// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Engine - Renderer module"
// For conditions of distribution and use, see copyright notice in Config.hpp

#pragma once

#ifndef NAZARA_OPENGL_HPP
#define NAZARA_OPENGL_HPP
#ifdef NAZARA_RENDERER_OPENGL

#include <Nazara/Core/String.hpp>
#include <Nazara/Math/Rect.hpp>
#include <Nazara/Prerequisites.hpp>
#include <Nazara/Renderer/Config.hpp>
#include <Nazara/Renderer/Enums.hpp>
#include <Nazara/Utility/Enums.hpp>

// Inclusion des headers OpenGL

#include <GL/glcorearb.h>
#include <GL/glext.h>

#if defined(NAZARA_PLATFORM_SDL2)
	#include <SDL2/SDL_video.h>
#endif

#if defined(NAZARA_PLATFORM_WINDOWS)
	#include <GL/wglext.h>
#elif defined(NAZARA_PLATFORM_GLX)
namespace GLX
{
	#include <GL/glx.h> // Defined in a namespace to avoid conflict
}
	#include <GL/glxext.h>
#endif

namespace Nz
{
	enum OpenGLExtension
	{
		OpenGLExtension_AnisotropicFilter,
		OpenGLExtension_DebugOutput,
		OpenGLExtension_FP64,
		OpenGLExtension_GetProgramBinary,
		OpenGLExtension_SeparateShaderObjects,
		OpenGLExtension_SeamlessCubeMap,
		OpenGLExtension_Shader_ImageLoadStore,
		OpenGLExtension_TextureCompression_s3tc,
		OpenGLExtension_TextureStorage,

		OpenGLExtension_Max = OpenGLExtension_TextureStorage
	};

	class Context;
	struct RenderStates;
	class RenderTarget;

	using OpenGLFunc = void (*)();

	class NAZARA_RENDERER_API OpenGL
	{
		friend Context;

		public:
			enum FormatType
			{
				FormatType_RenderBuffer,
//				FormatType_MultisampleTexture,
				FormatType_Texture
			};

			struct Format
			{
				GLenum dataFormat;
				GLenum dataType;
				GLint internalFormat;
				GLint swizzle[4];
			};

			OpenGL() = delete;
			~OpenGL() = delete;

			static void ApplyStates(const RenderStates& states);

			static void BindBuffer(BufferType type, GLuint id);
			static void BindProgram(GLuint id);
			static void BindSampler(GLuint unit, GLuint id);
			static void BindScissorBox(const Recti& scissorBox);
			static void BindTexture(ImageType type, GLuint id);
			static void BindTexture(unsigned int textureUnit, ImageType type, GLuint id);
			static void BindTextureUnit(unsigned int textureUnit);
			static void BindViewport(const Recti& viewport);

			static void DeleteBuffer(BufferType type, GLuint id);
			static void DeleteFrameBuffer(const Context* context, GLuint id);
			static void DeleteProgram(GLuint id);
			static void DeleteSampler(GLuint id);
			static void DeleteTexture(GLuint id);
			static void DeleteVertexArray(const Context* context, GLuint id);

			static GLuint GetCurrentBuffer(BufferType type);
			static GLuint GetCurrentProgram();
			static Recti GetCurrentScissorBox();
			static const RenderTarget* GetCurrentTarget();
			static GLuint GetCurrentTexture();
			static GLuint GetCurrentTexture(unsigned int textureUnit);
			static unsigned int GetCurrentTextureUnit();
			static Recti GetCurrentViewport();

			static OpenGLFunc GetEntry(const String& entryPoint);
			static unsigned int GetGLSLVersion();
			static String GetRendererName();
			static String GetVendorName();
			static unsigned int GetVersion();

			static bool Initialize();

			static bool IsInitialized();
			static bool IsSupported(OpenGLExtension extension);
			static bool IsSupported(const String& string);

