamProcessed(AudioStream stream); // Check if any audio stream buffers requires refill +RLAPI void PlayAudioStream(AudioStream stream); // Play audio stream +RLAPI void PauseAudioStream(AudioStream stream); // Pause audio stream +RLAPI void ResumeAudioStream(AudioStream stream); // Resume audio stream +RLAPI bool IsAudioStreamPlaying(AudioStream stream); // Check if audio stream is playing +RLAPI void StopAudioStream(AudioStream stream); // Stop audio stream +RLAPI void SetAudioStreamVolume(AudioStream stream, float volume); // Set volume for audio stream (1.0 is max level) +RLAPI void SetAudioStreamPitch(AudioStream stream, float pitch); // Set pitch for audio stream (1.0 is base level) +RLAPI void SetAudioStreamPan(AudioStream stream, float pan); // Set pan for audio stream (-1.0 to 1.0 range, 0.0 is centered) +RLAPI void SetAudioStreamBufferSizeDefault(int size); // Default size for new audio streams +RLAPI void SetAudioStreamCallback(AudioStream stream, AudioCallback callback); // Audio thread callback to request new data + +RLAPI void AttachAudioStreamProcessor(AudioStream stream, AudioCallback processor); // Attach audio stream processor to stream, receives frames x 2 samples as 'float' (stereo) +RLAPI void DetachAudioStreamProcessor(AudioStream stream, AudioCallback processor); // Detach audio stream processor from stream + +RLAPI void AttachAudioMixedProcessor(AudioCallback processor); // Attach audio stream processor to the entire audio pipeline, receives frames x 2 samples as 'float' (stereo) +RLAPI void DetachAudioMixedProcessor(AudioCallback processor); // Detach audio stream processor from the entire audio pipeline + +#if defined(__cplusplus) +} +#endif + +#endif // RAYLIB_H diff --git a/SlLinux/include/raymath.h b/SlLinux/include/raymath.h new file mode 100644 index 0000000..8a0cce1 --- /dev/null +++ b/SlLinux/include/raymath.h @@ -0,0 +1,3134 @@ +/********************************************************************************************** +* +* raymath v2.0 - Math functions to work with Vector2, Vector3, Matrix and Quaternions +* +* CONVENTIONS: +* - Matrix structure is defined as row-major (memory layout) but parameters naming AND all +* math operations performed by the library consider the structure as it was column-major +* It is like transposed versions of the matrices are used for all the maths +* It benefits some functions making them cache-friendly and also avoids matrix +* transpositions sometimes required by OpenGL +* Example: In memory order, row0 is [m0 m4 m8 m12] but in semantic math row0 is [m0 m1 m2 m3] +* - Functions are always self-contained, no function use another raymath function inside, +* required code is directly re-implemented inside +* - Functions input parameters are always received by value (2 unavoidable exceptions) +* - Functions use always a "result" variable for return (except C++ operators) +* - Functions are always defined inline +* - Angles are always in radians (DEG2RAD/RAD2DEG macros provided for convenience) +* - No compound literals used to make sure libray is compatible with C++ +* +* CONFIGURATION: +* #define RAYMATH_IMPLEMENTATION +* Generates the implementation of the library into the included file +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation +* +* #define RAYMATH_STATIC_INLINE +* Define static inline functions code, so #include header suffices for use +* This may use up lots of memory +* +* #define RAYMATH_DISABLE_CPP_OPERATORS +* Disables C++ operator overloads for raymath types. +* +* #define RAYMATH_USE_SIMD_INTRINSICS 1 +* Try to enable SIMD intrinsics for MatrixMultiply() +* Note that users enabling it must be aware of the target platform where application will +* run to support the selected SIMD intrinsic, for now, only SSE is supported +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2015-2026 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RAYMATH_H +#define RAYMATH_H + +#if defined(RAYMATH_IMPLEMENTATION) && defined(RAYMATH_STATIC_INLINE) + #error "Specifying both RAYMATH_IMPLEMENTATION and RAYMATH_STATIC_INLINE is contradictory" +#endif + +// Function specifiers definition +#if defined(RAYMATH_IMPLEMENTATION) + #if defined(_WIN32) && defined(BUILD_LIBTYPE_SHARED) + #define RMAPI __declspec(dllexport) extern inline // Building raylib as a Win32 shared library (.dll) + #elif defined(BUILD_LIBTYPE_SHARED) + #define RMAPI __attribute__((visibility("default"))) // Building raylib as a Unix shared library (.so/.dylib) + #elif defined(_WIN32) && defined(USE_LIBTYPE_SHARED) + #define RMAPI __declspec(dllimport) // Using raylib as a Win32 shared library (.dll) + #else + #define RMAPI extern inline // Provide external definition + #endif +#elif defined(RAYMATH_STATIC_INLINE) + #define RMAPI static inline // Functions may be inlined, no external out-of-line definition +#else + #if defined(__TINYC__) + #define RMAPI static inline // plain inline not supported by tinycc (See issue #435) + #else + #define RMAPI inline // Functions may be inlined or external definition used + #endif +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef PI + #define PI 3.14159265358979323846f +#endif + +#ifndef EPSILON + #define EPSILON 0.000001f +#endif + +#ifndef DEG2RAD + #define DEG2RAD (PI/180.0f) +#endif + +#ifndef RAD2DEG + #define RAD2DEG (180.0f/PI) +#endif + +// Get float vector for Matrix +#ifndef MatrixToFloat + #define MatrixToFloat(mat) (MatrixToFloatV(mat).v) +#endif + +// Get float vector for Vector3 +#ifndef Vector3ToFloat + #define Vector3ToFloat(vec) (Vector3ToFloatV(vec).v) +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +#if !defined(RL_VECTOR2_TYPE) +// Vector2 type +typedef struct Vector2 { + float x; + float y; +} Vector2; +#define RL_VECTOR2_TYPE +#endif + +#if !defined(RL_VECTOR3_TYPE) +// Vector3 type +typedef struct Vector3 { + float x; + float y; + float z; +} Vector3; +#define RL_VECTOR3_TYPE +#endif + +#if !defined(RL_VECTOR4_TYPE) +// Vector4 type +typedef struct Vector4 { + float x; + float y; + float z; + float w; +} Vector4; +#define RL_VECTOR4_TYPE +#endif + +#if !defined(RL_QUATERNION_TYPE) +// Quaternion type +typedef Vector4 Quaternion; +#define RL_QUATERNION_TYPE +#endif + +#if !defined(RL_MATRIX_TYPE) +// Matrix type (OpenGL style 4x4 - right handed, column major) +typedef struct Matrix { + float m0, m4, m8, m12; // Matrix first row (4 components) + float m1, m5, m9, m13; // Matrix second row (4 components) + float m2, m6, m10, m14; // Matrix third row (4 components) + float m3, m7, m11, m15; // Matrix fourth row (4 components) +} Matrix; +#define RL_MATRIX_TYPE +#endif + +// NOTE: Helper types to be used instead of array return types for *ToFloat functions +#if !defined(RL_FLOAT3_TYPE) +typedef struct float3 { + float v[3]; +} float3; +#define RL_FLOAT3_TYPE +#endif + +#if !defined(RL_FLOAT16_TYPE) +typedef struct float16 { + float v[16]; +} float16; +#define RL_FLOAT16_TYPE +#endif + +#include // Required for: sinf(), cosf(), tan(), atan2f(), sqrtf(), floor(), fminf(), fmaxf(), fabsf() + +#if RAYMATH_USE_SIMD_INTRINSICS + // SIMD is used on the most costly raymath function MatrixMultiply() + // NOTE: Only SSE intrinsics support implemented + // TODO: Consider support for other SIMD instrinsics: + // - SSEx, AVX, AVX2, FMA, NEON, RVV + /* + #if defined(__SSE4_2__) + #include + #define RAYMATH_SSE42_ENABLED + #elif defined(__SSE4_1__) + #include + #define RAYMATH_SSE41_ENABLED + #elif defined(__SSSE3__) + #include + #define RAYMATH_SSSE3_ENABLED + #elif defined(__SSE3__) + #include + #define RAYMATH_SSE3_ENABLED + #elif defined(__SSE2__) || (defined(_M_AMD64) || defined(_M_X64)) // SSE2 x64 + #include + #define RAYMATH_SSE2_ENABLED + #endif + */ + #if defined(__SSE__) || defined(_M_X64) || (defined(_M_IX86_FP) && (_M_IX86_FP >= 1)) + #include + #define RAYMATH_SSE_ENABLED + #endif +#endif + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Utils math +//---------------------------------------------------------------------------------- + +// Clamp float value +RMAPI float Clamp(float value, float min, float max) +{ + float result = (value < min)? min : value; + + if (result > max) result = max; + + return result; +} + +// Calculate linear interpolation between two floats +RMAPI float Lerp(float start, float end, float amount) +{ + float result = start + amount*(end - start); + + return result; +} + +// Normalize input value within input range +RMAPI float Normalize(float value, float start, float end) +{ + float result = (value - start)/(end - start); + + return result; +} + +// Remap input value within input range to output range +RMAPI float Remap(float value, float inputStart, float inputEnd, float outputStart, float outputEnd) +{ + float result = (value - inputStart)/(inputEnd - inputStart)*(outputEnd - outputStart) + outputStart; + + return result; +} + +// Wrap input value from min to max +RMAPI float Wrap(float value, float min, float max) +{ + float result = value - (max - min)*floorf((value - min)/(max - min)); + + return result; +} + +// Check whether two given floats are almost equal +RMAPI int FloatEquals(float x, float y) +{ +#if !defined(EPSILON) + #define EPSILON 0.000001f +#endif + + int result = (fabsf(x - y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(x), fabsf(y)))); + + return result; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Vector2 math +//---------------------------------------------------------------------------------- + +// Vector with components value 0.0f +RMAPI Vector2 Vector2Zero(void) +{ + Vector2 result = { 0.0f, 0.0f }; + + return result; +} + +// Vector with components value 1.0f +RMAPI Vector2 Vector2One(void) +{ + Vector2 result = { 1.0f, 1.0f }; + + return result; +} + +// Add two vectors (v1 + v2) +RMAPI Vector2 Vector2Add(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x + v2.x, v1.y + v2.y }; + + return result; +} + +// Add vector and float value +RMAPI Vector2 Vector2AddValue(Vector2 v, float add) +{ + Vector2 result = { v.x + add, v.y + add }; + + return result; +} + +// Subtract two vectors (v1 - v2) +RMAPI Vector2 Vector2Subtract(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x - v2.x, v1.y - v2.y }; + + return result; +} + +// Subtract vector by float value +RMAPI Vector2 Vector2SubtractValue(Vector2 v, float sub) +{ + Vector2 result = { v.x - sub, v.y - sub }; + + return result; +} + +// Calculate vector length +RMAPI float Vector2Length(Vector2 v) +{ + float result = sqrtf((v.x*v.x) + (v.y*v.y)); + + return result; +} + +// Calculate vector square length +RMAPI float Vector2LengthSqr(Vector2 v) +{ + float result = (v.x*v.x) + (v.y*v.y); + + return result; +} + +// Calculate two vectors dot product +RMAPI float Vector2DotProduct(Vector2 v1, Vector2 v2) +{ + float result = (v1.x*v2.x + v1.y*v2.y); + + return result; +} + +// Calculate two vectors cross product +RMAPI float Vector2CrossProduct(Vector2 v1, Vector2 v2) +{ + float result = (v1.x*v2.y - v1.y*v2.x); + + return result; +} + +// Calculate distance between two vectors +RMAPI float Vector2Distance(Vector2 v1, Vector2 v2) +{ + float result = sqrtf((v1.x - v2.x)*(v1.x - v2.x) + (v1.y - v2.y)*(v1.y - v2.y)); + + return result; +} + +// Calculate square distance between two vectors +RMAPI float Vector2DistanceSqr(Vector2 v1, Vector2 v2) +{ + float result = ((v1.x - v2.x)*(v1.x - v2.x) + (v1.y - v2.y)*(v1.y - v2.y)); + + return result; +} + +// Calculate the signed angle from v1 to v2, relative to the origin (0, 0) +// NOTE: Coordinate system convention: positive X right, positive Y down +// positive angles appear clockwise, and negative angles appear counterclockwise +RMAPI float Vector2Angle(Vector2 v1, Vector2 v2) +{ + float result = 0.0f; + + float dot = v1.x*v2.x + v1.y*v2.y; + float det = v1.x*v2.y - v1.y*v2.x; + + result = atan2f(det, dot); + + return result; +} + +// Calculate angle defined by a two vectors line +// NOTE: Parameters need to be normalized +// Current implementation should be aligned with glm::angle +RMAPI float Vector2LineAngle(Vector2 start, Vector2 end) +{ + float result = 0.0f; + + // TODO(10/9/2023): Currently angles move clockwise, determine if this is wanted behavior + result = -atan2f(end.y - start.y, end.x - start.x); + + return result; +} + +// Scale vector (multiply by value) +RMAPI Vector2 Vector2Scale(Vector2 v, float scale) +{ + Vector2 result = { v.x*scale, v.y*scale }; + + return result; +} + +// Multiply vector by vector +RMAPI Vector2 Vector2Multiply(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x*v2.x, v1.y*v2.y }; + + return result; +} + +// Negate vector +RMAPI Vector2 Vector2Negate(Vector2 v) +{ + Vector2 result = { -v.x, -v.y }; + + return result; +} + +// Divide vector by vector +RMAPI Vector2 Vector2Divide(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x/v2.x, v1.y/v2.y }; + + return result; +} + +// Normalize provided vector +RMAPI Vector2 Vector2Normalize(Vector2 v) +{ + Vector2 result = { 0 }; + float length = sqrtf((v.x*v.x) + (v.y*v.y)); + + if (length > 0) + { + float ilength = 1.0f/length; + result.x = v.x*ilength; + result.y = v.y*ilength; + } + + return result; +} + +// Transforms a Vector2 by a given Matrix +RMAPI Vector2 Vector2Transform(Vector2 v, Matrix mat) +{ + Vector2 result = { 0 }; + + float x = v.x; + float y = v.y; + float z = 0; + + result.x = mat.m0*x + mat.m4*y + mat.m8*z + mat.m12; + result.y = mat.m1*x + mat.m5*y + mat.m9*z + mat.m13; + + return result; +} + +// Calculate linear interpolation between two vectors +RMAPI Vector2 Vector2Lerp(Vector2 v1, Vector2 v2, float amount) +{ + Vector2 result = { 0 }; + + result.x = v1.x + amount*(v2.x - v1.x); + result.y = v1.y + amount*(v2.y - v1.y); + + return result; +} + +// Calculate reflected vector to normal +RMAPI Vector2 Vector2Reflect(Vector2 v, Vector2 normal) +{ + Vector2 result = { 0 }; + + float dotProduct = (v.x*normal.x + v.y*normal.y); // Dot product + + result.x = v.x - (2.0f*normal.x)*dotProduct; + result.y = v.y - (2.0f*normal.y)*dotProduct; + + return result; +} + +// Get min value for each pair of components +RMAPI Vector2 Vector2Min(Vector2 v1, Vector2 v2) +{ + Vector2 result = { 0 }; + + result.x = fminf(v1.x, v2.x); + result.y = fminf(v1.y, v2.y); + + return result; +} + +// Get max value for each pair of components +RMAPI Vector2 Vector2Max(Vector2 v1, Vector2 v2) +{ + Vector2 result = { 0 }; + + result.x = fmaxf(v1.x, v2.x); + result.y = fmaxf(v1.y, v2.y); + + return result; +} + +// Rotate vector by angle +RMAPI Vector2 Vector2Rotate(Vector2 v, float angle) +{ + Vector2 result = { 0 }; + + float cosres = cosf(angle); + float sinres = sinf(angle); + + result.x = v.x*cosres - v.y*sinres; + result.y = v.x*sinres + v.y*cosres; + + return result; +} + +// Move Vector towards target +RMAPI Vector2 Vector2MoveTowards(Vector2 v, Vector2 target, float maxDistance) +{ + Vector2 result = { 0 }; + + float dx = target.x - v.x; + float dy = target.y - v.y; + float value = (dx*dx) + (dy*dy); + + if ((value == 0) || ((maxDistance >= 0) && (value <= maxDistance*maxDistance))) return target; + + float dist = sqrtf(value); + + result.x = v.x + dx/dist*maxDistance; + result.y = v.y + dy/dist*maxDistance; + + return result; +} + +// Invert the given vector +RMAPI Vector2 Vector2Invert(Vector2 v) +{ + Vector2 result = { 1.0f/v.x, 1.0f/v.y }; + + return result; +} + +// Clamp the components of the vector between +// min and max values specified by the given vectors +RMAPI Vector2 Vector2Clamp(Vector2 v, Vector2 min, Vector2 max) +{ + Vector2 result = { 0 }; + + result.x = fminf(max.x, fmaxf(min.x, v.x)); + result.y = fminf(max.y, fmaxf(min.y, v.y)); + + return result; +} + +// Clamp the magnitude of the vector between two min and max values +RMAPI Vector2 Vector2ClampValue(Vector2 v, float min, float max) +{ + Vector2 result = v; + + float length = (v.x*v.x) + (v.y*v.y); + if (length > 0.0f) + { + length = sqrtf(length); + + float scale = 1; // By default, 1 as the neutral element + if (length < min) scale = min/length; + else if (length > max) scale = max/length; + + result.x = v.x*scale; + result.y = v.y*scale; + } + + return result; +} + +// Check whether two given vectors are almost equal +RMAPI int Vector2Equals(Vector2 p, Vector2 q) +{ +#if !defined(EPSILON) + #define EPSILON 0.000001f +#endif + + int result = ((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) && + ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))); + + return result; +} + +// Compute the direction of a refracted ray +// v: normalized direction of the incoming ray +// n: normalized normal vector of the interface of two optical media +// r: ratio of the refractive index of the medium from where the ray comes +// to the refractive index of the medium on the other side of the surface +RMAPI Vector2 Vector2Refract(Vector2 v, Vector2 n, float r) +{ + Vector2 result = { 0 }; + + float dot = v.x*n.x + v.y*n.y; + float d = 1.0f - r*r*(1.0f - dot*dot); + + if (d >= 0.0f) + { + d = sqrtf(d); + v.x = r*v.x - (r*dot + d)*n.x; + v.y = r*v.y - (r*dot + d)*n.y; + + result = v; + } + + return result; +} + + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Vector3 math +//---------------------------------------------------------------------------------- + +// Vector with components value 0.0f +RMAPI Vector3 Vector3Zero(void) +{ + Vector3 result = { 0.0f, 0.0f, 0.0f }; + + return result; +} + +// Vector with components value 1.0f +RMAPI Vector3 Vector3One(void) +{ + Vector3 result = { 1.0f, 1.0f, 1.0f }; + + return result; +} + +// Add two vectors +RMAPI Vector3 Vector3Add(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x + v2.x, v1.y + v2.y, v1.z + v2.z }; + + return result; +} + +// Add vector and float value +RMAPI Vector3 Vector3AddValue(Vector3 v, float add) +{ + Vector3 result = { v.x + add, v.y + add, v.z + add }; + + return result; +} + +// Subtract two vectors +RMAPI Vector3 Vector3Subtract(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x - v2.x, v1.y - v2.y, v1.z - v2.z }; + + return result; +} + +// Subtract vector by float value +RMAPI Vector3 Vector3SubtractValue(Vector3 v, float sub) +{ + Vector3 result = { v.x - sub, v.y - sub, v.z - sub }; + + return result; +} + +// Multiply vector by scalar +RMAPI Vector3 Vector3Scale(Vector3 v, float scalar) +{ + Vector3 result = { v.x*scalar, v.y*scalar, v.z*scalar }; + + return result; +} + +// Multiply vector by vector +RMAPI Vector3 Vector3Multiply(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x*v2.x, v1.y*v2.y, v1.z*v2.z }; + + return result; +} + +// Calculate two vectors cross product +RMAPI Vector3 Vector3CrossProduct(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x }; + + return result; +} + +// Calculate one vector perpendicular vector +RMAPI Vector3 Vector3Perpendicular(Vector3 v) +{ + Vector3 result = { 0 }; + + float min = fabsf(v.x); + Vector3 cardinalAxis = {1.0f, 0.0f, 0.0f}; + + if (fabsf(v.y) < min) + { + min = fabsf(v.y); + Vector3 tmp = {0.0f, 1.0f, 0.0f}; + cardinalAxis = tmp; + } + + if (fabsf(v.z) < min) + { + Vector3 tmp = {0.0f, 0.0f, 1.0f}; + cardinalAxis = tmp; + } + + // Cross product between vectors + result.x = v.y*cardinalAxis.z - v.z*cardinalAxis.y; + result.y = v.z*cardinalAxis.x - v.x*cardinalAxis.z; + result.z = v.x*cardinalAxis.y - v.y*cardinalAxis.x; + + return result; +} + +// Calculate vector length +RMAPI float Vector3Length(const Vector3 v) +{ + float result = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + + return result; +} + +// Calculate vector square length +RMAPI float Vector3LengthSqr(const Vector3 v) +{ + float result = v.x*v.x + v.y*v.y + v.z*v.z; + + return result; +} + +// Calculate two vectors dot product +RMAPI float Vector3DotProduct(Vector3 v1, Vector3 v2) +{ + float result = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z); + + return result; +} + +// Calculate distance between two vectors +RMAPI float Vector3Distance(Vector3 v1, Vector3 v2) +{ + float result = 0.0f; + + float dx = v2.x - v1.x; + float dy = v2.y - v1.y; + float dz = v2.z - v1.z; + result = sqrtf(dx*dx + dy*dy + dz*dz); + + return result; +} + +// Calculate square distance between two vectors +RMAPI float Vector3DistanceSqr(Vector3 v1, Vector3 v2) +{ + float result = 0.0f; + + float dx = v2.x - v1.x; + float dy = v2.y - v1.y; + float dz = v2.z - v1.z; + result = dx*dx + dy*dy + dz*dz; + + return result; +} + +// Calculate angle between two vectors +RMAPI float Vector3Angle(Vector3 v1, Vector3 v2) +{ + float result = 0.0f; + + Vector3 cross = { v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x }; + float len = sqrtf(cross.x*cross.x + cross.y*cross.y + cross.z*cross.z); + float dot = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z); + result = atan2f(len, dot); + + return result; +} + +// Negate provided vector (invert direction) +RMAPI Vector3 Vector3Negate(Vector3 v) +{ + Vector3 result = { -v.x, -v.y, -v.z }; + + return result; +} + +// Divide vector by vector +RMAPI Vector3 Vector3Divide(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x/v2.x, v1.y/v2.y, v1.z/v2.z }; + + return result; +} + +// Normalize provided vector +RMAPI Vector3 Vector3Normalize(Vector3 v) +{ + Vector3 result = v; + + float length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length != 0.0f) + { + float ilength = 1.0f/length; + + result.x *= ilength; + result.y *= ilength; + result.z *= ilength; + } + + return result; +} + +//Calculate the projection of the vector v1 on to v2 +RMAPI Vector3 Vector3Project(Vector3 v1, Vector3 v2) +{ + Vector3 result = { 0 }; + + float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z); + float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z); + + float mag = v1dv2/v2dv2; + + result.x = v2.x*mag; + result.y = v2.y*mag; + result.z = v2.z*mag; + + return result; +} + +//Calculate the rejection of the vector v1 on to v2 +RMAPI Vector3 Vector3Reject(Vector3 v1, Vector3 v2) +{ + Vector3 result = { 0 }; + + float v1dv2 = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z); + float v2dv2 = (v2.x*v2.x + v2.y*v2.y + v2.z*v2.z); + + float mag = v1dv2/v2dv2; + + result.x = v1.x - (v2.x*mag); + result.y = v1.y - (v2.y*mag); + result.z = v1.z - (v2.z*mag); + + return result; +} + +// Orthonormalize provided vectors +// Makes vectors normalized and orthogonal to each other +// Gram-Schmidt function implementation +RMAPI void Vector3OrthoNormalize(Vector3 *v1, Vector3 *v2) +{ + float length = 0.0f; + float ilength = 0.0f; + + // Vector3Normalize(*v1); + Vector3 v = *v1; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + v1->x *= ilength; + v1->y *= ilength; + v1->z *= ilength; + + // Vector3CrossProduct(*v1, *v2) + Vector3 vn1 = { v1->y*v2->z - v1->z*v2->y, v1->z*v2->x - v1->x*v2->z, v1->x*v2->y - v1->y*v2->x }; + + // Vector3Normalize(vn1); + v = vn1; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + vn1.x *= ilength; + vn1.y *= ilength; + vn1.z *= ilength; + + // Vector3CrossProduct(vn1, *v1) + Vector3 vn2 = { vn1.y*v1->z - vn1.z*v1->y, vn1.z*v1->x - vn1.x*v1->z, vn1.x*v1->y - vn1.y*v1->x }; + + *v2 = vn2; +} + +// Transforms a Vector3 by a given Matrix +RMAPI Vector3 Vector3Transform(Vector3 v, Matrix mat) +{ + Vector3 result = { 0 }; + + float x = v.x; + float y = v.y; + float z = v.z; + + result.x = mat.m0*x + mat.m4*y + mat.m8*z + mat.m12; + result.y = mat.m1*x + mat.m5*y + mat.m9*z + mat.m13; + result.z = mat.m2*x + mat.m6*y + mat.m10*z + mat.m14; + + return result; +} + +// Transform a vector by quaternion rotation +RMAPI Vector3 Vector3RotateByQuaternion(Vector3 v, Quaternion q) +{ + Vector3 result = { 0 }; + + result.x = v.x*(q.x*q.x + q.w*q.w - q.y*q.y - q.z*q.z) + v.y*(2*q.x*q.y - 2*q.w*q.z) + v.z*(2*q.x*q.z + 2*q.w*q.y); + result.y = v.x*(2*q.w*q.z + 2*q.x*q.y) + v.y*(q.w*q.w - q.x*q.x + q.y*q.y - q.z*q.z) + v.z*(-2*q.w*q.x + 2*q.y*q.z); + result.z = v.x*(-2*q.w*q.y + 2*q.x*q.z) + v.y*(2*q.w*q.x + 2*q.y*q.z)+ v.z*(q.w*q.w - q.x*q.x - q.y*q.y + q.z*q.z); + + return result; +} + +// Rotates a vector around an axis +RMAPI Vector3 Vector3RotateByAxisAngle(Vector3 v, Vector3 axis, float angle) +{ + // Using Euler-Rodrigues Formula + // Ref.: https://en.wikipedia.org/w/index.php?title=Euler%E2%80%93Rodrigues_formula + + Vector3 result = v; + + // Vector3Normalize(axis); + float length = sqrtf(axis.x*axis.x + axis.y*axis.y + axis.z*axis.z); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + axis.x *= ilength; + axis.y *= ilength; + axis.z *= ilength; + + angle /= 2.0f; + float a = sinf(angle); + float b = axis.x*a; + float c = axis.y*a; + float d = axis.z*a; + a = cosf(angle); + Vector3 w = { b, c, d }; + + // Vector3CrossProduct(w, v) + Vector3 wv = { w.y*v.z - w.z*v.y, w.z*v.x - w.x*v.z, w.x*v.y - w.y*v.x }; + + // Vector3CrossProduct(w, wv) + Vector3 wwv = { w.y*wv.z - w.z*wv.y, w.z*wv.x - w.x*wv.z, w.x*wv.y - w.y*wv.x }; + + // Vector3Scale(wv, 2*a) + a *= 2; + wv.x *= a; + wv.y *= a; + wv.z *= a; + + // Vector3Scale(wwv, 2) + wwv.x *= 2; + wwv.y *= 2; + wwv.z *= 2; + + result.x += wv.x; + result.y += wv.y; + result.z += wv.z; + + result.x += wwv.x; + result.y += wwv.y; + result.z += wwv.z; + + return result; +} + +// Move Vector towards target +RMAPI Vector3 Vector3MoveTowards(Vector3 v, Vector3 target, float maxDistance) +{ + Vector3 result = { 0 }; + + float dx = target.x - v.x; + float dy = target.y - v.y; + float dz = target.z - v.z; + float value = (dx*dx) + (dy*dy) + (dz*dz); + + if ((value == 0) || ((maxDistance >= 0) && (value <= maxDistance*maxDistance))) return target; + + float dist = sqrtf(value); + + result.x = v.x + dx/dist*maxDistance; + result.y = v.y + dy/dist*maxDistance; + result.z = v.z + dz/dist*maxDistance; + + return result; +} + +// Calculate linear interpolation between two vectors +RMAPI Vector3 Vector3Lerp(Vector3 v1, Vector3 v2, float amount) +{ + Vector3 result = { 0 }; + + result.x = v1.x + amount*(v2.x - v1.x); + result.y = v1.y + amount*(v2.y - v1.y); + result.z = v1.z + amount*(v2.z - v1.z); + + return result; +} + +// Calculate cubic hermite interpolation between two vectors and their tangents +// as described in the GLTF 2.0 specification: https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#interpolation-cubic +RMAPI Vector3 Vector3CubicHermite(Vector3 v1, Vector3 tangent1, Vector3 v2, Vector3 tangent2, float amount) +{ + Vector3 result = { 0 }; + + float amountPow2 = amount*amount; + float amountPow3 = amount*amount*amount; + + result.x = (2*amountPow3 - 3*amountPow2 + 1)*v1.x + (amountPow3 - 2*amountPow2 + amount)*tangent1.x + (-2*amountPow3 + 3*amountPow2)*v2.x + (amountPow3 - amountPow2)*tangent2.x; + result.y = (2*amountPow3 - 3*amountPow2 + 1)*v1.y + (amountPow3 - 2*amountPow2 + amount)*tangent1.y + (-2*amountPow3 + 3*amountPow2)*v2.y + (amountPow3 - amountPow2)*tangent2.y; + result.z = (2*amountPow3 - 3*amountPow2 + 1)*v1.z + (amountPow3 - 2*amountPow2 + amount)*tangent1.z + (-2*amountPow3 + 3*amountPow2)*v2.z + (amountPow3 - amountPow2)*tangent2.z; + + return result; +} + +// Calculate reflected vector to normal +RMAPI Vector3 Vector3Reflect(Vector3 v, Vector3 normal) +{ + Vector3 result = { 0 }; + + // I is the original vector + // N is the normal of the incident plane + // R = I - (2*N*(DotProduct[I, N])) + + float dotProduct = (v.x*normal.x + v.y*normal.y + v.z*normal.z); + + result.x = v.x - (2.0f*normal.x)*dotProduct; + result.y = v.y - (2.0f*normal.y)*dotProduct; + result.z = v.z - (2.0f*normal.z)*dotProduct; + + return result; +} + +// Get min value for each pair of components +RMAPI Vector3 Vector3Min(Vector3 v1, Vector3 v2) +{ + Vector3 result = { 0 }; + + result.x = fminf(v1.x, v2.x); + result.y = fminf(v1.y, v2.y); + result.z = fminf(v1.z, v2.z); + + return result; +} + +// Get max value for each pair of components +RMAPI Vector3 Vector3Max(Vector3 v1, Vector3 v2) +{ + Vector3 result = { 0 }; + + result.x = fmaxf(v1.x, v2.x); + result.y = fmaxf(v1.y, v2.y); + result.z = fmaxf(v1.z, v2.z); + + return result; +} + +// Compute barycenter coordinates (u, v, w) for point p with respect to triangle (a, b, c) +// NOTE: Assumes P is on the plane of the triangle +RMAPI Vector3 Vector3Barycenter(Vector3 p, Vector3 a, Vector3 b, Vector3 c) +{ + Vector3 result = { 0 }; + + Vector3 v0 = { b.x - a.x, b.y - a.y, b.z - a.z }; // Vector3Subtract(b, a) + Vector3 v1 = { c.x - a.x, c.y - a.y, c.z - a.z }; // Vector3Subtract(c, a) + Vector3 v2 = { p.x - a.x, p.y - a.y, p.z - a.z }; // Vector3Subtract(p, a) + float d00 = (v0.x*v0.x + v0.y*v0.y + v0.z*v0.z); // Vector3DotProduct(v0, v0) + float d01 = (v0.x*v1.x + v0.y*v1.y + v0.z*v1.z); // Vector3DotProduct(v0, v1) + float d11 = (v1.x*v1.x + v1.y*v1.y + v1.z*v1.z); // Vector3DotProduct(v1, v1) + float d20 = (v2.x*v0.x + v2.y*v0.y + v2.z*v0.z); // Vector3DotProduct(v2, v0) + float d21 = (v2.x*v1.x + v2.y*v1.y + v2.z*v1.z); // Vector3DotProduct(v2, v1) + + float denom = d00*d11 - d01*d01; + + result.y = (d11*d20 - d01*d21)/denom; + result.z = (d00*d21 - d01*d20)/denom; + result.x = 1.0f - (result.z + result.y); + + return result; +} + +// Projects a Vector3 from screen space into object space +// NOTE: Self-contained function, no other raymath functions are called +RMAPI Vector3 Vector3Unproject(Vector3 source, Matrix projection, Matrix view) +{ + Vector3 result = { 0 }; + + // Calculate unprojected matrix (multiply view matrix by projection matrix) and invert it + Matrix matViewProj = { // MatrixMultiply(view, projection); + view.m0*projection.m0 + view.m1*projection.m4 + view.m2*projection.m8 + view.m3*projection.m12, + view.m0*projection.m1 + view.m1*projection.m5 + view.m2*projection.m9 + view.m3*projection.m13, + view.m0*projection.m2 + view.m1*projection.m6 + view.m2*projection.m10 + view.m3*projection.m14, + view.m0*projection.m3 + view.m1*projection.m7 + view.m2*projection.m11 + view.m3*projection.m15, + view.m4*projection.m0 + view.m5*projection.m4 + view.m6*projection.m8 + view.m7*projection.m12, + view.m4*projection.m1 + view.m5*projection.m5 + view.m6*projection.m9 + view.m7*projection.m13, + view.m4*projection.m2 + view.m5*projection.m6 + view.m6*projection.m10 + view.m7*projection.m14, + view.m4*projection.m3 + view.m5*projection.m7 + view.m6*projection.m11 + view.m7*projection.m15, + view.m8*projection.m0 + view.m9*projection.m4 + view.m10*projection.m8 + view.m11*projection.m12, + view.m8*projection.m1 + view.m9*projection.m5 + view.m10*projection.m9 + view.m11*projection.m13, + view.m8*projection.m2 + view.m9*projection.m6 + view.m10*projection.m10 + view.m11*projection.m14, + view.m8*projection.m3 + view.m9*projection.m7 + view.m10*projection.m11 + view.m11*projection.m15, + view.m12*projection.m0 + view.m13*projection.m4 + view.m14*projection.m8 + view.m15*projection.m12, + view.m12*projection.m1 + view.m13*projection.m5 + view.m14*projection.m9 + view.m15*projection.m13, + view.m12*projection.m2 + view.m13*projection.m6 + view.m14*projection.m10 + view.m15*projection.m14, + view.m12*projection.m3 + view.m13*projection.m7 + view.m14*projection.m11 + view.m15*projection.m15 }; + + // Calculate inverted matrix -> MatrixInvert(matViewProj); + // Cache the matrix values (speed optimization) + float a00 = matViewProj.m0, a01 = matViewProj.m1, a02 = matViewProj.m2, a03 = matViewProj.m3; + float a10 = matViewProj.m4, a11 = matViewProj.m5, a12 = matViewProj.m6, a13 = matViewProj.m7; + float a20 = matViewProj.m8, a21 = matViewProj.m9, a22 = matViewProj.m10, a23 = matViewProj.m11; + float a30 = matViewProj.m12, a31 = matViewProj.m13, a32 = matViewProj.m14, a33 = matViewProj.m15; + + float b00 = a00*a11 - a01*a10; + float b01 = a00*a12 - a02*a10; + float b02 = a00*a13 - a03*a10; + float b03 = a01*a12 - a02*a11; + float b04 = a01*a13 - a03*a11; + float b05 = a02*a13 - a03*a12; + float b06 = a20*a31 - a21*a30; + float b07 = a20*a32 - a22*a30; + float b08 = a20*a33 - a23*a30; + float b09 = a21*a32 - a22*a31; + float b10 = a21*a33 - a23*a31; + float b11 = a22*a33 - a23*a32; + + // Calculate the invert determinant (inlined to avoid double-caching) + float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06); + + Matrix matViewProjInv = { + (a11*b11 - a12*b10 + a13*b09)*invDet, + (-a01*b11 + a02*b10 - a03*b09)*invDet, + (a31*b05 - a32*b04 + a33*b03)*invDet, + (-a21*b05 + a22*b04 - a23*b03)*invDet, + (-a10*b11 + a12*b08 - a13*b07)*invDet, + (a00*b11 - a02*b08 + a03*b07)*invDet, + (-a30*b05 + a32*b02 - a33*b01)*invDet, + (a20*b05 - a22*b02 + a23*b01)*invDet, + (a10*b10 - a11*b08 + a13*b06)*invDet, + (-a00*b10 + a01*b08 - a03*b06)*invDet, + (a30*b04 - a31*b02 + a33*b00)*invDet, + (-a20*b04 + a21*b02 - a23*b00)*invDet, + (-a10*b09 + a11*b07 - a12*b06)*invDet, + (a00*b09 - a01*b07 + a02*b06)*invDet, + (-a30*b03 + a31*b01 - a32*b00)*invDet, + (a20*b03 - a21*b01 + a22*b00)*invDet }; + + // Create quaternion from source point + Quaternion quat = { source.x, source.y, source.z, 1.0f }; + + // Multiply quat point by unprojecte matrix + Quaternion qtransformed = { // QuaternionTransform(quat, matViewProjInv) + matViewProjInv.m0*quat.x + matViewProjInv.m4*quat.y + matViewProjInv.m8*quat.z + matViewProjInv.m12*quat.w, + matViewProjInv.m1*quat.x + matViewProjInv.m5*quat.y + matViewProjInv.m9*quat.z + matViewProjInv.m13*quat.w, + matViewProjInv.m2*quat.x + matViewProjInv.m6*quat.y + matViewProjInv.m10*quat.z + matViewProjInv.m14*quat.w, + matViewProjInv.m3*quat.x + matViewProjInv.m7*quat.y + matViewProjInv.m11*quat.z + matViewProjInv.m15*quat.w }; + + // Normalized world points in vectors + result.x = qtransformed.x/qtransformed.w; + result.y = qtransformed.y/qtransformed.w; + result.z = qtransformed.z/qtransformed.w; + + return result; +} + +// Get Vector3 as float array +RMAPI float3 Vector3ToFloatV(Vector3 v) +{ + float3 buffer = { 0 }; + + buffer.v[0] = v.x; + buffer.v[1] = v.y; + buffer.v[2] = v.z; + + return buffer; +} + +// Invert the given vector +RMAPI Vector3 Vector3Invert(Vector3 v) +{ + Vector3 result = { 1.0f/v.x, 1.0f/v.y, 1.0f/v.z }; + + return result; +} + +// Clamp the components of the vector between +// min and max values specified by the given vectors +RMAPI Vector3 Vector3Clamp(Vector3 v, Vector3 min, Vector3 max) +{ + Vector3 result = { 0 }; + + result.x = fminf(max.x, fmaxf(min.x, v.x)); + result.y = fminf(max.y, fmaxf(min.y, v.y)); + result.z = fminf(max.z, fmaxf(min.z, v.z)); + + return result; +} + +// Clamp the magnitude of the vector between two values +RMAPI Vector3 Vector3ClampValue(Vector3 v, float min, float max) +{ + Vector3 result = v; + + float length = (v.x*v.x) + (v.y*v.y) + (v.z*v.z); + if (length > 0.0f) + { + length = sqrtf(length); + + float scale = 1; // By default, 1 as the neutral element + if (length < min) scale = min/length; + else if (length > max) scale = max/length; + + result.x = v.x*scale; + result.y = v.y*scale; + result.z = v.z*scale; + } + + return result; +} + +// Check whether two given vectors are almost equal +RMAPI int Vector3Equals(Vector3 p, Vector3 q) +{ +#if !defined(EPSILON) + #define EPSILON 0.000001f +#endif + + int result = ((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) && + ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) && + ((fabsf(p.z - q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z))))); + + return result; +} + +// Compute the direction of a refracted ray +// v: normalized direction of the incoming ray +// n: normalized normal vector of the interface of two optical media +// r: ratio of the refractive index of the medium from where the ray comes +// to the refractive index of the medium on the other side of the surface +RMAPI Vector3 Vector3Refract(Vector3 v, Vector3 n, float r) +{ + Vector3 result = { 0 }; + + float dot = v.x*n.x + v.y*n.y + v.z*n.z; + float d = 1.0f - r*r*(1.0f - dot*dot); + + if (d >= 0.0f) + { + d = sqrtf(d); + v.x = r*v.x - (r*dot + d)*n.x; + v.y = r*v.y - (r*dot + d)*n.y; + v.z = r*v.z - (r*dot + d)*n.z; + + result = v; + } + + return result; +} + + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Vector4 math +//---------------------------------------------------------------------------------- + +RMAPI Vector4 Vector4Zero(void) +{ + Vector4 result = { 0.0f, 0.0f, 0.0f, 0.0f }; + return result; +} + +RMAPI Vector4 Vector4One(void) +{ + Vector4 result = { 1.0f, 1.0f, 1.0f, 1.0f }; + return result; +} + +RMAPI Vector4 Vector4Add(Vector4 v1, Vector4 v2) +{ + Vector4 result = { + v1.x + v2.x, + v1.y + v2.y, + v1.z + v2.z, + v1.w + v2.w + }; + return result; +} + +RMAPI Vector4 Vector4AddValue(Vector4 v, float add) +{ + Vector4 result = { + v.x + add, + v.y + add, + v.z + add, + v.w + add + }; + return result; +} + +RMAPI Vector4 Vector4Subtract(Vector4 v1, Vector4 v2) +{ + Vector4 result = { + v1.x - v2.x, + v1.y - v2.y, + v1.z - v2.z, + v1.w - v2.w + }; + return result; +} + +RMAPI Vector4 Vector4SubtractValue(Vector4 v, float add) +{ + Vector4 result = { + v.x - add, + v.y - add, + v.z - add, + v.w - add + }; + return result; +} + +RMAPI float Vector4Length(Vector4 v) +{ + float result = sqrtf((v.x*v.x) + (v.y*v.y) + (v.z*v.z) + (v.w*v.w)); + return result; +} + +RMAPI float Vector4LengthSqr(Vector4 v) +{ + float result = (v.x*v.x) + (v.y*v.y) + (v.z*v.z) + (v.w*v.w); + return result; +} + +RMAPI float Vector4DotProduct(Vector4 v1, Vector4 v2) +{ + float result = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z + v1.w*v2.w); + return result; +} + +// Calculate distance between two vectors +RMAPI float Vector4Distance(Vector4 v1, Vector4 v2) +{ + float result = sqrtf( + (v1.x - v2.x)*(v1.x - v2.x) + (v1.y - v2.y)*(v1.y - v2.y) + + (v1.z - v2.z)*(v1.z - v2.z) + (v1.w - v2.w)*(v1.w - v2.w)); + return result; +} + +// Calculate square distance between two vectors +RMAPI float Vector4DistanceSqr(Vector4 v1, Vector4 v2) +{ + float result = + (v1.x - v2.x)*(v1.x - v2.x) + (v1.y - v2.y)*(v1.y - v2.y) + + (v1.z - v2.z)*(v1.z - v2.z) + (v1.w - v2.w)*(v1.w - v2.w); + + return result; +} + +RMAPI Vector4 Vector4Scale(Vector4 v, float scale) +{ + Vector4 result = { v.x*scale, v.y*scale, v.z*scale, v.w*scale }; + return result; +} + +// Multiply vector by vector +RMAPI Vector4 Vector4Multiply(Vector4 v1, Vector4 v2) +{ + Vector4 result = { v1.x*v2.x, v1.y*v2.y, v1.z*v2.z, v1.w*v2.w }; + return result; +} + +// Negate vector +RMAPI Vector4 Vector4Negate(Vector4 v) +{ + Vector4 result = { -v.x, -v.y, -v.z, -v.w }; + return result; +} + +// Divide vector by vector +RMAPI Vector4 Vector4Divide(Vector4 v1, Vector4 v2) +{ + Vector4 result = { v1.x/v2.x, v1.y/v2.y, v1.z/v2.z, v1.w/v2.w }; + return result; +} + +// Normalize provided vector +RMAPI Vector4 Vector4Normalize(Vector4 v) +{ + Vector4 result = { 0 }; + float length = sqrtf((v.x*v.x) + (v.y*v.y) + (v.z*v.z) + (v.w*v.w)); + + if (length > 0) + { + float ilength = 1.0f/length; + result.x = v.x*ilength; + result.y = v.y*ilength; + result.z = v.z*ilength; + result.w = v.w*ilength; + } + + return result; +} + +// Get min value for each pair of components +RMAPI Vector4 Vector4Min(Vector4 v1, Vector4 v2) +{ + Vector4 result = { 0 }; + + result.x = fminf(v1.x, v2.x); + result.y = fminf(v1.y, v2.y); + result.z = fminf(v1.z, v2.z); + result.w = fminf(v1.w, v2.w); + + return result; +} + +// Get max value for each pair of components +RMAPI Vector4 Vector4Max(Vector4 v1, Vector4 v2) +{ + Vector4 result = { 0 }; + + result.x = fmaxf(v1.x, v2.x); + result.y = fmaxf(v1.y, v2.y); + result.z = fmaxf(v1.z, v2.z); + result.w = fmaxf(v1.w, v2.w); + + return result; +} + +// Calculate linear interpolation between two vectors +RMAPI Vector4 Vector4Lerp(Vector4 v1, Vector4 v2, float amount) +{ + Vector4 result = { 0 }; + + result.x = v1.x + amount*(v2.x - v1.x); + result.y = v1.y + amount*(v2.y - v1.y); + result.z = v1.z + amount*(v2.z - v1.z); + result.w = v1.w + amount*(v2.w - v1.w); + + return result; +} + +// Move Vector towards target +RMAPI Vector4 Vector4MoveTowards(Vector4 v, Vector4 target, float maxDistance) +{ + Vector4 result = { 0 }; + + float dx = target.x - v.x; + float dy = target.y - v.y; + float dz = target.z - v.z; + float dw = target.w - v.w; + float value = (dx*dx) + (dy*dy) + (dz*dz) + (dw*dw); + + if ((value == 0) || ((maxDistance >= 0) && (value <= maxDistance*maxDistance))) return target; + + float dist = sqrtf(value); + + result.x = v.x + dx/dist*maxDistance; + result.y = v.y + dy/dist*maxDistance; + result.z = v.z + dz/dist*maxDistance; + result.w = v.w + dw/dist*maxDistance; + + return result; +} + +// Invert the given vector +RMAPI Vector4 Vector4Invert(Vector4 v) +{ + Vector4 result = { 1.0f/v.x, 1.0f/v.y, 1.0f/v.z, 1.0f/v.w }; + return result; +} + +// Check whether two given vectors are almost equal +RMAPI int Vector4Equals(Vector4 p, Vector4 q) +{ +#if !defined(EPSILON) + #define EPSILON 0.000001f +#endif + + int result = ((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) && + ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) && + ((fabsf(p.z - q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z))))) && + ((fabsf(p.w - q.w)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.w), fabsf(q.w))))); + return result; +} + + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Matrix math +//---------------------------------------------------------------------------------- + +// Compute matrix determinant +RMAPI float MatrixDeterminant(Matrix mat) +{ + float result = 0.0f; +/* + // Cache the matrix values (speed optimization) + float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3; + float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7; + float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11; + float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15; + + // NOTE: It takes 72 multiplication to calculate 4x4 matrix determinant + result = a30*a21*a12*a03 - a20*a31*a12*a03 - a30*a11*a22*a03 + a10*a31*a22*a03 + + a20*a11*a32*a03 - a10*a21*a32*a03 - a30*a21*a02*a13 + a20*a31*a02*a13 + + a30*a01*a22*a13 - a00*a31*a22*a13 - a20*a01*a32*a13 + a00*a21*a32*a13 + + a30*a11*a02*a23 - a10*a31*a02*a23 - a30*a01*a12*a23 + a00*a31*a12*a23 + + a10*a01*a32*a23 - a00*a11*a32*a23 - a20*a11*a02*a33 + a10*a21*a02*a33 + + a20*a01*a12*a33 - a00*a21*a12*a33 - a10*a01*a22*a33 + a00*a11*a22*a33; +*/ + // Using Laplace expansion (https://en.wikipedia.org/wiki/Laplace_expansion), + // previous operation can be simplified to 40 multiplications, decreasing matrix + // size from 4x4 to 2x2 using minors + + // Cache the matrix values (speed optimization) + float m0 = mat.m0, m1 = mat.m1, m2 = mat.m2, m3 = mat.m3; + float m4 = mat.m4, m5 = mat.m5, m6 = mat.m6, m7 = mat.m7; + float m8 = mat.m8, m9 = mat.m9, m10 = mat.m10, m11 = mat.m11; + float m12 = mat.m12, m13 = mat.m13, m14 = mat.m14, m15 = mat.m15; + + result = (m0*((m5*(m10*m15 - m11*m14) - m9*(m6*m15 - m7*m14) + m13*(m6*m11 - m7*m10))) - + m4*((m1*(m10*m15 - m11*m14) - m9*(m2*m15 - m3*m14) + m13*(m2*m11 - m3*m10))) + + m8*((m1*(m6*m15 - m7*m14) - m5*(m2*m15 - m3*m14) + m13*(m2*m7 - m3*m6))) - + m12*((m1*(m6*m11 - m7*m10) - m5*(m2*m11 - m3*m10) + m9*(m2*m7 - m3*m6)))); + + return result; +} + +// Get the trace of the matrix (sum of the values along the diagonal) +RMAPI float MatrixTrace(Matrix mat) +{ + float result = (mat.m0 + mat.m5 + mat.m10 + mat.m15); + + return result; +} + +// Transposes provided matrix +RMAPI Matrix MatrixTranspose(Matrix mat) +{ + Matrix result = { 0 }; + + result.m0 = mat.m0; + result.m1 = mat.m4; + result.m2 = mat.m8; + result.m3 = mat.m12; + result.m4 = mat.m1; + result.m5 = mat.m5; + result.m6 = mat.m9; + result.m7 = mat.m13; + result.m8 = mat.m2; + result.m9 = mat.m6; + result.m10 = mat.m10; + result.m11 = mat.m14; + result.m12 = mat.m3; + result.m13 = mat.m7; + result.m14 = mat.m11; + result.m15 = mat.m15; + + return result; +} + +// Invert provided matrix +RMAPI Matrix MatrixInvert(Matrix mat) +{ + Matrix result = { 0 }; + + // Cache the matrix values (speed optimization) + float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3; + float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7; + float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11; + float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15; + + float b00 = a00*a11 - a01*a10; + float b01 = a00*a12 - a02*a10; + float b02 = a00*a13 - a03*a10; + float b03 = a01*a12 - a02*a11; + float b04 = a01*a13 - a03*a11; + float b05 = a02*a13 - a03*a12; + float b06 = a20*a31 - a21*a30; + float b07 = a20*a32 - a22*a30; + float b08 = a20*a33 - a23*a30; + float b09 = a21*a32 - a22*a31; + float b10 = a21*a33 - a23*a31; + float b11 = a22*a33 - a23*a32; + + // Calculate the invert determinant (inlined to avoid double-caching) + float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06); + + result.m0 = (a11*b11 - a12*b10 + a13*b09)*invDet; + result.m1 = (-a01*b11 + a02*b10 - a03*b09)*invDet; + result.m2 = (a31*b05 - a32*b04 + a33*b03)*invDet; + result.m3 = (-a21*b05 + a22*b04 - a23*b03)*invDet; + result.m4 = (-a10*b11 + a12*b08 - a13*b07)*invDet; + result.m5 = (a00*b11 - a02*b08 + a03*b07)*invDet; + result.m6 = (-a30*b05 + a32*b02 - a33*b01)*invDet; + result.m7 = (a20*b05 - a22*b02 + a23*b01)*invDet; + result.m8 = (a10*b10 - a11*b08 + a13*b06)*invDet; + result.m9 = (-a00*b10 + a01*b08 - a03*b06)*invDet; + result.m10 = (a30*b04 - a31*b02 + a33*b00)*invDet; + result.m11 = (-a20*b04 + a21*b02 - a23*b00)*invDet; + result.m12 = (-a10*b09 + a11*b07 - a12*b06)*invDet; + result.m13 = (a00*b09 - a01*b07 + a02*b06)*invDet; + result.m14 = (-a30*b03 + a31*b01 - a32*b00)*invDet; + result.m15 = (a20*b03 - a21*b01 + a22*b00)*invDet; + + return result; +} + +// Get identity matrix +RMAPI Matrix MatrixIdentity(void) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Add two matrices +RMAPI Matrix MatrixAdd(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0 + right.m0; + result.m1 = left.m1 + right.m1; + result.m2 = left.m2 + right.m2; + result.m3 = left.m3 + right.m3; + result.m4 = left.m4 + right.m4; + result.m5 = left.m5 + right.m5; + result.m6 = left.m6 + right.m6; + result.m7 = left.m7 + right.m7; + result.m8 = left.m8 + right.m8; + result.m9 = left.m9 + right.m9; + result.m10 = left.m10 + right.m10; + result.m11 = left.m11 + right.m11; + result.m12 = left.m12 + right.m12; + result.m13 = left.m13 + right.m13; + result.m14 = left.m14 + right.m14; + result.m15 = left.m15 + right.m15; + + return result; +} + +// Subtract two matrices (left - right) +RMAPI Matrix MatrixSubtract(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0 - right.m0; + result.m1 = left.m1 - right.m1; + result.m2 = left.m2 - right.m2; + result.m3 = left.m3 - right.m3; + result.m4 = left.m4 - right.m4; + result.m5 = left.m5 - right.m5; + result.m6 = left.m6 - right.m6; + result.m7 = left.m7 - right.m7; + result.m8 = left.m8 - right.m8; + result.m9 = left.m9 - right.m9; + result.m10 = left.m10 - right.m10; + result.m11 = left.m11 - right.m11; + result.m12 = left.m12 - right.m12; + result.m13 = left.m13 - right.m13; + result.m14 = left.m14 - right.m14; + result.m15 = left.m15 - right.m15; + + return result; +} + +// Get two matrix multiplication +// NOTE: When multiplying matrices... the order matters! +RMAPI Matrix MatrixMultiply(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + +#if defined(RAYMATH_SSE_ENABLED) + // Load left side and right side + __m128 c0 = _mm_set_ps(right.m12, right.m8, right.m4, right.m0); + __m128 c1 = _mm_set_ps(right.m13, right.m9, right.m5, right.m1); + __m128 c2 = _mm_set_ps(right.m14, right.m10, right.m6, right.m2); + __m128 c3 = _mm_set_ps(right.m15, right.m11, right.m7, right.m3); + + // Transpose so c0..c3 become *rows* of the right matrix in semantic order + _MM_TRANSPOSE4_PS(c0, c1, c2, c3); + + float tmp[4] = { 0 }; + __m128 row; + + // Row 0 of result: [m0, m1, m2, m3] + row = _mm_mul_ps(_mm_set1_ps(left.m0), c0); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m1), c1)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m2), c2)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m3), c3)); + _mm_storeu_ps(tmp, row); + result.m0 = tmp[0]; + result.m1 = tmp[1]; + result.m2 = tmp[2]; + result.m3 = tmp[3]; + + // Row 1 of result: [m4, m5, m6, m7] + row = _mm_mul_ps(_mm_set1_ps(left.m4), c0); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m5), c1)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m6), c2)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m7), c3)); + _mm_storeu_ps(tmp, row); + result.m4 = tmp[0]; + result.m5 = tmp[1]; + result.m6 = tmp[2]; + result.m7 = tmp[3]; + + // Row 2 of result: [m8, m9, m10, m11] + row = _mm_mul_ps(_mm_set1_ps(left.m8), c0); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m9), c1)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m10), c2)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m11), c3)); + _mm_storeu_ps(tmp, row); + result.m8 = tmp[0]; + result.m9 = tmp[1]; + result.m10 = tmp[2]; + result.m11 = tmp[3]; + + // Row 3 of result: [m12, m13, m14, m15] + row = _mm_mul_ps(_mm_set1_ps(left.m12), c0); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m13), c1)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m14), c2)); + row = _mm_add_ps(row, _mm_mul_ps(_mm_set1_ps(left.m15), c3)); + _mm_storeu_ps(tmp, row); + result.m12 = tmp[0]; + result.m13 = tmp[1]; + result.m14 = tmp[2]; + result.m15 = tmp[3]; +#else + result.m0 = left.m0*right.m0 + left.m1*right.m4 + left.m2*right.m8 + left.m3*right.m12; + result.m1 = left.m0*right.m1 + left.m1*right.m5 + left.m2*right.m9 + left.m3*right.m13; + result.m2 = left.m0*right.m2 + left.m1*right.m6 + left.m2*right.m10 + left.m3*right.m14; + result.m3 = left.m0*right.m3 + left.m1*right.m7 + left.m2*right.m11 + left.m3*right.m15; + result.m4 = left.m4*right.m0 + left.m5*right.m4 + left.m6*right.m8 + left.m7*right.m12; + result.m5 = left.m4*right.m1 + left.m5*right.m5 + left.m6*right.m9 + left.m7*right.m13; + result.m6 = left.m4*right.m2 + left.m5*right.m6 + left.m6*right.m10 + left.m7*right.m14; + result.m7 = left.m4*right.m3 + left.m5*right.m7 + left.m6*right.m11 + left.m7*right.m15; + result.m8 = left.m8*right.m0 + left.m9*right.m4 + left.m10*right.m8 + left.m11*right.m12; + result.m9 = left.m8*right.m1 + left.m9*right.m5 + left.m10*right.m9 + left.m11*right.m13; + result.m10 = left.m8*right.m2 + left.m9*right.m6 + left.m10*right.m10 + left.m11*right.m14; + result.m11 = left.m8*right.m3 + left.m9*right.m7 + left.m10*right.m11 + left.m11*right.m15; + result.m12 = left.m12*right.m0 + left.m13*right.m4 + left.m14*right.m8 + left.m15*right.m12; + result.m13 = left.m12*right.m1 + left.m13*right.m5 + left.m14*right.m9 + left.m15*right.m13; + result.m14 = left.m12*right.m2 + left.m13*right.m6 + left.m14*right.m10 + left.m15*right.m14; + result.m15 = left.m12*right.m3 + left.m13*right.m7 + left.m14*right.m11 + left.m15*right.m15; +#endif + + return result; +} + +RMAPI Matrix MatrixMultiplyValue(Matrix left, float value) +{ + Matrix result = { + left.m0 * value, left.m4 * value, left.m8 * value, left.m12 * value, + left.m1 * value, left.m5 * value, left.m9 * value, left.m13 * value, + left.m2 * value, left.m6 * value, left.m10 * value, left.m14 * value, + left.m3 * value, left.m7 * value, left.m11 * value, left.m15 * value + }; + + return result; +} + +// Get translation matrix +RMAPI Matrix MatrixTranslate(float x, float y, float z) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, x, + 0.0f, 1.0f, 0.0f, y, + 0.0f, 0.0f, 1.0f, z, + 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Create rotation matrix from axis and angle +// NOTE: Angle should be provided in radians +RMAPI Matrix MatrixRotate(Vector3 axis, float angle) +{ + Matrix result = { 0 }; + + float x = axis.x, y = axis.y, z = axis.z; + + float lengthSquared = x*x + y*y + z*z; + + if ((lengthSquared != 1.0f) && (lengthSquared != 0.0f)) + { + float ilength = 1.0f/sqrtf(lengthSquared); + x *= ilength; + y *= ilength; + z *= ilength; + } + + float sinres = sinf(angle); + float cosres = cosf(angle); + float t = 1.0f - cosres; + + result.m0 = x*x*t + cosres; + result.m1 = y*x*t + z*sinres; + result.m2 = z*x*t - y*sinres; + result.m3 = 0.0f; + + result.m4 = x*y*t - z*sinres; + result.m5 = y*y*t + cosres; + result.m6 = z*y*t + x*sinres; + result.m7 = 0.0f; + + result.m8 = x*z*t + y*sinres; + result.m9 = y*z*t - x*sinres; + result.m10 = z*z*t + cosres; + result.m11 = 0.0f; + + result.m12 = 0.0f; + result.m13 = 0.0f; + result.m14 = 0.0f; + result.m15 = 1.0f; + + return result; +} + +// Get x-rotation matrix +// NOTE: Angle must be provided in radians +RMAPI Matrix MatrixRotateX(float angle) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosres = cosf(angle); + float sinres = sinf(angle); + + result.m5 = cosres; + result.m6 = sinres; + result.m9 = -sinres; + result.m10 = cosres; + + return result; +} + +// Get y-rotation matrix +// NOTE: Angle must be provided in radians +RMAPI Matrix MatrixRotateY(float angle) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosres = cosf(angle); + float sinres = sinf(angle); + + result.m0 = cosres; + result.m2 = -sinres; + result.m8 = sinres; + result.m10 = cosres; + + return result; +} + +// Get z-rotation matrix +// NOTE: Angle must be provided in radians +RMAPI Matrix MatrixRotateZ(float angle) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosres = cosf(angle); + float sinres = sinf(angle); + + result.m0 = cosres; + result.m1 = sinres; + result.m4 = -sinres; + result.m5 = cosres; + + return result; +} + + +// Get xyz-rotation matrix +// NOTE: Angle must be provided in radians +RMAPI Matrix MatrixRotateXYZ(Vector3 angle) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosz = cosf(-angle.z); + float sinz = sinf(-angle.z); + float cosy = cosf(-angle.y); + float siny = sinf(-angle.y); + float cosx = cosf(-angle.x); + float sinx = sinf(-angle.x); + + result.m0 = cosz*cosy; + result.m1 = (cosz*siny*sinx) - (sinz*cosx); + result.m2 = (cosz*siny*cosx) + (sinz*sinx); + + result.m4 = sinz*cosy; + result.m5 = (sinz*siny*sinx) + (cosz*cosx); + result.m6 = (sinz*siny*cosx) - (cosz*sinx); + + result.m8 = -siny; + result.m9 = cosy*sinx; + result.m10= cosy*cosx; + + return result; +} + +// Get zyx-rotation matrix +// NOTE: Angle must be provided in radians +RMAPI Matrix MatrixRotateZYX(Vector3 angle) +{ + Matrix result = { 0 }; + + float cz = cosf(angle.z); + float sz = sinf(angle.z); + float cy = cosf(angle.y); + float sy = sinf(angle.y); + float cx = cosf(angle.x); + float sx = sinf(angle.x); + + result.m0 = cz*cy; + result.m4 = cz*sy*sx - cx*sz; + result.m8 = sz*sx + cz*cx*sy; + result.m12 = 0; + + result.m1 = cy*sz; + result.m5 = cz*cx + sz*sy*sx; + result.m9 = cx*sz*sy - cz*sx; + result.m13 = 0; + + result.m2 = -sy; + result.m6 = cy*sx; + result.m10 = cy*cx; + result.m14 = 0; + + result.m3 = 0; + result.m7 = 0; + result.m11 = 0; + result.m15 = 1; + + return result; +} + +// Get scaling matrix +RMAPI Matrix MatrixScale(float x, float y, float z) +{ + Matrix result = { x, 0.0f, 0.0f, 0.0f, + 0.0f, y, 0.0f, 0.0f, + 0.0f, 0.0f, z, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Get perspective projection matrix +RMAPI Matrix MatrixFrustum(double left, double right, double bottom, double top, double nearPlane, double farPlane) +{ + Matrix result = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(farPlane - nearPlane); + + result.m0 = ((float)nearPlane*2.0f)/rl; + result.m1 = 0.0f; + result.m2 = 0.0f; + result.m3 = 0.0f; + + result.m4 = 0.0f; + result.m5 = ((float)nearPlane*2.0f)/tb; + result.m6 = 0.0f; + result.m7 = 0.0f; + + result.m8 = ((float)right + (float)left)/rl; + result.m9 = ((float)top + (float)bottom)/tb; + result.m10 = -((float)farPlane + (float)nearPlane)/fn; + result.m11 = -1.0f; + + result.m12 = 0.0f; + result.m13 = 0.0f; + result.m14 = -((float)farPlane*(float)nearPlane*2.0f)/fn; + result.m15 = 0.0f; + + return result; +} + +// Get perspective projection matrix +// NOTE: Fovy angle must be provided in radians +RMAPI Matrix MatrixPerspective(double fovY, double aspect, double nearPlane, double farPlane) +{ + Matrix result = { 0 }; + + double top = nearPlane*tan(fovY*0.5); + double bottom = -top; + double right = top*aspect; + double left = -right; + + // MatrixFrustum(-right, right, -top, top, near, far); + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(farPlane - nearPlane); + + result.m0 = ((float)nearPlane*2.0f)/rl; + result.m5 = ((float)nearPlane*2.0f)/tb; + result.m8 = ((float)right + (float)left)/rl; + result.m9 = ((float)top + (float)bottom)/tb; + result.m10 = -((float)farPlane + (float)nearPlane)/fn; + result.m11 = -1.0f; + result.m14 = -((float)farPlane*(float)nearPlane*2.0f)/fn; + + return result; +} + +// Get orthographic projection matrix +RMAPI Matrix MatrixOrtho(double left, double right, double bottom, double top, double nearPlane, double farPlane) +{ + Matrix result = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(farPlane - nearPlane); + + result.m0 = 2.0f/rl; + result.m1 = 0.0f; + result.m2 = 0.0f; + result.m3 = 0.0f; + result.m4 = 0.0f; + result.m5 = 2.0f/tb; + result.m6 = 0.0f; + result.m7 = 0.0f; + result.m8 = 0.0f; + result.m9 = 0.0f; + result.m10 = -2.0f/fn; + result.m11 = 0.0f; + result.m12 = -((float)left + (float)right)/rl; + result.m13 = -((float)top + (float)bottom)/tb; + result.m14 = -((float)farPlane + (float)nearPlane)/fn; + result.m15 = 1.0f; + + return result; +} + +// Get camera look-at matrix (view matrix) +RMAPI Matrix MatrixLookAt(Vector3 eye, Vector3 target, Vector3 up) +{ + Matrix result = { 0 }; + + float length = 0.0f; + float ilength = 0.0f; + + // Vector3Subtract(eye, target) + Vector3 vz = { eye.x - target.x, eye.y - target.y, eye.z - target.z }; + + // Vector3Normalize(vz) + Vector3 v = vz; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + vz.x *= ilength; + vz.y *= ilength; + vz.z *= ilength; + + // Vector3CrossProduct(up, vz) + Vector3 vx = { up.y*vz.z - up.z*vz.y, up.z*vz.x - up.x*vz.z, up.x*vz.y - up.y*vz.x }; + + // Vector3Normalize(x) + v = vx; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + vx.x *= ilength; + vx.y *= ilength; + vx.z *= ilength; + + // Vector3CrossProduct(vz, vx) + Vector3 vy = { vz.y*vx.z - vz.z*vx.y, vz.z*vx.x - vz.x*vx.z, vz.x*vx.y - vz.y*vx.x }; + + result.m0 = vx.x; + result.m1 = vy.x; + result.m2 = vz.x; + result.m3 = 0.0f; + result.m4 = vx.y; + result.m5 = vy.y; + result.m6 = vz.y; + result.m7 = 0.0f; + result.m8 = vx.z; + result.m9 = vy.z; + result.m10 = vz.z; + result.m11 = 0.0f; + result.m12 = -(vx.x*eye.x + vx.y*eye.y + vx.z*eye.z); // Vector3DotProduct(vx, eye) + result.m13 = -(vy.x*eye.x + vy.y*eye.y + vy.z*eye.z); // Vector3DotProduct(vy, eye) + result.m14 = -(vz.x*eye.x + vz.y*eye.y + vz.z*eye.z); // Vector3DotProduct(vz, eye) + result.m15 = 1.0f; + + return result; +} + +// Get float array of matrix data +RMAPI float16 MatrixToFloatV(Matrix mat) +{ + float16 result = { 0 }; + + result.v[0] = mat.m0; + result.v[1] = mat.m1; + result.v[2] = mat.m2; + result.v[3] = mat.m3; + result.v[4] = mat.m4; + result.v[5] = mat.m5; + result.v[6] = mat.m6; + result.v[7] = mat.m7; + result.v[8] = mat.m8; + result.v[9] = mat.m9; + result.v[10] = mat.m10; + result.v[11] = mat.m11; + result.v[12] = mat.m12; + result.v[13] = mat.m13; + result.v[14] = mat.m14; + result.v[15] = mat.m15; + + return result; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Quaternion math +//---------------------------------------------------------------------------------- + +// Add two quaternions +RMAPI Quaternion QuaternionAdd(Quaternion q1, Quaternion q2) +{ + Quaternion result = {q1.x + q2.x, q1.y + q2.y, q1.z + q2.z, q1.w + q2.w}; + + return result; +} + +// Add quaternion and float value +RMAPI Quaternion QuaternionAddValue(Quaternion q, float add) +{ + Quaternion result = {q.x + add, q.y + add, q.z + add, q.w + add}; + + return result; +} + +// Subtract two quaternions +RMAPI Quaternion QuaternionSubtract(Quaternion q1, Quaternion q2) +{ + Quaternion result = {q1.x - q2.x, q1.y - q2.y, q1.z - q2.z, q1.w - q2.w}; + + return result; +} + +// Subtract quaternion and float value +RMAPI Quaternion QuaternionSubtractValue(Quaternion q, float sub) +{ + Quaternion result = {q.x - sub, q.y - sub, q.z - sub, q.w - sub}; + + return result; +} + +// Get identity quaternion +RMAPI Quaternion QuaternionIdentity(void) +{ + Quaternion result = { 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Computes the length of a quaternion +RMAPI float QuaternionLength(Quaternion q) +{ + float result = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + + return result; +} + +// Normalize provided quaternion +RMAPI Quaternion QuaternionNormalize(Quaternion q) +{ + Quaternion result = { 0 }; + + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + + return result; +} + +// Invert provided quaternion +RMAPI Quaternion QuaternionInvert(Quaternion q) +{ + Quaternion result = q; + + float lengthSq = q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w; + + if (lengthSq != 0.0f) + { + float invLength = 1.0f/lengthSq; + + result.x *= -invLength; + result.y *= -invLength; + result.z *= -invLength; + result.w *= invLength; + } + + return result; +} + +// Calculate two quaternion multiplication +RMAPI Quaternion QuaternionMultiply(Quaternion q1, Quaternion q2) +{ + Quaternion result = { 0 }; + + float qax = q1.x, qay = q1.y, qaz = q1.z, qaw = q1.w; + float qbx = q2.x, qby = q2.y, qbz = q2.z, qbw = q2.w; + + result.x = qax*qbw + qaw*qbx + qay*qbz - qaz*qby; + result.y = qay*qbw + qaw*qby + qaz*qbx - qax*qbz; + result.z = qaz*qbw + qaw*qbz + qax*qby - qay*qbx; + result.w = qaw*qbw - qax*qbx - qay*qby - qaz*qbz; + + return result; +} + +// Scale quaternion by float value +RMAPI Quaternion QuaternionScale(Quaternion q, float mul) +{ + Quaternion result = { 0 }; + + result.x = q.x*mul; + result.y = q.y*mul; + result.z = q.z*mul; + result.w = q.w*mul; + + return result; +} + +// Divide two quaternions +RMAPI Quaternion QuaternionDivide(Quaternion q1, Quaternion q2) +{ + Quaternion result = { q1.x/q2.x, q1.y/q2.y, q1.z/q2.z, q1.w/q2.w }; + + return result; +} + +// Calculate linear interpolation between two quaternions +RMAPI Quaternion QuaternionLerp(Quaternion q1, Quaternion q2, float amount) +{ + Quaternion result = { 0 }; + + result.x = q1.x + amount*(q2.x - q1.x); + result.y = q1.y + amount*(q2.y - q1.y); + result.z = q1.z + amount*(q2.z - q1.z); + result.w = q1.w + amount*(q2.w - q1.w); + + return result; +} + +// Calculate slerp-optimized interpolation between two quaternions +RMAPI Quaternion QuaternionNlerp(Quaternion q1, Quaternion q2, float amount) +{ + Quaternion result = { 0 }; + + // QuaternionLerp(q1, q2, amount) + result.x = q1.x + amount*(q2.x - q1.x); + result.y = q1.y + amount*(q2.y - q1.y); + result.z = q1.z + amount*(q2.z - q1.z); + result.w = q1.w + amount*(q2.w - q1.w); + + // QuaternionNormalize(q); + Quaternion q = result; + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + + return result; +} + +// Calculates spherical linear interpolation between two quaternions +RMAPI Quaternion QuaternionSlerp(Quaternion q1, Quaternion q2, float amount) +{ + Quaternion result = { 0 }; + +#if !defined(EPSILON) + #define EPSILON 0.000001f +#endif + + float cosHalfTheta = q1.x*q2.x + q1.y*q2.y + q1.z*q2.z + q1.w*q2.w; + + if (cosHalfTheta < 0) + { + q2.x = -q2.x; q2.y = -q2.y; q2.z = -q2.z; q2.w = -q2.w; + cosHalfTheta = -cosHalfTheta; + } + + if (fabsf(cosHalfTheta) >= 1.0f) result = q1; + else if (cosHalfTheta > 0.95f) result = QuaternionNlerp(q1, q2, amount); + else + { + float halfTheta = acosf(cosHalfTheta); + float sinHalfTheta = sqrtf(1.0f - cosHalfTheta*cosHalfTheta); + + if (fabsf(sinHalfTheta) < EPSILON) + { + result.x = (q1.x*0.5f + q2.x*0.5f); + result.y = (q1.y*0.5f + q2.y*0.5f); + result.z = (q1.z*0.5f + q2.z*0.5f); + result.w = (q1.w*0.5f + q2.w*0.5f); + } + else + { + float ratioA = sinf((1 - amount)*halfTheta)/sinHalfTheta; + float ratioB = sinf(amount*halfTheta)/sinHalfTheta; + + result.x = (q1.x*ratioA + q2.x*ratioB); + result.y = (q1.y*ratioA + q2.y*ratioB); + result.z = (q1.z*ratioA + q2.z*ratioB); + result.w = (q1.w*ratioA + q2.w*ratioB); + } + } + + return result; +} + +// Calculate quaternion cubic spline interpolation using Cubic Hermite Spline algorithm +// as described in the GLTF 2.0 specification: https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#interpolation-cubic +RMAPI Quaternion QuaternionCubicHermiteSpline(Quaternion q1, Quaternion outTangent1, Quaternion q2, Quaternion inTangent2, float t) +{ + float t2 = t*t; + float t3 = t2*t; + float h00 = 2*t3 - 3*t2 + 1; + float h10 = t3 - 2*t2 + t; + float h01 = -2*t3 + 3*t2; + float h11 = t3 - t2; + + Quaternion p0 = QuaternionScale(q1, h00); + Quaternion m0 = QuaternionScale(outTangent1, h10); + Quaternion p1 = QuaternionScale(q2, h01); + Quaternion m1 = QuaternionScale(inTangent2, h11); + + Quaternion result = { 0 }; + + result = QuaternionAdd(p0, m0); + result = QuaternionAdd(result, p1); + result = QuaternionAdd(result, m1); + result = QuaternionNormalize(result); + + return result; +} + +// Calculate quaternion based on the rotation from one vector to another +RMAPI Quaternion QuaternionFromVector3ToVector3(Vector3 from, Vector3 to) +{ + Quaternion result = { 0 }; + + float cos2Theta = (from.x*to.x + from.y*to.y + from.z*to.z); // Vector3DotProduct(from, to) + Vector3 cross = { from.y*to.z - from.z*to.y, from.z*to.x - from.x*to.z, from.x*to.y - from.y*to.x }; // Vector3CrossProduct(from, to) + + result.x = cross.x; + result.y = cross.y; + result.z = cross.z; + result.w = sqrtf(cross.x*cross.x + cross.y*cross.y + cross.z*cross.z + cos2Theta*cos2Theta) + cos2Theta; + + // QuaternionNormalize(q); + // NOTE: Normalize to essentially nlerp the original and identity to 0.5 + Quaternion q = result; + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + + return result; +} + +// Get a quaternion for a given rotation matrix +RMAPI Quaternion QuaternionFromMatrix(Matrix mat) +{ + Quaternion result = { 0 }; + + float fourWSquaredMinus1 = mat.m0 + mat.m5 + mat.m10; + float fourXSquaredMinus1 = mat.m0 - mat.m5 - mat.m10; + float fourYSquaredMinus1 = mat.m5 - mat.m0 - mat.m10; + float fourZSquaredMinus1 = mat.m10 - mat.m0 - mat.m5; + + int biggestIndex = 0; + float fourBiggestSquaredMinus1 = fourWSquaredMinus1; + if (fourXSquaredMinus1 > fourBiggestSquaredMinus1) + { + fourBiggestSquaredMinus1 = fourXSquaredMinus1; + biggestIndex = 1; + } + + if (fourYSquaredMinus1 > fourBiggestSquaredMinus1) + { + fourBiggestSquaredMinus1 = fourYSquaredMinus1; + biggestIndex = 2; + } + + if (fourZSquaredMinus1 > fourBiggestSquaredMinus1) + { + fourBiggestSquaredMinus1 = fourZSquaredMinus1; + biggestIndex = 3; + } + + float biggestVal = sqrtf(fourBiggestSquaredMinus1 + 1.0f)*0.5f; + float mult = 0.25f/biggestVal; + + switch (biggestIndex) + { + case 0: + result.w = biggestVal; + result.x = (mat.m6 - mat.m9)*mult; + result.y = (mat.m8 - mat.m2)*mult; + result.z = (mat.m1 - mat.m4)*mult; + break; + case 1: + result.x = biggestVal; + result.w = (mat.m6 - mat.m9)*mult; + result.y = (mat.m1 + mat.m4)*mult; + result.z = (mat.m8 + mat.m2)*mult; + break; + case 2: + result.y = biggestVal; + result.w = (mat.m8 - mat.m2)*mult; + result.x = (mat.m1 + mat.m4)*mult; + result.z = (mat.m6 + mat.m9)*mult; + break; + case 3: + result.z = biggestVal; + result.w = (mat.m1 - mat.m4)*mult; + result.x = (mat.m8 + mat.m2)*mult; + result.y = (mat.m6 + mat.m9)*mult; + break; + } + + return result; +} + +// Get a matrix for a given quaternion +RMAPI Matrix QuaternionToMatrix(Quaternion q) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float a2 = q.x*q.x; + float b2 = q.y*q.y; + float c2 = q.z*q.z; + float ac = q.x*q.z; + float ab = q.x*q.y; + float bc = q.y*q.z; + float ad = q.w*q.x; + float bd = q.w*q.y; + float cd = q.w*q.z; + + result.m0 = 1 - 2*(b2 + c2); + result.m1 = 2*(ab + cd); + result.m2 = 2*(ac - bd); + + result.m4 = 2*(ab - cd); + result.m5 = 1 - 2*(a2 + c2); + result.m6 = 2*(bc + ad); + + result.m8 = 2*(ac + bd); + result.m9 = 2*(bc - ad); + result.m10 = 1 - 2*(a2 + b2); + + return result; +} + +// Get rotation quaternion for an angle and axis +// NOTE: Angle must be provided in radians +RMAPI Quaternion QuaternionFromAxisAngle(Vector3 axis, float angle) +{ + Quaternion result = { 0.0f, 0.0f, 0.0f, 1.0f }; + + float axisLength = sqrtf(axis.x*axis.x + axis.y*axis.y + axis.z*axis.z); + + if (axisLength != 0.0f) + { + angle *= 0.5f; + + float length = 0.0f; + float ilength = 0.0f; + + // Vector3Normalize(axis) + length = axisLength; + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + axis.x *= ilength; + axis.y *= ilength; + axis.z *= ilength; + + float sinres = sinf(angle); + float cosres = cosf(angle); + + result.x = axis.x*sinres; + result.y = axis.y*sinres; + result.z = axis.z*sinres; + result.w = cosres; + + // QuaternionNormalize(q); + Quaternion q = result; + length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + } + + return result; +} + +// Get the rotation angle and axis for a given quaternion +RMAPI void QuaternionToAxisAngle(Quaternion q, Vector3 *outAxis, float *outAngle) +{ + if (fabsf(q.w) > 1.0f) + { + // QuaternionNormalize(q); + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + q.x = q.x*ilength; + q.y = q.y*ilength; + q.z = q.z*ilength; + q.w = q.w*ilength; + } + + Vector3 resAxis = { 0.0f, 0.0f, 0.0f }; + float resAngle = 2.0f*acosf(q.w); + float den = sqrtf(1.0f - q.w*q.w); + + if (den > EPSILON) + { + resAxis.x = q.x/den; + resAxis.y = q.y/den; + resAxis.z = q.z/den; + } + else + { + // This occurs when the angle is zero + // Not a problem, set an arbitrary normalized axis + resAxis.x = 1.0f; + } + + *outAxis = resAxis; + *outAngle = resAngle; +} + +// Get the quaternion equivalent to Euler angles +// NOTE: Rotation order is ZYX +RMAPI Quaternion QuaternionFromEuler(float pitch, float yaw, float roll) +{ + Quaternion result = { 0 }; + + float x0 = cosf(pitch*0.5f); + float x1 = sinf(pitch*0.5f); + float y0 = cosf(yaw*0.5f); + float y1 = sinf(yaw*0.5f); + float z0 = cosf(roll*0.5f); + float z1 = sinf(roll*0.5f); + + result.x = x1*y0*z0 - x0*y1*z1; + result.y = x0*y1*z0 + x1*y0*z1; + result.z = x0*y0*z1 - x1*y1*z0; + result.w = x0*y0*z0 + x1*y1*z1; + + return result; +} + +// Get the Euler angles equivalent to quaternion (roll, pitch, yaw) +// NOTE: Angles are returned in a Vector3 struct in radians +RMAPI Vector3 QuaternionToEuler(Quaternion q) +{ + Vector3 result = { 0 }; + + // Roll (x-axis rotation) + float x0 = 2.0f*(q.w*q.x + q.y*q.z); + float x1 = 1.0f - 2.0f*(q.x*q.x + q.y*q.y); + result.x = atan2f(x0, x1); + + // Pitch (y-axis rotation) + float y0 = 2.0f*(q.w*q.y - q.z*q.x); + y0 = y0 > 1.0f ? 1.0f : y0; + y0 = y0 < -1.0f ? -1.0f : y0; + result.y = asinf(y0); + + // Yaw (z-axis rotation) + float z0 = 2.0f*(q.w*q.z + q.x*q.y); + float z1 = 1.0f - 2.0f*(q.y*q.y + q.z*q.z); + result.z = atan2f(z0, z1); + + return result; +} + +// Transform a quaternion given a transformation matrix +RMAPI Quaternion QuaternionTransform(Quaternion q, Matrix mat) +{ + Quaternion result = { 0 }; + + result.x = mat.m0*q.x + mat.m4*q.y + mat.m8*q.z + mat.m12*q.w; + result.y = mat.m1*q.x + mat.m5*q.y + mat.m9*q.z + mat.m13*q.w; + result.z = mat.m2*q.x + mat.m6*q.y + mat.m10*q.z + mat.m14*q.w; + result.w = mat.m3*q.x + mat.m7*q.y + mat.m11*q.z + mat.m15*q.w; + + return result; +} + +// Check whether two given quaternions are almost equal +RMAPI int QuaternionEquals(Quaternion p, Quaternion q) +{ +#if !defined(EPSILON) + #define EPSILON 0.000001f +#endif + + int result = (((fabsf(p.x - q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) && + ((fabsf(p.y - q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) && + ((fabsf(p.z - q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z))))) && + ((fabsf(p.w - q.w)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.w), fabsf(q.w)))))) || + (((fabsf(p.x + q.x)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.x), fabsf(q.x))))) && + ((fabsf(p.y + q.y)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.y), fabsf(q.y))))) && + ((fabsf(p.z + q.z)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.z), fabsf(q.z))))) && + ((fabsf(p.w + q.w)) <= (EPSILON*fmaxf(1.0f, fmaxf(fabsf(p.w), fabsf(q.w)))))); + + return result; +} + +// Compose a transformation matrix from rotational, translational and scaling components +// TODO: This function is not following raymath conventions defined in header: NOT self-contained +RMAPI Matrix MatrixCompose(Vector3 translation, Quaternion rotation, Vector3 scale) +{ + // Initialize vectors + Vector3 right = { 1.0f, 0.0f, 0.0f }; + Vector3 up = { 0.0f, 1.0f, 0.0f }; + Vector3 forward = { 0.0f, 0.0f, 1.0f }; + + // Scale vectors + right = Vector3Scale(right, scale.x); + up = Vector3Scale(up, scale.y); + forward = Vector3Scale(forward , scale.z); + + // Rotate vectors + right = Vector3RotateByQuaternion(right, rotation); + up = Vector3RotateByQuaternion(up, rotation); + forward = Vector3RotateByQuaternion(forward, rotation); + + // Set result matrix output + Matrix result = { + right.x, up.x, forward.x, translation.x, + right.y, up.y, forward.y, translation.y, + right.z, up.z, forward.z, translation.z, + 0.0f, 0.0f, 0.0f, 1.0f + }; + + return result; +} + +// Decompose a transformation matrix into its rotational, translational and scaling components and remove shear +// TODO: This function is not following raymath conventions defined in header: NOT self-contained +RMAPI void MatrixDecompose(Matrix mat, Vector3 *translation, Quaternion *rotation, Vector3 *scale) +{ + float eps = (float)1e-9; + + // Extract Translation + translation->x = mat.m12; + translation->y = mat.m13; + translation->z = mat.m14; + + // Matrix Columns - Rotation will be extracted into here + Vector3 matColumns[3] = {{ mat.m0, mat.m4, mat.m8 }, + { mat.m1, mat.m5, mat.m9 }, + { mat.m2, mat.m6, mat.m10 }}; + + // Shear Parameters XY, XZ, and YZ (extract and ignored) + float shear[3] = { 0 }; + + // Normalized Scale Parameters + Vector3 scl = { 0 }; + + // Max-Normalizing helps numerical stability + float stabilizer = eps; + for (int i = 0; i < 3; i++) + { + stabilizer = fmaxf(stabilizer, fabsf(matColumns[i].x)); + stabilizer = fmaxf(stabilizer, fabsf(matColumns[i].y)); + stabilizer = fmaxf(stabilizer, fabsf(matColumns[i].z)); + } + matColumns[0] = Vector3Scale(matColumns[0], 1.0f / stabilizer); + matColumns[1] = Vector3Scale(matColumns[1], 1.0f / stabilizer); + matColumns[2] = Vector3Scale(matColumns[2], 1.0f / stabilizer); + + // X Scale + scl.x = Vector3Length(matColumns[0]); + if (scl.x > eps) matColumns[0] = Vector3Scale(matColumns[0], 1.0f / scl.x); + + // Compute XY shear and make col2 orthogonal + shear[0] = Vector3DotProduct(matColumns[0], matColumns[1]); + matColumns[1] = Vector3Subtract(matColumns[1], Vector3Scale(matColumns[0], shear[0])); + + // Y Scale + scl.y = Vector3Length(matColumns[1]); + if (scl.y > eps) + { + matColumns[1] = Vector3Scale(matColumns[1], 1.0f / scl.y); + shear[0] /= scl.y; // Correct XY shear + } + + // Compute XZ and YZ shears and make col3 orthogonal + shear[1] = Vector3DotProduct(matColumns[0], matColumns[2]); + matColumns[2] = Vector3Subtract(matColumns[2], Vector3Scale(matColumns[0], shear[1])); + shear[2] = Vector3DotProduct(matColumns[1], matColumns[2]); + matColumns[2] = Vector3Subtract(matColumns[2], Vector3Scale(matColumns[1], shear[2])); + + // Z Scale + scl.z = Vector3Length(matColumns[2]); + if (scl.z > eps) + { + matColumns[2] = Vector3Scale(matColumns[2], 1.0f / scl.z); + shear[1] /= scl.z; // Correct XZ shear + shear[2] /= scl.z; // Correct YZ shear + } + + // matColumns are now orthonormal in O(3). Now ensure its in SO(3) by enforcing det = 1 + if (Vector3DotProduct(matColumns[0], Vector3CrossProduct(matColumns[1], matColumns[2])) < 0) + { + scl = Vector3Negate(scl); + matColumns[0] = Vector3Negate(matColumns[0]); + matColumns[1] = Vector3Negate(matColumns[1]); + matColumns[2] = Vector3Negate(matColumns[2]); + } + + // Set Scale + *scale = Vector3Scale(scl, stabilizer); + + // Extract Rotation + Matrix rotationMatrix = { matColumns[0].x, matColumns[0].y, matColumns[0].z, 0, + matColumns[1].x, matColumns[1].y, matColumns[1].z, 0, + matColumns[2].x, matColumns[2].y, matColumns[2].z, 0, + 0, 0, 0, 1 }; + *rotation = QuaternionFromMatrix(rotationMatrix); +} + +#if defined(__cplusplus) && !defined(RAYMATH_DISABLE_CPP_OPERATORS) + +// Optional C++ math operators +//------------------------------------------------------------------------------- + +// Vector2 operators +static constexpr Vector2 Vector2Zeros = { 0, 0 }; +static constexpr Vector2 Vector2Ones = { 1, 1 }; +static constexpr Vector2 Vector2UnitX = { 1, 0 }; +static constexpr Vector2 Vector2UnitY = { 0, 1 }; + +inline Vector2 operator + (const Vector2& lhs, const Vector2& rhs) +{ + return Vector2Add(lhs, rhs); +} + +inline const Vector2& operator += (Vector2& lhs, const Vector2& rhs) +{ + lhs = Vector2Add(lhs, rhs); + return lhs; +} + +inline Vector2 operator - (const Vector2& lhs, const Vector2& rhs) +{ + return Vector2Subtract(lhs, rhs); +} + +inline const Vector2& operator -= (Vector2& lhs, const Vector2& rhs) +{ + lhs = Vector2Subtract(lhs, rhs); + return lhs; +} + +inline Vector2 operator * (const Vector2& lhs, const float& rhs) +{ + return Vector2Scale(lhs, rhs); +} + +inline const Vector2& operator *= (Vector2& lhs, const float& rhs) +{ + lhs = Vector2Scale(lhs, rhs); + return lhs; +} + +inline Vector2 operator * (const Vector2& lhs, const Vector2& rhs) +{ + return Vector2Multiply(lhs, rhs); +} + +inline const Vector2& operator *= (Vector2& lhs, const Vector2& rhs) +{ + lhs = Vector2Multiply(lhs, rhs); + return lhs; +} + +inline Vector2 operator * (const Vector2& lhs, const Matrix& rhs) +{ + return Vector2Transform(lhs, rhs); +} + +inline const Vector2& operator *= (Vector2& lhs, const Matrix& rhs) +{ + lhs = Vector2Transform(lhs, rhs); + return lhs; +} + +inline Vector2 operator / (const Vector2& lhs, const float& rhs) +{ + return Vector2Scale(lhs, 1.0f/rhs); +} + +inline const Vector2& operator /= (Vector2& lhs, const float& rhs) +{ + lhs = Vector2Scale(lhs, 1.0f/rhs); + return lhs; +} + +inline Vector2 operator / (const Vector2& lhs, const Vector2& rhs) +{ + return Vector2Divide(lhs, rhs); +} + +inline const Vector2& operator /= (Vector2& lhs, const Vector2& rhs) +{ + lhs = Vector2Divide(lhs, rhs); + return lhs; +} + +inline bool operator == (const Vector2& lhs, const Vector2& rhs) +{ + return FloatEquals(lhs.x, rhs.x) && FloatEquals(lhs.y, rhs.y); +} + +inline bool operator != (const Vector2& lhs, const Vector2& rhs) +{ + return !FloatEquals(lhs.x, rhs.x) || !FloatEquals(lhs.y, rhs.y); +} + +// Vector3 operators +static constexpr Vector3 Vector3Zeros = { 0, 0, 0 }; +static constexpr Vector3 Vector3Ones = { 1, 1, 1 }; +static constexpr Vector3 Vector3UnitX = { 1, 0, 0 }; +static constexpr Vector3 Vector3UnitY = { 0, 1, 0 }; +static constexpr Vector3 Vector3UnitZ = { 0, 0, 1 }; + +inline Vector3 operator + (const Vector3& lhs, const Vector3& rhs) +{ + return Vector3Add(lhs, rhs); +} + +inline const Vector3& operator += (Vector3& lhs, const Vector3& rhs) +{ + lhs = Vector3Add(lhs, rhs); + return lhs; +} + +inline Vector3 operator - (const Vector3& lhs, const Vector3& rhs) +{ + return Vector3Subtract(lhs, rhs); +} + +inline const Vector3& operator -= (Vector3& lhs, const Vector3& rhs) +{ + lhs = Vector3Subtract(lhs, rhs); + return lhs; +} + +inline Vector3 operator * (const Vector3& lhs, const float& rhs) +{ + return Vector3Scale(lhs, rhs); +} + +inline const Vector3& operator *= (Vector3& lhs, const float& rhs) +{ + lhs = Vector3Scale(lhs, rhs); + return lhs; +} + +inline Vector3 operator * (const Vector3& lhs, const Vector3& rhs) +{ + return Vector3Multiply(lhs, rhs); +} + +inline const Vector3& operator *= (Vector3& lhs, const Vector3& rhs) +{ + lhs = Vector3Multiply(lhs, rhs); + return lhs; +} + +inline Vector3 operator * (const Vector3& lhs, const Matrix& rhs) +{ + return Vector3Transform(lhs, rhs); +} + +inline const Vector3& operator *= (Vector3& lhs, const Matrix& rhs) +{ + lhs = Vector3Transform(lhs, rhs); + return lhs; +} + +inline Vector3 operator / (const Vector3& lhs, const float& rhs) +{ + return Vector3Scale(lhs, 1.0f/rhs); +} + +inline const Vector3& operator /= (Vector3& lhs, const float& rhs) +{ + lhs = Vector3Scale(lhs, 1.0f/rhs); + return lhs; +} + +inline Vector3 operator / (const Vector3& lhs, const Vector3& rhs) +{ + return Vector3Divide(lhs, rhs); +} + +inline const Vector3& operator /= (Vector3& lhs, const Vector3& rhs) +{ + lhs = Vector3Divide(lhs, rhs); + return lhs; +} + +inline bool operator == (const Vector3& lhs, const Vector3& rhs) +{ + return FloatEquals(lhs.x, rhs.x) && FloatEquals(lhs.y, rhs.y) && FloatEquals(lhs.z, rhs.z); +} + +inline bool operator != (const Vector3& lhs, const Vector3& rhs) +{ + return !FloatEquals(lhs.x, rhs.x) || !FloatEquals(lhs.y, rhs.y) || !FloatEquals(lhs.z, rhs.z); +} + +// Vector4 operators +static constexpr Vector4 Vector4Zeros = { 0, 0, 0, 0 }; +static constexpr Vector4 Vector4Ones = { 1, 1, 1, 1 }; +static constexpr Vector4 Vector4UnitX = { 1, 0, 0, 0 }; +static constexpr Vector4 Vector4UnitY = { 0, 1, 0, 0 }; +static constexpr Vector4 Vector4UnitZ = { 0, 0, 1, 0 }; +static constexpr Vector4 Vector4UnitW = { 0, 0, 0, 1 }; + +inline Vector4 operator + (const Vector4& lhs, const Vector4& rhs) +{ + return Vector4Add(lhs, rhs); +} + +inline const Vector4& operator += (Vector4& lhs, const Vector4& rhs) +{ + lhs = Vector4Add(lhs, rhs); + return lhs; +} + +inline Vector4 operator - (const Vector4& lhs, const Vector4& rhs) +{ + return Vector4Subtract(lhs, rhs); +} + +inline const Vector4& operator -= (Vector4& lhs, const Vector4& rhs) +{ + lhs = Vector4Subtract(lhs, rhs); + return lhs; +} + +inline Vector4 operator * (const Vector4& lhs, const float& rhs) +{ + return Vector4Scale(lhs, rhs); +} + +inline const Vector4& operator *= (Vector4& lhs, const float& rhs) +{ + lhs = Vector4Scale(lhs, rhs); + return lhs; +} + +inline Vector4 operator * (const Vector4& lhs, const Vector4& rhs) +{ + return Vector4Multiply(lhs, rhs); +} + +inline const Vector4& operator *= (Vector4& lhs, const Vector4& rhs) +{ + lhs = Vector4Multiply(lhs, rhs); + return lhs; +} + +inline Vector4 operator / (const Vector4& lhs, const float& rhs) +{ + return Vector4Scale(lhs, 1.0f/rhs); +} + +inline const Vector4& operator /= (Vector4& lhs, const float& rhs) +{ + lhs = Vector4Scale(lhs, 1.0f/rhs); + return lhs; +} + +inline Vector4 operator / (const Vector4& lhs, const Vector4& rhs) +{ + return Vector4Divide(lhs, rhs); +} + +inline const Vector4& operator /= (Vector4& lhs, const Vector4& rhs) +{ + lhs = Vector4Divide(lhs, rhs); + return lhs; +} + +inline bool operator == (const Vector4& lhs, const Vector4& rhs) +{ + return FloatEquals(lhs.x, rhs.x) && FloatEquals(lhs.y, rhs.y) && FloatEquals(lhs.z, rhs.z) && FloatEquals(lhs.w, rhs.w); +} + +inline bool operator != (const Vector4& lhs, const Vector4& rhs) +{ + return !FloatEquals(lhs.x, rhs.x) || !FloatEquals(lhs.y, rhs.y) || !FloatEquals(lhs.z, rhs.z) || !FloatEquals(lhs.w, rhs.w); +} + +// Quaternion operators +static constexpr Quaternion QuaternionZeros = { 0, 0, 0, 0 }; +static constexpr Quaternion QuaternionOnes = { 1, 1, 1, 1 }; +static constexpr Quaternion QuaternionUnitX = { 0, 0, 0, 1 }; + +inline Quaternion operator + (const Quaternion& lhs, const float& rhs) +{ + return QuaternionAddValue(lhs, rhs); +} + +inline const Quaternion& operator += (Quaternion& lhs, const float& rhs) +{ + lhs = QuaternionAddValue(lhs, rhs); + return lhs; +} + +inline Quaternion operator - (const Quaternion& lhs, const float& rhs) +{ + return QuaternionSubtractValue(lhs, rhs); +} + +inline const Quaternion& operator -= (Quaternion& lhs, const float& rhs) +{ + lhs = QuaternionSubtractValue(lhs, rhs); + return lhs; +} + +inline Quaternion operator * (const Quaternion& lhs, const Matrix& rhs) +{ + return QuaternionTransform(lhs, rhs); +} + +inline const Quaternion& operator *= (Quaternion& lhs, const Matrix& rhs) +{ + lhs = QuaternionTransform(lhs, rhs); + return lhs; +} + +// Matrix operators +static constexpr Matrix MatrixUnit = { 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 }; + +inline Matrix operator + (const Matrix& lhs, const Matrix& rhs) +{ + return MatrixAdd(lhs, rhs); +} + +inline const Matrix& operator += (Matrix& lhs, const Matrix& rhs) +{ + lhs = MatrixAdd(lhs, rhs); + return lhs; +} + +inline Matrix operator - (const Matrix& lhs, const Matrix& rhs) +{ + return MatrixSubtract(lhs, rhs); +} + +inline const Matrix& operator -= (Matrix& lhs, const Matrix& rhs) +{ + lhs = MatrixSubtract(lhs, rhs); + return lhs; +} + +inline Matrix operator * (const Matrix& lhs, const Matrix& rhs) +{ + return MatrixMultiply(lhs, rhs); +} + +inline const Matrix& operator *= (Matrix& lhs, const Matrix& rhs) +{ + lhs = MatrixMultiply(lhs, rhs); + return lhs; +} + +inline Matrix operator * (const Matrix& lhs, const float value) +{ + return MatrixMultiplyValue(lhs, value); +} + +inline const Matrix& operator *= (Matrix& lhs, const float value) +{ + lhs = MatrixMultiplyValue(lhs, value); + return lhs; +} + +//------------------------------------------------------------------------------- +#endif // C++ operators + +#endif // RAYMATH_H diff --git a/SlLinux/include/rcamera.h b/SlLinux/include/rcamera.h new file mode 100644 index 0000000..14616a7 --- /dev/null +++ b/SlLinux/include/rcamera.h @@ -0,0 +1,562 @@ +/******************************************************************************************* +* +* rcamera - Basic camera system with support for multiple camera modes +* +* CONFIGURATION: +* #define RCAMERA_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define RCAMERA_STANDALONE +* If defined, the library can be used as standalone as a camera system but some +* functions must be redefined to manage inputs accordingly. +* +* CONTRIBUTORS: +* Ramon Santamaria: Supervision, review, update and maintenance +* Christoph Wagner: Complete redesign, using raymath (2022) +* Marc Palau: Initial implementation (2014) +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2022-2026 Christoph Wagner (@Crydsch) and Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RCAMERA_H +#define RCAMERA_H + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +// Function specifiers definition + +// Function specifiers in case library is build/used as a shared library (Windows) +// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll +#if defined(_WIN32) + #if defined(BUILD_LIBTYPE_SHARED) + #if defined(__TINYC__) + #define __declspec(x) __attribute__((x)) + #endif + #define RLAPI __declspec(dllexport) // Building the library as a Win32 shared library (.dll) + #elif defined(USE_LIBTYPE_SHARED) + #define RLAPI __declspec(dllimport) // Using the library as a Win32 shared library (.dll) + #endif +#endif + +#ifndef RLAPI + #define RLAPI // Functions defined as 'extern' by default (implicit specifiers) +#endif + +#if defined(RCAMERA_STANDALONE) + #define CAMERA_CULL_DISTANCE_NEAR 0.05 + #define CAMERA_CULL_DISTANCE_FAR 4000.0 +#else + #define CAMERA_CULL_DISTANCE_NEAR RL_CULL_DISTANCE_NEAR + #define CAMERA_CULL_DISTANCE_FAR RL_CULL_DISTANCE_FAR +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +// NOTE: Below types are required for standalone usage +//---------------------------------------------------------------------------------- +#if defined(RCAMERA_STANDALONE) + // Vector2, 2 components + typedef struct Vector2 { + float x; // Vector x component + float y; // Vector y component + } Vector2; + + // Vector3, 3 components + typedef struct Vector3 { + float x; // Vector x component + float y; // Vector y component + float z; // Vector z component + } Vector3; + + // Matrix, 4x4 components, column major, OpenGL style, right-handed + typedef struct Matrix { + float m0, m4, m8, m12; // Matrix first row (4 components) + float m1, m5, m9, m13; // Matrix second row (4 components) + float m2, m6, m10, m14; // Matrix third row (4 components) + float m3, m7, m11, m15; // Matrix fourth row (4 components) + } Matrix; + + // Camera type, defines a camera position/orientation in 3d space + typedef struct Camera3D { + Vector3 position; // Camera position + Vector3 target; // Camera target it looks-at + Vector3 up; // Camera up vector (rotation over its axis) + float fovy; // Camera field-of-view apperture in Y (degrees) in perspective, used as near plane width in orthographic + int projection; // Camera projection type: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC + } Camera3D; + + typedef Camera3D Camera; // Camera type fallback, defaults to Camera3D + + // Camera projection + typedef enum { + CAMERA_PERSPECTIVE = 0, // Perspective projection + CAMERA_ORTHOGRAPHIC // Orthographic projection + } CameraProjection; + + // Camera system modes + typedef enum { + CAMERA_CUSTOM = 0, // Camera custom, controlled by user (UpdateCamera() does nothing) + CAMERA_FREE, // Camera free mode + CAMERA_ORBITAL, // Camera orbital, around target, zoom supported + CAMERA_FIRST_PERSON, // Camera first person + CAMERA_THIRD_PERSON // Camera third person + } CameraMode; +#endif + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif + +RLAPI Vector3 GetCameraForward(Camera *camera); +RLAPI Vector3 GetCameraUp(Camera *camera); +RLAPI Vector3 GetCameraRight(Camera *camera); + +// Camera movement +RLAPI void CameraMoveForward(Camera *camera, float distance, bool moveInWorldPlane); +RLAPI void CameraMoveUp(Camera *camera, float distance); +RLAPI void CameraMoveRight(Camera *camera, float distance, bool moveInWorldPlane); +RLAPI void CameraMoveToTarget(Camera *camera, float delta); + +// Camera rotation +RLAPI void CameraYaw(Camera *camera, float angle, bool rotateAroundTarget); +RLAPI void CameraPitch(Camera *camera, float angle, bool lockView, bool rotateAroundTarget, bool rotateUp); +RLAPI void CameraRoll(Camera *camera, float angle); + +RLAPI Matrix GetCameraViewMatrix(Camera *camera); +RLAPI Matrix GetCameraProjectionMatrix(Camera *camera, float aspect); + +#if defined(__cplusplus) +} +#endif + +#endif // RCAMERA_H + +/*********************************************************************************** +* +* CAMERA IMPLEMENTATION +* +************************************************************************************/ + +#if defined(RCAMERA_IMPLEMENTATION) + +#include "raymath.h" // Required for vector maths: + // Vector3Add() + // Vector3Subtract() + // Vector3Scale() + // Vector3Normalize() + // Vector3Distance() + // Vector3CrossProduct() + // Vector3RotateByAxisAngle() + // Vector3Angle() + // Vector3Negate() + // MatrixLookAt() + // MatrixPerspective() + // MatrixOrtho() + // MatrixIdentity() + +// raylib required functionality: + // GetMouseDelta() + // GetMouseWheelMove() + // IsKeyDown() + // IsKeyPressed() + // GetFrameTime() + +#include // Required for: fabsf() + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#define CAMERA_MOVE_SPEED 5.4f // Units per second +#define CAMERA_ROTATION_SPEED 0.03f +#define CAMERA_PAN_SPEED 2.0f + +// Camera mouse movement sensitivity +#define CAMERA_MOUSE_MOVE_SENSITIVITY 0.003f + +// Camera orbital speed in CAMERA_ORBITAL mode +#define CAMERA_ORBITAL_SPEED 0.5f // Radians per second + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Module Internal Functions Declaration +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Module Functions Definition +//---------------------------------------------------------------------------------- +// Returns the cameras forward vector (normalized) +Vector3 GetCameraForward(Camera *camera) +{ + return Vector3Normalize(Vector3Subtract(camera->target, camera->position)); +} + +// Returns the cameras up vector (normalized) +// Note: The up vector might not be perpendicular to the forward vector +Vector3 GetCameraUp(Camera *camera) +{ + return Vector3Normalize(camera->up); +} + +// Returns the cameras right vector (normalized) +Vector3 GetCameraRight(Camera *camera) +{ + Vector3 forward = GetCameraForward(camera); + Vector3 up = GetCameraUp(camera); + + return Vector3Normalize(Vector3CrossProduct(forward, up)); +} + +// Moves the camera in its forward direction +void CameraMoveForward(Camera *camera, float distance, bool moveInWorldPlane) +{ + Vector3 forward = GetCameraForward(camera); + + if (moveInWorldPlane) + { + // Project vector onto world plane (the plane defined by the up vector) + if (fabsf(camera->up.z) > 0.7071f) forward.z = 0; + else if (fabsf(camera->up.x) > 0.7071f) forward.x = 0; + else forward.y = 0; + + forward = Vector3Normalize(forward); + } + + // Scale by distance + forward = Vector3Scale(forward, distance); + + // Move position and target + camera->position = Vector3Add(camera->position, forward); + camera->target = Vector3Add(camera->target, forward); +} + +// Moves the camera in its up direction +void CameraMoveUp(Camera *camera, float distance) +{ + Vector3 up = GetCameraUp(camera); + + // Scale by distance + up = Vector3Scale(up, distance); + + // Move position and target + camera->position = Vector3Add(camera->position, up); + camera->target = Vector3Add(camera->target, up); +} + +// Moves the camera target in its current right direction +void CameraMoveRight(Camera *camera, float distance, bool moveInWorldPlane) +{ + Vector3 right = GetCameraRight(camera); + + if (moveInWorldPlane) + { + // Project vector onto world plane (the plane defined by the up vector) + if (fabsf(camera->up.z) > 0.7071f) right.z = 0; + else if (fabsf(camera->up.x) > 0.7071f) right.x = 0; + else right.y = 0; + + right = Vector3Normalize(right); + } + + // Scale by distance + right = Vector3Scale(right, distance); + + // Move position and target + camera->position = Vector3Add(camera->position, right); + camera->target = Vector3Add(camera->target, right); +} + +// Moves the camera position closer/farther to/from the camera target +void CameraMoveToTarget(Camera *camera, float delta) +{ + float distance = Vector3Distance(camera->position, camera->target); + + // Apply delta + distance += delta; + + // Distance must be greater than 0 + if (distance <= 0) distance = 0.001f; + + // Set new distance by moving the position along the forward vector + Vector3 forward = GetCameraForward(camera); + camera->position = Vector3Add(camera->target, Vector3Scale(forward, -distance)); +} + +// Rotates the camera around its up vector +// Yaw is "looking left and right" +// If rotateAroundTarget is false, the camera rotates around its position +// Note: angle must be provided in radians +void CameraYaw(Camera *camera, float angle, bool rotateAroundTarget) +{ + // Rotation axis + Vector3 up = GetCameraUp(camera); + + // View vector + Vector3 targetPosition = Vector3Subtract(camera->target, camera->position); + + // Rotate view vector around up axis + targetPosition = Vector3RotateByAxisAngle(targetPosition, up, angle); + + if (rotateAroundTarget) + { + // Move position relative to target + camera->position = Vector3Subtract(camera->target, targetPosition); + } + else // rotate around camera.position + { + // Move target relative to position + camera->target = Vector3Add(camera->position, targetPosition); + } +} + +// Rotates the camera around its right vector, pitch is "looking up and down" +// - lockView prevents camera overrotation (aka "somersaults") +// - rotateAroundTarget defines if rotation is around target or around its position +// - rotateUp rotates the up direction as well (typically only usefull in CAMERA_FREE) +// NOTE: [angle] must be provided in radians +void CameraPitch(Camera *camera, float angle, bool lockView, bool rotateAroundTarget, bool rotateUp) +{ + // Up direction + Vector3 up = GetCameraUp(camera); + + // View vector + Vector3 targetPosition = Vector3Subtract(camera->target, camera->position); + + if (lockView) + { + // In these camera modes, clamp the Pitch angle + // to allow only viewing straight up or down + + // Clamp view up + float maxAngleUp = Vector3Angle(up, targetPosition); + maxAngleUp -= 0.001f; // avoid numerical errors + if (angle > maxAngleUp) angle = maxAngleUp; + + // Clamp view down + float maxAngleDown = Vector3Angle(Vector3Negate(up), targetPosition); + maxAngleDown *= -1.0f; // downwards angle is negative + maxAngleDown += 0.001f; // avoid numerical errors + if (angle < maxAngleDown) angle = maxAngleDown; + } + + // Rotation axis + Vector3 right = GetCameraRight(camera); + + // Rotate view vector around right axis + targetPosition = Vector3RotateByAxisAngle(targetPosition, right, angle); + + if (rotateAroundTarget) + { + // Move position relative to target + camera->position = Vector3Subtract(camera->target, targetPosition); + } + else // Rotate around camera.position + { + // Move target relative to position + camera->target = Vector3Add(camera->position, targetPosition); + } + + if (rotateUp) + { + // Rotate up direction around right axis + camera->up = Vector3RotateByAxisAngle(camera->up, right, angle); + } +} + +// Rotates the camera around its forward vector +// Roll is "turning your head sideways to the left or right" +// Note: angle must be provided in radians +void CameraRoll(Camera *camera, float angle) +{ + // Rotation axis + Vector3 forward = GetCameraForward(camera); + + // Rotate up direction around forward axis + camera->up = Vector3RotateByAxisAngle(camera->up, forward, angle); +} + +// Returns the camera view matrix +Matrix GetCameraViewMatrix(Camera *camera) +{ + return MatrixLookAt(camera->position, camera->target, camera->up); +} + +// Returns the camera projection matrix +Matrix GetCameraProjectionMatrix(Camera *camera, float aspect) +{ + if (camera->projection == CAMERA_PERSPECTIVE) + { + return MatrixPerspective(camera->fovy*DEG2RAD, aspect, CAMERA_CULL_DISTANCE_NEAR, CAMERA_CULL_DISTANCE_FAR); + } + else if (camera->projection == CAMERA_ORTHOGRAPHIC) + { + double top = camera->fovy/2.0; + double right = top*aspect; + + return MatrixOrtho(-right, right, -top, top, CAMERA_CULL_DISTANCE_NEAR, CAMERA_CULL_DISTANCE_FAR); + } + + return MatrixIdentity(); +} + +#if !defined(RCAMERA_STANDALONE) +// Update camera position for selected mode +// Camera mode: CAMERA_FREE, CAMERA_FIRST_PERSON, CAMERA_THIRD_PERSON, CAMERA_ORBITAL or CUSTOM +void UpdateCamera(Camera *camera, int mode) +{ + Vector2 mousePositionDelta = GetMouseDelta(); + + bool moveInWorldPlane = ((mode == CAMERA_FIRST_PERSON) || (mode == CAMERA_THIRD_PERSON)); + bool rotateAroundTarget = ((mode == CAMERA_THIRD_PERSON) || (mode == CAMERA_ORBITAL)); + bool lockView = ((mode == CAMERA_FREE) || (mode == CAMERA_FIRST_PERSON) || (mode == CAMERA_THIRD_PERSON) || (mode == CAMERA_ORBITAL)); + bool rotateUp = false; + + // Camera speeds based on frame time + float cameraMoveSpeed = CAMERA_MOVE_SPEED*GetFrameTime(); + float cameraRotationSpeed = CAMERA_ROTATION_SPEED*GetFrameTime(); + float cameraPanSpeed = CAMERA_PAN_SPEED*GetFrameTime(); + float cameraOrbitalSpeed = CAMERA_ORBITAL_SPEED*GetFrameTime(); + + if (mode == CAMERA_CUSTOM) {} + else if (mode == CAMERA_ORBITAL) + { + Matrix rotation = MatrixRotate(GetCameraUp(camera), cameraOrbitalSpeed); + Vector3 view = Vector3Subtract(camera->position, camera->target); + view = Vector3Transform(view, rotation); + camera->position = Vector3Add(camera->target, view); + } + else + { + // Camera rotation + if (IsKeyDown(KEY_DOWN)) CameraPitch(camera, -cameraRotationSpeed, lockView, rotateAroundTarget, rotateUp); + if (IsKeyDown(KEY_UP)) CameraPitch(camera, cameraRotationSpeed, lockView, rotateAroundTarget, rotateUp); + if (IsKeyDown(KEY_RIGHT)) CameraYaw(camera, -cameraRotationSpeed, rotateAroundTarget); + if (IsKeyDown(KEY_LEFT)) CameraYaw(camera, cameraRotationSpeed, rotateAroundTarget); + if (IsKeyDown(KEY_Q)) CameraRoll(camera, -cameraRotationSpeed); + if (IsKeyDown(KEY_E)) CameraRoll(camera, cameraRotationSpeed); + + // Camera movement + // Camera pan (for CAMERA_FREE) + if ((mode == CAMERA_FREE) && (IsMouseButtonDown(MOUSE_BUTTON_MIDDLE))) + { + const Vector2 mouseDelta = GetMouseDelta(); + if (mouseDelta.x > 0.0f) CameraMoveRight(camera, cameraPanSpeed, moveInWorldPlane); + if (mouseDelta.x < 0.0f) CameraMoveRight(camera, -cameraPanSpeed, moveInWorldPlane); + if (mouseDelta.y > 0.0f) CameraMoveUp(camera, -cameraPanSpeed); + if (mouseDelta.y < 0.0f) CameraMoveUp(camera, cameraPanSpeed); + } + else + { + // Mouse support + CameraYaw(camera, -mousePositionDelta.x*CAMERA_MOUSE_MOVE_SENSITIVITY, rotateAroundTarget); + CameraPitch(camera, -mousePositionDelta.y*CAMERA_MOUSE_MOVE_SENSITIVITY, lockView, rotateAroundTarget, rotateUp); + } + + // Keyboard support + if (IsKeyDown(KEY_W)) CameraMoveForward(camera, cameraMoveSpeed, moveInWorldPlane); + if (IsKeyDown(KEY_A)) CameraMoveRight(camera, -cameraMoveSpeed, moveInWorldPlane); + if (IsKeyDown(KEY_S)) CameraMoveForward(camera, -cameraMoveSpeed, moveInWorldPlane); + if (IsKeyDown(KEY_D)) CameraMoveRight(camera, cameraMoveSpeed, moveInWorldPlane); + + // Gamepad movement + if (IsGamepadAvailable(0)) + { + // Gamepad controller support + CameraYaw(camera, -(GetGamepadAxisMovement(0, GAMEPAD_AXIS_RIGHT_X)*2)*CAMERA_MOUSE_MOVE_SENSITIVITY, rotateAroundTarget); + CameraPitch(camera, -(GetGamepadAxisMovement(0, GAMEPAD_AXIS_RIGHT_Y)*2)*CAMERA_MOUSE_MOVE_SENSITIVITY, lockView, rotateAroundTarget, rotateUp); + + if (GetGamepadAxisMovement(0, GAMEPAD_AXIS_LEFT_Y) <= -0.25f) CameraMoveForward(camera, cameraMoveSpeed, moveInWorldPlane); + if (GetGamepadAxisMovement(0, GAMEPAD_AXIS_LEFT_X) <= -0.25f) CameraMoveRight(camera, -cameraMoveSpeed, moveInWorldPlane); + if (GetGamepadAxisMovement(0, GAMEPAD_AXIS_LEFT_Y) >= 0.25f) CameraMoveForward(camera, -cameraMoveSpeed, moveInWorldPlane); + if (GetGamepadAxisMovement(0, GAMEPAD_AXIS_LEFT_X) >= 0.25f) CameraMoveRight(camera, cameraMoveSpeed, moveInWorldPlane); + } + + if (mode == CAMERA_FREE) + { + if (IsKeyDown(KEY_SPACE)) CameraMoveUp(camera, cameraMoveSpeed); + if (IsKeyDown(KEY_LEFT_CONTROL)) CameraMoveUp(camera, -cameraMoveSpeed); + } + } + + if ((mode == CAMERA_THIRD_PERSON) || (mode == CAMERA_ORBITAL) || (mode == CAMERA_FREE)) + { + // Zoom target distance + CameraMoveToTarget(camera, -GetMouseWheelMove()); + if (IsKeyPressed(KEY_KP_SUBTRACT)) CameraMoveToTarget(camera, 2.0f); + if (IsKeyPressed(KEY_KP_ADD)) CameraMoveToTarget(camera, -2.0f); + } +} +#endif // !RCAMERA_STANDALONE + +// Update camera movement, movement/rotation values should be provided by user +void UpdateCameraPro(Camera *camera, Vector3 movement, Vector3 rotation, float zoom) +{ + // Required values + // movement.x - Move forward/backward + // movement.y - Move right/left + // movement.z - Move up/down + // rotation.x - yaw + // rotation.y - pitch + // rotation.z - roll + // zoom - Move towards target + + bool lockView = true; + bool rotateAroundTarget = false; + bool rotateUp = false; + bool moveInWorldPlane = true; + + // Camera rotation + CameraPitch(camera, -rotation.y*DEG2RAD, lockView, rotateAroundTarget, rotateUp); + CameraYaw(camera, -rotation.x*DEG2RAD, rotateAroundTarget); + CameraRoll(camera, rotation.z*DEG2RAD); + + // Camera movement + CameraMoveForward(camera, movement.x, moveInWorldPlane); + CameraMoveRight(camera, movement.y, moveInWorldPlane); + CameraMoveUp(camera, movement.z); + + // Zoom target distance + CameraMoveToTarget(camera, zoom); +} + +#endif // RCAMERA_IMPLEMENTATION diff --git a/SlLinux/include/rgestures.h b/SlLinux/include/rgestures.h new file mode 100644 index 0000000..e6cb863 --- /dev/null +++ b/SlLinux/include/rgestures.h @@ -0,0 +1,555 @@ +/********************************************************************************************** +* +* rgestures - Gestures system, gestures processing based on input events (touch/mouse) +* +* CONFIGURATION: +* #define RGESTURES_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define RGESTURES_STANDALONE +* If defined, the library can be used as standalone to process gesture events with +* no external dependencies. +* +* CONTRIBUTORS: +* Marc Palau: Initial implementation (2014) +* Albert Martos: Complete redesign and testing (2015) +* Ian Eito: Complete redesign and testing (2015) +* Ramon Santamaria: Supervision, review, update and maintenance +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2014-2026 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RGESTURES_H +#define RGESTURES_H + +#ifndef PI + #define PI 3.14159265358979323846 +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef MAX_TOUCH_POINTS + #define MAX_TOUCH_POINTS 8 // Maximum number of touch points supported +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +// NOTE: Below types are required for standalone usage +//---------------------------------------------------------------------------------- +// Boolean type +#if (defined(__STDC__) && __STDC_VERSION__ >= 199901L) || (defined(_MSC_VER) && _MSC_VER >= 1800) + #include +#elif !defined(__cplusplus) && !defined(bool) && !defined(RL_BOOL_TYPE) + typedef enum bool { false = 0, true = !false } bool; +#endif + +#if !defined(RL_VECTOR2_TYPE) +// Vector2 type +typedef struct Vector2 { + float x; + float y; +} Vector2; +#endif + +#if defined(RGESTURES_STANDALONE) +// Gestures type +// NOTE: It could be used as flags to enable only some gestures +typedef enum { + GESTURE_NONE = 0, + GESTURE_TAP = 1, + GESTURE_DOUBLETAP = 2, + GESTURE_HOLD = 4, + GESTURE_DRAG = 8, + GESTURE_SWIPE_RIGHT = 16, + GESTURE_SWIPE_LEFT = 32, + GESTURE_SWIPE_UP = 64, + GESTURE_SWIPE_DOWN = 128, + GESTURE_PINCH_IN = 256, + GESTURE_PINCH_OUT = 512 +} Gesture; +#endif + +typedef enum { + TOUCH_ACTION_UP = 0, + TOUCH_ACTION_DOWN, + TOUCH_ACTION_MOVE, + TOUCH_ACTION_CANCEL +} TouchAction; + +// Gesture event +typedef struct { + int touchAction; + int pointCount; + int pointId[MAX_TOUCH_POINTS]; + Vector2 position[MAX_TOUCH_POINTS]; +} GestureEvent; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif + +void ProcessGestureEvent(GestureEvent event); // Process gesture event and translate it into gestures +void UpdateGestures(void); // Update gestures detected (must be called every frame) + +#if defined(RGESTURES_STANDALONE) +void SetGesturesEnabled(unsigned int flags); // Enable a set of gestures using flags +bool IsGestureDetected(int gesture); // Check if a gesture have been detected +int GetGestureDetected(void); // Get latest detected gesture + +float GetGestureHoldDuration(void); // Get gesture hold time in seconds +Vector2 GetGestureDragVector(void); // Get gesture drag vector +float GetGestureDragAngle(void); // Get gesture drag angle +Vector2 GetGesturePinchVector(void); // Get gesture pinch delta +float GetGesturePinchAngle(void); // Get gesture pinch angle +#endif + +#if defined(__cplusplus) +} +#endif + +#endif // RGESTURES_H + +/*********************************************************************************** +* +* RGESTURES IMPLEMENTATION +* +************************************************************************************/ + +#if defined(RGESTURES_IMPLEMENTATION) + +#if defined(RGESTURES_STANDALONE) +#if defined(_WIN32) + #if defined(__cplusplus) + extern "C" { // Prevents name mangling of functions + #endif + // Functions required to query time on Windows + int __stdcall QueryPerformanceCounter(unsigned long long int *lpPerformanceCount); + int __stdcall QueryPerformanceFrequency(unsigned long long int *lpFrequency); + #if defined(__cplusplus) + } + #endif +#elif defined(__linux__) + #if _POSIX_C_SOURCE < 199309L + #undef _POSIX_C_SOURCE + #define _POSIX_C_SOURCE 199309L // Required for CLOCK_MONOTONIC if compiled with c99 without gnu ext. + #endif + #include // Required for: timespec + #include // Required for: clock_gettime() + + #include // Required for: sqrtf(), atan2f() +#endif +#if defined(__APPLE__) // macOS also defines __MACH__ + #include // Required for: clock_get_time() + #include // Required for: mach_timespec_t +#endif +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#define FORCE_TO_SWIPE 0.2f // Swipe force, measured in normalized screen units/time +#define MINIMUM_DRAG 0.015f // Drag minimum force, measured in normalized screen units (0.0f to 1.0f) +#define DRAG_TIMEOUT 0.3f // Drag minimum time for web, measured in seconds +#define MINIMUM_PINCH 0.005f // Pinch minimum force, measured in normalized screen units (0.0f to 1.0f) +#define TAP_TIMEOUT 0.3f // Tap minimum time, measured in seconds +#define PINCH_TIMEOUT 0.3f // Pinch minimum time, measured in seconds +#define DOUBLETAP_RANGE 0.03f // DoubleTap range, measured in normalized screen units (0.0f to 1.0f) + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- + +// Gestures module state context [136 bytes] +typedef struct { + unsigned int current; // Current detected gesture + unsigned int enabledFlags; // Enabled gestures flags + struct { + int firstId; // Touch id for first touch point + int pointCount; // Touch points counter + double eventTime; // Time stamp when an event happened + Vector2 upPosition; // Touch up position + Vector2 downPositionA; // First touch down position + Vector2 downPositionB; // Second touch down position + Vector2 downDragPosition; // Touch drag position + Vector2 moveDownPositionA; // First touch down position on move + Vector2 moveDownPositionB; // Second touch down position on move + Vector2 previousPositionA; // Previous position A to compare for pinch gestures + Vector2 previousPositionB; // Previous position B to compare for pinch gestures + int tapCounter; // TAP counter (one tap implies TOUCH_ACTION_DOWN and TOUCH_ACTION_UP actions) + } Touch; + struct { + bool resetRequired; // HOLD reset to get first touch point again + double timeDuration; // HOLD duration in seconds + } Hold; + struct { + Vector2 vector; // DRAG vector (between initial and current position) + float angle; // DRAG angle (relative to x-axis) + float distance; // DRAG distance (from initial touch point to final) (normalized [0..1]) + float intensity; // DRAG intensity, how far why did the DRAG (pixels per frame) + } Drag; + struct { + double startTime; // SWIPE start time to calculate drag intensity + } Swipe; + struct { + Vector2 vector; // PINCH vector (between first and second touch points) + float angle; // PINCH angle (relative to x-axis) + float distance; // PINCH displacement distance (normalized [0..1]) + } Pinch; +} GesturesData; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +static GesturesData GESTURES = { + .current = GESTURE_NONE, // No current gesture detected + .Touch.firstId = -1, + .enabledFlags = 0b0000001111111111 // All gestures supported by default +}; + +//---------------------------------------------------------------------------------- +// Module Internal Functions Declaration +//---------------------------------------------------------------------------------- +static float rgVector2Angle(Vector2 initialPosition, Vector2 finalPosition); +static float rgVector2Distance(Vector2 v1, Vector2 v2); +static double rgGetCurrentTime(void); + +//---------------------------------------------------------------------------------- +// Module Functions Definition +//---------------------------------------------------------------------------------- + +// Enable only desired gestures to be detected +void SetGesturesEnabled(unsigned int flags) +{ + GESTURES.enabledFlags = flags; +} + +// Check if a gesture have been detected +bool IsGestureDetected(unsigned int gesture) +{ + if ((GESTURES.enabledFlags & GESTURES.current) == gesture) return true; + else return false; +} + +// Process gesture event and translate it into gestures +void ProcessGestureEvent(GestureEvent event) +{ + // Reset required variables + GESTURES.Touch.pointCount = event.pointCount; // Required on UpdateGestures() + + if (GESTURES.Touch.pointCount == 1) // One touch point + { + if (event.touchAction == TOUCH_ACTION_DOWN) + { + GESTURES.Touch.tapCounter++; // Tap counter + + // Detect GESTURE_DOUBLE_TAP + if ((GESTURES.current == GESTURE_NONE) && (GESTURES.Touch.tapCounter >= 2) && ((rgGetCurrentTime() - GESTURES.Touch.eventTime) < TAP_TIMEOUT) && (rgVector2Distance(GESTURES.Touch.downPositionA, event.position[0]) < DOUBLETAP_RANGE)) + { + GESTURES.current = GESTURE_DOUBLETAP; + GESTURES.Touch.tapCounter = 0; + } + else // Detect GESTURE_TAP + { + GESTURES.Touch.tapCounter = 1; + GESTURES.current = GESTURE_TAP; + } + + GESTURES.Touch.downPositionA = event.position[0]; + GESTURES.Touch.downDragPosition = event.position[0]; + + GESTURES.Touch.upPosition = GESTURES.Touch.downPositionA; + GESTURES.Touch.eventTime = rgGetCurrentTime(); + + GESTURES.Swipe.startTime = rgGetCurrentTime(); + + GESTURES.Drag.vector = (Vector2){ 0.0f, 0.0f }; + } + else if (event.touchAction == TOUCH_ACTION_UP) + { + // A swipe can happen while the current gesture is drag, but (specially for web) also hold, so set upPosition for both cases + if (GESTURES.current == GESTURE_DRAG || GESTURES.current == GESTURE_HOLD) GESTURES.Touch.upPosition = event.position[0]; + + // NOTE: GESTURES.Drag.intensity dependent on the resolution of the screen + GESTURES.Drag.distance = rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition); + GESTURES.Drag.intensity = GESTURES.Drag.distance/(float)((rgGetCurrentTime() - GESTURES.Swipe.startTime)); + + // Detect GESTURE_SWIPE + if ((GESTURES.Drag.intensity > FORCE_TO_SWIPE) && (GESTURES.current != GESTURE_DRAG)) + { + // NOTE: Angle should be inverted in Y + GESTURES.Drag.angle = 360.0f - rgVector2Angle(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition); + + if ((GESTURES.Drag.angle < 30) || (GESTURES.Drag.angle > 330)) GESTURES.current = GESTURE_SWIPE_RIGHT; // Right + else if ((GESTURES.Drag.angle >= 30) && (GESTURES.Drag.angle <= 150)) GESTURES.current = GESTURE_SWIPE_UP; // Up + else if ((GESTURES.Drag.angle > 150) && (GESTURES.Drag.angle < 210)) GESTURES.current = GESTURE_SWIPE_LEFT; // Left + else if ((GESTURES.Drag.angle >= 210) && (GESTURES.Drag.angle <= 330)) GESTURES.current = GESTURE_SWIPE_DOWN; // Down + else GESTURES.current = GESTURE_NONE; + } + else + { + GESTURES.Drag.distance = 0.0f; + GESTURES.Drag.intensity = 0.0f; + GESTURES.Drag.angle = 0.0f; + + GESTURES.current = GESTURE_NONE; + } + + GESTURES.Touch.downDragPosition = (Vector2){ 0.0f, 0.0f }; + GESTURES.Touch.pointCount = 0; + } + else if (event.touchAction == TOUCH_ACTION_MOVE) + { + GESTURES.Touch.moveDownPositionA = event.position[0]; + + if (GESTURES.current == GESTURE_HOLD) + { + if (GESTURES.Hold.resetRequired) GESTURES.Touch.downPositionA = event.position[0]; + + GESTURES.Hold.resetRequired = false; + + // Detect GESTURE_DRAG + if ((rgGetCurrentTime() - GESTURES.Touch.eventTime) > DRAG_TIMEOUT) + { + GESTURES.Touch.eventTime = rgGetCurrentTime(); + GESTURES.current = GESTURE_DRAG; + } + } + + GESTURES.Drag.vector.x = GESTURES.Touch.moveDownPositionA.x - GESTURES.Touch.downDragPosition.x; + GESTURES.Drag.vector.y = GESTURES.Touch.moveDownPositionA.y - GESTURES.Touch.downDragPosition.y; + } + } + else if (GESTURES.Touch.pointCount == 2) // Two touch points + { + if (event.touchAction == TOUCH_ACTION_DOWN) + { + GESTURES.Touch.downPositionA = event.position[0]; + GESTURES.Touch.downPositionB = event.position[1]; + + GESTURES.Touch.previousPositionA = GESTURES.Touch.downPositionA; + GESTURES.Touch.previousPositionB = GESTURES.Touch.downPositionB; + + //GESTURES.Pinch.distance = rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.downPositionB); + + GESTURES.Pinch.vector.x = GESTURES.Touch.downPositionB.x - GESTURES.Touch.downPositionA.x; + GESTURES.Pinch.vector.y = GESTURES.Touch.downPositionB.y - GESTURES.Touch.downPositionA.y; + + GESTURES.current = GESTURE_HOLD; + GESTURES.Hold.timeDuration = rgGetCurrentTime(); + } + else if (event.touchAction == TOUCH_ACTION_MOVE) + { + GESTURES.Pinch.distance = rgVector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB); + + GESTURES.Touch.moveDownPositionA = event.position[0]; + GESTURES.Touch.moveDownPositionB = event.position[1]; + + GESTURES.Pinch.vector.x = GESTURES.Touch.moveDownPositionB.x - GESTURES.Touch.moveDownPositionA.x; + GESTURES.Pinch.vector.y = GESTURES.Touch.moveDownPositionB.y - GESTURES.Touch.moveDownPositionA.y; + + if ((rgVector2Distance(GESTURES.Touch.previousPositionA, GESTURES.Touch.moveDownPositionA) >= MINIMUM_PINCH) || (rgVector2Distance(GESTURES.Touch.previousPositionB, GESTURES.Touch.moveDownPositionB) >= MINIMUM_PINCH)) + { + if ( rgVector2Distance(GESTURES.Touch.previousPositionA, GESTURES.Touch.previousPositionB) > rgVector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB) ) GESTURES.current = GESTURE_PINCH_IN; + else GESTURES.current = GESTURE_PINCH_OUT; + } + else + { + GESTURES.current = GESTURE_HOLD; + GESTURES.Hold.timeDuration = rgGetCurrentTime(); + } + + // NOTE: Angle should be inverted in Y + GESTURES.Pinch.angle = 360.0f - rgVector2Angle(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB); + } + else if (event.touchAction == TOUCH_ACTION_UP) + { + GESTURES.Pinch.distance = 0.0f; + GESTURES.Pinch.angle = 0.0f; + GESTURES.Pinch.vector = (Vector2){ 0.0f, 0.0f }; + GESTURES.Touch.pointCount = 0; + + GESTURES.current = GESTURE_NONE; + } + } + else if (GESTURES.Touch.pointCount > 2) // More than two touch points + { + // TODO: Process gesture events for more than two points + } +} + +// Update gestures detected (must be called every frame) +void UpdateGestures(void) +{ + // NOTE: Gestures are processed through system callbacks on touch events + + // Detect GESTURE_HOLD + if (((GESTURES.current == GESTURE_TAP) || (GESTURES.current == GESTURE_DOUBLETAP)) && (GESTURES.Touch.pointCount < 2)) + { + GESTURES.current = GESTURE_HOLD; + GESTURES.Hold.timeDuration = rgGetCurrentTime(); + } + + // Detect GESTURE_NONE + if ((GESTURES.current == GESTURE_SWIPE_RIGHT) || (GESTURES.current == GESTURE_SWIPE_UP) || (GESTURES.current == GESTURE_SWIPE_LEFT) || (GESTURES.current == GESTURE_SWIPE_DOWN)) + { + GESTURES.current = GESTURE_NONE; + } +} + +// Get latest detected gesture +int GetGestureDetected(void) +{ + // Get current gesture only if enabled + return (GESTURES.enabledFlags & GESTURES.current); +} + +// Hold time measured in seconds +float GetGestureHoldDuration(void) +{ + // NOTE: time is calculated on current gesture HOLD + + double time = 0.0; + + if (GESTURES.current == GESTURE_HOLD) time = rgGetCurrentTime() - GESTURES.Hold.timeDuration; + + return (float)time; +} + +// Get drag vector (between initial touch point to current) +Vector2 GetGestureDragVector(void) +{ + // NOTE: drag vector is calculated on one touch points TOUCH_ACTION_MOVE + + return GESTURES.Drag.vector; +} + +// Get drag angle +// NOTE: Angle in degrees, horizontal-right is 0, counterclockwise +float GetGestureDragAngle(void) +{ + // NOTE: drag angle is calculated on one touch points TOUCH_ACTION_UP + + return GESTURES.Drag.angle; +} + +// Get distance between two pinch points +Vector2 GetGesturePinchVector(void) +{ + // NOTE: Pinch distance is calculated on two touch points TOUCH_ACTION_MOVE + + return GESTURES.Pinch.vector; +} + +// Get angle between two pinch points +// NOTE: Angle in degrees, horizontal-right is 0, counterclockwise +float GetGesturePinchAngle(void) +{ + // NOTE: pinch angle is calculated on two touch points TOUCH_ACTION_MOVE + + return GESTURES.Pinch.angle; +} + +//---------------------------------------------------------------------------------- +// Module Internal Functions Definition +//---------------------------------------------------------------------------------- +// Get angle from two-points vector with X-axis +static float rgVector2Angle(Vector2 v1, Vector2 v2) +{ + float angle = atan2f(v2.y - v1.y, v2.x - v1.x)*(180.0f/PI); + + if (angle < 0) angle += 360.0f; + + return angle; +} + +// Calculate distance between two Vector2 +static float rgVector2Distance(Vector2 v1, Vector2 v2) +{ + float result; + + float dx = v2.x - v1.x; + float dy = v2.y - v1.y; + + result = (float)sqrt(dx*dx + dy*dy); + + return result; +} + +// Time measure returned are seconds +static double rgGetCurrentTime(void) +{ + double time = 0; + +#if !defined(RGESTURES_STANDALONE) + time = GetTime(); +#else +#if defined(_WIN32) + unsigned long long int clockFrequency, currentTime; + + QueryPerformanceFrequency(&clockFrequency); // BE CAREFUL: Costly operation! + QueryPerformanceCounter(¤tTime); + + time = (double)currentTime/clockFrequency; // Time in seconds +#endif + +#if defined(__linux__) + // NOTE: Only for Linux-based systems + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); + unsigned long long int nowTime = (unsigned long long int)now.tv_sec*1000000000LLU + (unsigned long long int)now.tv_nsec; // Time in nanoseconds + + time = ((double)nowTime*1e-9); // Time in seconds +#endif + +#if defined(__APPLE__) + //#define CLOCK_REALTIME CALENDAR_CLOCK // returns UTC time since 1970-01-01 + //#define CLOCK_MONOTONIC SYSTEM_CLOCK // returns the time since boot time + + clock_serv_t cclock; + mach_timespec_t now; + host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock); + + // NOTE: OS X does not have clock_gettime(), using clock_get_time() + clock_get_time(cclock, &now); + mach_port_deallocate(mach_task_self(), cclock); + unsigned long long int nowTime = (unsigned long long int)now.tv_sec*1000000000LLU + (unsigned long long int)now.tv_nsec; // Time in nanoseconds + + time = ((double)nowTime*1e-9); // Time in seconds +#endif +#endif + + return time; +} + +#endif // RGESTURES_IMPLEMENTATION diff --git a/SlLinux/include/rlgl.h b/SlLinux/include/rlgl.h new file mode 100644 index 0000000..b40b50b --- /dev/null +++ b/SlLinux/include/rlgl.h @@ -0,0 +1,5405 @@ +/********************************************************************************************** +* +* rlgl v5.0 - A multi-OpenGL abstraction layer with an immediate-mode style API +* +* DESCRIPTION: +* An abstraction layer for multiple OpenGL versions (1.1, 2.1, 3.3 Core, 4.3 Core, ES 2.0, ES 3.0) +* that provides a pseudo-OpenGL 1.1 immediate-mode style API (rlVertex, rlTranslate, rlRotate...) +* +* ADDITIONAL NOTES: +* When choosing an OpenGL backend different than OpenGL 1.1, some internal buffer are +* initialized on rlglInit() to accumulate vertex data +* +* When an internal state change is required all the stored vertex data is rendered in batch, +* additionally, rlDrawRenderBatchActive() could be called to force flushing of the batch +* +* Some resources are also loaded for convenience, here the complete list: +* - Default batch (RLGL.defaultBatch): RenderBatch system to accumulate vertex data +* - Default texture (RLGL.defaultTextureId): 1x1 white pixel R8G8B8A8 +* - Default shader (RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs) +* +* Internal buffer (and resources) must be manually unloaded calling rlglClose() +* +* CONFIGURATION: +* #define GRAPHICS_API_OPENGL_11_SOFTWARE +* #define GRAPHICS_API_OPENGL_11 +* #define GRAPHICS_API_OPENGL_21 +* #define GRAPHICS_API_OPENGL_33 +* #define GRAPHICS_API_OPENGL_43 +* #define GRAPHICS_API_OPENGL_ES2 +* #define GRAPHICS_API_OPENGL_ES3 +* Use selected OpenGL graphics backend, should be supported by platform +* Those preprocessor defines are only used on rlgl module, if OpenGL version is +* required by any other module, use rlGetVersion() to check it +* +* #define RLGL_IMPLEMENTATION +* Generates the implementation of the library into the included file +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation +* +* #if RLGL_SHOW_GL_DETAILS_INFO +* Show OpenGL extensions and capabilities detailed logs on init +* +* #if RLGL_ENABLE_OPENGL_DEBUG_CONTEXT +* Enable debug context (only available on OpenGL 4.3) +* +* rlgl capabilities could be customized defining some internal +* values before library inclusion (default values listed): +* +* #define RL_DEFAULT_BATCH_BUFFER_ELEMENTS 8192 // Default internal render batch elements limits +* #define RL_DEFAULT_BATCH_BUFFERS 1 // Default number of batch buffers (multi-buffering) +* #define RL_DEFAULT_BATCH_DRAWCALLS 256 // Default number of batch draw calls (by state changes: mode, texture) +* #define RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS 4 // Maximum number of textures units that can be activated on batch drawing (SetShaderValueTexture()) +* +* #define RL_MAX_MATRIX_STACK_SIZE 32 // Maximum size of internal Matrix stack +* #define RL_MAX_SHADER_LOCATIONS 32 // Maximum number of shader locations supported +* #define RL_CULL_DISTANCE_NEAR 0.05 // Default projection matrix near cull distance +* #define RL_CULL_DISTANCE_FAR 4000.0 // Default projection matrix far cull distance +* +* When loading a shader, the following vertex attributes and uniform +* location names are tried to be set automatically: +* +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION "vertexPosition" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD "vertexTexCoord" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL "vertexNormal" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR "vertexColor" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT "vertexTangent" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_TANGENT +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2 "vertexTexCoord2" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD2 +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_BONEINDICES "vertexBoneIndices" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEINDICES +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_BONEWEIGHTS "vertexBoneWeights" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEWEIGHTS +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_MVP "mvp" // model-view-projection matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_VIEW "matView" // view matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_PROJECTION "matProjection" // projection matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_MODEL "matModel" // model matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_NORMAL "matNormal" // normal matrix (transpose(inverse(matModelView))) +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR "colDiffuse" // color diffuse (base tint color, multiplied by texture color) +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_BONEMATRICES "boneMatrices" // bone matrices +* #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0 "texture0" // texture0 (texture slot active 0) +* #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1 "texture1" // texture1 (texture slot active 1) +* #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2 "texture2" // texture2 (texture slot active 2) +* +* DEPENDENCIES: +* - OpenGL libraries (depending on platform and OpenGL version selected) +* - GLAD OpenGL extensions loading library (only for OpenGL 3.3 Core, 4.3 Core) +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2014-2026 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RLGL_H +#define RLGL_H + +#define RLGL_VERSION "5.0" + +// Function specifiers in case library is build/used as a shared library +// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll +// NOTE: visibility(default) attribute makes symbols "visible" when compiled with -fvisibility=hidden +#if defined(_WIN32) && defined(BUILD_LIBTYPE_SHARED) + #define RLAPI __declspec(dllexport) // Building the library as a Win32 shared library (.dll) +#elif defined(BUILD_LIBTYPE_SHARED) + #define RLAPI __attribute__((visibility("default"))) // Building the library as a Unix shared library (.so/.dylib) +#elif defined(_WIN32) && defined(USE_LIBTYPE_SHARED) + #define RLAPI __declspec(dllimport) // Using the library as a Win32 shared library (.dll) +#endif + +// Function specifiers definition +#ifndef RLAPI + #define RLAPI // Functions defined as 'extern' by default (implicit specifiers) +#endif + +// Support TRACELOG macros +#ifndef TRACELOG + #define TRACELOG(level, ...) (void)0 +#endif + +// Allow custom memory allocators +#ifndef RL_MALLOC + #define RL_MALLOC(sz) malloc(sz) +#endif +#ifndef RL_CALLOC + #define RL_CALLOC(n,sz) calloc(n,sz) +#endif +#ifndef RL_REALLOC + #define RL_REALLOC(n,sz) realloc(n,sz) +#endif +#ifndef RL_FREE + #define RL_FREE(p) free(p) +#endif + +// Security check in case no GRAPHICS_API_OPENGL_* defined +#if !defined(GRAPHICS_API_OPENGL_11_SOFTWARE) && \ + !defined(GRAPHICS_API_OPENGL_11) && \ + !defined(GRAPHICS_API_OPENGL_21) && \ + !defined(GRAPHICS_API_OPENGL_33) && \ + !defined(GRAPHICS_API_OPENGL_43) && \ + !defined(GRAPHICS_API_OPENGL_ES2) && \ + !defined(GRAPHICS_API_OPENGL_ES3) + #define GRAPHICS_API_OPENGL_33 +#endif + +// Security check in case multiple GRAPHICS_API_OPENGL_* defined +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + #if defined(GRAPHICS_API_OPENGL_21) + #undef GRAPHICS_API_OPENGL_21 + #endif + #if defined(GRAPHICS_API_OPENGL_33) + #undef GRAPHICS_API_OPENGL_33 + #endif + #if defined(GRAPHICS_API_OPENGL_43) + #undef GRAPHICS_API_OPENGL_43 + #endif + #if defined(GRAPHICS_API_OPENGL_ES2) + #undef GRAPHICS_API_OPENGL_ES2 + #endif +#endif + +// Software implementation uses OpenGL 1.1 functionality +#if defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + #define GRAPHICS_API_OPENGL_11 +#endif + +// OpenGL 2.1 uses most of OpenGL 3.3 Core functionality +// WARNING: Specific parts are checked with #if defines +#if defined(GRAPHICS_API_OPENGL_21) + #define GRAPHICS_API_OPENGL_33 +#endif + +// OpenGL 4.3 uses OpenGL 3.3 Core functionality +#if defined(GRAPHICS_API_OPENGL_43) + #define GRAPHICS_API_OPENGL_33 +#endif + +// OpenGL ES 3.0 uses OpenGL ES 2.0 functionality (and more) +#if defined(GRAPHICS_API_OPENGL_ES3) + #define GRAPHICS_API_OPENGL_ES2 +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- + +// Default internal render batch elements limits +#ifndef RL_DEFAULT_BATCH_BUFFER_ELEMENTS + #if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // This is the maximum amount of elements (quads) per batch + // NOTE: Be careful with text, every letter maps to a quad + #define RL_DEFAULT_BATCH_BUFFER_ELEMENTS 8192 + #endif + #if defined(GRAPHICS_API_OPENGL_ES2) + // Reducing memory sizes for embedded systems (RPI and HTML5) + // NOTE: On HTML5 (emscripten) this is allocated on heap, + // by default heap is only 16MB!...just take care... + #define RL_DEFAULT_BATCH_BUFFER_ELEMENTS 2048 + #endif +#endif +#ifndef RL_DEFAULT_BATCH_BUFFERS + #define RL_DEFAULT_BATCH_BUFFERS 1 // Default number of batch buffers (multi-buffering) +#endif +#ifndef RL_DEFAULT_BATCH_DRAWCALLS + #define RL_DEFAULT_BATCH_DRAWCALLS 256 // Default number of batch draw calls (by state changes: mode, texture) +#endif +#ifndef RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS + #define RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS 4 // Maximum number of textures units that can be activated on batch drawing (SetShaderValueTexture()) +#endif + +// Internal Matrix stack +#ifndef RL_MAX_MATRIX_STACK_SIZE + #define RL_MAX_MATRIX_STACK_SIZE 32 // Maximum size of Matrix stack +#endif + +// Shader limits +#ifndef RL_MAX_SHADER_LOCATIONS + #define RL_MAX_SHADER_LOCATIONS 32 // Maximum number of shader locations supported +#endif + +// Projection matrix culling +#ifndef RL_CULL_DISTANCE_NEAR + #define RL_CULL_DISTANCE_NEAR 0.05 // Default near cull distance +#endif +#ifndef RL_CULL_DISTANCE_FAR + #define RL_CULL_DISTANCE_FAR 4000.0 // Default far cull distance +#endif + +// Texture parameters (equivalent to OpenGL defines) +#define RL_TEXTURE_WRAP_S 0x2802 // GL_TEXTURE_WRAP_S +#define RL_TEXTURE_WRAP_T 0x2803 // GL_TEXTURE_WRAP_T +#define RL_TEXTURE_MAG_FILTER 0x2800 // GL_TEXTURE_MAG_FILTER +#define RL_TEXTURE_MIN_FILTER 0x2801 // GL_TEXTURE_MIN_FILTER + +#define RL_TEXTURE_FILTER_NEAREST 0x2600 // GL_NEAREST +#define RL_TEXTURE_FILTER_LINEAR 0x2601 // GL_LINEAR +#define RL_TEXTURE_FILTER_MIP_NEAREST 0x2700 // GL_NEAREST_MIPMAP_NEAREST +#define RL_TEXTURE_FILTER_NEAREST_MIP_LINEAR 0x2702 // GL_NEAREST_MIPMAP_LINEAR +#define RL_TEXTURE_FILTER_LINEAR_MIP_NEAREST 0x2701 // GL_LINEAR_MIPMAP_NEAREST +#define RL_TEXTURE_FILTER_MIP_LINEAR 0x2703 // GL_LINEAR_MIPMAP_LINEAR +#define RL_TEXTURE_FILTER_ANISOTROPIC 0x3000 // Anisotropic filter (custom identifier) +#define RL_TEXTURE_MIPMAP_BIAS_RATIO 0x4000 // Texture mipmap bias, percentage ratio (custom identifier) + +#define RL_TEXTURE_WRAP_REPEAT 0x2901 // GL_REPEAT +#define RL_TEXTURE_WRAP_CLAMP 0x812F // GL_CLAMP_TO_EDGE +#define RL_TEXTURE_WRAP_MIRROR_REPEAT 0x8370 // GL_MIRRORED_REPEAT +#define RL_TEXTURE_WRAP_MIRROR_CLAMP 0x8742 // GL_MIRROR_CLAMP_EXT + +// Matrix modes (equivalent to OpenGL) +#define RL_MODELVIEW 0x1700 // GL_MODELVIEW +#define RL_PROJECTION 0x1701 // GL_PROJECTION +#define RL_TEXTURE 0x1702 // GL_TEXTURE + +// Primitive assembly draw modes +#define RL_LINES 0x0001 // GL_LINES +#define RL_TRIANGLES 0x0004 // GL_TRIANGLES +#define RL_QUADS 0x0007 // GL_QUADS + +// GL equivalent data types +#define RL_UNSIGNED_BYTE 0x1401 // GL_UNSIGNED_BYTE +#define RL_FLOAT 0x1406 // GL_FLOAT + +// GL buffer usage hint +#define RL_STREAM_DRAW 0x88E0 // GL_STREAM_DRAW +#define RL_STREAM_READ 0x88E1 // GL_STREAM_READ +#define RL_STREAM_COPY 0x88E2 // GL_STREAM_COPY +#define RL_STATIC_DRAW 0x88E4 // GL_STATIC_DRAW +#define RL_STATIC_READ 0x88E5 // GL_STATIC_READ +#define RL_STATIC_COPY 0x88E6 // GL_STATIC_COPY +#define RL_DYNAMIC_DRAW 0x88E8 // GL_DYNAMIC_DRAW +#define RL_DYNAMIC_READ 0x88E9 // GL_DYNAMIC_READ +#define RL_DYNAMIC_COPY 0x88EA // GL_DYNAMIC_COPY + +// GL Shader type +#define RL_FRAGMENT_SHADER 0x8B30 // GL_FRAGMENT_SHADER +#define RL_VERTEX_SHADER 0x8B31 // GL_VERTEX_SHADER +#define RL_COMPUTE_SHADER 0x91B9 // GL_COMPUTE_SHADER + +// GL blending factors +#define RL_ZERO 0 // GL_ZERO +#define RL_ONE 1 // GL_ONE +#define RL_SRC_COLOR 0x0300 // GL_SRC_COLOR +#define RL_ONE_MINUS_SRC_COLOR 0x0301 // GL_ONE_MINUS_SRC_COLOR +#define RL_SRC_ALPHA 0x0302 // GL_SRC_ALPHA +#define RL_ONE_MINUS_SRC_ALPHA 0x0303 // GL_ONE_MINUS_SRC_ALPHA +#define RL_DST_ALPHA 0x0304 // GL_DST_ALPHA +#define RL_ONE_MINUS_DST_ALPHA 0x0305 // GL_ONE_MINUS_DST_ALPHA +#define RL_DST_COLOR 0x0306 // GL_DST_COLOR +#define RL_ONE_MINUS_DST_COLOR 0x0307 // GL_ONE_MINUS_DST_COLOR +#define RL_SRC_ALPHA_SATURATE 0x0308 // GL_SRC_ALPHA_SATURATE +#define RL_CONSTANT_COLOR 0x8001 // GL_CONSTANT_COLOR +#define RL_ONE_MINUS_CONSTANT_COLOR 0x8002 // GL_ONE_MINUS_CONSTANT_COLOR +#define RL_CONSTANT_ALPHA 0x8003 // GL_CONSTANT_ALPHA +#define RL_ONE_MINUS_CONSTANT_ALPHA 0x8004 // GL_ONE_MINUS_CONSTANT_ALPHA + +// GL blending functions/equations +#define RL_FUNC_ADD 0x8006 // GL_FUNC_ADD +#define RL_MIN 0x8007 // GL_MIN +#define RL_MAX 0x8008 // GL_MAX +#define RL_FUNC_SUBTRACT 0x800A // GL_FUNC_SUBTRACT +#define RL_FUNC_REVERSE_SUBTRACT 0x800B // GL_FUNC_REVERSE_SUBTRACT +#define RL_BLEND_EQUATION 0x8009 // GL_BLEND_EQUATION +#define RL_BLEND_EQUATION_RGB 0x8009 // GL_BLEND_EQUATION_RGB // (Same as BLEND_EQUATION) +#define RL_BLEND_EQUATION_ALPHA 0x883D // GL_BLEND_EQUATION_ALPHA +#define RL_BLEND_DST_RGB 0x80C8 // GL_BLEND_DST_RGB +#define RL_BLEND_SRC_RGB 0x80C9 // GL_BLEND_SRC_RGB +#define RL_BLEND_DST_ALPHA 0x80CA // GL_BLEND_DST_ALPHA +#define RL_BLEND_SRC_ALPHA 0x80CB // GL_BLEND_SRC_ALPHA +#define RL_BLEND_COLOR 0x8005 // GL_BLEND_COLOR + +#define RL_READ_FRAMEBUFFER 0x8CA8 // GL_READ_FRAMEBUFFER +#define RL_DRAW_FRAMEBUFFER 0x8CA9 // GL_DRAW_FRAMEBUFFER + +// Default shader vertex attribute locations +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION 0 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD 1 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL 2 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR 3 +#endif + #ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_TANGENT +#define RL_DEFAULT_SHADER_ATTRIB_LOCATION_TANGENT 4 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD2 + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD2 5 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_INDICES + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_INDICES 6 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEINDICES + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEINDICES 7 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEWEIGHTS + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEWEIGHTS 8 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_LOCATION_INSTANCETRANSFORM + #define RL_DEFAULT_SHADER_ATTRIB_LOCATION_INSTANCETRANSFORM 9 +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +#if (defined(__STDC__) && __STDC_VERSION__ >= 199901L) || (defined(_MSC_VER) && _MSC_VER >= 1800) + #include +#elif !defined(__cplusplus) && !defined(bool) && !defined(RL_BOOL_TYPE) + // Boolean type +typedef enum bool { false = 0, true = !false } bool; +#endif + +#if !defined(RL_MATRIX_TYPE) +// Matrix, 4x4 components, column major, OpenGL style, right handed +typedef struct Matrix { + float m0, m4, m8, m12; // Matrix first row (4 components) + float m1, m5, m9, m13; // Matrix second row (4 components) + float m2, m6, m10, m14; // Matrix third row (4 components) + float m3, m7, m11, m15; // Matrix fourth row (4 components) +} Matrix; +#define RL_MATRIX_TYPE +#endif + +// Dynamic vertex buffers (position + texcoords + colors + indices arrays) +typedef struct rlVertexBuffer { + int elementCount; // Number of elements in the buffer (QUADS) + + float *vertices; // Vertex position (XYZ - 3 components per vertex) (shader-location = 0) + float *texcoords; // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1) + float *normals; // Vertex normal (XYZ - 3 components per vertex) (shader-location = 2) + unsigned char *colors; // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3) +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + unsigned int *indices; // Vertex indices (in case vertex data comes indexed) (6 indices per quad) +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + unsigned short *indices; // Vertex indices (in case vertex data comes indexed) (6 indices per quad) +#endif + unsigned int vaoId; // OpenGL Vertex Array Object id + unsigned int vboId[5]; // OpenGL Vertex Buffer Objects id (5 types of vertex data) +} rlVertexBuffer; + +// Draw call type +// NOTE: Only texture changes register a new draw, other state-change-related elements are not +// used at this moment (vaoId, shaderId, matrices), raylib forces a batch draw call if any +// of those state-change happens (this is done in core module) +typedef struct rlDrawCall { + int mode; // Drawing mode: LINES, TRIANGLES, QUADS + int vertexCount; // Number of vertex of the draw + int vertexAlignment; // Number of vertex required for index alignment (LINES, TRIANGLES) + //unsigned int vaoId; // Vertex array id to be used on the draw -> Using RLGL.currentBatch->vertexBuffer.vaoId + //unsigned int shaderId; // Shader id to be used on the draw -> Using RLGL.currentShaderId + unsigned int textureId; // Texture id to be used on the draw -> Use to create new draw call if changes + + //Matrix projection; // Projection matrix for this draw -> Using RLGL.projection by default + //Matrix modelview; // Modelview matrix for this draw -> Using RLGL.modelview by default +} rlDrawCall; + +// rlRenderBatch type +typedef struct rlRenderBatch { + int bufferCount; // Number of vertex buffers (multi-buffering support) + int currentBuffer; // Current buffer tracking in case of multi-buffering + rlVertexBuffer *vertexBuffer; // Dynamic buffer(s) for vertex data + + rlDrawCall *draws; // Draw calls array, depends on textureId + int drawCounter; // Draw calls counter + float currentDepth; // Current depth value for next draw +} rlRenderBatch; + +// OpenGL version +typedef enum { + RL_OPENGL_11_SOFTWARE = 0, // Software rendering + RL_OPENGL_11, // OpenGL 1.1 + RL_OPENGL_21, // OpenGL 2.1 (GLSL 120) + RL_OPENGL_33, // OpenGL 3.3 (GLSL 330) + RL_OPENGL_43, // OpenGL 4.3 (using GLSL 330) + RL_OPENGL_ES_20, // OpenGL ES 2.0 (GLSL 100) + RL_OPENGL_ES_30 // OpenGL ES 3.0 (GLSL 300 es) +} rlGlVersion; + +// Trace log level +// NOTE: Organized by priority level +typedef enum { + RL_LOG_ALL = 0, // Display all logs + RL_LOG_TRACE, // Trace logging, intended for internal use only + RL_LOG_DEBUG, // Debug logging, used for internal debugging, it should be disabled on release builds + RL_LOG_INFO, // Info logging, used for program execution info + RL_LOG_WARNING, // Warning logging, used on recoverable failures + RL_LOG_ERROR, // Error logging, used on unrecoverable failures + RL_LOG_FATAL, // Fatal logging, used to abort program: exit(EXIT_FAILURE) + RL_LOG_NONE // Disable logging +} rlTraceLogLevel; + +// Texture pixel formats +// NOTE: Support depends on OpenGL version +typedef enum { + RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE = 1, // 8 bit per pixel (no alpha) + RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA, // 8*2 bpp (2 channels) + RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5, // 16 bpp + RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8, // 24 bpp + RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1, // 16 bpp (1 bit alpha) + RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4, // 16 bpp (4 bit alpha) + RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8, // 32 bpp + RL_PIXELFORMAT_UNCOMPRESSED_R32, // 32 bpp (1 channel - float) + RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32, // 32*3 bpp (3 channels - float) + RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32, // 32*4 bpp (4 channels - float) + RL_PIXELFORMAT_UNCOMPRESSED_R16, // 16 bpp (1 channel - half float) + RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16, // 16*3 bpp (3 channels - half float) + RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16, // 16*4 bpp (4 channels - half float) + RL_PIXELFORMAT_COMPRESSED_DXT1_RGB, // 4 bpp (no alpha) + RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA, // 4 bpp (1 bit alpha) + RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_ETC1_RGB, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_ETC2_RGB, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_PVRT_RGB, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA // 2 bpp +} rlPixelFormat; + +// Texture parameters: filter mode +// NOTE 1: Filtering considers mipmaps if available in the texture +// NOTE 2: Filter is accordingly set for minification and magnification +typedef enum { + RL_TEXTURE_FILTER_POINT = 0, // No filter, pixel approximation + RL_TEXTURE_FILTER_BILINEAR, // Linear filtering + RL_TEXTURE_FILTER_TRILINEAR, // Trilinear filtering (linear with mipmaps) + RL_TEXTURE_FILTER_ANISOTROPIC_4X, // Anisotropic filtering 4x + RL_TEXTURE_FILTER_ANISOTROPIC_8X, // Anisotropic filtering 8x + RL_TEXTURE_FILTER_ANISOTROPIC_16X, // Anisotropic filtering 16x +} rlTextureFilter; + +// Color blending modes (pre-defined) +typedef enum { + RL_BLEND_ALPHA = 0, // Blend textures considering alpha (default) + RL_BLEND_ADDITIVE, // Blend textures adding colors + RL_BLEND_MULTIPLIED, // Blend textures multiplying colors + RL_BLEND_ADD_COLORS, // Blend textures adding colors (alternative) + RL_BLEND_SUBTRACT_COLORS, // Blend textures subtracting colors (alternative) + RL_BLEND_ALPHA_PREMULTIPLY, // Blend premultiplied textures considering alpha + RL_BLEND_CUSTOM, // Blend textures using custom src/dst factors (use rlSetBlendFactors()) + RL_BLEND_CUSTOM_SEPARATE // Blend textures using custom src/dst factors (use rlSetBlendFactorsSeparate()) +} rlBlendMode; + +// Shader location point type +typedef enum { + RL_SHADER_LOC_VERTEX_POSITION = 0, // Shader location: vertex attribute: position + RL_SHADER_LOC_VERTEX_TEXCOORD01, // Shader location: vertex attribute: texcoord01 + RL_SHADER_LOC_VERTEX_TEXCOORD02, // Shader location: vertex attribute: texcoord02 + RL_SHADER_LOC_VERTEX_NORMAL, // Shader location: vertex attribute: normal + RL_SHADER_LOC_VERTEX_TANGENT, // Shader location: vertex attribute: tangent + RL_SHADER_LOC_VERTEX_COLOR, // Shader location: vertex attribute: color + RL_SHADER_LOC_MATRIX_MVP, // Shader location: matrix uniform: model-view-projection + RL_SHADER_LOC_MATRIX_VIEW, // Shader location: matrix uniform: view (camera transform) + RL_SHADER_LOC_MATRIX_PROJECTION, // Shader location: matrix uniform: projection + RL_SHADER_LOC_MATRIX_MODEL, // Shader location: matrix uniform: model (transform) + RL_SHADER_LOC_MATRIX_NORMAL, // Shader location: matrix uniform: normal + RL_SHADER_LOC_VECTOR_VIEW, // Shader location: vector uniform: view + RL_SHADER_LOC_COLOR_DIFFUSE, // Shader location: vector uniform: diffuse color + RL_SHADER_LOC_COLOR_SPECULAR, // Shader location: vector uniform: specular color + RL_SHADER_LOC_COLOR_AMBIENT, // Shader location: vector uniform: ambient color + RL_SHADER_LOC_MAP_ALBEDO, // Shader location: sampler2d texture: albedo (same as: RL_SHADER_LOC_MAP_DIFFUSE) + RL_SHADER_LOC_MAP_METALNESS, // Shader location: sampler2d texture: metalness (same as: RL_SHADER_LOC_MAP_SPECULAR) + RL_SHADER_LOC_MAP_NORMAL, // Shader location: sampler2d texture: normal + RL_SHADER_LOC_MAP_ROUGHNESS, // Shader location: sampler2d texture: roughness + RL_SHADER_LOC_MAP_OCCLUSION, // Shader location: sampler2d texture: occlusion + RL_SHADER_LOC_MAP_EMISSION, // Shader location: sampler2d texture: emission + RL_SHADER_LOC_MAP_HEIGHT, // Shader location: sampler2d texture: height + RL_SHADER_LOC_MAP_CUBEMAP, // Shader location: samplerCube texture: cubemap + RL_SHADER_LOC_MAP_IRRADIANCE, // Shader location: samplerCube texture: irradiance + RL_SHADER_LOC_MAP_PREFILTER, // Shader location: samplerCube texture: prefilter + RL_SHADER_LOC_MAP_BRDF // Shader location: sampler2d texture: brdf +} rlShaderLocationIndex; + +#define RL_SHADER_LOC_MAP_DIFFUSE RL_SHADER_LOC_MAP_ALBEDO +#define RL_SHADER_LOC_MAP_SPECULAR RL_SHADER_LOC_MAP_METALNESS + +// Shader uniform data type +typedef enum { + RL_SHADER_UNIFORM_FLOAT = 0, // Shader uniform type: float + RL_SHADER_UNIFORM_VEC2, // Shader uniform type: vec2 (2 float) + RL_SHADER_UNIFORM_VEC3, // Shader uniform type: vec3 (3 float) + RL_SHADER_UNIFORM_VEC4, // Shader uniform type: vec4 (4 float) + RL_SHADER_UNIFORM_INT, // Shader uniform type: int + RL_SHADER_UNIFORM_IVEC2, // Shader uniform type: ivec2 (2 int) + RL_SHADER_UNIFORM_IVEC3, // Shader uniform type: ivec3 (3 int) + RL_SHADER_UNIFORM_IVEC4, // Shader uniform type: ivec4 (4 int) + RL_SHADER_UNIFORM_UINT, // Shader uniform type: unsigned int + RL_SHADER_UNIFORM_UIVEC2, // Shader uniform type: uivec2 (2 unsigned int) + RL_SHADER_UNIFORM_UIVEC3, // Shader uniform type: uivec3 (3 unsigned int) + RL_SHADER_UNIFORM_UIVEC4, // Shader uniform type: uivec4 (4 unsigned int) + RL_SHADER_UNIFORM_SAMPLER2D // Shader uniform type: sampler2d +} rlShaderUniformDataType; + +// Shader attribute data types +typedef enum { + RL_SHADER_ATTRIB_FLOAT = 0, // Shader attribute type: float + RL_SHADER_ATTRIB_VEC2, // Shader attribute type: vec2 (2 float) + RL_SHADER_ATTRIB_VEC3, // Shader attribute type: vec3 (3 float) + RL_SHADER_ATTRIB_VEC4 // Shader attribute type: vec4 (4 float) +} rlShaderAttributeDataType; + +// Framebuffer attachment type +// NOTE: By default up to 8 color channels defined, but it can be more +typedef enum { + RL_ATTACHMENT_COLOR_CHANNEL0 = 0, // Framebuffer attachment type: color 0 + RL_ATTACHMENT_COLOR_CHANNEL1 = 1, // Framebuffer attachment type: color 1 + RL_ATTACHMENT_COLOR_CHANNEL2 = 2, // Framebuffer attachment type: color 2 + RL_ATTACHMENT_COLOR_CHANNEL3 = 3, // Framebuffer attachment type: color 3 + RL_ATTACHMENT_COLOR_CHANNEL4 = 4, // Framebuffer attachment type: color 4 + RL_ATTACHMENT_COLOR_CHANNEL5 = 5, // Framebuffer attachment type: color 5 + RL_ATTACHMENT_COLOR_CHANNEL6 = 6, // Framebuffer attachment type: color 6 + RL_ATTACHMENT_COLOR_CHANNEL7 = 7, // Framebuffer attachment type: color 7 + RL_ATTACHMENT_DEPTH = 100, // Framebuffer attachment type: depth + RL_ATTACHMENT_STENCIL = 200, // Framebuffer attachment type: stencil +} rlFramebufferAttachType; + +// Framebuffer texture attachment type +typedef enum { + RL_ATTACHMENT_CUBEMAP_POSITIVE_X = 0, // Framebuffer texture attachment type: cubemap, +X side + RL_ATTACHMENT_CUBEMAP_NEGATIVE_X = 1, // Framebuffer texture attachment type: cubemap, -X side + RL_ATTACHMENT_CUBEMAP_POSITIVE_Y = 2, // Framebuffer texture attachment type: cubemap, +Y side + RL_ATTACHMENT_CUBEMAP_NEGATIVE_Y = 3, // Framebuffer texture attachment type: cubemap, -Y side + RL_ATTACHMENT_CUBEMAP_POSITIVE_Z = 4, // Framebuffer texture attachment type: cubemap, +Z side + RL_ATTACHMENT_CUBEMAP_NEGATIVE_Z = 5, // Framebuffer texture attachment type: cubemap, -Z side + RL_ATTACHMENT_TEXTURE2D = 100, // Framebuffer texture attachment type: texture2d + RL_ATTACHMENT_RENDERBUFFER = 200, // Framebuffer texture attachment type: renderbuffer +} rlFramebufferAttachTextureType; + +// Face culling mode +typedef enum { + RL_CULL_FACE_FRONT = 0, + RL_CULL_FACE_BACK +} rlCullMode; + +//------------------------------------------------------------------------------------ +// Functions Declaration - Matrix operations +//------------------------------------------------------------------------------------ + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif + +RLAPI void rlMatrixMode(int mode); // Choose the current matrix to be transformed +RLAPI void rlPushMatrix(void); // Push the current matrix to stack +RLAPI void rlPopMatrix(void); // Pop latest inserted matrix from stack +RLAPI void rlLoadIdentity(void); // Reset current matrix to identity matrix +RLAPI void rlTranslatef(float x, float y, float z); // Multiply the current matrix by a translation matrix +RLAPI void rlRotatef(float angle, float x, float y, float z); // Multiply the current matrix by a rotation matrix +RLAPI void rlScalef(float x, float y, float z); // Multiply the current matrix by a scaling matrix +RLAPI void rlMultMatrixf(const float *matf); // Multiply the current matrix by another matrix +RLAPI void rlFrustum(double left, double right, double bottom, double top, double znear, double zfar); +RLAPI void rlOrtho(double left, double right, double bottom, double top, double znear, double zfar); +RLAPI void rlViewport(int x, int y, int width, int height); // Set the viewport area +RLAPI void rlSetClipPlanes(double nearPlane, double farPlane); // Set clip planes distances +RLAPI double rlGetCullDistanceNear(void); // Get cull plane distance near +RLAPI double rlGetCullDistanceFar(void); // Get cull plane distance far + +//------------------------------------------------------------------------------------ +// Functions Declaration - Vertex level operations +//------------------------------------------------------------------------------------ +RLAPI void rlBegin(int mode); // Initialize drawing mode (how to organize vertex) +RLAPI void rlEnd(void); // Finish vertex providing +RLAPI void rlVertex2i(int x, int y); // Define one vertex (position) - 2 int +RLAPI void rlVertex2f(float x, float y); // Define one vertex (position) - 2 float +RLAPI void rlVertex3f(float x, float y, float z); // Define one vertex (position) - 3 float +RLAPI void rlTexCoord2f(float x, float y); // Define one vertex (texture coordinate) - 2 float +RLAPI void rlNormal3f(float x, float y, float z); // Define one vertex (normal) - 3 float +RLAPI void rlColor4ub(unsigned char r, unsigned char g, unsigned char b, unsigned char a); // Define one vertex (color) - 4 byte +RLAPI void rlColor3f(float x, float y, float z); // Define one vertex (color) - 3 float +RLAPI void rlColor4f(float x, float y, float z, float w); // Define one vertex (color) - 4 float + +//------------------------------------------------------------------------------------ +// Functions Declaration - OpenGL style functions (common to 1.1, 3.3+, ES2) +// NOTE: This functions are used to completely abstract raylib code from OpenGL layer, +// some of them are direct wrappers over OpenGL calls, some others are custom +//------------------------------------------------------------------------------------ + +// Vertex buffers state +RLAPI bool rlEnableVertexArray(unsigned int vaoId); // Enable vertex array (VAO, if supported) +RLAPI void rlDisableVertexArray(void); // Disable vertex array (VAO, if supported) +RLAPI void rlEnableVertexBuffer(unsigned int id); // Enable vertex buffer (VBO) +RLAPI void rlDisableVertexBuffer(void); // Disable vertex buffer (VBO) +RLAPI void rlEnableVertexBufferElement(unsigned int id); // Enable vertex buffer element (VBO element) +RLAPI void rlDisableVertexBufferElement(void); // Disable vertex buffer element (VBO element) +RLAPI void rlEnableVertexAttribute(unsigned int index); // Enable vertex attribute index +RLAPI void rlDisableVertexAttribute(unsigned int index); // Disable vertex attribute index +RLAPI void rlEnableStatePointer(int vertexAttribType, void *buffer); // Enable attribute state pointer +RLAPI void rlDisableStatePointer(int vertexAttribType); // Disable attribute state pointer + +// Textures state +RLAPI void rlActiveTextureSlot(int slot); // Select and active a texture slot +RLAPI void rlEnableTexture(unsigned int id); // Enable texture +RLAPI void rlDisableTexture(void); // Disable texture +RLAPI void rlEnableTextureCubemap(unsigned int id); // Enable texture cubemap +RLAPI void rlDisableTextureCubemap(void); // Disable texture cubemap +RLAPI void rlTextureParameters(unsigned int id, int param, int value); // Set texture parameters (filter, wrap) +RLAPI void rlCubemapParameters(unsigned int id, int param, int value); // Set cubemap parameters (filter, wrap) + +// Shader state +RLAPI void rlEnableShader(unsigned int id); // Enable shader program +RLAPI void rlDisableShader(void); // Disable shader program + +// Framebuffer state +RLAPI void rlEnableFramebuffer(unsigned int id); // Enable render texture (fbo) +RLAPI void rlDisableFramebuffer(void); // Disable render texture (fbo), return to default framebuffer +RLAPI unsigned int rlGetActiveFramebuffer(void); // Get the currently active render texture (fbo), 0 for default framebuffer +RLAPI void rlActiveDrawBuffers(int count); // Activate multiple draw color buffers +RLAPI void rlBlitFramebuffer(int srcX, int srcY, int srcWidth, int srcHeight, int dstX, int dstY, int dstWidth, int dstHeight, int bufferMask); // Blit active framebuffer to main framebuffer +RLAPI void rlBindFramebuffer(unsigned int target, unsigned int framebuffer); // Bind framebuffer (FBO) + +// General render state +RLAPI void rlEnableColorBlend(void); // Enable color blending +RLAPI void rlDisableColorBlend(void); // Disable color blending +RLAPI void rlEnableDepthTest(void); // Enable depth test +RLAPI void rlDisableDepthTest(void); // Disable depth test +RLAPI void rlEnableDepthMask(void); // Enable depth write +RLAPI void rlDisableDepthMask(void); // Disable depth write +RLAPI void rlEnableBackfaceCulling(void); // Enable backface culling +RLAPI void rlDisableBackfaceCulling(void); // Disable backface culling +RLAPI void rlColorMask(bool r, bool g, bool b, bool a); // Color mask control +RLAPI void rlSetCullFace(int mode); // Set face culling mode +RLAPI void rlEnableScissorTest(void); // Enable scissor test +RLAPI void rlDisableScissorTest(void); // Disable scissor test +RLAPI void rlScissor(int x, int y, int width, int height); // Scissor test +RLAPI void rlEnablePointMode(void); // Enable point mode +RLAPI void rlDisablePointMode(void); // Disable point mode +RLAPI void rlSetPointSize(float size); // Set the point drawing size +RLAPI float rlGetPointSize(void); // Get the point drawing size +RLAPI void rlEnableWireMode(void); // Enable wire mode +RLAPI void rlDisableWireMode(void); // Disable wire mode +RLAPI void rlSetLineWidth(float width); // Set the line drawing width +RLAPI float rlGetLineWidth(void); // Get the line drawing width +RLAPI void rlEnableSmoothLines(void); // Enable line aliasing +RLAPI void rlDisableSmoothLines(void); // Disable line aliasing +RLAPI void rlEnableStereoRender(void); // Enable stereo rendering +RLAPI void rlDisableStereoRender(void); // Disable stereo rendering +RLAPI bool rlIsStereoRenderEnabled(void); // Check if stereo render is enabled + +RLAPI void rlClearColor(unsigned char r, unsigned char g, unsigned char b, unsigned char a); // Clear color buffer with color +RLAPI void rlClearScreenBuffers(void); // Clear used screen buffers (color and depth) +RLAPI void rlCheckErrors(void); // Check and log OpenGL error codes +RLAPI void rlSetBlendMode(int mode); // Set blending mode +RLAPI void rlSetBlendFactors(int glSrcFactor, int glDstFactor, int glEquation); // Set blending mode factor and equation (using OpenGL factors) +RLAPI void rlSetBlendFactorsSeparate(int glSrcRGB, int glDstRGB, int glSrcAlpha, int glDstAlpha, int glEqRGB, int glEqAlpha); // Set blending mode factors and equations separately (using OpenGL factors) + +//------------------------------------------------------------------------------------ +// Functions Declaration - rlgl functionality +//------------------------------------------------------------------------------------ +// rlgl initialization functions +RLAPI void rlglInit(int width, int height); // Initialize rlgl (buffers, shaders, textures, states) +RLAPI void rlglClose(void); // De-initialize rlgl (buffers, shaders, textures) +RLAPI void rlLoadExtensions(void *loader); // Load OpenGL extensions (loader function required) +RLAPI void *rlGetProcAddress(const char *procName); // Get OpenGL procedure address +RLAPI int rlGetVersion(void); // Get current OpenGL version +RLAPI void rlSetFramebufferWidth(int width); // Set current framebuffer width +RLAPI int rlGetFramebufferWidth(void); // Get default framebuffer width +RLAPI void rlSetFramebufferHeight(int height); // Set current framebuffer height +RLAPI int rlGetFramebufferHeight(void); // Get default framebuffer height + +RLAPI unsigned int rlGetTextureIdDefault(void); // Get default texture id +RLAPI unsigned int rlGetShaderIdDefault(void); // Get default shader id +RLAPI int *rlGetShaderLocsDefault(void); // Get default shader locations + +// Render batch management +// NOTE: rlgl provides a default render batch to behave like OpenGL 1.1 immediate mode +// but this render batch API is exposed in case of custom batches are required +RLAPI rlRenderBatch rlLoadRenderBatch(int numBuffers, int bufferElements); // Load a render batch system +RLAPI void rlUnloadRenderBatch(rlRenderBatch batch); // Unload render batch system +RLAPI void rlDrawRenderBatch(rlRenderBatch *batch); // Draw render batch data (Update->Draw->Reset) +RLAPI void rlSetRenderBatchActive(rlRenderBatch *batch); // Set the active render batch for rlgl (NULL for default internal) +RLAPI void rlDrawRenderBatchActive(void); // Update and draw internal render batch +RLAPI bool rlCheckRenderBatchLimit(int vCount); // Check internal buffer overflow for a given number of vertex + +RLAPI void rlSetTexture(unsigned int id); // Set current texture for render batch and check buffers limits + +//------------------------------------------------------------------------------------------------------------------------ + +// Vertex buffers management +RLAPI unsigned int rlLoadVertexArray(void); // Load vertex array (vao) if supported +RLAPI unsigned int rlLoadVertexBuffer(const void *buffer, int size, bool dynamic); // Load a vertex buffer object +RLAPI unsigned int rlLoadVertexBufferElement(const void *buffer, int size, bool dynamic); // Load vertex buffer elements object +RLAPI void rlUpdateVertexBuffer(unsigned int bufferId, const void *data, int dataSize, int offset); // Update vertex buffer object data on GPU buffer +RLAPI void rlUpdateVertexBufferElements(unsigned int id, const void *data, int dataSize, int offset); // Update vertex buffer elements data on GPU buffer +RLAPI void rlUnloadVertexArray(unsigned int vaoId); // Unload vertex array (vao) +RLAPI void rlUnloadVertexBuffer(unsigned int vboId); // Unload vertex buffer object +RLAPI void rlSetVertexAttribute(unsigned int index, int compSize, int type, bool normalized, int stride, int offset); // Set vertex attribute data configuration +RLAPI void rlSetVertexAttributeDivisor(unsigned int index, int divisor); // Set vertex attribute data divisor +RLAPI void rlSetVertexAttributeDefault(int locIndex, const void *value, int attribType, int count); // Set vertex attribute default value, when attribute to provided +RLAPI void rlDrawVertexArray(int offset, int count); // Draw vertex array (currently active vao) +RLAPI void rlDrawVertexArrayElements(int offset, int count, const void *buffer); // Draw vertex array elements +RLAPI void rlDrawVertexArrayInstanced(int offset, int count, int instances); // Draw vertex array (currently active vao) with instancing +RLAPI void rlDrawVertexArrayElementsInstanced(int offset, int count, const void *buffer, int instances); // Draw vertex array elements with instancing + +// Textures management +RLAPI unsigned int rlLoadTexture(const void *data, int width, int height, int format, int mipmapCount); // Load texture data +RLAPI unsigned int rlLoadTextureDepth(int width, int height, bool useRenderBuffer); // Load depth texture/renderbuffer (to be attached to fbo) +RLAPI unsigned int rlLoadTextureCubemap(const void *data, int size, int format, int mipmapCount); // Load texture cubemap data +RLAPI void rlUpdateTexture(unsigned int id, int offsetX, int offsetY, int width, int height, int format, const void *data); // Update texture with new data on GPU +RLAPI void rlGetGlTextureFormats(int format, unsigned int *glInternalFormat, unsigned int *glFormat, unsigned int *glType); // Get OpenGL internal formats +RLAPI const char *rlGetPixelFormatName(unsigned int format); // Get name string for pixel format +RLAPI void rlUnloadTexture(unsigned int id); // Unload texture from GPU memory +RLAPI void rlGenTextureMipmaps(unsigned int id, int width, int height, int format, int *mipmaps); // Generate mipmap data for selected texture +RLAPI void *rlReadTexturePixels(unsigned int id, int width, int height, int format); // Read texture pixel data +RLAPI unsigned char *rlReadScreenPixels(int width, int height); // Read screen pixel data (color buffer) + +// Framebuffer management (fbo) +RLAPI unsigned int rlLoadFramebuffer(void); // Load an empty framebuffer +RLAPI void rlFramebufferAttach(unsigned int id, unsigned int texId, int attachType, int texType, int mipLevel); // Attach texture/renderbuffer to a framebuffer +RLAPI bool rlFramebufferComplete(unsigned int id); // Verify framebuffer is complete +RLAPI void rlUnloadFramebuffer(unsigned int id); // Delete framebuffer from GPU +// WARNING: Copy and resize framebuffer functionality only defined for software backend +RLAPI void rlCopyFramebuffer(int x, int y, int width, int height, int format, void *pixels); // Copy framebuffer pixel data to internal buffer +RLAPI void rlResizeFramebuffer(int width, int height); // Resize internal framebuffer + +// Shaders management +RLAPI unsigned int rlLoadShader(const char *code, int type); // Load (compile) shader and return shader id (type: RL_VERTEX_SHADER, RL_FRAGMENT_SHADER, RL_COMPUTE_SHADER) +RLAPI unsigned int rlLoadShaderProgram(const char *vsCode, const char *fsCode); // Load shader from code strings +RLAPI unsigned int rlLoadShaderProgramEx(unsigned int vsId, unsigned int fsId); // Load shader program, using already loaded shader ids +RLAPI unsigned int rlLoadShaderProgramCompute(unsigned int csId); // Load compute shader program +RLAPI void rlUnloadShader(unsigned int id); // Unload shader, loaded with rlLoadShader() +RLAPI void rlUnloadShaderProgram(unsigned int id); // Unload shader program +RLAPI int rlGetLocationUniform(unsigned int id, const char *uniformName); // Get shader location uniform, requires shader program id +RLAPI int rlGetLocationAttrib(unsigned int id, const char *attribName); // Get shader location attribute, requires shader program id +RLAPI void rlSetUniform(int locIndex, const void *value, int uniformType, int count); // Set shader value uniform +RLAPI void rlSetUniformMatrix(int locIndex, Matrix mat); // Set shader value matrix +RLAPI void rlSetUniformMatrices(int locIndex, const Matrix *mat, int count); // Set shader value matrices +RLAPI void rlSetUniformSampler(int locIndex, unsigned int textureId); // Set shader value sampler +RLAPI void rlSetShader(unsigned int id, int *locs); // Set shader currently active (id and locations) + +// Compute shader management +RLAPI void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ); // Dispatch compute shader (equivalent to *draw* for graphics pipeline) + +// Shader buffer storage object management (ssbo) +RLAPI unsigned int rlLoadShaderBuffer(unsigned int size, const void *data, int usageHint); // Load shader storage buffer object (SSBO) +RLAPI void rlUnloadShaderBuffer(unsigned int ssboId); // Unload shader storage buffer object (SSBO) +RLAPI void rlUpdateShaderBuffer(unsigned int id, const void *data, unsigned int dataSize, unsigned int offset); // Update SSBO buffer data +RLAPI void rlBindShaderBuffer(unsigned int id, unsigned int index); // Bind SSBO buffer +RLAPI void rlReadShaderBuffer(unsigned int id, void *dest, unsigned int count, unsigned int offset); // Read SSBO buffer data (GPU->CPU) +RLAPI void rlCopyShaderBuffer(unsigned int destId, unsigned int srcId, unsigned int destOffset, unsigned int srcOffset, unsigned int count); // Copy SSBO data between buffers +RLAPI unsigned int rlGetShaderBufferSize(unsigned int id); // Get SSBO buffer size + +// Buffer management +RLAPI void rlBindImageTexture(unsigned int id, unsigned int index, int format, bool readonly); // Bind image texture + +// Matrix state management +RLAPI Matrix rlGetMatrixModelview(void); // Get internal modelview matrix +RLAPI Matrix rlGetMatrixProjection(void); // Get internal projection matrix +RLAPI Matrix rlGetMatrixTransform(void); // Get internal accumulated transform matrix +RLAPI Matrix rlGetMatrixProjectionStereo(int eye); // Get internal projection matrix for stereo render (selected eye) +RLAPI Matrix rlGetMatrixViewOffsetStereo(int eye); // Get internal view offset matrix for stereo render (selected eye) +RLAPI void rlSetMatrixProjection(Matrix proj); // Set a custom projection matrix (replaces internal projection matrix) +RLAPI void rlSetMatrixModelview(Matrix view); // Set a custom modelview matrix (replaces internal modelview matrix) +RLAPI void rlSetMatrixProjectionStereo(Matrix right, Matrix left); // Set eyes projection matrices for stereo rendering +RLAPI void rlSetMatrixViewOffsetStereo(Matrix right, Matrix left); // Set eyes view offsets matrices for stereo rendering + +// Quick and dirty cube/quad buffers load->draw->unload +RLAPI void rlLoadDrawCube(void); // Load and draw a cube +RLAPI void rlLoadDrawQuad(void); // Load and draw a quad + +#if defined(__cplusplus) +} +#endif + +#endif // RLGL_H + +/*********************************************************************************** +* +* RLGL IMPLEMENTATION +* +************************************************************************************/ + +#if defined(RLGL_IMPLEMENTATION) + +// Expose OpenGL functions from glad in raylib +#if defined(BUILD_LIBTYPE_SHARED) + #define GLAD_API_CALL_EXPORT + #define GLAD_API_CALL_EXPORT_BUILD +#endif + +#if defined(GRAPHICS_API_OPENGL_11) + #if defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + #define RLSW_IMPLEMENTATION + #define SW_MALLOC(sz) RL_MALLOC(sz) + #define SW_REALLOC(ptr, newSz) RL_REALLOC(ptr, newSz) + #define SW_FREE(ptr) RL_FREE(ptr) + #include "external/rlsw.h" // OpenGL 1.1 software implementation + #else + #if defined(__APPLE__) + #include // OpenGL 1.1 library for OSX + #include // OpenGL extensions library + #else + // APIENTRY for OpenGL function pointer declarations is required + #if !defined(APIENTRY) + #if defined(_WIN32) + #define APIENTRY __stdcall + #else + #define APIENTRY + #endif + #endif + // WINGDIAPI definition. Some Windows OpenGL headers need it + #if !defined(WINGDIAPI) && defined(_WIN32) + #define WINGDIAPI __declspec(dllimport) + #endif + + #include // OpenGL 1.1 library + #endif + #endif +#endif + +#if defined(GRAPHICS_API_OPENGL_33) + #define GLAD_MALLOC RL_MALLOC + #define GLAD_FREE RL_FREE + + #define GLAD_GL_IMPLEMENTATION + #include "external/glad.h" // GLAD extensions loading library, includes OpenGL headers +#endif + +#if defined(GRAPHICS_API_OPENGL_ES3) + #include // OpenGL ES 3.0 library + #define GL_GLEXT_PROTOTYPES + #include // OpenGL ES 2.0 extensions library +#elif defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: OpenGL ES 2.0 can be enabled on Desktop platforms, + // in that case, functions are loaded from a custom glad for OpenGL ES 2.0 + // TODO: OpenGL ES 2.0 support shouldn't be platform-dependant, neither require GLAD + #if defined(PLATFORM_DESKTOP_GLFW) || defined(PLATFORM_DESKTOP_SDL) + #define GLAD_GLES2_IMPLEMENTATION + #include "external/glad_gles2.h" + #else + #define GL_GLEXT_PROTOTYPES + //#include // EGL library -> not required, platform layer + #include // OpenGL ES 2.0 library + #include // OpenGL ES 2.0 extensions library + #endif + + // It seems OpenGL ES 2.0 instancing entry points are not defined on Raspberry Pi + // provided headers (despite being defined in official Khronos GLES2 headers) + // TODO: Avoid raylib platform-dependant code on rlgl, it should be a completely portable library + #if defined(PLATFORM_DRM) + typedef void (GL_APIENTRYP PFNGLDRAWARRAYSINSTANCEDEXTPROC) (GLenum mode, GLint start, GLsizei count, GLsizei primcount); + typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); + typedef void (GL_APIENTRYP PFNGLVERTEXATTRIBDIVISOREXTPROC) (GLuint index, GLuint divisor); + #endif +#endif + +#include // Required for: calloc(), free() +#include // Required for: strcmp(), strlen() [Used in rlglInit(), on extensions loading] +#include // Required for: sqrtf(), sinf(), cosf(), floor(), log() + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef PI + #define PI 3.14159265358979323846f +#endif +#ifndef DEG2RAD + #define DEG2RAD (PI/180.0f) +#endif +#ifndef RAD2DEG + #define RAD2DEG (180.0f/PI) +#endif + +#ifndef GL_SHADING_LANGUAGE_VERSION + #define GL_SHADING_LANGUAGE_VERSION 0x8B8C +#endif + +#ifndef GL_COMPRESSED_RGB_S3TC_DXT1_EXT + #define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0 +#endif +#ifndef GL_COMPRESSED_RGBA_S3TC_DXT1_EXT + #define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 +#endif +#ifndef GL_COMPRESSED_RGBA_S3TC_DXT3_EXT + #define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2 +#endif +#ifndef GL_COMPRESSED_RGBA_S3TC_DXT5_EXT + #define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 +#endif +#ifndef GL_ETC1_RGB8_OES + #define GL_ETC1_RGB8_OES 0x8D64 +#endif +#ifndef GL_COMPRESSED_RGB8_ETC2 + #define GL_COMPRESSED_RGB8_ETC2 0x9274 +#endif +#ifndef GL_COMPRESSED_RGBA8_ETC2_EAC + #define GL_COMPRESSED_RGBA8_ETC2_EAC 0x9278 +#endif +#ifndef GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG + #define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00 +#endif +#ifndef GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG + #define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02 +#endif +#ifndef GL_COMPRESSED_RGBA_ASTC_4x4_KHR + #define GL_COMPRESSED_RGBA_ASTC_4x4_KHR 0x93b0 +#endif +#ifndef GL_COMPRESSED_RGBA_ASTC_8x8_KHR + #define GL_COMPRESSED_RGBA_ASTC_8x8_KHR 0x93b7 +#endif + +#ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT + #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF +#endif +#ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT + #define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE +#endif + +#ifndef GL_PROGRAM_POINT_SIZE + #define GL_PROGRAM_POINT_SIZE 0x8642 +#endif + +#ifndef GL_LINE_WIDTH + #define GL_LINE_WIDTH 0x0B21 +#endif + +#if defined(GRAPHICS_API_OPENGL_11) + #define GL_UNSIGNED_SHORT_5_6_5 0x8363 + #define GL_UNSIGNED_SHORT_5_5_5_1 0x8034 + #define GL_UNSIGNED_SHORT_4_4_4_4 0x8033 +#endif + +#if defined(GRAPHICS_API_OPENGL_21) + #define GL_LUMINANCE 0x1909 + #define GL_LUMINANCE_ALPHA 0x190A +#endif + +#if defined(GRAPHICS_API_OPENGL_ES2) + #define glClearDepth glClearDepthf + #if !defined(GRAPHICS_API_OPENGL_ES3) + #define GL_READ_FRAMEBUFFER GL_FRAMEBUFFER + #define GL_DRAW_FRAMEBUFFER GL_FRAMEBUFFER + #endif +#endif + +// Default shader vertex attribute names to set location points +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION + #define RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION "vertexPosition" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD + #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD "vertexTexCoord" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL + #define RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL "vertexNormal" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR + #define RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR "vertexColor" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT + #define RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT "vertexTangent" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_TANGENT +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2 + #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2 "vertexTexCoord2" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD2 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_BONEINDICES + #define RL_DEFAULT_SHADER_ATTRIB_NAME_BONEINDICES "vertexBoneIndices" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEINDICES +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_BONEWEIGHTS + #define RL_DEFAULT_SHADER_ATTRIB_NAME_BONEWEIGHTS "vertexBoneWeights" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEWEIGHTS +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_BONEMATRICES + #define RL_DEFAULT_SHADER_UNIFORM_NAME_BONEMATRICES "boneMatrices" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEMATRICES +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_INSTANCETRANSFORM + #define RL_DEFAULT_SHADER_ATTRIB_NAME_INSTANCETRANSFORM "instanceTransform" // Bound by default to shader location: RL_DEFAULT_SHADER_ATTRIB_LOCATION_INSTANCETRANSFORM +#endif + +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_MVP + #define RL_DEFAULT_SHADER_UNIFORM_NAME_MVP "mvp" // model-view-projection matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_VIEW + #define RL_DEFAULT_SHADER_UNIFORM_NAME_VIEW "matView" // view matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_PROJECTION + #define RL_DEFAULT_SHADER_UNIFORM_NAME_PROJECTION "matProjection" // projection matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_MODEL + #define RL_DEFAULT_SHADER_UNIFORM_NAME_MODEL "matModel" // model matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_NORMAL + #define RL_DEFAULT_SHADER_UNIFORM_NAME_NORMAL "matNormal" // normal matrix (transpose(inverse(matModelView)) +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR + #define RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR "colDiffuse" // color diffuse (base tint color, multiplied by texture color) +#endif +#ifndef RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0 + #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0 "texture0" // texture0 (texture slot active 0) +#endif +#ifndef RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1 + #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1 "texture1" // texture1 (texture slot active 1) +#endif +#ifndef RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2 + #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2 "texture2" // texture2 (texture slot active 2) +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_BONEMATRICES + #define RL_DEFAULT_SHADER_UNIFORM_NAME_BONEMATRICES "boneMatrices" // bone matrices (required for GPU skinning) +#endif + +//---------------------------------------------------------------------------------- +// Module Types and Structures Definition +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + +typedef void *(*rlglLoadProc)(const char *name); // OpenGL extension functions loader signature (same as GLADloadproc) + +typedef struct rlglData { + rlRenderBatch *currentBatch; // Current render batch + rlRenderBatch defaultBatch; // Default internal render batch + + rlglLoadProc loader; // OpenGL function loader + + struct { + int vertexCounter; // Current active render batch vertex counter (generic, used for all batches) + float texcoordx, texcoordy; // Current active texture coordinate (added on glVertex*()) + float normalx, normaly, normalz; // Current active normal (added on glVertex*()) + unsigned char colorr, colorg, colorb, colora; // Current active color (added on glVertex*()) + + int currentMatrixMode; // Current matrix mode + Matrix *currentMatrix; // Current matrix pointer + Matrix modelview; // Default modelview matrix + Matrix projection; // Default projection matrix + Matrix transform; // Transform matrix to be used with rlTranslate, rlRotate, rlScale + bool transformRequired; // Require transform matrix application to current draw-call vertex (if required) + Matrix stack[RL_MAX_MATRIX_STACK_SIZE];// Matrix stack for push/pop + int stackCounter; // Matrix stack counter + + unsigned int currentTextureId; // Current texture id to be used on glBegin + unsigned int defaultTextureId; // Default texture used on shapes/poly drawing (required by shader) + unsigned int activeTextureId[RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS]; // Active texture ids to be enabled on batch drawing (0 active by default) + unsigned int defaultVShaderId; // Default vertex shader id (used by default shader program) + unsigned int defaultFShaderId; // Default fragment shader id (used by default shader program) + unsigned int defaultShaderId; // Default shader program id, supports vertex color and diffuse texture + int *defaultShaderLocs; // Default shader locations pointer to be used on rendering + unsigned int currentShaderId; // Current shader id to be used on rendering (by default, defaultShaderId) + int *currentShaderLocs; // Current shader locations pointer to be used on rendering (by default, defaultShaderLocs) + + bool stereoRender; // Stereo rendering flag + Matrix projectionStereo[2]; // VR stereo rendering eyes projection matrices + Matrix viewOffsetStereo[2]; // VR stereo rendering eyes view offset matrices + + // Blending variables + int currentBlendMode; // Blending mode active + int glBlendSrcFactor; // Blending source factor + int glBlendDstFactor; // Blending destination factor + int glBlendEquation; // Blending equation + int glBlendSrcFactorRGB; // Blending source RGB factor + int glBlendDestFactorRGB; // Blending destination RGB factor + int glBlendSrcFactorAlpha; // Blending source alpha factor + int glBlendDestFactorAlpha; // Blending destination alpha factor + int glBlendEquationRGB; // Blending equation for RGB + int glBlendEquationAlpha; // Blending equation for alpha + bool glCustomBlendModeModified; // Custom blending factor and equation modification status + + int framebufferWidth; // Current framebuffer width + int framebufferHeight; // Current framebuffer height + + } State; // Renderer state + struct { + bool vao; // VAO support (OpenGL ES2 could not support VAO extension) (GL_ARB_vertex_array_object) + bool instancing; // Instancing supported (GL_ANGLE_instanced_arrays, GL_EXT_draw_instanced + GL_EXT_instanced_arrays) + bool texNPOT; // NPOT textures full support (GL_ARB_texture_non_power_of_two, GL_OES_texture_npot) + bool texDepth; // Depth textures supported (GL_ARB_depth_texture, GL_OES_depth_texture) + bool texDepthWebGL; // Depth textures supported WebGL specific (GL_WEBGL_depth_texture) + bool texFloat32; // float textures support (32 bit per channel) (GL_OES_texture_float) + bool texFloat16; // half float textures support (16 bit per channel) (GL_OES_texture_half_float) + bool texCompDXT; // DDS texture compression support (GL_EXT_texture_compression_s3tc, GL_WEBGL_compressed_texture_s3tc, GL_WEBKIT_WEBGL_compressed_texture_s3tc) + bool texCompETC1; // ETC1 texture compression support (GL_OES_compressed_ETC1_RGB8_texture, GL_WEBGL_compressed_texture_etc1) + bool texCompETC2; // ETC2/EAC texture compression support (GL_ARB_ES3_compatibility) + bool texCompPVRT; // PVR texture compression support (GL_IMG_texture_compression_pvrtc) + bool texCompASTC; // ASTC texture compression support (GL_KHR_texture_compression_astc_hdr, GL_KHR_texture_compression_astc_ldr) + bool texMirrorClamp; // Clamp mirror wrap mode supported (GL_EXT_texture_mirror_clamp) + bool texAnisoFilter; // Anisotropic texture filtering support (GL_EXT_texture_filter_anisotropic) + bool computeShader; // Compute shaders support (GL_ARB_compute_shader) + bool ssbo; // Shader storage buffer object support (GL_ARB_shader_storage_buffer_object) + + float maxAnisotropyLevel; // Maximum anisotropy level supported (minimum is 2.0f) + int maxDepthBits; // Maximum bits for depth component + + } ExtSupported; // Extensions supported flags +} rlglData; + +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +static double rlCullDistanceNear = RL_CULL_DISTANCE_NEAR; +static double rlCullDistanceFar = RL_CULL_DISTANCE_FAR; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +static rlglData RLGL = { 0 }; +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 +static bool isGpuReady = false; + +#if defined(GRAPHICS_API_OPENGL_ES2) && !defined(GRAPHICS_API_OPENGL_ES3) +// NOTE: VAO functionality is exposed through extensions (OES) +static PFNGLGENVERTEXARRAYSOESPROC glGenVertexArrays = NULL; +static PFNGLBINDVERTEXARRAYOESPROC glBindVertexArray = NULL; +static PFNGLDELETEVERTEXARRAYSOESPROC glDeleteVertexArrays = NULL; + +// NOTE: Instancing functionality could also be available through extension +static PFNGLDRAWARRAYSINSTANCEDEXTPROC glDrawArraysInstanced = NULL; +static PFNGLDRAWELEMENTSINSTANCEDEXTPROC glDrawElementsInstanced = NULL; +static PFNGLVERTEXATTRIBDIVISOREXTPROC glVertexAttribDivisor = NULL; +#endif + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +static void rlLoadShaderDefault(void); // Load default shader +static void rlUnloadShaderDefault(void); // Unload default shader +#if RLGL_SHOW_GL_DETAILS_INFO +static const char *rlGetCompressedFormatName(int format); // Get compressed format official GL identifier name +#endif +#endif + +static int rlGetPixelDataSize(int width, int height, int format); // Get pixel data size in bytes (image or texture) + +static Matrix rlMatrixIdentity(void); // Get identity matrix +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Auxiliar matrix math functions +typedef struct rl_float16 { float v[16]; } rl_float16; +static rl_float16 rlMatrixToFloatV(Matrix mat); // Get float array of matrix data +#define rlMatrixToFloat(mat) (rlMatrixToFloatV(mat).v) // Get float vector for Matrix +static Matrix rlMatrixMultiply(Matrix left, Matrix right); // Multiply two matrices +static Matrix rlMatrixTranspose(Matrix mat); // Transposes provided matrix +static Matrix rlMatrixInvert(Matrix mat); // Invert provided matrix +#endif + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Matrix operations +//---------------------------------------------------------------------------------- + +#if defined(GRAPHICS_API_OPENGL_11) +// Fallback to OpenGL 1.1 function calls +//--------------------------------------- +void rlMatrixMode(int mode) +{ + switch (mode) + { + case RL_PROJECTION: glMatrixMode(GL_PROJECTION); break; + case RL_MODELVIEW: glMatrixMode(GL_MODELVIEW); break; + case RL_TEXTURE: glMatrixMode(GL_TEXTURE); break; + default: break; + } +} + +void rlFrustum(double left, double right, double bottom, double top, double znear, double zfar) +{ + glFrustum(left, right, bottom, top, znear, zfar); +} + +void rlOrtho(double left, double right, double bottom, double top, double znear, double zfar) +{ + glOrtho(left, right, bottom, top, znear, zfar); +} + +void rlPushMatrix(void) { glPushMatrix(); } +void rlPopMatrix(void) { glPopMatrix(); } +void rlLoadIdentity(void) { glLoadIdentity(); } +void rlTranslatef(float x, float y, float z) { glTranslatef(x, y, z); } +void rlRotatef(float angle, float x, float y, float z) { glRotatef(angle, x, y, z); } +void rlScalef(float x, float y, float z) { glScalef(x, y, z); } +void rlMultMatrixf(const float *matf) { glMultMatrixf(matf); } +#endif +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Choose the current matrix to be transformed +void rlMatrixMode(int mode) +{ + if (mode == RL_PROJECTION) RLGL.State.currentMatrix = &RLGL.State.projection; + else if (mode == RL_MODELVIEW) RLGL.State.currentMatrix = &RLGL.State.modelview; + //else if (mode == RL_TEXTURE) // Not supported + + RLGL.State.currentMatrixMode = mode; +} + +// Push the current matrix into RLGL.State.stack +void rlPushMatrix(void) +{ + if (RLGL.State.stackCounter >= RL_MAX_MATRIX_STACK_SIZE) TRACELOG(RL_LOG_ERROR, "RLGL: Matrix stack overflow (RL_MAX_MATRIX_STACK_SIZE)"); + + if (RLGL.State.currentMatrixMode == RL_MODELVIEW) + { + RLGL.State.transformRequired = true; + RLGL.State.currentMatrix = &RLGL.State.transform; + } + + RLGL.State.stack[RLGL.State.stackCounter] = *RLGL.State.currentMatrix; + RLGL.State.stackCounter++; +} + +// Pop latest inserted matrix from RLGL.State.stack +void rlPopMatrix(void) +{ + if (RLGL.State.stackCounter > 0) + { + Matrix mat = RLGL.State.stack[RLGL.State.stackCounter - 1]; + *RLGL.State.currentMatrix = mat; + RLGL.State.stackCounter--; + } + + if ((RLGL.State.stackCounter == 0) && (RLGL.State.currentMatrixMode == RL_MODELVIEW)) + { + RLGL.State.currentMatrix = &RLGL.State.modelview; + RLGL.State.transformRequired = false; + } +} + +// Reset current matrix to identity matrix +void rlLoadIdentity(void) +{ + *RLGL.State.currentMatrix = rlMatrixIdentity(); +} + +// Multiply the current matrix by a translation matrix +void rlTranslatef(float x, float y, float z) +{ + Matrix matTranslation = rlMatrixIdentity(); + + // Set translation component of matrix + matTranslation.m12 = x; + matTranslation.m13 = y; + matTranslation.m14 = z; + + // NOTE: Transposing matrix by multiplication order + *RLGL.State.currentMatrix = rlMatrixMultiply(matTranslation, *RLGL.State.currentMatrix); +} + +// Multiply the current matrix by a rotation matrix +// NOTE: The provided angle must be in degrees +void rlRotatef(float angle, float x, float y, float z) +{ + Matrix matRotation = rlMatrixIdentity(); + + // Axis vector (x, y, z) normalization + float lengthSquared = x*x + y*y + z*z; + if ((lengthSquared != 1.0f) && (lengthSquared != 0.0f)) + { + float inverseLength = 1.0f/sqrtf(lengthSquared); + x *= inverseLength; + y *= inverseLength; + z *= inverseLength; + } + + // Rotation matrix generation + float sinres = sinf(DEG2RAD*angle); + float cosres = cosf(DEG2RAD*angle); + float t = 1.0f - cosres; + + matRotation.m0 = x*x*t + cosres; + matRotation.m1 = y*x*t + z*sinres; + matRotation.m2 = z*x*t - y*sinres; + matRotation.m3 = 0.0f; + + matRotation.m4 = x*y*t - z*sinres; + matRotation.m5 = y*y*t + cosres; + matRotation.m6 = z*y*t + x*sinres; + matRotation.m7 = 0.0f; + + matRotation.m8 = x*z*t + y*sinres; + matRotation.m9 = y*z*t - x*sinres; + matRotation.m10 = z*z*t + cosres; + matRotation.m11 = 0.0f; + + matRotation.m12 = 0.0f; + matRotation.m13 = 0.0f; + matRotation.m14 = 0.0f; + matRotation.m15 = 1.0f; + + // NOTE: Transposing matrix by multiplication order + *RLGL.State.currentMatrix = rlMatrixMultiply(matRotation, *RLGL.State.currentMatrix); +} + +// Multiply the current matrix by a scaling matrix +void rlScalef(float x, float y, float z) +{ + Matrix matScale = rlMatrixIdentity(); + + // Set scale component of matrix + matScale.m0 = x; + matScale.m5 = y; + matScale.m10 = z; + + // NOTE: Transposing matrix by multiplication order + *RLGL.State.currentMatrix = rlMatrixMultiply(matScale, *RLGL.State.currentMatrix); +} + +// Multiply the current matrix by another matrix +void rlMultMatrixf(const float *matf) +{ + // Matrix creation from array + // Conversion from column-major to row-major memory order + Matrix mat = { matf[0], matf[4], matf[8], matf[12], + matf[1], matf[5], matf[9], matf[13], + matf[2], matf[6], matf[10], matf[14], + matf[3], matf[7], matf[11], matf[15] }; + + *RLGL.State.currentMatrix = rlMatrixMultiply(mat, *RLGL.State.currentMatrix); +} + +// Multiply the current matrix by a perspective matrix generated by parameters +void rlFrustum(double left, double right, double bottom, double top, double znear, double zfar) +{ + Matrix matFrustum = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(zfar - znear); + + matFrustum.m0 = ((float) znear*2.0f)/rl; + matFrustum.m1 = 0.0f; + matFrustum.m2 = 0.0f; + matFrustum.m3 = 0.0f; + + matFrustum.m4 = 0.0f; + matFrustum.m5 = ((float) znear*2.0f)/tb; + matFrustum.m6 = 0.0f; + matFrustum.m7 = 0.0f; + + matFrustum.m8 = ((float)right + (float)left)/rl; + matFrustum.m9 = ((float)top + (float)bottom)/tb; + matFrustum.m10 = -((float)zfar + (float)znear)/fn; + matFrustum.m11 = -1.0f; + + matFrustum.m12 = 0.0f; + matFrustum.m13 = 0.0f; + matFrustum.m14 = -((float)zfar*(float)znear*2.0f)/fn; + matFrustum.m15 = 0.0f; + + *RLGL.State.currentMatrix = rlMatrixMultiply(*RLGL.State.currentMatrix, matFrustum); +} + +// Multiply the current matrix by an orthographic matrix generated by parameters +void rlOrtho(double left, double right, double bottom, double top, double znear, double zfar) +{ + // NOTE: If left-right and top-botton values are equal it could create a division by zero, + // response to it is platform/compiler dependant + Matrix matOrtho = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(zfar - znear); + + matOrtho.m0 = 2.0f/rl; + matOrtho.m1 = 0.0f; + matOrtho.m2 = 0.0f; + matOrtho.m3 = 0.0f; + matOrtho.m4 = 0.0f; + matOrtho.m5 = 2.0f/tb; + matOrtho.m6 = 0.0f; + matOrtho.m7 = 0.0f; + matOrtho.m8 = 0.0f; + matOrtho.m9 = 0.0f; + matOrtho.m10 = -2.0f/fn; + matOrtho.m11 = 0.0f; + matOrtho.m12 = -((float)left + (float)right)/rl; + matOrtho.m13 = -((float)top + (float)bottom)/tb; + matOrtho.m14 = -((float)zfar + (float)znear)/fn; + matOrtho.m15 = 1.0f; + + *RLGL.State.currentMatrix = rlMatrixMultiply(*RLGL.State.currentMatrix, matOrtho); +} +#endif + +// Set the viewport area (transformation from normalized device coordinates to window coordinates) +void rlViewport(int x, int y, int width, int height) +{ + glViewport(x, y, width, height); +} + +// Set clip planes distances +void rlSetClipPlanes(double nearPlane, double farPlane) +{ + rlCullDistanceNear = nearPlane; + rlCullDistanceFar = farPlane; +} + +// Get cull plane distance near +double rlGetCullDistanceNear(void) +{ + return rlCullDistanceNear; +} + +// Get cull plane distance far +double rlGetCullDistanceFar(void) +{ + return rlCullDistanceFar; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Vertex level operations +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_11) +// Fallback to OpenGL 1.1 function calls +//--------------------------------------- +void rlBegin(int mode) +{ + switch (mode) + { + case RL_LINES: glBegin(GL_LINES); break; + case RL_TRIANGLES: glBegin(GL_TRIANGLES); break; + case RL_QUADS: glBegin(GL_QUADS); break; + default: break; + } +} + +void rlEnd(void) { glEnd(); } +void rlVertex2i(int x, int y) { glVertex2i(x, y); } +void rlVertex2f(float x, float y) { glVertex2f(x, y); } +void rlVertex3f(float x, float y, float z) { glVertex3f(x, y, z); } +void rlTexCoord2f(float x, float y) { glTexCoord2f(x, y); } +void rlNormal3f(float x, float y, float z) { glNormal3f(x, y, z); } +void rlColor4ub(unsigned char r, unsigned char g, unsigned char b, unsigned char a) { glColor4ub(r, g, b, a); } +void rlColor3f(float x, float y, float z) { glColor3f(x, y, z); } +void rlColor4f(float x, float y, float z, float w) { glColor4f(x, y, z, w); } +#endif +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Initialize drawing mode (how to organize vertex) +void rlBegin(int mode) +{ + // Draw mode can be RL_LINES, RL_TRIANGLES and RL_QUADS + // NOTE: In all three cases, vertex are accumulated over default internal vertex buffer + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode != mode) + { + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount > 0) + { + // Make sure current RLGL.currentBatch->draws[i].vertexCount is aligned a multiple of 4, + // that way, following QUADS drawing will keep aligned with index processing + // It implies adding some extra alignment vertex at the end of the draw, + // those vertex are not processed but they are considered as an additional offset + // for the next set of vertex to be drawn + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4); + else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_TRIANGLES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? 1 : (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4))); + else RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = 0; + + if (!rlCheckRenderBatchLimit(RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment)) + { + RLGL.State.vertexCounter += RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment; + RLGL.currentBatch->drawCounter++; + } + } + + if (RLGL.currentBatch->drawCounter >= RL_DEFAULT_BATCH_DRAWCALLS) rlDrawRenderBatch(RLGL.currentBatch); + + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode = mode; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId = RLGL.State.currentTextureId; + RLGL.State.currentTextureId = RLGL.State.defaultTextureId; + } +} + +// Finish vertex providing +void rlEnd(void) +{ + // NOTE: Depth increment is dependant on rlOrtho(): z-near and z-far values, + // as well as depth buffer bit-depth (16bit or 24bit or 32bit) + // Correct increment formula would be: depthInc = (zfar - znear)/pow(2, bits) + RLGL.currentBatch->currentDepth += (1.0f/20000.0f); +} + +// Define one vertex (position) +// NOTE: Vertex position data is the basic information required for drawing +void rlVertex3f(float x, float y, float z) +{ + float tx = x; + float ty = y; + float tz = z; + + // Transform provided vector if required + if (RLGL.State.transformRequired) + { + tx = RLGL.State.transform.m0*x + RLGL.State.transform.m4*y + RLGL.State.transform.m8*z + RLGL.State.transform.m12; + ty = RLGL.State.transform.m1*x + RLGL.State.transform.m5*y + RLGL.State.transform.m9*z + RLGL.State.transform.m13; + tz = RLGL.State.transform.m2*x + RLGL.State.transform.m6*y + RLGL.State.transform.m10*z + RLGL.State.transform.m14; + } + + // WARNING: Be careful with primitives breaking when launching a new batch! + // RL_LINES comes in pairs, RL_TRIANGLES come in groups of 3 vertices and RL_QUADS come in groups of 4 vertices + // Checking current draw.mode when a new vertex is required and finish the batch only if the draw.mode draw.vertexCount is %2, %3 or %4 + if (RLGL.State.vertexCounter > (RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4 - 4)) + { + if ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) && + (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%2 == 0)) + { + // Reached the maximum number of vertices for RL_LINES drawing + // Launch a draw call but keep current state for next vertices comming + // NOTE: Adding +1 vertex to the check for some safety + rlCheckRenderBatchLimit(2 + 1); + } + else if ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_TRIANGLES) && + (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%3 == 0)) + { + rlCheckRenderBatchLimit(3 + 1); + } + else if ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_QUADS) && + (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4 == 0)) + { + rlCheckRenderBatchLimit(4 + 1); + } + } + + // Add vertices + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].vertices[3*RLGL.State.vertexCounter] = tx; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].vertices[3*RLGL.State.vertexCounter + 1] = ty; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].vertices[3*RLGL.State.vertexCounter + 2] = tz; + + // Add current texcoord + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].texcoords[2*RLGL.State.vertexCounter] = RLGL.State.texcoordx; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].texcoords[2*RLGL.State.vertexCounter + 1] = RLGL.State.texcoordy; + + // Add current normal + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].normals[3*RLGL.State.vertexCounter] = RLGL.State.normalx; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].normals[3*RLGL.State.vertexCounter + 1] = RLGL.State.normaly; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].normals[3*RLGL.State.vertexCounter + 2] = RLGL.State.normalz; + + // Add current color + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter] = RLGL.State.colorr; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter + 1] = RLGL.State.colorg; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter + 2] = RLGL.State.colorb; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter + 3] = RLGL.State.colora; + + RLGL.State.vertexCounter++; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount++; +} + +// Define one vertex (position) +void rlVertex2f(float x, float y) +{ + rlVertex3f(x, y, RLGL.currentBatch->currentDepth); +} + +// Define one vertex (position) +void rlVertex2i(int x, int y) +{ + rlVertex3f((float)x, (float)y, RLGL.currentBatch->currentDepth); +} + +// Define one vertex (texture coordinate) +// NOTE: Texture coordinates are limited to QUADS only +void rlTexCoord2f(float x, float y) +{ + RLGL.State.texcoordx = x; + RLGL.State.texcoordy = y; +} + +// Define one vertex (normal) +// NOTE: Normals limited to TRIANGLES only? +void rlNormal3f(float x, float y, float z) +{ + float normalx = x; + float normaly = y; + float normalz = z; + if (RLGL.State.transformRequired) + { + normalx = RLGL.State.transform.m0*x + RLGL.State.transform.m4*y + RLGL.State.transform.m8*z; + normaly = RLGL.State.transform.m1*x + RLGL.State.transform.m5*y + RLGL.State.transform.m9*z; + normalz = RLGL.State.transform.m2*x + RLGL.State.transform.m6*y + RLGL.State.transform.m10*z; + } + float length = sqrtf(normalx*normalx + normaly*normaly + normalz*normalz); + if (length != 0.0f) + { + float ilength = 1.0f/length; + normalx *= ilength; + normaly *= ilength; + normalz *= ilength; + } + RLGL.State.normalx = normalx; + RLGL.State.normaly = normaly; + RLGL.State.normalz = normalz; +} + +// Define one vertex (color) +void rlColor4ub(unsigned char x, unsigned char y, unsigned char z, unsigned char w) +{ + RLGL.State.colorr = x; + RLGL.State.colorg = y; + RLGL.State.colorb = z; + RLGL.State.colora = w; +} + +// Define one vertex (color) +void rlColor4f(float r, float g, float b, float a) +{ + rlColor4ub((unsigned char)(r*255), (unsigned char)(g*255), (unsigned char)(b*255), (unsigned char)(a*255)); +} + +// Define one vertex (color) +void rlColor3f(float x, float y, float z) +{ + rlColor4ub((unsigned char)(x*255), (unsigned char)(y*255), (unsigned char)(z*255), 255); +} + +#endif + +//-------------------------------------------------------------------------------------- +// Module Functions Definition - OpenGL style functions (common to 1.1, 3.3+, ES2) +//-------------------------------------------------------------------------------------- + +// Set current texture to use +void rlSetTexture(unsigned int id) +{ + if (id == 0) + { +#if defined(GRAPHICS_API_OPENGL_11) + rlDisableTexture(); +#else + // NOTE: If quads batch limit is reached, force a draw call and next batch starts + if (RLGL.State.vertexCounter >= + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4) + { + rlDrawRenderBatch(RLGL.currentBatch); + } + RLGL.State.currentTextureId = RLGL.State.defaultTextureId; +#endif + } + else + { +#if defined(GRAPHICS_API_OPENGL_11) + rlEnableTexture(id); +#else + RLGL.State.currentTextureId = id; + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId != id) + { + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount > 0) + { + // Make sure current RLGL.currentBatch->draws[i].vertexCount is aligned a multiple of 4, + // that way, following QUADS drawing will keep aligned with index processing + // It implies adding some extra alignment vertex at the end of the draw, + // those vertex are not processed but they are considered as an additional offset + // for the next set of vertex to be drawn + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4); + else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_TRIANGLES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? 