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magnum/src/MagnumExternal/OpenGL/GLES2/flextGLPlatformIOS.cpp

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iOS-specific function pointer loader. It seems that there is no such thing as eglGetProcAddress() and thus we are able to use only functions that are defined in the ES[23]/glext.h header and no others. So, currently, the function loader internally undefs all function name macros that were defined in our flextgl.h header, then includes the Apple's glext.h header and assigns function pointers of those extensions that are defined in the header. Apple also has some minor differences in function signatures (different constness of pointer-to-pointer variables) so I had to reinterpret_cast everything. Might seem to be uglier than including glext.h directly in our code, but I made bad experience when doing so -- I want to depend on my header bugs that are consistent across all platforms instead of depending on whatever changes Apple makes in its headers. I also want to have all functions defined and not only those that are supported on iOS. Phew. Thank you, flextGL, for making it way easier than it appeared to be at first.
10 years ago
#include "flextGL.h"
#undef glBlitFramebufferANGLE
#undef glRenderbufferStorageMultisampleANGLE
#undef glDrawArraysInstancedANGLE
#undef glDrawElementsInstancedANGLE
#undef glVertexAttribDivisorANGLE
#undef glRenderbufferStorageMultisampleAPPLE
#undef glResolveMultisampleFramebufferAPPLE
#undef glGetObjectLabelEXT
#undef glLabelObjectEXT
#undef glInsertEventMarkerEXT
#undef glPopGroupMarkerEXT
#undef glPushGroupMarkerEXT
#undef glDiscardFramebufferEXT
#undef glGetQueryObjecti64vEXT
#undef glGetQueryObjectivEXT
#undef glGetQueryObjectui64vEXT
#undef glQueryCounterEXT
#undef glDrawBuffersEXT
#undef glBlendEquationSeparateiEXT
#undef glBlendEquationiEXT
#undef glBlendFuncSeparateiEXT
#undef glBlendFunciEXT
#undef glColorMaskiEXT
#undef glDisableiEXT
#undef glEnableiEXT
#undef glIsEnablediEXT
#undef glDrawArraysInstancedEXT
#undef glDrawElementsInstancedEXT
#undef glVertexAttribDivisorEXT
#undef glFlushMappedBufferRangeEXT
#undef glMapBufferRangeEXT
#undef glMultiDrawArraysEXT
#undef glMultiDrawElementsEXT
#undef glFramebufferTexture2DMultisampleEXT
#undef glRenderbufferStorageMultisampleEXT
#undef glBeginQueryEXT
#undef glDeleteQueriesEXT
#undef glEndQueryEXT
#undef glGenQueriesEXT
#undef glGetQueryObjectuivEXT
#undef glGetQueryivEXT
#undef glIsQueryEXT
#undef glGetGraphicsResetStatusEXT
#undef glGetnUniformfvEXT
#undef glGetnUniformivEXT
#undef glReadnPixelsEXT
#undef glActiveShaderProgramEXT
#undef glBindProgramPipelineEXT
#undef glCreateShaderProgramvEXT
#undef glDeleteProgramPipelinesEXT
#undef glGenProgramPipelinesEXT
#undef glGetProgramPipelineInfoLogEXT
#undef glGetProgramPipelineivEXT
#undef glIsProgramPipelineEXT
#undef glProgramParameteriEXT
#undef glProgramUniform1fEXT
#undef glProgramUniform1fvEXT
#undef glProgramUniform1iEXT
#undef glProgramUniform1ivEXT
#undef glProgramUniform2fEXT
#undef glProgramUniform2fvEXT
#undef glProgramUniform2iEXT
#undef glProgramUniform2ivEXT
#undef glProgramUniform3fEXT
#undef glProgramUniform3fvEXT
#undef glProgramUniform3iEXT
#undef glProgramUniform3ivEXT
#undef glProgramUniform4fEXT
#undef glProgramUniform4fvEXT
#undef glProgramUniform4iEXT
#undef glProgramUniform4ivEXT
#undef glProgramUniformMatrix2fvEXT
#undef glProgramUniformMatrix3fvEXT
#undef glProgramUniformMatrix4fvEXT
#undef glUseProgramStagesEXT
#undef glValidateProgramPipelineEXT
#undef glGetSamplerParameterIivEXT
#undef glGetSamplerParameterIuivEXT
#undef glGetTexParameterIivEXT
#undef glGetTexParameterIuivEXT
#undef glSamplerParameterIivEXT
#undef glSamplerParameterIuivEXT
#undef glTexParameterIivEXT
#undef glTexParameterIuivEXT
#undef glTexStorage2DEXT
#undef glTexStorage3DEXT
#undef glBlendBarrierKHR
#undef glDebugMessageCallbackKHR
