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-rw-r--r--services/surfaceflinger/RegionSamplingThread.cpp10
-rw-r--r--services/surfaceflinger/SurfaceFlinger.cpp138
-rw-r--r--services/surfaceflinger/SurfaceFlinger.h31
-rw-r--r--services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h8
4 files changed, 92 insertions, 95 deletions
diff --git a/services/surfaceflinger/RegionSamplingThread.cpp b/services/surfaceflinger/RegionSamplingThread.cpp
index 1c4a11a9fa..514adac20c 100644
--- a/services/surfaceflinger/RegionSamplingThread.cpp
+++ b/services/surfaceflinger/RegionSamplingThread.cpp
@@ -356,12 +356,10 @@ void RegionSamplingThread::captureSample() {
screenshotArgs.seamlessTransition = false;
std::vector<std::pair<Layer*, sp<LayerFE>>> layers;
- auto displayState =
- mFlinger.getSnapshotsFromMainThread(screenshotArgs, getLayerSnapshotsFn, layers);
- FenceResult fenceResult =
- mFlinger.captureScreenshot(screenshotArgs, buffer, kRegionSampling, kGrayscale,
- kIsProtected, nullptr, displayState, layers)
- .get();
+ mFlinger.getSnapshotsFromMainThread(screenshotArgs, getLayerSnapshotsFn, layers);
+ FenceResult fenceResult = mFlinger.captureScreenshot(screenshotArgs, buffer, kRegionSampling,
+ kGrayscale, kIsProtected, nullptr, layers)
+ .get();
if (fenceResult.ok()) {
fenceResult.value()->waitForever(LOG_TAG);
}
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 11633908c9..6bc3aadf76 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -7196,14 +7196,13 @@ status_t SurfaceFlinger::setSchedAttr(bool enabled) {
namespace {
-ui::Dataspace pickBestDataspace(ui::Dataspace requestedDataspace,
- const compositionengine::impl::OutputCompositionState& state,
+ui::Dataspace pickBestDataspace(ui::Dataspace requestedDataspace, ui::ColorMode colorMode,
bool capturingHdrLayers, bool hintForSeamlessTransition) {
if (requestedDataspace != ui::Dataspace::UNKNOWN) {
return requestedDataspace;
}
- const auto dataspaceForColorMode = ui::pickDataspaceFor(state.colorMode);
+ const auto dataspaceForColorMode = ui::pickDataspaceFor(colorMode);
// TODO: Enable once HDR screenshots are ready.
if constexpr (/* DISABLES CODE */ (false)) {
@@ -7515,11 +7514,11 @@ bool SurfaceFlinger::layersHasProtectedLayer(
return protectedLayerFound;
}
-// Getting layer snapshots and display should take place on main thread.
-// Accessing display requires mStateLock, and contention for this lock
-// is reduced when grabbed from the main thread, thus also reducing
-// risk of deadlocks.
-std::optional<SurfaceFlinger::OutputCompositionState> SurfaceFlinger::getSnapshotsFromMainThread(
+// Getting layer snapshots and accessing display state should take place on
+// main thread. Accessing display requires mStateLock, and contention for
+// this lock is reduced when grabbed from the main thread, thus also reducing
+// risk of deadlocks. Returns false if no display is found.