1 : (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4))); + else RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = 0; + + if (!rlCheckRenderBatchLimit(RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment)) + { + RLGL.State.vertexCounter += RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment; + + RLGL.currentBatch->drawCounter++; + + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode = RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 2].mode; + + } + } + + if (RLGL.currentBatch->drawCounter >= RL_DEFAULT_BATCH_DRAWCALLS) rlDrawRenderBatch(RLGL.currentBatch); + + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId = id; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount = 0; + } +#endif + } +} + +// Select and active a texture slot +void rlActiveTextureSlot(int slot) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glActiveTexture(GL_TEXTURE0 + slot); +#endif +} + +// Enable texture +void rlEnableTexture(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_11) + glEnable(GL_TEXTURE_2D); +#endif + glBindTexture(GL_TEXTURE_2D, id); +} + +// Disable texture +void rlDisableTexture(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) + glDisable(GL_TEXTURE_2D); +#endif + glBindTexture(GL_TEXTURE_2D, 0); +} + +// Enable texture cubemap +void rlEnableTextureCubemap(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindTexture(GL_TEXTURE_CUBE_MAP, id); +#endif +} + +// Disable texture cubemap +void rlDisableTextureCubemap(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindTexture(GL_TEXTURE_CUBE_MAP, 0); +#endif +} + +// Set texture parameters (wrap mode/filter mode) +void rlTextureParameters(unsigned int id, int param, int value) +{ + glBindTexture(GL_TEXTURE_2D, id); + + switch (param) + { + case RL_TEXTURE_WRAP_S: + case RL_TEXTURE_WRAP_T: + { + if (value == RL_TEXTURE_WRAP_MIRROR_CLAMP) + { +#if !defined(GRAPHICS_API_OPENGL_11) + if (RLGL.ExtSupported.texMirrorClamp) glTexParameteri(GL_TEXTURE_2D, param, value); + else TRACELOG(RL_LOG_WARNING, "GL: Clamp mirror wrap mode not supported (GL_MIRROR_CLAMP_EXT)"); +#endif + } + else glTexParameteri(GL_TEXTURE_2D, param, value); + } break; + case RL_TEXTURE_MAG_FILTER: + case RL_TEXTURE_MIN_FILTER: glTexParameteri(GL_TEXTURE_2D, param, value); break; + case RL_TEXTURE_FILTER_ANISOTROPIC: + { +#if !defined(GRAPHICS_API_OPENGL_11) + // Reset anisotropy filter, in case it was set + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f); + + if (value <= RLGL.ExtSupported.maxAnisotropyLevel) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)value); + else if (RLGL.ExtSupported.maxAnisotropyLevel > 0.0f) + { + TRACELOG(RL_LOG_WARNING, "GL: Maximum anisotropic filter level supported is %iX", id, (int)RLGL.ExtSupported.maxAnisotropyLevel); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)value); + } + else TRACELOG(RL_LOG_WARNING, "GL: Anisotropic filtering not supported"); +#endif + } break; +#if defined(GRAPHICS_API_OPENGL_33) + case RL_TEXTURE_MIPMAP_BIAS_RATIO: glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_LOD_BIAS, value/100.0f); +#endif + default: break; + } + + glBindTexture(GL_TEXTURE_2D, 0); +} + +// Set cubemap parameters (wrap mode/filter mode) +void rlCubemapParameters(unsigned int id, int param, int value) +{ +#if !defined(GRAPHICS_API_OPENGL_11) + glBindTexture(GL_TEXTURE_CUBE_MAP, id); + + // Reset anisotropy filter, in case it was set + glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.0f); + + switch (param) + { + case RL_TEXTURE_WRAP_S: + case RL_TEXTURE_WRAP_T: + { + if (value == RL_TEXTURE_WRAP_MIRROR_CLAMP) + { + if (RLGL.ExtSupported.texMirrorClamp) glTexParameteri(GL_TEXTURE_CUBE_MAP, param, value); + else TRACELOG(RL_LOG_WARNING, "GL: Clamp mirror wrap mode not supported (GL_MIRROR_CLAMP_EXT)"); + } + else glTexParameteri(GL_TEXTURE_CUBE_MAP, param, value); + } break; + case RL_TEXTURE_MAG_FILTER: + case RL_TEXTURE_MIN_FILTER: glTexParameteri(GL_TEXTURE_CUBE_MAP, param, value); break; + case RL_TEXTURE_FILTER_ANISOTROPIC: + { + if (value <= RLGL.ExtSupported.maxAnisotropyLevel) glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)value); + else if (RLGL.ExtSupported.maxAnisotropyLevel > 0.0f) + { + TRACELOG(RL_LOG_WARNING, "GL: Maximum anisotropic filter level supported is %iX", id, (int)RLGL.ExtSupported.maxAnisotropyLevel); + glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)value); + } + else TRACELOG(RL_LOG_WARNING, "GL: Anisotropic filtering not supported"); + } break; +#if defined(GRAPHICS_API_OPENGL_33) + case RL_TEXTURE_MIPMAP_BIAS_RATIO: glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_LOD_BIAS, value/100.0f); +#endif + default: break; + } + + glBindTexture(GL_TEXTURE_CUBE_MAP, 0); +#endif +} + +// Enable shader program +void rlEnableShader(unsigned int id) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glUseProgram(id); +#endif +} + +// Disable shader program +void rlDisableShader(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glUseProgram(0); +#endif +} + +// Enable rendering to texture (fbo) +void rlEnableFramebuffer(unsigned int id) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glBindFramebuffer(GL_FRAMEBUFFER, id); +#endif +} + +// return the active render texture (fbo) +unsigned int rlGetActiveFramebuffer(void) +{ + GLint fboId = 0; +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES3)) + glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &fboId); +#endif + return fboId; +} + +// Disable rendering to texture +void rlDisableFramebuffer(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glBindFramebuffer(GL_FRAMEBUFFER, 0); +#endif +} + +// Blit active framebuffer to main framebuffer +void rlBlitFramebuffer(int srcX, int srcY, int srcWidth, int srcHeight, int dstX, int dstY, int dstWidth, int dstHeight, int bufferMask) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES3)) + glBlitFramebuffer(srcX, srcY, srcWidth, srcHeight, dstX, dstY, dstWidth, dstHeight, bufferMask, GL_NEAREST); +#endif +} + +// Bind framebuffer object (fbo) +void rlBindFramebuffer(unsigned int target, unsigned int framebuffer) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glBindFramebuffer(target, framebuffer); +#endif +} + +// Activate multiple draw color buffers +// NOTE: One color buffer is always active by default +void rlActiveDrawBuffers(int count) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES3)) + // NOTE: Maximum number of draw buffers supported is implementation dependant, + // it can be queried with glGet*() but it must be at least 8 + //GLint maxDrawBuffers = 0; + //glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers); + + if (count > 0) + { + if (count > 8) TRACELOG(RL_LOG_WARNING, "GL: Max color buffers limited to 8"); + else + { + unsigned int buffers[8] = { + GL_COLOR_ATTACHMENT0, + GL_COLOR_ATTACHMENT1, + GL_COLOR_ATTACHMENT2, + GL_COLOR_ATTACHMENT3, + GL_COLOR_ATTACHMENT4, + GL_COLOR_ATTACHMENT5, + GL_COLOR_ATTACHMENT6, + GL_COLOR_ATTACHMENT7, + }; + + glDrawBuffers(count, buffers); + } + } + else TRACELOG(RL_LOG_WARNING, "GL: One color buffer active by default"); +#endif +} + +//---------------------------------------------------------------------------------- +// General render state configuration +//---------------------------------------------------------------------------------- + +// Enable color blending +void rlEnableColorBlend(void) { glEnable(GL_BLEND); } + +// Disable color blending +void rlDisableColorBlend(void) { glDisable(GL_BLEND); } + +// Enable depth test +void rlEnableDepthTest(void) { glEnable(GL_DEPTH_TEST); } + +// Disable depth test +void rlDisableDepthTest(void) { glDisable(GL_DEPTH_TEST); } + +// Enable depth write +void rlEnableDepthMask(void) { glDepthMask(GL_TRUE); } + +// Disable depth write +void rlDisableDepthMask(void) { glDepthMask(GL_FALSE); } + +// Enable backface culling +void rlEnableBackfaceCulling(void) { glEnable(GL_CULL_FACE); } + +// Disable backface culling +void rlDisableBackfaceCulling(void) { glDisable(GL_CULL_FACE); } + +// Set color mask active for screen read/draw +void rlColorMask(bool r, bool g, bool b, bool a) { glColorMask(r, g, b, a); } + +// Set face culling mode +void rlSetCullFace(int mode) +{ + switch (mode) + { + case RL_CULL_FACE_BACK: glCullFace(GL_BACK); break; + case RL_CULL_FACE_FRONT: glCullFace(GL_FRONT); break; + default: break; + } +} + +// Enable scissor test +void rlEnableScissorTest(void) { glEnable(GL_SCISSOR_TEST); } + +// Disable scissor test +void rlDisableScissorTest(void) { glDisable(GL_SCISSOR_TEST); } + +// Scissor test +void rlScissor(int x, int y, int width, int height) { glScissor(x, y, width, height); } + +// Enable wire mode +void rlEnableWireMode(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); +#endif +} + +// Disable wire mode +void rlDisableWireMode(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); +#endif +} + +// Enable point mode +void rlEnablePointMode(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_POINT); + glEnable(GL_PROGRAM_POINT_SIZE); +#endif +} + +// Disable point mode +void rlDisablePointMode(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); +#endif +} + +// Set the line drawing width +void rlSetLineWidth(float width) { glLineWidth(width); } + +// Get the line drawing width +float rlGetLineWidth(void) +{ + float width = 0; + glGetFloatv(GL_LINE_WIDTH, &width); + return width; +} + +// Set the point drawing size +void rlSetPointSize(float size) +{ +#if defined(GRAPHICS_API_OPENGL_11) + glPointSize(size); +#endif +} + +// Get the point drawing size +float rlGetPointSize(void) +{ + float size = 1; +#if defined(GRAPHICS_API_OPENGL_11) + glGetFloatv(GL_POINT_SIZE, &size); +#endif + return size; + +} + +// Enable line aliasing +void rlEnableSmoothLines(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_11) + glEnable(GL_LINE_SMOOTH); +#endif +} + +// Disable line aliasing +void rlDisableSmoothLines(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_11) + glDisable(GL_LINE_SMOOTH); +#endif +} + +// Enable stereo rendering +void rlEnableStereoRender(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + RLGL.State.stereoRender = true; +#endif +} + +// Disable stereo rendering +void rlDisableStereoRender(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + RLGL.State.stereoRender = false; +#endif +} + +// Check if stereo render is enabled +bool rlIsStereoRenderEnabled(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + return RLGL.State.stereoRender; +#else + return false; +#endif +} + +// Clear color buffer with color +void rlClearColor(unsigned char r, unsigned char g, unsigned char b, unsigned char a) +{ + // Color values clamp to 0.0f(0) and 1.0f(255) + float cr = (float)r/255; + float cg = (float)g/255; + float cb = (float)b/255; + float ca = (float)a/255; + + glClearColor(cr, cg, cb, ca); +} + +// Clear used screen buffers (color and depth) +void rlClearScreenBuffers(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear used buffers: Color and Depth (Depth is used for 3D) + //glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); // Stencil buffer not used... +} + +// Check and log OpenGL error codes +void rlCheckErrors(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + int check = 1; + while (check) + { + const GLenum err = glGetError(); + switch (err) + { + case GL_NO_ERROR: check = 0; break; + case 0x0500: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_ENUM"); break; + case 0x0501: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_VALUE"); break; + case 0x0502: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_OPERATION"); break; + case 0x0503: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_STACK_OVERFLOW"); break; + case 0x0504: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_STACK_UNDERFLOW"); break; + case 0x0505: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_OUT_OF_MEMORY"); break; + case 0x0506: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_FRAMEBUFFER_OPERATION"); break; + default: TRACELOG(RL_LOG_WARNING, "GL: Error detected: Unknown error code: %x", err); break; + } + } +#endif +} + +// Set blend mode +void rlSetBlendMode(int mode) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((RLGL.State.currentBlendMode != mode) || ((mode == RL_BLEND_CUSTOM || mode == RL_BLEND_CUSTOM_SEPARATE) && RLGL.State.glCustomBlendModeModified)) + { + rlDrawRenderBatch(RLGL.currentBatch); + + switch (mode) + { + case RL_BLEND_ALPHA: glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_ADDITIVE: glBlendFunc(GL_SRC_ALPHA, GL_ONE); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_MULTIPLIED: glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_ADD_COLORS: glBlendFunc(GL_ONE, GL_ONE); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_SUBTRACT_COLORS: glBlendFunc(GL_ONE, GL_ONE); glBlendEquation(GL_FUNC_SUBTRACT); break; + case RL_BLEND_ALPHA_PREMULTIPLY: glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_CUSTOM: + { + // NOTE: Using GL blend src/dst factors and GL equation configured with rlSetBlendFactors() + glBlendFunc(RLGL.State.glBlendSrcFactor, RLGL.State.glBlendDstFactor); glBlendEquation(RLGL.State.glBlendEquation); + } break; + case RL_BLEND_CUSTOM_SEPARATE: + { + // NOTE: Using GL blend src/dst factors and GL equation configured with rlSetBlendFactorsSeparate() + glBlendFuncSeparate(RLGL.State.glBlendSrcFactorRGB, RLGL.State.glBlendDestFactorRGB, RLGL.State.glBlendSrcFactorAlpha, RLGL.State.glBlendDestFactorAlpha); + glBlendEquationSeparate(RLGL.State.glBlendEquationRGB, RLGL.State.glBlendEquationAlpha); + } break; + default: break; + } + + RLGL.State.currentBlendMode = mode; + RLGL.State.glCustomBlendModeModified = false; + } +#endif +} + +// Set blending mode factor and equation +void rlSetBlendFactors(int glSrcFactor, int glDstFactor, int glEquation) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((RLGL.State.glBlendSrcFactor != glSrcFactor) || + (RLGL.State.glBlendDstFactor != glDstFactor) || + (RLGL.State.glBlendEquation != glEquation)) + { + RLGL.State.glBlendSrcFactor = glSrcFactor; + RLGL.State.glBlendDstFactor = glDstFactor; + RLGL.State.glBlendEquation = glEquation; + + RLGL.State.glCustomBlendModeModified = true; + } +#endif +} + +// Set blending mode factor and equation separately for RGB and alpha +void rlSetBlendFactorsSeparate(int glSrcRGB, int glDstRGB, int glSrcAlpha, int glDstAlpha, int glEqRGB, int glEqAlpha) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((RLGL.State.glBlendSrcFactorRGB != glSrcRGB) || + (RLGL.State.glBlendDestFactorRGB != glDstRGB) || + (RLGL.State.glBlendSrcFactorAlpha != glSrcAlpha) || + (RLGL.State.glBlendDestFactorAlpha != glDstAlpha) || + (RLGL.State.glBlendEquationRGB != glEqRGB) || + (RLGL.State.glBlendEquationAlpha != glEqAlpha)) + { + RLGL.State.glBlendSrcFactorRGB = glSrcRGB; + RLGL.State.glBlendDestFactorRGB = glDstRGB; + RLGL.State.glBlendSrcFactorAlpha = glSrcAlpha; + RLGL.State.glBlendDestFactorAlpha = glDstAlpha; + RLGL.State.glBlendEquationRGB = glEqRGB; + RLGL.State.glBlendEquationAlpha = glEqAlpha; + + RLGL.State.glCustomBlendModeModified = true; + } +#endif +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - OpenGL Debug +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_43) && RLGL_ENABLE_OPENGL_DEBUG_CONTEXT +static void GLAPIENTRY rlDebugMessageCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam) +{ + // Ignore non-significant error/warning codes (NVidia drivers) + // NOTE: Here there are the details with a sample output: + // - #131169 - Framebuffer detailed info: The driver allocated storage for renderbuffer 2. (severity: low) + // - #131185 - Buffer detailed info: Buffer object 1 (bound to GL_ELEMENT_ARRAY_BUFFER_ARB, usage hint is GL_ENUM_88e4) + // will use VIDEO memory as the source for buffer object operations. (severity: low) + // - #131218 - Program/shader state performance warning: Vertex shader in program 7 is being recompiled based on GL state. (severity: medium) + // - #131204 - Texture state usage warning: The texture object (0) bound to texture image unit 0 does not have + // a defined base level and cannot be used for texture mapping. (severity: low) + if ((id == 131169) || (id == 131185) || (id == 131218) || (id == 131204)) return; + + const char *msgSource = NULL; + switch (source) + { + case GL_DEBUG_SOURCE_API: msgSource = "API"; break; + case GL_DEBUG_SOURCE_WINDOW_SYSTEM: msgSource = "WINDOW_SYSTEM"; break; + case GL_DEBUG_SOURCE_SHADER_COMPILER: msgSource = "SHADER_COMPILER"; break; + case GL_DEBUG_SOURCE_THIRD_PARTY: msgSource = "THIRD_PARTY"; break; + case GL_DEBUG_SOURCE_APPLICATION: msgSource = "APPLICATION"; break; + case GL_DEBUG_SOURCE_OTHER: msgSource = "OTHER"; break; + default: break; + } + + const char *msgType = NULL; + switch (type) + { + case GL_DEBUG_TYPE_ERROR: msgType = "ERROR"; break; + case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: msgType = "DEPRECATED_BEHAVIOR"; break; + case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: msgType = "UNDEFINED_BEHAVIOR"; break; + case GL_DEBUG_TYPE_PORTABILITY: msgType = "PORTABILITY"; break; + case GL_DEBUG_TYPE_PERFORMANCE: msgType = "PERFORMANCE"; break; + case GL_DEBUG_TYPE_MARKER: msgType = "MARKER"; break; + case GL_DEBUG_TYPE_PUSH_GROUP: msgType = "PUSH_GROUP"; break; + case GL_DEBUG_TYPE_POP_GROUP: msgType = "POP_GROUP"; break; + case GL_DEBUG_TYPE_OTHER: msgType = "OTHER"; break; + default: break; + } + + const char *msgSeverity = "DEFAULT"; + switch (severity) + { + case GL_DEBUG_SEVERITY_LOW: msgSeverity = "LOW"; break; + case GL_DEBUG_SEVERITY_MEDIUM: msgSeverity = "MEDIUM"; break; + case GL_DEBUG_SEVERITY_HIGH: msgSeverity = "HIGH"; break; + case GL_DEBUG_SEVERITY_NOTIFICATION: msgSeverity = "NOTIFICATION"; break; + default: break; + } + + TRACELOG(RL_LOG_WARNING, "GL: OpenGL debug message: %s", message); + TRACELOG(RL_LOG_WARNING, " > Type: %s", msgType); + TRACELOG(RL_LOG_WARNING, " > Source = %s", msgSource); + TRACELOG(RL_LOG_WARNING, " > Severity = %s", msgSeverity); +} +#endif + +//---------------------------------------------------------------------------------- +// Module Functions Definition - rlgl functionality +//---------------------------------------------------------------------------------- + +// Initialize rlgl: OpenGL extensions, default buffers/shaders/textures, OpenGL states +void rlglInit(int width, int height) +{ + isGpuReady = true; + + // Enable OpenGL debug context if requested (and supported) +#if defined(GRAPHICS_API_OPENGL_43) && RLGL_ENABLE_OPENGL_DEBUG_CONTEXT + if ((glDebugMessageCallback != NULL) && (glDebugMessageControl != NULL)) + { + glDebugMessageCallback(rlDebugMessageCallback, 0); + // glDebugMessageControl(GL_DEBUG_SOURCE_API, GL_DEBUG_TYPE_ERROR, GL_DEBUG_SEVERITY_HIGH, 0, 0, GL_TRUE); + + // Debug context options: + // - GL_DEBUG_OUTPUT - Faster version but not useful for breakpoints + // - GL_DEBUG_OUTPUT_SYNCHRONUS - Callback is in sync with errors, so a breakpoint can be placed on the callback in order to get a stacktrace for the GL error + glEnable(GL_DEBUG_OUTPUT); + glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS); + } +#endif + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Init default white texture + unsigned char pixels[4] = { 255, 255, 255, 255 }; // 1 pixel RGBA (4 bytes) + RLGL.State.defaultTextureId = rlLoadTexture(pixels, 1, 1, RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8, 1); + RLGL.State.currentTextureId = RLGL.State.defaultTextureId; + + if (RLGL.State.defaultTextureId != 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Default texture loaded successfully", RLGL.State.defaultTextureId); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load default texture"); + + // Init default Shader (customized for GL 3.3 and ES2) + // Loaded: RLGL.State.defaultShaderId + RLGL.State.defaultShaderLocs + rlLoadShaderDefault(); + RLGL.State.currentShaderId = RLGL.State.defaultShaderId; + RLGL.State.currentShaderLocs = RLGL.State.defaultShaderLocs; + + // Init default vertex arrays buffers + // Simulate that the default shader has the location RL_SHADER_LOC_VERTEX_NORMAL to bind the normal buffer for the default render batch + RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL] = RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL; + RLGL.defaultBatch = rlLoadRenderBatch(RL_DEFAULT_BATCH_BUFFERS, RL_DEFAULT_BATCH_BUFFER_ELEMENTS); + RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL] = -1; + RLGL.currentBatch = &RLGL.defaultBatch; + + // Init stack matrices (emulating OpenGL 1.1) + for (int i = 0; i < RL_MAX_MATRIX_STACK_SIZE; i++) RLGL.State.stack[i] = rlMatrixIdentity(); + + // Init internal matrices + RLGL.State.transform = rlMatrixIdentity(); + RLGL.State.projection = rlMatrixIdentity(); + RLGL.State.modelview = rlMatrixIdentity(); + RLGL.State.currentMatrix = &RLGL.State.modelview; +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + +#if defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + // Initialize software renderer backend + int result = swInit(width, height); + if (result == 0) + { + TRACELOG(RL_LOG_ERROR, "RLSW: Software renderer initialization failed!"); + exit(-1); + } +#endif + + // Initialize OpenGL default states + //---------------------------------------------------------- + // Init state: Depth test + glDepthFunc(GL_LEQUAL); // Type of depth testing to apply + glDisable(GL_DEPTH_TEST); // Disable depth testing for 2D (only used for 3D) + + // Init state: Blending mode + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Color blending function (how colors are mixed) + glEnable(GL_BLEND); // Enable color blending (required to work with transparencies) + + // Init state: Culling + // NOTE: All shapes/models triangles are drawn CCW + glCullFace(GL_BACK); // Cull the back face (default) + glFrontFace(GL_CCW); // Front face are defined counter clockwise (default) + glEnable(GL_CULL_FACE); // Enable backface culling + +#if defined(GRAPHICS_API_OPENGL_11) + // Init state: Color hints (deprecated in OpenGL 3.0+) + glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Improve quality of color and texture coordinate interpolation + glShadeModel(GL_SMOOTH); // Smooth shading between vertex (vertex colors interpolation) +#endif +#if defined(GRAPHICS_API_OPENGL_33) + // Init state: Cubemap seamless + glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS); // Seamless cubemaps (not supported on OpenGL ES 2.0) +#endif +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Store screen size into global variables + RLGL.State.framebufferWidth = width; + RLGL.State.framebufferHeight = height; +#endif + + // Init state: Color/Depth buffers clear + glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Set clear color (black) + glClearDepth(1.0f); // Set clear depth value (default) + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear color and depth buffers (depth buffer required for 3D) + + TRACELOG(RL_LOG_INFO, "RLGL: Default OpenGL state initialized successfully"); + //---------------------------------------------------------- +} + +// Vertex Buffer Object deinitialization (memory free) +void rlglClose(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlUnloadRenderBatch(RLGL.defaultBatch); + + rlUnloadShaderDefault(); // Unload default shader + + glDeleteTextures(1, &RLGL.State.defaultTextureId); // Unload default texture + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Default texture unloaded successfully", RLGL.State.defaultTextureId); +#endif + +#if defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + swClose(); // Unload sofware renderer resources +#endif + isGpuReady = false; +} + +// Load OpenGL extensions +// NOTE: External loader function must be provided +void rlLoadExtensions(void *loader) +{ +#if defined(GRAPHICS_API_OPENGL_33) // Also defined for GRAPHICS_API_OPENGL_21 + // NOTE: glad is generated and contains only required OpenGL 3.3 Core extensions (and lower versions) + if (gladLoadGL((GLADloadfunc)loader) == 0) TRACELOG(RL_LOG_WARNING, "GLAD: Cannot load OpenGL extensions"); + else TRACELOG(RL_LOG_INFO, "GLAD: OpenGL extensions loaded successfully"); + + // Get number of supported extensions + GLint numExt = 0; + glGetIntegerv(GL_NUM_EXTENSIONS, &numExt); + TRACELOG(RL_LOG_INFO, "GL: Supported extensions count: %i", numExt); + +#if RLGL_SHOW_GL_DETAILS_INFO + // Get supported extensions list + // WARNING: glGetStringi() not available on OpenGL 2.1 + TRACELOG(RL_LOG_INFO, "GL: OpenGL extensions:"); + for (int i = 0; i < numExt; i++) TRACELOG(RL_LOG_INFO, " %s", glGetStringi(GL_EXTENSIONS, i)); +#endif + +#if defined(GRAPHICS_API_OPENGL_21) + // Register supported extensions flags + // Optional OpenGL 2.1 extensions + RLGL.ExtSupported.vao = GLAD_GL_ARB_vertex_array_object; + RLGL.ExtSupported.instancing = (GLAD_GL_EXT_draw_instanced && GLAD_GL_ARB_instanced_arrays); + RLGL.ExtSupported.texNPOT = GLAD_GL_ARB_texture_non_power_of_two; + RLGL.ExtSupported.texFloat32 = GLAD_GL_ARB_texture_float; + RLGL.ExtSupported.texFloat16 = GLAD_GL_ARB_texture_float; + RLGL.ExtSupported.texDepth = GLAD_GL_ARB_depth_texture; + RLGL.ExtSupported.maxDepthBits = 32; + RLGL.ExtSupported.texAnisoFilter = GLAD_GL_EXT_texture_filter_anisotropic; + RLGL.ExtSupported.texMirrorClamp = GLAD_GL_EXT_texture_mirror_clamp; +#else + // Register supported extensions flags + // OpenGL 3.3 extensions supported by default (core) + RLGL.ExtSupported.vao = true; + RLGL.ExtSupported.instancing = true; + RLGL.ExtSupported.texNPOT = true; + RLGL.ExtSupported.texFloat32 = true; + RLGL.ExtSupported.texFloat16 = true; + RLGL.ExtSupported.texDepth = true; + RLGL.ExtSupported.maxDepthBits = 32; + RLGL.ExtSupported.texAnisoFilter = true; + RLGL.ExtSupported.texMirrorClamp = true; +#endif + + // Optional OpenGL 3.3 extensions + RLGL.ExtSupported.texCompASTC = GLAD_GL_KHR_texture_compression_astc_hdr && GLAD_GL_KHR_texture_compression_astc_ldr; + RLGL.ExtSupported.texCompDXT = GLAD_GL_EXT_texture_compression_s3tc; // Texture compression: DXT + RLGL.ExtSupported.texCompETC2 = GLAD_GL_ARB_ES3_compatibility; // Texture compression: ETC2/EAC + #if defined(GRAPHICS_API_OPENGL_43) + RLGL.ExtSupported.computeShader = GLAD_GL_ARB_compute_shader; + RLGL.ExtSupported.ssbo = GLAD_GL_ARB_shader_storage_buffer_object; + #endif + +#endif // GRAPHICS_API_OPENGL_33 + +#if defined(GRAPHICS_API_OPENGL_ES3) + // Register supported extensions flags + // OpenGL ES 3.0 extensions supported by default (or it should be) + RLGL.ExtSupported.vao = true; + RLGL.ExtSupported.instancing = true; + RLGL.ExtSupported.texNPOT = true; + RLGL.ExtSupported.texFloat32 = true; + RLGL.ExtSupported.texFloat16 = true; + RLGL.ExtSupported.texDepth = true; + RLGL.ExtSupported.texDepthWebGL = true; + RLGL.ExtSupported.maxDepthBits = 24; + RLGL.ExtSupported.texAnisoFilter = true; + RLGL.ExtSupported.texMirrorClamp = true; + // TODO: Check for additional OpenGL ES 3.0 supported extensions: + //RLGL.ExtSupported.texCompDXT = true; + //RLGL.ExtSupported.texCompETC1 = true; + //RLGL.ExtSupported.texCompETC2 = true; + //RLGL.ExtSupported.texCompPVRT = true; + //RLGL.ExtSupported.texCompASTC = true; + //RLGL.ExtSupported.maxAnisotropyLevel = true; + //RLGL.ExtSupported.computeShader = true; + //RLGL.ExtSupported.ssbo = true; + +#elif defined(GRAPHICS_API_OPENGL_ES2) + + #if defined(PLATFORM_DESKTOP_GLFW) || defined(PLATFORM_DESKTOP_SDL) + // TODO: Support GLAD loader for OpenGL ES 3.0 + if (gladLoadGLES2((GLADloadfunc)loader) == 0) TRACELOG(RL_LOG_WARNING, "GLAD: Cannot load OpenGL ES2.0 functions"); + else TRACELOG(RL_LOG_INFO, "GLAD: OpenGL ES 2.0 loaded successfully"); + #endif + + // Get supported extensions list + GLint numExt = 0; + const char **extList = (const char **)RL_CALLOC(512, sizeof(const char *)); // Allocate 512 strings pointers (2 KB) + const char *extensions = (const char *)glGetString(GL_EXTENSIONS); // One big const string + + // NOTE: String duplication rquired because glGetString() returns a const string + int extensionsLength = (int)strlen(extensions); // Get extensions string size in bytes + char *extensionsDup = (char *)RL_CALLOC(extensionsLength + 1, sizeof(char)); // Allocate space for copy with additional EOL byte + strncpy(extensionsDup, extensions, extensionsLength); + extList[numExt] = extensionsDup; + + for (int i = 0; i < extensionsLength; i++) + { + if (extensionsDup[i] == ' ') + { + extensionsDup[i] = '\0'; + numExt++; + extList[numExt] = &extensionsDup[i + 1]; + } + } + + TRACELOG(RL_LOG_INFO, "GL: Supported extensions count: %i", numExt); + +#if RLGL_SHOW_GL_DETAILS_INFO + TRACELOG(RL_LOG_INFO, "GL: OpenGL extensions:"); + for (int i = 0; i < numExt; i++) TRACELOG(RL_LOG_INFO, " %s", extList[i]); +#endif + + // Check required extensions + for (int i = 0; i < numExt; i++) + { + // Check VAO support + // NOTE: Only check on OpenGL ES, OpenGL 3.3 has VAO support as core feature + if (strcmp(extList[i], (const char *)"GL_OES_vertex_array_object") == 0) + { + // The extension is supported by our hardware and driver, try to get related functions pointers + // NOTE: emscripten does not support VAOs natively, it uses emulation and it reduces overall performance... + glGenVertexArrays = (PFNGLGENVERTEXARRAYSOESPROC)((rlglLoadProc)loader)("glGenVertexArraysOES"); + glBindVertexArray = (PFNGLBINDVERTEXARRAYOESPROC)((rlglLoadProc)loader)("glBindVertexArrayOES"); + glDeleteVertexArrays = (PFNGLDELETEVERTEXARRAYSOESPROC)((rlglLoadProc)loader)("glDeleteVertexArraysOES"); + //glIsVertexArray = (PFNGLISVERTEXARRAYOESPROC)loader("glIsVertexArrayOES"); // NOTE: Fails in WebGL, omitted + + if ((glGenVertexArrays != NULL) && (glBindVertexArray != NULL) && (glDeleteVertexArrays != NULL)) RLGL.ExtSupported.vao = true; + } + + // Check instanced rendering support + if (strstr(extList[i], (const char *)"instanced_arrays") != NULL) // Broad check for instanced_arrays + { + // Specific check + if (strcmp(extList[i], (const char *)"GL_ANGLE_instanced_arrays") == 0) // ANGLE + { + glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawArraysInstancedANGLE"); + glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawElementsInstancedANGLE"); + glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISOREXTPROC)((rlglLoadProc)loader)("glVertexAttribDivisorANGLE"); + } + else if (strcmp(extList[i], (const char *)"GL_EXT_instanced_arrays") == 0) // EXT + { + glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawArraysInstancedEXT"); + glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawElementsInstancedEXT"); + glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISOREXTPROC)((rlglLoadProc)loader)("glVertexAttribDivisorEXT"); + } + else if (strcmp(extList[i], (const char *)"GL_NV_instanced_arrays") == 0) // NVIDIA GLES + { + glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawArraysInstancedNV"); + glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawElementsInstancedNV"); + glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISOREXTPROC)((rlglLoadProc)loader)("glVertexAttribDivisorNV"); + } + + // The feature will only be marked as supported if the elements from GL_XXX_instanced_arrays are present + if ((glDrawArraysInstanced != NULL) && (glDrawElementsInstanced != NULL) && (glVertexAttribDivisor != NULL)) RLGL.ExtSupported.instancing = true; + } + else if (strstr(extList[i], (const char *)"draw_instanced") != NULL) + { + // GL_ANGLE_draw_instanced doesn't exist + if (strcmp(extList[i], (const char *)"GL_EXT_draw_instanced") == 0) + { + glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawArraysInstancedEXT"); + glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawElementsInstancedEXT"); + } + else if (strcmp(extList[i], (const char *)"GL_NV_draw_instanced") == 0) + { + glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawArraysInstancedNV"); + glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawElementsInstancedNV"); + } + + // But the functions will at least be loaded if only GL_XX_EXT_draw_instanced exist + if ((glDrawArraysInstanced != NULL) && (glDrawElementsInstanced != NULL) && (glVertexAttribDivisor != NULL)) RLGL.ExtSupported.instancing = true; + } + + // Check NPOT textures support + // NOTE: Only check on OpenGL ES, OpenGL 3.3 has NPOT textures full support as core feature + if (strcmp(extList[i], (const char *)"GL_OES_texture_npot") == 0) RLGL.ExtSupported.texNPOT = true; + + // Check texture float support + if (strcmp(extList[i], (const char *)"GL_OES_texture_float") == 0) RLGL.ExtSupported.texFloat32 = true; + if (strcmp(extList[i], (const char *)"GL_OES_texture_half_float") == 0) RLGL.ExtSupported.texFloat16 = true; + + // Check depth texture support + if (strcmp(extList[i], (const char *)"GL_OES_depth_texture") == 0) RLGL.ExtSupported.texDepth = true; + if (strcmp(extList[i], (const char *)"GL_WEBGL_depth_texture") == 0) RLGL.ExtSupported.texDepthWebGL = true; // WebGL requires unsized internal format + if (RLGL.ExtSupported.texDepthWebGL) RLGL.ExtSupported.texDepth = true; + + if (strcmp(extList[i], (const char *)"GL_OES_depth24") == 0) RLGL.ExtSupported.maxDepthBits = 24; // Not available on WebGL + if (strcmp(extList[i], (const char *)"GL_OES_depth32") == 0) RLGL.ExtSupported.maxDepthBits = 32; // Not available on WebGL + + // Check texture compression support: DXT + if ((strcmp(extList[i], (const char *)"GL_EXT_texture_compression_s3tc") == 0) || + (strcmp(extList[i], (const char *)"GL_WEBGL_compressed_texture_s3tc") == 0) || + (strcmp(extList[i], (const char *)"GL_WEBKIT_WEBGL_compressed_texture_s3tc") == 0)) RLGL.ExtSupported.texCompDXT = true; + + // Check texture compression support: ETC1 + if ((strcmp(extList[i], (const char *)"GL_OES_compressed_ETC1_RGB8_texture") == 0) || + (strcmp(extList[i], (const char *)"GL_WEBGL_compressed_texture_etc1") == 0)) RLGL.ExtSupported.texCompETC1 = true; + + // Check texture compression support: ETC2/EAC + if (strcmp(extList[i], (const char *)"GL_ARB_ES3_compatibility") == 0) RLGL.ExtSupported.texCompETC2 = true; + + // Check texture compression support: PVR + if (strcmp(extList[i], (const char *)"GL_IMG_texture_compression_pvrtc") == 0) RLGL.ExtSupported.texCompPVRT = true; + + // Check texture compression support: ASTC + if (strcmp(extList[i], (const char *)"GL_KHR_texture_compression_astc_hdr") == 0) RLGL.ExtSupported.texCompASTC = true; + + // Check anisotropic texture filter support + if (strcmp(extList[i], (const char *)"GL_EXT_texture_filter_anisotropic") == 0) RLGL.ExtSupported.texAnisoFilter = true; + + // Check clamp mirror wrap mode support + if (strcmp(extList[i], (const char *)"GL_EXT_texture_mirror_clamp") == 0) RLGL.ExtSupported.texMirrorClamp = true; + } + + // Free extensions pointers + RL_FREE(extList); + RL_FREE(extensionsDup); // Duplicated string must be deallocated +#endif // GRAPHICS_API_OPENGL_ES2 + + // Check OpenGL information and capabilities + //------------------------------------------------------------------------------ + // Show current OpenGL and GLSL version + TRACELOG(RL_LOG_INFO, "GL: OpenGL device information:"); + TRACELOG(RL_LOG_INFO, " > Vendor: %s", glGetString(GL_VENDOR)); + TRACELOG(RL_LOG_INFO, " > Renderer: %s", glGetString(GL_RENDERER)); + TRACELOG(RL_LOG_INFO, " > Version: %s", glGetString(GL_VERSION)); + TRACELOG(RL_LOG_INFO, " > GLSL: %s", glGetString(GL_SHADING_LANGUAGE_VERSION)); + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.loader = (rlglLoadProc)loader; + + // NOTE: Anisotropy levels capability is an extension + #ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT + #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF + #endif + glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &RLGL.ExtSupported.maxAnisotropyLevel); + +#if RLGL_SHOW_GL_DETAILS_INFO + // Show some OpenGL GPU capabilities + TRACELOG(RL_LOG_INFO, "GL: OpenGL capabilities:"); + GLint capability = 0; + glGetIntegerv(GL_MAX_TEXTURE_SIZE, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_TEXTURE_SIZE: %i", capability); + glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_CUBE_MAP_TEXTURE_SIZE: %i", capability); + glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_TEXTURE_IMAGE_UNITS: %i", capability); + glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_VERTEX_ATTRIBS: %i", capability); + #if !defined(GRAPHICS_API_OPENGL_ES2) + glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_UNIFORM_BLOCK_SIZE: %i", capability); + glGetIntegerv(GL_MAX_DRAW_BUFFERS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_DRAW_BUFFERS: %i", capability); + if (RLGL.ExtSupported.texAnisoFilter) TRACELOG(RL_LOG_INFO, " GL_MAX_TEXTURE_MAX_ANISOTROPY: %.0f", RLGL.ExtSupported.maxAnisotropyLevel); + #endif + glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &capability); + TRACELOG(RL_LOG_INFO, " GL_NUM_COMPRESSED_TEXTURE_FORMATS: %i", capability); + GLint *compFormats = (GLint *)RL_CALLOC(capability, sizeof(GLint)); + glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, compFormats); + for (int i = 0; i < capability; i++) TRACELOG(RL_LOG_INFO, " %s", rlGetCompressedFormatName(compFormats[i])); + RL_FREE(compFormats); + +#if defined(GRAPHICS_API_OPENGL_43) + glGetIntegerv(GL_MAX_VERTEX_ATTRIB_BINDINGS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_VERTEX_ATTRIB_BINDINGS: %i", capability); + glGetIntegerv(GL_MAX_UNIFORM_LOCATIONS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_UNIFORM_LOCATIONS: %i", capability); +#endif + +#else // !RLGL_SHOW_GL_DETAILS_INFO + + // Show some basic info about GL supported features + if (RLGL.ExtSupported.vao) TRACELOG(RL_LOG_INFO, "GL: VAO extension detected, VAO functions loaded successfully"); + else TRACELOG(RL_LOG_WARNING, "GL: VAO extension not found, VAO not supported"); + if (RLGL.ExtSupported.texNPOT) TRACELOG(RL_LOG_INFO, "GL: NPOT textures extension detected, full NPOT textures supported"); + else TRACELOG(RL_LOG_WARNING, "GL: NPOT textures extension not found, limited NPOT support (no-mipmaps, no-repeat)"); + if (RLGL.ExtSupported.texCompDXT) TRACELOG(RL_LOG_INFO, "GL: DXT compressed textures supported"); + if (RLGL.ExtSupported.texCompETC1) TRACELOG(RL_LOG_INFO, "GL: ETC1 compressed textures supported"); + if (RLGL.ExtSupported.texCompETC2) TRACELOG(RL_LOG_INFO, "GL: ETC2/EAC compressed textures supported"); + if (RLGL.ExtSupported.texCompPVRT) TRACELOG(RL_LOG_INFO, "GL: PVRT compressed textures supported"); + if (RLGL.ExtSupported.texCompASTC) TRACELOG(RL_LOG_INFO, "GL: ASTC compressed textures supported"); + if (RLGL.ExtSupported.computeShader) TRACELOG(RL_LOG_INFO, "GL: Compute shaders supported"); + if (RLGL.ExtSupported.ssbo) TRACELOG(RL_LOG_INFO, "GL: Shader storage buffer objects supported"); +#endif + +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 +} + +// Get OpenGL procedure address +void *rlGetProcAddress(const char *procName) +{ + void *func = NULL; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + func = RLGL.loader(procName); +#endif + return func; +} + +// Get current OpenGL version +int rlGetVersion(void) +{ + int glVersion = 0; + +#if defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + glVersion = RL_OPENGL_11_SOFTWARE; +#elif defined(GRAPHICS_API_OPENGL_11) + glVersion = RL_OPENGL_11; +#endif +#if defined(GRAPHICS_API_OPENGL_21) + glVersion = RL_OPENGL_21; +#elif defined(GRAPHICS_API_OPENGL_43) + glVersion = RL_OPENGL_43; +#elif defined(GRAPHICS_API_OPENGL_33) + glVersion = RL_OPENGL_33; +#endif +#if defined(GRAPHICS_API_OPENGL_ES3) + glVersion = RL_OPENGL_ES_30; +#elif defined(GRAPHICS_API_OPENGL_ES2) + glVersion = RL_OPENGL_ES_20; +#endif + + return glVersion; +} + +// Set current framebuffer width +void rlSetFramebufferWidth(int width) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.framebufferWidth = width; +#endif +} + +// Set current framebuffer height +void rlSetFramebufferHeight(int height) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.framebufferHeight = height; +#endif +} + +// Get default framebuffer width +int rlGetFramebufferWidth(void) +{ + int width = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + width = RLGL.State.framebufferWidth; +#endif + return width; +} + +// Get default framebuffer height +int rlGetFramebufferHeight(void) +{ + int height = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + height = RLGL.State.framebufferHeight; +#endif + return height; +} + +// Get default internal texture (white texture) +// NOTE: Default texture is a 1x1 pixel UNCOMPRESSED_R8G8B8A8 +unsigned int rlGetTextureIdDefault(void) +{ + unsigned int id = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + id = RLGL.State.defaultTextureId; +#endif + return id; +} + +// Get default shader id +unsigned int rlGetShaderIdDefault(void) +{ + unsigned int id = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + id = RLGL.State.defaultShaderId; +#endif + return id; +} + +// Get default shader locs +int *rlGetShaderLocsDefault(void) +{ + int *locs = NULL; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + locs = RLGL.State.defaultShaderLocs; +#endif + return locs; +} + +// Render batch management +//------------------------------------------------------------------------------------------------ +// Load render batch +rlRenderBatch rlLoadRenderBatch(int numBuffers, int bufferElements) +{ + rlRenderBatch batch = { 0 }; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return batch; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Initialize CPU (RAM) vertex buffers (position, texcoord, color data and indexes) + //-------------------------------------------------------------------------------------------- + batch.vertexBuffer = (rlVertexBuffer *)RL_CALLOC(numBuffers, sizeof(rlVertexBuffer)); + + for (int i = 0; i < numBuffers; i++) + { + batch.vertexBuffer[i].elementCount = bufferElements; + + batch.vertexBuffer[i].vertices = (float *)RL_CALLOC(bufferElements*3*4, sizeof(float)); // 3 float by vertex, 4 vertex by quad + batch.vertexBuffer[i].texcoords = (float *)RL_CALLOC(bufferElements*2*4, sizeof(float)); // 2 float by texcoord, 4 texcoord by quad + batch.vertexBuffer[i].normals = (float *)RL_CALLOC(bufferElements*3*4, sizeof(float)); // 3 float by vertex, 4 vertex by quad + batch.vertexBuffer[i].colors = (unsigned char *)RL_CALLOC(bufferElements*4*4, sizeof(unsigned char)); // 4 float by color, 4 colors by quad +#if defined(GRAPHICS_API_OPENGL_33) + batch.vertexBuffer[i].indices = (unsigned int *)RL_CALLOC(bufferElements*6, sizeof(unsigned int)); // 6 int by quad (indices) +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + batch.vertexBuffer[i].indices = (unsigned short *)RL_CALLOC(bufferElements*6, sizeof(unsigned short)); // 6 int by quad (indices) +#endif + + for (int j = 0; j < (3*4*bufferElements); j++) batch.vertexBuffer[i].vertices[j] = 0.0f; + for (int j = 0; j < (2*4*bufferElements); j++) batch.vertexBuffer[i].texcoords[j] = 0.0f; + for (int j = 0; j < (3*4*bufferElements); j++) batch.vertexBuffer[i].normals[j] = 0.0f; + for (int j = 0; j < (4*4*bufferElements); j++) batch.vertexBuffer[i].colors[j] = 0; + + int k = 0; + + // Indices can be initialized right now + for (int j = 0; j < (6*bufferElements); j += 6) + { + batch.vertexBuffer[i].indices[j] = 4*k; + batch.vertexBuffer[i].indices[j + 1] = 4*k + 1; + batch.vertexBuffer[i].indices[j + 2] = 4*k + 2; + batch.vertexBuffer[i].indices[j + 3] = 4*k; + batch.vertexBuffer[i].indices[j + 4] = 4*k + 2; + batch.vertexBuffer[i].indices[j + 5] = 4*k + 3; + + k++; + } + + RLGL.State.vertexCounter = 0; + } + + TRACELOG(RL_LOG_INFO, "RLGL: Render batch vertex buffers loaded successfully in RAM (CPU)"); + //-------------------------------------------------------------------------------------------- + + // Upload to GPU (VRAM) vertex data and initialize VAOs/VBOs + //-------------------------------------------------------------------------------------------- + for (int i = 0; i < numBuffers; i++) + { + if (RLGL.ExtSupported.vao) + { + // Initialize Quads VAO + glGenVertexArrays(1, &batch.vertexBuffer[i].vaoId); + glBindVertexArray(batch.vertexBuffer[i].vaoId); + } + + // Quads - Vertex buffers binding and attributes enable + // Vertex position buffer (shader-location = 0) + glGenBuffers(1, &batch.vertexBuffer[i].vboId[0]); + glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[0]); + glBufferData(GL_ARRAY_BUFFER, bufferElements*3*4*sizeof(float), batch.vertexBuffer[i].vertices, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION], 3, GL_FLOAT, 0, 0, 0); + + // Vertex texcoord buffer (shader-location = 1) + glGenBuffers(1, &batch.vertexBuffer[i].vboId[1]); + glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[1]); + glBufferData(GL_ARRAY_BUFFER, bufferElements*2*4*sizeof(float), batch.vertexBuffer[i].texcoords, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01], 2, GL_FLOAT, 0, 0, 0); + + // Vertex normal buffer (shader-location = 2) + glGenBuffers(1, &batch.vertexBuffer[i].vboId[2]); + glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[2]); + glBufferData(GL_ARRAY_BUFFER, bufferElements*3*4*sizeof(float), batch.vertexBuffer[i].normals, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL], 3, GL_FLOAT, 0, 0, 0); + + // Vertex color buffer (shader-location = 3) + glGenBuffers(1, &batch.vertexBuffer[i].vboId[3]); + glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[3]); + glBufferData(GL_ARRAY_BUFFER, bufferElements*4*4*sizeof(unsigned char), batch.vertexBuffer[i].colors, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR], 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); + + // Fill index buffer + glGenBuffers(1, &batch.vertexBuffer[i].vboId[4]); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[4]); +#if defined(GRAPHICS_API_OPENGL_33) + glBufferData(GL_ELEMENT_ARRAY_BUFFER, bufferElements*6*sizeof(int), batch.vertexBuffer[i].indices, GL_STATIC_DRAW); +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + glBufferData(GL_ELEMENT_ARRAY_BUFFER, bufferElements*6*sizeof(short), batch.vertexBuffer[i].indices, GL_STATIC_DRAW); +#endif + } + + TRACELOG(RL_LOG_INFO, "RLGL: Render batch vertex buffers loaded successfully in VRAM (GPU)"); + + // Unbind the current VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(0); + //-------------------------------------------------------------------------------------------- + + // Init draw calls tracking system + //-------------------------------------------------------------------------------------------- + batch.draws = (rlDrawCall *)RL_CALLOC(RL_DEFAULT_BATCH_DRAWCALLS, sizeof(rlDrawCall)); + + for (int i = 0; i < RL_DEFAULT_BATCH_DRAWCALLS; i++) + { + batch.draws[i].mode = RL_QUADS; + batch.draws[i].vertexCount = 0; + batch.draws[i].vertexAlignment = 0; + //batch.draws[i].vaoId = 0; + //batch.draws[i].shaderId = 0; + batch.draws[i].textureId = RLGL.State.defaultTextureId; + //batch.draws[i].RLGL.State.projection = rlMatrixIdentity(); + //batch.draws[i].RLGL.State.modelview = rlMatrixIdentity(); + } + + batch.bufferCount = numBuffers; // Record buffer count + batch.drawCounter = 1; // Reset draws counter + batch.currentDepth = -1.0f; // Reset depth value + //-------------------------------------------------------------------------------------------- +#endif + + return batch; +} + +// Unload default internal buffers vertex data from CPU and GPU +void rlUnloadRenderBatch(rlRenderBatch batch) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Unbind everything + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + + // Unload all vertex buffers data + for (int i = 0; i < batch.bufferCount; i++) + { + // Unbind VAO attribs data + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(batch.vertexBuffer[i].vaoId); + glDisableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION); + glDisableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD); + glDisableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL); + glDisableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR); + glBindVertexArray(0); + } + + // Delete VBOs from GPU (VRAM) + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[0]); + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[1]); + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[2]); + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[3]); + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[4]); + + // Delete VAOs from GPU (VRAM) + if (RLGL.ExtSupported.vao) glDeleteVertexArrays(1, &batch.vertexBuffer[i].vaoId); + + // Free vertex arrays memory from CPU (RAM) + RL_FREE(batch.vertexBuffer[i].vertices); + RL_FREE(batch.vertexBuffer[i].texcoords); + RL_FREE(batch.vertexBuffer[i].normals); + RL_FREE(batch.vertexBuffer[i].colors); + RL_FREE(batch.vertexBuffer[i].indices); + } + + // Unload arrays + RL_FREE(batch.vertexBuffer); + RL_FREE(batch.draws); +#endif +} + +// Draw render batch +// NOTE: Batch is reseted and current buffer is updated (for multi-buffer config) +void rlDrawRenderBatch(rlRenderBatch *batch) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Update batch vertex buffers + //------------------------------------------------------------------------------------------------------------ + // NOTE: If there is not vertex data, buffers doesn't need to be updated (vertexCount > 0) + if (RLGL.State.vertexCounter > 0) + { + // Activate elements VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(batch->vertexBuffer[batch->currentBuffer].vaoId); + + // TODO: If no data changed on the CPU arrays there is no need to re-upload data to GPU, + // a flag can be used to detect changes but it would imply keeping a copy buffer and memcmp() both, does it worth it? + + // Vertex positions buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[0]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*3*sizeof(float), batch->vertexBuffer[batch->currentBuffer].vertices); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].vertices, GL_DYNAMIC_DRAW); // Update all buffer + + // Texture coordinates buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[1]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*2*sizeof(float), batch->vertexBuffer[batch->currentBuffer].texcoords); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].texcoords, GL_DYNAMIC_DRAW); // Update all buffer + + // Normals buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*3*sizeof(float), batch->vertexBuffer[batch->currentBuffer].normals); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].normals, GL_DYNAMIC_DRAW); // Update all buffer + + // Colors buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[3]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*4*sizeof(unsigned char), batch->vertexBuffer[batch->currentBuffer].colors); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].colors, GL_DYNAMIC_DRAW); // Update all buffer + + // NOTE: glMapBuffer() causes sync issue + // If GPU is working with this buffer, glMapBuffer() will wait(stall) until GPU to finish its job + // To avoid waiting (idle), glBufferData() can bee called first with NULL pointer before glMapBuffer() + // Doing that, the previous data in PBO will be discarded and glMapBuffer() returns a new + // allocated pointer immediately even if GPU is still working with the previous data + + // Another option: map the buffer object into client's memory + //batch->vertexBuffer[batch->currentBuffer].vertices = (float *)glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE); + //if (batch->vertexBuffer[batch->currentBuffer].vertices) + //{ + // Update vertex data + //} + //glUnmapBuffer(GL_ARRAY_BUFFER); + + // Unbind the current VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(0); + } + //------------------------------------------------------------------------------------------------------------ + + // Draw batch vertex buffers (considering VR stereo if required) + //------------------------------------------------------------------------------------------------------------ + Matrix matProjection = RLGL.State.projection; + Matrix matModelView = RLGL.State.modelview; + + int eyeCount = 1; + if (RLGL.State.stereoRender) eyeCount = 2; + + for (int eye = 0; eye < eyeCount; eye++) + { + if (eyeCount == 2) + { + // Setup current eye viewport (half screen width) + rlViewport(eye*RLGL.State.framebufferWidth/2, 0, RLGL.State.framebufferWidth/2, RLGL.State.framebufferHeight); + + // Set current eye view offset to modelview matrix + rlSetMatrixModelview(rlMatrixMultiply(matModelView, RLGL.State.viewOffsetStereo[eye])); + // Set