mirrors/raylib
1
0
Fork 0
mirror of https://github.com/raysan5/raylib.git synced 2025-09-21 18:58:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

Reviewed rlgl_standalone example

Browse Source
This commit is contained in:
Ray
2018-07-16 18:22:03 +02:00
parent 096fd6f2c3
commit 5b37178af9
6 changed files with 11680 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

93
src/rlgl.h
View File

@@ -460,45 +460,50 @@ void rlUnloadMesh(Mesh *mesh); // Unload me
// Shaders System Functions (Module: rlgl)
// NOTE: This functions are useless when using OpenGL 1.1
//------------------------------------------------------------------------------------
Shader LoadShader(char *vsFileName, char *fsFileName); // Load a custom shader and bind default locations
void UnloadShader(Shader shader); // Unload a custom shader from memory
// Shader loading/unloading functions
char *LoadText(const char *fileName); // Load chars array from text file
Shader LoadShader(const char *vsFileName, const char *fsFileName); // Load shader from files and bind default locations
Shader LoadShaderCode(char *vsCode, char *fsCode); // Load shader from code strings and bind default locations
void UnloadShader(Shader shader); // Unload shader from GPU memory (VRAM)
Shader GetShaderDefault(void); // Get default shader
Texture2D GetTextureDefault(void); // Get default texture
Shader GetShaderDefault(void); // Get default shader
Texture2D GetTextureDefault(void); // Get default texture
// Shader configuration functions
int GetShaderLocation(Shader shader, const char *uniformName); // Get shader uniform location
void SetShaderValue(Shader shader, int uniformLoc, const float *value, int size); // Set shader uniform value (float)
void SetShaderValuei(Shader shader, int uniformLoc, const int *value, int size); // Set shader uniform value (int)
void SetShaderValueMatrix(Shader shader, int uniformLoc, Matrix mat); // Set shader uniform value (matrix 4x4)
void SetMatrixProjection(Matrix proj); // Set a custom projection matrix (replaces internal projection matrix)
void SetMatrixModelview(Matrix view); // Set a custom modelview matrix (replaces internal modelview matrix)
Matrix GetMatrixModelview(); // Get internal modelview matrix
void SetMatrixProjection(Matrix proj); // Set a custom projection matrix (replaces internal projection matrix)
void SetMatrixModelview(Matrix view); // Set a custom modelview matrix (replaces internal modelview matrix)
Matrix GetMatrixModelview(); // Get internal modelview matrix
// Texture maps generation (PBR)
// NOTE: Required shaders should be provided
Texture2D GenTextureCubemap(Shader shader, Texture2D skyHDR, int size); // Generate cubemap texture from HDR texture
Texture2D GenTextureIrradiance(Shader shader, Texture2D cubemap, int size); // Generate irradiance texture using cubemap data
Texture2D GenTexturePrefilter(Shader shader, Texture2D cubemap, int size); // Generate prefilter texture using cubemap data
Texture2D GenTextureBRDF(Shader shader, Texture2D cubemap, int size); // Generate BRDF texture using cubemap data
Texture2D GenTextureCubemap(Shader shader, Texture2D skyHDR, int size); // Generate cubemap texture from HDR texture
Texture2D GenTextureIrradiance(Shader shader, Texture2D cubemap, int size); // Generate irradiance texture using cubemap data
Texture2D GenTexturePrefilter(Shader shader, Texture2D cubemap, int size); // Generate prefilter texture using cubemap data
Texture2D GenTextureBRDF(Shader shader, Texture2D cubemap, int size); // Generate BRDF texture using cubemap data