+bool SurfaceFlinger::getSnapshotsFromMainThread(
ScreenshotArgs& args, GetLayerSnapshotsFunction getLayerSnapshotsFn,
std::vector<std::pair<Layer*, sp<LayerFE>>>& layers) {
return mScheduler
@@ -7559,8 +7558,8 @@ void SurfaceFlinger::captureScreenCommon(ScreenshotArgs& args,
}
std::vector<std::pair<Layer*, sp<LayerFE>>> layers;
- auto displayState = getSnapshotsFromMainThread(args, getLayerSnapshotsFn, layers);
- if (!displayState) {
+ bool hasDisplayState = getSnapshotsFromMainThread(args, getLayerSnapshotsFn, layers);
+ if (!hasDisplayState) {
ALOGD("Display state not found");
invokeScreenCaptureError(NO_MEMORY, captureListener);
}
@@ -7637,12 +7636,13 @@ void SurfaceFlinger::captureScreenCommon(ScreenshotArgs& args,
auto futureFence =
captureScreenshot(args, texture, false /* regionSampling */, grayscale, isProtected,
- captureListener, displayState, layers, hdrTexture, gainmapTexture);
+ captureListener, layers, hdrTexture, gainmapTexture);
futureFence.get();
}
-std::optional<SurfaceFlinger::OutputCompositionState> SurfaceFlinger::getDisplayStateOnMainThread(
- ScreenshotArgs& args) {
+// Returns true if display is found and args was populated with display state
+// data. Otherwise, returns false.
+bool SurfaceFlinger::getDisplayStateOnMainThread(ScreenshotArgs& args) {
sp<const DisplayDevice> display = nullptr;
{
Mutex::Autolock lock(mStateLock);
@@ -7677,49 +7677,49 @@ std::optional<SurfaceFlinger::OutputCompositionState> SurfaceFlinger::getDisplay
}
if (display != nullptr) {
- return std::optional{display->getCompositionDisplay()->getState()};
+ const auto& state = display->getCompositionDisplay()->getState();
+ args.displayBrightnessNits = state.displayBrightnessNits;
+ args.sdrWhitePointNits = state.sdrWhitePointNits;
+ args.renderIntent = state.renderIntent;
+ args.colorMode = state.colorMode;
+ return true;
}
}
- return std::nullopt;
+ return false;
}
ftl::SharedFuture<FenceResult> SurfaceFlinger::captureScreenshot(
- const ScreenshotArgs& args, const std::shared_ptr<renderengine::ExternalTexture>& buffer,
+ ScreenshotArgs& args, const std::shared_ptr<renderengine::ExternalTexture>& buffer,
bool regionSampling, bool grayscale, bool isProtected,
const sp<IScreenCaptureListener>& captureListener,
- const std::optional<OutputCompositionState>& displayState,
const std::vector<std::pair<Layer*, sp<LayerFE>>>& layers,
const std::shared_ptr<renderengine::ExternalTexture>& hdrBuffer,
const std::shared_ptr<renderengine::ExternalTexture>& gainmapBuffer) {
SFTRACE_CALL();
ScreenCaptureResults captureResults;
-
- float displayBrightnessNits = displayState.value().displayBrightnessNits;
- float sdrWhitePointNits = displayState.value().sdrWhitePointNits;
-
ftl::SharedFuture<FenceResult> renderFuture;
+ float hdrSdrRatio = args.displayBrightnessNits / args.sdrWhitePointNits;
+
if (hdrBuffer && gainmapBuffer) {
ftl::SharedFuture<FenceResult> hdrRenderFuture =
renderScreenImpl(args, hdrBuffer, regionSampling, grayscale, isProtected,
- captureResults, displayState, layers);
+ captureResults, layers);
captureResults.buffer = buffer->getBuffer();
captureResults.optionalGainMap = gainmapBuffer->getBuffer();
renderFuture =
ftl::Future(std::move(hdrRenderFuture))
- .then([&, displayBrightnessNits, sdrWhitePointNits,
- dataspace = captureResults.capturedDataspace, buffer, hdrBuffer,
- gainmapBuffer](FenceResult fenceResult) -> FenceResult {
+ .then([&, hdrSdrRatio, dataspace = captureResults.capturedDataspace, buffer,
+ hdrBuffer, gainmapBuffer](FenceResult fenceResult) -> FenceResult {
if (!fenceResult.ok()) {
return fenceResult;
}
return getRenderEngine()
.tonemapAndDrawGainmap(hdrBuffer, fenceResult.value()->get(),
- displayBrightnessNits /
- sdrWhitePointNits,
+ hdrSdrRatio,
static_cast<ui::Dataspace>(dataspace),
buffer, gainmapBuffer)
.get();
@@ -7727,17 +7727,16 @@ ftl::SharedFuture<FenceResult> SurfaceFlinger::captureScreenshot(
.share();
} else {
renderFuture = renderScreenImpl(args, buffer, regionSampling, grayscale, isProtected,
- captureResults, displayState, layers);
+ captureResults, layers);
}
if (captureListener) {
// Defer blocking on renderFuture back to the Binder thread.
