#include ".\cgprogram.h"

CgProgram::CgProgram(void)	
{
	m_FragmentProgram=NULL;
	m_VertexProgram=NULL;
}

CgProgram::~CgProgram(void)
{
}

void CgProgram::InitPrograms()
{
	m_Context=cgCreateContext();
	m_VertexProfile=cgGLGetLatestProfile(CG_GL_VERTEX);
	cgGLSetOptimalOptions(m_VertexProfile);
	m_FragmentProfile=cgGLGetLatestProfile(CG_GL_FRAGMENT);
	cgGLSetOptimalOptions(m_FragmentProfile);

	m_VertexProgram=new CGprogram;
	*m_VertexProgram=cgCreateProgramFromFile(m_Context,CG_SOURCE,m_VertexProgramFilename,m_VertexProfile,m_VertexProgramEntry,0);
	cgGLLoadProgram(*m_VertexProgram);
	fprintf(stderr, "Building CgProgram: %s %s \n", m_VertexProgramFilename,m_VertexProgramEntry);
	if(*m_VertexProgram==0)
	{
		fprintf(stderr, "!!!!CG_ERROR: Unable to build program: %s %s :\n", m_VertexProgramFilename,m_VertexProgramEntry);
		fprintf(stderr, "	%s \n", cgGetLastListing(m_Context));
	}

	m_FragmentProgram=new CGprogram;
	
	const char** arg;
	arg=new const char*[3];
	arg[0]="-ifcvt";
	arg[1]="all";
	arg[2]=NULL;
	
	*m_FragmentProgram=cgCreateProgramFromFile(m_Context,CG_SOURCE,m_FragmentProgramFilename,m_FragmentProfile,m_FragmentProgramEntry,arg);
	cgGLLoadProgram(*m_FragmentProgram);
	fprintf(stderr, "Building CgProgram: %s %s \n", m_FragmentProgramFilename,m_FragmentProgramEntry);
	if(*m_FragmentProgram==0)
	{
		fprintf(stderr, "!!!!CG_ERROR: Unable to build program: %s %s :\n", m_FragmentProgramFilename,m_FragmentProgramEntry);
		fprintf(stderr, "	%s \n", cgGetLastListing(m_Context));
	}
	cgGLSetManageTextureParameters(m_Context,true);
}

void CgProgram::Enable()
{
	if(m_FragmentProgram)
	{
		cgGLEnableProfile(m_FragmentProfile);
		cgGLBindProgram(*m_FragmentProgram);
	}
	if(m_VertexProgram)
	{
		cgGLEnableProfile(m_VertexProfile);
		cgGLBindProgram(*m_VertexProgram);
	}
}

void CgProgram::Disable()
{
	if(m_FragmentProgram)
	{
		cgGLDisableProfile(m_FragmentProfile);
	}
	if(m_VertexProgram)
	{
		cgGLDisableProfile(m_VertexProfile);
	}
}