Int32 CreateResourcePlatformDependent(H1HeapType heapType, H1GpuResourceDesc resourceDesc, H1ResourceStates defaultUsage)
{
HeapProperties heapProps = new HeapProperties();
heapProps.CPUPageProperty = CpuPageProperty.Unknown;
heapProps.MemoryPoolPreference = MemoryPool.Unknown;
heapProps.CreationNodeMask = 1;
heapProps.VisibleNodeMask = 1;
// convert to H1HeapType to HeapType for dx12
switch (heapType)
{
case H1HeapType.Default:
heapProps.Type = HeapType.Default;
break;
case H1HeapType.Readback:
heapProps.Type = HeapType.Readback;
break;
case H1HeapType.Upload:
heapProps.Type = HeapType.Upload;
break;
}
// convert H1ResourceDesc to ResourceDesc for dx12
ResourceDescription resourceDescDX12 = ConvertToResourceDescDx12(resourceDesc);
ResourceStates defaultStates = (ResourceStates)ResourceStateMapper[Convert.ToInt32(defaultUsage)];
Device deviceDX11 = H1Global <H1ManagedRenderer> .Instance.Device;
m_GpuResource = deviceDX11.CreateCommittedResource(heapProps, HeapFlags.None, resourceDescDX12, defaultStates);
Int32 elementSize = Convert.ToInt32(H1RHIDefinitionHelper.ElementTypeToSize(resourceDesc.Format));
if (elementSize == 0)
{
throw new InvalidOperationException("there is no appropriate format is implemented in ElementTypeToSize()!");
}
Int32 totalSizeInBytes = elementSize * Convert.ToInt32(resourceDesc.Width * resourceDesc.Height * resourceDesc.DepthOrArraySize);
return(totalSizeInBytes);
}