return ftl::Future(std::move(renderFuture))
.then([captureListener, captureResults = std::move(captureResults),
- displayBrightnessNits,
- sdrWhitePointNits](FenceResult fenceResult) mutable -> FenceResult {
+ hdrSdrRatio](FenceResult fenceResult) mutable -> FenceResult {
captureResults.fenceResult = std::move(fenceResult);
- captureResults.hdrSdrRatio = displayBrightnessNits / sdrWhitePointNits;
+ captureResults.hdrSdrRatio = hdrSdrRatio;
captureListener->onScreenCaptureCompleted(captureResults);
return base::unexpected(NO_ERROR);
})
@@ -7747,9 +7746,8 @@ ftl::SharedFuture<FenceResult> SurfaceFlinger::captureScreenshot(
}
ftl::SharedFuture<FenceResult> SurfaceFlinger::renderScreenImpl(
- const ScreenshotArgs& args, const std::shared_ptr<renderengine::ExternalTexture>& buffer,
+ ScreenshotArgs& args, const std::shared_ptr<renderengine::ExternalTexture>& buffer,
bool regionSampling, bool grayscale, bool isProtected, ScreenCaptureResults& captureResults,
- const std::optional<OutputCompositionState>& displayState,
const std::vector<std::pair<Layer*, sp<LayerFE>>>& layers) {
SFTRACE_CALL();
@@ -7763,49 +7761,37 @@ ftl::SharedFuture<FenceResult> SurfaceFlinger::renderScreenImpl(
layerFE->mSnapshot->geomLayerTransform.inverse();
}
- auto capturedBuffer = buffer;
-
- auto renderIntent = RenderIntent::TONE_MAP_COLORIMETRIC;
- auto sdrWhitePointNits = DisplayDevice::sDefaultMaxLumiance;
- auto displayBrightnessNits = DisplayDevice::sDefaultMaxLumiance;
-
- captureResults.capturedDataspace = args.dataspace;
-
const bool enableLocalTonemapping =
FlagManager::getInstance().local_tonemap_screenshots() && !args.seamlessTransition;
- if (displayState) {
- const auto& state = displayState.value();
- captureResults.capturedDataspace =
- pickBestDataspace(args.dataspace, state, captureResults.capturedHdrLayers,
- args.seamlessTransition);
- sdrWhitePointNits = state.sdrWhitePointNits;
-
- if (!captureResults.capturedHdrLayers) {
- displayBrightnessNits = sdrWhitePointNits;
- } else {
- displayBrightnessNits = state.displayBrightnessNits;
- if (!enableLocalTonemapping) {
- // Only clamp the display brightness if this is not a seamless transition.
- // Otherwise for seamless transitions it's important to match the current
- // display state as the buffer will be shown under these same conditions, and we
- // want to avoid any flickers
- if (sdrWhitePointNits > 1.0f && !args.seamlessTransition) {
- // Restrict the amount of HDR "headroom" in the screenshot to avoid
- // over-dimming the SDR portion. 2.0 chosen by experimentation
- constexpr float kMaxScreenshotHeadroom = 2.0f;
- displayBrightnessNits = std::min(sdrWhitePointNits * kMaxScreenshotHeadroom,
- displayBrightnessNits);
- }
- }
- }
+ captureResults.capturedDataspace =
+ pickBestDataspace(args.dataspace, args.colorMode, captureResults.capturedHdrLayers,
+ args.seamlessTransition);
+
+ // Only clamp the display brightness if this is not a seamless transition.
+ // Otherwise for seamless transitions it's important to match the current
+ // display state as the buffer will be shown under these same conditions, and we
+ // want to avoid any flickers.
