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 #include "ScreenCaptureOutput.h"
18 #include "ScreenCaptureRenderSurface.h"
19
20 #include <compositionengine/CompositionEngine.h>
21 #include <compositionengine/DisplayColorProfileCreationArgs.h>
22 #include <compositionengine/impl/DisplayColorProfile.h>
23 #include <ui/Rotation.h>
24
25 namespace android {
26
27 namespace {
28
getDisplaySize(ui::Rotation orientation,const Rect & sourceCrop)29 ui::Size getDisplaySize(ui::Rotation orientation, const Rect& sourceCrop) {
30 if (orientation == ui::Rotation::Rotation90 || orientation == ui::Rotation::Rotation270) {
31 return {sourceCrop.getHeight(), sourceCrop.getWidth()};
32 }
33 return {sourceCrop.getWidth(), sourceCrop.getHeight()};
34 }
35
getOrientedDisplaySpaceRect(ui::Rotation orientation,int reqWidth,int reqHeight)36 Rect getOrientedDisplaySpaceRect(ui::Rotation orientation, int reqWidth, int reqHeight) {
37 if (orientation == ui::Rotation::Rotation90 || orientation == ui::Rotation::Rotation270) {
38 return {reqHeight, reqWidth};
39 }
40 return {reqWidth, reqHeight};
41 }
42
43 } // namespace
44
createScreenCaptureOutput(ScreenCaptureOutputArgs args)45 std::shared_ptr<ScreenCaptureOutput> createScreenCaptureOutput(ScreenCaptureOutputArgs args) {
46 std::shared_ptr<ScreenCaptureOutput> output = compositionengine::impl::createOutputTemplated<
47 ScreenCaptureOutput, compositionengine::CompositionEngine, const RenderArea&,
48 const compositionengine::Output::ColorProfile&,
49 bool>(args.compositionEngine, args.renderArea, args.colorProfile, args.regionSampling,
50 args.dimInGammaSpaceForEnhancedScreenshots);
51 output->editState().isSecure = args.renderArea.isSecure();
52 output->setCompositionEnabled(true);
53 output->setLayerFilter({args.layerStack});
54 output->setRenderSurface(std::make_unique<ScreenCaptureRenderSurface>(std::move(args.buffer)));
55 output->setDisplayBrightness(args.sdrWhitePointNits, args.displayBrightnessNits);
56 output->editState().clientTargetBrightness = args.targetBrightness;
57 output->editState().treat170mAsSrgb = args.treat170mAsSrgb;
58
59 output->setDisplayColorProfile(std::make_unique<compositionengine::impl::DisplayColorProfile>(
60 compositionengine::DisplayColorProfileCreationArgsBuilder()
61 .setHasWideColorGamut(true)
62 .Build()));
63
64 const Rect& sourceCrop = args.renderArea.getSourceCrop();
65 const ui::Rotation orientation = ui::Transform::toRotation(args.renderArea.getRotationFlags());
66 output->setDisplaySize(getDisplaySize(orientation, sourceCrop));
67 output->setProjection(orientation, sourceCrop,
68 getOrientedDisplaySpaceRect(orientation, args.renderArea.getReqWidth(),
69 args.renderArea.getReqHeight()));
70
71 {
72 std::string name = args.regionSampling ? "RegionSampling" : "ScreenCaptureOutput";
73 if (auto displayDevice = args.renderArea.getDisplayDevice()) {
74 base::StringAppendF(&name, " for %" PRIu64, displayDevice->getId().value);
75 }
76 output->setName(name);
77 }
78 return output;
79 }
80
ScreenCaptureOutput(const RenderArea & renderArea,const compositionengine::Output::ColorProfile & colorProfile,bool regionSampling,bool dimInGammaSpaceForEnhancedScreenshots)81 ScreenCaptureOutput::ScreenCaptureOutput(
