| // Copyright 2019 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. |
| |
| #ifndef DAWNNATIVE_D3D12_RESOURCEALLOCATORMANAGERD3D12_H_ |
| #define DAWNNATIVE_D3D12_RESOURCEALLOCATORMANAGERD3D12_H_ |
| |
| #include "dawn_native/d3d12/CommittedResourceAllocatorD3D12.h" |
| |
| #include <array> |
| |
| namespace dawn_native { namespace d3d12 { |
| |
| class Device; |
| |
| // Manages a list of resource allocators used by the device to create resources using multiple |
| // allocation methods. |
| class ResourceAllocatorManager { |
| public: |
| ResourceAllocatorManager(Device* device); |
| |
| ResultOrError<ResourceMemoryAllocation> AllocateMemory( |
| D3D12_HEAP_TYPE heapType, |
| const D3D12_RESOURCE_DESC& resourceDescriptor, |
| D3D12_RESOURCE_STATES initialUsage, |
| D3D12_HEAP_FLAGS heapFlags); |
| |
| void DeallocateMemory(ResourceMemoryAllocation& allocation); |
| |
| private: |
| size_t GetD3D12HeapTypeToIndex(D3D12_HEAP_TYPE heapType) const; |
| |
| Device* mDevice; |
| |
| static constexpr uint32_t kNumHeapTypes = 4u; // Number of D3D12_HEAP_TYPE |
| |
| static_assert(D3D12_HEAP_TYPE_READBACK <= kNumHeapTypes, |
| "Readback heap type enum exceeds max heap types"); |
| static_assert(D3D12_HEAP_TYPE_UPLOAD <= kNumHeapTypes, |
| "Upload heap type enum exceeds max heap types"); |
| static_assert(D3D12_HEAP_TYPE_DEFAULT <= kNumHeapTypes, |
| "Default heap type enum exceeds max heap types"); |
| static_assert(D3D12_HEAP_TYPE_CUSTOM <= kNumHeapTypes, |
| "Custom heap type enum exceeds max heap types"); |
| |
| std::array<std::unique_ptr<CommittedResourceAllocator>, kNumHeapTypes> |
| mDirectResourceAllocators; |
| }; |
| |
| }} // namespace dawn_native::d3d12 |
| |
| #endif // DAWNNATIVE_D3D12_RESOURCEALLOCATORMANAGERD3D12_H_ |