| // Copyright 2021 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_EXTERNALTEXTURE_H_ |
| #define DAWNNATIVE_EXTERNALTEXTURE_H_ |
| |
| #include "dawn/native/Error.h" |
| #include "dawn/native/Forward.h" |
| #include "dawn/native/ObjectBase.h" |
| #include "dawn/native/Subresource.h" |
| |
| #include <array> |
| |
| namespace dawn::native { |
| |
| class TextureViewBase; |
| |
| struct ExternalTextureParams { |
| uint32_t numPlanes; |
| float vr; |
| float vg; |
| float ub; |
| float ug; |
| }; |
| |
| MaybeError ValidateExternalTextureDescriptor(const DeviceBase* device, |
| const ExternalTextureDescriptor* descriptor); |
| |
| class ExternalTextureBase : public ApiObjectBase { |
| public: |
| static ResultOrError<Ref<ExternalTextureBase>> Create( |
| DeviceBase* device, |
| const ExternalTextureDescriptor* descriptor); |
| |
| BufferBase* GetParamsBuffer() const; |
| const std::array<Ref<TextureViewBase>, kMaxPlanesPerFormat>& GetTextureViews() const; |
| ObjectType GetType() const override; |
| |
| MaybeError ValidateCanUseInSubmitNow() const; |
| static ExternalTextureBase* MakeError(DeviceBase* device); |
| |
| void APIDestroy(); |
| |
| protected: |
| // Constructor used only for mocking and testing. |
| ExternalTextureBase(DeviceBase* device); |
| void DestroyImpl() override; |
| |
| ~ExternalTextureBase() override; |
| |
| private: |
| ExternalTextureBase(DeviceBase* device, const ExternalTextureDescriptor* descriptor); |
| |
| enum class ExternalTextureState { Alive, Destroyed }; |
| ExternalTextureBase(DeviceBase* device, ObjectBase::ErrorTag tag); |
| MaybeError Initialize(DeviceBase* device, const ExternalTextureDescriptor* descriptor); |
| |
| Ref<TextureBase> mDummyTexture; |
| Ref<BufferBase> mParamsBuffer; |
| std::array<Ref<TextureViewBase>, kMaxPlanesPerFormat> mTextureViews; |
| |
| ExternalTextureState mState; |
| }; |
| } // namespace dawn::native |
| |
| #endif // DAWNNATIVE_EXTERNALTEXTURE_H_ |