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// 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 SRC_DAWN_NATIVE_VULKAN_RESOURCEMEMORYALLOCATORVK_H_
#define SRC_DAWN_NATIVE_VULKAN_RESOURCEMEMORYALLOCATORVK_H_
#include <memory>
#include <vector>
#include "dawn/common/SerialQueue.h"
#include "dawn/common/vulkan_platform.h"
#include "dawn/native/Error.h"
#include "dawn/native/IntegerTypes.h"
#include "dawn/native/PooledResourceMemoryAllocator.h"
#include "dawn/native/ResourceMemoryAllocation.h"
namespace dawn::native::vulkan {
class Device;
// Various kinds of memory that influence the result of the allocation. For example, to take
// into account mappability and Vulkan's bufferImageGranularity.
enum class MemoryKind {
LazilyAllocated,
Linear,
LinearMappable,
Opaque,
};
class ResourceMemoryAllocator {
public:
explicit ResourceMemoryAllocator(Device* device);
~ResourceMemoryAllocator();
ResultOrError<ResourceMemoryAllocation> Allocate(const VkMemoryRequirements& requirements,
MemoryKind kind,
bool forceDisableSubAllocation = false);
void Deallocate(ResourceMemoryAllocation* allocation);
void DestroyPool();
void Tick(ExecutionSerial completedSerial);
int FindBestTypeIndex(VkMemoryRequirements requirements, MemoryKind kind);
private:
Device* mDevice;
class SingleTypeAllocator;
std::vector<std::unique_ptr<SingleTypeAllocator>> mAllocatorsPerType;
SerialQueue<ExecutionSerial, ResourceMemoryAllocation> mSubAllocationsToDelete;
};
} // namespace dawn::native::vulkan
#endif // SRC_DAWN_NATIVE_VULKAN_RESOURCEMEMORYALLOCATORVK_H_