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Update rlgl.h

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Ray 2021-10-16 23:30:30 +02:00
parent dba29e4405
commit 8523d13683
1 changed files with 13 additions and 26 deletions
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39
src/rlgl.h
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@ -24,6 +24,7 @@
* #define GRAPHICS_API_OPENGL_11 * #define GRAPHICS_API_OPENGL_11
* #define GRAPHICS_API_OPENGL_21 * #define GRAPHICS_API_OPENGL_21
* #define GRAPHICS_API_OPENGL_33 * #define GRAPHICS_API_OPENGL_33
* #define GRAPHICS_API_OPENGL_43
* #define GRAPHICS_API_OPENGL_ES2 * #define GRAPHICS_API_OPENGL_ES2
* Use selected OpenGL graphics backend, should be supported by platform * Use selected OpenGL graphics backend, should be supported by platform
* Those preprocessor defines are only used on rlgl module, if OpenGL version is * Those preprocessor defines are only used on rlgl module, if OpenGL version is
@ -41,9 +42,6 @@
* #define RLGL_SHOW_GL_DETAILS_INFO * #define RLGL_SHOW_GL_DETAILS_INFO
* Show OpenGL extensions and capabilities detailed logs on init * Show OpenGL extensions and capabilities detailed logs on init
* *
* #define SUPPORT_COMPUTE_SHADERS
* Enable compute shaders and shader storage buffer object support.
* Currently only work with GRAPHICS_API_OPENGL_33 with appropriate driver support.
* *
* rlgl capabilities could be customized just defining some internal * rlgl capabilities could be customized just defining some internal
* values before library inclusion (default values listed): * values before library inclusion (default values listed):
@ -171,6 +169,11 @@
#define GRAPHICS_API_OPENGL_33 #define GRAPHICS_API_OPENGL_33
#endif #endif
// OpenGL 4.3 uses OpenGL 3.3 Core functionality
#if defined(GRAPHICS_API_OPENGL_43)
#define GRAPHICS_API_OPENGL_33
#endif
// Support framebuffer objects by default // Support framebuffer objects by default
// NOTE: Some driver implementation do not support it, despite they should // NOTE: Some driver implementation do not support it, despite they should
#define RLGL_RENDER_TEXTURES_HINT #define RLGL_RENDER_TEXTURES_HINT
@ -647,12 +650,12 @@ RLAPI unsigned int rlLoadShaderProgram(unsigned int vShaderId, unsigned int fSha
RLAPI void rlUnloadShaderProgram(unsigned int id); // Unload shader program RLAPI void rlUnloadShaderProgram(unsigned int id); // Unload shader program
RLAPI int rlGetLocationUniform(unsigned int shaderId, const char *uniformName); // Get shader location uniform RLAPI int rlGetLocationUniform(unsigned int shaderId, const char *uniformName); // Get shader location uniform
RLAPI int rlGetLocationAttrib(unsigned int shaderId, const char *attribName); // Get shader location attribute RLAPI int rlGetLocationAttrib(unsigned int shaderId, const char *attribName); // Get shader location attribute
RLAPI void rlSetUniform(int locIndex, const void *value, int uniformType, int count); // Set shader value uniform 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 rlSetUniformMatrix(int locIndex, Matrix mat); // Set shader value matrix
RLAPI void rlSetUniformSampler(int locIndex, unsigned int textureId); // Set shader value sampler 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) RLAPI void rlSetShader(unsigned int id, int *locs); // Set shader currently active (id and locations)
#if defined(SUPPORT_COMPUTE_SHADERS) #if defined(GRAPHICS_API_OPENGL_43)
// Compute shader management // Compute shader management
RLAPI unsigned int rlLoadComputeShaderProgram(unsigned int shaderId); RLAPI unsigned int rlLoadComputeShaderProgram(unsigned int shaderId);
RLAPI void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ); RLAPI void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ);
@ -3784,84 +3787,68 @@ unsigned int rlLoadComputeShaderProgram(unsigned int shaderId)
return program; return program;
} }
#if defined(SUPPORT_COMPUTE_SHADERS) #if defined(GRAPHICS_API_OPENGL_43)
void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ) void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ)
{ {
#if defined(GRAPHICS_API_OPENGL_33)
