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Move OpenGL extensions loading to rlgl

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This commit is contained in:
raysan5 2016-06-14 15:42:04 +02:00
parent 3a5fc0c320
commit c25b4cdc69
3 changed files with 25 additions and 19 deletions
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20
src/core.c
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@ -58,10 +58,6 @@
#define PLATFORM_DESKTOP // Enable PLATFORM_DESKTOP code-base
#endif
#if defined(PLATFORM_DESKTOP)
#include "external/glad.h" // GLAD library: Manage OpenGL headers and extensions
#endif
#if defined(PLATFORM_OCULUS)
#include "../examples/oculus_glfw_sample/OculusSDK/LibOVR/Include/OVR_CAPI_GL.h" // Oculus SDK for OpenGL
#endif
@ -1747,19 +1743,9 @@ static void InitDisplay(int width, int height)
#endif
#if defined(PLATFORM_DESKTOP)
// Load OpenGL 3.3 extensions using GLAD
if (rlGetVersion() == OPENGL_33)
{
// NOTE: glad is generated and contains only required OpenGL 3.3 Core extensions
if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) TraceLog(WARNING, "GLAD: Cannot load OpenGL extensions");
else TraceLog(INFO, "GLAD: OpenGL extensions loaded successfully");
if (GLAD_GL_VERSION_3_3) TraceLog(INFO, "OpenGL 3.3 Core profile supported");
else TraceLog(ERROR, "OpenGL 3.3 Core profile not supported");
// With GLAD, we can check if an extension is supported using the GLAD_GL_xxx booleans
//if (GLAD_GL_ARB_vertex_array_object) // Use GL_ARB_vertex_array_object
}
// Load OpenGL 3.3 extensions
// NOTE: GLFW loader function is passed as parameter
rlglLoadExtensions(glfwGetProcAddress);
#endif
// Enables GPU v-sync, so frames are not limited to screen refresh rate (60Hz -> 60 FPS)

21
src/rlgl.c
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@ -872,6 +872,23 @@ int rlGetVersion(void)
#endif
}
// Load OpenGL extensions
// NOTE: External loader function could be passed as a pointer
void rlglLoadExtensions(void *loader)
{
#if defined(GRAPHICS_API_OPENGL_33)
// NOTE: glad is generated and contains only required OpenGL 3.3 Core extensions
if (!gladLoadGLLoader((GLADloadproc)loader)) TraceLog(WARNING, "GLAD: Cannot load OpenGL extensions");
else TraceLog(INFO, "GLAD: OpenGL extensions loaded successfully");
if (GLAD_GL_VERSION_3_3) TraceLog(INFO, "OpenGL 3.3 Core profile supported");
else TraceLog(ERROR, "OpenGL 3.3 Core profile not supported");
// With GLAD, we can check if an extension is supported using the GLAD_GL_xxx booleans
//if (GLAD_GL_ARB_vertex_array_object) // Use GL_ARB_vertex_array_object
#endif
}
//----------------------------------------------------------------------------------
// Module Functions Definition - rlgl Functions
//----------------------------------------------------------------------------------
@ -1184,11 +1201,13 @@ unsigned int rlglLoadTexture(void *data, int width, int height, int textureForma
GLuint id = 0;
// Check texture format support by OpenGL 1.1 (compressed textures not supported)
if ((rlGetVersion() == OPENGL_11) && (textureFormat >= 8))
#if defined(GRAPHICS_API_OPENGL_11)
if (textureFormat >= 8)
{
TraceLog(WARNING, "OpenGL 1.1 does not support GPU compressed texture formats");
return id;
}
#endif
if ((!texCompDXTSupported) && ((textureFormat == COMPRESSED_DXT1_RGB) || (textureFormat == COMPRESSED_DXT1_RGBA) ||
(textureFormat == COMPRESSED_DXT3_RGBA) || (textureFormat == COMPRESSED_DXT5_RGBA)))

3
src/rlgl.h
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@ -48,7 +48,7 @@
// Choose opengl version here or just define it at compile time: -DGRAPHICS_API_OPENGL_33
//#define GRAPHICS_API_OPENGL_11 // Only available on PLATFORM_DESKTOP
//#define GRAPHICS_API_OPENGL_33 // Only available on PLATFORM_DESKTOP
//#define GRAPHICS_API_OPENGL_33 // Only available on PLATFORM_DESKTOP or PLATFORM_OCULUS
//#define GRAPHICS_API_OPENGL_ES2 // Only available on PLATFORM_ANDROID or PLATFORM_RPI or PLATFORM_WEB
// Security check in case no GRAPHICS_API_OPENGL_* defined
@ -296,6 +296,7 @@ void rlglInit(void); // Initialize rlgl (shaders, VAO
void rlglClose(void); // De-init rlgl
void rlglDraw(void); // Draw VAO/VBO
void rlglInitGraphics(int offsetX, int offsetY, int width, int height); // Initialize Graphics (OpenGL stuff)
void rlglLoadExtensions(void *loader); // Load OpenGL extensions
unsigned int rlglLoadTexture(void *data, int width, int height, int textureFormat, int mipmapCount); // Load texture in GPU
RenderTexture2D rlglLoadRenderTexture(int width, int height); // Load a texture to be used for rendering (fbo with color and depth attachments)