void
CrossProcessCompositorParent::ShadowLayersUpdated(
LayerTransactionParent* aLayerTree,
const uint64_t& aTransactionId,
const TargetConfig& aTargetConfig,
bool aIsFirstPaint,
bool aScheduleComposite,
uint32_t aPaintSequenceNumber)
{
uint64_t id = aLayerTree->GetId();
MOZ_ASSERT(id != 0);
const CompositorParent::LayerTreeState* state = CompositorParent::GetIndirectShadowTree(id);
if (!state) {
return;
}
MOZ_ASSERT(state->mParent);
state->mParent->ScheduleRotationOnCompositorThread(aTargetConfig, aIsFirstPaint);
Layer* shadowRoot = aLayerTree->GetRoot();
if (shadowRoot) {
SetShadowProperties(shadowRoot);
}
UpdateIndirectTree(id, shadowRoot, aTargetConfig);
state->mParent->NotifyShadowTreeTransaction(id, aIsFirstPaint, aScheduleComposite,
aPaintSequenceNumber);
aLayerTree->SetPendingTransactionId(aTransactionId);
}
void
CompositorParent::ShadowLayersUpdated(LayerTransactionParent* aLayerTree,
const uint64_t& aTransactionId,
const TargetConfig& aTargetConfig,
bool aIsFirstPaint,
bool aScheduleComposite,
uint32_t aPaintSequenceNumber)
{
ScheduleRotationOnCompositorThread(aTargetConfig, aIsFirstPaint);
// Instruct the LayerManager to update its render bounds now. Since all the orientation
// change, dimension change would be done at the stage, update the size here is free of
// race condition.
mLayerManager->UpdateRenderBounds(aTargetConfig.clientBounds());
mLayerManager->SetRegionToClear(aTargetConfig.clearRegion());
mCompositionManager->Updated(aIsFirstPaint, aTargetConfig);
Layer* root = aLayerTree->GetRoot();
mLayerManager->SetRoot(root);
if (mApzcTreeManager) {
AutoResolveRefLayers resolve(mCompositionManager);
mApzcTreeManager->UpdatePanZoomControllerTree(this, root, aIsFirstPaint,
mRootLayerTreeID, aPaintSequenceNumber);
}
MOZ_ASSERT(aTransactionId > mPendingTransaction);
mPendingTransaction = aTransactionId;
if (root) {
SetShadowProperties(root);
}
if (aScheduleComposite) {
ScheduleComposition();
if (mPaused) {
DidComposite();
}
// When testing we synchronously update the shadow tree with the animated
// values to avoid race conditions when calling GetAnimationTransform etc.
// (since the above SetShadowProperties will remove animation effects).
// However, we only do this update when a composite operation is already
// scheduled in order to better match the behavior under regular sampling
// conditions.
if (mIsTesting && root && mCurrentCompositeTask) {
AutoResolveRefLayers resolve(mCompositionManager);
bool requestNextFrame =
mCompositionManager->TransformShadowTree(mTestTime);
if (!requestNextFrame) {
CancelCurrentCompositeTask();
// Pretend we composited in case someone is wating for this event.
DidComposite();
}
}
}
mLayerManager->NotifyShadowTreeTransaction();
}
// Go down shadow layer tree, setting properties to match their non-shadow
// counterparts.
static void
SetShadowProperties(Layer* aLayer)
{
// FIXME: Bug 717688 -- Do these updates in ShadowLayersParent::RecvUpdate.
ShadowLayer* shadow = aLayer->AsShadowLayer();
shadow->SetShadowTransform(aLayer->GetTransform());
shadow->SetShadowVisibleRegion(aLayer->GetVisibleRegion());
shadow->SetShadowClipRect(aLayer->GetClipRect());
for (Layer* child = aLayer->GetFirstChild();
child; child = child->GetNextSibling()) {
SetShadowProperties(child);
}
}
void
CompositorParent::ShadowLayersUpdated(bool isFirstPaint)
{
mIsFirstPaint = mIsFirstPaint || isFirstPaint;
mLayersUpdated = true;
const nsTArray<PLayersParent*>& shadowParents = ManagedPLayersParent();
NS_ABORT_IF_FALSE(shadowParents.Length() <= 1,
"can only support at most 1 ShadowLayersParent");
if (shadowParents.Length()) {
Layer* root = static_cast<ShadowLayersParent*>(shadowParents[0])->GetRoot();
mLayerManager->SetRoot(root);
SetShadowProperties(root);
}
ScheduleComposition();
}
// Go down the composite layer tree, setting properties to match their
// content-side counterparts.
static void
SetShadowProperties(Layer* aLayer)
{
// FIXME: Bug 717688 -- Do these updates in LayerTransactionParent::RecvUpdate.
LayerComposite* layerComposite = aLayer->AsLayerComposite();
// