#ifndef GL_SHARED_H
#define GL_SHARED_H

#define WIN32_LEAN_AND_MEAN
#include <Windows.h>

#include <gl/gl.h>
#include <gl/glext.h>

void GL_Load();
void GL_SwapBuffers(int inverval);

void GL_CheckError();
void GL_CheckErrorEx(const char* filename, int line);
void GL_CheckErrorFunction(const char* expression, const char* filename, int line);

//void GL_SetTexture( int slot, uint texture );

#define GL_CHECK_ERROR() \
	GL_CheckErrorEx(__FILE__, __LINE__)

#define GL_CHECK_FUNC_ERROR(expr) \
	expr; \
	GL_CheckErrorFunction(#expr, __FILE__, __LINE__)

// Extensions
extern bool g_EXTFramebufferSupport;

// OpenGL 1.3 Functional
extern PFNGLACTIVETEXTUREPROC                  glActiveTexture;
extern PFNGLSAMPLECOVERAGEPROC                 glSampleCoverage;
extern PFNGLCOMPRESSEDTEXIMAGE3DPROC           glCompressedTexImage3D;
extern PFNGLCOMPRESSEDTEXIMAGE2DPROC           glCompressedTexImage2D;
extern PFNGLCOMPRESSEDTEXIMAGE1DPROC           glCompressedTexImage1D;
extern PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC        glCompressedTexSubImage3D;
extern PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC        glCompressedTexSubImage2D;
extern PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC        glCompressedTexSubImage1D;
extern PFNGLGETCOMPRESSEDTEXIMAGEPROC          glGetCompressedTexImage;
extern PFNGLCLIENTACTIVETEXTUREPROC            glClientActiveTexture;
extern PFNGLMULTITEXCOORD1DPROC                glMultiTexCoord1d;
extern PFNGLMULTITEXCOORD1DVPROC               glMultiTexCoord1dv;
extern PFNGLMULTITEXCOORD1FPROC                glMultiTexCoord1f;
extern PFNGLMULTITEXCOORD1FVPROC               glMultiTexCoord1fv;
extern PFNGLMULTITEXCOORD1IPROC                glMultiTexCoord1i;
extern PFNGLMULTITEXCOORD1IVPROC               glMultiTexCoord1iv;
extern PFNGLMULTITEXCOORD1SPROC                glMultiTexCoord1s;
extern PFNGLMULTITEXCOORD1SVPROC               glMultiTexCoord1sv;
extern PFNGLMULTITEXCOORD2DPROC                glMultiTexCoord2d;
extern PFNGLMULTITEXCOORD2DVPROC               glMultiTexCoord2dv;
extern PFNGLMULTITEXCOORD2FPROC                glMultiTexCoord2f;
extern PFNGLMULTITEXCOORD2FVPROC               glMultiTexCoord2fv;
extern PFNGLMULTITEXCOORD2IPROC                glMultiTexCoord2i;
extern PFNGLMULTITEXCOORD2IVPROC               glMultiTexCoord2iv;
extern PFNGLMULTITEXCOORD2SPROC                glMultiTexCoord2s;
extern PFNGLMULTITEXCOORD2SVPROC               glMultiTexCoord2sv;
extern PFNGLMULTITEXCOORD3DPROC                glMultiTexCoord3d;
extern PFNGLMULTITEXCOORD3DVPROC               glMultiTexCoord3dv;
extern PFNGLMULTITEXCOORD3FPROC                glMultiTexCoord3f;
extern PFNGLMULTITEXCOORD3FVPROC               glMultiTexCoord3fv;
extern PFNGLMULTITEXCOORD3IPROC                glMultiTexCoord3i;
extern PFNGLMULTITEXCOORD3IVPROC               glMultiTexCoord3iv;
extern PFNGLMULTITEXCOORD3SPROC                glMultiTexCoord3s;
extern PFNGLMULTITEXCOORD3SVPROC               glMultiTexCoord3sv;
extern PFNGLMULTITEXCOORD4DPROC                glMultiTexCoord4d;
extern PFNGLMULTITEXCOORD4DVPROC               glMultiTexCoord4dv;
extern PFNGLMULTITEXCOORD4FPROC                glMultiTexCoord4f;
extern PFNGLMULTITEXCOORD4FVPROC               glMultiTexCoord4fv;
extern PFNGLMULTITEXCOORD4IPROC                glMultiTexCoord4i;
extern PFNGLMULTITEXCOORD4IVPROC               glMultiTexCoord4iv;
extern PFNGLMULTITEXCOORD4SPROC                glMultiTexCoord4s;
extern PFNGLMULTITEXCOORD4SVPROC               glMultiTexCoord4sv;
extern PFNGLLOADTRANSPOSEMATRIXFPROC           glLoadTransposeMatrixf;
extern PFNGLLOADTRANSPOSEMATRIXDPROC           glLoadTransposeMatrixd;
extern PFNGLMULTTRANSPOSEMATRIXFPROC           glMultTransposeMatrixf;
extern PFNGLMULTTRANSPOSEMATRIXDPROC           glMultTransposeMatrixd;

