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// Copyright 2018 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_DEVICEMTL_H_
#define DAWNNATIVE_METAL_DEVICEMTL_H_
#include "dawn_native/dawn_platform.h"
#include "common/Serial.h"
#include "dawn_native/Device.h"
#include "dawn_native/metal/CommandRecordingContext.h"
#include "dawn_native/metal/Forward.h"
#import <IOSurface/IOSurfaceRef.h>
#import <Metal/Metal.h>
#import <QuartzCore/QuartzCore.h>
#include <atomic>
#include <memory>
#include <mutex>
namespace dawn_native { namespace metal {
class MapRequestTracker;
class Device : public DeviceBase {
public:
static ResultOrError<Device*> Create(AdapterBase* adapter,
id<MTLDevice> mtlDevice,
const DeviceDescriptor* descriptor);
~Device() override;
MaybeError Initialize();
CommandBufferBase* CreateCommandBuffer(CommandEncoder* encoder,
const CommandBufferDescriptor* descriptor) override;
MaybeError TickImpl() override;
id<MTLDevice> GetMTLDevice();
id<MTLCommandQueue> GetMTLQueue();
CommandRecordingContext* GetPendingCommandContext();
void SubmitPendingCommandBuffer();
MapRequestTracker* GetMapTracker() const;
TextureBase* CreateTextureWrappingIOSurface(const ExternalImageDescriptor* descriptor,
IOSurfaceRef ioSurface,
uint32_t plane);
void WaitForCommandsToBeScheduled();
ResultOrError<std::unique_ptr<StagingBufferBase>> CreateStagingBuffer(size_t size) override;
MaybeError CopyFromStagingToBuffer(StagingBufferBase* source,
uint64_t sourceOffset,
BufferBase* destination,
uint64_t destinationOffset,
uint64_t size) override;
private:
Device(AdapterBase* adapter, id<MTLDevice> mtlDevice, const DeviceDescriptor* descriptor);
ResultOrError<BindGroupBase*> CreateBindGroupImpl(
const BindGroupDescriptor* descriptor) override;
ResultOrError<BindGroupLayoutBase*> CreateBindGroupLayoutImpl(
const BindGroupLayoutDescriptor* descriptor) override;
ResultOrError<BufferBase*> CreateBufferImpl(const BufferDescriptor* descriptor) override;
ResultOrError<ComputePipelineBase*> CreateComputePipelineImpl(
const ComputePipelineDescriptor* descriptor) override;
ResultOrError<PipelineLayoutBase*> CreatePipelineLayoutImpl(
const PipelineLayoutDescriptor* descriptor) override;
ResultOrError<RenderPipelineBase*> CreateRenderPipelineImpl(
const RenderPipelineDescriptor* descriptor) override;
ResultOrError<SamplerBase*> CreateSamplerImpl(const SamplerDescriptor* descriptor) override;
ResultOrError<ShaderModuleBase*> CreateShaderModuleImpl(
const ShaderModuleDescriptor* descriptor) override;
ResultOrError<SwapChainBase*> CreateSwapChainImpl(
const SwapChainDescriptor* descriptor) override;
ResultOrError<NewSwapChainBase*> CreateSwapChainImpl(
Surface* surface,
NewSwapChainBase* previousSwapChain,
const SwapChainDescriptor* descriptor) override;
ResultOrError<Ref<TextureBase>> CreateTextureImpl(
const TextureDescriptor* descriptor) override;
ResultOrError<TextureViewBase*> CreateTextureViewImpl(
TextureBase* texture,
const TextureViewDescriptor* descriptor) override;
void InitTogglesFromDriver();
void ShutDownImpl() override;
MaybeError WaitForIdleForDestruction() override;
Serial CheckAndUpdateCompletedSerials() override;
id<MTLDevice> mMtlDevice = nil;
id<MTLCommandQueue> mCommandQueue = nil;
std::unique_ptr<MapRequestTracker> mMapTracker;
CommandRecordingContext mCommandContext;
// The completed serial is updated in a Metal completion handler that can be fired on a
// different thread, so it needs to be atomic.
std::atomic<uint64_t> mCompletedSerial;
// mLastSubmittedCommands will be accessed in a Metal schedule handler that can be fired on
// a different thread so we guard access to it with a mutex.
std::mutex mLastSubmittedCommandsMutex;
id<MTLCommandBuffer> mLastSubmittedCommands = nil;
};
}} // namespace dawn_native::metal
#endif // DAWNNATIVE_METAL_DEVICEMTL_H_