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 #include "ui/Rotation.h"
20
21 #include <compositionengine/CompositionEngine.h>
22 #include <compositionengine/DisplayColorProfileCreationArgs.h>
23 #include <compositionengine/impl/DisplayColorProfile.h>
24 #include <ui/Rotation.h>
25
26 namespace android {
27
createScreenCaptureOutput(ScreenCaptureOutputArgs args)28 std::shared_ptr<ScreenCaptureOutput> createScreenCaptureOutput(ScreenCaptureOutputArgs args) {
29 std::shared_ptr<ScreenCaptureOutput> output = compositionengine::impl::createOutputTemplated<
30 ScreenCaptureOutput, compositionengine::CompositionEngine, const RenderArea&,
31 const compositionengine::Output::ColorProfile&,
32 bool>(args.compositionEngine, args.renderArea, args.colorProfile, args.regionSampling,
33 args.dimInGammaSpaceForEnhancedScreenshots, args.enableLocalTonemapping);
34 output->editState().isSecure = args.renderArea.isSecure();
35 output->editState().isProtected = args.isProtected;
36 output->setCompositionEnabled(true);
37 output->setLayerFilter({args.layerStack});
38 output->setRenderSurface(std::make_unique<ScreenCaptureRenderSurface>(std::move(args.buffer)));
39 output->setDisplayBrightness(args.sdrWhitePointNits, args.displayBrightnessNits);
40 output->editState().clientTargetBrightness = args.targetBrightness;
41 output->editState().treat170mAsSrgb = args.treat170mAsSrgb;
42
43 output->setDisplayColorProfile(std::make_unique<compositionengine::impl::DisplayColorProfile>(
44 compositionengine::DisplayColorProfileCreationArgsBuilder()
45 .setHasWideColorGamut(true)
46 .Build()));
47
48 const Rect& sourceCrop = args.renderArea.getSourceCrop();
49 const ui::Rotation orientation = ui::ROTATION_0;
50 output->setDisplaySize({sourceCrop.getWidth(), sourceCrop.getHeight()});
51 output->setProjection(orientation, sourceCrop,
52 {args.renderArea.getReqWidth(), args.renderArea.getReqHeight()});
53
54 {
55 std::string name = args.regionSampling ? "RegionSampling" : "ScreenCaptureOutput";
56 if (auto displayDevice = args.renderArea.getDisplayDevice()) {
57 base::StringAppendF(&name, " for %" PRIu64, displayDevice->getId().value);
58 }
59 output->setName(name);
60 }
61 return output;
62 }
63
ScreenCaptureOutput(const RenderArea & renderArea,const compositionengine::Output::ColorProfile & colorProfile,bool regionSampling,bool dimInGammaSpaceForEnhancedScreenshots,bool enableLocalTonemapping)64 ScreenCaptureOutput::ScreenCaptureOutput(
65 const RenderArea& renderArea, const compositionengine::Output::ColorProfile& colorProfile,
66 bool regionSampling, bool dimInGammaSpaceForEnhancedScreenshots,
67 bool enableLocalTonemapping)
68 : mRenderArea(renderArea),
69 mColorProfile(colorProfile),
70 mRegionSampling(regionSampling),
71 mDimInGammaSpaceForEnhancedScreenshots(dimInGammaSpaceForEnhancedScreenshots),
72 mEnableLocalTonemapping(enableLocalTonemapping) {}
73
updateColorProfile(const compositionengine::CompositionRefreshArgs &)74 void ScreenCaptureOutput::updateColorProfile(const compositionengine::CompositionRefreshArgs&) {
75 auto& outputState = editState();
76 outputState.dataspace = mColorProfile.dataspace;
77 outputState.renderIntent = mColorProfile.renderIntent;
78 }
79
generateClientCompositionDisplaySettings(const std::shared_ptr<renderengine::ExternalTexture> & buffer) const80 renderengine::DisplaySettings ScreenCaptureOutput::generateClientCompositionDisplaySettings(
81 const std::shared_ptr<renderengine::ExternalTexture>& buffer) const {
82 auto clientCompositionDisplay =
83 compositionengine::impl::Output::generateClientCompositionDisplaySettings(buffer);
84 clientCompositionDisplay.clip = mRenderArea.getSourceCrop();
85
86 auto renderIntent = static_cast<ui::RenderIntent>(clientCompositionDisplay.renderIntent);
87 if (mDimInGammaSpaceForEnhancedScreenshots && renderIntent != ui::RenderIntent::COLORIMETRIC &&
88 renderIntent != ui::RenderIntent::TONE_MAP_COLORIMETRIC) {
89 clientCompositionDisplay.dimmingStage =
90 aidl::android::hardware::graphics::composer3::DimmingStage::GAMMA_OETF;
91 }
92
93 if (mEnableLocalTonemapping) {
94 clientCompositionDisplay.tonemapStrategy =
95 renderengine::DisplaySettings::TonemapStrategy::Local;
96 }
97
98 return clientCompositionDisplay;
99 }
100
101 std::vector<compositionengine::LayerFE::LayerSettings>
generateClientCompositionRequests(bool supportsProtectedContent,ui::Dataspace outputDataspace,std::vector<compositionengine::LayerFE * > & outLayerFEs)102 ScreenCaptureOutput::generateClientCompositionRequests(
103 bool supportsProtectedContent, ui::Dataspace outputDataspace,
104 std::vector<compositionengine::LayerFE*>& outLayerFEs) {
105 auto clientCompositionLayers = compositionengine::impl::Output::
106 generateClientCompositionRequests(supportsProtectedContent, outputDataspace,
107 outLayerFEs);
108
109 if (mRegionSampling) {
110 for (auto& layer : clientCompositionLayers) {
111 layer.backgroundBlurRadius = 0;
112 layer.blurRegions.clear();
113 }
114 }
115
116 if (outputDataspace == ui::Dataspace::BT2020_HLG) {
117 for (auto& layer : clientCompositionLayers) {
118 auto transfer = layer.sourceDataspace & ui::Dataspace::TRANSFER_MASK;
119 if (transfer != static_cast<int32_t>(ui::Dataspace::TRANSFER_HLG) &&
120 transfer != static_cast<int32_t>(ui::Dataspace::TRANSFER_ST2084)) {
121 layer.whitePointNits *= (1000.0f / 203.0f);
122 }
123 }
124 }
125
126 Rect sourceCrop = mRenderArea.getSourceCrop();
127 compositionengine::LayerFE::LayerSettings fillLayer;
128 fillLayer.source.buffer.buffer = nullptr;
129 fillLayer.source.solidColor = half3(0.0f, 0.0f, 0.0f);
130 fillLayer.geometry.boundaries =
131 FloatRect(static_cast<float>(sourceCrop.left), static_cast<float>(sourceCrop.top),
132 static_cast<float>(sourceCrop.right), static_cast<float>(sourceCrop.bottom));
133 fillLayer.alpha = half(RenderArea::getCaptureFillValue(mRenderArea.getCaptureFill()));
134 clientCompositionLayers.insert(clientCompositionLayers.begin(), fillLayer);
135
136 return clientCompositionLayers;
137 }
138
139 } // namespace android
140