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// 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_