CrtInt CrtRender::LoadCgProgram( CrtChar * fileName, const CrtInt programType )
{
CrtChar fullFileName[CRT_MAX_NAME_SIZE];
sprintf(fullFileName, "%s%s", ShaderFilePrefix, fileName );
//CrtCpy( fullFileName, fileName );
CrtPrint("CrtRender::LoadCgProgram: Loading %s Shader From File \n", fileName );
// Load And Compile The Vertex Shader From File
if ( programType == CrtFragmentProgram )
cgPrograms[NumCgPrograms] = cgCreateProgramFromFile(cgContext, CG_SOURCE, fullFileName, cgFragmentProfile, "main", 0);
else
cgPrograms[NumCgPrograms] = cgCreateProgramFromFile(cgContext, CG_SOURCE, fullFileName, cgVertexProfile, "main", 0);
// Validate Success
if (cgPrograms[NumCgPrograms] == NULL)
{
// Check for a Cg Error, If So switch to FixedFunction
if ( ! CrtCheckForCgError() )
return -1;
// failed to load CgShader
CrtChar buff[100];
sprintf(buff,"CrtRender::LoadCgProgram: Failed Compile CgFile %s \n", fileName );
MessageBox(NULL, buff, "Cg Compile Error", MB_OK );
return -1;
}
cgGLLoadProgram(cgPrograms[NumCgPrograms]);
NumCgPrograms ++;
return NumCgPrograms - 1;
}
CrtInt CrtRender::LoadCgProgram( CrtChar * fileName, const CrtInt programType )
{
CrtChar fullFileName[CRT_MAX_NAME_SIZE];
CrtCpy( fullFileName, ShaderFilePrefix );
CrtCat( fullFileName, fileName );
CrtPrint(" Loading %s Shader From Binary \n", fullFileName );
// get the name extention
CrtChar * ext = CrtGetExtention( fullFileName );
if ( !CrtCmpIn( ext, ".cg" ) && !CrtCmpIn( ext, ".CG" ) )
{
CrtPrint("CrtRender::LoadCgProgram: Invalid File Name %s \n", fullFileName );
return -1;
}
// Load And Compile The Vertex Shader From File
if ( programType == CrtFragmentProgram )
{
CrtCpy( ext, ".cg" );
cgPrograms[NumCgPrograms] = cgCreateProgramFromFile(cgContext, CG_SOURCE, fullFileName, cgFragmentProfile, NULL, NULL);
}
else
{
CrtCpy( ext, ".cg" );
cgPrograms[NumCgPrograms] = cgCreateProgramFromFile(cgContext, CG_SOURCE, fullFileName, cgVertexProfile, "main", 0);
}
// Validate Success
if (cgPrograms[NumCgPrograms] == NULL)
{
// Check for a Cg Error, If So switch to FixedFunction
if ( ! CrtCheckForCgError() )
return -1;
// failed to load CgShader
CrtChar buff[CRT_MAX_NAME_SIZE];
sprintf(buff," Shader Load Failed %s \n", fileName );
return -1;
}
CrtPrint(" Shader ID %d \n", cgPrograms[NumCgPrograms] );
cgGLLoadProgram(cgPrograms[NumCgPrograms]);
NumCgPrograms ++;
return NumCgPrograms - 1;
}
CrtBool CrtInitCg()
{
// Create a context for the CG programs we are going to load and validate it was successful
CrtPrint("Creating CG context\n");
cgContext = cgCreateContext();
if (cgContext == NULL)
{
// BLahhh exit here
MessageBox(NULL, "Failed To Create Cg Context", "Error", MB_OK);
return CrtFalse;
}
// cgSetAutoCompile(cgContext, CG_COMPILE_MANUAL);
// Register GL states (ugly crashes if you don't do this)
cgGLRegisterStates(cgContext);
// Get The Latest GL Vertex Profile
cgVertexProfile = cgGLGetLatestProfile(CG_GL_VERTEX);
cgFragmentProfile = cgGLGetLatestProfile(CG_GL_FRAGMENT);
// Validate Our Profile Determination Was Successful
if (cgVertexProfile == CG_PROFILE_UNKNOWN || cgFragmentProfile == CG_PROFILE_UNKNOWN)
{
MessageBox(NULL, "Invalid profile type", "Error", MB_OK);
return CrtFalse;
}
// Set The Current Profile
cgGLSetOptimalOptions(cgVertexProfile);
cgGLSetOptimalOptions(cgFragmentProfile);
// Check for errors
if(!CrtCheckForCgError())
return CrtFalse;
return CrtTrue;
}
CrtBool CrtInitCg()
{
CrtPrint("creating CG context\n");
cgContext = cgCreateContext();
if(cgContext == NULL)
{
printf("Failed to create CG context\n");
return CrtFalse;
}
// Register GL states
cgGLRegisterStates(cgContext);
// Get the latest GL Vertex Profile
cgVertexProfile = cgGLGetLatestProfile(CG_GL_VERTEX); // Was hardcoded to CG_PROFILE_SCE_VP_TYPEB
cgFragmentProfile = cgGLGetLatestProfile(CG_GL_FRAGMENT); // Was hardcoded to CG_PROFILE_SCE_FP_TYPEB
// Make sure the profiles came back valid
if(cgVertexProfile == CG_PROFILE_UNKNOWN || cgFragmentProfile == CG_PROFILE_UNKNOWN)
{
CrtPrint("Invalid profile type returned from cgGLGetLatestProfile\n");
return CrtFalse;
}
// Set Optimal Options for this profile
cgGLSetOptimalOptions(cgVertexProfile);
cgGLSetOptimalOptions(cgFragmentProfile);
// Check for Cg errors
if ( !CrtCheckForCgError() )
return CrtFalse;
CrtPrint("CG context created\n");
return CrtTrue;
}
