arb_vertex_program_extension.cpp

it is a visual c++ file

//////////////////////////////////////////////////////////////////////////////////////////
//	ARB_vertex_program_extension.cpp
//	ARB_vertex_program extension setup
//	Downloaded from: www.paulsprojects.net
//	Created:	2nd October 2002
//
//	Copyright (c) 2006, Paul Baker
//	Distributed under the New BSD Licence. (See accompanying file License.txt or copy at
//	http://www.paulsprojects.net/NewBSDLicense.txt)
//////////////////////////////////////////////////////////////////////////////////////////	
#include <windows.h>
#include <GL\gl.h>
#include <GL\glext.h>
#include <GL\wglext.h>
#include "../LOG.h"
#include "ARB_vertex_program_extension.h"

extern LOG errorLog;

bool ARB_vertex_program_supported=false;

bool SetUpARB_vertex_program()
{
	//Check for support
	char * extensionString=(char *)glGetString(GL_EXTENSIONS);
	char * extensionName="GL_ARB_vertex_program";

	char * endOfString;									//store pointer to end of string
	unsigned int distanceToSpace;						//distance to next space

	endOfString=extensionString+strlen(extensionString);

	//loop through string
	while(extensionString<endOfString)
	{
		//find distance to next space
		distanceToSpace=strcspn(extensionString, " ");

		//see if we have found extensionName
		if((strlen(extensionName)==distanceToSpace) &&
			(strncmp(extensionName, extensionString, distanceToSpace)==0))
		{
			ARB_vertex_program_supported=true;
		}

		//if not, move on
		extensionString+=distanceToSpace+1;
	}

	if(!ARB_vertex_program_supported)
	{
		errorLog.OutputError("ARB_vertex_program unsupported!");
		return false;
	}

	errorLog.OutputSuccess("ARB_vertex_program supported!");

	//get function pointers
	glVertexAttrib1sARB					=	(PFNGLVERTEXATTRIB1SARBPROC)
											wglGetProcAddress("glVertexAttrib1sARB");
	glVertexAttrib1fARB					=	(PFNGLVERTEXATTRIB1FARBPROC)
											wglGetProcAddress("glVertexAttrib1fARB");
	glVertexAttrib1dARB					=	(PFNGLVERTEXATTRIB1DARBPROC)
											wglGetProcAddress("glVertexAttrib1dARB");
	glVertexAttrib2sARB					=	(PFNGLVERTEXATTRIB2SARBPROC)
											wglGetProcAddress("glVertexAttrib2sARB");
	glVertexAttrib2fARB					=	(PFNGLVERTEXATTRIB2FARBPROC)
											wglGetProcAddress("glVertexAttrib2fARB");
	glVertexAttrib2dARB					=	(PFNGLVERTEXATTRIB2DARBPROC)
											wglGetProcAddress("glVertexAttrib2dARB");
	glVertexAttrib3sARB					=	(PFNGLVERTEXATTRIB3SARBPROC)
											wglGetProcAddress("glVertexAttrib3sARB");
	glVertexAttrib3fARB					=	(PFNGLVERTEXATTRIB3FARBPROC)
											wglGetProcAddress("glVertexAttrib3fARB");
	glVertexAttrib3dARB					=	(PFNGLVERTEXATTRIB3DARBPROC)
											wglGetProcAddress("glVertexAttrib3dARB");
	glVertexAttrib4sARB					=	(PFNGLVERTEXATTRIB4SARBPROC)
											wglGetProcAddress("glVertexAttrib4sARB");
	glVertexAttrib4fARB					=	(PFNGLVERTEXATTRIB4FARBPROC)
											wglGetProcAddress("glVertexAttrib4fARB");
	glVertexAttrib4dARB					=	(PFNGLVERTEXATTRIB4DARBPROC)
											wglGetProcAddress("glVertexAttrib4dARB");
	glVertexAttrib4NubARB				=	(PFNGLVERTEXATTRIB4NUBARBPROC)
											wglGetProcAddress("glVertexAttrib4NubARB");

