// Copyright (C) 2012 Jérôme Leclercq
// This file is part of the "Nazara Engine".
// For conditions of distribution and use, see copyright notice in Config.hpp

#ifdef NAZARA_RENDERER_COMMON
#error This file is not part of the common renderer interface, you must undefine NAZARA_RENDERER_COMMON to use it
#endif

#pragma once

#ifndef NAZARA_OPENGL_HPP
#define NAZARA_OPENGL_HPP

// gl3.h définit WIN32_LEAN_AND_MEAN qui entre en conflit avec la définition de Nazara et doit donc être inclut en premier
#include <GL3/gl3.h>
#include <Nazara/Prerequesites.hpp>
#include <Nazara/Core/String.hpp>

// Il semblerait qu'il ne soit pas conseillé d'inclure gl3.h t glext.h en même temps, mais je ne vois pas oomment gérer les extensions autrement...
#include <GL3/glext.h>
#if defined(NAZARA_PLATFORM_WINDOWS)
	#include <GL3/wglext.h>
#elif defined(NAZARA_PLATFORM_LINUX)
	#include <GL3/glxext.h>
#else
	#error OS not handled
#endif

typedef void (*NzOpenGLFunc)();

class NAZARA_API NzOpenGL
{
	public:
		enum Extension
		{
			AnisotropicFilter,
			DebugOutput,
			FP64,
			FrameBufferObject,
			SeparateShaderObjects,
			Texture3D,
			TextureCompression_s3tc,
			TextureStorage,
			VertexArrayObject,

			Count
		};

		static NzOpenGLFunc GetEntry(const NzString& entryPoint);
		static unsigned int GetVersion();
		static bool Initialize();
		static bool IsSupported(Extension extension);
		static bool IsSupported(const NzString& string);
		static void Uninitialize();
};

