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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_D3D12_SWAPCHAIND3D12_H_
#define DAWNNATIVE_D3D12_SWAPCHAIND3D12_H_
#include "dawn_native/SwapChain.h"
#include "dawn_native/IntegerTypes.h"
#include "dawn_native/d3d12/d3d12_platform.h"
namespace dawn_native { namespace d3d12 {
class Device;
class Texture;
class OldSwapChain final : public OldSwapChainBase {
public:
static Ref<OldSwapChain> Create(Device* device, const SwapChainDescriptor* descriptor);
protected:
OldSwapChain(Device* device, const SwapChainDescriptor* descriptor);
~OldSwapChain() override;
TextureBase* GetNextTextureImpl(const TextureDescriptor* descriptor) override;
MaybeError OnBeforePresent(TextureViewBase* view) override;
wgpu::TextureUsage mTextureUsage;
};
class SwapChain final : public NewSwapChainBase {
public:
static ResultOrError<Ref<SwapChain>> Create(Device* device,
Surface* surface,
NewSwapChainBase* previousSwapChain,
const SwapChainDescriptor* descriptor);
private:
~SwapChain() override;
void DestroyImpl() override;
using NewSwapChainBase::NewSwapChainBase;
MaybeError Initialize(NewSwapChainBase* previousSwapChain);
struct Config {
// Information that's passed to the D3D12 swapchain creation call.
UINT bufferCount;
UINT swapChainFlags;
DXGI_FORMAT format;
DXGI_USAGE usage;
};
// NewSwapChainBase implementation
MaybeError PresentImpl() override;
ResultOrError<TextureViewBase*> GetCurrentTextureViewImpl() override;
void DetachFromSurfaceImpl() override;
// Does the swapchain initialization steps assuming there is nothing we can reuse.
MaybeError InitializeSwapChainFromScratch();
// Does the swapchain initialization step of gathering the buffers.
MaybeError CollectSwapChainBuffers();
// Calls DetachFromSurface but also synchronously waits until all references to the
// swapchain and buffers are removed, as that's a constraint for some DXGI operations.
MaybeError DetachAndWaitForDeallocation();
Config mConfig;
ComPtr<IDXGISwapChain3> mDXGISwapChain;
std::vector<ComPtr<ID3D12Resource>> mBuffers;
std::vector<ExecutionSerial> mBufferLastUsedSerials;
uint32_t mCurrentBuffer = 0;
Ref<Texture> mApiTexture;
};
}} // namespace dawn_native::d3d12
#endif // DAWNNATIVE_D3D12_SWAPCHAIN_D3D12_H_