	glVertexAttrib1svARB				=	(PFNGLVERTEXATTRIB1SVARBPROC)
											wglGetProcAddress("glVertexAttrib1svARB");
	glVertexAttrib1fvARB				=	(PFNGLVERTEXATTRIB1FVARBPROC)
											wglGetProcAddress("glVertexAttrib1fvARB");
	glVertexAttrib1dvARB				=	(PFNGLVERTEXATTRIB1DVARBPROC)
											wglGetProcAddress("glVertexAttrib1dvARB");
	glVertexAttrib2svARB				=	(PFNGLVERTEXATTRIB2SVARBPROC)
											wglGetProcAddress("glVertexAttrib2svARB");
	glVertexAttrib2fvARB				=	(PFNGLVERTEXATTRIB2FVARBPROC)
											wglGetProcAddress("glVertexAttrib2fvARB");
	glVertexAttrib2dvARB				=	(PFNGLVERTEXATTRIB2DVARBPROC)
											wglGetProcAddress("glVertexAttrib2dvARB");
	glVertexAttrib3svARB				=	(PFNGLVERTEXATTRIB3SVARBPROC)
											wglGetProcAddress("glVertexAttrib3svARB");
	glVertexAttrib3fvARB				=	(PFNGLVERTEXATTRIB3FVARBPROC)
											wglGetProcAddress("glVertexAttrib3fvARB");
	glVertexAttrib3dvARB				=	(PFNGLVERTEXATTRIB3DVARBPROC)
											wglGetProcAddress("glVertexAttrib3dvARB");


	glVertexAttrib4bvARB				=	(PFNGLVERTEXATTRIB4BVARBPROC)
											wglGetProcAddress("glVertexAttrib4bvARB");
	glVertexAttrib4svARB				=	(PFNGLVERTEXATTRIB4SVARBPROC)
											wglGetProcAddress("glVertexAttrib4svARB");
	glVertexAttrib4ivARB				=	(PFNGLVERTEXATTRIB4IVARBPROC)
											wglGetProcAddress("glVertexAttrib4ivARB");
	glVertexAttrib4ubvARB				=	(PFNGLVERTEXATTRIB4UBVARBPROC)
											wglGetProcAddress("glVertexAttrib4ubvARB");
	glVertexAttrib4usvARB				=	(PFNGLVERTEXATTRIB4USVARBPROC)
											wglGetProcAddress("glVertexAttrib4usvARB");
	glVertexAttrib4uivARB				=	(PFNGLVERTEXATTRIB4UIVARBPROC)
											wglGetProcAddress("glVertexAttrib4uivARB");
	glVertexAttrib4fvARB				=	(PFNGLVERTEXATTRIB4FVARBPROC)
											wglGetProcAddress("glVertexAttrib4fvARB");
	glVertexAttrib4dvARB				=	(PFNGLVERTEXATTRIB4DVARBPROC)
											wglGetProcAddress("glVertexAttrib4dvARB");
	glVertexAttrib4NbvARB				=	(PFNGLVERTEXATTRIB4NBVARBPROC)
											wglGetProcAddress("glVertexAttrib4NbvARB");
	glVertexAttrib4NsvARB				=	(PFNGLVERTEXATTRIB4NSVARBPROC)
											wglGetProcAddress("glVertexAttrib4NsvARB");
	glVertexAttrib4NivARB				=	(PFNGLVERTEXATTRIB4NIVARBPROC)
											wglGetProcAddress("glVertexAttrib4NivARB");
	glVertexAttrib4NubvARB				=	(PFNGLVERTEXATTRIB4NUBVARBPROC)
											wglGetProcAddress("glVertexAttrib4NubvARB");
	glVertexAttrib4NusvARB				=	(PFNGLVERTEXATTRIB4NUSVARBPROC)
											wglGetProcAddress("glVertexAttrib4NusvARB");
	glVertexAttrib4NuivARB				=	(PFNGLVERTEXATTRIB4NUIVARBPROC)
											wglGetProcAddress("glVertexAttrib4NuivARB");

