| // Copyright 2021 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef SRC_DAWN_NATIVE_EXTERNALTEXTURE_H_ |
| #define SRC_DAWN_NATIVE_EXTERNALTEXTURE_H_ |
| |
| #include <array> |
| |
| #include "dawn/native/Error.h" |
| #include "dawn/native/Forward.h" |
| #include "dawn/native/ObjectBase.h" |
| #include "dawn/native/Subresource.h" |
| |
| namespace dawn::native { |
| |
| class TextureViewBase; |
| |
| struct ExternalTextureParams { |
| uint32_t numPlanes; |
| // TODO(crbug.com/dawn/1466): Only go as few steps as necessary. |
| uint32_t doYuvToRgbConversionOnly; |
| std::array<uint32_t, 2> padding; |
| std::array<float, 12> yuvToRgbConversionMatrix; |
| std::array<float, 8> gammaDecodingParams = {}; |
| std::array<float, 8> gammaEncodingParams = {}; |
| std::array<float, 12> gamutConversionMatrix = {}; |
| std::array<float, 6> sampleTransform = {}; |
| std::array<float, 6> loadTransform = {}; |
| std::array<float, 2> samplePlane0RectMin = {}; |
| std::array<float, 2> samplePlane0RectMax = {}; |
| std::array<float, 2> samplePlane1RectMin = {}; |
| std::array<float, 2> samplePlane1RectMax = {}; |
| std::array<uint32_t, 2> visibleSize = {}; |
| // textureLoad() passes coords in plane0 related size. |
| // Use this Factor to calculate plane1 load coord. |
| std::array<float, 2> plane1CoordFactor = {}; |
| }; |
| |
| 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; |
| |
| const Extent2D& GetVisibleSize() const; |
| const Origin2D& GetVisibleOrigin() const; |
| |
| MaybeError ValidateCanUseInSubmitNow() const; |
| static Ref<ExternalTextureBase> MakeError(DeviceBase* device, const char* label = nullptr); |
| |
| void APIExpire(); |
| void APIDestroy(); |
| void APIRefresh(); |
| |
| protected: |
| ExternalTextureBase(DeviceBase* device, const ExternalTextureDescriptor* descriptor); |
| void DestroyImpl() override; |
| |
| MaybeError Initialize(DeviceBase* device, const ExternalTextureDescriptor* descriptor); |
| |
| ~ExternalTextureBase() override; |
| |
| private: |
| enum class ExternalTextureState { Active, Expired, Destroyed }; |
| ExternalTextureBase(DeviceBase* device, ObjectBase::ErrorTag tag, const char* label); |
| |
| MaybeError ValidateRefresh(); |
| MaybeError ValidateExpire(); |
| |
| Ref<TextureBase> mPlaceholderTexture; |
| Ref<BufferBase> mParamsBuffer; |
| std::array<Ref<TextureViewBase>, kMaxPlanesPerFormat> mTextureViews; |
| |
| // TODO(dawn:1082) Use the visible size and origin in the external texture shader |
| // code to sample video content. |
| Origin2D mVisibleOrigin; |
| Extent2D mVisibleSize; |
| |
| ExternalTextureState mState; |
| }; |
| } // namespace dawn::native |
| |
| #endif // SRC_DAWN_NATIVE_EXTERNALTEXTURE_H_ |