Method Create

trinityal/dx12/Tr2ResourceHelper.cpp:24–114

}

ALResult Tr2ResourceHelper::Create( Strategy strategy, size_t size, D3D12_RESOURCE_FLAGS resourceFlags, D3D12_RESOURCE_STATES state, bool requiresImmediateBarriers, uint32_t initialDataCount, const D3D12_SUBRESOURCE_DATA* initialData, Tr2PrimaryRenderContextAL& renderContext )
{
	if( strategy != DYNAMIC )
	{
		CComPtr<ID3D12Resource> buffer, scratch;
		auto heap = HeapDesc( D3D12_HEAP_TYPE_DEFAULT );
		auto resourceDesc = BufferDesc( size, resourceFlags );
		auto initialState = initialDataCount ? D3D12_RESOURCE_STATE_COPY_DEST : state;
		CR_RETURN_HR( renderContext.m_device->CreateCommittedResource(
			&heap,
			D3D12_HEAP_FLAG_NONE,
			&resourceDesc,
			initialState,
			nullptr,
			IID_PPV_ARGS( &buffer ) ) );
		if( initialDataCount )
		{
			auto scratchHeap = HeapDesc( D3D12_HEAP_TYPE_UPLOAD );
			auto scratchDesc = BufferDesc( size );
			CR_RETURN_HR( renderContext.m_device->CreateCommittedResource(
				&scratchHeap,
				D3D12_HEAP_FLAG_NONE,
				&scratchDesc,
				D3D12_RESOURCE_STATE_GENERIC_READ,
				nullptr,
				IID_PPV_ARGS( &scratch ) ) );
			if( !UpdateSubresources(
					renderContext.m_commandList,
					buffer,
					scratch,
					0,
					0,
					initialDataCount,
					initialData ) )
			{
				return E_FAIL;
			}
			if( state != initialState )
			{
				renderContext.ResourceBarrierDx12( Transition( buffer, initialState, state ) );
				if( requiresImmediateBarriers )
				{
					renderContext.FlushBarriersDx12( buffer );
				}
			}
			if( strategy == STATIC )
			{
				RELEASE_LATER( &renderContext, scratch );
			}
			else
			{
				Resource r = { scratch, renderContext.GetRecordingFrameNumber(), nullptr, 0 };
				D3D12_RANGE readRange = { 0, 0 };
				CR_RETURN_HR( scratch->Map( 0, &readRange, &r.cpuAddress ) );

				m_resources.push_back( r );
			}
		}