//----------------------------------------------------------------------------//
void D3D9Shader::parseParam(D3DXHANDLE parent, String prefix, unsigned int index)
{
D3DXHANDLE hConst = mpConstTable->GetConstant(parent, index);
D3DXCONSTANT_DESC desc;
uint numParams = 1;
HRESULT hr = mpConstTable->GetConstantDesc(hConst, &desc, &numParams);
if(FAILED(hr))
{
TITAN_EXCEPT_API(
"we can not get constants descriptions from shader");
}
String paramName = desc.Name;
// trim the odd '$' which appears at the start of the names in HLSL
if (paramName.at(0) == '$')
paramName.erase(paramName.begin());
// Also trim the '[0]' suffix if it exists, we will add our own indexing later
if (StringUtil::endsWith(paramName, "[0]", false))
{
paramName.erase(paramName.size() - 3);
}
if (desc.Class == D3DXPC_STRUCT)
{
prefix = prefix + paramName + ".";
for(uint i = 0;i < desc.StructMembers; ++i)
{
parseParam(hConst, prefix, i);
}
}
else
{
if (desc.Type == D3DXPT_FLOAT || desc.Type == D3DXPT_INT || desc.Type == D3DXPT_BOOL)
{
size_t paramIndex = desc.RegisterIndex;
String name = prefix + paramName;
ShaderConstantDef def;
def.registerIndex = paramIndex;
populateDef(desc, def);
if (def.isFloat())
{
def.physicalIndex = mFloatRegisterToPhysical->bufferSize;
mFloatRegisterToPhysical->bufferMap.insert(ShaderRegisterIndexUseMap::value_type(
paramIndex,
ShaderRegisterIndexUse(def.physicalIndex,def.arraySize * def.elementSize)));
mFloatRegisterToPhysical->bufferSize += def.arraySize * def.elementSize;
mConstantDefs->floatBufferSize = mFloatRegisterToPhysical->bufferSize;
}
else
{
def.physicalIndex = mIntRegisterToPhysical->bufferSize;
mIntRegisterToPhysical->bufferMap.insert(ShaderRegisterIndexUseMap::value_type(
paramIndex,
ShaderRegisterIndexUse(def.physicalIndex,def.arraySize * def.elementSize)));
mIntRegisterToPhysical->bufferSize += def.arraySize * def.elementSize;
mConstantDefs->intBufferSize = mIntRegisterToPhysical->bufferSize;
}
mConstantDefs->constantDefMap.insert(ShaderConstantDefMap::value_type(name, def));
mConstantDefs->genConstantDefArrayEntries(name, def);
}
}
}
//-----------------------------------------------------------------------
void D3D10HLSLProgram::processParamElement(String prefix, LPCSTR pName,
size_t paramIndex, ID3D10ShaderReflectionType* varRefType) const
{
D3D10_SHADER_TYPE_DESC varRefTypeDesc;
HRESULT hr = varRefType->GetDesc(&varRefTypeDesc);
// Since D3D HLSL doesn't deal with naming of array and struct parameters
// automatically, we have to do it by hand
if (FAILED(hr))
{
OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
"Cannot retrieve constant description from HLSL program.",
"D3D10HLSLProgram::processParamElement");
}
String paramName = pName;
// trim the odd '$' which appears at the start of the names in HLSL
if (paramName.at(0) == '$')
paramName.erase(paramName.begin());
// Also trim the '[0]' suffix if it exists, we will add our own indexing later
if (StringUtil::endsWith(paramName, "[0]", false))
{
paramName.erase(paramName.size() - 3);
}
if (varRefTypeDesc.Class == D3D10_SVC_STRUCT)
{
// work out a new prefix for nested members, if it's an array, we need an index
prefix = prefix + paramName + ".";
// Cascade into struct
for (unsigned int i = 0; i < varRefTypeDesc.Members; ++i)
{
processParamElement(prefix, varRefType->GetMemberTypeName(i), i, varRefType->GetMemberTypeByIndex(i));
}
}
else
{
// Process params
if (varRefTypeDesc.Type == D3D10_SVT_FLOAT || varRefTypeDesc.Type == D3D10_SVT_INT || varRefTypeDesc.Type == D3D10_SVT_BOOL)
{
String name = prefix + paramName;
GpuConstantDefinition def;
// populate type, array size & element size
populateDef(varRefTypeDesc, def);
if (def.isFloat())
{
def.physicalIndex = mFloatLogicalToPhysical.bufferSize;
OGRE_LOCK_MUTEX(mFloatLogicalToPhysical.mutex)
mFloatLogicalToPhysical.map.insert(
GpuLogicalIndexUseMap::value_type(paramIndex,
GpuLogicalIndexUse(def.physicalIndex, def.arraySize * def.elementSize)));
mFloatLogicalToPhysical.bufferSize += def.arraySize * def.elementSize;
mConstantDefs.floatBufferSize = mFloatLogicalToPhysical.bufferSize;
}
else
{
def.physicalIndex = mIntLogicalToPhysical.bufferSize;
OGRE_LOCK_MUTEX(mIntLogicalToPhysical.mutex)
mIntLogicalToPhysical.map.insert(
GpuLogicalIndexUseMap::value_type(paramIndex,
GpuLogicalIndexUse(def.physicalIndex, def.arraySize * def.elementSize)));
mIntLogicalToPhysical.bufferSize += def.arraySize * def.elementSize;
mConstantDefs.intBufferSize = mIntLogicalToPhysical.bufferSize;
}
mConstantDefs.map.insert(GpuConstantDefinitionMap::value_type(name, def));
// Now deal with arrays
mConstantDefs.generateConstantDefinitionArrayEntries(name, def);
}
}
}