glDispatchCompute(groupX, groupY, groupZ); glDispatchCompute(groupX, groupY, groupZ);
#endif
} }
unsigned int rlLoadShaderBuffer(unsigned long long size, const void *data, int usageHint) unsigned int rlLoadShaderBuffer(unsigned long long size, const void *data, int usageHint)
{ {
unsigned int ssbo = 0; unsigned int ssbo = 0;
#if defined(GRAPHICS_API_OPENGL_33)
glGenBuffers(1, &ssbo); glGenBuffers(1, &ssbo);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo); glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo);
glBufferData(GL_SHADER_STORAGE_BUFFER, size, data, usageHint? usageHint : RL_STREAM_COPY); glBufferData(GL_SHADER_STORAGE_BUFFER, size, data, usageHint? usageHint : RL_STREAM_COPY);
#endif
return ssbo; return ssbo;
} }
void rlUnloadShaderBuffer(unsigned int ssboId) void rlUnloadShaderBuffer(unsigned int ssboId)
{ {
#if defined(GRAPHICS_API_OPENGL_33)
glDeleteBuffers(1, &ssboId); glDeleteBuffers(1, &ssboId);
#endif
} }
void rlUpdateShaderBufferElements(unsigned int id, const void *data, unsigned long long dataSize, unsigned long long offset) void rlUpdateShaderBufferElements(unsigned int id, const void *data, unsigned long long dataSize, unsigned long long offset)
{ {
#if defined(GRAPHICS_API_OPENGL_33)
glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); glBindBuffer(GL_SHADER_STORAGE_BUFFER, id);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, dataSize, data); glBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, dataSize, data);
#endif
} }
unsigned long long rlGetShaderBufferSize(unsigned int id) unsigned long long rlGetShaderBufferSize(unsigned int id)
{ {
khronos_int64_t size = 0; long long size = 0;
#if defined(GRAPHICS_API_OPENGL_33)
glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); glBindBuffer(GL_SHADER_STORAGE_BUFFER, id);
glGetInteger64v(GL_SHADER_STORAGE_BUFFER_SIZE, &size); glGetInteger64v(GL_SHADER_STORAGE_BUFFER_SIZE, &size);
#endif
return (size > 0) ? size : 0; return (size > 0) ? size : 0;
} }
void rlReadShaderBufferElements(unsigned int id, void *dest, unsigned long long count, unsigned long long offset) void rlReadShaderBufferElements(unsigned int id, void *dest, unsigned long long count, unsigned long long offset)
{ {
#if defined(GRAPHICS_API_OPENGL_33)
glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); glBindBuffer(GL_SHADER_STORAGE_BUFFER, id);
glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, count, dest); glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, count, dest);
#endif
} }
void rlBindShaderBuffer(unsigned int id, unsigned int index) void rlBindShaderBuffer(unsigned int id, unsigned int index)
{ {
#if defined(GRAPHICS_API_OPENGL_33)
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, index, id); glBindBufferBase(GL_SHADER_STORAGE_BUFFER, index, id);
#endif
} }
void rlCopyBuffersElements(unsigned int destId, unsigned int srcId, unsigned long long destOffset, unsigned long long srcOffset, unsigned long long count) void rlCopyBuffersElements(unsigned int destId, unsigned int srcId, unsigned long long destOffset, unsigned long long srcOffset, unsigned long long count)
{ {
#if defined(GRAPHICS_API_OPENGL_33)
glBindBuffer(GL_COPY_READ_BUFFER, srcId); glBindBuffer(GL_COPY_READ_BUFFER, srcId);
glBindBuffer(GL_COPY_WRITE_BUFFER, destId); glBindBuffer(GL_COPY_WRITE_BUFFER, destId);
glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, srcOffset, destOffset, count); glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, srcOffset, destOffset, count);
#endif
} }
void rlBindImageTexture(unsigned int id, unsigned int index, unsigned int format, int readonly) void rlBindImageTexture(unsigned int id, unsigned int index, unsigned int format, int readonly)
{ {
#if defined(GRAPHICS_API_OPENGL_33)
int glInternalFormat = 0, glFormat = 0, glType = 0; int glInternalFormat = 0, glFormat = 0, glType = 0;
rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType);
glBindImageTexture(index, id, 0, 0, 0, readonly ? GL_READ_ONLY : GL_READ_WRITE, glInternalFormat); glBindImageTexture(index, id, 0, 0, 0, readonly ? GL_READ_ONLY : GL_READ_WRITE, glInternalFormat);
#endif
} }
#endif #endif