Esempio n. 1
0
//-----------------------------------------------------------------------------
UniformParameterPtr Program::resolveParameter(GpuConstantType type, 
									int index, uint16 variability,
									const String& suggestedName,
									size_t size)
{
	UniformParameterPtr param;

	if (index == -1)
	{
		index = 0;

		// Find the next available index of the target type.
		UniformParameterIterator it;

		for (it = mParameters.begin(); it != mParameters.end(); ++it)
		{
			if ((*it)->getType() == type &&
				(*it)->isAutoConstantParameter() == false)
			{
				index++;
			}
		}
	}
	else
	{
		// Check if parameter already exists.
		param = getParameterByType(type, index);
		if (param.get() != NULL)
		{		
			return param;		
		}
	}
	
	// Create new parameter.
	param = ParameterFactory::createUniform(type, index, variability, suggestedName, size);
	addParameter(param);

	return param;
}
Esempio n. 2
0
//-----------------------------------------------------------------------------
UniformParameterPtr Program::resolveAutoParameterInt(GpuProgramParameters::AutoConstantType autoType, GpuConstantType type, 
										   size_t data, size_t size)
{
	UniformParameterPtr param;

	// Check if parameter already exists.
	param = getParameterByAutoType(autoType);
	if (param.get() != NULL)
	{
		if (param->isAutoConstantIntParameter() &&
			param->getAutoConstantIntData() == data)
		{
			param->setSize(std::max(size, param->getSize()));
			return param;
		}
	}

	// Create new parameter.
	param = UniformParameterPtr(OGRE_NEW UniformParameter(autoType, data, size, type));
	addParameter(param);

	return param;
}
//-----------------------------------------------------------------------
bool FFPTransform::createCpuSubPrograms(ProgramSet* programSet)
{
	Program* vsProgram = programSet->getCpuVertexProgram();
	
	// Resolve World View Projection Matrix.
	UniformParameterPtr wvpMatrix = vsProgram->resolveAutoParameterInt(GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX, 0);
	if (wvpMatrix.get() == NULL)
		return false;
		
	Function* vsEntry = vsProgram->getEntryPointFunction();
	assert(vsEntry != NULL);

	// Resolve input position parameter.
	ParameterPtr positionIn = vsEntry->resolveInputParameter(Parameter::SPS_POSITION, 0, Parameter::SPC_POSITION_OBJECT_SPACE, GCT_FLOAT4);	
	if (positionIn.get() == NULL)
		return false;
	

	// Resolve output position parameter.
	ParameterPtr positionOut = vsEntry->resolveOutputParameter(Parameter::SPS_POSITION, 0, Parameter::SPC_POSITION_PROJECTIVE_SPACE, GCT_FLOAT4);
	if (positionOut.get() == NULL)
		return false;
	

	// Add dependency.
	vsProgram->addDependency(FFP_LIB_TRANSFORM);

	FunctionInvocation* transformFunc = OGRE_NEW FunctionInvocation(FFP_FUNC_TRANSFORM,  FFP_VS_TRANSFORM, 0); 

	transformFunc->pushOperand(wvpMatrix, Operand::OPS_IN);
	transformFunc->pushOperand(positionIn, Operand::OPS_IN);
	transformFunc->pushOperand(positionOut, Operand::OPS_OUT);

	vsEntry->addAtomInstace(transformFunc);

	return true;
}