current eye projection matrix + rlSetMatrixProjection(RLGL.State.projectionStereo[eye]); + } + + // Draw buffers + if (RLGL.State.vertexCounter > 0) + { + // Set current shader and upload current MVP matrix + glUseProgram(RLGL.State.currentShaderId); + + // Create modelview-projection matrix and upload to shader + Matrix matMVP = rlMatrixMultiply(RLGL.State.modelview, RLGL.State.projection); + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MVP], 1, false, rlMatrixToFloat(matMVP)); + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_PROJECTION] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_PROJECTION], 1, false, rlMatrixToFloat(RLGL.State.projection)); + } + + // WARNING: For the following setup of the view, model, and normal matrices, it is expected that + // transformations and rendering occur between rlPushMatrix() and rlPopMatrix() + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_VIEW] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_VIEW], 1, false, rlMatrixToFloat(RLGL.State.modelview)); + } + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MODEL] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MODEL], 1, false, rlMatrixToFloat(RLGL.State.transform)); + } + + if (RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_NORMAL] != -1) + { + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_NORMAL], 1, false, rlMatrixToFloat(rlMatrixTranspose(rlMatrixInvert(RLGL.State.transform)))); + } + + if (RLGL.ExtSupported.vao) glBindVertexArray(batch->vertexBuffer[batch->currentBuffer].vaoId); + else + { + // Bind vertex attrib: position (shader-location = 0) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[0]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION], 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION]); + + // Bind vertex attrib: texcoord (shader-location = 1) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[1]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01], 2, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01]); + + // Bind vertex attrib: normal (shader-location = 2) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL], 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL]); + + // Bind vertex attrib: color (shader-location = 3) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[3]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR], 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR]); + + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[4]); + } + + // Setup some default shader values + glUniform4f(RLGL.State.currentShaderLocs[RL_SHADER_LOC_COLOR_DIFFUSE], 1.0f, 1.0f, 1.0f, 1.0f); + glUniform1i(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MAP_DIFFUSE], 0); // Active default sampler2D: texture0 + + // Activate additional sampler textures + // Those additional textures will be common for all draw calls of the batch + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] > 0) + { + glActiveTexture(GL_TEXTURE0 + 1 + i); + glBindTexture(GL_TEXTURE_2D, RLGL.State.activeTextureId[i]); + } + } + + // Activate default sampler2D texture0 (one texture is always active for default batch shader) + // NOTE: Batch system accumulates calls by texture0 changes, additional textures are enabled for all the draw calls + glActiveTexture(GL_TEXTURE0); + + for (int i = 0, vertexOffset = 0; i < batch->drawCounter; i++) + { + // Bind current draw call texture, activated as GL_TEXTURE0 and bound to sampler2D texture0 by default + glBindTexture(GL_TEXTURE_2D, batch->draws[i].textureId); + + if ((batch->draws[i].mode == RL_LINES) || (batch->draws[i].mode == RL_TRIANGLES)) glDrawArrays(batch->draws[i].mode, vertexOffset, batch->draws[i].vertexCount); + else + { + #if defined(GRAPHICS_API_OPENGL_33) + // The number of indices to be processed needs to be defined: elementCount*6 + // NOTE: The final parameter tells the GPU the offset in bytes from the + // start of the index buffer to the location of the first index to process + glDrawElements(GL_TRIANGLES, batch->draws[i].vertexCount/4*6, GL_UNSIGNED_INT, (GLvoid *)(vertexOffset/4*6*sizeof(GLuint))); + #endif + #if defined(GRAPHICS_API_OPENGL_ES2) + glDrawElements(GL_TRIANGLES, batch->draws[i].vertexCount/4*6, GL_UNSIGNED_SHORT, (GLvoid *)(vertexOffset/4*6*sizeof(GLushort))); + #endif + } + + vertexOffset += (batch->draws[i].vertexCount + batch->draws[i].vertexAlignment); + } + + if (!RLGL.ExtSupported.vao) + { + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + } + + glBindTexture(GL_TEXTURE_2D, 0); // Unbind textures + } + + if (RLGL.ExtSupported.vao) glBindVertexArray(0); // Unbind VAO + + glUseProgram(0); // Unbind shader program + } + + // Restore viewport to default measures + if (eyeCount == 2) rlViewport(0, 0, RLGL.State.framebufferWidth, RLGL.State.framebufferHeight); + //------------------------------------------------------------------------------------------------------------ + + // Reset batch buffers + //------------------------------------------------------------------------------------------------------------ + // Reset vertex counter for next frame + RLGL.State.vertexCounter = 0; + + // Reset depth for next draw + batch->currentDepth = -1.0f; + + // Restore projection/modelview matrices + RLGL.State.projection = matProjection; + RLGL.State.modelview = matModelView; + + // Reset RLGL.currentBatch->draws array + for (int i = 0; i < RL_DEFAULT_BATCH_DRAWCALLS; i++) + { + batch->draws[i].mode = RL_QUADS; + batch->draws[i].vertexCount = 0; + batch->draws[i].textureId = RLGL.State.defaultTextureId; + } + + // Reset active texture units for next batch + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) RLGL.State.activeTextureId[i] = 0; + + // Reset draws counter to one draw for the batch + batch->drawCounter = 1; + //------------------------------------------------------------------------------------------------------------ + + // Change to next buffer in the list (in case of multi-buffering) + batch->currentBuffer++; + if (batch->currentBuffer >= batch->bufferCount) batch->currentBuffer = 0; +#endif +} + +// Set the active render batch for rlgl +void rlSetRenderBatchActive(rlRenderBatch *batch) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlDrawRenderBatch(RLGL.currentBatch); + + if (batch != NULL) RLGL.currentBatch = batch; + else RLGL.currentBatch = &RLGL.defaultBatch; +#endif +} + +// Update and draw internal render batch +void rlDrawRenderBatchActive(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlDrawRenderBatch(RLGL.currentBatch); // NOTE: Stereo rendering is checked inside +#endif +} + +// Check internal buffer overflow for a given number of vertex +// and force a rlRenderBatch draw call if required +bool rlCheckRenderBatchLimit(int vCount) +{ + bool overflow = false; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((RLGL.State.vertexCounter + vCount) >= + (RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4)) + { + overflow = true; + + // Store current primitive drawing mode and texture id + int currentMode = RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode; + int currentTexture = RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId; + + rlDrawRenderBatch(RLGL.currentBatch); // NOTE: Stereo rendering is checked inside + + // Restore state of last batch so new vertices can be added + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode = currentMode; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId = currentTexture; + } +#endif + + return overflow; +} + +// Textures data management +//----------------------------------------------------------------------------------------- +// Convert image data to OpenGL texture (returns OpenGL valid Id) +unsigned int rlLoadTexture(const void *data, int width, int height, int format, int mipmapCount) +{ + unsigned int id = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return id; } + + glBindTexture(GL_TEXTURE_2D, 0); // Free any old binding + + // Check texture format support by OpenGL 1.1 (compressed textures not supported) +#if defined(GRAPHICS_API_OPENGL_11) + if (format >= RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) + { + // TODO: Support texture data decompression + TRACELOG(RL_LOG_WARNING, "GL: OpenGL 1.1 does not support GPU compressed texture formats"); + return id; + } +#else + if ((!RLGL.ExtSupported.texCompDXT) && ((format == RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA) || + (format == RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA) || (format == RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: DXT compressed texture format not supported"); + return id; + } +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((!RLGL.ExtSupported.texCompETC1) && (format == RL_PIXELFORMAT_COMPRESSED_ETC1_RGB)) + { + TRACELOG(RL_LOG_WARNING, "GL: ETC1 compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompETC2) && ((format == RL_PIXELFORMAT_COMPRESSED_ETC2_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: ETC2 compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompPVRT) && ((format == RL_PIXELFORMAT_COMPRESSED_PVRT_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: PVRT compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompASTC) && ((format == RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA) || (format == RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: ASTC compressed texture format not supported"); + return id; + } +#endif +#endif // GRAPHICS_API_OPENGL_11 + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + glGenTextures(1, &id); // Generate texture id + + glBindTexture(GL_TEXTURE_2D, id); + + int mipWidth = width; + int mipHeight = height; + int mipOffset = 0; // Mipmap data offset, only used for tracelog + (void)mipOffset; // Used to avoid gcc warnings about unused variable + + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned char *dataPtr = NULL; + if (data != NULL) dataPtr = (unsigned char *)data; + + // Load the different mipmap levels + for (int i = 0; i < mipmapCount; i++) + { + unsigned int mipSize = rlGetPixelDataSize(mipWidth, mipHeight, format); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + TRACELOG(RL_LOG_DEBUG, "TEXTURE: Load mipmap level %i (%i x %i), size: %i, offset: %i", i, mipWidth, mipHeight, mipSize, mipOffset); + + if (glInternalFormat != 0) + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) glTexImage2D(GL_TEXTURE_2D, i, glInternalFormat, mipWidth, mipHeight, 0, glFormat, glType, dataPtr); +#if !defined(GRAPHICS_API_OPENGL_11) + else glCompressedTexImage2D(GL_TEXTURE_2D, i, glInternalFormat, mipWidth, mipHeight, 0, mipSize, dataPtr); +#endif + +#if defined(GRAPHICS_API_OPENGL_33) + if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) + { + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ONE }; + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } + else if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) + { +#if defined(GRAPHICS_API_OPENGL_21) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ALPHA }; +#elif defined(GRAPHICS_API_OPENGL_33) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_GREEN }; +#endif + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } +#endif + } + + mipWidth /= 2; + mipHeight /= 2; + mipOffset += mipSize; // Increment offset position to next mipmap + if (data != NULL) dataPtr += mipSize; // Increment data pointer to next mipmap + + // Security check for NPOT textures + if (mipWidth < 1) mipWidth = 1; + if (mipHeight < 1) mipHeight = 1; + } + + // Texture parameters configuration + // NOTE: glTexParameteri does NOT affect texture uploading +#if defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: OpenGL ES 2.0 with no GL_OES_texture_npot support (i.e. WebGL) has limited NPOT support, so CLAMP_TO_EDGE must be used + if (RLGL.ExtSupported.texNPOT) + { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // Set texture to repeat on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); // Set texture to repeat on y-axis + } + else + { + // NOTE: If using negative texture coordinates (LoadOBJ()), it does not work! + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); // Set texture to clamp on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); // Set texture to clamp on y-axis + } +#else + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // Set texture to repeat on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); // Set texture to repeat on y-axis +#endif + + // Magnification and minification filters + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); // Alternative: GL_LINEAR + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); // Alternative: GL_LINEAR + +#if defined(GRAPHICS_API_OPENGL_33) + if (mipmapCount > 1) + { + // Activate trilinear filtering if mipmaps are available + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + + // Define the maximum number of mipmap levels to be used, 0 is base texture size + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, mipmapCount - 1); + + // Check if the loaded texture with mipmaps is complete, + // uncomplete textures will draw in black if mipmap filtering is required + //GLint complete = 0; + //glGetTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_IMMUTABLE_FORMAT, &complete); + } +#endif + + // At this point texture is loaded in GPU and texture parameters configured + + // NOTE: If mipmaps were not in data, they are not generated automatically + + // Unbind current texture + glBindTexture(GL_TEXTURE_2D, 0); + + if (id > 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Texture loaded successfully (%ix%i | %s | %i mipmaps)", id, width, height, rlGetPixelFormatName(format), mipmapCount); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load texture"); + + return id; +} + +// Load depth texture/renderbuffer (to be attached to fbo) +// WARNING: OpenGL ES 2.0 requires GL_OES_depth_texture and WebGL requires WEBGL_depth_texture extensions +unsigned int rlLoadTextureDepth(int width, int height, bool useRenderBuffer) +{ + unsigned int id = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return id; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // In case depth textures were not supported, force renderbuffer usage + if (!RLGL.ExtSupported.texDepth) useRenderBuffer = true; + + // NOTE: Letting the implementation to choose the best bit-depth + // Possible formats: GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT32 and GL_DEPTH_COMPONENT32F + unsigned int glInternalFormat = GL_DEPTH_COMPONENT; + +#if defined(GRAPHICS_API_OPENGL_ES2) + // WARNING: WebGL platform requires unsized internal format definition (GL_DEPTH_COMPONENT) + // while other platforms using OpenGL ES 2.0 require/support sized internal formats depending on the GPU capabilities + if (!RLGL.ExtSupported.texDepthWebGL || useRenderBuffer) + { + if (RLGL.ExtSupported.maxDepthBits == 32) glInternalFormat = GL_DEPTH_COMPONENT32_OES; + else if (RLGL.ExtSupported.maxDepthBits == 24) glInternalFormat = GL_DEPTH_COMPONENT24_OES; + else glInternalFormat = GL_DEPTH_COMPONENT16; + } +#endif +#if defined(GRAPHICS_API_OPENGL_ES3) + // NOTE: This sized internal format should also work for WebGL 2.0 + // WARNING: Specification only allows GL_DEPTH_COMPONENT32F for GL_FLOAT type + // REF: https://registry.khronos.org/OpenGL-Refpages/es3.0/html/glTexImage2D.xhtml + if (RLGL.ExtSupported.maxDepthBits == 24) glInternalFormat = GL_DEPTH_COMPONENT24; + else glInternalFormat = GL_DEPTH_COMPONENT16; +#endif + + if (!useRenderBuffer && RLGL.ExtSupported.texDepth) + { + glGenTextures(1, &id); + glBindTexture(GL_TEXTURE_2D, id); + glTexImage2D(GL_TEXTURE_2D, 0, glInternalFormat, width, height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + glBindTexture(GL_TEXTURE_2D, 0); + + TRACELOG(RL_LOG_INFO, "TEXTURE: Depth texture loaded successfully"); + } + else + { + // Create the renderbuffer that will serve as the depth attachment for the framebuffer + // NOTE: A renderbuffer is simpler than a texture and could offer better performance on embedded devices + glGenRenderbuffers(1, &id); + glBindRenderbuffer(GL_RENDERBUFFER, id); + glRenderbufferStorage(GL_RENDERBUFFER, glInternalFormat, width, height); + + glBindRenderbuffer(GL_RENDERBUFFER, 0); + + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Depth renderbuffer loaded successfully (%i bits)", id, (RLGL.ExtSupported.maxDepthBits >= 24)? RLGL.ExtSupported.maxDepthBits : 16); + } +#endif + + return id; +} + +// Load texture cubemap +// NOTE: Cubemap data is expected to be 6 images in a single data array (one after the other), +// expected the following convention: +X, -X, +Y, -Y, +Z, -Z +unsigned int rlLoadTextureCubemap(const void *data, int size, int format, int mipmapCount) +{ + unsigned int id = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return id; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + int mipSize = size; + + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned char *dataPtr = NULL; + if (data != NULL) dataPtr = (unsigned char *)data; + + unsigned int dataSize = rlGetPixelDataSize(size, size, format); + + glGenTextures(1, &id); + glBindTexture(GL_TEXTURE_CUBE_MAP, id); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + if (glInternalFormat != 0) + { + // Load cubemap faces/mipmaps + for (int i = 0; i < 6*mipmapCount; i++) + { + int mipmapLevel = i/6; + int face = i%6; + + if (data == NULL) + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) + { + if ((format == RL_PIXELFORMAT_UNCOMPRESSED_R32) || + (format == RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32) || + (format == RL_PIXELFORMAT_UNCOMPRESSED_R16) || + (format == RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16)) TRACELOG(RL_LOG_WARNING, "TEXTURES: Cubemap requested format not supported"); + else glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mipmapLevel, glInternalFormat, mipSize, mipSize, 0, glFormat, glType, NULL); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURES: Empty cubemap creation does not support compressed format"); + } + else + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mipmapLevel, glInternalFormat, mipSize, mipSize, 0, glFormat, glType, (unsigned char *)dataPtr + face*dataSize); + else glCompressedTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + face, mipmapLevel, glInternalFormat, mipSize, mipSize, 0, dataSize, (unsigned char *)dataPtr + face*dataSize); + } + +#if defined(GRAPHICS_API_OPENGL_33) + if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) + { + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ONE }; + glTexParameteriv(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } + else if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) + { +#if defined(GRAPHICS_API_OPENGL_21) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ALPHA }; +#elif defined(GRAPHICS_API_OPENGL_33) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_GREEN }; +#endif + glTexParameteriv(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } +#endif + if (face == 5) + { + mipSize /= 2; + if (data != NULL) dataPtr += dataSize*6; // Increment data pointer to next mipmap + + // Security check for NPOT textures + if (mipSize < 1) mipSize = 1; + + dataSize = rlGetPixelDataSize(mipSize, mipSize, format); + } + } + } + + // Set cubemap texture sampling parameters + if (mipmapCount > 1) glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + else glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); +#if defined(GRAPHICS_API_OPENGL_33) + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); // Flag not supported on OpenGL ES 2.0 +#endif + + glBindTexture(GL_TEXTURE_CUBE_MAP, 0); +#endif + + if (id > 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Cubemap texture loaded successfully (%ix%i)", id, size, size); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load cubemap texture"); + + return id; +} + +// Update already loaded texture in GPU with new data +// WARNING: Not possible to know safely if internal texture format is the expected one... +void rlUpdateTexture(unsigned int id, int offsetX, int offsetY, int width, int height, int format, const void *data) +{ + glBindTexture(GL_TEXTURE_2D, id); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + if ((glInternalFormat != 0) && (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB)) + { + glTexSubImage2D(GL_TEXTURE_2D, 0, offsetX, offsetY, width, height, glFormat, glType, data); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Failed to update for current texture format (%i)", id, format); +} + +// Get OpenGL internal formats and data type from raylib PixelFormat +void rlGetGlTextureFormats(int format, unsigned int *glInternalFormat, unsigned int *glFormat, unsigned int *glType) +{ + *glInternalFormat = 0; + *glFormat = 0; + *glType = 0; + + switch (format) + { + #if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_21) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: on OpenGL ES 2.0 (WebGL), internalFormat must match format and options allowed are: GL_LUMINANCE, GL_RGB, GL_RGBA + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_LUMINANCE_ALPHA; *glFormat = GL_LUMINANCE_ALPHA; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + #if !defined(GRAPHICS_API_OPENGL_11) + #if defined(GRAPHICS_API_OPENGL_ES3) + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_R32F_EXT; *glFormat = GL_RED_EXT; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB32F_EXT; *glFormat = GL_RGB; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA32F_EXT; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_R16F_EXT; *glFormat = GL_RED_EXT; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB16F_EXT; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA16F_EXT; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT; break; + #else + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + #if defined(GRAPHICS_API_OPENGL_21) + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_HALF_FLOAT_ARB; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT_ARB; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT_ARB; break; + #else // defined(GRAPHICS_API_OPENGL_ES2) + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_HALF_FLOAT_OES; break; // NOTE: Requires extension OES_texture_half_float + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT_OES; break; // NOTE: Requires extension OES_texture_half_float + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT_OES; break; // NOTE: Requires extension OES_texture_half_float + #endif + #endif + #endif + #elif defined(GRAPHICS_API_OPENGL_33) + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_R8; *glFormat = GL_RED; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_RG8; *glFormat = GL_RG; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB565; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB8; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGB5_A1; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA4; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA8; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_R32F; *glFormat = GL_RED; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB32F; *glFormat = GL_RGB; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA32F; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_R16F; *glFormat = GL_RED; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGB16F; *glFormat = GL_RGB; *glType = GL_HALF_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: if (RLGL.ExtSupported.texFloat16) *glInternalFormat = GL_RGBA16F; *glFormat = GL_RGBA; *glType = GL_HALF_FLOAT; break; + #endif + #if !defined(GRAPHICS_API_OPENGL_11) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: if (RLGL.ExtSupported.texCompETC1) *glInternalFormat = GL_ETC1_RGB8_OES; break; // NOTE: Requires OpenGL ES 2.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: if (RLGL.ExtSupported.texCompETC2) *glInternalFormat = GL_COMPRESSED_RGB8_ETC2; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: if (RLGL.ExtSupported.texCompETC2) *glInternalFormat = GL_COMPRESSED_RGBA8_ETC2_EAC; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: if (RLGL.ExtSupported.texCompPVRT) *glInternalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: if (RLGL.ExtSupported.texCompPVRT) *glInternalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: if (RLGL.ExtSupported.texCompASTC) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_4x4_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: if (RLGL.ExtSupported.texCompASTC) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_8x8_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + #endif + default: TRACELOG(RL_LOG_WARNING, "TEXTURE: Current format not supported (%i)", format); break; + } +} + +// Unload texture from GPU memory +void rlUnloadTexture(unsigned int id) +{ + glDeleteTextures(1, &id); +} + +// Generate mipmap data for selected texture +// NOTE: Only supports GPU mipmap generation +void rlGenTextureMipmaps(unsigned int id, int width, int height, int format, int *mipmaps) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindTexture(GL_TEXTURE_2D, id); + + // Check if texture is power-of-two (POT) + bool texIsPOT = false; + + if (((width > 0) && ((width & (width - 1)) == 0)) && + ((height > 0) && ((height & (height - 1)) == 0))) texIsPOT = true; + + if ((texIsPOT) || (RLGL.ExtSupported.texNPOT)) + { + //glHint(GL_GENERATE_MIPMAP_HINT, GL_DONT_CARE); // Hint for mipmaps generation algorithm: GL_FASTEST, GL_NICEST, GL_DONT_CARE + glGenerateMipmap(GL_TEXTURE_2D); // Generate mipmaps automatically + + #define MIN(a,b) (((a)<(b))? (a):(b)) + #define MAX(a,b) (((a)>(b))? (a):(b)) + + *mipmaps = 1 + (int)floor(log(MAX(width, height))/log(2)); + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Mipmaps generated automatically, total: %i", id, *mipmaps); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Failed to generate mipmaps", id); + + glBindTexture(GL_TEXTURE_2D, 0); +#else + TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] GPU mipmap generation not supported", id); +#endif +} + +// Read texture pixel data +void *rlReadTexturePixels(unsigned int id, int width, int height, int format) +{ + void *pixels = NULL; + +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + glBindTexture(GL_TEXTURE_2D, id); + + // NOTE: Using texture id, some texture info can be retrieved (but not on OpenGL ES 2.0) + // Possible texture info: GL_TEXTURE_RED_SIZE, GL_TEXTURE_GREEN_SIZE, GL_TEXTURE_BLUE_SIZE, GL_TEXTURE_ALPHA_SIZE + //int width, height, format; + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width); + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height); + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format); + + // NOTE: Each row written to or read from by OpenGL pixel operations like glGetTexImage are aligned to a 4 byte boundary by default, which may add some padding + // Use glPixelStorei to modify padding with the GL_[UN]PACK_ALIGNMENT setting + // GL_PACK_ALIGNMENT affects operations that read from OpenGL memory (glReadPixels, glGetTexImage, etc.) + // GL_UNPACK_ALIGNMENT affects operations that write to OpenGL memory (glTexImage, etc.) + glPixelStorei(GL_PACK_ALIGNMENT, 1); + + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + unsigned int size = rlGetPixelDataSize(width, height, format); + + if ((glInternalFormat != 0) && (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB)) + { + pixels = RL_CALLOC(size, 1); + glGetTexImage(GL_TEXTURE_2D, 0, glFormat, glType, pixels); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Data retrieval not suported for pixel format (%i)", id, format); + + glBindTexture(GL_TEXTURE_2D, 0); +#endif + +#if defined(GRAPHICS_API_OPENGL_ES2) + // glGetTexImage() is not available on OpenGL ES 2.0 + // Texture width and height are required on OpenGL ES 2.0, there is no way to get it from texture id + // Two possible Options: + // 1 - Bind texture to color fbo attachment and glReadPixels() + // 2 - Create an fbo, activate it, render quad with texture, glReadPixels() + // Using Option 1, care for texture format on retrieval + // NOTE: This behaviour could be conditioned by graphic driver... + unsigned int fboId = rlLoadFramebuffer(); + + glBindFramebuffer(GL_FRAMEBUFFER, fboId); + glBindTexture(GL_TEXTURE_2D, 0); + + // Attach our texture to FBO + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, id, 0); + + // Reading data as RGBA because FBO texture is configured as RGBA, despite binding another texture format + pixels = RL_CALLOC(rlGetPixelDataSize(width, height, RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8), 1); + glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels); + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + // Clean up temporal fbo + rlUnloadFramebuffer(fboId); +#endif + + return pixels; +} + +// Copy framebuffer pixel data to internal buffer +void rlCopyFramebuffer(int x, int y, int width, int height, int format, void *pixels) +{ +#if defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + unsigned int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); // Get OpenGL texture format + swCopyFramebuffer(x, y, width, height, glFormat, glType, pixels); +#endif +} + +// Resize internal framebuffer +void rlResizeFramebuffer(int width, int height) +{ +#if defined(GRAPHICS_API_OPENGL_11_SOFTWARE) + swResizeFramebuffer(width, height); +#endif +} + +// Read screen pixel data (color buffer) +unsigned char *rlReadScreenPixels(int width, int height) +{ + unsigned char *imgData = (unsigned char *)RL_CALLOC(width*height*4, sizeof(unsigned char)); + + // NOTE: glReadPixels() returns image flipped vertically -> (0,0) is the bottom left corner of the framebuffer + // WARNING: Getting alpha channel! Be careful, it can be transparent if not cleared properly! + glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, imgData); + + // Flip image vertically + // NOTE: Alpha value has already been applied to RGB in framebuffer, not needed anymore + for (int y = height - 1; y >= height/2; y--) + { + for (int x = 0; x < (width*4); x += 4) + { + unsigned int s = ((height - 1) - y)*width*4 + x; + unsigned int e = y*width*4 + x; + + unsigned char r = imgData[s]; + unsigned char g = imgData[s+1]; + unsigned char b = imgData[s+2]; + + imgData[s] = imgData[e]; + imgData[s+1] = imgData[e+1]; + imgData[s+2] = imgData[e+2]; + imgData[s+3] = 255; // Set alpha component value to 255 (no trasparent image retrieval) + + imgData[e] = r; + imgData[e+1] = g; + imgData[e+2] = b; + imgData[e+3] = 255; // Ditto + } + } + + return imgData; // NOTE: image data should be freed +} + +// Framebuffer management (fbo) +//----------------------------------------------------------------------------------------- +// Load a framebuffer to be used for rendering +// NOTE: No textures attached +unsigned int rlLoadFramebuffer(void) +{ + unsigned int fboId = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return fboId; } + +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glGenFramebuffers(1, &fboId); // Create the framebuffer object + glBindFramebuffer(GL_FRAMEBUFFER, 0); // Unbind any framebuffer +#endif + + return fboId; +} + +// Attach color buffer texture to a framebuffer object (unloads previous attachment) +// NOTE: Attach type: 0-Color, 1-Depth renderbuffer, 2-Depth texture +void rlFramebufferAttach(unsigned int id, unsigned int texId, int attachType, int texType, int mipLevel) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glBindFramebuffer(GL_FRAMEBUFFER, id); + + switch (attachType) + { + case RL_ATTACHMENT_COLOR_CHANNEL0: + case RL_ATTACHMENT_COLOR_CHANNEL1: + case RL_ATTACHMENT_COLOR_CHANNEL2: + case RL_ATTACHMENT_COLOR_CHANNEL3: + case RL_ATTACHMENT_COLOR_CHANNEL4: + case RL_ATTACHMENT_COLOR_CHANNEL5: + case RL_ATTACHMENT_COLOR_CHANNEL6: + case RL_ATTACHMENT_COLOR_CHANNEL7: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_RENDERBUFFER, texId); + else if (texType >= RL_ATTACHMENT_CUBEMAP_POSITIVE_X) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_TEXTURE_CUBE_MAP_POSITIVE_X + texType, texId, mipLevel); + } break; + case RL_ATTACHMENT_DEPTH: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, texId); + } break; + case RL_ATTACHMENT_STENCIL: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, texId); + } break; + default: break; + } + + glBindFramebuffer(GL_FRAMEBUFFER, 0); +#endif +} + +// Verify render texture is complete +bool rlFramebufferComplete(unsigned int id) +{ + bool result = false; + +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glBindFramebuffer(GL_FRAMEBUFFER, id); + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + + if (status != GL_FRAMEBUFFER_COMPLETE) + { + switch (status) + { + case GL_FRAMEBUFFER_UNSUPPORTED: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer is unsupported", id); break; + case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has incomplete attachment", id); break; +#if defined(GRAPHICS_API_OPENGL_ES2) + case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has incomplete dimensions", id); break; +#endif + case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has a missing attachment", id); break; + default: break; + } + } + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + result = (status == GL_FRAMEBUFFER_COMPLETE); +#endif + + return result; +} + +// Unload framebuffer from GPU memory +// NOTE: All attached textures/cubemaps/renderbuffers are also deleted +void rlUnloadFramebuffer(unsigned int id) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + // Query depth attachment to automatically delete texture/renderbuffer + int depthType = 0; + glBindFramebuffer(GL_FRAMEBUFFER, id); // Bind framebuffer to query depth texture type + glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &depthType); + + // WARNING: WebGL: INVALID_ENUM: getFramebufferAttachmentParameter: invalid parameter name + // REF: https://registry.khronos.org/webgl/specs/latest/1.0/ + int depthId = 0; + glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &depthId); + + unsigned int depthIdU = (unsigned int)depthId; + if (depthType == GL_RENDERBUFFER) glDeleteRenderbuffers(1, &depthIdU); + else if (depthType == GL_TEXTURE) glDeleteTextures(1, &depthIdU); + + // NOTE: If a texture object is deleted while its image is attached to the *currently bound* framebuffer, + // the texture image is automatically detached from the currently bound framebuffer + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + glDeleteFramebuffers(1, &id); + + TRACELOG(RL_LOG_INFO, "FBO: [ID %i] Unloaded framebuffer from VRAM (GPU)", id); +#endif +} + +// Vertex data management +//----------------------------------------------------------------------------------------- +// Load a new attributes buffer +unsigned int rlLoadVertexBuffer(const void *buffer, int size, bool dynamic) +{ + unsigned int id = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return id; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glGenBuffers(1, &id); + glBindBuffer(GL_ARRAY_BUFFER, id); + glBufferData(GL_ARRAY_BUFFER, size, buffer, dynamic? GL_DYNAMIC_DRAW : GL_STATIC_DRAW); +#endif + + return id; +} + +// Load a new attributes element buffer +unsigned int rlLoadVertexBufferElement(const void *buffer, int size, bool dynamic) +{ + unsigned int id = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return id; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glGenBuffers(1, &id); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, buffer, dynamic? GL_DYNAMIC_DRAW : GL_STATIC_DRAW); +#endif + + return id; +} + +// Enable vertex buffer (VBO) +void rlEnableVertexBuffer(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, id); +#endif +} + +// Disable vertex buffer (VBO) +void rlDisableVertexBuffer(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, 0); +#endif +} + +// Enable vertex buffer element (VBO element) +void rlEnableVertexBufferElement(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); +#endif +} + +// Disable vertex buffer element (VBO element) +void rlDisableVertexBufferElement(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); +#endif +} + +// Update vertex buffer with new data +// NOTE: dataSize and offset must be provided in bytes +void rlUpdateVertexBuffer(unsigned int id, const void *data, int dataSize, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, id); + glBufferSubData(GL_ARRAY_BUFFER, offset, dataSize, data); +#endif +} + +// Update vertex buffer elements with new data +// NOTE: dataSize and offset must be provided in bytes +void rlUpdateVertexBufferElements(unsigned int id, const void *data, int dataSize, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); + glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, offset, dataSize, data); +#endif +} + +// Enable vertex array object (VAO) +bool rlEnableVertexArray(unsigned int vaoId) +{ + bool result = false; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(vaoId); + result = true; + } +#endif + return result; +} + +// Disable vertex array object (VAO) +void rlDisableVertexArray(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) glBindVertexArray(0); +#endif +} + +// Enable vertex attribute index +void rlEnableVertexAttribute(unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glEnableVertexAttribArray(index); +#endif +} + +// Disable vertex attribute index +void rlDisableVertexAttribute(unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDisableVertexAttribArray(index); +#endif +} + +// Draw vertex array +void rlDrawVertexArray(int offset, int count) +{ + glDrawArrays(GL_TRIANGLES, offset, count); +} + +// Draw vertex array elements +void rlDrawVertexArrayElements(int offset, int count, const void *buffer) +{ + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned short *bufferPtr = (unsigned short *)buffer; + if (offset > 0) bufferPtr += offset; + + glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, (const unsigned short *)bufferPtr); +} + +// Draw vertex array instanced +void rlDrawVertexArrayInstanced(int offset, int count, int instances) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDrawArraysInstanced(GL_TRIANGLES, offset, count, instances); +#endif +} + +// Draw vertex array elements instanced +void rlDrawVertexArrayElementsInstanced(int offset, int count, const void *buffer, int instances) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: Added pointer math separately from function to avoid UBSAN complaining + unsigned short *bufferPtr = (unsigned short *)buffer; + if (offset > 0) bufferPtr += offset; + + glDrawElementsInstanced(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, (const unsigned short *)bufferPtr, instances); +#endif +} + +// Enable vertex state pointer +void rlEnableStatePointer(int vertexAttribType, void *buffer) +{ +#if defined(GRAPHICS_API_OPENGL_11) + if (buffer != NULL) glEnableClientState(vertexAttribType); + switch (vertexAttribType) + { + case GL_VERTEX_ARRAY: glVertexPointer(3, GL_FLOAT, 0, buffer); break; + case GL_TEXTURE_COORD_ARRAY: glTexCoordPointer(2, GL_FLOAT, 0, buffer); break; + case GL_NORMAL_ARRAY: if (buffer != NULL) glNormalPointer(GL_FLOAT, 0, buffer); break; + case GL_COLOR_ARRAY: if (buffer != NULL) glColorPointer(4, GL_UNSIGNED_BYTE, 0, buffer); break; + //case GL_INDEX_ARRAY: if (buffer != NULL) glIndexPointer(GL_SHORT, 0, buffer); break; // Indexed colors + default: break; + } +#endif +} + +// Disable vertex state pointer +void rlDisableStatePointer(int vertexAttribType) +{ +#if defined(GRAPHICS_API_OPENGL_11) + glDisableClientState(vertexAttribType); +#endif +} + +// Load vertex array object (VAO) +unsigned int rlLoadVertexArray(void) +{ + unsigned int vaoId = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return vaoId; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) glGenVertexArrays(1, &vaoId); +#endif + + return vaoId; +} + +// Set vertex attribute +void rlSetVertexAttribute(unsigned int index, int compSize, int type, bool normalized, int stride, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: Data type could be: GL_BYTE, GL_UNSIGNED_BYTE, GL_SHORT, GL_UNSIGNED_SHORT, GL_INT, GL_UNSIGNED_INT + // Additional types (depends on OpenGL version or extensions): + // - GL_HALF_FLOAT, GL_FLOAT, GL_DOUBLE, GL_FIXED, + // - GL_INT_2_10_10_10_REV, GL_UNSIGNED_INT_2_10_10_10_REV, GL_UNSIGNED_INT_10F_11F_11F_REV + + size_t offsetNative = offset; + glVertexAttribPointer(index, compSize, type, normalized, stride, (void *)offsetNative); +#endif +} + +// Set vertex attribute divisor +void rlSetVertexAttributeDivisor(unsigned int index, int divisor) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glVertexAttribDivisor(index, divisor); +#endif +} + +// Unload vertex array object (VAO) +void rlUnloadVertexArray(unsigned int vaoId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(0); + glDeleteVertexArrays(1, &vaoId); + TRACELOG(RL_LOG_INFO, "VAO: [ID %i] Unloaded vertex array data from VRAM (GPU)", vaoId); + } +#endif +} + +// Unload vertex buffer (VBO) +void rlUnloadVertexBuffer(unsigned int vboId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDeleteBuffers(1, &vboId); + //TRACELOG(RL_LOG_INFO, "VBO: Unloaded vertex data from VRAM (GPU)"); +#endif +} + +// Shaders management +//----------------------------------------------------------------------------------------------- +// Load (compile) shader and return shader id +unsigned int rlLoadShader(const char *code, int type) +{ + unsigned int shaderId = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + shaderId = glCreateShader(type); + glShaderSource(shaderId, 1, &code, NULL); + + GLint success = 0; + glCompileShader(shaderId); + glGetShaderiv(shaderId, GL_COMPILE_STATUS, &success); + + if (success == GL_FALSE) + { + switch (type) + { + case GL_VERTEX_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile vertex shader code", shaderId); break; + case GL_FRAGMENT_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile fragment shader code", shaderId); break; + //case GL_GEOMETRY_SHADER: + #if defined(GRAPHICS_API_OPENGL_43) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile compute shader code", shaderId); break; + #elif defined(GRAPHICS_API_OPENGL_33) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: Compute shaders not enabled. Define GRAPHICS_API_OPENGL_43", shaderId); break; + #endif + default: break; + } + + int maxLength = 0; + glGetShaderiv(shaderId, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = (char *)RL_CALLOC(maxLength, sizeof(char)); + glGetShaderInfoLog(shaderId, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Compile error: %s", shaderId, log); + RL_FREE(log); + } + + // Unload object allocated by glCreateShader(), + // despite failing in the compilation process + glDeleteShader(shaderId); + shaderId = 0; + } + else + { + switch (type) + { + case GL_VERTEX_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Vertex shader compiled successfully", shaderId); break; + case GL_FRAGMENT_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Fragment shader compiled successfully", shaderId); break; + //case GL_GEOMETRY_SHADER: + #if defined(GRAPHICS_API_OPENGL_43) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Compute shader compiled successfully", shaderId); break; + #elif defined(GRAPHICS_API_OPENGL_33) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: Compute shaders not enabled. Define GRAPHICS_API_OPENGL_43", shaderId); break; + #endif + default: break; + } + } +#endif + + return shaderId; +} + +// Load shader program from code strings +// NOTE: If shader string is NULL, using default vertex/fragment shaders +unsigned int rlLoadShaderProgram(const char *vsCode, const char *fsCode) +{ + unsigned int id = 0; // Shader program id + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return id; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int vertexShaderId = 0; + unsigned int fragmentShaderId = 0; + + // Compile vertex shader (if provided) + // NOTE: If not vertex shader is provided, use default one + if (vsCode != NULL) vertexShaderId = rlLoadShader(vsCode, GL_VERTEX_SHADER); + else vertexShaderId = RLGL.State.defaultVShaderId; + + // Compile fragment shader (if provided) + // NOTE: If not vertex shader is provided, use default one + if (fsCode != NULL) fragmentShaderId = rlLoadShader(fsCode, GL_FRAGMENT_SHADER); + else fragmentShaderId = RLGL.State.defaultFShaderId; + + // In case vertex and fragment shader are the default ones, no need to recompile, assign the default shader program id + if ((vertexShaderId == RLGL.State.defaultVShaderId) && (fragmentShaderId == RLGL.State.defaultFShaderId)) id = RLGL.State.defaultShaderId; + else if ((vertexShaderId > 0) && (fragmentShaderId > 0)) + { + // One of or both shader are new, a new shader program needs to be compiled + id = rlLoadShaderProgramEx(vertexShaderId, fragmentShaderId); + + // Detaching and deleting vertex/fragment shaders (if not default ones) + // WARNING: Detach shader before deletion to make sure memory is freed + if (vertexShaderId != RLGL.State.defaultVShaderId) + { + // WARNING: Shader program linkage could fail and returned id is 0 + if (id > 0) glDetachShader(id, vertexShaderId); + glDeleteShader(vertexShaderId); + } + if (fragmentShaderId != RLGL.State.defaultFShaderId) + { + // WARNING: Shader program linkage could fail and returned id is 0 + if (id > 0) glDetachShader(id, fragmentShaderId); + glDeleteShader(fragmentShaderId); + } + + // In case shader program loading failed, assign default shader + if (id == 0) + { + // In case shader loading fails, reassigning default shader + TRACELOG(RL_LOG_WARNING, "SHADER: Failed to load custom shader code, using default shader"); + id = RLGL.State.defaultShaderId; + } + /* + else + { + // Get available shader uniforms + // NOTE: This information is useful for debug... + int uniformCount = -1; + glGetProgramiv(id, GL_ACTIVE_UNIFORMS, &uniformCount); + + for (int i = 0; i < uniformCount; i++) + { + int namelen = -1; + int num = -1; + char name[256] = { 0 }; // Assume no variable names longer than 256 + GLenum type = GL_ZERO; + + // Get the name of the uniforms + glGetActiveUniform(id, i, sizeof(name) - 1, &namelen, &num, &type, name); + + name[namelen] = 0; + TRACELOG(RL_LOG_DEBUG, "SHADER: [ID %i] Active uniform (%s) set at location: %i", id, name, glGetUniformLocation(id, name)); + } + } + */ + } +#endif + + return id; +} + +// Load shader program from already loaded shader ids +unsigned int rlLoadShaderProgramEx(unsigned int vsId, unsigned int fsId) +{ + unsigned int programId = 0; + if (!isGpuReady) { TRACELOG(RL_LOG_WARNING, "GL: GPU is not ready to load data, trying to load before InitWindow()?"); return programId; } + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + GLint success = 0; + programId = glCreateProgram(); + + glAttachShader(programId, vsId); + glAttachShader(programId, fsId); + + // Default attribute shader locations must be bound before linking + // NOTE: There is no problem with binding a generic attribute index to an attribute variable name + // that is never used; if some attrib name is no found on the shader, it locations becomes -1 + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION, RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL, RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_COLOR, RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_TANGENT, RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD2, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_INSTANCETRANSFORM, RL_DEFAULT_SHADER_ATTRIB_NAME_INSTANCETRANSFORM); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEINDICES, RL_DEFAULT_SHADER_ATTRIB_NAME_BONEINDICES); + glBindAttribLocation(programId, RL_DEFAULT_SHADER_ATTRIB_LOCATION_BONEWEIGHTS, RL_DEFAULT_SHADER_ATTRIB_NAME_BONEWEIGHTS); + + glLinkProgram(programId); + + // NOTE: All uniform variables are intitialised to 0 when a program links + + glGetProgramiv(programId, GL_LINK_STATUS, &success); + + if (success == GL_FALSE) + { + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to link shader program", programId); + + int maxLength = 0; + glGetProgramiv(programId, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = (char *)RL_CALLOC(maxLength, sizeof(char)); + glGetProgramInfoLog(programId, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Link error: %s", programId, log); + RL_FREE(log); + } + + glDeleteProgram(programId); + + programId = 0; + } + else + { + // Get the size of compiled shader program (not available on OpenGL ES 2.0) + // NOTE: If GL_LINK_STATUS is GL_FALSE, program binary length is zero + //GLint binarySize = 0; + //glGetProgramiv(id, GL_PROGRAM_BINARY_LENGTH, &binarySize); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Program shader loaded successfully", programId); + } +#endif + return programId; +} + +// Load compute shader program +unsigned int rlLoadShaderProgramCompute(unsigned int csId) +{ + unsigned int programId = 0; + +#if defined(GRAPHICS_API_OPENGL_43) + GLint success = 0; + programId = glCreateProgram(); + + glAttachShader(programId, csId); + + glLinkProgram(programId); + + // NOTE: All uniform variables are intitialised to 0 when a program links + + glGetProgramiv(programId, GL_LINK_STATUS, &success); + + if (success == GL_FALSE) + { + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to link compute shader program", programId); + + int maxLength = 0; + glGetProgramiv(programId, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = (char *)RL_CALLOC(maxLength, sizeof(char)); + glGetProgramInfoLog(programId, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Link error: %s", programId, log); + RL_FREE(log); + } + + glDeleteProgram(programId); + + programId = 0; + } + else + { + // Get the size of compiled shader program (not available on OpenGL ES 2.0) + // NOTE: If GL_LINK_STATUS is GL_FALSE, program binary length is zero + //GLint binarySize = 0; + //glGetProgramiv(id, GL_PROGRAM_BINARY_LENGTH, &binarySize); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Compute shader program loaded successfully", programId); + } +#else + TRACELOG(RL_LOG_WARNING, "SHADER: Compute shaders not supported, enable GRAPHICS_API_OPENGL_43"); +#endif + + return programId; +} + +// Delete shader +void rlUnloadShader(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDeleteShader(id); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Unloaded shader data from VRAM (GPU)", id); +#endif +} + +// Unload shader program +void