GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname)
{
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (!_glfwPlatformGetCurrentContext())
{
_glfwInputError(GLFW_NO_CURRENT_CONTEXT, NULL);
return NULL;
}
return _glfwPlatformGetProcAddress(procname);
}
GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname)
{
if (!_glfwInitialized)
{
_glfwInputError(GLFW_NOT_INITIALIZED, NULL);
return NULL;
}
if (!_glfwPlatformGetCurrentContext())
{
_glfwInputError(GLFW_NO_CURRENT_CONTEXT, NULL);
return NULL;
}
return _glfwPlatformGetProcAddress(procname);
}
GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname)
{
if (!_glfwInitialized)
{
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
return NULL;
}
if (!_glfwLibrary.currentWindow)
{
_glfwSetError(GLFW_NO_CURRENT_CONTEXT, NULL);
return NULL;
}
return _glfwPlatformGetProcAddress(procname);
}
// Initialize GLX
//
int _glfwInitContextAPI(void)
{
#ifdef _GLFW_DLOPEN_LIBGL
int i;
char* libGL_names[ ] =
{
"libGL.so",
"libGL.so.1",
"/usr/lib/libGL.so",
"/usr/lib/libGL.so.1",
NULL
};
for (i = 0; libGL_names[i] != NULL; i++)
{
_glfw.glx.libGL = dlopen(libGL_names[i], RTLD_LAZY | RTLD_GLOBAL);
if (_glfw.glx.libGL)
break;
}
if (!_glfw.glx.libGL)
{
_glfwInputError(GLFW_PLATFORM_ERROR, "GLX: Failed to find libGL");
return GL_FALSE;
}
#endif
if (pthread_key_create(&_glfw.glx.current, NULL) != 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"GLX: Failed to create context TLS");
return GL_FALSE;
}
// Check if GLX is supported on this display
if (!glXQueryExtension(_glfw.x11.display,
&_glfw.glx.errorBase,
&_glfw.glx.eventBase))
{
_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: GLX support not found");
return GL_FALSE;
}
if (!glXQueryVersion(_glfw.x11.display,
&_glfw.glx.versionMajor,
&_glfw.glx.versionMinor))
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"GLX: Failed to query GLX version");
return GL_FALSE;
}
if (_glfwPlatformExtensionSupported("GLX_EXT_swap_control"))
{
_glfw.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalEXT");
if (_glfw.glx.SwapIntervalEXT)
_glfw.glx.EXT_swap_control = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_SGI_swap_control"))
{
_glfw.glx.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalSGI");
if (_glfw.glx.SwapIntervalSGI)
_glfw.glx.SGI_swap_control = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_MESA_swap_control"))
{
_glfw.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalMESA");
if (_glfw.glx.SwapIntervalMESA)
_glfw.glx.MESA_swap_control = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_SGIX_fbconfig"))
{
_glfw.glx.GetFBConfigAttribSGIX = (PFNGLXGETFBCONFIGATTRIBSGIXPROC)
_glfwPlatformGetProcAddress("glXGetFBConfigAttribSGIX");
_glfw.glx.ChooseFBConfigSGIX = (PFNGLXCHOOSEFBCONFIGSGIXPROC)
_glfwPlatformGetProcAddress("glXChooseFBConfigSGIX");
_glfw.glx.CreateContextWithConfigSGIX = (PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC)
_glfwPlatformGetProcAddress("glXCreateContextWithConfigSGIX");
_glfw.glx.GetVisualFromFBConfigSGIX = (PFNGLXGETVISUALFROMFBCONFIGSGIXPROC)
_glfwPlatformGetProcAddress("glXGetVisualFromFBConfigSGIX");
if (_glfw.glx.GetFBConfigAttribSGIX &&
_glfw.glx.ChooseFBConfigSGIX &&
_glfw.glx.CreateContextWithConfigSGIX &&
_glfw.glx.GetVisualFromFBConfigSGIX)
{
_glfw.glx.SGIX_fbconfig = GL_TRUE;
}
}
if (_glfwPlatformExtensionSupported("GLX_ARB_multisample"))
_glfw.glx.ARB_multisample = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_framebuffer_sRGB"))
