1 /* 2 * Copyright 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <compositionengine/DisplayColorProfile.h> 20 #include <compositionengine/RenderSurface.h> 21 #include <compositionengine/impl/Output.h> 22 #include <ui/Rect.h> 23 24 #include "RenderArea.h" 25 26 namespace android { 27 28 struct ScreenCaptureOutputArgs { 29 const compositionengine::CompositionEngine& compositionEngine; 30 const compositionengine::Output::ColorProfile& colorProfile; 31 const RenderArea& renderArea; 32 ui::LayerStack layerStack; 33 std::shared_ptr<renderengine::ExternalTexture> buffer; 34 float sdrWhitePointNits; 35 float displayBrightnessNits; 36 // Counterintuitively, when targetBrightness > 1.0 then dim the scene. 37 float targetBrightness; 38 bool regionSampling; 39 bool treat170mAsSrgb; 40 bool dimInGammaSpaceForEnhancedScreenshots; 41 }; 42 43 // ScreenCaptureOutput is used to compose a set of layers into a preallocated buffer. 44 // 45 // SurfaceFlinger passes instances of ScreenCaptureOutput to CompositionEngine in calls to 46 // SurfaceFlinger::captureLayers and SurfaceFlinger::captureDisplay. 47 class ScreenCaptureOutput : public compositionengine::impl::Output { 48 public: 49 ScreenCaptureOutput(const RenderArea& renderArea, 50 const compositionengine::Output::ColorProfile& colorProfile, 51 bool regionSampling, bool dimInGammaSpaceForEnhancedScreenshots); 52 53 void updateColorProfile(const compositionengine::CompositionRefreshArgs&) override; 54 55 std::vector<compositionengine::LayerFE::LayerSettings> generateClientCompositionRequests( 56 bool supportsProtectedContent, ui::Dataspace outputDataspace, 57 std::vector<compositionengine::LayerFE*>& outLayerFEs) override; 58 59 protected: getSkipColorTransform()60 bool getSkipColorTransform() const override { return false; } 61 renderengine::DisplaySettings generateClientCompositionDisplaySettings() const override; 62 63 private: 64 const RenderArea& mRenderArea; 65 const compositionengine::Output::ColorProfile& mColorProfile; 66 const bool mRegionSampling; 67 const bool mDimInGammaSpaceForEnhancedScreenshots; 68 }; 69 70 std::shared_ptr<ScreenCaptureOutput> createScreenCaptureOutput(ScreenCaptureOutputArgs); 71 72 } // namespace android 73