| /* |
| * Copyright 2020 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/ganesh/d3d/GrD3DDescriptorHeap.h" |
| #include "src/gpu/ganesh/d3d/GrD3DGpu.h" |
| |
| std::unique_ptr<GrD3DDescriptorHeap> GrD3DDescriptorHeap::Make(GrD3DGpu* gpu, |
| D3D12_DESCRIPTOR_HEAP_TYPE type, |
| unsigned int numDescriptors, |
| D3D12_DESCRIPTOR_HEAP_FLAGS flags) { |
| D3D12_DESCRIPTOR_HEAP_DESC heapDesc = {}; |
| heapDesc.Type = type; |
| heapDesc.NumDescriptors = numDescriptors; |
| heapDesc.Flags = flags; |
| |
| ID3D12DescriptorHeap* heap; |
| gpu->device()->CreateDescriptorHeap(&heapDesc, IID_PPV_ARGS(&heap)); |
| |
| return std::unique_ptr<GrD3DDescriptorHeap>( |
| new GrD3DDescriptorHeap(std::move(gr_cp<ID3D12DescriptorHeap>(heap)), |
| gpu->device()->GetDescriptorHandleIncrementSize(type))); |
| } |
| |
| GrD3DDescriptorHeap::GrD3DDescriptorHeap(const gr_cp<ID3D12DescriptorHeap>& heap, |
| unsigned int handleIncrementSize) |
| : fHeap(heap) |
| , fHandleIncrementSize(handleIncrementSize) |
| , fUniqueID(GenID()) { |
| fCPUHeapStart = fHeap->GetCPUDescriptorHandleForHeapStart(); |
| fGPUHeapStart = fHeap->GetGPUDescriptorHandleForHeapStart(); |
| } |
| |
| GrD3DDescriptorHeap::CPUHandle GrD3DDescriptorHeap::getCPUHandle(unsigned int index) { |
| SkASSERT(index < fHeap->GetDesc().NumDescriptors); |
| D3D12_CPU_DESCRIPTOR_HANDLE handle = fCPUHeapStart; |
| handle.ptr += index * fHandleIncrementSize; |
| return {handle, fUniqueID}; |
| } |
| |
| GrD3DDescriptorHeap::GPUHandle GrD3DDescriptorHeap::getGPUHandle(unsigned int index) { |
| SkASSERT(index < fHeap->GetDesc().NumDescriptors); |
| D3D12_GPU_DESCRIPTOR_HANDLE handle = fGPUHeapStart; |
| handle.ptr += index * fHandleIncrementSize; |
| return {handle, fUniqueID}; |
| } |
| |
| |
| |