			static void SetBuffer(BufferType type, GLuint id);
			static void SetProgram(GLuint id);
			static void SetScissorBox(const Recti& scissorBox);
			static void SetTarget(const RenderTarget* renderTarget);
			static void SetTexture(GLuint id);
			static void SetTexture(unsigned int textureUnit, GLuint id);
			static void SetTextureUnit(unsigned int textureUnit);
			static void SetViewport(const Recti& viewport);

			static bool TranslateFormat(PixelFormatType pixelFormat, Format* format, FormatType target);

			static void Uninitialize();

			static GLenum Attachment[AttachmentPoint_Max + 1];
			static GLenum BlendFunc[BlendFunc_Max + 1];
			static GLenum BufferLock[BufferAccess_Max + 1];
			static GLenum BufferLockRange[BufferAccess_Max + 1];
			static GLenum BufferTarget[BufferType_Max + 1];
			static GLenum BufferTargetBinding[BufferType_Max + 1];
			static GLenum ComponentType[ComponentType_Max + 1];
			static GLenum CubemapFace[6]; // Un cube possède six faces et ça n'est pas près de changer
			static GLenum FaceFilling[FaceFilling_Max + 1];
			static GLenum FaceSide[FaceSide_Max + 1];
			static GLenum PrimitiveMode[PrimitiveMode_Max + 1];
			static GLenum QueryCondition[GpuQueryCondition_Max + 1];
			static GLenum QueryMode[GpuQueryMode_Max + 1];
			static GLenum RendererComparison[RendererComparison_Max + 1];
			static GLenum RendererParameter[RendererParameter_Max + 1];
			static GLenum SamplerWrapMode[SamplerWrap_Max + 1];
			static GLenum ShaderStage[ShaderStageType_Max + 1];
			static GLenum StencilOperation[StencilOperation_Max + 1];
			static GLenum TextureTarget[ImageType_Max + 1];
			static GLenum TextureTargetBinding[ImageType_Max + 1];
			static GLenum TextureTargetProxy[ImageType_Max + 1];
			static UInt8 VertexComponentIndex[VertexComponent_Max + 1];

		private:
			static void OnContextChanged(const Context* newContext);
			static void OnContextDestruction(const Context* context);
	};