+ if (captureResults.capturedHdrLayers && !enableLocalTonemapping &&
+ args.sdrWhitePointNits > 1.0f && !args.seamlessTransition) {
+ // Restrict the amount of HDR "headroom" in the screenshot to avoid
+ // over-dimming the SDR portion. 2.0 chosen by experimentation
+ constexpr float kMaxScreenshotHeadroom = 2.0f;
+ // TODO: Aim to update displayBrightnessNits earlier in screenshot
+ // path so ScreenshotArgs can be passed as const
+ args.displayBrightnessNits = std::min(args.sdrWhitePointNits * kMaxScreenshotHeadroom,
+ args.displayBrightnessNits);
+ } else {
+ args.displayBrightnessNits = args.sdrWhitePointNits;
+ }
- // Screenshots leaving the device should be colorimetric
- if (args.dataspace == ui::Dataspace::UNKNOWN && args.seamlessTransition) {
- renderIntent = state.renderIntent;
- }
+ auto renderIntent = RenderIntent::TONE_MAP_COLORIMETRIC;
+ // Screenshots leaving the device should be colorimetric
+ if (args.dataspace == ui::Dataspace::UNKNOWN && args.seamlessTransition) {
+ renderIntent = args.renderIntent;
}
+ auto capturedBuffer = buffer;
captureResults.buffer = capturedBuffer->getBuffer();
ui::LayerStack layerStack{ui::DEFAULT_LAYER_STACK};
@@ -7815,8 +7801,7 @@ ftl::SharedFuture<FenceResult> SurfaceFlinger::renderScreenImpl(
}
auto present = [this, buffer = capturedBuffer, dataspace = captureResults.capturedDataspace,
- sdrWhitePointNits, displayBrightnessNits, grayscale, isProtected, layers,
- layerStack, regionSampling, args, renderIntent,
+ grayscale, isProtected, layers, layerStack, regionSampling, args, renderIntent,
enableLocalTonemapping]() -> FenceResult {
std::unique_ptr<compositionengine::CompositionEngine> compositionEngine =
mFactory.createCompositionEngine();
@@ -7842,9 +7827,10 @@ ftl::SharedFuture<FenceResult> SurfaceFlinger::renderScreenImpl(
if (enableLocalTonemapping) {
// Boost the whole scene so that SDR white is at 1.0 while still communicating the hdr
// sdr ratio via display brightness / sdrWhite nits.
- targetBrightness = sdrWhitePointNits / displayBrightnessNits;
+ targetBrightness = args.sdrWhitePointNits / args.displayBrightnessNits;
} else if (dataspace == ui::Dataspace::BT2020_HLG) {
- const float maxBrightnessNits = displayBrightnessNits / sdrWhitePointNits * 203;
+ const float maxBrightnessNits =
+ args.displayBrightnessNits / args.sdrWhitePointNits * 203;
// With a low dimming ratio, don't fit the entire curve. Otherwise mixed content
// will appear way too bright.
