dawn-cmake/src/dawn/native/ExternalTexture.h
jchen10 ef62b58cf9 Skip Gamma and Gamut conversions for BT.709->SRGB
This introduces a new field 'doYuvToRgbConversionOnly' in
ExternalTextureParams to have the WGSL only do yuv->rgb conversion for
better performance. User studies shows that users don't really care
about the Gamma difference between 2.4 and 2.2.
https://source.chromium.org/chromium/chromium/src/+/main:ui/gfx/color_space.cc;l=1022;drc=a1dbb594a6741a400db35fe3678e77bad2504ea4

Bug: dawn:1082
Bug: dawn:1466
Change-Id: I61c0fe65c5969d8a61c267c202c8dd64c259ed8a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/92901
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>
2022-06-22 03:14:26 +00:00

81 lines
2.7 KiB
C++

// 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 = {};
};
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.
explicit 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> mPlaceholderTexture;
Ref<BufferBase> mParamsBuffer;
std::array<Ref<TextureViewBase>, kMaxPlanesPerFormat> mTextureViews;
ExternalTextureState mState;
};
} // namespace dawn::native
#endif // SRC_DAWN_NATIVE_EXTERNALTEXTURE_H_