1 // Copyright 2020 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef DAWNNATIVE_D3D12_GPUDESCRIPTORHEAPALLOCATION_H_ 16 #define DAWNNATIVE_D3D12_GPUDESCRIPTORHEAPALLOCATION_H_ 17 18 #include "dawn_native/IntegerTypes.h" 19 #include "dawn_native/d3d12/IntegerTypes.h" 20 #include "dawn_native/d3d12/d3d12_platform.h" 21 22 namespace dawn_native { namespace d3d12 { 23 24 // Wrapper for a handle into a GPU-only descriptor heap. 25 class GPUDescriptorHeapAllocation { 26 public: 27 GPUDescriptorHeapAllocation() = default; 28 GPUDescriptorHeapAllocation(D3D12_GPU_DESCRIPTOR_HANDLE baseDescriptor, 29 ExecutionSerial lastUsageSerial, 30 HeapVersionID heapSerial); 31 32 D3D12_GPU_DESCRIPTOR_HANDLE GetBaseDescriptor() const; 33 ExecutionSerial GetLastUsageSerial() const; 34 HeapVersionID GetHeapSerial() const; 35 36 private: 37 D3D12_GPU_DESCRIPTOR_HANDLE mBaseDescriptor = {0}; 38 ExecutionSerial mLastUsageSerial = ExecutionSerial(0); 39 HeapVersionID mHeapSerial = HeapVersionID(0); 40 }; 41 42 }} // namespace dawn_native::d3d12 43 44 #endif // DAWNNATIVE_D3D12_CPUDESCRIPTORHEAPALLOCATION_H_ 45