#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;

// OpenGL 2.0
extern PFNGLBLENDEQUATIONSEPARATEPROC                           glBlendEquationSeparate;
extern PFNGLDRAWBUFFERSPROC                                     glDrawBuffers;
extern PFNGLSTENCILOPSEPARATEPROC                               glStencilOpSeparate;
extern PFNGLSTENCILFUNCSEPARATEPROC                             glStencilFuncSeparate;
extern PFNGLSTENCILMASKSEPARATEPROC                             glStencilMaskSeparate;
extern PFNGLATTACHSHADERPROC                                    glAttachShader;
extern PFNGLBINDATTRIBLOCATIONPROC                              glBindAttribLocation;
extern PFNGLCOMPILESHADERPROC                                   glCompileShader;
extern PFNGLCREATEPROGRAMPROC                                   glCreateProgram;
extern PFNGLCREATESHADERPROC                                    glCreateShader;
extern PFNGLDELETEPROGRAMPROC                                   glDeleteProgram;
extern PFNGLDELETESHADERPROC                                    glDeleteShader;
extern PFNGLDETACHSHADERPROC                                    glDetachShader;
extern PFNGLDISABLEVERTEXATTRIBARRAYPROC                        glDisableVertexAttribArray;
extern PFNGLENABLEVERTEXATTRIBARRAYPROC                         glEnableVertexAttribArray;
extern PFNGLGETACTIVEATTRIBPROC                                 glGetActiveAttrib;
extern PFNGLGETACTIVEUNIFORMPROC                                glGetActiveUniform;
extern PFNGLGETATTACHEDSHADERSPROC                              glGetAttachedShaders;
extern PFNGLGETATTRIBLOCATIONPROC                               glGetAttribLocation;
extern PFNGLGETPROGRAMIVPROC                                    glGetProgramiv;
extern PFNGLGETPROGRAMINFOLOGPROC                               glGetProgramInfoLog;
extern PFNGLGETSHADERIVPROC                                     glGetShaderiv;
extern PFNGLGETSHADERINFOLOGPROC                                glGetShaderInfoLog;
extern PFNGLGETSHADERSOURCEPROC                                 glGetShaderSource;
extern PFNGLGETUNIFORMLOCATIONPROC                              glGetUniformLocation;
extern PFNGLGETUNIFORMFVPROC                                    glGetUniformfv;
extern PFNGLGETUNIFORMIVPROC                                    glGetUniformiv;
extern PFNGLGETVERTEXATTRIBDVPROC                               glGetVertexAttribdv;
extern PFNGLGETVERTEXATTRIBFVPROC                               glGetVertexAttribfv;
extern PFNGLGETVERTEXATTRIBIVPROC                               glGetVertexAttribiv;
extern PFNGLGETVERTEXATTRIBPOINTERVPROC                         glGetVertexAttribPointerv;
extern PFNGLISPROGRAMPROC                                       glIsProgram;
extern PFNGLISSHADERPROC                                        glIsShader;
extern PFNGLLINKPROGRAMPROC                                     glLinkProgram;
extern PFNGLSHADERSOURCEPROC                                    glShaderSource;
extern PFNGLUSEPROGRAMPROC                                      glUseProgram;
extern PFNGLUNIFORM1FPROC                                       glUniform1f;
extern PFNGLUNIFORM2FPROC                                       glUniform2f;
extern PFNGLUNIFORM3FPROC                                       glUniform3f;
extern PFNGLUNIFORM4FPROC                                       glUniform4f;
extern PFNGLUNIFORM1IPROC                                       glUniform1i;
extern PFNGLUNIFORM2IPROC                                       glUniform2i;
extern PFNGLUNIFORM3IPROC                                       glUniform3i;
extern PFNGLUNIFORM4IPROC                                       glUniform4i;
extern PFNGLUNIFORM1FVPROC                                      glUniform1fv;
extern PFNGLUNIFORM2FVPROC                                      glUniform2fv;
extern PFNGLUNIFORM3FVPROC                                      glUniform3fv;
