SF: Consolidate layer-to-output filtering
Add ui::LayerFilter for less repetitive CE plumbing. Make ui::LayerStack
a type, and (unlike the alias) use it everywhere. Remove redundant state
in CE's DisplayCreationArgs.
Bug: 182939859
Test: Display cutout is excluded in screenshots.
Test: libcompositionengine_test
Test: libsurfaceflinger_unittest
Test: SurfaceFlinger_test
Test: libgui_test
Change-Id: Ib854d354af7aef7168001c34297e875b71d53622
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 99d9bb3..417bffc 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2295,7 +2295,7 @@
int32_t maxArea = 0;
mDrawingState.traverse([&, compositionDisplay = compositionDisplay](Layer* layer) {
const auto layerFe = layer->getCompositionEngineLayerFE();
- if (layer->isVisible() && compositionDisplay->belongsInOutput(layerFe)) {
+ if (layer->isVisible() && compositionDisplay->includesLayer(layerFe)) {
const Dataspace transfer =
static_cast<Dataspace>(layer->getDataSpace() & Dataspace::TRANSFER_MASK);
const bool isHdr = (transfer == Dataspace::TRANSFER_ST2084 ||
@@ -2426,8 +2426,8 @@
const auto& displayDevice = pair.second;
const auto display = displayDevice->getCompositionDisplay();
for (const auto& layer : mDrawingState.layersSortedByZ) {
- // only consider the layers on the given layer stack
- if (!display->belongsInOutput(layer->getLayerStack(), layer->getPrimaryDisplayOnly())) {
+ // Only consider the layers on this display.
+ if (!display->includesLayer(layer->getOutputFilter())) {
continue;
}
@@ -2732,14 +2732,12 @@
compositionengine::DisplayCreationArgsBuilder builder;
if (const auto& physical = state.physical) {
builder.setId(physical->id);
- builder.setConnectionType(physical->type);
} else {
builder.setId(acquireVirtualDisplay(resolution, pixelFormat));
}
builder.setPixels(resolution);
builder.setIsSecure(state.isSecure);
- builder.setLayerStackId(state.layerStack);
builder.setPowerAdvisor(&mPowerAdvisor);
builder.setName(state.displayName);
auto compositionDisplay = getCompositionEngine().createDisplay(builder.build());
@@ -2942,16 +2940,7 @@
// Update transform hint
if (transactionFlags & (eTransformHintUpdateNeeded | eDisplayTransactionNeeded)) {
- // The transform hint might have changed for some layers
- // (either because a display has changed, or because a layer
- // as changed).
- //
- // Walk through all the layers in currentLayers,
- // and update their transform hint.
- //
- // If a layer is visible only on a single display, then that
- // display is used to calculate the hint, otherwise we use the
- // default display.
+ // Layers and/or displays have changed, so update the transform hint for each layer.
//
// NOTE: we do this here, rather than when presenting the display so that
// the hint is set before we acquire a buffer from the surface texture.
@@ -2962,30 +2951,29 @@
// (soon to become the drawing state list).
//
sp<const DisplayDevice> hintDisplay;
- uint32_t currentlayerStack = 0;
- bool first = true;
+ ui::LayerStack layerStack;
+
mCurrentState.traverse([&](Layer* layer) REQUIRES(mStateLock) {
// NOTE: we rely on the fact that layers are sorted by
// layerStack first (so we don't have to traverse the list
// of displays for every layer).
- uint32_t layerStack = layer->getLayerStack();
- if (first || currentlayerStack != layerStack) {
- currentlayerStack = layerStack;
- // figure out if this layerstack is mirrored
- // (more than one display) if so, pick the default display,
- // if not, pick the only display it's on.
+ if (const auto filter = layer->getOutputFilter(); layerStack != filter.layerStack) {
+ layerStack = filter.layerStack;
hintDisplay = nullptr;
+
+ // Find the display that includes the layer.
for (const auto& [token, display] : mDisplays) {
- if (display->getCompositionDisplay()
- ->belongsInOutput(layer->getLayerStack(),
- layer->getPrimaryDisplayOnly())) {
- if (hintDisplay) {
- hintDisplay = nullptr;
- break;
- } else {
- hintDisplay = display;
- }
+ if (!display->getCompositionDisplay()->includesLayer(filter)) {
+ continue;
}
+
+ // Pick the primary display if another display mirrors the layer.