#undef glDebugMessageControlKHR
#undef glDebugMessageInsertKHR
#undef glGetDebugMessageLogKHR
#undef glGetObjectLabelKHR
#undef glGetObjectPtrLabelKHR
#undef glGetPointervKHR
#undef glObjectLabelKHR
#undef glObjectPtrLabelKHR
#undef glPopDebugGroupKHR
#undef glPushDebugGroupKHR
#undef glGetGraphicsResetStatusKHR
#undef glGetnUniformfvKHR
#undef glGetnUniformivKHR
#undef glGetnUniformuivKHR
#undef glReadnPixelsKHR
#undef glDrawBuffersNV
#undef glDrawArraysInstancedNV
#undef glDrawElementsInstancedNV
#undef glBlitFramebufferNV
#undef glRenderbufferStorageMultisampleNV
#undef glVertexAttribDivisorNV
#undef glPolygonModeNV
#undef glReadBufferNV
#undef glGetBufferPointervOES
#undef glMapBufferOES
#undef glUnmapBufferOES
#undef glCompressedTexImage3DOES
#undef glCompressedTexSubImage3DOES
#undef glCopyTexSubImage3DOES
#undef glFramebufferTexture3DOES
#undef glTexImage3DOES
#undef glTexSubImage3DOES
#undef glBindVertexArrayOES
#undef glDeleteVertexArraysOES
#undef glGenVertexArraysOES
#undef glIsVertexArrayOES
#include <ES2/glext.h>
void flextGLInit() {
external: remove extension functions that are not in GLES2. Moreover iOS GLES2 header doesn't have these defined, breaking the build.
10 years ago
/* Work around missing glTexStorage3D (can't be used anyway because GLES2
on iOS doesn't support OES_texture_3D) */
constexpr void(*glTexStorage3DEXT)() = nullptr;
iOS-specific function pointer loader. It seems that there is no such thing as eglGetProcAddress() and thus we are able to use only functions that are defined in the ES[23]/glext.h header and no others. So, currently, the function loader internally undefs all function name macros that were defined in our flextgl.h header, then includes the Apple's glext.h header and assigns function pointers of those extensions that are defined in the header. Apple also has some minor differences in function signatures (different constness of pointer-to-pointer variables) so I had to reinterpret_cast everything. Might seem to be uglier than including glext.h directly in our code, but I made bad experience when doing so -- I want to depend on my header bugs that are consistent across all platforms instead of depending on whatever changes Apple makes in its headers. I also want to have all functions defined and not only those that are supported on iOS. Phew. Thank you, flextGL, for making it way easier than it appeared to be at first.
10 years ago
/* GL_ANGLE_framebuffer_blit */
#if GL_ANGLE_framebuffer_blit
flextglBlitFramebufferANGLE = reinterpret_cast<void(APIENTRY*)(GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum)>(glBlitFramebufferANGLE);
#endif
/* GL_ANGLE_framebuffer_multisample */
#if GL_ANGLE_framebuffer_multisample
flextglRenderbufferStorageMultisampleANGLE = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, GLsizei, GLsizei)>(glRenderbufferStorageMultisampleANGLE);
#endif
/* GL_ANGLE_instanced_arrays */
#if GL_ANGLE_instanced_arrays
flextglDrawArraysInstancedANGLE = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLsizei, GLsizei)>(glDrawArraysInstancedANGLE);
flextglDrawElementsInstancedANGLE = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, const void *, GLsizei)>(glDrawElementsInstancedANGLE);
flextglVertexAttribDivisorANGLE = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint)>(glVertexAttribDivisorANGLE);
#endif
/* GL_APPLE_framebuffer_multisample */
#if GL_APPLE_framebuffer_multisample
flextglRenderbufferStorageMultisampleAPPLE = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, GLsizei, GLsizei)>(glRenderbufferStorageMultisampleAPPLE);
flextglResolveMultisampleFramebufferAPPLE = reinterpret_cast<void(APIENTRY*)(void)>(glResolveMultisampleFramebufferAPPLE);
#endif
/* GL_EXT_debug_label */
#if GL_EXT_debug_label
flextglGetObjectLabelEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint, GLsizei, GLsizei *, GLchar *)>(glGetObjectLabelEXT);
flextglLabelObjectEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint, GLsizei, const GLchar *)>(glLabelObjectEXT);
#endif
/* GL_EXT_debug_marker */
#if GL_EXT_debug_marker
flextglInsertEventMarkerEXT = reinterpret_cast<void(APIENTRY*)(GLsizei, const GLchar *)>(glInsertEventMarkerEXT);
flextglPopGroupMarkerEXT = reinterpret_cast<void(APIENTRY*)(void)>(glPopGroupMarkerEXT);
flextglPushGroupMarkerEXT = reinterpret_cast<void(APIENTRY*)(GLsizei, const GLchar *)>(glPushGroupMarkerEXT);
#endif
/* GL_EXT_discard_framebuffer */
#if GL_EXT_discard_framebuffer
flextglDiscardFramebufferEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, const GLenum *)>(glDiscardFramebufferEXT);
#endif
/* GL_EXT_disjoint_timer_query */
#if GL_EXT_disjoint_timer_query
flextglGetQueryObjecti64vEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLint64 *)>(glGetQueryObjecti64vEXT);
flextglGetQueryObjectivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLint *)>(glGetQueryObjectivEXT);
flextglGetQueryObjectui64vEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLuint64 *)>(glGetQueryObjectui64vEXT);
flextglQueryCounterEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum)>(glQueryCounterEXT);
#endif
/* GL_EXT_draw_buffers */
#if GL_EXT_draw_buffers
flextglDrawBuffersEXT = reinterpret_cast<void(APIENTRY*)(GLsizei, const GLenum *)>(glDrawBuffersEXT);
#endif
/* GL_EXT_draw_buffers_indexed */
#if GL_EXT_draw_buffers_indexed
flextglBlendEquationSeparateiEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLenum)>(glBlendEquationSeparateiEXT);
flextglBlendEquationiEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum)>(glBlendEquationiEXT);
flextglBlendFuncSeparateiEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLenum, GLenum, GLenum)>(glBlendFuncSeparateiEXT);
flextglBlendFunciEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLenum)>(glBlendFunciEXT);
flextglColorMaskiEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLboolean, GLboolean, GLboolean, GLboolean)>(glColorMaskiEXT);
flextglDisableiEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint)>(glDisableiEXT);
flextglEnableiEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint)>(glEnableiEXT);
flextglIsEnablediEXT = reinterpret_cast<GLboolean(APIENTRY*)(GLenum, GLuint)>(glIsEnablediEXT);
#endif
/* GL_EXT_instanced_arrays */
#if GL_EXT_instanced_arrays
flextglDrawArraysInstancedEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLsizei, GLsizei)>(glDrawArraysInstancedEXT);
flextglDrawElementsInstancedEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, const void *, GLsizei)>(glDrawElementsInstancedEXT);
flextglVertexAttribDivisorEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint)>(glVertexAttribDivisorEXT);
#endif
/* GL_EXT_map_buffer_range */
#if GL_EXT_map_buffer_range
flextglFlushMappedBufferRangeEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLintptr, GLsizeiptr)>(glFlushMappedBufferRangeEXT);
flextglMapBufferRangeEXT = reinterpret_cast<void *(APIENTRY*)(GLenum, GLintptr, GLsizeiptr, GLbitfield)>(glMapBufferRangeEXT);
#endif
/* GL_EXT_multi_draw_arrays */
#if GL_EXT_multi_draw_arrays
flextglMultiDrawArraysEXT = reinterpret_cast<void(APIENTRY*)(GLenum, const GLint *, const GLsizei *, GLsizei)>(glMultiDrawArraysEXT);
flextglMultiDrawElementsEXT = reinterpret_cast<void(APIENTRY*)(GLenum, const GLsizei *, GLenum, const void *const*, GLsizei)>(glMultiDrawElementsEXT);
#endif
/* GL_EXT_multisampled_render_to_texture */
#if GL_EXT_multisampled_render_to_texture
flextglFramebufferTexture2DMultisampleEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, GLenum, GLuint, GLint, GLsizei)>(glFramebufferTexture2DMultisampleEXT);
flextglRenderbufferStorageMultisampleEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, GLsizei, GLsizei)>(glRenderbufferStorageMultisampleEXT);
#endif
/* GL_EXT_occlusion_query_boolean */
#if GL_EXT_occlusion_query_boolean
flextglBeginQueryEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint)>(glBeginQueryEXT);
flextglDeleteQueriesEXT = reinterpret_cast<void(APIENTRY*)(GLsizei, const GLuint *)>(glDeleteQueriesEXT);
flextglEndQueryEXT = reinterpret_cast<void(APIENTRY*)(GLenum)>(glEndQueryEXT);
flextglGenQueriesEXT = reinterpret_cast<void(APIENTRY*)(GLsizei, GLuint *)>(glGenQueriesEXT);
flextglGetQueryObjectuivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLuint *)>(glGetQueryObjectuivEXT);
flextglGetQueryivEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, GLint *)>(glGetQueryivEXT);
flextglIsQueryEXT = reinterpret_cast<GLboolean(APIENTRY*)(GLuint)>(glIsQueryEXT);
#endif
/* GL_EXT_robustness */
#if GL_EXT_robustness
flextglGetGraphicsResetStatusEXT = reinterpret_cast<GLenum(APIENTRY*)(void)>(glGetGraphicsResetStatusEXT);
flextglGetnUniformfvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLfloat *)>(glGetnUniformfvEXT);
flextglGetnUniformivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLint *)>(glGetnUniformivEXT);
flextglReadnPixelsEXT = reinterpret_cast<void(APIENTRY*)(GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, GLsizei, void *)>(glReadnPixelsEXT);
#endif
/* GL_EXT_separate_shader_objects */
#if GL_EXT_separate_shader_objects
flextglActiveShaderProgramEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint)>(glActiveShaderProgramEXT);
flextglBindProgramPipelineEXT = reinterpret_cast<void(APIENTRY*)(GLuint)>(glBindProgramPipelineEXT);
flextglCreateShaderProgramvEXT = reinterpret_cast<GLuint(APIENTRY*)(GLenum, GLsizei, const GLchar **)>(glCreateShaderProgramvEXT);
flextglDeleteProgramPipelinesEXT = reinterpret_cast<void(APIENTRY*)(GLsizei, const GLuint *)>(glDeleteProgramPipelinesEXT);
flextglGenProgramPipelinesEXT = reinterpret_cast<void(APIENTRY*)(GLsizei, GLuint *)>(glGenProgramPipelinesEXT);
flextglGetProgramPipelineInfoLogEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLsizei, GLsizei *, GLchar *)>(glGetProgramPipelineInfoLogEXT);
flextglGetProgramPipelineivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLint *)>(glGetProgramPipelineivEXT);
flextglIsProgramPipelineEXT = reinterpret_cast<GLboolean(APIENTRY*)(GLuint)>(glIsProgramPipelineEXT);
flextglProgramParameteriEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLint)>(glProgramParameteriEXT);
flextglProgramUniform1fEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLfloat)>(glProgramUniform1fEXT);
flextglProgramUniform1fvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLfloat *)>(glProgramUniform1fvEXT);
flextglProgramUniform1iEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLint)>(glProgramUniform1iEXT);
flextglProgramUniform1ivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLint *)>(glProgramUniform1ivEXT);
flextglProgramUniform2fEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLfloat, GLfloat)>(glProgramUniform2fEXT);
flextglProgramUniform2fvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLfloat *)>(glProgramUniform2fvEXT);
flextglProgramUniform2iEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLint, GLint)>(glProgramUniform2iEXT);
flextglProgramUniform2ivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLint *)>(glProgramUniform2ivEXT);
flextglProgramUniform3fEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLfloat, GLfloat, GLfloat)>(glProgramUniform3fEXT);
flextglProgramUniform3fvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLfloat *)>(glProgramUniform3fvEXT);
flextglProgramUniform3iEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLint, GLint, GLint)>(glProgramUniform3iEXT);
flextglProgramUniform3ivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLint *)>(glProgramUniform3ivEXT);
flextglProgramUniform4fEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLfloat, GLfloat, GLfloat, GLfloat)>(glProgramUniform4fEXT);