extern PFNGLUNIFORM4FVPROC                                      glUniform4fv;
extern PFNGLUNIFORM1IVPROC                                      glUniform1iv;
extern PFNGLUNIFORM2IVPROC                                      glUniform2iv;
extern PFNGLUNIFORM3IVPROC                                      glUniform3iv;
extern PFNGLUNIFORM4IVPROC                                      glUniform4iv;
extern PFNGLUNIFORMMATRIX2FVPROC                                glUniformMatrix2fv;
extern PFNGLUNIFORMMATRIX3FVPROC                                glUniformMatrix3fv;
extern PFNGLUNIFORMMATRIX4FVPROC                                glUniformMatrix4fv;
extern PFNGLVALIDATEPROGRAMPROC                                 glValidateProgram;
extern PFNGLVERTEXATTRIB1DPROC                                  glVertexAttrib1d;
extern PFNGLVERTEXATTRIB1DVPROC                                 glVertexAttrib1dv;
extern PFNGLVERTEXATTRIB1FPROC                                  glVertexAttrib1f;
extern PFNGLVERTEXATTRIB1FVPROC                                 glVertexAttrib1fv;
extern PFNGLVERTEXATTRIB1SPROC                                  glVertexAttrib1s;
extern PFNGLVERTEXATTRIB1SVPROC                                 glVertexAttrib1sv;
extern PFNGLVERTEXATTRIB2DPROC                                  glVertexAttrib2d;
extern PFNGLVERTEXATTRIB2DVPROC                                 glVertexAttrib2dv;
extern PFNGLVERTEXATTRIB2FPROC                                  glVertexAttrib2f;
extern PFNGLVERTEXATTRIB2FVPROC                                 glVertexAttrib2fv;
extern PFNGLVERTEXATTRIB2SPROC                                  glVertexAttrib2s;
extern PFNGLVERTEXATTRIB2SVPROC                                 glVertexAttrib2sv;
extern PFNGLVERTEXATTRIB3DPROC                                  glVertexAttrib3d;
extern PFNGLVERTEXATTRIB3DVPROC                                 glVertexAttrib3dv;
extern PFNGLVERTEXATTRIB3FPROC                                  glVertexAttrib3f;
extern PFNGLVERTEXATTRIB3FVPROC                                 glVertexAttrib3fv;
extern PFNGLVERTEXATTRIB3SPROC                                  glVertexAttrib3s;
extern PFNGLVERTEXATTRIB3SVPROC                                 glVertexAttrib3sv;
extern PFNGLVERTEXATTRIB4NBVPROC                                glVertexAttrib4Nbv;
extern PFNGLVERTEXATTRIB4NIVPROC                                glVertexAttrib4Niv;
extern PFNGLVERTEXATTRIB4NSVPROC                                glVertexAttrib4Nsv;
extern PFNGLVERTEXATTRIB4NUBPROC                                glVertexAttrib4Nub;
extern PFNGLVERTEXATTRIB4NUBVPROC                               glVertexAttrib4Nubv;
extern PFNGLVERTEXATTRIB4NUIVPROC                               glVertexAttrib4Nuiv;
extern PFNGLVERTEXATTRIB4NUSVPROC                               glVertexAttrib4Nusv;
extern PFNGLVERTEXATTRIB4BVPROC                                 glVertexAttrib4bv;
extern PFNGLVERTEXATTRIB4DPROC                                  glVertexAttrib4d;
extern PFNGLVERTEXATTRIB4DVPROC                                 glVertexAttrib4dv;
extern PFNGLVERTEXATTRIB4FPROC                                  glVertexAttrib4f;
extern PFNGLVERTEXATTRIB4FVPROC                                 glVertexAttrib4fv;
extern PFNGLVERTEXATTRIB4IVPROC                                 glVertexAttrib4iv;
extern PFNGLVERTEXATTRIB4SPROC                                  glVertexAttrib4s;
extern PFNGLVERTEXATTRIB4SVPROC                                 glVertexAttrib4sv;
extern PFNGLVERTEXATTRIB4UBVPROC                                glVertexAttrib4ubv;
extern PFNGLVERTEXATTRIB4UIVPROC                                glVertexAttrib4uiv;
extern PFNGLVERTEXATTRIB4USVPROC                                glVertexAttrib4usv;
extern PFNGLVERTEXATTRIBPOINTERPROC                             glVertexAttribPointer;

// 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