82 const RenderArea& renderArea, const compositionengine::Output::ColorProfile& colorProfile,
83 bool regionSampling, bool dimInGammaSpaceForEnhancedScreenshots)
84 : mRenderArea(renderArea),
85 mColorProfile(colorProfile),
86 mRegionSampling(regionSampling),
87 mDimInGammaSpaceForEnhancedScreenshots(dimInGammaSpaceForEnhancedScreenshots) {}
88
updateColorProfile(const compositionengine::CompositionRefreshArgs &)89 void ScreenCaptureOutput::updateColorProfile(const compositionengine::CompositionRefreshArgs&) {
90 auto& outputState = editState();
91 outputState.dataspace = mColorProfile.dataspace;
92 outputState.renderIntent = mColorProfile.renderIntent;
93 }
94
generateClientCompositionDisplaySettings() const95 renderengine::DisplaySettings ScreenCaptureOutput::generateClientCompositionDisplaySettings()
96 const {
97 auto clientCompositionDisplay =
98 compositionengine::impl::Output::generateClientCompositionDisplaySettings();
99 clientCompositionDisplay.clip = mRenderArea.getSourceCrop();
100
101 auto renderIntent = static_cast<ui::RenderIntent>(clientCompositionDisplay.renderIntent);
102 if (mDimInGammaSpaceForEnhancedScreenshots && renderIntent != ui::RenderIntent::COLORIMETRIC &&
103 renderIntent != ui::RenderIntent::TONE_MAP_COLORIMETRIC) {
104 clientCompositionDisplay.dimmingStage =
105 aidl::android::hardware::graphics::composer3::DimmingStage::GAMMA_OETF;
106 }
107
108 return clientCompositionDisplay;
109 }
110
111 std::vector<compositionengine::LayerFE::LayerSettings>
generateClientCompositionRequests(bool supportsProtectedContent,ui::Dataspace outputDataspace,std::vector<compositionengine::LayerFE * > & outLayerFEs)112 ScreenCaptureOutput::generateClientCompositionRequests(
113 bool supportsProtectedContent, ui::Dataspace outputDataspace,
114 std::vector<compositionengine::LayerFE*>& outLayerFEs) {
115 auto clientCompositionLayers = compositionengine::impl::Output::
116 generateClientCompositionRequests(supportsProtectedContent, outputDataspace,
117 outLayerFEs);
118
119 if (mRegionSampling) {
120 for (auto& layer : clientCompositionLayers) {
121 layer.backgroundBlurRadius = 0;
122 layer.blurRegions.clear();
123 }
124 }
125
126 if (outputDataspace == ui::Dataspace::BT2020_HLG) {
127 for (auto& layer : clientCompositionLayers) {
128 auto transfer = layer.sourceDataspace & ui::Dataspace::TRANSFER_MASK;
129 if (transfer != static_cast<int32_t>(ui::Dataspace::TRANSFER_HLG) &&
130 transfer != static_cast<int32_t>(ui::Dataspace::TRANSFER_ST2084)) {
131 layer.whitePointNits *= (1000.0f / 203.0f);
132 }
133 }
134 }
135
136 Rect sourceCrop = mRenderArea.getSourceCrop();
137 compositionengine::LayerFE::LayerSettings fillLayer;
138 fillLayer.source.buffer.buffer = nullptr;
139 fillLayer.source.solidColor = half3(0.0f, 0.0f, 0.0f);
140 fillLayer.geometry.boundaries =
141 FloatRect(static_cast<float>(sourceCrop.left), static_cast<float>(sourceCrop.top),
142 static_cast<float>(sourceCrop.right), static_cast<float>(sourceCrop.bottom));
143 fillLayer.alpha = half(RenderArea::getCaptureFillValue(mRenderArea.getCaptureFill()));
144 clientCompositionLayers.insert(clientCompositionLayers.begin(), fillLayer);
145
146 return clientCompositionLayers;
147 }
148
149 } // namespace android
150