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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_METAL_BUFFERMTL_H_
#define DAWNNATIVE_METAL_BUFFERMTL_H_
#include "common/SerialQueue.h"
#include "dawn_native/Buffer.h"
#import <Metal/Metal.h>
namespace dawn_native { namespace metal {
class Device;
class Buffer : public BufferBase {
public:
Buffer(Device* device, const BufferDescriptor* descriptor);
~Buffer();
id<MTLBuffer> GetMTLBuffer();
void OnMapCommandSerialFinished(uint32_t mapSerial, bool isWrite);
private:
void MapReadAsyncImpl(uint32_t serial) override;
void MapWriteAsyncImpl(uint32_t serial) override;
void UnmapImpl() override;
id<MTLBuffer> mMtlBuffer = nil;
};
class MapRequestTracker {
public:
MapRequestTracker(Device* device);
~MapRequestTracker();
void Track(Buffer* buffer, uint32_t mapSerial, bool isWrite);
void Tick(Serial finishedSerial);
private:
Device* mDevice;
struct Request {
Ref<Buffer> buffer;
uint32_t mapSerial;
bool isWrite;
};
SerialQueue<Request> mInflightRequests;
};
}} // namespace dawn_native::metal
#endif // DAWNNATIVE_METAL_BUFFERMTL_H_