1 // Copyright 2017 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_VULKAN_MEMORYALLOCATOR_H_ 16 #define DAWNNATIVE_VULKAN_MEMORYALLOCATOR_H_ 17 18 #include "common/SerialQueue.h" 19 #include "common/vulkan_platform.h" 20 21 namespace dawn_native { namespace vulkan { 22 23 class Device; 24 class MemoryAllocator; 25 26 class DeviceMemoryAllocation { 27 public: 28 ~DeviceMemoryAllocation(); 29 VkDeviceMemory GetMemory() const; 30 size_t GetMemoryOffset() const; 31 uint8_t* GetMappedPointer() const; 32 33 private: 34 friend class MemoryAllocator; 35 VkDeviceMemory mMemory = VK_NULL_HANDLE; 36 size_t mOffset = 0; 37 uint8_t* mMappedPointer = nullptr; 38 }; 39 40 class MemoryAllocator { 41 public: 42 MemoryAllocator(Device* device); 43 ~MemoryAllocator(); 44 45 bool Allocate(VkMemoryRequirements requirements, 46 bool mappable, 47 DeviceMemoryAllocation* allocation); 48 void Free(DeviceMemoryAllocation* allocation); 49 50 void Tick(Serial finishedSerial); 51 52 private: 53 Device* mDevice = nullptr; 54 }; 55 56 }} // namespace dawn_native::vulkan 57 58 #endif // DAWNNATIVE_VULKAN_MEMORYALLOCATOR_H_ 59