_glfw.glx.ARB_framebuffer_sRGB = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context"))
{
_glfw.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
_glfwPlatformGetProcAddress("glXCreateContextAttribsARB");
if (_glfw.glx.CreateContextAttribsARB)
_glfw.glx.ARB_create_context = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_robustness"))
_glfw.glx.ARB_create_context_robustness = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_profile"))
_glfw.glx.ARB_create_context_profile = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_EXT_create_context_es2_profile"))
_glfw.glx.EXT_create_context_es2_profile = GL_TRUE;
return GL_TRUE;
}
// Initialize GLX
//
GLFWbool _glfwInitGLX(void)
{
int i;
const char* sonames[] =
{
#if defined(__CYGWIN__)
"libGL-1.so",
#else
"libGL.so.1",
"libGL.so",
#endif
NULL
};
for (i = 0; sonames[i]; i++)
{
_glfw.glx.handle = dlopen(sonames[i], RTLD_LAZY | RTLD_GLOBAL);
if (_glfw.glx.handle)
break;
}
if (!_glfw.glx.handle)
{
_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: Failed to load GLX");
return GLFW_FALSE;
}
_glfw.glx.GetFBConfigs =
dlsym(_glfw.glx.handle, "glXGetFBConfigs");
_glfw.glx.GetFBConfigAttrib =
dlsym(_glfw.glx.handle, "glXGetFBConfigAttrib");
_glfw.glx.GetClientString =
dlsym(_glfw.glx.handle, "glXGetClientString");
_glfw.glx.QueryExtension =
dlsym(_glfw.glx.handle, "glXQueryExtension");
_glfw.glx.QueryVersion =
dlsym(_glfw.glx.handle, "glXQueryVersion");
_glfw.glx.DestroyContext =
dlsym(_glfw.glx.handle, "glXDestroyContext");
_glfw.glx.MakeCurrent =
dlsym(_glfw.glx.handle, "glXMakeCurrent");
_glfw.glx.SwapBuffers =
dlsym(_glfw.glx.handle, "glXSwapBuffers");
_glfw.glx.QueryExtensionsString =
dlsym(_glfw.glx.handle, "glXQueryExtensionsString");
_glfw.glx.CreateNewContext =
dlsym(_glfw.glx.handle, "glXCreateNewContext");
_glfw.glx.CreateWindow =
dlsym(_glfw.glx.handle, "glXCreateWindow");
_glfw.glx.DestroyWindow =
dlsym(_glfw.glx.handle, "glXDestroyWindow");
_glfw.glx.GetProcAddress =
dlsym(_glfw.glx.handle, "glXGetProcAddress");
_glfw.glx.GetProcAddressARB =
dlsym(_glfw.glx.handle, "glXGetProcAddressARB");
_glfw.glx.GetVisualFromFBConfig =
dlsym(_glfw.glx.handle, "glXGetVisualFromFBConfig");
if (!glXQueryExtension(_glfw.x11.display,
&_glfw.glx.errorBase,
&_glfw.glx.eventBase))
{
_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: GLX extension not found");
return GLFW_FALSE;
}
if (!glXQueryVersion(_glfw.x11.display, &_glfw.glx.major, &_glfw.glx.minor))
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"GLX: Failed to query GLX version");
return GLFW_FALSE;
}
if (_glfw.glx.major == 1 && _glfw.glx.minor < 3)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"GLX: GLX version 1.3 is required");
return GLFW_FALSE;
}
if (_glfwPlatformExtensionSupported("GLX_EXT_swap_control"))
{
_glfw.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalEXT");
if (_glfw.glx.SwapIntervalEXT)
_glfw.glx.EXT_swap_control = GLFW_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_SGI_swap_control"))
{
_glfw.glx.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalSGI");
if (_glfw.glx.SwapIntervalSGI)
_glfw.glx.SGI_swap_control = GLFW_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_MESA_swap_control"))
{
_glfw.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalMESA");
if (_glfw.glx.SwapIntervalMESA)
_glfw.glx.MESA_swap_control = GLFW_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_ARB_multisample"))
