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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 "dawn_native/Commands.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::metal {
namespace {
struct KalmanInfo;
}
class Device final : public DeviceBase {
public:
static ResultOrError<Ref<Device>> Create(AdapterBase* adapter,
NSPRef<id<MTLDevice>> mtlDevice,
const DeviceDescriptor* descriptor);
~Device() override;
MaybeError Initialize();
MaybeError TickImpl() override;
id<MTLDevice> GetMTLDevice();
id<MTLCommandQueue> GetMTLQueue();
CommandRecordingContext* GetPendingCommandContext();
MaybeError SubmitPendingCommandBuffer();
Ref<Texture> 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;
MaybeError CopyFromStagingToTexture(const StagingBufferBase* source,
const TextureDataLayout& dataLayout,
TextureCopy* dst,
const Extent3D& copySizePixels) override;
uint32_t GetOptimalBytesPerRowAlignment() const override;
uint64_t GetOptimalBufferToTextureCopyOffsetAlignment() const override;
float GetTimestampPeriodInNS() const override;
private:
Device(AdapterBase* adapter,
NSPRef<id<MTLDevice>> mtlDevice,
const DeviceDescriptor* descriptor);
ResultOrError<Ref<BindGroupBase>> CreateBindGroupImpl(
const BindGroupDescriptor* descriptor) override;
ResultOrError<Ref<BindGroupLayoutBase>> CreateBindGroupLayoutImpl(
const BindGroupLayoutDescriptor* descriptor,
PipelineCompatibilityToken pipelineCompatibilityToken) override;
ResultOrError<Ref<BufferBase>> CreateBufferImpl(
const BufferDescriptor* descriptor) override;
ResultOrError<Ref<CommandBufferBase>> CreateCommandBuffer(
CommandEncoder* encoder,
const CommandBufferDescriptor* descriptor) override;
ResultOrError<Ref<PipelineLayoutBase>> CreatePipelineLayoutImpl(
const PipelineLayoutDescriptor* descriptor) override;
ResultOrError<Ref<QuerySetBase>> CreateQuerySetImpl(
const QuerySetDescriptor* descriptor) override;
ResultOrError<Ref<SamplerBase>> CreateSamplerImpl(
const SamplerDescriptor* descriptor) override;
ResultOrError<Ref<ShaderModuleBase>> CreateShaderModuleImpl(
const ShaderModuleDescriptor* descriptor,
ShaderModuleParseResult* parseResult) override;
ResultOrError<Ref<SwapChainBase>> CreateSwapChainImpl(
const SwapChainDescriptor* descriptor) override;
ResultOrError<Ref<NewSwapChainBase>> CreateSwapChainImpl(
Surface* surface,
NewSwapChainBase* previousSwapChain,
const SwapChainDescriptor* descriptor) override;
ResultOrError<Ref<TextureBase>> CreateTextureImpl(
const TextureDescriptor* descriptor) override;
ResultOrError<Ref<TextureViewBase>> CreateTextureViewImpl(
TextureBase* texture,
const TextureViewDescriptor* descriptor) override;
Ref<ComputePipelineBase> CreateUninitializedComputePipelineImpl(
const ComputePipelineDescriptor* descriptor) override;
Ref<RenderPipelineBase> CreateUninitializedRenderPipelineImpl(
const RenderPipelineDescriptor* descriptor) override;
void InitializeComputePipelineAsyncImpl(Ref<ComputePipelineBase> computePipeline,
WGPUCreateComputePipelineAsyncCallback callback,
void* userdata) override;
void InitializeRenderPipelineAsyncImpl(Ref<RenderPipelineBase> renderPipeline,
WGPUCreateRenderPipelineAsyncCallback callback,
void* userdata) override;
void InitTogglesFromDriver();
void DestroyImpl() override;
MaybeError WaitForIdleForDestruction() override;
ResultOrError<ExecutionSerial> CheckAndUpdateCompletedSerials() override;
NSPRef<id<MTLDevice>> mMtlDevice;
NSPRef<id<MTLCommandQueue>> mCommandQueue;
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;
NSPRef<id<MTLCommandBuffer>> mLastSubmittedCommands;
// The current estimation of timestamp period
float mTimestampPeriod = 1.0f;
// The base of CPU timestamp and GPU timestamp to measure the linear regression between GPU
// and CPU timestamps.
MTLTimestamp mCpuTimestamp API_AVAILABLE(macos(10.15), ios(14.0)) = 0;
MTLTimestamp mGpuTimestamp API_AVAILABLE(macos(10.15), ios(14.0)) = 0;
// The parameters for kalman filter
std::unique_ptr<KalmanInfo> mKalmanInfo;
};
} // namespace dawn::native::metal
#endif // DAWNNATIVE_METAL_DEVICEMTL_H_