flextglProgramUniform4fvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLfloat *)>(glProgramUniform4fvEXT);
flextglProgramUniform4iEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLint, GLint, GLint, GLint)>(glProgramUniform4iEXT);
flextglProgramUniform4ivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, const GLint *)>(glProgramUniform4ivEXT);
flextglProgramUniformMatrix2fvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLboolean, const GLfloat *)>(glProgramUniformMatrix2fvEXT);
flextglProgramUniformMatrix3fvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLboolean, const GLfloat *)>(glProgramUniformMatrix3fvEXT);
flextglProgramUniformMatrix4fvEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLboolean, const GLfloat *)>(glProgramUniformMatrix4fvEXT);
flextglUseProgramStagesEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLbitfield, GLuint)>(glUseProgramStagesEXT);
flextglValidateProgramPipelineEXT = reinterpret_cast<void(APIENTRY*)(GLuint)>(glValidateProgramPipelineEXT);
#endif
/* GL_EXT_texture_border_clamp */
#if GL_EXT_texture_border_clamp
flextglGetSamplerParameterIivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLint *)>(glGetSamplerParameterIivEXT);
flextglGetSamplerParameterIuivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, GLuint *)>(glGetSamplerParameterIuivEXT);
flextglGetTexParameterIivEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, GLint *)>(glGetTexParameterIivEXT);
flextglGetTexParameterIuivEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, GLuint *)>(glGetTexParameterIuivEXT);
flextglSamplerParameterIivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, const GLint *)>(glSamplerParameterIivEXT);
flextglSamplerParameterIuivEXT = reinterpret_cast<void(APIENTRY*)(GLuint, GLenum, const GLuint *)>(glSamplerParameterIuivEXT);
flextglTexParameterIivEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, const GLint *)>(glTexParameterIivEXT);
flextglTexParameterIuivEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, const GLuint *)>(glTexParameterIuivEXT);
#endif
/* GL_EXT_texture_storage */
#if GL_EXT_texture_storage
flextglTexStorage2DEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, GLsizei, GLsizei)>(glTexStorage2DEXT);
flextglTexStorage3DEXT = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, GLsizei, GLsizei, GLsizei)>(glTexStorage3DEXT);
#endif
/* GL_KHR_blend_equation_advanced */
#if GL_KHR_blend_equation_advanced
flextglBlendBarrierKHR = reinterpret_cast<void(APIENTRY*)(void)>(glBlendBarrierKHR);
#endif
/* GL_KHR_debug */
#if GL_KHR_debug
flextglDebugMessageCallbackKHR = reinterpret_cast<void(APIENTRY*)(GLDEBUGPROCKHR, const void *)>(glDebugMessageCallbackKHR);
flextglDebugMessageControlKHR = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, GLenum, GLsizei, const GLuint *, GLboolean)>(glDebugMessageControlKHR);
flextglDebugMessageInsertKHR = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, GLuint, GLenum, GLsizei, const GLchar *)>(glDebugMessageInsertKHR);
flextglGetDebugMessageLogKHR = reinterpret_cast<GLuint(APIENTRY*)(GLuint, GLsizei, GLenum *, GLenum *, GLuint *, GLenum *, GLsizei *, GLchar *)>(glGetDebugMessageLogKHR);
flextglGetObjectLabelKHR = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint, GLsizei, GLsizei *, GLchar *)>(glGetObjectLabelKHR);
flextglGetObjectPtrLabelKHR = reinterpret_cast<void(APIENTRY*)(const void *, GLsizei, GLsizei *, GLchar *)>(glGetObjectPtrLabelKHR);
flextglGetPointervKHR = reinterpret_cast<void(APIENTRY*)(GLenum, void **)>(glGetPointervKHR);
flextglObjectLabelKHR = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint, GLsizei, const GLchar *)>(glObjectLabelKHR);
flextglObjectPtrLabelKHR = reinterpret_cast<void(APIENTRY*)(const void *, GLsizei, const GLchar *)>(glObjectPtrLabelKHR);
flextglPopDebugGroupKHR = reinterpret_cast<void(APIENTRY*)(void)>(glPopDebugGroupKHR);