	NAZARA_RENDERER_API extern PFNGLACTIVETEXTUREPROC glActiveTexture;
	NAZARA_RENDERER_API extern PFNGLATTACHSHADERPROC glAttachShader;
	NAZARA_RENDERER_API extern PFNGLBEGINCONDITIONALRENDERPROC glBeginConditionalRender;
	NAZARA_RENDERER_API extern PFNGLBEGINQUERYPROC glBeginQuery;
	NAZARA_RENDERER_API extern PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation;
	NAZARA_RENDERER_API extern PFNGLBINDBUFFERPROC glBindBuffer;
	NAZARA_RENDERER_API extern PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
	NAZARA_RENDERER_API extern PFNGLBINDFRAGDATALOCATIONPROC glBindFragDataLocation;
	NAZARA_RENDERER_API extern PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer;
	NAZARA_RENDERER_API extern PFNGLBINDSAMPLERPROC glBindSampler;
	NAZARA_RENDERER_API extern PFNGLBINDTEXTUREPROC glBindTexture;
	NAZARA_RENDERER_API extern PFNGLBINDVERTEXARRAYPROC glBindVertexArray;
	NAZARA_RENDERER_API extern PFNGLBLENDFUNCPROC glBlendFunc;
	NAZARA_RENDERER_API extern PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate;
	NAZARA_RENDERER_API extern PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
	NAZARA_RENDERER_API extern PFNGLBUFFERDATAPROC glBufferData;
	NAZARA_RENDERER_API extern PFNGLBUFFERSUBDATAPROC glBufferSubData;
	NAZARA_RENDERER_API extern PFNGLCLEARPROC glClear;
	NAZARA_RENDERER_API extern PFNGLCLEARCOLORPROC glClearColor;
	NAZARA_RENDERER_API extern PFNGLCLEARDEPTHPROC glClearDepth;
	NAZARA_RENDERER_API extern PFNGLCLEARSTENCILPROC glClearStencil;
	NAZARA_RENDERER_API extern PFNGLCREATEPROGRAMPROC glCreateProgram;
	NAZARA_RENDERER_API extern PFNGLCREATESHADERPROC glCreateShader;
	NAZARA_RENDERER_API extern PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
	NAZARA_RENDERER_API extern PFNGLCOLORMASKPROC glColorMask;
	NAZARA_RENDERER_API extern PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glCompressedTexSubImage1D;
	NAZARA_RENDERER_API extern PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glCompressedTexSubImage2D;
	NAZARA_RENDERER_API extern PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glCompressedTexSubImage3D;
	NAZARA_RENDERER_API extern PFNGLCULLFACEPROC glCullFace;
	NAZARA_RENDERER_API extern PFNGLCOMPILESHADERPROC glCompileShader;
	NAZARA_RENDERER_API extern PFNGLCOPYTEXSUBIMAGE2DPROC glCopyTexSubImage2D;
	NAZARA_RENDERER_API extern PFNGLDEBUGMESSAGECALLBACKPROC glDebugMessageCallback;
	NAZARA_RENDERER_API extern PFNGLDEBUGMESSAGECONTROLPROC glDebugMessageControl;
	NAZARA_RENDERER_API extern PFNGLDEBUGMESSAGEINSERTPROC glDebugMessageInsert;
	NAZARA_RENDERER_API extern PFNGLDELETEBUFFERSPROC glDeleteBuffers;
	NAZARA_RENDERER_API extern PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers;
	NAZARA_RENDERER_API extern PFNGLDELETEPROGRAMPROC glDeleteProgram;
	NAZARA_RENDERER_API extern PFNGLDELETEQUERIESPROC glDeleteQueries;
	NAZARA_RENDERER_API extern PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers;
	NAZARA_RENDERER_API extern PFNGLDELETESAMPLERSPROC glDeleteSamplers;
	NAZARA_RENDERER_API extern PFNGLDELETESHADERPROC glDeleteShader;
	NAZARA_RENDERER_API extern PFNGLDELETETEXTURESPROC glDeleteTextures;
	NAZARA_RENDERER_API extern PFNGLDELETEVERTEXARRAYSPROC glDeleteVertexArrays;
	NAZARA_RENDERER_API extern PFNGLDEPTHFUNCPROC glDepthFunc;
	NAZARA_RENDERER_API extern PFNGLDEPTHMASKPROC glDepthMask;
	NAZARA_RENDERER_API extern PFNGLDISABLEPROC glDisable;