_glfw.glx.ARB_multisample = GLFW_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_framebuffer_sRGB"))
_glfw.glx.ARB_framebuffer_sRGB = GLFW_TRUE;
if (_glfwPlatformExtensionSupported("GLX_EXT_framebuffer_sRGB"))
_glfw.glx.EXT_framebuffer_sRGB = GLFW_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context"))
{
_glfw.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
_glfwPlatformGetProcAddress("glXCreateContextAttribsARB");
if (_glfw.glx.CreateContextAttribsARB)
_glfw.glx.ARB_create_context = GLFW_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_robustness"))
_glfw.glx.ARB_create_context_robustness = GLFW_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_profile"))
_glfw.glx.ARB_create_context_profile = GLFW_TRUE;
if (_glfwPlatformExtensionSupported("GLX_EXT_create_context_es2_profile"))
_glfw.glx.EXT_create_context_es2_profile = GLFW_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_context_flush_control"))
_glfw.glx.ARB_context_flush_control = GLFW_TRUE;
return GLFW_TRUE;
}
// Initialize GLX
//
int _glfwInitContextAPI(void)
{
if (!_glfwInitTLS())
return GL_FALSE;
#ifdef _GLFW_DLOPEN_LIBGL
_glfw.glx.libGL = dlopen("libGL.so.1", RTLD_LAZY | RTLD_GLOBAL);
if (!_glfw.glx.libGL)
{
_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: Failed to find libGL");
return GL_FALSE;
}
#endif
if (!glXQueryExtension(_glfw.x11.display,
&_glfw.glx.errorBase,
&_glfw.glx.eventBase))
{
_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: GLX extension not found");
return GL_FALSE;
}
if (!glXQueryVersion(_glfw.x11.display,
&_glfw.glx.versionMajor,
&_glfw.glx.versionMinor))
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"GLX: Failed to query GLX version");
return GL_FALSE;
}
if (_glfw.glx.versionMajor == 1 && _glfw.glx.versionMinor < 3)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"GLX: GLX version 1.3 is required");
return GL_FALSE;
}
if (_glfwPlatformExtensionSupported("GLX_EXT_swap_control"))
{
_glfw.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalEXT");
if (_glfw.glx.SwapIntervalEXT)
_glfw.glx.EXT_swap_control = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_SGI_swap_control"))
{
_glfw.glx.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalSGI");
if (_glfw.glx.SwapIntervalSGI)
_glfw.glx.SGI_swap_control = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_MESA_swap_control"))
{
_glfw.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
_glfwPlatformGetProcAddress("glXSwapIntervalMESA");
if (_glfw.glx.SwapIntervalMESA)
_glfw.glx.MESA_swap_control = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_ARB_multisample"))
_glfw.glx.ARB_multisample = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_framebuffer_sRGB"))
_glfw.glx.ARB_framebuffer_sRGB = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context"))
{
_glfw.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
_glfwPlatformGetProcAddress("glXCreateContextAttribsARB");
if (_glfw.glx.CreateContextAttribsARB)
_glfw.glx.ARB_create_context = GL_TRUE;
}
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_robustness"))
_glfw.glx.ARB_create_context_robustness = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_create_context_profile"))
_glfw.glx.ARB_create_context_profile = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_EXT_create_context_es2_profile"))
_glfw.glx.EXT_create_context_es2_profile = GL_TRUE;
if (_glfwPlatformExtensionSupported("GLX_ARB_context_flush_control"))
_glfw.glx.ARB_context_flush_control = GL_TRUE;
return GL_TRUE;
}