+ if (hintDisplay) {
+ hintDisplay = nullptr;
+ break;
+ }
+
+ hintDisplay = display;
}
}
@@ -2999,13 +2987,7 @@
hintDisplay = getDefaultDisplayDeviceLocked();
}
- // could be null if there is no display available at all to get
- // the transform hint from.
- if (hintDisplay) {
- layer->updateTransformHint(hintDisplay->getTransformHint());
- }
-
- first = false;
+ layer->updateTransformHint(hintDisplay->getTransformHint());
});
}
@@ -3069,9 +3051,12 @@
mDrawingState.traverseInReverseZOrder([&](Layer* layer) {
if (!layer->needsInputInfo()) return;
- sp<DisplayDevice> display = enablePerWindowInputRotation()
- ? ON_MAIN_THREAD(getDisplayWithInputByLayer(layer))
- : nullptr;
+
+ const DisplayDevice* display = nullptr;
+ if (enablePerWindowInputRotation()) {
+ display = ON_MAIN_THREAD(getDisplayWithInputByLayer(layer)).get();
+ }
+
// When calculating the screen bounds we ignore the transparent region since it may
// result in an unwanted offset.
windowInfos.push_back(layer->fillInputInfo(display));
@@ -3243,7 +3228,7 @@
void SurfaceFlinger::invalidateLayerStack(const sp<const Layer>& layer, const Region& dirty) {
for (const auto& [token, displayDevice] : ON_MAIN_THREAD(mDisplays)) {
auto display = displayDevice->getCompositionDisplay();
- if (display->belongsInOutput(layer->getLayerStack(), layer->getPrimaryDisplayOnly())) {
+ if (display->includesLayer(layer->getOutputFilter())) {
display->editState().dirtyRegion.orSelf(dirty);
}
}
@@ -4464,7 +4449,7 @@
d.what = DisplayState::eDisplayProjectionChanged |
DisplayState::eLayerStackChanged;
d.token = token;
- d.layerStack = 0;
+ d.layerStack = ui::DEFAULT_LAYER_STACK;
d.orientation = ui::ROTATION_0;
d.orientedDisplaySpaceRect.makeInvalid();
d.layerStackSpaceRect.makeInvalid();
@@ -4495,23 +4480,22 @@
}
sp<DisplayDevice> SurfaceFlinger::getDisplayWithInputByLayer(Layer* layer) const {
- sp<DisplayDevice> display;
- for (const auto& pair : mDisplays) {
- const auto& displayDevice = pair.second;
- if (!displayDevice->receivesInput() ||
- !displayDevice->getCompositionDisplay()
- ->belongsInOutput(layer->getLayerStack(), layer->getPrimaryDisplayOnly())) {
+ const auto filter = layer->getOutputFilter();
+ sp<DisplayDevice> inputDisplay;
+
+ for (const auto& [_, display] : mDisplays) {
+ if (!display->receivesInput() || !display->getCompositionDisplay()->includesLayer(filter)) {
continue;
}
// Don't return immediately so that we can log duplicates.
- if (display) {
- ALOGE("Multiple display devices claim to accept input for the same layerstack: %d",
- layer->getLayerStack());
+ if (inputDisplay) {
+ ALOGE("Multiple displays claim to accept input for the same layer stack: %u",
+ filter.layerStack.id);
continue;
}
- display = displayDevice;
+ inputDisplay = display;
}
- return display;
+ return inputDisplay;
}
void SurfaceFlinger::setPowerModeInternal(const sp<DisplayDevice>& display, hal::PowerMode mode) {
@@ -6417,12 +6401,12 @@
// We loop through the first level of layers without traversing,
// as we need to determine which layers belong to the requested display.
for (const auto& layer : mDrawingState.layersSortedByZ) {
- if (!layer->belongsToDisplay(layerStack)) {
+ if (layer->getLayerStack() != layerStack) {
continue;
}
// relative layers are traversed in Layer::traverseInZOrder
layer->traverseInZOrder(LayerVector::StateSet::Drawing, [&](Layer* layer) {
- if (layer->getPrimaryDisplayOnly()) {
+ if (layer->isInternalDisplayOverlay()) {
return;
}
if (!layer->isVisible()) {