	NAZARA_RENDERER_API extern PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
	NAZARA_RENDERER_API extern PFNGLDRAWARRAYSPROC glDrawArrays;
	NAZARA_RENDERER_API extern PFNGLDRAWARRAYSINSTANCEDPROC glDrawArraysInstanced;
	NAZARA_RENDERER_API extern PFNGLDRAWBUFFERPROC glDrawBuffer;
	NAZARA_RENDERER_API extern PFNGLDRAWBUFFERSPROC glDrawBuffers;
	NAZARA_RENDERER_API extern PFNGLDRAWELEMENTSPROC glDrawElements;
	NAZARA_RENDERER_API extern PFNGLDRAWELEMENTSINSTANCEDPROC glDrawElementsInstanced;
	NAZARA_RENDERER_API extern PFNGLDRAWTEXTURENVPROC glDrawTexture;
	NAZARA_RENDERER_API extern PFNGLENABLEPROC glEnable;
	NAZARA_RENDERER_API extern PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
	NAZARA_RENDERER_API extern PFNGLENDCONDITIONALRENDERPROC glEndConditionalRender;
	NAZARA_RENDERER_API extern PFNGLENDQUERYPROC glEndQuery;
	NAZARA_RENDERER_API extern PFNGLFLUSHPROC glFlush;
	NAZARA_RENDERER_API extern PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer;
	NAZARA_RENDERER_API extern PFNGLFRAMEBUFFERTEXTUREPROC glFramebufferTexture;
	NAZARA_RENDERER_API extern PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D;
	NAZARA_RENDERER_API extern PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
	NAZARA_RENDERER_API extern PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D;
	NAZARA_RENDERER_API extern PFNGLFRAMEBUFFERTEXTURELAYERPROC glFramebufferTextureLayer;
	NAZARA_RENDERER_API extern PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
	NAZARA_RENDERER_API extern PFNGLGENBUFFERSPROC glGenBuffers;
	NAZARA_RENDERER_API extern PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
	NAZARA_RENDERER_API extern PFNGLGENQUERIESPROC glGenQueries;
	NAZARA_RENDERER_API extern PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers;
	NAZARA_RENDERER_API extern PFNGLGENSAMPLERSPROC glGenSamplers;
	NAZARA_RENDERER_API extern PFNGLGENTEXTURESPROC glGenTextures;
	NAZARA_RENDERER_API extern PFNGLGENVERTEXARRAYSPROC glGenVertexArrays;
	NAZARA_RENDERER_API extern PFNGLGETACTIVEUNIFORMPROC glGetActiveUniform;
	NAZARA_RENDERER_API extern PFNGLGETBOOLEANVPROC glGetBooleanv;
	NAZARA_RENDERER_API extern PFNGLGETBUFFERPARAMETERIVPROC glGetBufferParameteriv;
	NAZARA_RENDERER_API extern PFNGLGETDEBUGMESSAGELOGPROC glGetDebugMessageLog;
	NAZARA_RENDERER_API extern PFNGLGETERRORPROC glGetError;
	NAZARA_RENDERER_API extern PFNGLGETFLOATVPROC glGetFloatv;
	NAZARA_RENDERER_API extern PFNGLGETINTEGERVPROC glGetIntegerv;
	NAZARA_RENDERER_API extern PFNGLGETPROGRAMBINARYPROC glGetProgramBinary;
	NAZARA_RENDERER_API extern PFNGLGETPROGRAMIVPROC glGetProgramiv;
	NAZARA_RENDERER_API extern PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog;
	NAZARA_RENDERER_API extern PFNGLGETQUERYIVPROC glGetQueryiv;
	NAZARA_RENDERER_API extern PFNGLGETQUERYOBJECTIVPROC glGetQueryObjectiv;
	NAZARA_RENDERER_API extern PFNGLGETQUERYOBJECTUIVPROC glGetQueryObjectuiv;
	NAZARA_RENDERER_API extern PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
	NAZARA_RENDERER_API extern PFNGLGETSHADERIVPROC glGetShaderiv;
	NAZARA_RENDERER_API extern PFNGLGETSHADERSOURCEPROC glGetShaderSource;
	NAZARA_RENDERER_API extern PFNGLGETSTRINGPROC glGetString;
	NAZARA_RENDERER_API extern PFNGLGETSTRINGIPROC glGetStringi;
	NAZARA_RENDERER_API extern PFNGLGETTEXIMAGEPROC glGetTexImage;
	NAZARA_RENDERER_API extern PFNGLGETTEXLEVELPARAMETERFVPROC glGetTexLevelParameterfv;
