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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.
*/
#include "ScreenCaptureOutput.h"
#include "ScreenCaptureRenderSurface.h"
#include "ui/Rotation.h"
#include <compositionengine/CompositionEngine.h>
#include <compositionengine/DisplayColorProfileCreationArgs.h>
#include <compositionengine/impl/DisplayColorProfile.h>
#include <ui/Rotation.h>
namespace android {
std::shared_ptr<ScreenCaptureOutput> createScreenCaptureOutput(ScreenCaptureOutputArgs args) {
std::shared_ptr<ScreenCaptureOutput> output = compositionengine::impl::createOutputTemplated<
ScreenCaptureOutput, compositionengine::CompositionEngine, const RenderArea&,
const compositionengine::Output::ColorProfile&,
bool>(args.compositionEngine, args.renderArea, args.colorProfile, args.regionSampling,
args.dimInGammaSpaceForEnhancedScreenshots);
output->editState().isSecure = args.renderArea.isSecure();
output->editState().isProtected = args.isProtected;
output->setCompositionEnabled(true);
output->setLayerFilter({args.layerStack});
output->setRenderSurface(std::make_unique<ScreenCaptureRenderSurface>(std::move(args.buffer)));
output->setDisplayBrightness(args.sdrWhitePointNits, args.displayBrightnessNits);
output->editState().clientTargetBrightness = args.targetBrightness;
output->editState().treat170mAsSrgb = args.treat170mAsSrgb;
output->setDisplayColorProfile(std::make_unique<compositionengine::impl::DisplayColorProfile>(
compositionengine::DisplayColorProfileCreationArgsBuilder()
.setHasWideColorGamut(true)
.Build()));
const Rect& sourceCrop = args.renderArea.getSourceCrop();
const ui::Rotation orientation = ui::ROTATION_0;
output->setDisplaySize({sourceCrop.getWidth(), sourceCrop.getHeight()});
output->setProjection(orientation, sourceCrop,
{args.renderArea.getReqWidth(), args.renderArea.getReqHeight()});
{
std::string name = args.regionSampling ? "RegionSampling" : "ScreenCaptureOutput";
if (auto displayDevice = args.renderArea.getDisplayDevice()) {
base::StringAppendF(&name, " for %" PRIu64, displayDevice->getId().value);
}
output->setName(name);
}
return output;
}
ScreenCaptureOutput::ScreenCaptureOutput(
const RenderArea& renderArea, const compositionengine::Output::ColorProfile& colorProfile,
bool regionSampling, bool dimInGammaSpaceForEnhancedScreenshots)
: mRenderArea(renderArea),
mColorProfile(colorProfile),
mRegionSampling(regionSampling),
mDimInGammaSpaceForEnhancedScreenshots(dimInGammaSpaceForEnhancedScreenshots) {}
void ScreenCaptureOutput::updateColorProfile(const compositionengine::CompositionRefreshArgs&) {
auto& outputState = editState();
outputState.dataspace = mColorProfile.dataspace;
outputState.renderIntent = mColorProfile.renderIntent;
}
renderengine::DisplaySettings ScreenCaptureOutput::generateClientCompositionDisplaySettings(
const std::shared_ptr<renderengine::ExternalTexture>& buffer) const {
auto clientCompositionDisplay =
compositionengine::impl::Output::generateClientCompositionDisplaySettings(buffer);
clientCompositionDisplay.clip = mRenderArea.getSourceCrop();
auto renderIntent = static_cast<ui::RenderIntent>(clientCompositionDisplay.renderIntent);
if (mDimInGammaSpaceForEnhancedScreenshots && renderIntent != ui::RenderIntent::COLORIMETRIC &&
renderIntent != ui::RenderIntent::TONE_MAP_COLORIMETRIC) {
clientCompositionDisplay.dimmingStage =
aidl::android::hardware::graphics::composer3::DimmingStage::GAMMA_OETF;
}
return clientCompositionDisplay;
}
std::vector<compositionengine::LayerFE::LayerSettings>
ScreenCaptureOutput::generateClientCompositionRequests(
bool supportsProtectedContent, ui::Dataspace outputDataspace,
std::vector<compositionengine::LayerFE*>& outLayerFEs) {
auto clientCompositionLayers = compositionengine::impl::Output::
generateClientCompositionRequests(supportsProtectedContent, outputDataspace,
outLayerFEs);
if (mRegionSampling) {
for (auto& layer : clientCompositionLayers) {
layer.backgroundBlurRadius = 0;
layer.blurRegions.clear();
}
}
if (outputDataspace == ui::Dataspace::BT2020_HLG) {
for (auto& layer : clientCompositionLayers) {
auto transfer = layer.sourceDataspace & ui::Dataspace::TRANSFER_MASK;
if (transfer != static_cast<int32_t>(ui::Dataspace::TRANSFER_HLG) &&
transfer != static_cast<int32_t>(ui::Dataspace::TRANSFER_ST2084)) {
layer.whitePointNits *= (1000.0f / 203.0f);
}
}
}
Rect sourceCrop = mRenderArea.getSourceCrop();
compositionengine::LayerFE::LayerSettings fillLayer;
fillLayer.source.buffer.buffer = nullptr;
fillLayer.source.solidColor = half3(0.0f, 0.0f, 0.0f);
fillLayer.geometry.boundaries =
FloatRect(static_cast<float>(sourceCrop.left), static_cast<float>(sourceCrop.top),
static_cast<float>(sourceCrop.right), static_cast<float>(sourceCrop.bottom));
fillLayer.alpha = half(RenderArea::getCaptureFillValue(mRenderArea.getCaptureFill()));
clientCompositionLayers.insert(clientCompositionLayers.begin(), fillLayer);
return clientCompositionLayers;
}
} // namespace android
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