blob: 36a4579fe8e373816b9c2c96bf7a3a6f2360a053 [file] [log] [blame] [edit]
// 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 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> coordTransformMatrix = {};
};
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 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_