if (maxBrightnessNits < 1000.f) {
@@ -7870,8 +7856,8 @@ ftl::SharedFuture<FenceResult> SurfaceFlinger::renderScreenImpl(
.buffer = std::move(buffer),
.displayId = args.displayId,
.reqBufferSize = args.reqSize,
- .sdrWhitePointNits = sdrWhitePointNits,
- .displayBrightnessNits = displayBrightnessNits,
+ .sdrWhitePointNits = args.sdrWhitePointNits,
+ .displayBrightnessNits = args.displayBrightnessNits,
.targetBrightness = targetBrightness,
.layerAlpha = layerAlpha,
.regionSampling = regionSampling,
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 935a2da672..3f454ba1b8 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -896,32 +896,41 @@ private:
// If true, the render result may be used for system animations
// that must preserve the exact colors of the display
bool seamlessTransition{false};
+
+ // Current display brightness of the output composition state
+ float displayBrightnessNits{-1.f};
+
+ // SDR white point of the output composition state
+ float sdrWhitePointNits{-1.f};
+
+ // Current active color mode of the output composition state
+ ui::ColorMode colorMode{ui::ColorMode::NATIVE};
+
+ // Current active render intent of the output composition state
+ ui::RenderIntent renderIntent{ui::RenderIntent::COLORIMETRIC};
};
- std::optional<OutputCompositionState> getSnapshotsFromMainThread(
- ScreenshotArgs& args, GetLayerSnapshotsFunction getLayerSnapshotsFn,
- std::vector<std::pair<Layer*, sp<LayerFE>>>& layers);
+ bool getSnapshotsFromMainThread(ScreenshotArgs& args,
+ GetLayerSnapshotsFunction getLayerSnapshotsFn,
+ std::vector<std::pair<Layer*, sp<LayerFE>>>& layers);
void captureScreenCommon(ScreenshotArgs& args, GetLayerSnapshotsFunction, ui::Size bufferSize,
ui::PixelFormat, bool allowProtected, bool grayscale,
const sp<IScreenCaptureListener>&);
- std::optional<OutputCompositionState> getDisplayStateOnMainThread(ScreenshotArgs& args)
- REQUIRES(kMainThreadContext);
+ bool getDisplayStateOnMainThread(ScreenshotArgs& args) REQUIRES(kMainThreadContext);
ftl::SharedFuture<FenceResult> captureScreenshot(
- const ScreenshotArgs& args,
- const std::shared_ptr<renderengine::ExternalTexture>& buffer, bool regionSampling,
- bool grayscale, bool isProtected, const sp<IScreenCaptureListener>& captureListener,
- const std::optional<OutputCompositionState>& displayState,
+ ScreenshotArgs& args, const std::shared_ptr<renderengine::ExternalTexture>& buffer,
+ bool regionSampling, bool grayscale, bool isProtected,
+ const sp<IScreenCaptureListener>& captureListener,
const std::vector<std::pair<Layer*, sp<LayerFE>>>& layers,
const std::shared_ptr<renderengine::ExternalTexture>& hdrBuffer = nullptr,
const std::shared_ptr<renderengine::ExternalTexture>& gainmapBuffer = nullptr);
ftl::SharedFuture<FenceResult> renderScreenImpl(
- const ScreenshotArgs& args, const std::shared_ptr<renderengine::ExternalTexture>&,
+ ScreenshotArgs& args, const std::shared_ptr<renderengine::ExternalTexture>&,
bool regionSampling, bool grayscale, bool isProtected, ScreenCaptureResults&,
- const std::optional<OutputCompositionState>& displayState,
const std::vector<std::pair<Layer*, sp<LayerFE>>>& layers);
void readPersistentProperties();
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index 9a2e254ad9..41f2b6e5c0 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -469,7 +469,7 @@ public:
ftl::FakeGuard guard(kMainThreadContext);
ScreenCaptureResults captureResults;
- auto displayState = std::optional{display->getCompositionDisplay()->getState()};
+ const auto& state = display->getCompositionDisplay()->getState();
auto layers = getLayerSnapshotsFn();
SurfaceFlinger::ScreenshotArgs screenshotArgs;
@@ -480,10 +480,14 @@ public:
screenshotArgs.dataspace = dataspace;
screenshotArgs.isSecure = isSecure;
screenshotArgs.seamlessTransition = seamlessTransition;
+ screenshotArgs.displayBrightnessNits = state.displayBrightnessNits;
+ screenshotArgs.sdrWhitePointNits = state.sdrWhitePointNits;
+ screenshotArgs.renderIntent = state.renderIntent;
+ screenshotArgs.colorMode = state.colorMode;
return mFlinger->renderScreenImpl(screenshotArgs, buffer, regionSampling,
false /* grayscale */, false /* isProtected */,
- captureResults, displayState, layers);
+ captureResults, layers);
}
auto getLayerSnapshotsForScreenshotsFn(ui::LayerStack layerStack, uint32_t uid) {
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-10-21 19:40:37 +0000