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/*
* Copyright 2022 The Android Open Source Project
*
* 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.
*/
#pragma once
#include <compositionengine/DisplayColorProfile.h>
#include <compositionengine/RenderSurface.h>
#include <compositionengine/impl/Output.h>
#include <ui/Rect.h>
#include "RenderArea.h"
namespace android {
struct ScreenCaptureOutputArgs {
const compositionengine::CompositionEngine& compositionEngine;
const compositionengine::Output::ColorProfile& colorProfile;
const RenderArea& renderArea;
ui::LayerStack layerStack;
std::shared_ptr<renderengine::ExternalTexture> buffer;
float sdrWhitePointNits;
float displayBrightnessNits;
// Counterintuitively, when targetBrightness > 1.0 then dim the scene.
float targetBrightness;
bool regionSampling;
bool treat170mAsSrgb;
bool dimInGammaSpaceForEnhancedScreenshots;
bool isProtected = false;
};
// ScreenCaptureOutput is used to compose a set of layers into a preallocated buffer.
//
// SurfaceFlinger passes instances of ScreenCaptureOutput to CompositionEngine in calls to
// SurfaceFlinger::captureLayers and SurfaceFlinger::captureDisplay.
class ScreenCaptureOutput : public compositionengine::impl::Output {
public:
ScreenCaptureOutput(const RenderArea& renderArea,
const compositionengine::Output::ColorProfile& colorProfile,
bool regionSampling, bool dimInGammaSpaceForEnhancedScreenshots);
void updateColorProfile(const compositionengine::CompositionRefreshArgs&) override;
std::vector<compositionengine::LayerFE::LayerSettings> generateClientCompositionRequests(
bool supportsProtectedContent, ui::Dataspace outputDataspace,
std::vector<compositionengine::LayerFE*>& outLayerFEs) override;
protected:
bool getSkipColorTransform() const override { return false; }
renderengine::DisplaySettings generateClientCompositionDisplaySettings(
const std::shared_ptr<renderengine::ExternalTexture>& buffer) const override;
private:
const RenderArea& mRenderArea;
const compositionengine::Output::ColorProfile& mColorProfile;
const bool mRegionSampling;
const bool mDimInGammaSpaceForEnhancedScreenshots;
};
std::shared_ptr<ScreenCaptureOutput> createScreenCaptureOutput(ScreenCaptureOutputArgs);
} // namespace android
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