NAZARA_API extern PFNGLACTIVETEXTUREPROC			glActiveTexture;
NAZARA_API extern PFNGLATTACHSHADERPROC				glAttachShader;
NAZARA_API extern PFNGLBEGINQUERYPROC				glBeginQuery;
NAZARA_API extern PFNGLBINDATTRIBLOCATIONPROC		glBindAttribLocation;
NAZARA_API extern PFNGLBINDBUFFERPROC				glBindBuffer;
NAZARA_API extern PFNGLBINDFRAMEBUFFERPROC			glBindFramebuffer;
NAZARA_API extern PFNGLBINDRENDERBUFFERPROC			glBindRenderbuffer;
NAZARA_API extern PFNGLBINDTEXTUREPROC				glBindTexture;
NAZARA_API extern PFNGLBINDVERTEXARRAYPROC			glBindVertexArray;
NAZARA_API extern PFNGLBLENDFUNCPROC				glBlendFunc;
NAZARA_API extern PFNGLBUFFERDATAPROC				glBufferData;
NAZARA_API extern PFNGLBUFFERSUBDATAPROC			glBufferSubData;
NAZARA_API extern PFNGLCLEARPROC					glClear;
NAZARA_API extern PFNGLCLEARCOLORPROC				glClearColor;
NAZARA_API extern PFNGLCLEARDEPTHPROC				glClearDepth;
NAZARA_API extern PFNGLCLEARSTENCILPROC				glClearStencil;
NAZARA_API extern PFNGLCREATEPROGRAMPROC			glCreateProgram;
NAZARA_API extern PFNGLCREATESHADERPROC				glCreateShader;
NAZARA_API extern PFNGLCHECKFRAMEBUFFERSTATUSPROC	glCheckFramebufferStatus;
NAZARA_API extern PFNGLCOLORMASKPROC				glColorMask;
NAZARA_API extern PFNGLCULLFACEPROC					glCullFace;
NAZARA_API extern PFNGLCOMPILESHADERPROC			glCompileShader;
NAZARA_API extern PFNGLCOPYTEXSUBIMAGE2DPROC		glCopyTexSubImage2D;
NAZARA_API extern PFNGLDEBUGMESSAGECONTROLARBPROC	glDebugMessageControl;
NAZARA_API extern PFNGLDEBUGMESSAGEINSERTARBPROC	glDebugMessageInsert;
NAZARA_API extern PFNGLDEBUGMESSAGECALLBACKARBPROC	glDebugMessageCallback;
NAZARA_API extern PFNGLDELETEBUFFERSPROC			glDeleteBuffers;
NAZARA_API extern PFNGLDELETEFRAMEBUFFERSPROC		glDeleteFramebuffers;
NAZARA_API extern PFNGLDELETEPROGRAMPROC			glDeleteProgram;
NAZARA_API extern PFNGLDELETEQUERIESPROC			glDeleteQueries;
NAZARA_API extern PFNGLDELETERENDERBUFFERSPROC		glDeleteRenderbuffers;
NAZARA_API extern PFNGLDELETESHADERPROC				glDeleteShader;
NAZARA_API extern PFNGLDELETETEXTURESPROC			glDeleteTextures;
NAZARA_API extern PFNGLDELETEVERTEXARRAYSPROC		glDeleteVertexArrays;
NAZARA_API extern PFNGLDEPTHFUNCPROC				glDepthFunc;
NAZARA_API extern PFNGLDEPTHMASKPROC				glDepthMask;
NAZARA_API extern PFNGLDISABLEPROC 					glDisable;
NAZARA_API extern PFNGLDISABLEVERTEXATTRIBARRAYPROC	glDisableVertexAttribArray;
NAZARA_API extern PFNGLDRAWARRAYSPROC				glDrawArrays;
NAZARA_API extern PFNGLDRAWBUFFERPROC				glDrawBuffer;
NAZARA_API extern PFNGLDRAWBUFFERSPROC				glDrawBuffers;
NAZARA_API extern PFNGLDRAWELEMENTSPROC				glDrawElements;
NAZARA_API extern PFNGLENDQUERYPROC					glEndQuery;
NAZARA_API extern PFNGLFLUSHPROC					glFlush;
NAZARA_API extern PFNGLFRAMEBUFFERRENDERBUFFERPROC	glFramebufferRenderbuffer;
NAZARA_API extern PFNGLFRAMEBUFFERTEXTURE2DPROC		glFramebufferTexture2D;
NAZARA_API extern PFNGLENABLEPROC					glEnable;
NAZARA_API extern PFNGLENABLEVERTEXATTRIBARRAYPROC	glEnableVertexAttribArray;
NAZARA_API extern PFNGLGENERATEMIPMAPPROC			glGenerateMipmap;
NAZARA_API extern PFNGLGENBUFFERSPROC				glGenBuffers;
NAZARA_API extern PFNGLGENFRAMEBUFFERSPROC			glGenFramebuffers;
NAZARA_API extern PFNGLGENQUERIESPROC				glGenQueries;
NAZARA_API extern PFNGLGENRENDERBUFFERSPROC			glGenRenderbuffers;
NAZARA_API extern PFNGLGENTEXTURESPROC				glGenTextures;
NAZARA_API extern PFNGLGENVERTEXARRAYSPROC			glGenVertexArrays;
NAZARA_API extern PFNGLGETBUFFERPARAMETERIVPROC		glGetBufferParameteriv;
NAZARA_API extern PFNGLGETDEBUGMESSAGELOGARBPROC	glGetDebugMessageLog;
NAZARA_API extern PFNGLGETERRORPROC					glGetError;
NAZARA_API extern PFNGLGETINTEGERVPROC				glGetIntegerv;
NAZARA_API extern PFNGLGETPROGRAMIVPROC				glGetProgramiv;
NAZARA_API extern PFNGLGETPROGRAMINFOLOGPROC		glGetProgramInfoLog;
NAZARA_API extern PFNGLGETQUERYIVPROC				glGetQueryiv;
NAZARA_API extern PFNGLGETQUERYOBJECTIVPROC			glGetQueryObjectiv;
NAZARA_API extern PFNGLGETQUERYOBJECTUIVPROC		glGetQueryObjectuiv;
NAZARA_API extern PFNGLGETSHADERINFOLOGPROC			glGetShaderInfoLog;
NAZARA_API extern PFNGLGETSHADERIVPROC				glGetShaderiv;
NAZARA_API extern PFNGLGETSHADERSOURCEPROC			glGetShaderSource;