// OpenGL 1.5 Functional
extern PFNGLGENQUERIESPROC glGenQueries;
extern PFNGLDELETEQUERIESPROC glDeleteQueries;
extern PFNGLISQUERYPROC glIsQuery;
extern PFNGLBEGINQUERYPROC glBeginQuery;
extern PFNGLENDQUERYPROC glEndQuery;
extern PFNGLGETQUERYIVPROC glGetQueryiv;
extern PFNGLGETQUERYOBJECTIVPROC glGetQueryObjectiv;
extern PFNGLGETQUERYOBJECTUIVPROC glGetQueryObjectuiv;
extern PFNGLBINDBUFFERPROC glBindBuffer;
extern PFNGLDELETEBUFFERSPROC glDeleteBuffers;
extern PFNGLGENBUFFERSPROC glGenBuffers;
extern PFNGLISBUFFERPROC glIsBuffer;
extern PFNGLBUFFERDATAPROC glBufferData;
extern PFNGLBUFFERSUBDATAPROC glBufferSubData;
extern PFNGLGETBUFFERSUBDATAPROC glGetBufferSubData;
extern PFNGLMAPBUFFERPROC glMapBuffer;
extern PFNGLUNMAPBUFFERPROC glUnmapBuffer;
extern PFNGLGETBUFFERPARAMETERIVPROC glGetBufferParameteriv;
extern PFNGLGETBUFFERPOINTERVPROC glGetBufferPointerv;

// GL_EXT_framebuffer_object
extern PFNGLISRENDERBUFFEREXTPROC                         	glIsRenderbufferEXT;
extern PFNGLBINDRENDERBUFFEREXTPROC                       	glBindRenderbufferEXT;
extern PFNGLDELETERENDERBUFFERSEXTPROC                    	glDeleteRenderbuffersEXT;
extern PFNGLGENRENDERBUFFERSEXTPROC                       	glGenRenderbuffersEXT;
extern PFNGLRENDERBUFFERSTORAGEEXTPROC                    	glRenderbufferStorageEXT;
extern PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC             	glGetRenderbufferParameterivEXT;
extern PFNGLISFRAMEBUFFEREXTPROC                          	glIsFramebufferEXT;
extern PFNGLBINDFRAMEBUFFEREXTPROC                        	glBindFramebufferEXT;
extern PFNGLDELETEFRAMEBUFFERSEXTPROC                     	glDeleteFramebuffersEXT;
extern PFNGLGENFRAMEBUFFERSEXTPROC                        	glGenFramebuffersEXT;
extern PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC                 	glCheckFramebufferStatusEXT;
extern PFNGLFRAMEBUFFERTEXTURE1DEXTPROC                   	glFramebufferTexture1DEXT;
extern PFNGLFRAMEBUFFERTEXTURE2DEXTPROC                   	glFramebufferTexture2DEXT;
extern PFNGLFRAMEBUFFERTEXTURE3DEXTPROC                   	glFramebufferTexture3DEXT;
extern PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC                	glFramebufferRenderbufferEXT;
extern PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC    	glGetFramebufferAttachmentParameterivEXT;
extern PFNGLGENERATEMIPMAPEXTPROC                         	glGenerateMipmapEXT;

#endif // !GL_SHARED_H