| // Copyright 2017 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_VULKAN_MEMORYALLOCATOR_H_ |
| #define DAWNNATIVE_VULKAN_MEMORYALLOCATOR_H_ |
| |
| #include "common/SerialQueue.h" |
| #include "common/vulkan_platform.h" |
| |
| namespace dawn_native { namespace vulkan { |
| |
| class Device; |
| class MemoryAllocator; |
| |
| class DeviceMemoryAllocation { |
| public: |
| ~DeviceMemoryAllocation(); |
| VkDeviceMemory GetMemory() const; |
| size_t GetMemoryOffset() const; |
| uint8_t* GetMappedPointer() const; |
| |
| private: |
| friend class MemoryAllocator; |
| VkDeviceMemory mMemory = VK_NULL_HANDLE; |
| size_t mOffset = 0; |
| uint8_t* mMappedPointer = nullptr; |
| }; |
| |
| class MemoryAllocator { |
| public: |
| MemoryAllocator(Device* device); |
| ~MemoryAllocator(); |
| |
| int FindBestTypeIndex(VkMemoryRequirements requirements, bool mappable); |
| bool Allocate(VkMemoryRequirements requirements, |
| bool mappable, |
| DeviceMemoryAllocation* allocation); |
| void Free(DeviceMemoryAllocation* allocation); |
| |
| void Tick(Serial finishedSerial); |
| |
| private: |
| Device* mDevice = nullptr; |
| }; |
| |
| }} // namespace dawn_native::vulkan |
| |
| #endif // DAWNNATIVE_VULKAN_MEMORYALLOCATOR_H_ |