rlUnloadShaderProgram(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDeleteProgram(id); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Unloaded shader program data from VRAM (GPU)", id); +#endif +} + +// Get shader location uniform +// NOTE: First parameter refers to shader program id +int rlGetLocationUniform(unsigned int id, const char *uniformName) +{ + int location = -1; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + location = glGetUniformLocation(id, uniformName); + + //if (location == -1) TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to find shader uniform: %s", shaderId, uniformName); + //else TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Shader uniform (%s) set at location: %i", shaderId, uniformName, location); +#endif + return location; +} + +// Get shader location attribute +// NOTE: First parameter refers to shader program id +int rlGetLocationAttrib(unsigned int id, const char *attribName) +{ + int location = -1; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + location = glGetAttribLocation(id, attribName); + + //if (location == -1) TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to find shader attribute: %s", shaderId, attribName); + //else TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Shader attribute (%s) set at location: %i", shaderId, attribName, location); +#endif + return location; +} + +// Set shader value uniform +void rlSetUniform(int locIndex, const void *value, int uniformType, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + switch (uniformType) + { + case RL_SHADER_UNIFORM_FLOAT: glUniform1fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC2: glUniform2fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC3: glUniform3fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC4: glUniform4fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_INT: glUniform1iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC2: glUniform2iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC3: glUniform3iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC4: glUniform4iv(locIndex, count, (int *)value); break; + #if !defined(GRAPHICS_API_OPENGL_ES2) + case RL_SHADER_UNIFORM_UINT: glUniform1uiv(locIndex, count, (unsigned int *)value); break; + case RL_SHADER_UNIFORM_UIVEC2: glUniform2uiv(locIndex, count, (unsigned int *)value); break; + case RL_SHADER_UNIFORM_UIVEC3: glUniform3uiv(locIndex, count, (unsigned int *)value); break; + case RL_SHADER_UNIFORM_UIVEC4: glUniform4uiv(locIndex, count, (unsigned int *)value); break; + #endif + case RL_SHADER_UNIFORM_SAMPLER2D: glUniform1iv(locIndex, count, (int *)value); break; + default: TRACELOG(RL_LOG_WARNING, "SHADER: Failed to set uniform value, data type not recognized"); + } +#endif +} + +// Set shader value attribute +void rlSetVertexAttributeDefault(int locIndex, const void *value, int attribType, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + switch (attribType) + { + case RL_SHADER_ATTRIB_FLOAT: if (count == 1) glVertexAttrib1fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC2: if (count == 2) glVertexAttrib2fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC3: if (count == 3) glVertexAttrib3fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC4: if (count == 4) glVertexAttrib4fv(locIndex, (float *)value); break; + default: TRACELOG(RL_LOG_WARNING, "SHADER: Failed to set attrib default value, data type not recognized"); + } +#endif +} + +// Set shader value uniform matrix +void rlSetUniformMatrix(int locIndex, Matrix mat) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glUniformMatrix4fv(locIndex, 1, false, rlMatrixToFloat(mat)); +#endif +} + +// Set shader value uniform matrix +void rlSetUniformMatrices(int locIndex, const Matrix *matrices, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) + glUniformMatrix4fv(locIndex, count, true, (const float *)matrices); +#elif defined(GRAPHICS_API_OPENGL_ES2) + // WARNING: WebGL does not support Matrix transpose ("true" parameter) + // REF: https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/uniformMatrix + glUniformMatrix4fv(locIndex, count, false, (const float *)matrices); +#endif +} + +// Set shader value uniform sampler +void rlSetUniformSampler(int locIndex, unsigned int textureId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Check if texture is already active + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] == textureId) + { + glUniform1i(locIndex, 1 + i); + return; + } + } + + // Register a new active texture for the internal batch system + // NOTE: Default texture is always activated as GL_TEXTURE0 + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] == 0) + { + glUniform1i(locIndex, 1 + i); // Activate new texture unit + RLGL.State.activeTextureId[i] = textureId; // Save texture id for binding on drawing + break; + } + } +#endif +} + +// Set shader currently active (id and locations) +void rlSetShader(unsigned int id, int *locs) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.State.currentShaderId != id) + { + rlDrawRenderBatch(RLGL.currentBatch); + RLGL.State.currentShaderId = id; + RLGL.State.currentShaderLocs = locs; + } +#endif +} + +// Dispatch compute shader (equivalent to *draw* for graphics pilepine) +void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glDispatchCompute(groupX, groupY, groupZ); +#endif +} + +// Load shader storage buffer object (SSBO) +unsigned int rlLoadShaderBuffer(unsigned int size, const void *data, int usageHint) +{ + unsigned int ssbo = 0; + +#if defined(GRAPHICS_API_OPENGL_43) + glGenBuffers(1, &ssbo); + glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo); + glBufferData(GL_SHADER_STORAGE_BUFFER, size, data, usageHint? usageHint : RL_STREAM_COPY); + if (data == NULL) glClearBufferData(GL_SHADER_STORAGE_BUFFER, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE, NULL); // Clear buffer data to 0 + glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0); +#else + TRACELOG(RL_LOG_WARNING, "SSBO: SSBO not enabled. Define GRAPHICS_API_OPENGL_43"); +#endif + + return ssbo; +} + +// Unload shader storage buffer object (SSBO) +void rlUnloadShaderBuffer(unsigned int ssboId) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glDeleteBuffers(1, &ssboId); +#else + TRACELOG(RL_LOG_WARNING, "SSBO: SSBO not enabled. Define GRAPHICS_API_OPENGL_43"); +#endif +} + +// Update SSBO buffer data +void rlUpdateShaderBuffer(unsigned int id, const void *data, unsigned int dataSize, unsigned int offset) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, dataSize, data); +#endif +} + +// Get SSBO buffer size +unsigned int rlGetShaderBufferSize(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_43) + GLint64 size = 0; + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glGetBufferParameteri64v(GL_SHADER_STORAGE_BUFFER, GL_BUFFER_SIZE, &size); + return (size > 0)? (unsigned int)size : 0; +#else + return 0; +#endif +} + +// Read SSBO buffer data (GPU->CPU) +void rlReadShaderBuffer(unsigned int id, void *dest, unsigned int count, unsigned int offset) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, count, dest); +#endif +} + +// Bind SSBO buffer +void rlBindShaderBuffer(unsigned int id, unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBufferBase(GL_SHADER_STORAGE_BUFFER, index, id); +#endif +} + +// Copy SSBO buffer data +void rlCopyShaderBuffer(unsigned int destId, unsigned int srcId, unsigned int destOffset, unsigned int srcOffset, unsigned int count) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_COPY_READ_BUFFER, srcId); + glBindBuffer(GL_COPY_WRITE_BUFFER, destId); + glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, srcOffset, destOffset, count); +#endif +} + +// Bind image texture +void rlBindImageTexture(unsigned int id, unsigned int index, int format, bool readonly) +{ +#if defined(GRAPHICS_API_OPENGL_43) + unsigned int glInternalFormat = 0, glFormat = 0, glType = 0; + + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + glBindImageTexture(index, id, 0, 0, 0, readonly? GL_READ_ONLY : GL_READ_WRITE, glInternalFormat); +#else + TRACELOG(RL_LOG_WARNING, "TEXTURE: Image texture binding not enabled. Define GRAPHICS_API_OPENGL_43"); +#endif +} + +// Matrix state management +//----------------------------------------------------------------------------------------- +// Get internal modelview matrix +Matrix rlGetMatrixModelview(void) +{ + Matrix matrix = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_11) + float mat[16]; + glGetFloatv(GL_MODELVIEW_MATRIX, mat); + matrix.m0 = mat[0]; + matrix.m1 = mat[1]; + matrix.m2 = mat[2]; + matrix.m3 = mat[3]; + matrix.m4 = mat[4]; + matrix.m5 = mat[5]; + matrix.m6 = mat[6]; + matrix.m7 = mat[7]; + matrix.m8 = mat[8]; + matrix.m9 = mat[9]; + matrix.m10 = mat[10]; + matrix.m11 = mat[11]; + matrix.m12 = mat[12]; + matrix.m13 = mat[13]; + matrix.m14 = mat[14]; + matrix.m15 = mat[15]; +#else + matrix = RLGL.State.modelview; +#endif + return matrix; +} + +// Get internal projection matrix +Matrix rlGetMatrixProjection(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) + float mat[16]; + glGetFloatv(GL_PROJECTION_MATRIX,mat); + Matrix m; + m.m0 = mat[0]; + m.m1 = mat[1]; + m.m2 = mat[2]; + m.m3 = mat[3]; + m.m4 = mat[4]; + m.m5 = mat[5]; + m.m6 = mat[6]; + m.m7 = mat[7]; + m.m8 = mat[8]; + m.m9 = mat[9]; + m.m10 = mat[10]; + m.m11 = mat[11]; + m.m12 = mat[12]; + m.m13 = mat[13]; + m.m14 = mat[14]; + m.m15 = mat[15]; + return m; +#else + return RLGL.State.projection; +#endif +} + +// Get internal accumulated transform matrix +Matrix rlGetMatrixTransform(void) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // TODO: Consider possible transform matrices in the RLGL.State.stack + //Matrix matStackTransform = rlMatrixIdentity(); + //for (int i = RLGL.State.stackCounter; i > 0; i--) matStackTransform = rlMatrixMultiply(RLGL.State.stack[i], matStackTransform); + + mat = RLGL.State.transform; +#endif + return mat; +} + +// Get internal projection matrix for stereo render (selected eye) +Matrix rlGetMatrixProjectionStereo(int eye) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + mat = RLGL.State.projectionStereo[eye]; +#endif + return mat; +} + +// Get internal view offset matrix for stereo render (selected eye) +Matrix rlGetMatrixViewOffsetStereo(int eye) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + mat = RLGL.State.viewOffsetStereo[eye]; +#endif + return mat; +} + +// Set a custom modelview matrix (replaces internal modelview matrix) +void rlSetMatrixModelview(Matrix view) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.modelview = view; +#endif +} + +// Set a custom projection matrix (replaces internal projection matrix) +void rlSetMatrixProjection(Matrix projection) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.projection = projection; +#endif +} + +// Set eyes projection matrices for stereo rendering +void rlSetMatrixProjectionStereo(Matrix right, Matrix left) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.projectionStereo[0] = right; + RLGL.State.projectionStereo[1] = left; +#endif +} + +// Set eyes view offsets matrices for stereo rendering +void rlSetMatrixViewOffsetStereo(Matrix right, Matrix left) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.viewOffsetStereo[0] = right; + RLGL.State.viewOffsetStereo[1] = left; +#endif +} + +// Load and draw a quad in NDC +void rlLoadDrawQuad(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int quadVAO = 0; + unsigned int quadVBO = 0; + + float vertices[] = { + // Positions Texcoords + -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, + 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, + }; + + // Gen VAO to contain VBO + glGenVertexArrays(1, &quadVAO); + glBindVertexArray(quadVAO); + + // Gen and fill vertex buffer (VBO) + glGenBuffers(1, &quadVBO); + glBindBuffer(GL_ARRAY_BUFFER, quadVBO); + glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), &vertices, GL_STATIC_DRAW); + + // Bind vertex attributes (position, texcoords) + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION, 3, GL_FLOAT, GL_FALSE, 5*sizeof(float), (void *)0); // Positions + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD, 2, GL_FLOAT, GL_FALSE, 5*sizeof(float), (void *)(3*sizeof(float))); // Texcoords + + // Draw quad + glBindVertexArray(quadVAO); + glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); + glBindVertexArray(0); + + // Delete buffers (VBO and VAO) + glDeleteBuffers(1, &quadVBO); + glDeleteVertexArrays(1, &quadVAO); +#endif +} + +// Load and draw a cube in NDC +void rlLoadDrawCube(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int cubeVAO = 0; + unsigned int cubeVBO = 0; + + float vertices[] = { + // Positions Normals Texcoords + -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, + -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, + -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, + -1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + -1.0f, 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, + -1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, + -1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, + -1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, + -1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, + -1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f + }; + + // Gen VAO to contain VBO + glGenVertexArrays(1, &cubeVAO); + glBindVertexArray(cubeVAO); + + // Gen and fill vertex buffer (VBO) + glGenBuffers(1, &cubeVBO); + glBindBuffer(GL_ARRAY_BUFFER, cubeVBO); + glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); + + // Bind vertex attributes (position, normals, texcoords) + glBindVertexArray(cubeVAO); + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_POSITION, 3, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)0); // Positions + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_NORMAL, 3, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)(3*sizeof(float))); // Normals + glEnableVertexAttribArray(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD); + glVertexAttribPointer(RL_DEFAULT_SHADER_ATTRIB_LOCATION_TEXCOORD, 2, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)(6*sizeof(float))); // Texcoords + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindVertexArray(0); + + // Draw cube + glBindVertexArray(cubeVAO); + glDrawArrays(GL_TRIANGLES, 0, 36); + glBindVertexArray(0); + + // Delete VBO and VAO + glDeleteBuffers(1, &cubeVBO); + glDeleteVertexArrays(1, &cubeVAO); +#endif +} + +// Get name string for pixel format +const char *rlGetPixelFormatName(unsigned int format) +{ + switch (format) + { + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: return "GRAYSCALE"; break; // 8 bit per pixel (no alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: return "GRAY_ALPHA"; break; // 8*2 bpp (2 channels) + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: return "R5G6B5"; break; // 16 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: return "R8G8B8"; break; // 24 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: return "R5G5B5A1"; break; // 16 bpp (1 bit alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: return "R4G4B4A4"; break; // 16 bpp (4 bit alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: return "R8G8B8A8"; break; // 32 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R32: return "R32"; break; // 32 bpp (1 channel - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: return "R32G32B32"; break; // 32*3 bpp (3 channels - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: return "R32G32B32A32"; break; // 32*4 bpp (4 channels - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R16: return "R16"; break; // 16 bpp (1 channel - half float) + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: return "R16G16B16"; break; // 16*3 bpp (3 channels - half float) + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: return "R16G16B16A16"; break; // 16*4 bpp (4 channels - half float) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: return "DXT1_RGB"; break; // 4 bpp (no alpha) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: return "DXT1_RGBA"; break; // 4 bpp (1 bit alpha) + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: return "DXT3_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: return "DXT5_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: return "ETC1_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: return "ETC2_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: return "ETC2_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: return "PVRT_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: return "PVRT_RGBA"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: return "ASTC_4x4_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: return "ASTC_8x8_RGBA"; break; // 2 bpp + default: return "UNKNOWN"; break; + } +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Load default shader (just vertex positioning and texture coloring) +// NOTE: This shader program is used for internal buffers +// NOTE: Loaded: RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs +static void rlLoadShaderDefault(void) +{ + RLGL.State.defaultShaderLocs = (int *)RL_CALLOC(RL_MAX_SHADER_LOCATIONS, sizeof(int)); + + // NOTE: All locations must be reseted to -1 (no location) + for (int i = 0; i < RL_MAX_SHADER_LOCATIONS; i++) RLGL.State.defaultShaderLocs[i] = -1; + + // Vertex shader directly defined, no external file required + const char *defaultVShaderCode = +#if defined(GRAPHICS_API_OPENGL_21) + "#version 120 \n" + "attribute vec3 vertexPosition; \n" + "attribute vec2 vertexTexCoord; \n" + "attribute vec4 vertexColor; \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" +#elif defined(GRAPHICS_API_OPENGL_33) + "#version 330 \n" + "in vec3 vertexPosition; \n" + "in vec2 vertexTexCoord; \n" + "in vec4 vertexColor; \n" + "out vec2 fragTexCoord; \n" + "out vec4 fragColor; \n" +#endif + +#if defined(GRAPHICS_API_OPENGL_ES3) + "#version 300 es \n" + "precision mediump float; \n" // Precision required for OpenGL ES3 (WebGL 2) (on some browsers) + "in vec3 vertexPosition; \n" + "in vec2 vertexTexCoord; \n" + "in vec4 vertexColor; \n" + "out vec2 fragTexCoord; \n" + "out vec4 fragColor; \n" +#elif defined(GRAPHICS_API_OPENGL_ES2) + "#version 100 \n" + "precision mediump float; \n" // Precision required for OpenGL ES2 (WebGL) (on some browsers) + "attribute vec3 vertexPosition; \n" + "attribute vec2 vertexTexCoord; \n" + "attribute vec4 vertexColor; \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" +#endif + + "uniform mat4 mvp; \n" + "void main() \n" + "{ \n" + " fragTexCoord = vertexTexCoord; \n" + " fragColor = vertexColor; \n" + " gl_Position = mvp*vec4(vertexPosition, 1.0); \n" + "} \n"; + + // Fragment shader directly defined, no external file required + const char *defaultFShaderCode = +#if defined(GRAPHICS_API_OPENGL_21) + "#version 120 \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" + " gl_FragColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#elif defined(GRAPHICS_API_OPENGL_33) + "#version 330 \n" + "in vec2 fragTexCoord; \n" + "in vec4 fragColor; \n" + "out vec4 finalColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture(texture0, fragTexCoord); \n" + " finalColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#endif + +#if defined(GRAPHICS_API_OPENGL_ES3) + "#version 300 es \n" + "precision mediump float; \n" // Precision required for OpenGL ES3 (WebGL 2) + "in vec2 fragTexCoord; \n" + "in vec4 fragColor; \n" + "out vec4 finalColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture(texture0, fragTexCoord); \n" + " finalColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#elif defined(GRAPHICS_API_OPENGL_ES2) + "#version 100 \n" + "precision mediump float; \n" // Precision required for OpenGL ES2 (WebGL) + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" + " gl_FragColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#endif + + // NOTE: Compiled vertex/fragment shaders are not deleted, + // they are kept for re-use as default shaders in case some shader loading fails + RLGL.State.defaultVShaderId = rlLoadShader(defaultVShaderCode, GL_VERTEX_SHADER); // Compile default vertex shader + RLGL.State.defaultFShaderId = rlLoadShader(defaultFShaderCode, GL_FRAGMENT_SHADER); // Compile default fragment shader + + RLGL.State.defaultShaderId = rlLoadShaderProgramEx(RLGL.State.defaultVShaderId, RLGL.State.defaultFShaderId); + + if (RLGL.State.defaultShaderId > 0) + { + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Default shader loaded successfully", RLGL.State.defaultShaderId); + + // Set default shader locations: attributes locations + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_POSITION] = glGetAttribLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01] = glGetAttribLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_COLOR] = glGetAttribLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR); + + // Set default shader locations: uniform locations + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_MATRIX_MVP] = glGetUniformLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_UNIFORM_NAME_MVP); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_COLOR_DIFFUSE] = glGetUniformLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_MAP_DIFFUSE] = glGetUniformLocation(RLGL.State.defaultShaderId, RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0); + } + else TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to load default shader", RLGL.State.defaultShaderId); +} + +// Unload default shader +// NOTE: Unloads: RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs +static void rlUnloadShaderDefault(void) +{ + glUseProgram(0); + + glDetachShader(RLGL.State.defaultShaderId, RLGL.State.defaultVShaderId); + glDetachShader(RLGL.State.defaultShaderId, RLGL.State.defaultFShaderId); + glDeleteShader(RLGL.State.defaultVShaderId); + glDeleteShader(RLGL.State.defaultFShaderId); + + glDeleteProgram(RLGL.State.defaultShaderId); + + RL_FREE(RLGL.State.defaultShaderLocs); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Default shader unloaded successfully", RLGL.State.defaultShaderId); +} + +#if RLGL_SHOW_GL_DETAILS_INFO +// Get compressed format official GL identifier name +static const char *rlGetCompressedFormatName(int format) +{ + switch (format) + { + // GL_EXT_texture_compression_s3tc + case 0x83F0: return "GL_COMPRESSED_RGB_S3TC_DXT1_EXT"; break; + case 0x83F1: return "GL_COMPRESSED_RGBA_S3TC_DXT1_EXT"; break; + case 0x83F2: return "GL_COMPRESSED_RGBA_S3TC_DXT3_EXT"; break; + case 0x83F3: return "GL_COMPRESSED_RGBA_S3TC_DXT5_EXT"; break; + // GL_3DFX_texture_compression_FXT1 + case 0x86B0: return "GL_COMPRESSED_RGB_FXT1_3DFX"; break; + case 0x86B1: return "GL_COMPRESSED_RGBA_FXT1_3DFX"; break; + // GL_IMG_texture_compression_pvrtc + case 0x8C00: return "GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG"; break; + case 0x8C01: return "GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG"; break; + case 0x8C02: return "GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG"; break; + case 0x8C03: return "GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG"; break; + // GL_OES_compressed_ETC1_RGB8_texture + case 0x8D64: return "GL_ETC1_RGB8_OES"; break; + // GL_ARB_texture_compression_rgtc + case 0x8DBB: return "GL_COMPRESSED_RED_RGTC1"; break; + case 0x8DBC: return "GL_COMPRESSED_SIGNED_RED_RGTC1"; break; + case 0x8DBD: return "GL_COMPRESSED_RG_RGTC2"; break; + case 0x8DBE: return "GL_COMPRESSED_SIGNED_RG_RGTC2"; break; + // GL_ARB_texture_compression_bptc + case 0x8E8C: return "GL_COMPRESSED_RGBA_BPTC_UNORM_ARB"; break; + case 0x8E8D: return "GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB"; break; + case 0x8E8E: return "GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB"; break; + case 0x8E8F: return "GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB"; break; + // GL_ARB_ES3_compatibility + case 0x9274: return "GL_COMPRESSED_RGB8_ETC2"; break; + case 0x9275: return "GL_COMPRESSED_SRGB8_ETC2"; break; + case 0x9276: return "GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2"; break; + case 0x9277: return "GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2"; break; + case 0x9278: return "GL_COMPRESSED_RGBA8_ETC2_EAC"; break; + case 0x9279: return "GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC"; break; + case 0x9270: return "GL_COMPRESSED_R11_EAC"; break; + case 0x9271: return "GL_COMPRESSED_SIGNED_R11_EAC"; break; + case 0x9272: return "GL_COMPRESSED_RG11_EAC"; break; + case 0x9273: return "GL_COMPRESSED_SIGNED_RG11_EAC"; break; + // GL_KHR_texture_compression_astc_hdr + case 0x93B0: return "GL_COMPRESSED_RGBA_ASTC_4x4_KHR"; break; + case 0x93B1: return "GL_COMPRESSED_RGBA_ASTC_5x4_KHR"; break; + case 0x93B2: return "GL_COMPRESSED_RGBA_ASTC_5x5_KHR"; break; + case 0x93B3: return "GL_COMPRESSED_RGBA_ASTC_6x5_KHR"; break; + case 0x93B4: return "GL_COMPRESSED_RGBA_ASTC_6x6_KHR"; break; + case 0x93B5: return "GL_COMPRESSED_RGBA_ASTC_8x5_KHR"; break; + case 0x93B6: return "GL_COMPRESSED_RGBA_ASTC_8x6_KHR"; break; + case 0x93B7: return "GL_COMPRESSED_RGBA_ASTC_8x8_KHR"; break; + case 0x93B8: return "GL_COMPRESSED_RGBA_ASTC_10x5_KHR"; break; + case 0x93B9: return "GL_COMPRESSED_RGBA_ASTC_10x6_KHR"; break; + case 0x93BA: return "GL_COMPRESSED_RGBA_ASTC_10x8_KHR"; break; + case 0x93BB: return "GL_COMPRESSED_RGBA_ASTC_10x10_KHR"; break; + case 0x93BC: return "GL_COMPRESSED_RGBA_ASTC_12x10_KHR"; break; + case 0x93BD: return "GL_COMPRESSED_RGBA_ASTC_12x12_KHR"; break; + case 0x93D0: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR"; break; + case 0x93D1: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR"; break; + case 0x93D2: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR"; break; + case 0x93D3: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR"; break; + case 0x93D4: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR"; break; + case 0x93D5: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR"; break; + case 0x93D6: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR"; break; + case 0x93D7: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR"; break; + case 0x93D8: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR"; break; + case 0x93D9: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR"; break; + case 0x93DA: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR"; break; + case 0x93DB: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR"; break; + case 0x93DC: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR"; break; + case 0x93DD: return "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR"; break; + default: return "GL_COMPRESSED_UNKNOWN"; break; + } +} +#endif + +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + +// Get pixel data size in bytes (image or texture) +// NOTE: Size depends on pixel format +static int rlGetPixelDataSize(int width, int height, int format) +{ + int dataSize = 0; // Size in bytes + int bpp = 0; // Bits per pixel + + switch (format) + { + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: bpp = 8; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: bpp = 16; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: bpp = 32; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: bpp = 24; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32: bpp = 32; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: bpp = 32*3; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: bpp = 32*4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16: bpp = 16; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16: bpp = 16*3; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16: bpp = 16*4; break; + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: // 8 bytes per each 4x4 block + { + int blockWidth = (width + 3)/4; + int blockHeight = (height + 3)/4; + dataSize = blockWidth*blockHeight*8; + } break; + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: // 16 bytes per each 4x4 block + { + int blockWidth = (width + 3)/4; + int blockHeight = (height + 3)/4; + dataSize = blockWidth*blockHeight*16; + } break; + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: // 4 bytes per each 4x4 block + { + int blockWidth = (width + 3)/4; + int blockHeight = (height + 3)/4; + dataSize = blockWidth*blockHeight*4; + } break; + default: break; + } + + // Compute dataSize for uncompressed texture data (no blocks) + if ((format >= RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) && + (format <= RL_PIXELFORMAT_UNCOMPRESSED_R16G16B16A16)) + { + double bytesPerPixel = (double)bpp/8.0; + dataSize = (int)(bytesPerPixel*width*height); // Total data size in bytes + } + + return dataSize; +} + +// Auxiliar math functions +//------------------------------------------------------------------------------- +// Get identity matrix +static Matrix rlMatrixIdentity(void) +{ + Matrix matIdentity = { 0 }; + matIdentity.m0 = 1.0f; + matIdentity.m5 = 1.0f; + matIdentity.m10 = 1.0f; + matIdentity.m15 = 1.0f; + + return matIdentity; +} +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Get float array of matrix data +// Explicit conversion to column-major memory layout +static rl_float16 rlMatrixToFloatV(Matrix mat) +{ + rl_float16 result = { 0 }; + + result.v[0] = mat.m0; + result.v[1] = mat.m1; + result.v[2] = mat.m2; + result.v[3] = mat.m3; + result.v[4] = mat.m4; + result.v[5] = mat.m5; + result.v[6] = mat.m6; + result.v[7] = mat.m7; + result.v[8] = mat.m8; + result.v[9] = mat.m9; + result.v[10] = mat.m10; + result.v[11] = mat.m11; + result.v[12] = mat.m12; + result.v[13] = mat.m13; + result.v[14] = mat.m14; + result.v[15] = mat.m15; + + return result; +} + +// Get two matrix multiplication +// NOTE: When multiplying matrices... the order matters! +static Matrix rlMatrixMultiply(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0*right.m0 + left.m1*right.m4 + left.m2*right.m8 + left.m3*right.m12; + result.m1 = left.m0*right.m1 + left.m1*right.m5 + left.m2*right.m9 + left.m3*right.m13; + result.m2 = left.m0*right.m2 + left.m1*right.m6 + left.m2*right.m10 + left.m3*right.m14; + result.m3 = left.m0*right.m3 + left.m1*right.m7 + left.m2*right.m11 + left.m3*right.m15; + result.m4 = left.m4*right.m0 + left.m5*right.m4 + left.m6*right.m8 + left.m7*right.m12; + result.m5 = left.m4*right.m1 + left.m5*right.m5 + left.m6*right.m9 + left.m7*right.m13; + result.m6 = left.m4*right.m2 + left.m5*right.m6 + left.m6*right.m10 + left.m7*right.m14; + result.m7 = left.m4*right.m3 + left.m5*right.m7 + left.m6*right.m11 + left.m7*right.m15; + result.m8 = left.m8*right.m0 + left.m9*right.m4 + left.m10*right.m8 + left.m11*right.m12; + result.m9 = left.m8*right.m1 + left.m9*right.m5 + left.m10*right.m9 + left.m11*right.m13; + result.m10 = left.m8*right.m2 + left.m9*right.m6 + left.m10*right.m10 + left.m11*right.m14; + result.m11 = left.m8*right.m3 + left.m9*right.m7 + left.m10*right.m11 + left.m11*right.m15; + result.m12 = left.m12*right.m0 + left.m13*right.m4 + left.m14*right.m8 + left.m15*right.m12; + result.m13 = left.m12*right.m1 + left.m13*right.m5 + left.m14*right.m9 + left.m15*right.m13; + result.m14 = left.m12*right.m2 + left.m13*right.m6 + left.m14*right.m10 + left.m15*right.m14; + result.m15 = left.m12*right.m3 + left.m13*right.m7 + left.m14*right.m11 + left.m15*right.m15; + + return result; +} + +// Transposes provided matrix +static Matrix rlMatrixTranspose(Matrix mat) +{ + Matrix result = { 0 }; + + result.m0 = mat.m0; + result.m1 = mat.m4; + result.m2 = mat.m8; + result.m3 = mat.m12; + result.m4 = mat.m1; + result.m5 = mat.m5; + result.m6 = mat.m9; + result.m7 = mat.m13; + result.m8 = mat.m2; + result.m9 = mat.m6; + result.m10 = mat.m10; + result.m11 = mat.m14; + result.m12 = mat.m3; + result.m13 = mat.m7; + result.m14 = mat.m11; + result.m15 = mat.m15; + + return result; +} + +// Invert provided matrix +static Matrix rlMatrixInvert(Matrix mat) +{ + Matrix result = { 0 }; + + // Cache the matrix values (speed optimization) + float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3; + float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7; + float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11; + float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15; + + float b00 = a00*a11 - a01*a10; + float b01 = a00*a12 - a02*a10; + float b02 = a00*a13 - a03*a10; + float b03 = a01*a12 - a02*a11; + float b04 = a01*a13 - a03*a11; + float b05 = a02*a13 - a03*a12; + float b06 = a20*a31 - a21*a30; + float b07 = a20*a32 - a22*a30; + float b08 = a20*a33 - a23*a30; + float b09 = a21*a32 - a22*a31; + float b10 = a21*a33 - a23*a31; + float b11 = a22*a33 - a23*a32; + + // Calculate the invert determinant (inlined to avoid double-caching) + float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06); + + result.m0 = (a11*b11 - a12*b10 + a13*b09)*invDet; + result.m1 = (-a01*b11 + a02*b10 - a03*b09)*invDet; + result.m2 = (a31*b05 - a32*b04 + a33*b03)*invDet; + result.m3 = (-a21*b05 + a22*b04 - a23*b03)*invDet; + result.m4 = (-a10*b11 + a12*b08 - a13*b07)*invDet; + result.m5 = (a00*b11 - a02*b08 + a03*b07)*invDet; + result.m6 = (-a30*b05 + a32*b02 - a33*b01)*invDet; + result.m7 = (a20*b05 - a22*b02 + a23*b01)*invDet; + result.m8 = (a10*b10 - a11*b08 + a13*b06)*invDet; + result.m9 = (-a00*b10 + a01*b08 - a03*b06)*invDet; + result.m10 = (a30*b04 - a31*b02 + a33*b00)*invDet; + result.m11 = (-a20*b04 + a21*b02 - a23*b00)*invDet; + result.m12 = (-a10*b09 + a11*b07 - a12*b06)*invDet; + result.m13 = (a00*b09 - a01*b07 + a02*b06)*invDet; + result.m14 = (-a30*b03 + a31*b01 - a32*b00)*invDet; + result.m15 = (a20*b03 - a21*b01 + a22*b00)*invDet; + + return result; +} +#endif + +#endif // RLGL_IMPLEMENTATION diff --git a/SlLinux/include/stb_ds.h b/SlLinux/include/stb_ds.h new file mode 100644 index 0000000..e84c82d --- /dev/null +++ b/SlLinux/include/stb_ds.h @@ -0,0 +1,1895 @@ +/* stb_ds.h - v0.67 - public domain data structures - Sean Barrett 2019 + + This is a single-header-file library that provides easy-to-use + dynamic arrays and hash tables for C (also works in C++). + + For a gentle introduction: + http://nothings.org/stb_ds + + To use this library, do this in *one* C or C++ file: + #define STB_DS_IMPLEMENTATION + #include "stb_ds.h" + +TABLE OF CONTENTS + + Table of Contents + Compile-time options + License + Documentation + Notes + Notes - Dynamic arrays + Notes - Hash maps + Credits + +COMPILE-TIME OPTIONS + + #define STBDS_NO_SHORT_NAMES + + This flag needs to be set globally. + + By default stb_ds exposes shorter function names that are not qualified + with the "stbds_" prefix. If these names conflict with the names in your + code, define this flag. + + #define STBDS_SIPHASH_2_4 + + This flag only needs to be set in the file containing #define STB_DS_IMPLEMENTATION. + + By default stb_ds.h hashes using a weaker variant of SipHash and a custom hash for + 4- and 8-byte keys. On 64-bit platforms, you can define the above flag to force + stb_ds.h to use specification-compliant SipHash-2-4 for all keys. Doing so makes + hash table insertion about 20% slower on 4- and 8-byte keys, 5% slower on + 64-byte keys, and 10% slower on 256-byte keys on my test computer. + + #define STBDS_REALLOC(context,ptr,size) better_realloc + #define STBDS_FREE(context,ptr) better_free + + These defines only need to be set in the file containing #define STB_DS_IMPLEMENTATION. + + By default stb_ds uses stdlib realloc() and free() for memory management. You can + substitute your own functions instead by defining these symbols. You must either + define both, or neither. Note that at the moment, 'context' will always be NULL. + @TODO add an array/hash initialization function that takes a memory context pointer. + + #define STBDS_UNIT_TESTS + + Defines a function stbds_unit_tests() that checks the functioning of the data structures. + + Note that on older versions of gcc (e.g. 5.x.x) you may need to build with '-std=c++0x' + (or equivalentally '-std=c++11') when using anonymous structures as seen on the web + page or in STBDS_UNIT_TESTS. + +LICENSE + + Placed in the public domain and also MIT licensed. + See end of file for detailed license information. + +DOCUMENTATION + + Dynamic Arrays + + Non-function interface: + + Declare an empty dynamic array of type T + T* foo = NULL; + + Access the i'th item of a dynamic array 'foo' of type T, T* foo: + foo[i] + + Functions (actually macros) + + arrfree: + void arrfree(T*); + Frees the array. + + arrlen: + ptrdiff_t arrlen(T*); + Returns the number of elements in the array. + + arrlenu: + size_t arrlenu(T*); + Returns the number of elements in the array as an unsigned type. + + arrpop: + T arrpop(T* a) + Removes the final element of the array and returns it. + + arrput: + T arrput(T* a, T b); + Appends the item b to the end of array a. Returns b. + + arrins: + T arrins(T* a, int p, T b); + Inserts the item b into the middle of array a, into a[p], + moving the rest of the array over. Returns b. + + arrinsn: + void arrinsn(T* a, int p, int n); + Inserts n uninitialized items into array a starting at a[p], + moving the rest of the array over. + + arraddnptr: + T* arraddnptr(T* a, int n) + Appends n uninitialized items onto array at the end. + Returns a pointer to the first uninitialized item added. + + arraddnindex: + size_t arraddnindex(T* a, int n) + Appends n uninitialized items onto array at the end. + Returns the index of the first uninitialized item added. + + arrdel: + void arrdel(T* a, int p); + Deletes the element at a[p], moving the rest of the array over. + + arrdeln: + void arrdeln(T* a, int p, int n); + Deletes n elements starting at a[p], moving the rest of the array over. + + arrdelswap: + void arrdelswap(T* a, int p); + Deletes the element at a[p], replacing it with the element from + the end of the array. O(1) performance. + + arrsetlen: + void arrsetlen(T* a, int n); + Changes the length of the array to n. Allocates uninitialized + slots at the end if necessary. + + arrsetcap: + size_t arrsetcap(T* a, int n); + Sets the length of allocated storage to at least n. It will not + change the length of the array. + + arrcap: + size_t arrcap(T* a); + Returns the number of total elements the array can contain without + needing to be reallocated. + + Hash maps & String hash maps + + Given T is a structure type: struct { TK key; TV value; }. Note that some + functions do not require TV value and can have other fields. For string + hash maps, TK must be 'char *'. + + Special interface: + + stbds_rand_seed: + void stbds_rand_seed(size_t seed); + For security against adversarially chosen data, you should seed the + library with a strong random number. Or at least seed it with time(). + + stbds_hash_string: + size_t stbds_hash_string(char *str, size_t seed); + Returns a hash value for a string. + + stbds_hash_bytes: + size_t stbds_hash_bytes(void *p, size_t len, size_t seed); + These functions hash an arbitrary number of bytes. The function + uses a custom hash for 4- and 8-byte data, and a weakened version + of SipHash for everything else. On 64-bit platforms you can get + specification-compliant SipHash-2-4 on all data by defining + STBDS_SIPHASH_2_4, at a significant cost in speed. + + Non-function interface: + + Declare an empty hash map of type T + T* foo = NULL; + + Access the i'th entry in a hash table T* foo: + foo[i] + + Function interface (actually macros): + + hmfree + shfree + void hmfree(T*); + void shfree(T*); + Frees the hashmap and sets the pointer to NULL. + + hmlen + shlen + ptrdiff_t hmlen(T*) + ptrdiff_t shlen(T*) + Returns the number of elements in the hashmap. + + hmlenu + shlenu + size_t hmlenu(T*) + size_t shlenu(T*) + Returns the number of elements in the hashmap. + + hmgeti + shgeti + hmgeti_ts + ptrdiff_t hmgeti(T*, TK key) + ptrdiff_t shgeti(T*, char* key) + ptrdiff_t hmgeti_ts(T*, TK key, ptrdiff_t tempvar) + Returns the index in the hashmap which has the key 'key', or -1 + if the key is not present. + + hmget + hmget_ts + shget + TV hmget(T*, TK key) + TV shget(T*, char* key) + TV hmget_ts(T*, TK key, ptrdiff_t tempvar) + Returns the value corresponding to 'key' in the hashmap. + The structure must have a 'value' field + + hmgets + shgets + T hmgets(T*, TK key) + T shgets(T*, char* key) + Returns the structure corresponding to 'key' in the hashmap. + + hmgetp + shgetp + hmgetp_ts + hmgetp_null + shgetp_null + T* hmgetp(T*, TK key) + T* shgetp(T*, char* key) + T* hmgetp_ts(T*, TK key, ptrdiff_t tempvar) + T* hmgetp_null(T*, TK key) + T* shgetp_null(T*, char *key) + Returns a pointer to the structure corresponding to 'key' in + the hashmap. Functions ending in "_null" return NULL if the key + is not present in the hashmap; the others return a pointer to a + structure holding the default value (but not the searched-for key). + + hmdefault + shdefault + TV hmdefault(T*, TV value) + TV shdefault(T*, TV value) + Sets the default value for the hashmap, the value which will be + returned by hmget/shget if the key is not present. + + hmdefaults + shdefaults + TV hmdefaults(T*, T item) + TV shdefaults(T*, T item) + Sets the default struct for the hashmap, the contents which will be + returned by hmgets/shgets if the key is not present. + + hmput + shput + TV hmput(T*, TK key, TV value) + TV shput(T*, char* key, TV value) + Inserts a pair into the hashmap. If the key is already + present in the hashmap, updates its value. + + hmputs + shputs + T hmputs(T*, T item) + T shputs(T*, T item) + Inserts a struct with T.key into the hashmap. If the struct is already + present in the hashmap, updates it. + + hmdel + shdel + int hmdel(T*, TK key) + int shdel(T*, char* key) + If 'key' is in the hashmap, deletes its entry and returns 1. + Otherwise returns 0. + + Function interface (actually macros) for strings only: + + sh_new_strdup + void sh_new_strdup(T*); + Overwrites the existing pointer with a newly allocated + string hashmap which will automatically allocate and free + each string key using realloc/free + + sh_new_arena + void sh_new_arena(T*); + Overwrites the existing pointer with a newly allocated + string hashmap which will automatically allocate each string + key to a string arena. Every string key ever used by this + hash table remains in the arena until the arena is freed. + Additionally, any key which is deleted and reinserted will + be allocated multiple times in the string arena. + +NOTES + + * These data structures are realloc'd when they grow, and the macro + "functions" write to the provided pointer. This means: (a) the pointer + must be an lvalue, and (b) the pointer to the data structure is not + stable, and you must maintain it the same as you would a realloc'd + pointer. For example, if you pass a pointer to a dynamic array to a + function which updates it, the function must return back the new + pointer to the caller. This is the price of trying to do this in C. + + * The following are the only functions that are thread-safe on a single data + structure, i.e. can be run in multiple threads simultaneously on the same + data structure + hmlen shlen + hmlenu shlenu + hmget_ts shget_ts + hmgeti_ts shgeti_ts + hmgets_ts shgets_ts + + * You iterate over the contents of a dynamic array and a hashmap in exactly + the same way, using arrlen/hmlen/shlen: + + for (i=0; i < arrlen(foo); ++i) + ... foo[i] ... + + * All operations except arrins/arrdel are O(1) amortized, but individual + operations can be slow, so these data structures may not be suitable + for real time use. Dynamic arrays double in capacity as needed, so + elements are copied an average of once. Hash tables double/halve + their size as needed, with appropriate hysteresis to maintain O(1) + performance. + +NOTES - DYNAMIC ARRAY + + * If you know how long a dynamic array is going to be in advance, you can avoid + extra memory allocations by using arrsetlen to allocate it to that length in + advance and use foo[n] while filling it out, or arrsetcap to allocate the memory + for that length and use arrput/arrpush as normal. + + * Unlike some other versions of the dynamic array, this version should + be safe to use with strict-aliasing optimizations. + +NOTES - HASH MAP + + * For compilers other than GCC and clang (e.g. Visual Studio), for hmput/hmget/hmdel + and variants, the key must be an lvalue (so the macro can take the address of it). + Extensions are used that eliminate this requirement if you're using C99 and later + in GCC or clang, or if you're using C++ in GCC. But note that this can make your + code less portable. + + * To test for presence of a key in a hashmap, just do 'hmgeti(foo,key) >= 0'. + + * The iteration order of your data in the hashmap is determined solely by the + order of insertions and deletions. In particular, if you never delete, new + keys are always added at the end of the array. This will be consistent + across all platforms and versions of the library. However, you should not + attempt to serialize the internal hash table, as the hash is not consistent + between different platforms, and may change with future versions of the library. + + * Use sh_new_arena() for string hashmaps that you never delete from. Initialize + with NULL if you're managing the memory for your strings, or your strings are + never freed (at least until the hashmap is freed). Otherwise, use sh_new_strdup(). + @TODO: make an arena variant that garbage collects the strings with a trivial + copy collector into a new arena whenever the table shrinks / rebuilds. Since + current arena recommendation is to only use arena if it never deletes, then + this can just replace current arena implementation. + + * If adversarial input is a serious concern and you're on a 64-bit platform, + enable STBDS_SIPHASH_2_4 (see the 'Compile-time options' section), and pass + a strong random number to stbds_rand_seed. + + * The default value for the hash table is stored in foo[-1], so if you + use code like 'hmget(T,k)->value = 5' you can accidentally overwrite + the value stored by hmdefault if 'k' is not present. + +CREDITS + + Sean Barrett -- library, idea for dynamic array API/implementation + Per Vognsen -- idea for hash table API/implementation + Rafael Sachetto -- arrpop() + github:HeroicKatora -- arraddn() reworking + + Bugfixes: + Andy Durdin + Shane Liesegang + Vinh Truong + Andreas Molzer + github:hashitaku + github:srdjanstipic + Macoy Madson + Andreas Vennstrom + Tobias Mansfield-Williams +*/ + +#ifdef STBDS_UNIT_TESTS +#define _CRT_SECURE_NO_WARNINGS +#endif + +#ifndef INCLUDE_STB_DS_H +#define INCLUDE_STB_DS_H + +#include +#include + +#ifndef STBDS_NO_SHORT_NAMES +#define arrlen stbds_arrlen +#define arrlenu stbds_arrlenu +#define arrput stbds_arrput +#define arrpush stbds_arrput +#define arrpop stbds_arrpop +#define arrfree stbds_arrfree +#define arraddn stbds_arraddn // deprecated, use one of the following instead: +#define arraddnptr stbds_arraddnptr +#define arraddnindex stbds_arraddnindex +#define arrsetlen stbds_arrsetlen +#define arrlast stbds_arrlast +#define arrins stbds_arrins +#define arrinsn stbds_arrinsn +#define arrdel stbds_arrdel +#define arrdeln stbds_arrdeln +#define arrdelswap stbds_arrdelswap +#define arrcap stbds_arrcap +#define arrsetcap stbds_arrsetcap + +#define hmput stbds_hmput +#define hmputs stbds_hmputs +#define hmget stbds_hmget +#define hmget_ts stbds_hmget_ts +#define hmgets stbds_hmgets +#define hmgetp stbds_hmgetp +#define hmgetp_ts stbds_hmgetp_ts +#define hmgetp_null stbds_hmgetp_null +#define hmgeti stbds_hmgeti +#define hmgeti_ts stbds_hmgeti_ts +#define hmdel stbds_hmdel +#define hmlen stbds_hmlen +#define hmlenu stbds_hmlenu +#define hmfree stbds_hmfree +#define hmdefault stbds_hmdefault +#define hmdefaults stbds_hmdefaults + +#define shput stbds_shput +#define shputi stbds_shputi +#define shputs stbds_shputs +#define shget stbds_shget +#define shgeti stbds_shgeti +#define shgets stbds_shgets +#define shgetp stbds_shgetp +#define shgetp_null stbds_shgetp_null +#define shdel stbds_shdel +#define shlen stbds_shlen +#define shlenu stbds_shlenu +#define shfree stbds_shfree +#define shdefault stbds_shdefault +#define shdefaults stbds_shdefaults +#define sh_new_arena stbds_sh_new_arena +#define sh_new_strdup stbds_sh_new_strdup + +#define stralloc stbds_stralloc +#define strreset stbds_strreset +#endif + +#if defined(STBDS_REALLOC) && !defined(STBDS_FREE) || !defined(STBDS_REALLOC) && defined(STBDS_FREE) +#error "You must define both STBDS_REALLOC and STBDS_FREE, or neither." +#endif +#if !defined(STBDS_REALLOC) && !defined(STBDS_FREE) +#include +#define STBDS_REALLOC(c,p,s) realloc(p,s) +#define STBDS_FREE(c,p) free(p) +#endif + +#ifdef _MSC_VER +#define STBDS_NOTUSED(v) (void)(v) +#else +#define STBDS_NOTUSED(v) (void)sizeof(v) +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +// for security against attackers, seed the library with a random number, at least time() but stronger is better +extern void stbds_rand_seed(size_t seed); + +// these are the hash functions used internally if you want to test them or use them for other purposes +extern size_t stbds_hash_bytes(void *p, size_t len, size_t seed); +extern size_t stbds_hash_string(char *str, size_t seed); + +// this is a simple string arena allocator, initialize with e.g. 