// Shading and blending
void BeginShaderMode(Shader shader); // Begin custom shader drawing
void EndShaderMode(void); // End custom shader drawing (use default shader)
void BeginBlendMode(int mode); // Begin blending mode (alpha, additive, multiplied)
void EndBlendMode(void); // End blending mode (reset to default: alpha blending)
// Shading begin/end functions
void BeginShaderMode(Shader shader); // Begin custom shader drawing
void EndShaderMode(void); // End custom shader drawing (use default shader)
void BeginBlendMode(int mode); // Begin blending mode (alpha, additive, multiplied)
void EndBlendMode(void); // End blending mode (reset to default: alpha blending)
// VR simulator functionality
VrDeviceInfo GetVrDeviceInfo(int vrDeviceType); // Get VR device information for some standard devices
void InitVrSimulator(VrDeviceInfo info); // Init VR simulator for selected device parameters
void CloseVrSimulator(void); // Close VR simulator for current device
void UpdateVrTracking(Camera *camera); // Update VR tracking (position and orientation) and camera
void ToggleVrMode(void); // Enable/Disable VR experience (device or simulator)
void BeginVrDrawing(void); // Begin VR stereo rendering
void EndVrDrawing(void); // End VR stereo rendering
// VR control functions
VrDeviceInfo GetVrDeviceInfo(int vrDeviceType); // Get VR device information for some standard devices
void InitVrSimulator(VrDeviceInfo info); // Init VR simulator for selected device parameters
void CloseVrSimulator(void); // Close VR simulator for current device
bool IsVrSimulatorReady(void); // Detect if VR simulator is ready
void SetVrDistortionShader(Shader shader); // Set VR distortion shader for stereoscopic rendering
void UpdateVrTracking(Camera *camera); // Update VR tracking (position and orientation) and camera
void ToggleVrMode(void); // Enable/Disable VR experience
void BeginVrDrawing(void); // Begin VR simulator stereo rendering
void EndVrDrawing(void); // End VR simulator stereo rendering
void TraceLog(int msgType, const char *text, ...); // Show trace log messages (LOG_INFO, LOG_WARNING, LOG_ERROR, LOG_DEBUG)
int GetPixelDataSize(int width, int height, int format);// Get pixel data size in bytes (image or texture)
#endif
#ifdef __cplusplus
@@ -4759,6 +4764,44 @@ void TraceLog(int msgType, const char *text, ...)
if (msgType == LOG_ERROR) exit(1);
}
// Get pixel data size in bytes (image or texture)
// NOTE: Size depends on pixel format
int GetPixelDataSize(int width, int height, int format)
{
int dataSize = 0; // Size in bytes
int bpp = 0; // Bits per pixel
switch (format)
{
case UNCOMPRESSED_GRAYSCALE: bpp = 8; break;
case UNCOMPRESSED_GRAY_ALPHA:
case UNCOMPRESSED_R5G6B5:
case UNCOMPRESSED_R5G5B5A1:
case UNCOMPRESSED_R4G4B4A4: bpp = 16; break;
case UNCOMPRESSED_R8G8B8A8: bpp = 32; break;
case UNCOMPRESSED_R8G8B8: bpp = 24; break;
case UNCOMPRESSED_R32: bpp = 32; break;
case UNCOMPRESSED_R32G32B32: bpp = 32*3; break;
case UNCOMPRESSED_R32G32B32A32: bpp = 32*4; break;
case COMPRESSED_DXT1_RGB:
case COMPRESSED_DXT1_RGBA:
case COMPRESSED_ETC1_RGB:
case COMPRESSED_ETC2_RGB:
case COMPRESSED_PVRT_RGB:
case COMPRESSED_PVRT_RGBA: bpp = 4; break;
case COMPRESSED_DXT3_RGBA:
case COMPRESSED_DXT5_RGBA:
case COMPRESSED_ETC2_EAC_RGBA:
case COMPRESSED_ASTC_4x4_RGBA: bpp = 8; break;
case COMPRESSED_ASTC_8x8_RGBA: bpp = 2; break;
default: break;
}
dataSize = width*height*bpp/8; // Total data size in bytes
return dataSize;
}
#endif
#endif // RLGL_IMPLEMENTATION