| // Copyright 2020 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "dawn/native/d3d12/CPUDescriptorHeapAllocationD3D12.h" |
| #include "dawn/native/Error.h" |
| |
| namespace dawn::native::d3d12 { |
| |
| CPUDescriptorHeapAllocation::CPUDescriptorHeapAllocation( |
| D3D12_CPU_DESCRIPTOR_HANDLE baseDescriptor, |
| uint32_t heapIndex) |
| : mBaseDescriptor(baseDescriptor), mHeapIndex(heapIndex) { |
| } |
| |
| D3D12_CPU_DESCRIPTOR_HANDLE CPUDescriptorHeapAllocation::GetBaseDescriptor() const { |
| ASSERT(IsValid()); |
| return mBaseDescriptor; |
| } |
| |
| D3D12_CPU_DESCRIPTOR_HANDLE CPUDescriptorHeapAllocation::OffsetFrom( |
| uint32_t sizeIncrementInBytes, |
| uint32_t offsetInDescriptorCount) const { |
| ASSERT(IsValid()); |
| D3D12_CPU_DESCRIPTOR_HANDLE cpuHandle = mBaseDescriptor; |
| cpuHandle.ptr += sizeIncrementInBytes * offsetInDescriptorCount; |
| return cpuHandle; |
| } |
| |
| uint32_t CPUDescriptorHeapAllocation::GetHeapIndex() const { |
| ASSERT(mHeapIndex >= 0); |
| return mHeapIndex; |
| } |
| |
| bool CPUDescriptorHeapAllocation::IsValid() const { |
| return mBaseDescriptor.ptr != 0; |
| } |
| |
| void CPUDescriptorHeapAllocation::Invalidate() { |
| mBaseDescriptor = {0}; |
| } |
| |
| } // namespace dawn::native::d3d12 |