	NAZARA_RENDERER_API extern PFNGLGETTEXLEVELPARAMETERIVPROC glGetTexLevelParameteriv;
	NAZARA_RENDERER_API extern PFNGLGETTEXPARAMETERFVPROC glGetTexParameterfv;
	NAZARA_RENDERER_API extern PFNGLGETTEXPARAMETERIVPROC glGetTexParameteriv;
	NAZARA_RENDERER_API extern PFNGLGETUNIFORMFVPROC glGetUniformfv;
	NAZARA_RENDERER_API extern PFNGLGETUNIFORMIVPROC glGetUniformiv;
	NAZARA_RENDERER_API extern PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation;
	NAZARA_RENDERER_API extern PFNGLINVALIDATEBUFFERDATAPROC glInvalidateBufferData;
	NAZARA_RENDERER_API extern PFNGLISENABLEDPROC glIsEnabled;
	NAZARA_RENDERER_API extern PFNGLLINEWIDTHPROC glLineWidth;
	NAZARA_RENDERER_API extern PFNGLLINKPROGRAMPROC glLinkProgram;
	NAZARA_RENDERER_API extern PFNGLMAPBUFFERPROC glMapBuffer;
	NAZARA_RENDERER_API extern PFNGLMAPBUFFERRANGEPROC glMapBufferRange;
	NAZARA_RENDERER_API extern PFNGLPIXELSTOREIPROC glPixelStorei;
	NAZARA_RENDERER_API extern PFNGLPOINTSIZEPROC glPointSize;
	NAZARA_RENDERER_API extern PFNGLPOLYGONMODEPROC glPolygonMode;
	NAZARA_RENDERER_API extern PFNGLPROGRAMBINARYPROC glProgramBinary;
	NAZARA_RENDERER_API extern PFNGLPROGRAMPARAMETERIPROC glProgramParameteri;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM1DPROC glProgramUniform1d;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM1FPROC glProgramUniform1f;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM1IPROC glProgramUniform1i;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM1DVPROC glProgramUniform1dv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM1FVPROC glProgramUniform1fv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM1IVPROC glProgramUniform1iv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM2DVPROC glProgramUniform2dv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM2FVPROC glProgramUniform2fv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM2IVPROC glProgramUniform2iv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM3DVPROC glProgramUniform3dv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM3FVPROC glProgramUniform3fv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM3IVPROC glProgramUniform3iv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM4DVPROC glProgramUniform4dv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM4FVPROC glProgramUniform4fv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORM4IVPROC glProgramUniform4iv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORMMATRIX4DVPROC glProgramUniformMatrix4dv;
	NAZARA_RENDERER_API extern PFNGLPROGRAMUNIFORMMATRIX4FVPROC glProgramUniformMatrix4fv;
	NAZARA_RENDERER_API extern PFNGLREADPIXELSPROC glReadPixels;
	NAZARA_RENDERER_API extern PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage;
	NAZARA_RENDERER_API extern PFNGLSAMPLERPARAMETERFPROC glSamplerParameterf;
	NAZARA_RENDERER_API extern PFNGLSAMPLERPARAMETERIPROC glSamplerParameteri;
	NAZARA_RENDERER_API extern PFNGLSCISSORPROC glScissor;
	NAZARA_RENDERER_API extern PFNGLSHADERSOURCEPROC glShaderSource;
	NAZARA_RENDERER_API extern PFNGLSTENCILFUNCPROC glStencilFunc;
	NAZARA_RENDERER_API extern PFNGLSTENCILFUNCSEPARATEPROC glStencilFuncSeparate;
	NAZARA_RENDERER_API extern PFNGLSTENCILOPPROC glStencilOp;
	NAZARA_RENDERER_API extern PFNGLSTENCILOPSEPARATEPROC glStencilOpSeparate;
	NAZARA_RENDERER_API extern PFNGLTEXIMAGE1DPROC glTexImage1D;
	NAZARA_RENDERER_API extern PFNGLTEXIMAGE2DPROC glTexImage2D;