	glVertexAttribPointerARB			=	(PFNGLVERTEXATTRIBPOINTERARBPROC)
											wglGetProcAddress("glVertexAttribPointerARB");

	glEnableVertexAttribArrayARB		=	(PFNGLENABLEVERTEXATTRIBARRAYARBPROC)
											wglGetProcAddress("glEnableVertexAttribArrayARB");
	glDisableVertexAttribArrayARB		=	(PFNGLDISABLEVERTEXATTRIBARRAYARBPROC)
											wglGetProcAddress("glDisableVertexAttribArrayARB");

	glProgramStringARB					=	(PFNGLPROGRAMSTRINGARBPROC)
											wglGetProcAddress("glProgramStringARB");

	glBindProgramARB					=	(PFNGLBINDPROGRAMARBPROC)
											wglGetProcAddress("glBindProgramARB");
	glDeleteProgramsARB					=	(PFNGLDELETEPROGRAMSARBPROC)
											wglGetProcAddress("glDeleteProgramsARB");
	glGenProgramsARB					=	(PFNGLGENPROGRAMSARBPROC)
											wglGetProcAddress("glGenProgramsARB");

	glProgramEnvParameter4dARB			=	(PFNGLPROGRAMENVPARAMETER4DARBPROC)
											wglGetProcAddress("glProgramEnvParameter4dARB");
	glProgramEnvParameter4dvARB			=	(PFNGLPROGRAMENVPARAMETER4DVARBPROC)
											wglGetProcAddress("glProgramEnvParameter4dvARB");
	glProgramEnvParameter4fARB			=	(PFNGLPROGRAMENVPARAMETER4FARBPROC)
											wglGetProcAddress("glProgramEnvParameter4fARB");
	glProgramEnvParameter4fvARB			=	(PFNGLPROGRAMENVPARAMETER4FVARBPROC)
											wglGetProcAddress("glProgramEnvParameter4fvARB");

	glProgramLocalParameter4dARB		=	(PFNGLPROGRAMLOCALPARAMETER4DARBPROC)
											wglGetProcAddress("glProgramLocalParameter4dARB");
	glProgramLocalParameter4dvARB		=	(PFNGLPROGRAMLOCALPARAMETER4DVARBPROC)
											wglGetProcAddress("glProgramLocalParameter4dvARB");
	glProgramLocalParameter4fARB		=	(PFNGLPROGRAMLOCALPARAMETER4FARBPROC)
											wglGetProcAddress("glProgramLocalParameter4fARB");
	glProgramLocalParameter4fvARB		=	(PFNGLPROGRAMLOCALPARAMETER4FVARBPROC)
											wglGetProcAddress("glProgramLocalParameter4fvARB");
	
	glGetProgramEnvParameterdvARB		=	(PFNGLGETPROGRAMENVPARAMETERDVARBPROC)
											wglGetProcAddress("glGetProgramEnvParameterdvARB");
	glGetProgramEnvParameterfvARB		=	(PFNGLGETPROGRAMENVPARAMETERFVARBPROC)
											wglGetProcAddress("glGetProgramEnvParameterfvARB");

	glGetProgramLocalParameterdvARB		=	(PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC)
											wglGetProcAddress("glGetProgramLocalParameterdvARB");
	glGetProgramLocalParameterfvARB		=	(PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC)
											wglGetProcAddress("glGetProgramLocalParameterfvARB");


	glGetProgramivARB					=	(PFNGLGETPROGRAMIVARBPROC)
											wglGetProcAddress("glGetProgramivARB");

	glGetProgramStringARB				=	(PFNGLGETPROGRAMSTRINGARBPROC)
											wglGetProcAddress("glGetProgramStringARB");

