| // 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_SWAPCHAIN_H_ |
| #define DAWNNATIVE_SWAPCHAIN_H_ |
| |
| #include "dawn_native/Error.h" |
| #include "dawn_native/Forward.h" |
| #include "dawn_native/ObjectBase.h" |
| |
| #include "dawn/dawn_wsi.h" |
| #include "dawn_native/dawn_platform.h" |
| |
| namespace dawn_native { |
| |
| MaybeError ValidateSwapChainDescriptor(const DeviceBase* device, |
| const Surface* surface, |
| const SwapChainDescriptor* descriptor); |
| |
| class SwapChainBase : public ObjectBase { |
| public: |
| SwapChainBase(DeviceBase* device); |
| virtual ~SwapChainBase(); |
| |
| static SwapChainBase* MakeError(DeviceBase* device); |
| |
| // Dawn API |
| virtual void Configure(wgpu::TextureFormat format, |
| wgpu::TextureUsage allowedUsage, |
| uint32_t width, |
| uint32_t height) = 0; |
| virtual TextureViewBase* GetCurrentTextureView() = 0; |
| virtual void Present() = 0; |
| |
| protected: |
| SwapChainBase(DeviceBase* device, ObjectBase::ErrorTag tag); |
| }; |
| |
| // The base class for implementation-based SwapChains that are deprecated. |
| class OldSwapChainBase : public SwapChainBase { |
| public: |
| OldSwapChainBase(DeviceBase* device, const SwapChainDescriptor* descriptor); |
| ~OldSwapChainBase(); |
| |
| static SwapChainBase* MakeError(DeviceBase* device); |
| |
| // Dawn API |
| void Configure(wgpu::TextureFormat format, |
| wgpu::TextureUsage allowedUsage, |
| uint32_t width, |
| uint32_t height) override; |
| TextureViewBase* GetCurrentTextureView() override; |
| void Present() override; |
| |
| protected: |
| const DawnSwapChainImplementation& GetImplementation(); |
| virtual TextureBase* GetNextTextureImpl(const TextureDescriptor*) = 0; |
| virtual MaybeError OnBeforePresent(TextureBase* texture) = 0; |
| |
| private: |
| MaybeError ValidateConfigure(wgpu::TextureFormat format, |
| wgpu::TextureUsage allowedUsage, |
| uint32_t width, |
| uint32_t height) const; |
| MaybeError ValidateGetCurrentTextureView() const; |
| MaybeError ValidatePresent() const; |
| |
| DawnSwapChainImplementation mImplementation = {}; |
| wgpu::TextureFormat mFormat = {}; |
| wgpu::TextureUsage mAllowedUsage; |
| uint32_t mWidth = 0; |
| uint32_t mHeight = 0; |
| Ref<TextureBase> mCurrentTexture; |
| Ref<TextureViewBase> mCurrentTextureView; |
| }; |
| |
| // The base class for surface-based SwapChains that aren't ready yet. |
| class NewSwapChainBase : public SwapChainBase { |
| public: |
| NewSwapChainBase(DeviceBase* device, |
| Surface* surface, |
| const SwapChainDescriptor* descriptor); |
| |
| void Configure(wgpu::TextureFormat format, |
| wgpu::TextureUsage allowedUsage, |
| uint32_t width, |
| uint32_t height) override; |
| TextureViewBase* GetCurrentTextureView() override; |
| void Present() override; |
| |
| uint32_t GetWidth() const; |
| uint32_t GetHeight() const; |
| wgpu::TextureFormat GetFormat() const; |
| wgpu::TextureUsage GetUsage() const; |
| Surface* GetSurface(); |
| |
| private: |
| uint32_t mWidth; |
| uint32_t mHeight; |
| wgpu::TextureFormat mFormat; |
| wgpu::TextureUsage mUsage; |
| |
| Ref<Surface> mSurface; |
| }; |
| |
| } // namespace dawn_native |
| |
| #endif // DAWNNATIVE_SWAPCHAIN_H_ |