	NAZARA_RENDERER_API extern PFNGLTEXIMAGE3DPROC glTexImage3D;
	NAZARA_RENDERER_API extern PFNGLTEXPARAMETERFPROC glTexParameterf;
	NAZARA_RENDERER_API extern PFNGLTEXPARAMETERIPROC glTexParameteri;
	NAZARA_RENDERER_API extern PFNGLTEXSTORAGE1DPROC glTexStorage1D;
	NAZARA_RENDERER_API extern PFNGLTEXSTORAGE2DPROC glTexStorage2D;
	NAZARA_RENDERER_API extern PFNGLTEXSTORAGE3DPROC glTexStorage3D;
	NAZARA_RENDERER_API extern PFNGLTEXSUBIMAGE1DPROC glTexSubImage1D;
	NAZARA_RENDERER_API extern PFNGLTEXSUBIMAGE2DPROC glTexSubImage2D;
	NAZARA_RENDERER_API extern PFNGLTEXSUBIMAGE3DPROC glTexSubImage3D;
	NAZARA_RENDERER_API extern PFNGLUNIFORM1DPROC glUniform1d;
	NAZARA_RENDERER_API extern PFNGLUNIFORM1FPROC glUniform1f;
	NAZARA_RENDERER_API extern PFNGLUNIFORM1IPROC glUniform1i;
	NAZARA_RENDERER_API extern PFNGLUNIFORM1DVPROC glUniform1dv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM1FVPROC glUniform1fv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM1IVPROC glUniform1iv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM2DVPROC glUniform2dv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM2FVPROC glUniform2fv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM2IVPROC glUniform2iv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM3DVPROC glUniform3dv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM3FVPROC glUniform3fv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM3IVPROC glUniform3iv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM4DVPROC glUniform4dv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM4FVPROC glUniform4fv;
	NAZARA_RENDERER_API extern PFNGLUNIFORM4IVPROC glUniform4iv;
	NAZARA_RENDERER_API extern PFNGLUNIFORMMATRIX4DVPROC glUniformMatrix4dv;
	NAZARA_RENDERER_API extern PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv;
	NAZARA_RENDERER_API extern PFNGLUNMAPBUFFERPROC glUnmapBuffer;
	NAZARA_RENDERER_API extern PFNGLUSEPROGRAMPROC glUseProgram;
	NAZARA_RENDERER_API extern PFNGLVALIDATEPROGRAMPROC glValidateProgram;
	NAZARA_RENDERER_API extern PFNGLVERTEXATTRIB4FPROC glVertexAttrib4f;
	NAZARA_RENDERER_API extern PFNGLVERTEXATTRIBDIVISORPROC glVertexAttribDivisor;
	NAZARA_RENDERER_API extern PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
	NAZARA_RENDERER_API extern PFNGLVERTEXATTRIBIPOINTERPROC glVertexAttribIPointer;
	NAZARA_RENDERER_API extern PFNGLVERTEXATTRIBLPOINTERPROC glVertexAttribLPointer;
	NAZARA_RENDERER_API extern PFNGLVIEWPORTPROC glViewport;
#if defined(NAZARA_PLATFORM_WINDOWS)
	NAZARA_RENDERER_API extern PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormat;
	NAZARA_RENDERER_API extern PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs;
	NAZARA_RENDERER_API extern PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB;
	NAZARA_RENDERER_API extern PFNWGLGETEXTENSIONSSTRINGEXTPROC wglGetExtensionsStringEXT;
	NAZARA_RENDERER_API extern PFNWGLSWAPINTERVALEXTPROC wglSwapInterval;
#elif defined(NAZARA_PLATFORM_GLX)
	NAZARA_RENDERER_API extern GLX::PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribs;
	NAZARA_RENDERER_API extern GLX::PFNGLXSWAPINTERVALEXTPROC glXSwapIntervalEXT;
	NAZARA_RENDERER_API extern GLX::PFNGLXSWAPINTERVALMESAPROC NzglXSwapIntervalMESA;
	NAZARA_RENDERER_API extern GLX::PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalSGI;
#endif

}

#undef None

#endif // NAZARA_RENDERER_OPENGL

#endif // NAZARA_OPENGL_HPP