	glGetVertexAttribdvARB				=	(PFNGLGETVERTEXATTRIBDVARBPROC)
											wglGetProcAddress("glGetVertexAttribdvARB");
	glGetVertexAttribfvARB				=	(PFNGLGETVERTEXATTRIBFVARBPROC)
											wglGetProcAddress("glGetVertexAttribfvARB");
	glGetVertexAttribivARB				=	(PFNGLGETVERTEXATTRIBIVARBPROC)
											wglGetProcAddress("glGetVertexAttribivARB");


	glGetVertexAttribPointervARB		=	(PFNGLGETVERTEXATTRIBPOINTERVARBPROC)
											wglGetProcAddress("glGetVertexAttribPointervARB");

	glIsProgramARB						=	(PFNGLISPROGRAMARBPROC)
											wglGetProcAddress("glIsProgramARB");

	return true;
}

//Function pointers
PFNGLVERTEXATTRIB1SARBPROC					glVertexAttrib1sARB				=NULL;
PFNGLVERTEXATTRIB1FARBPROC					glVertexAttrib1fARB				=NULL;
PFNGLVERTEXATTRIB1DARBPROC					glVertexAttrib1dARB				=NULL;
PFNGLVERTEXATTRIB2SARBPROC					glVertexAttrib2sARB				=NULL;
PFNGLVERTEXATTRIB2FARBPROC					glVertexAttrib2fARB				=NULL;
PFNGLVERTEXATTRIB2DARBPROC					glVertexAttrib2dARB				=NULL;
PFNGLVERTEXATTRIB3SARBPROC					glVertexAttrib3sARB				=NULL;
PFNGLVERTEXATTRIB3FARBPROC					glVertexAttrib3fARB				=NULL;
PFNGLVERTEXATTRIB3DARBPROC					glVertexAttrib3dARB				=NULL;
PFNGLVERTEXATTRIB4SARBPROC					glVertexAttrib4sARB				=NULL;
PFNGLVERTEXATTRIB4FARBPROC					glVertexAttrib4fARB				=NULL;
PFNGLVERTEXATTRIB4DARBPROC					glVertexAttrib4dARB				=NULL;
PFNGLVERTEXATTRIB4NUBARBPROC				glVertexAttrib4NubARB			=NULL;

PFNGLVERTEXATTRIB1SVARBPROC					glVertexAttrib1svARB			=NULL;
PFNGLVERTEXATTRIB1FVARBPROC					glVertexAttrib1fvARB			=NULL;
PFNGLVERTEXATTRIB1DVARBPROC					glVertexAttrib1dvARB			=NULL;
PFNGLVERTEXATTRIB2SVARBPROC					glVertexAttrib2svARB			=NULL;
PFNGLVERTEXATTRIB2FVARBPROC					glVertexAttrib2fvARB			=NULL;
PFNGLVERTEXATTRIB2DVARBPROC					glVertexAttrib2dvARB			=NULL;
PFNGLVERTEXATTRIB3SVARBPROC					glVertexAttrib3svARB			=NULL;
PFNGLVERTEXATTRIB3FVARBPROC					glVertexAttrib3fvARB			=NULL;
PFNGLVERTEXATTRIB3DVARBPROC					glVertexAttrib3dvARB			=NULL;

