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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_SWAPCHAINMTL_H_
#define DAWNNATIVE_METAL_SWAPCHAINMTL_H_
#include "dawn_native/SwapChain.h"
#include "common/NSRef.h"
@class CAMetalLayer;
@protocol CAMetalDrawable;
namespace dawn_native { namespace metal {
class Device;
class Texture;
class OldSwapChain final : public OldSwapChainBase {
public:
static Ref<OldSwapChain> Create(Device* deivce, const SwapChainDescriptor* descriptor);
protected:
OldSwapChain(Device* device, const SwapChainDescriptor* descriptor);
~OldSwapChain() override;
TextureBase* GetNextTextureImpl(const TextureDescriptor* descriptor) override;
MaybeError OnBeforePresent(TextureViewBase* view) override;
};
class SwapChain final : public NewSwapChainBase {
public:
static ResultOrError<Ref<SwapChain>> Create(Device* device,
Surface* surface,
NewSwapChainBase* previousSwapChain,
const SwapChainDescriptor* descriptor);
~SwapChain() override;
private:
using NewSwapChainBase::NewSwapChainBase;
MaybeError Initialize(NewSwapChainBase* previousSwapChain);
NSRef<CAMetalLayer> mLayer;
NSPRef<id<CAMetalDrawable>> mCurrentDrawable;
Ref<Texture> mTexture;
MaybeError PresentImpl() override;
ResultOrError<TextureViewBase*> GetCurrentTextureViewImpl() override;
void DetachFromSurfaceImpl() override;
};
}} // namespace dawn_native::metal
#endif // DAWNNATIVE_METAL_SWAPCHAINMTL_H_