void HLSLBlockEncoder::getBlockLayoutInfo(GLenum typeIn, unsigned int arraySize, bool isRowMajorMatrix, int *arrayStrideOut, int *matrixStrideOut)
{
GLenum type = (mTransposeMatrices ? gl::TransposeMatrixType(typeIn) : typeIn);
// We assume we are only dealing with 4 byte components (no doubles or half-words currently)
ASSERT(gl::VariableComponentSize(gl::VariableComponentType(type)) == BytesPerComponent);
int matrixStride = 0;
int arrayStride = 0;
// if variables are not to be packed, or we're about to
// pack a matrix or array, skip to the start of the next
// register
if (!isPacked() ||
gl::IsMatrixType(type) ||
arraySize > 0)
{
nextRegister();
}
if (gl::IsMatrixType(type))
{
matrixStride = ComponentsPerRegister;
if (arraySize > 0)
{
const int numRegisters = gl::MatrixRegisterCount(type, isRowMajorMatrix);
arrayStride = ComponentsPerRegister * numRegisters;
}
}
else if (arraySize > 0)
{
arrayStride = ComponentsPerRegister;
}
else if (isPacked())
{
int numComponents = gl::VariableComponentCount(type);
if ((numComponents + (mCurrentOffset % ComponentsPerRegister)) > ComponentsPerRegister)
{
nextRegister();
}
}
*matrixStrideOut = matrixStride;
*arrayStrideOut = arrayStride;
}
void Std140BlockEncoder::exitAggregateType()
{
nextRegister();
}
void HLSLBlockEncoder::enterAggregateType()
{
nextRegister();
}