'stbds_string_arena my_arena={0}'. +typedef struct stbds_string_arena stbds_string_arena; +extern char * stbds_stralloc(stbds_string_arena *a, char *str); +extern void stbds_strreset(stbds_string_arena *a); + +// have to #define STBDS_UNIT_TESTS to call this +extern void stbds_unit_tests(void); + +/////////////// +// +// Everything below here is implementation details +// + +extern void * stbds_arrgrowf(void *a, size_t elemsize, size_t addlen, size_t min_cap); +extern void stbds_arrfreef(void *a); +extern void stbds_hmfree_func(void *p, size_t elemsize); +extern void * stbds_hmget_key(void *a, size_t elemsize, void *key, size_t keysize, int mode); +extern void * stbds_hmget_key_ts(void *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode); +extern void * stbds_hmput_default(void *a, size_t elemsize); +extern void * stbds_hmput_key(void *a, size_t elemsize, void *key, size_t keysize, int mode); +extern void * stbds_hmdel_key(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode); +extern void * stbds_shmode_func(size_t elemsize, int mode); + +#ifdef __cplusplus +} +#endif + +#if defined(__GNUC__) || defined(__clang__) +#define STBDS_HAS_TYPEOF +#ifdef __cplusplus +//#define STBDS_HAS_LITERAL_ARRAY // this is currently broken for clang +#endif +#endif + +#if !defined(__cplusplus) +#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L +#define STBDS_HAS_LITERAL_ARRAY +#endif +#endif + +// this macro takes the address of the argument, but on gcc/clang can accept rvalues +#if defined(STBDS_HAS_LITERAL_ARRAY) && defined(STBDS_HAS_TYPEOF) + #if __clang__ + #define STBDS_ADDRESSOF(typevar, value) ((__typeof__(typevar)[1]){value}) // literal array decays to pointer to value + #else + #define STBDS_ADDRESSOF(typevar, value) ((typeof(typevar)[1]){value}) // literal array decays to pointer to value + #endif +#else +#define STBDS_ADDRESSOF(typevar, value) &(value) +#endif + +#define STBDS_OFFSETOF(var,field) ((char *) &(var)->field - (char *) (var)) + +#define stbds_header(t) ((stbds_array_header *) (t) - 1) +#define stbds_temp(t) stbds_header(t)->temp +#define stbds_temp_key(t) (*(char **) stbds_header(t)->hash_table) + +#define stbds_arrsetcap(a,n) (stbds_arrgrow(a,0,n)) +#define stbds_arrsetlen(a,n) ((stbds_arrcap(a) < (size_t) (n) ? stbds_arrsetcap((a),(size_t)(n)),0 : 0), (a) ? stbds_header(a)->length = (size_t) (n) : 0) +#define stbds_arrcap(a) ((a) ? stbds_header(a)->capacity : 0) +#define stbds_arrlen(a) ((a) ? (ptrdiff_t) stbds_header(a)->length : 0) +#define stbds_arrlenu(a) ((a) ? stbds_header(a)->length : 0) +#define stbds_arrput(a,v) (stbds_arrmaybegrow(a,1), (a)[stbds_header(a)->length++] = (v)) +#define stbds_arrpush stbds_arrput // synonym +#define stbds_arrpop(a) (stbds_header(a)->length--, (a)[stbds_header(a)->length]) +#define stbds_arraddn(a,n) ((void)(stbds_arraddnindex(a, n))) // deprecated, use one of the following instead: +#define stbds_arraddnptr(a,n) (stbds_arrmaybegrow(a,n), (n) ? (stbds_header(a)->length += (n), &(a)[stbds_header(a)->length-(n)]) : (a)) +#define stbds_arraddnindex(a,n)(stbds_arrmaybegrow(a,n), (n) ? (stbds_header(a)->length += (n), stbds_header(a)->length-(n)) : stbds_arrlen(a)) +#define stbds_arraddnoff stbds_arraddnindex +#define stbds_arrlast(a) ((a)[stbds_header(a)->length-1]) +#define stbds_arrfree(a) ((void) ((a) ? STBDS_FREE(NULL,stbds_header(a)) : (void)0), (a)=NULL) +#define stbds_arrdel(a,i) stbds_arrdeln(a,i,1) +#define stbds_arrdeln(a,i,n) (memmove(&(a)[i], &(a)[(i)+(n)], sizeof *(a) * (stbds_header(a)->length-(n)-(i))), stbds_header(a)->length -= (n)) +#define stbds_arrdelswap(a,i) ((a)[i] = stbds_arrlast(a), stbds_header(a)->length -= 1) +#define stbds_arrinsn(a,i,n) (stbds_arraddn((a),(n)), memmove(&(a)[(i)+(n)], &(a)[i], sizeof *(a) * (stbds_header(a)->length-(n)-(i)))) +#define stbds_arrins(a,i,v) (stbds_arrinsn((a),(i),1), (a)[i]=(v)) + +#define stbds_arrmaybegrow(a,n) ((!(a) || stbds_header(a)->length + (n) > stbds_header(a)->capacity) \ + ? (stbds_arrgrow(a,n,0),0) : 0) + +#define stbds_arrgrow(a,b,c) ((a) = stbds_arrgrowf_wrapper((a), sizeof *(a), (b), (c))) + +#define stbds_hmput(t, k, v) \ + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, 0), \ + (t)[stbds_temp((t)-1)].key = (k), \ + (t)[stbds_temp((t)-1)].value = (v)) + +#define stbds_hmputs(t, s) \ + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), &(s).key, sizeof (s).key, STBDS_HM_BINARY), \ + (t)[stbds_temp((t)-1)] = (s)) + +#define stbds_hmgeti(t,k) \ + ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, STBDS_HM_BINARY), \ + stbds_temp((t)-1)) + +#define stbds_hmgeti_ts(t,k,temp) \ + ((t) = stbds_hmget_key_ts_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, &(temp), STBDS_HM_BINARY), \ + (temp)) + +#define stbds_hmgetp(t, k) \ + ((void) stbds_hmgeti(t,k), &(t)[stbds_temp((t)-1)]) + +#define stbds_hmgetp_ts(t, k, temp) \ + ((void) stbds_hmgeti_ts(t,k,temp), &(t)[temp]) + +#define stbds_hmdel(t,k) \ + (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, STBDS_OFFSETOF((t),key), STBDS_HM_BINARY)),(t)?stbds_temp((t)-1):0) + +#define stbds_hmdefault(t, v) \ + ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1].value = (v)) + +#define stbds_hmdefaults(t, s) \ + ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1] = (s)) + +#define stbds_hmfree(p) \ + ((void) ((p) != NULL ? stbds_hmfree_func((p)-1,sizeof*(p)),0 : 0),(p)=NULL) + +#define stbds_hmgets(t, k) (*stbds_hmgetp(t,k)) +#define stbds_hmget(t, k) (stbds_hmgetp(t,k)->value) +#define stbds_hmget_ts(t, k, temp) (stbds_hmgetp_ts(t,k,temp)->value) +#define stbds_hmlen(t) ((t) ? (ptrdiff_t) stbds_header((t)-1)->length-1 : 0) +#define stbds_hmlenu(t) ((t) ? stbds_header((t)-1)->length-1 : 0) +#define stbds_hmgetp_null(t,k) (stbds_hmgeti(t,k) == -1 ? NULL : &(t)[stbds_temp((t)-1)]) + +#define stbds_shput(t, k, v) \ + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \ + (t)[stbds_temp((t)-1)].value = (v)) + +#define stbds_shputi(t, k, v) \ + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \ + (t)[stbds_temp((t)-1)].value = (v), stbds_temp((t)-1)) + +#define stbds_shputs(t, s) \ + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (s).key, sizeof (s).key, STBDS_HM_STRING), \ + (t)[stbds_temp((t)-1)] = (s), \ + (t)[stbds_temp((t)-1)].key = stbds_temp_key((t)-1)) // above line overwrites whole structure, so must rewrite key here if it was allocated internally + +#define stbds_pshput(t, p) \ + ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (p)->key, sizeof (p)->key, STBDS_HM_PTR_TO_STRING), \ + (t)[stbds_temp((t)-1)] = (p)) + +#define stbds_shgeti(t,k) \ + ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \ + stbds_temp((t)-1)) + +#define stbds_pshgeti(t,k) \ + ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (*(t))->key, STBDS_HM_PTR_TO_STRING), \ + stbds_temp((t)-1)) + +#define stbds_shgetp(t, k) \ + ((void) stbds_shgeti(t,k), &(t)[stbds_temp((t)-1)]) + +#define stbds_pshget(t, k) \ + ((void) stbds_pshgeti(t,k), (t)[stbds_temp((t)-1)]) + +#define stbds_shdel(t,k) \ + (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_OFFSETOF((t),key), STBDS_HM_STRING)),(t)?stbds_temp((t)-1):0) +#define stbds_pshdel(t,k) \ + (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) (k), sizeof (*(t))->key, STBDS_OFFSETOF(*(t),key), STBDS_HM_PTR_TO_STRING)),(t)?stbds_temp((t)-1):0) + +#define stbds_sh_new_arena(t) \ + ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_ARENA)) +#define stbds_sh_new_strdup(t) \ + ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_STRDUP)) + +#define stbds_shdefault(t, v) stbds_hmdefault(t,v) +#define stbds_shdefaults(t, s) stbds_hmdefaults(t,s) + +#define stbds_shfree stbds_hmfree +#define stbds_shlenu stbds_hmlenu + +#define stbds_shgets(t, k) (*stbds_shgetp(t,k)) +#define stbds_shget(t, k) (stbds_shgetp(t,k)->value) +#define stbds_shgetp_null(t,k) (stbds_shgeti(t,k) == -1 ? NULL : &(t)[stbds_temp((t)-1)]) +#define stbds_shlen stbds_hmlen + +typedef struct +{ + size_t length; + size_t capacity; + void * hash_table; + ptrdiff_t temp; +} stbds_array_header; + +typedef struct stbds_string_block +{ + struct stbds_string_block *next; + char storage[8]; +} stbds_string_block; + +struct stbds_string_arena +{ + stbds_string_block *storage; + size_t remaining; + unsigned char block; + unsigned char mode; // this isn't used by the string arena itself +}; + +#define STBDS_HM_BINARY 0 +#define STBDS_HM_STRING 1 + +enum +{ + STBDS_SH_NONE, + STBDS_SH_DEFAULT, + STBDS_SH_STRDUP, + STBDS_SH_ARENA +}; + +#ifdef __cplusplus +// in C we use implicit assignment from these void*-returning functions to T*. +// in C++ these templates make the same code work +template static T * stbds_arrgrowf_wrapper(T *a, size_t elemsize, size_t addlen, size_t min_cap) { + return (T*)stbds_arrgrowf((void *)a, elemsize, addlen, min_cap); +} +template static T * stbds_hmget_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, int mode) { + return (T*)stbds_hmget_key((void*)a, elemsize, key, keysize, mode); +} +template static T * stbds_hmget_key_ts_wrapper(T *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode) { + return (T*)stbds_hmget_key_ts((void*)a, elemsize, key, keysize, temp, mode); +} +template static T * stbds_hmput_default_wrapper(T *a, size_t elemsize) { + return (T*)stbds_hmput_default((void *)a, elemsize); +} +template static T * stbds_hmput_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, int mode) { + return (T*)stbds_hmput_key((void*)a, elemsize, key, keysize, mode); +} +template static T * stbds_hmdel_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode){ + return (T*)stbds_hmdel_key((void*)a, elemsize, key, keysize, keyoffset, mode); +} +template static T * stbds_shmode_func_wrapper(T *, size_t elemsize, int mode) { + return (T*)stbds_shmode_func(elemsize, mode); +} +#else +#define stbds_arrgrowf_wrapper stbds_arrgrowf +#define stbds_hmget_key_wrapper stbds_hmget_key +#define stbds_hmget_key_ts_wrapper stbds_hmget_key_ts +#define stbds_hmput_default_wrapper stbds_hmput_default +#define stbds_hmput_key_wrapper stbds_hmput_key +#define stbds_hmdel_key_wrapper stbds_hmdel_key +#define stbds_shmode_func_wrapper(t,e,m) stbds_shmode_func(e,m) +#endif + +#endif // INCLUDE_STB_DS_H + + +////////////////////////////////////////////////////////////////////////////// +// +// IMPLEMENTATION +// + +#ifdef STB_DS_IMPLEMENTATION +#include +#include + +#ifndef STBDS_ASSERT +#define STBDS_ASSERT_WAS_UNDEFINED +#define STBDS_ASSERT(x) ((void) 0) +#endif + +#ifdef STBDS_STATISTICS +#define STBDS_STATS(x) x +size_t stbds_array_grow; +size_t stbds_hash_grow; +size_t stbds_hash_shrink; +size_t stbds_hash_rebuild; +size_t stbds_hash_probes; +size_t stbds_hash_alloc; +size_t stbds_rehash_probes; +size_t stbds_rehash_items; +#else +#define STBDS_STATS(x) +#endif + +// +// stbds_arr implementation +// + +//int *prev_allocs[65536]; +//int num_prev; + +void *stbds_arrgrowf(void *a, size_t elemsize, size_t addlen, size_t min_cap) +{ + stbds_array_header temp={0}; // force debugging + void *b; + size_t min_len = stbds_arrlen(a) + addlen; + (void) sizeof(temp); + + // compute the minimum capacity needed + if (min_len > min_cap) + min_cap = min_len; + + if (min_cap <= stbds_arrcap(a)) + return a; + + // increase needed capacity to guarantee O(1) amortized + if (min_cap < 2 * stbds_arrcap(a)) + min_cap = 2 * stbds_arrcap(a); + else if (min_cap < 4) + min_cap = 4; + + //if (num_prev < 65536) if (a) prev_allocs[num_prev++] = (int *) ((char *) a+1); + //if (num_prev == 2201) + // num_prev = num_prev; + b = STBDS_REALLOC(NULL, (a) ? stbds_header(a) : 0, elemsize * min_cap + sizeof(stbds_array_header)); + //if (num_prev < 65536) prev_allocs[num_prev++] = (int *) (char *) b; + b = (char *) b + sizeof(stbds_array_header); + if (a == NULL) { + stbds_header(b)->length = 0; + stbds_header(b)->hash_table = 0; + stbds_header(b)->temp = 0; + } else { + STBDS_STATS(++stbds_array_grow); + } + stbds_header(b)->capacity = min_cap; + + return b; +} + +void stbds_arrfreef(void *a) +{ + STBDS_FREE(NULL, stbds_header(a)); +} + +// +// stbds_hm hash table implementation +// + +#ifdef STBDS_INTERNAL_SMALL_BUCKET +#define STBDS_BUCKET_LENGTH 4 +#else +#define STBDS_BUCKET_LENGTH 8 +#endif + +#define STBDS_BUCKET_SHIFT (STBDS_BUCKET_LENGTH == 8 ? 3 : 2) +#define STBDS_BUCKET_MASK (STBDS_BUCKET_LENGTH-1) +#define STBDS_CACHE_LINE_SIZE 64 + +#define STBDS_ALIGN_FWD(n,a) (((n) + (a) - 1) & ~((a)-1)) + +typedef struct +{ + size_t hash [STBDS_BUCKET_LENGTH]; + ptrdiff_t index[STBDS_BUCKET_LENGTH]; +} stbds_hash_bucket; // in 32-bit, this is one 64-byte cache line; in 64-bit, each array is one 64-byte cache line + +typedef struct +{ + char * temp_key; // this MUST be the first field of the hash table + size_t slot_count; + size_t used_count; + size_t used_count_threshold; + size_t used_count_shrink_threshold; + size_t tombstone_count; + size_t tombstone_count_threshold; + size_t seed; + size_t slot_count_log2; + stbds_string_arena string; + stbds_hash_bucket *storage; // not a separate allocation, just 64-byte aligned storage after this struct +} stbds_hash_index; + +#define STBDS_INDEX_EMPTY -1 +#define STBDS_INDEX_DELETED -2 +#define STBDS_INDEX_IN_USE(x) ((x) >= 0) + +#define STBDS_HASH_EMPTY 0 +#define STBDS_HASH_DELETED 1 + +static size_t stbds_hash_seed=0x31415926; + +void stbds_rand_seed(size_t seed) +{ + stbds_hash_seed = seed; +} + +#define stbds_load_32_or_64(var, temp, v32, v64_hi, v64_lo) \ + temp = v64_lo ^ v32, temp <<= 16, temp <<= 16, temp >>= 16, temp >>= 16, /* discard if 32-bit */ \ + var = v64_hi, var <<= 16, var <<= 16, /* discard if 32-bit */ \ + var ^= temp ^ v32 + +#define STBDS_SIZE_T_BITS ((sizeof (size_t)) * 8) + +static size_t stbds_probe_position(size_t hash, size_t slot_count, size_t slot_log2) +{ + size_t pos; + STBDS_NOTUSED(slot_log2); + pos = hash & (slot_count-1); + #ifdef STBDS_INTERNAL_BUCKET_START + pos &= ~STBDS_BUCKET_MASK; + #endif + return pos; +} + +static size_t stbds_log2(size_t slot_count) +{ + size_t n=0; + while (slot_count > 1) { + slot_count >>= 1; + ++n; + } + return n; +} + +static stbds_hash_index *stbds_make_hash_index(size_t slot_count, stbds_hash_index *ot) +{ + stbds_hash_index *t; + t = (stbds_hash_index *) STBDS_REALLOC(NULL,0,(slot_count >> STBDS_BUCKET_SHIFT) * sizeof(stbds_hash_bucket) + sizeof(stbds_hash_index) + STBDS_CACHE_LINE_SIZE-1); + t->storage = (stbds_hash_bucket *) STBDS_ALIGN_FWD((size_t) (t+1), STBDS_CACHE_LINE_SIZE); + t->slot_count = slot_count; + t->slot_count_log2 = stbds_log2(slot_count); + t->tombstone_count = 0; + t->used_count = 0; + + #if 0 // A1 + t->used_count_threshold = slot_count*12/16; // if 12/16th of table is occupied, grow + t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild + t->used_count_shrink_threshold = slot_count* 4/16; // if table is only 4/16th full, shrink + #elif 1 // A2 + //t->used_count_threshold = slot_count*12/16; // if 12/16th of table is occupied, grow + //t->tombstone_count_threshold = slot_count* 3/16; // if tombstones are 3/16th of table, rebuild + //t->used_count_shrink_threshold = slot_count* 4/16; // if table is only 4/16th full, shrink + + // compute without overflowing + t->used_count_threshold = slot_count - (slot_count>>2); + t->tombstone_count_threshold = (slot_count>>3) + (slot_count>>4); + t->used_count_shrink_threshold = slot_count >> 2; + + #elif 0 // B1 + t->used_count_threshold = slot_count*13/16; // if 13/16th of table is occupied, grow + t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild + t->used_count_shrink_threshold = slot_count* 5/16; // if table is only 5/16th full, shrink + #else // C1 + t->used_count_threshold = slot_count*14/16; // if 14/16th of table is occupied, grow + t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild + t->used_count_shrink_threshold = slot_count* 6/16; // if table is only 6/16th full, shrink + #endif + // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2 + // Note that the larger tables have high variance as they were run fewer times + // A1 A2 B1 C1 + // 0.10ms : 0.10ms : 0.10ms : 0.11ms : 2,000 inserts creating 2K table + // 0.96ms : 0.95ms : 0.97ms : 1.04ms : 20,000 inserts creating 20K table + // 14.48ms : 14.46ms : 10.63ms : 11.00ms : 200,000 inserts creating 200K table + // 195.74ms : 196.35ms : 203.69ms : 214.92ms : 2,000,000 inserts creating 2M table + // 2193.88ms : 2209.22ms : 2285.54ms : 2437.17ms : 20,000,000 inserts creating 20M table + // 65.27ms : 53.77ms : 65.33ms : 65.47ms : 500,000 inserts & deletes in 2K table + // 72.78ms : 62.45ms : 71.95ms : 72.85ms : 500,000 inserts & deletes in 20K table + // 89.47ms : 77.72ms : 96.49ms : 96.75ms : 500,000 inserts & deletes in 200K table + // 97.58ms : 98.14ms : 97.18ms : 97.53ms : 500,000 inserts & deletes in 2M table + // 118.61ms : 119.62ms : 120.16ms : 118.86ms : 500,000 inserts & deletes in 20M table + // 192.11ms : 194.39ms : 196.38ms : 195.73ms : 500,000 inserts & deletes in 200M table + + if (slot_count <= STBDS_BUCKET_LENGTH) + t->used_count_shrink_threshold = 0; + // to avoid infinite loop, we need to guarantee that at least one slot is empty and will terminate probes + STBDS_ASSERT(t->used_count_threshold + t->tombstone_count_threshold < t->slot_count); + STBDS_STATS(++stbds_hash_alloc); + if (ot) { + t->string = ot->string; + // reuse old seed so we can reuse old hashes so below "copy out old data" doesn't do any hashing + t->seed = ot->seed; + } else { + size_t a,b,temp; + memset(&t->string, 0, sizeof(t->string)); + t->seed = stbds_hash_seed; + // LCG + // in 32-bit, a = 2147001325 b = 715136305 + // in 64-bit, a = 2862933555777941757 b = 3037000493 + stbds_load_32_or_64(a,temp, 2147001325, 0x27bb2ee6, 0x87b0b0fd); + stbds_load_32_or_64(b,temp, 715136305, 0, 0xb504f32d); + stbds_hash_seed = stbds_hash_seed * a + b; + } + + { + size_t i,j; + for (i=0; i < slot_count >> STBDS_BUCKET_SHIFT; ++i) { + stbds_hash_bucket *b = &t->storage[i]; + for (j=0; j < STBDS_BUCKET_LENGTH; ++j) + b->hash[j] = STBDS_HASH_EMPTY; + for (j=0; j < STBDS_BUCKET_LENGTH; ++j) + b->index[j] = STBDS_INDEX_EMPTY; + } + } + + // copy out the old data, if any + if (ot) { + size_t i,j; + t->used_count = ot->used_count; + for (i=0; i < ot->slot_count >> STBDS_BUCKET_SHIFT; ++i) { + stbds_hash_bucket *ob = &ot->storage[i]; + for (j=0; j < STBDS_BUCKET_LENGTH; ++j) { + if (STBDS_INDEX_IN_USE(ob->index[j])) { + size_t hash = ob->hash[j]; + size_t pos = stbds_probe_position(hash, t->slot_count, t->slot_count_log2); + size_t step = STBDS_BUCKET_LENGTH; + STBDS_STATS(++stbds_rehash_items); + for (;;) { + size_t limit,z; + stbds_hash_bucket *bucket; + bucket = &t->storage[pos >> STBDS_BUCKET_SHIFT]; + STBDS_STATS(++stbds_rehash_probes); + + for (z=pos & STBDS_BUCKET_MASK; z < STBDS_BUCKET_LENGTH; ++z) { + if (bucket->hash[z] == 0) { + bucket->hash[z] = hash; + bucket->index[z] = ob->index[j]; + goto done; + } + } + + limit = pos & STBDS_BUCKET_MASK; + for (z = 0; z < limit; ++z) { + if (bucket->hash[z] == 0) { + bucket->hash[z] = hash; + bucket->index[z] = ob->index[j]; + goto done; + } + } + + pos += step; // quadratic probing + step += STBDS_BUCKET_LENGTH; + pos &= (t->slot_count-1); + } + } + done: + ; + } + } + } + + return t; +} + +#define STBDS_ROTATE_LEFT(val, n) (((val) << (n)) | ((val) >> (STBDS_SIZE_T_BITS - (n)))) +#define STBDS_ROTATE_RIGHT(val, n) (((val) >> (n)) | ((val) << (STBDS_SIZE_T_BITS - (n)))) + +size_t stbds_hash_string(char *str, size_t seed) +{ + size_t hash = seed; + while (*str) + hash = STBDS_ROTATE_LEFT(hash, 9) + (unsigned char) *str++; + + // Thomas Wang 64-to-32 bit mix function, hopefully also works in 32 bits + hash ^= seed; + hash = (~hash) + (hash << 18); + hash ^= hash ^ STBDS_ROTATE_RIGHT(hash,31); + hash = hash * 21; + hash ^= hash ^ STBDS_ROTATE_RIGHT(hash,11); + hash += (hash << 6); + hash ^= STBDS_ROTATE_RIGHT(hash,22); + return hash+seed; +} + +#ifdef STBDS_SIPHASH_2_4 +#define STBDS_SIPHASH_C_ROUNDS 2 +#define STBDS_SIPHASH_D_ROUNDS 4 +typedef int STBDS_SIPHASH_2_4_can_only_be_used_in_64_bit_builds[sizeof(size_t) == 8 ? 1 : -1]; +#endif + +#ifndef STBDS_SIPHASH_C_ROUNDS +#define STBDS_SIPHASH_C_ROUNDS 1 +#endif +#ifndef STBDS_SIPHASH_D_ROUNDS +#define STBDS_SIPHASH_D_ROUNDS 1 +#endif + +#ifdef _MSC_VER +#pragma warning(push) +#pragma warning(disable:4127) // conditional expression is constant, for do..while(0) and sizeof()== +#endif + +static size_t stbds_siphash_bytes(void *p, size_t len, size_t seed) +{ + unsigned char *d = (unsigned char *) p; + size_t i,j; + size_t v0,v1,v2,v3, data; + + // hash that works on 32- or 64-bit registers without knowing which we have + // (computes different results on 32-bit and 64-bit platform) + // derived from siphash, but on 32-bit platforms very different as it uses 4 32-bit state not 4 64-bit + v0 = ((((size_t) 0x736f6d65 << 16) << 16) + 0x70736575) ^ seed; + v1 = ((((size_t) 0x646f7261 << 16) << 16) + 0x6e646f6d) ^ ~seed; + v2 = ((((size_t) 0x6c796765 << 16) << 16) + 0x6e657261) ^ seed; + v3 = ((((size_t) 0x74656462 << 16) << 16) + 0x79746573) ^ ~seed; + + #ifdef STBDS_TEST_SIPHASH_2_4 + // hardcoded with key material in the siphash test vectors + v0 ^= 0x0706050403020100ull ^ seed; + v1 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed; + v2 ^= 0x0706050403020100ull ^ seed; + v3 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed; + #endif + + #define STBDS_SIPROUND() \ + do { \ + v0 += v1; v1 = STBDS_ROTATE_LEFT(v1, 13); v1 ^= v0; v0 = STBDS_ROTATE_LEFT(v0,STBDS_SIZE_T_BITS/2); \ + v2 += v3; v3 = STBDS_ROTATE_LEFT(v3, 16); v3 ^= v2; \ + v2 += v1; v1 = STBDS_ROTATE_LEFT(v1, 17); v1 ^= v2; v2 = STBDS_ROTATE_LEFT(v2,STBDS_SIZE_T_BITS/2); \ + v0 += v3; v3 = STBDS_ROTATE_LEFT(v3, 21); v3 ^= v0; \ + } while (0) + + for (i=0; i+sizeof(size_t) <= len; i += sizeof(size_t), d += sizeof(size_t)) { + data = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); + data |= (size_t) (d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // discarded if size_t == 4 + + v3 ^= data; + for (j=0; j < STBDS_SIPHASH_C_ROUNDS; ++j) + STBDS_SIPROUND(); + v0 ^= data; + } + data = len << (STBDS_SIZE_T_BITS-8); + switch (len - i) { + case 7: data |= ((size_t) d[6] << 24) << 24; // fall through + case 6: data |= ((size_t) d[5] << 20) << 20; // fall through + case 5: data |= ((size_t) d[4] << 16) << 16; // fall through + case 4: data |= (d[3] << 24); // fall through + case 3: data |= (d[2] << 16); // fall through + case 2: data |= (d[1] << 8); // fall through + case 1: data |= d[0]; // fall through + case 0: break; + } + v3 ^= data; + for (j=0; j < STBDS_SIPHASH_C_ROUNDS; ++j) + STBDS_SIPROUND(); + v0 ^= data; + v2 ^= 0xff; + for (j=0; j < STBDS_SIPHASH_D_ROUNDS; ++j) + STBDS_SIPROUND(); + +#ifdef STBDS_SIPHASH_2_4 + return v0^v1^v2^v3; +#else + return v1^v2^v3; // slightly stronger since v0^v3 in above cancels out final round operation? I tweeted at the authors of SipHash about this but they didn't reply +#endif +} + +size_t stbds_hash_bytes(void *p, size_t len, size_t seed) +{ +#ifdef STBDS_SIPHASH_2_4 + return stbds_siphash_bytes(p,len,seed); +#else + unsigned char *d = (unsigned char *) p; + + if (len == 4) { + unsigned int hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); + #if 0 + // HASH32-A Bob Jenkin's hash function w/o large constants + hash ^= seed; + hash -= (hash<<6); + hash ^= (hash>>17); + hash -= (hash<<9); + hash ^= seed; + hash ^= (hash<<4); + hash -= (hash<<3); + hash ^= (hash<<10); + hash ^= (hash>>15); + #elif 1 + // HASH32-BB Bob Jenkin's presumably-accidental version of Thomas Wang hash with rotates turned into shifts. + // Note that converting these back to rotates makes it run a lot slower, presumably due to collisions, so I'm + // not really sure what's going on. + hash ^= seed; + hash = (hash ^ 61) ^ (hash >> 16); + hash = hash + (hash << 3); + hash = hash ^ (hash >> 4); + hash = hash * 0x27d4eb2d; + hash ^= seed; + hash = hash ^ (hash >> 15); + #else // HASH32-C - Murmur3 + hash ^= seed; + hash *= 0xcc9e2d51; + hash = (hash << 17) | (hash >> 15); + hash *= 0x1b873593; + hash ^= seed; + hash = (hash << 19) | (hash >> 13); + hash = hash*5 + 0xe6546b64; + hash ^= hash >> 16; + hash *= 0x85ebca6b; + hash ^= seed; + hash ^= hash >> 13; + hash *= 0xc2b2ae35; + hash ^= hash >> 16; + #endif + // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2 + // Note that the larger tables have high variance as they were run fewer times + // HASH32-A // HASH32-BB // HASH32-C + // 0.10ms // 0.10ms // 0.10ms : 2,000 inserts creating 2K table + // 0.96ms // 0.95ms // 0.99ms : 20,000 inserts creating 20K table + // 14.69ms // 14.43ms // 14.97ms : 200,000 inserts creating 200K table + // 199.99ms // 195.36ms // 202.05ms : 2,000,000 inserts creating 2M table + // 2234.84ms // 2187.74ms // 2240.38ms : 20,000,000 inserts creating 20M table + // 55.68ms // 53.72ms // 57.31ms : 500,000 inserts & deletes in 2K table + // 63.43ms // 61.99ms // 65.73ms : 500,000 inserts & deletes in 20K table + // 80.04ms // 77.96ms // 81.83ms : 500,000 inserts & deletes in 200K table + // 100.42ms // 97.40ms // 102.39ms : 500,000 inserts & deletes in 2M table + // 119.71ms // 120.59ms // 121.63ms : 500,000 inserts & deletes in 20M table + // 185.28ms // 195.15ms // 187.74ms : 500,000 inserts & deletes in 200M table + // 15.58ms // 14.79ms // 15.52ms : 200,000 inserts creating 200K table with varying key spacing + + return (((size_t) hash << 16 << 16) | hash) ^ seed; + } else if (len == 8 && sizeof(size_t) == 8) { + size_t hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24); + hash |= (size_t) (d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // avoid warning if size_t == 4 + hash ^= seed; + hash = (~hash) + (hash << 21); + hash ^= STBDS_ROTATE_RIGHT(hash,24); + hash *= 265; + hash ^= STBDS_ROTATE_RIGHT(hash,14); + hash ^= seed; + hash *= 21; + hash ^= STBDS_ROTATE_RIGHT(hash,28); + hash += (hash << 31); + hash = (~hash) + (hash << 18); + return hash; + } else { + return stbds_siphash_bytes(p,len,seed); + } +#endif +} +#ifdef _MSC_VER +#pragma warning(pop) +#endif + + +static int stbds_is_key_equal(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode, size_t i) +{ + if (mode >= STBDS_HM_STRING) + return 0==strcmp((char *) key, * (char **) ((char *) a + elemsize*i + keyoffset)); + else + return 0==memcmp(key, (char *) a + elemsize*i + keyoffset, keysize); +} + +#define STBDS_HASH_TO_ARR(x,elemsize) ((char*) (x) - (elemsize)) +#define STBDS_ARR_TO_HASH(x,elemsize) ((char*) (x) + (elemsize)) + +#define stbds_hash_table(a) ((stbds_hash_index *) stbds_header(a)->hash_table) + +void stbds_hmfree_func(void *a, size_t elemsize) +{ + if (a == NULL) return; + if (stbds_hash_table(a) != NULL) { + if (stbds_hash_table(a)->string.mode == STBDS_SH_STRDUP) { + size_t i; + // skip 0th element, which is default + for (i=1; i < stbds_header(a)->length; ++i) + STBDS_FREE(NULL, *(char**) ((char *) a + elemsize*i)); + } + stbds_strreset(&stbds_hash_table(a)->string); + } + STBDS_FREE(NULL, stbds_header(a)->hash_table); + STBDS_FREE(NULL, stbds_header(a)); +} + +static ptrdiff_t stbds_hm_find_slot(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode) +{ + void *raw_a = STBDS_HASH_TO_ARR(a,elemsize); + stbds_hash_index *table = stbds_hash_table(raw_a); + size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key,table->seed) : stbds_hash_bytes(key, keysize,table->seed); + size_t step = STBDS_BUCKET_LENGTH; + size_t limit,i; + size_t pos; + stbds_hash_bucket *bucket; + + if (hash < 2) hash += 2; // stored hash values are forbidden from being 0, so we can detect empty slots + + pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2); + + for (;;) { + STBDS_STATS(++stbds_hash_probes); + bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; + + // start searching from pos to end of bucket, this should help performance on small hash tables that fit in cache + for (i=pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + return (pos & ~STBDS_BUCKET_MASK)+i; + } + } else if (bucket->hash[i] == STBDS_HASH_EMPTY) { + return -1; + } + } + + // search from beginning of bucket to pos + limit = pos & STBDS_BUCKET_MASK; + for (i = 0; i < limit; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + return (pos & ~STBDS_BUCKET_MASK)+i; + } + } else if (bucket->hash[i] == STBDS_HASH_EMPTY) { + return -1; + } + } + + // quadratic probing + pos += step; + step += STBDS_BUCKET_LENGTH; + pos &= (table->slot_count-1); + } + /* NOTREACHED */ +} + +void * stbds_hmget_key_ts(void *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode) +{ + size_t keyoffset = 0; + if (a == NULL) { + // make it non-empty so we can return a temp + a = stbds_arrgrowf(0, elemsize, 0, 1); + stbds_header(a)->length += 1; + memset(a, 0, elemsize); + *temp = STBDS_INDEX_EMPTY; + // adjust a to point after the default element + return STBDS_ARR_TO_HASH(a,elemsize); + } else { + stbds_hash_index *table; + void *raw_a = STBDS_HASH_TO_ARR(a,elemsize); + // adjust a to point to the default element + table = (stbds_hash_index *) stbds_header(raw_a)->hash_table; + if (table == 0) { + *temp = -1; + } else { + ptrdiff_t slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode); + if (slot < 0) { + *temp = STBDS_INDEX_EMPTY; + } else { + stbds_hash_bucket *b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; + *temp = b->index[slot & STBDS_BUCKET_MASK]; + } + } + return a; + } +} + +void * stbds_hmget_key(void *a, size_t elemsize, void *key, size_t keysize, int mode) +{ + ptrdiff_t temp; + void *p = stbds_hmget_key_ts(a, elemsize, key, keysize, &temp, mode); + stbds_temp(STBDS_HASH_TO_ARR(p,elemsize)) = temp; + return p; +} + +void * stbds_hmput_default(void *a, size_t elemsize) +{ + // three cases: + // a is NULL <- allocate + // a has a hash table but no entries, because of shmode <- grow + // a has entries <- do nothing + if (a == NULL || stbds_header(STBDS_HASH_TO_ARR(a,elemsize))->length == 0) { + a = stbds_arrgrowf(a ? STBDS_HASH_TO_ARR(a,elemsize) : NULL, elemsize, 0, 1); + stbds_header(a)->length += 1; + memset(a, 0, elemsize); + a=STBDS_ARR_TO_HASH(a,elemsize); + } + return a; +} + +static char *stbds_strdup(char *str); + +void *stbds_hmput_key(void *a, size_t elemsize, void *key, size_t keysize, int mode) +{ + size_t keyoffset=0; + void *raw_a; + stbds_hash_index *table; + + if (a == NULL) { + a = stbds_arrgrowf(0, elemsize, 0, 1); + memset(a, 0, elemsize); + stbds_header(a)->length += 1; + // adjust a to point AFTER the default element + a = STBDS_ARR_TO_HASH(a,elemsize); + } + + // adjust a to point to the default element + raw_a = a; + a = STBDS_HASH_TO_ARR(a,elemsize); + + table = (stbds_hash_index *) stbds_header(a)->hash_table; + + if (table == NULL || table->used_count >= table->used_count_threshold) { + stbds_hash_index *nt; + size_t slot_count; + + slot_count = (table == NULL) ? STBDS_BUCKET_LENGTH : table->slot_count*2; + nt = stbds_make_hash_index(slot_count, table); + if (table) + STBDS_FREE(NULL, table); + else + nt->string.mode = mode >= STBDS_HM_STRING ? STBDS_SH_DEFAULT : 0; + stbds_header(a)->hash_table = table = nt; + STBDS_STATS(++stbds_hash_grow); + } + + // we iterate hash table explicitly because we want to track if we saw a tombstone + { + size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key,table->seed) : stbds_hash_bytes(key, keysize,table->seed); + size_t step = STBDS_BUCKET_LENGTH; + size_t pos; + ptrdiff_t tombstone = -1; + stbds_hash_bucket *bucket; + + // stored hash values are forbidden from being 0, so we can detect empty slots to early out quickly + if (hash < 2) hash += 2; + + pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2); + + for (;;) { + size_t limit, i; + STBDS_STATS(++stbds_hash_probes); + bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; + + // start searching from pos to end of bucket + for (i=pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + stbds_temp(a) = bucket->index[i]; + if (mode >= STBDS_HM_STRING) + stbds_temp_key(a) = * (char **) ((char *) raw_a + elemsize*bucket->index[i] + keyoffset); + return STBDS_ARR_TO_HASH(a,elemsize); + } + } else if (bucket->hash[i] == 0) { + pos = (pos & ~STBDS_BUCKET_MASK) + i; + goto found_empty_slot; + } else if (tombstone < 0) { + if (bucket->index[i] == STBDS_INDEX_DELETED) + tombstone = (ptrdiff_t) ((pos & ~STBDS_BUCKET_MASK) + i); + } + } + + // search from beginning of bucket to pos + limit = pos & STBDS_BUCKET_MASK; + for (i = 0; i < limit; ++i) { + if (bucket->hash[i] == hash) { + if (stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) { + stbds_temp(a) = bucket->index[i]; + return STBDS_ARR_TO_HASH(a,elemsize); + } + } else if (bucket->hash[i] == 0) { + pos = (pos & ~STBDS_BUCKET_MASK) + i; + goto found_empty_slot; + } else if (tombstone < 0) { + if (bucket->index[i] == STBDS_INDEX_DELETED) + tombstone = (ptrdiff_t) ((pos & ~STBDS_BUCKET_MASK) + i); + } + } + + // quadratic probing + pos += step; + step += STBDS_BUCKET_LENGTH; + pos &= (table->slot_count-1); + } + found_empty_slot: + if (tombstone >= 0) { + pos = tombstone; + --table->tombstone_count; + } + ++table->used_count; + + { + ptrdiff_t i = (ptrdiff_t) stbds_arrlen(a); + // we want to do stbds_arraddn(1), but we can't use the macros since we don't have something of the right type + if ((size_t) i+1 > stbds_arrcap(a)) + *(void **) &a = stbds_arrgrowf(a, elemsize, 1, 0); + raw_a = STBDS_ARR_TO_HASH(a,elemsize); + + STBDS_ASSERT((size_t) i+1 <= stbds_arrcap(a)); + stbds_header(a)->length = i+1; + bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT]; + bucket->hash[pos & STBDS_BUCKET_MASK] = hash; + bucket->index[pos & STBDS_BUCKET_MASK] = i-1; + stbds_temp(a) = i-1; + + switch (table->string.mode) { + case STBDS_SH_STRDUP: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = stbds_strdup((char*) key); break; + case STBDS_SH_ARENA: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = stbds_stralloc(&table->string, (char*)key); break; + case STBDS_SH_DEFAULT: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = (char *) key; break; + default: memcpy((char *) a + elemsize*i, key, keysize); break; + } + } + return STBDS_ARR_TO_HASH(a,elemsize); + } +} + +void * stbds_shmode_func(size_t elemsize, int mode) +{ + void *a = stbds_arrgrowf(0, elemsize, 0, 1); + stbds_hash_index *h; + memset(a, 0, elemsize); + stbds_header(a)->length = 1; + stbds_header(a)->hash_table = h = (stbds_hash_index *) stbds_make_hash_index(STBDS_BUCKET_LENGTH, NULL); + h->string.mode = (unsigned char) mode; + return STBDS_ARR_TO_HASH(a,elemsize); +} + +void * stbds_hmdel_key(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode) +{ + if (a == NULL) { + return 0; + } else { + stbds_hash_index *table; + void *raw_a = STBDS_HASH_TO_ARR(a,elemsize); + table = (stbds_hash_index *) stbds_header(raw_a)->hash_table; + stbds_temp(raw_a) = 0; + if (table == 0) { + return a; + } else { + ptrdiff_t slot; + slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode); + if (slot < 0) + return a; + else { + stbds_hash_bucket *b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; + int i = slot & STBDS_BUCKET_MASK; + ptrdiff_t old_index = b->index[i]; + ptrdiff_t final_index = (ptrdiff_t) stbds_arrlen(raw_a)-1-1; // minus one for the raw_a vs a, and minus one for 'last' + STBDS_ASSERT(slot < (ptrdiff_t) table->slot_count); + --table->used_count; + ++table->tombstone_count; + stbds_temp(raw_a) = 1; + STBDS_ASSERT(table->used_count >= 0); + //STBDS_ASSERT(table->tombstone_count < table->slot_count/4); + b->hash[i] = STBDS_HASH_DELETED; + b->index[i] = STBDS_INDEX_DELETED; + + if (mode == STBDS_HM_STRING && table->string.mode == STBDS_SH_STRDUP) + STBDS_FREE(NULL, *(char**) ((char *) a+elemsize*old_index)); + + // if indices are the same, memcpy is a no-op, but back-pointer-fixup will fail, so skip + if (old_index != final_index) { + // swap delete + memmove((char*) a + elemsize*old_index, (char*) a + elemsize*final_index, elemsize); + + // now find the slot for the last element + if (mode == STBDS_HM_STRING) + slot = stbds_hm_find_slot(a, elemsize, *(char**) ((char *) a+elemsize*old_index + keyoffset), keysize, keyoffset, mode); + else + slot = stbds_hm_find_slot(a, elemsize, (char* ) a+elemsize*old_index + keyoffset, keysize, keyoffset, mode); + STBDS_ASSERT(slot >= 0); + b = &table->storage[slot >> STBDS_BUCKET_SHIFT]; + i = slot & STBDS_BUCKET_MASK; + STBDS_ASSERT(b->index[i] == final_index); + b->index[i] = old_index; + } + stbds_header(raw_a)->length -= 1; + + if (table->used_count < table->used_count_shrink_threshold && table->slot_count > STBDS_BUCKET_LENGTH) { + stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count>>1, table); + STBDS_FREE(NULL, table); + STBDS_STATS(++stbds_hash_shrink); + } else if (table->tombstone_count > table->tombstone_count_threshold) { + stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count , table); + STBDS_FREE(NULL, table); + STBDS_STATS(++stbds_hash_rebuild); + } + + return a; + } + } + } + /* NOTREACHED */ +} + +static char *stbds_strdup(char *str) +{ + // to keep replaceable allocator simple, we don't want to use strdup. + // rolling our own also avoids problem of strdup vs _strdup + size_t len = strlen(str)+1; + char *p = (char*) STBDS_REALLOC(NULL, 0, len); + memmove(p, str, len); + return p; +} + +#ifndef STBDS_STRING_ARENA_BLOCKSIZE_MIN +#define STBDS_STRING_ARENA_BLOCKSIZE_MIN 512u +#endif +#ifndef STBDS_STRING_ARENA_BLOCKSIZE_MAX +#define STBDS_STRING_ARENA_BLOCKSIZE_MAX (1u<<20) +#endif + +char *stbds_stralloc(stbds_string_arena *a, char *str) +{ + char *p; + size_t len = strlen(str)+1; + if (len > a->remaining) { + // compute the next blocksize + size_t blocksize = a->block; + + // size is 512, 512, 1024, 1024, 2048, 2048, 4096, 4096, etc., so that + // there are log(SIZE) allocations to free when we destroy the table + blocksize = (size_t) (STBDS_STRING_ARENA_BLOCKSIZE_MIN) << (blocksize>>1); + + // if size is under 1M, advance to next blocktype + if (blocksize < (size_t)(STBDS_STRING_ARENA_BLOCKSIZE_MAX)) + ++a->block; + + if (len > blocksize) { + // if string is larger than blocksize, then just allocate the full size. + // note that we still advance string_block so block size will continue + // increasing, so e.g. if somebody only calls this with 1000-long strings, + // eventually the arena will start doubling and handling those as well + stbds_string_block *sb = (stbds_string_block *) STBDS_REALLOC(NULL, 0, sizeof(*sb)-8 + len); + memmove(sb->storage, str, len); + if (a->storage) { + // insert it after the first element, so that we don't waste the space there + sb->next = a->storage->next; + a->storage->next = sb; + } else { + sb->next = 0; + a->storage = sb; + a->remaining = 0; // this is redundant, but good for clarity + } + return sb->storage; + } else { + stbds_string_block *sb = (stbds_string_block *) STBDS_REALLOC(NULL, 0, sizeof(*sb)-8 + blocksize); + sb->next = a->storage; + a->storage = sb; + a->remaining = blocksize; + } + } + + STBDS_ASSERT(len <= a->remaining); + p = a->storage->storage + a->remaining - len; + a->remaining -= len; + memmove(p, str, len); + return p; +} + +void stbds_strreset(stbds_string_arena *a) +{ + stbds_string_block *x,*y; + x = a->storage; + while (x) { + y = x->next; + STBDS_FREE(NULL, x); + x = y; + } + memset(a, 0, sizeof(*a)); +} + +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// UNIT TESTS +// + +#ifdef STBDS_UNIT_TESTS +#include +#ifdef STBDS_ASSERT_WAS_UNDEFINED +#undef STBDS_ASSERT +#endif +#ifndef STBDS_ASSERT +#define STBDS_ASSERT assert +#include +#endif + +typedef struct { int key,b,c,d; } stbds_struct; +typedef struct { int key[2],b,c,d; } stbds_struct2; + +static char buffer[256]; +char *strkey(int n) +{ +#if defined(_WIN32) && defined(__STDC_WANT_SECURE_LIB__) + sprintf_s(buffer, sizeof(buffer), "test_%d", n); +#else + sprintf(buffer, "test_%d", n); +#endif + return buffer; +} + +void stbds_unit_tests(void) +{ +#if defined(_MSC_VER) && _MSC_VER <= 1200 && defined(__cplusplus) + // VC6 C++ doesn't like the template<> trick on unnamed structures, so do nothing! + STBDS_ASSERT(0); +#else + const int testsize = 100000; + const int testsize2 = testsize/20; + int *arr=NULL; + struct { int key; int value; } *intmap = NULL; + struct { char *key; int value; } *strmap = NULL, s; + struct { stbds_struct key; int value; } *map = NULL; + stbds_struct *map2 = NULL; + stbds_struct2 *map3 = NULL; + stbds_string_arena sa = { 0 }; + int key3[2] = { 1,2 }; + ptrdiff_t temp; + + int i,j; + + STBDS_ASSERT(arrlen(arr)==0); + for (i=0; i < 20000; i += 50) { + for (j=0; j < i; ++j) + arrpush(arr,j); + arrfree(arr); + } + + for (i=0; i < 4; ++i) { + arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4); + arrdel(arr,i); + arrfree(arr); + arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4); + arrdelswap(arr,i); + arrfree(arr); + } + + for (i=0; i < 5; ++i) { + arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4); + stbds_arrins(arr,i,5); + STBDS_ASSERT(arr[i] == 5); + if (i < 4) + STBDS_ASSERT(arr[4] == 4); + arrfree(arr); + } + + i = 1; + STBDS_ASSERT(hmgeti(intmap,i) == -1); + hmdefault(intmap, -2); + STBDS_ASSERT(hmgeti(intmap, i) == -1); + STBDS_ASSERT(hmget (intmap, i) == -2); + for (i=0; i < testsize; i+=2) + hmput(intmap, i, i*5); + for (i=0; i < testsize; i+=1) { + if (i & 1) STBDS_ASSERT(hmget(intmap, i) == -2 ); + else STBDS_ASSERT(hmget(intmap, i) == i*5); + if (i & 1) STBDS_ASSERT(hmget_ts(intmap, i, temp) == -2 ); + else STBDS_ASSERT(hmget_ts(intmap, i, temp) == i*5); + } + for (i=0; i < testsize; i+=2) + hmput(intmap, i, i*3); + for (i=0; i < testsize; i+=1) + if (i & 1) STBDS_ASSERT(hmget(intmap, i) == -2 ); + else STBDS_ASSERT(hmget(intmap, i) == i*3); + for (i=2; i < testsize; i+=4) + hmdel(intmap, i); // delete half the entries + for (i=0; i < testsize; i+=1) + if (i & 3) STBDS_ASSERT(hmget(intmap, i) == -2 ); + else STBDS_ASSERT(hmget(intmap, i) == i*3); + for (i=0; i < testsize; i+=1) + hmdel(intmap, i); // delete the rest of the entries + for (i=0; i < testsize; i+=1) + STBDS_ASSERT(hmget(intmap, i) == -2 ); + hmfree(intmap); + for (i=0; i < testsize; i+=2) + hmput(intmap, i, i*3); + hmfree(intmap); + + #if defined(__clang__) || defined(__GNUC__) + #ifndef __cplusplus + intmap = NULL; + hmput(intmap, 15, 7); + hmput(intmap, 11, 3); + hmput(intmap, 9, 5); + STBDS_ASSERT(hmget(intmap, 9) == 5); + STBDS_ASSERT(hmget(intmap, 11) == 3); + STBDS_ASSERT(hmget(intmap, 15) == 7); + #endif + #endif + + for (i=0; i < testsize; ++i) + stralloc(&sa, strkey(i)); + strreset(&sa); + + { + s.key = "a", s.value = 1; + shputs(strmap, s); + STBDS_ASSERT(*strmap[0].key == 'a'); + STBDS_ASSERT(strmap[0].key == s.key); + STBDS_ASSERT(strmap[0].value == s.value); + shfree(strmap); + } + + { + s.key = "a", s.value = 1; + sh_new_strdup(strmap); + shputs(strmap, s); + STBDS_ASSERT(*strmap[0].key == 'a'); + STBDS_ASSERT(strmap[0].key != s.key); + STBDS_ASSERT(strmap[0].value == s.value); + shfree(strmap); + } + + { + s.key = "a", s.value = 1; + sh_new_arena(strmap); + shputs(strmap, s); + STBDS_ASSERT(*strmap[0].key == 'a'); + STBDS_ASSERT(strmap[0].key != s.key); + STBDS_ASSERT(strmap[0].value == s.value); + shfree(strmap); + } + + for (j=0; j < 2; ++j) { + STBDS_ASSERT(shgeti(strmap,"foo") == -1); + if (j == 0) + sh_new_strdup(strmap); + else + sh_new_arena(strmap); + STBDS_ASSERT(shgeti(strmap,"foo") == -1); + shdefault(strmap, -2); + STBDS_ASSERT(shgeti(strmap,"foo") == -1); + for (i=0; i < testsize; i+=2) + shput(strmap, strkey(i), i*3); + for (i=0; i < testsize; i+=1) + if (i & 1) STBDS_ASSERT(shget(strmap, strkey(i)) == -2 ); + else STBDS_ASSERT(shget(strmap, strkey(i)) == i*3); + for (i=2; i < testsize; i+=4) + shdel(strmap, strkey(i)); // delete half the entries + for (i=0; i < testsize; i+=1) + if (i & 3) STBDS_ASSERT(shget(strmap, strkey(i)) == -2 ); + else STBDS_ASSERT(shget(strmap, strkey(i)) == i*3); + for (i=0; i < testsize; i+=1) + shdel(strmap, strkey(i)); // delete the rest of the entries + for (i=0; i < testsize; i+=1) + STBDS_ASSERT(shget(strmap, strkey(i)) == -2 ); + shfree(strmap); + } + + { + struct { char *key; char value; } *hash = NULL; + char name[4] = "jen"; + shput(hash, "bob" , 'h'); + shput(hash, "sally" , 'e'); + shput(hash, "fred" , 'l'); + shput(hash, "jen" , 'x'); + shput(hash, "doug" , 'o'); + + shput(hash, name , 'l'); + shfree(hash); + } + + for (i=0; i < testsize; i += 2) { + stbds_struct s = { i,i*2,i*3,i*4 }; + hmput(map, s, i*5); + } + + for (i=0; i < testsize; i += 1) { + stbds_struct s = { i,i*2,i*3 ,i*4 }; + stbds_struct t = { i,i*2,i*3+1,i*4 }; + if (i & 1) STBDS_ASSERT(hmget(map, s) == 0); + else STBDS_ASSERT(hmget(map, s) == i*5); + if (i & 1) STBDS_ASSERT(hmget_ts(map, s, temp) == 0); + else STBDS_ASSERT(hmget_ts(map, s, temp) == i*5); + //STBDS_ASSERT(hmget(map, t.key) == 0); + } + + for (i=0; i < testsize; i += 2) { + stbds_struct s = { i,i*2,i*3,i*4 }; + hmputs(map2, s); + } + hmfree(map); + + for (i=0; i < testsize; i += 1) { + stbds_struct s = { i,i*2,i*3,i*4 }; + stbds_struct t = { i,i*2,i*3+1,i*4 }; + if (i & 1) STBDS_ASSERT(hmgets(map2, s.key).d == 0); + else STBDS_ASSERT(hmgets(map2, s.key).d == i*4); + //STBDS_ASSERT(hmgetp(map2, t.key) == 0); + } + hmfree(map2); + + for (i=0; i < testsize; i += 2) { + stbds_struct2 s = { { i,i*2 }, i*3,i*4, i*5 }; + hmputs(map3, s); + } + for (i=0; i < testsize; i += 1) { + stbds_struct2 s = { { i,i*2}, i*3, i*4, i*5 }; + stbds_struct2 t = { { i,i*2}, i*3+1, i*4, i*5 }; + if (i & 1) STBDS_ASSERT(hmgets(map3, s.key).d == 0); + else STBDS_ASSERT(hmgets(map3, s.key).d == i*5); + //STBDS_ASSERT(hmgetp(map3, t.key) == 0); + } +#endif +} +#endif + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2019 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/SlLinux/lib/README.md b/SlLinux/lib/README.md new file mode 100644 index 0000000..54a2f33 --- /dev/null +++ b/SlLinux/lib/README.md @@ -0,0 +1,10 @@ +# Library used in this project : + +## readline + +## raylib + + `git clone git@github.com/raysan5/raylib.git` + `cd raylib/src` + `make PLATFORM=PLATFORM_DRM` + diff --git a/SlLinux/source/auth.c b/SlLinux/source/auth.c new file mode 100644 index 0000000..5d34148 --- /dev/null +++ b/SlLinux/source/auth.c @@ -0,0 +1,4 @@ +#include "slcore.h" +#include "slmath.h" + +// should give each child process a token id, then ask for file read and right authorization diff --git a/SlLinux/source/main.c b/SlLinux/source/main.c new file mode 100755 index 0000000..5a4316d --- /dev/null +++ b/SlLinux/source/main.c @@ -0,0 +1,19 @@ +#include "slcore.h" + +int main() { + // 1. Mount essential filesystems + //mount("proc", "/proc", "proc", 0, NULL); + //mount("sysfs", "/sys", "sysfs", 0, NULL); + //mount("devtmpfs", "/dev", "devtmpfs", 0, NULL); + + printf("Welcome to Sterling OS a GNU/Linux based software\n"); + + entry_shell(); + entry_window_display_manager(); +// char *shell_args[] = { "/bin/myshell", NULL }; +// execv("/bin/myshell", shell_args); + + // If execv returns, something went wrong + while(1) { sleep(100); } + return 0; +} diff --git a/SlLinux/source/shell.c b/SlLinux/source/shell.c new file mode 100755 index 0000000..b8e071e --- /dev/null +++ b/SlLinux/source/shell.c @@ -0,0 +1,37 @@ +#include "slcore.h" + +int process_line(char* line, char **envp) { + (void)line; + (void)envp; + return (0); +} +//READLINE IS REALLY FKN POWERFULL +int entry_shell(int ac, char **av, char **envp) { + (void)ac; + (void)av; + (void)envp; + int running = 1; + char *line = NULL; +//rl_parse_and_bind(); +//rl_read_init_file(); +//rl_terminal_name = (char*)"new"; +//rl_readline_name = (char*)"custom"; +//rl_instrean = (FILE*)NULL; +//rl_outstrean = (FILE*)NULL; + rl_initialize(); + using_history(); + rl_editing_mode = 1; + while (running) { + line = readline(":>"); + if (!line ) { + running = 0; + } + if (*line) { + add_history(line); + } + rl_free (line); + line = NULL; + } + clear_history(); + return (-1); +} diff --git a/SlLinux/source/slcore.h b/SlLinux/source/slcore.h new file mode 100644 index 0000000..9c14024 --- /dev/null +++ b/SlLinux/source/slcore.h @@ -0,0 +1,107 @@ +#ifndef SL_CORE_H +# define SL_CORE_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include +#include + +#include +#include +#include + +#include +#include + +#include +#include + +#define STB_DS_IMPLEMENTATION +#include "../include/stb_ds.h" + +#define DEFAULT_EVDEV_PATH "/dev/input/" + +typedef struct sl_dumbframebuffer { + uint32_t id; /* Issue de drmModeAddFB2() */ + uint32_t width; /* Définie par le développeur */ + uint32_t height; /* Définie par le développeur */ + uint32_t stride; /* Issue de drmModeCreateDumbBuffer() */ + uint32_t handle; /* Issue de drmModeCreateDumbBudder() */ + uint64_t size; /* Issue de drmModeCreateDumbBuffer() */ + uint8_t *data; /* Issue du mmap */ +} sl_dumbframebuffer_t; + +typedef struct sl_framebuffer { + drmModeFB fb; + drmModePlane plane; +} sl_framebuffer_t; + +typedef struct sl_display{ + drmModeConnector conn; + drmModeCrtc crtc; + drmModeRes res; + drmModeEncoder enc; +} sl_display_t; + +typedef struct sl_term { + int fd_in; + int fd_out; +} sl_term_t; + +typedef struct sl_window { + int height; + int width; + int id; + int flags; + int buffer_id; +} sl_window_t; + +typedef struct { + int default_mode; + bool event_mode; + int file_flags; + struct termios setting; + int fd; +} sl_keyboard_t; + +#ifndef MAX_MOUSE_BUTTON +# define MAX_MOUSE_BUTTON 8//defined by raylib in rcore.c +#endif + +typedef struct { + Vector2 wheel_move; + char button_state_evdev[8]; + bool cursor_relative; + int mouse_fd; +} sl_mouse_t; + +typedef struct { + int fd; + drmModeConnector *monitor; + drmModeCrtc *crtc; + int mode_index; + uint32_t prev_framebuffer; + struct gbm_device *gbm_devices; + struct gbm_surface *gbm_surfaces; + struct gbm_bo *prev_bufferobj; + EGLDisplay device; +} sl_platform; + +#endif diff --git a/SlLinux/source/slmath.h b/SlLinux/source/slmath.h new file mode 100644 index 0000000..e6f0ef9 --- /dev/null +++ b/SlLinux/source/slmath.h @@ -0,0 +1,8 @@ +#ifndef SL_MATH_H +# define SL_MATH_H + +#include + +// + +#endif diff --git a/SlLinux/source/slwdm.c b/SlLinux/source/slwdm.c new file mode 100644 index 0000000..62d6c6f --- /dev/null +++ b/SlLinux/source/slwdm.c @@ -0,0 +1,53 @@ +#include "slcore.h" + +/* + before starting this, should set app user to have : + sudo usermod -aG video,input $USER + also this only work on linux x86_64 computer +*/ +drmModeConnector *ListMonitors() { + int fd = open("/dev/dri/card0", O_RDWR | O_NONBLOCK); + if (fd < 0) { + return(NULL); + } + + drmModeConnector *monitors = 0x00; + drmModeRes *res = drmModeGetResources(fd); + for (int i = 0; i < res->count_connectors; i++) { + drmModeConnector *conn = 0x00; + conn = drmModeGetConnector(fd, res->connectors[i]); + + if (conn->connection == DRM_MODE_CONNECTED) { + printf("Monitor Found: ID %d | Type: %d\n", \ + conn->connector_id, conn->connector_type); + //addconn to connected monitor + arrpush(monitors, *conn); + } + drmModeFreeConnector(conn); + } + drmModeFreeResources(res); + close(fd); + return (monitors); +} + +/* todo: + * -KEYMAP_IMPLEMENTATION + * -drmcache check gbm framebuffercaching; +*/ +int entry_window_display_manager(int ac, char**av,char**envp) { + (void)ac; + (void)av; + (void)envp; + //printf("%i", drmAvailable()); + drmModeConnector *monitors = NULL; + monitors = ListMonitors(); + if (!monitors || !arrlen(monitors)) { + //Log Error no available monitors + return (-1); + } + for (int i = 0; i < arrlen(monitors); i++) { + printf("%dx%d@%d\n", monitors[i].modes[0].vdisplay, monitors[i].modes[0].hdisplay, monitors[i].modes[0].vrefresh); + } + arrfree(monitors); + return (0); +} diff --git a/Sterling b/Sterling new file mode 160000 index 0000000..fd2ba66 --- /dev/null +++ b/Sterling @@ -0,0 +1 @@ +Subproject commit fd2ba6612492301613943e4c6e487404151735ff