PFNGLVERTEXATTRIB4BVARBPROC					glVertexAttrib4bvARB			=NULL;
PFNGLVERTEXATTRIB4SVARBPROC					glVertexAttrib4svARB			=NULL;
PFNGLVERTEXATTRIB4IVARBPROC					glVertexAttrib4ivARB			=NULL;
PFNGLVERTEXATTRIB4UBVARBPROC				glVertexAttrib4ubvARB			=NULL;
PFNGLVERTEXATTRIB4USVARBPROC				glVertexAttrib4usvARB			=NULL;
PFNGLVERTEXATTRIB4UIVARBPROC				glVertexAttrib4uivARB			=NULL;
PFNGLVERTEXATTRIB4FVARBPROC					glVertexAttrib4fvARB			=NULL;
PFNGLVERTEXATTRIB4DVARBPROC					glVertexAttrib4dvARB			=NULL;
PFNGLVERTEXATTRIB4NBVARBPROC				glVertexAttrib4NbvARB			=NULL;
PFNGLVERTEXATTRIB4NSVARBPROC				glVertexAttrib4NsvARB			=NULL;
PFNGLVERTEXATTRIB4NIVARBPROC				glVertexAttrib4NivARB			=NULL;
PFNGLVERTEXATTRIB4NUBVARBPROC				glVertexAttrib4NubvARB			=NULL;
PFNGLVERTEXATTRIB4NUSVARBPROC				glVertexAttrib4NusvARB			=NULL;
PFNGLVERTEXATTRIB4NUIVARBPROC				glVertexAttrib4NuivARB			=NULL;

PFNGLVERTEXATTRIBPOINTERARBPROC				glVertexAttribPointerARB		=NULL;

PFNGLENABLEVERTEXATTRIBARRAYARBPROC			glEnableVertexAttribArrayARB	=NULL;
PFNGLDISABLEVERTEXATTRIBARRAYARBPROC		glDisableVertexAttribArrayARB	=NULL;

PFNGLPROGRAMSTRINGARBPROC					glProgramStringARB				=NULL;

PFNGLBINDPROGRAMARBPROC						glBindProgramARB				=NULL;
PFNGLDELETEPROGRAMSARBPROC					glDeleteProgramsARB				=NULL;
PFNGLGENPROGRAMSARBPROC						glGenProgramsARB				=NULL;

PFNGLPROGRAMENVPARAMETER4DARBPROC			glProgramEnvParameter4dARB		=NULL;
PFNGLPROGRAMENVPARAMETER4DVARBPROC			glProgramEnvParameter4dvARB		=NULL;
PFNGLPROGRAMENVPARAMETER4FARBPROC			glProgramEnvParameter4fARB		=NULL;
PFNGLPROGRAMENVPARAMETER4FVARBPROC			glProgramEnvParameter4fvARB		=NULL;

PFNGLPROGRAMLOCALPARAMETER4DARBPROC			glProgramLocalParameter4dARB	=NULL;
PFNGLPROGRAMLOCALPARAMETER4DVARBPROC		glProgramLocalParameter4dvARB	=NULL;
PFNGLPROGRAMLOCALPARAMETER4FARBPROC			glProgramLocalParameter4fARB	=NULL;
PFNGLPROGRAMLOCALPARAMETER4FVARBPROC		glProgramLocalParameter4fvARB	=NULL;

PFNGLGETPROGRAMENVPARAMETERDVARBPROC		glGetProgramEnvParameterdvARB	=NULL;
PFNGLGETPROGRAMENVPARAMETERFVARBPROC		glGetProgramEnvParameterfvARB	=NULL;

PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC		glGetProgramLocalParameterdvARB	=NULL;
PFNGLGETPROGRAMLOCALPARAMETERFVARBPROC		glGetProgramLocalParameterfvARB	=NULL;

PFNGLGETPROGRAMIVARBPROC					glGetProgramivARB				=NULL;

PFNGLGETPROGRAMSTRINGARBPROC				glGetProgramStringARB			=NULL;

PFNGLGETVERTEXATTRIBDVARBPROC				glGetVertexAttribdvARB			=NULL;
PFNGLGETVERTEXATTRIBFVARBPROC				glGetVertexAttribfvARB			=NULL;
PFNGLGETVERTEXATTRIBIVARBPROC				glGetVertexAttribivARB			=NULL;

PFNGLGETVERTEXATTRIBPOINTERVARBPROC			glGetVertexAttribPointervARB	=NULL;

PFNGLISPROGRAMARBPROC						glIsProgramARB					=NULL;