//##ModelId=4C32C8AB0148
void fluid::glExtension::btGLShaderModel_4_0::createGeometryShader(const char* path, const char* entry,btGLBufferBundle *bundle)
{
if(hasGeometry)
cgDestroyProgram(geometryShader);
if(path == NULL)
hasGeometry=false;
geometryShader=cgCreateProgramFromFile(context,CG_SOURCE,path,getProfile(CG_GL_GEOMETRY),entry,NULL);
if(bundle != NULL)
{
//search for bindable uniform
GLint max;
glGetIntegerv(GL_MAX_VERTEX_BINDABLE_UNIFORMS_EXT,&max);
char uniformBufferName[256];
for(int i=0;i < max;i++)
{
sprintf_s(uniformBufferName,256,"geometry_bindable_uniform_%d",i);
if(bundle->existsName(uniformBufferName))
{
CGbuffer buf=bundle->getBindableUniformBufferIdForName(uniformBufferName);
cgSetProgramBuffer(geometryShader,i,buf);
}
}
}
cgGLLoadProgram(geometryShader);
hasGeometry=true;
}
//[-------------------------------------------------------]
//[ Public virtual PLRenderer::ProgramUniformBlock functions ]
//[-------------------------------------------------------]
bool ProgramUniformBlockCg::SetUniformBuffer(PLRenderer::UniformBuffer *pUniformBuffer, uint32 nBindingPoint)
{
// Cg hides the binding point internally, so the given binding point is ignored in here...
// Is there an uniform buffer given?
if (pUniformBuffer) {
// The given uniform buffer must have at least the same number of bytes as this uniform block and the shader language must match!
if (cgGetParameterResourceSize(m_pCgParameter) <= static_cast<long>(pUniformBuffer->GetSize()) && m_sShaderLanguage == pUniformBuffer->GetShaderLanguage()) {
// The Cg-documentation states: (http://http.developer.nvidia.com/Cg/cgSetProgramBuffer.html)
// "When the next program bind operation occurs, each buffer index which is set to a valid buffer handle is bound (along with the program) for use by the 3D API"
cgSetProgramBuffer(cgGetParameterProgram(m_pCgParameter), cgGetParameterBufferIndex(m_pCgParameter), static_cast<UniformBufferCg*>(pUniformBuffer)->GetCgBuffer());
} else {
// Error!
return false;
}
} else {
cgSetProgramBuffer(cgGetParameterProgram(m_pCgParameter), cgGetParameterBufferIndex(m_pCgParameter), nullptr);
}
// Done
return true;
}