1 // Copyright 2019 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_HEAPALLOCATORD3D12_H_ 16 #define DAWNNATIVE_D3D12_HEAPALLOCATORD3D12_H_ 17 18 #include "dawn_native/D3D12Backend.h" 19 #include "dawn_native/ResourceHeapAllocator.h" 20 #include "dawn_native/d3d12/d3d12_platform.h" 21 22 namespace dawn_native { namespace d3d12 { 23 24 class Device; 25 26 // Wrapper to allocate a D3D12 heap. 27 class HeapAllocator : public ResourceHeapAllocator { 28 public: 29 HeapAllocator(Device* device, 30 D3D12_HEAP_TYPE heapType, 31 D3D12_HEAP_FLAGS heapFlags, 32 MemorySegment memorySegment); 33 ~HeapAllocator() override = default; 34 35 ResultOrError<std::unique_ptr<ResourceHeapBase>> AllocateResourceHeap( 36 uint64_t size) override; 37 void DeallocateResourceHeap(std::unique_ptr<ResourceHeapBase> allocation) override; 38 39 private: 40 Device* mDevice; 41 D3D12_HEAP_TYPE mHeapType; 42 D3D12_HEAP_FLAGS mHeapFlags; 43 MemorySegment mMemorySegment; 44 }; 45 46 }} // namespace dawn_native::d3d12 47 48 #endif // DAWNNATIVE_D3D12_HEAPALLOCATORD3D12_H_ 49