NAZARA_API extern PFNGLGETSTRINGPROC				glGetString;
NAZARA_API extern PFNGLGETSTRINGIPROC				glGetStringi;
NAZARA_API extern PFNGLGETTEXIMAGEPROC				glGetTexImage;
NAZARA_API extern PFNGLGETTEXLEVELPARAMETERFVPROC	glGetTexLevelParameterfv;
NAZARA_API extern PFNGLGETTEXLEVELPARAMETERIVPROC	glGetTexLevelParameteriv;
NAZARA_API extern PFNGLGETTEXPARAMETERFVPROC		glGetTexParameterfv;
NAZARA_API extern PFNGLGETTEXPARAMETERIVPROC		glGetTexParameteriv;
NAZARA_API extern PFNGLGETUNIFORMLOCATIONPROC		glGetUniformLocation;
NAZARA_API extern PFNGLLINKPROGRAMPROC				glLinkProgram;
NAZARA_API extern PFNGLMAPBUFFERPROC				glMapBuffer;
NAZARA_API extern PFNGLMAPBUFFERRANGEPROC			glMapBufferRange;
NAZARA_API extern PFNGLPIXELSTOREIPROC				glPixelStorei;
NAZARA_API extern PFNGLPOLYGONMODEPROC				glPolygonMode;
NAZARA_API extern PFNGLPROGRAMUNIFORM1DPROC			glProgramUniform1d;
NAZARA_API extern PFNGLPROGRAMUNIFORM1FPROC			glProgramUniform1f;
NAZARA_API extern PFNGLPROGRAMUNIFORM1IPROC			glProgramUniform1i;
NAZARA_API extern PFNGLPROGRAMUNIFORM2DVPROC		glProgramUniform2dv;
NAZARA_API extern PFNGLPROGRAMUNIFORM2FVPROC		glProgramUniform2fv;
NAZARA_API extern PFNGLPROGRAMUNIFORM3DVPROC		glProgramUniform3dv;
NAZARA_API extern PFNGLPROGRAMUNIFORM3FVPROC		glProgramUniform3fv;
NAZARA_API extern PFNGLPROGRAMUNIFORM4DVPROC		glProgramUniform4dv;
NAZARA_API extern PFNGLPROGRAMUNIFORM4FVPROC		glProgramUniform4fv;
NAZARA_API extern PFNGLPROGRAMUNIFORMMATRIX4DVPROC	glProgramUniformMatrix4dv;
NAZARA_API extern PFNGLPROGRAMUNIFORMMATRIX4FVPROC	glProgramUniformMatrix4fv;
NAZARA_API extern PFNGLREADPIXELSPROC				glReadPixels;
NAZARA_API extern PFNGLRENDERBUFFERSTORAGEPROC		glRenderbufferStorage;
NAZARA_API extern PFNGLSCISSORPROC					glScissor;
NAZARA_API extern PFNGLSHADERSOURCEPROC				glShaderSource;
NAZARA_API extern PFNGLSTENCILFUNCPROC				glStencilFunc;
NAZARA_API extern PFNGLSTENCILOPPROC				glStencilOp;
NAZARA_API extern PFNGLTEXIMAGE1DPROC				glTexImage1D;
NAZARA_API extern PFNGLTEXIMAGE2DPROC				glTexImage2D;
NAZARA_API extern PFNGLTEXIMAGE3DPROC				glTexImage3D;
NAZARA_API extern PFNGLTEXPARAMETERFPROC			glTexParameterf;
NAZARA_API extern PFNGLTEXPARAMETERIPROC			glTexParameteri;
NAZARA_API extern PFNGLTEXSTORAGE1DPROC				glTexStorage1D;
NAZARA_API extern PFNGLTEXSTORAGE2DPROC				glTexStorage2D;
NAZARA_API extern PFNGLTEXSTORAGE3DPROC				glTexStorage3D;
NAZARA_API extern PFNGLTEXSUBIMAGE1DPROC			glTexSubImage1D;
NAZARA_API extern PFNGLTEXSUBIMAGE2DPROC			glTexSubImage2D;
NAZARA_API extern PFNGLTEXSUBIMAGE3DPROC			glTexSubImage3D;
NAZARA_API extern PFNGLUNIFORM1DPROC				glUniform1d;
NAZARA_API extern PFNGLUNIFORM1FPROC				glUniform1f;
NAZARA_API extern PFNGLUNIFORM1IPROC				glUniform1i;
NAZARA_API extern PFNGLUNIFORM2DVPROC				glUniform2dv;
NAZARA_API extern PFNGLUNIFORM2FVPROC				glUniform2fv;
NAZARA_API extern PFNGLUNIFORM3DVPROC				glUniform3dv;
NAZARA_API extern PFNGLUNIFORM3FVPROC				glUniform3fv;
NAZARA_API extern PFNGLUNIFORM4DVPROC				glUniform4dv;
NAZARA_API extern PFNGLUNIFORM4FVPROC				glUniform4fv;
NAZARA_API extern PFNGLUNIFORMMATRIX4DVPROC			glUniformMatrix4dv;
NAZARA_API extern PFNGLUNIFORMMATRIX4FVPROC			glUniformMatrix4fv;
NAZARA_API extern PFNGLUNMAPBUFFERPROC				glUnmapBuffer;
NAZARA_API extern PFNGLUSEPROGRAMPROC				glUseProgram;
NAZARA_API extern PFNGLVERTEXATTRIB4FPROC			glVertexAttrib4f;
NAZARA_API extern PFNGLVERTEXATTRIBPOINTERPROC		glVertexAttribPointer;
NAZARA_API extern PFNGLVIEWPORTPROC					glViewport;
#if defined(NAZARA_PLATFORM_WINDOWS)
NAZARA_API extern PFNWGLCHOOSEPIXELFORMATARBPROC	wglChoosePixelFormat;
NAZARA_API extern PFNWGLCREATECONTEXTATTRIBSARBPROC	wglCreateContextAttribs;
NAZARA_API extern PFNWGLGETEXTENSIONSSTRINGARBPROC	wglGetExtensionsStringARB;
NAZARA_API extern PFNWGLGETEXTENSIONSSTRINGEXTPROC	wglGetExtensionsStringEXT;
NAZARA_API extern PFNWGLSWAPINTERVALEXTPROC			wglSwapInterval;
#elif defined(NAZARA_PLATFORM_LINUX)
NAZARA_API extern PFNGLXCREATECONTEXTATTRIBSARBPROC	glXCreateContextAttribs;
NAZARA_API extern PFNGLXSWAPINTERVALSGIPROC			glXSwapInterval;
#endif

#endif // NAZARA_OPENGL_HPP