flextglPushDebugGroupKHR = reinterpret_cast<void(APIENTRY*)(GLenum, GLuint, GLsizei, const GLchar *)>(glPushDebugGroupKHR);
#endif
/* GL_KHR_robustness */
#if GL_KHR_robustness
flextglGetGraphicsResetStatusKHR = reinterpret_cast<GLenum(APIENTRY*)(void)>(glGetGraphicsResetStatusKHR);
flextglGetnUniformfvKHR = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLfloat *)>(glGetnUniformfvKHR);
flextglGetnUniformivKHR = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLint *)>(glGetnUniformivKHR);
flextglGetnUniformuivKHR = reinterpret_cast<void(APIENTRY*)(GLuint, GLint, GLsizei, GLuint *)>(glGetnUniformuivKHR);
flextglReadnPixelsKHR = reinterpret_cast<void(APIENTRY*)(GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, GLsizei, void *)>(glReadnPixelsKHR);
#endif
/* GL_NV_draw_buffers */
#if GL_NV_draw_buffers
flextglDrawBuffersNV = reinterpret_cast<void(APIENTRY*)(GLsizei, const GLenum *)>(glDrawBuffersNV);
#endif
/* GL_NV_draw_instanced */
#if GL_NV_draw_instanced
flextglDrawArraysInstancedNV = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLsizei, GLsizei)>(glDrawArraysInstancedNV);
flextglDrawElementsInstancedNV = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, const void *, GLsizei)>(glDrawElementsInstancedNV);
#endif
/* GL_NV_framebuffer_blit */
#if GL_NV_framebuffer_blit
flextglBlitFramebufferNV = reinterpret_cast<void(APIENTRY*)(GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum)>(glBlitFramebufferNV);
#endif
/* GL_NV_framebuffer_multisample */
#if GL_NV_framebuffer_multisample
flextglRenderbufferStorageMultisampleNV = reinterpret_cast<void(APIENTRY*)(GLenum, GLsizei, GLenum, GLsizei, GLsizei)>(glRenderbufferStorageMultisampleNV);
#endif
/* GL_NV_instanced_arrays */
#if GL_NV_instanced_arrays
flextglVertexAttribDivisorNV = reinterpret_cast<void(APIENTRY*)(GLuint, GLuint)>(glVertexAttribDivisorNV);
#endif
/* GL_NV_polygon_mode */
#if GL_NV_polygon_mode
flextglPolygonModeNV = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum)>(glPolygonModeNV);
#endif
/* GL_NV_read_buffer */
#if GL_NV_read_buffer
flextglReadBufferNV = reinterpret_cast<void(APIENTRY*)(GLenum)>(glReadBufferNV);
#endif
/* GL_OES_mapbuffer */
#if GL_OES_mapbuffer
flextglGetBufferPointervOES = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, void **)>(glGetBufferPointervOES);
flextglMapBufferOES = reinterpret_cast<void *(APIENTRY*)(GLenum, GLenum)>(glMapBufferOES);
flextglUnmapBufferOES = reinterpret_cast<GLboolean(APIENTRY*)(GLenum)>(glUnmapBufferOES);
#endif
/* GL_OES_texture_3D */
#if GL_OES_texture_3D
flextglCompressedTexImage3DOES = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLsizei, const void *)>(glCompressedTexImage3DOES);
flextglCompressedTexSubImage3DOES = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLsizei, const void *)>(glCompressedTexSubImage3DOES);
flextglCopyTexSubImage3DOES = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLint, GLint, GLint, GLint, GLint, GLsizei, GLsizei)>(glCopyTexSubImage3DOES);
flextglFramebufferTexture3DOES = reinterpret_cast<void(APIENTRY*)(GLenum, GLenum, GLenum, GLuint, GLint, GLint)>(glFramebufferTexture3DOES);
flextglTexImage3DOES = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const void *)>(glTexImage3DOES);
flextglTexSubImage3DOES = reinterpret_cast<void(APIENTRY*)(GLenum, GLint, GLint, GLint, GLint, GLsizei, GLsizei, GLsizei, GLenum, GLenum, const void *)>(glTexSubImage3DOES);
#endif
/* GL_OES_vertex_array_object */
#if GL_OES_vertex_array_object
flextglBindVertexArrayOES = reinterpret_cast<void(APIENTRY*)(GLuint)>(glBindVertexArrayOES);
flextglDeleteVertexArraysOES = reinterpret_cast<void(APIENTRY*)(GLsizei, const GLuint *)>(glDeleteVertexArraysOES);
flextglGenVertexArraysOES = reinterpret_cast<void(APIENTRY*)(GLsizei, GLuint *)>(glGenVertexArraysOES);
flextglIsVertexArrayOES = reinterpret_cast<GLboolean(APIENTRY*)(GLuint)>(glIsVertexArrayOES);
#endif
}