SF: Introduce new frontend logic
Changes to allow creating layer snapshots using the new
and legacy frontend logic. Switching the logic is controlled
by debug flags. By default SF will continue to use the
legacy logic so there should be no functional changes with
this cl.
Bug: 238781169
Test: presubmit
Change-Id: I33a4de1b8e93fbfe02ac1787d57d6e07a8c3ef26
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
index 6490476..3ed24b2 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
@@ -391,7 +391,9 @@
void LayerSnapshotBuilder::updateSnapshots(const Args& args) {
ATRACE_NAME("UpdateSnapshots");
- if (args.forceUpdate || args.displayChanges) {
+ if (args.parentCrop) {
+ mRootSnapshot.geomLayerBounds = *args.parentCrop;
+ } else if (args.forceUpdate || args.displayChanges) {
mRootSnapshot.geomLayerBounds = getMaxDisplayBounds(args.displays);
}
if (args.displayChanges) {
@@ -618,7 +620,8 @@
RequestedLayerState::Changes::AffectsChildren);
snapshot.changes = parentChanges | requested.changes;
snapshot.isHiddenByPolicyFromParent = parentSnapshot.isHiddenByPolicyFromParent ||
- parentSnapshot.invalidTransform || requested.isHiddenByPolicy();
+ parentSnapshot.invalidTransform || requested.isHiddenByPolicy() ||
+ (args.excludeLayerIds.find(path.id) != args.excludeLayerIds.end());
snapshot.contentDirty = requested.what & layer_state_t::CONTENT_DIRTY;
// TODO(b/238781169) scope down the changes to only buffer updates.
snapshot.hasReadyFrame =
@@ -983,6 +986,20 @@
}
}
+// Visit each visible snapshot in z-order
+void LayerSnapshotBuilder::forEachVisibleSnapshot(const ConstVisitor& visitor,
+ const LayerHierarchy& root) const {
+ root.traverseInZOrder(
+ [this, visitor](const LayerHierarchy&,
+ const LayerHierarchy::TraversalPath& traversalPath) -> bool {
+ LayerSnapshot* snapshot = getSnapshot(traversalPath);
+ if (snapshot && snapshot->isVisible) {
+ visitor(*snapshot);
+ }
+ return true;
+ });
+}
+
void LayerSnapshotBuilder::forEachVisibleSnapshot(const Visitor& visitor) {
for (int i = 0; i < mNumInterestingSnapshots; i++) {
std::unique_ptr<LayerSnapshot>& snapshot = mSnapshots.at((size_t)i);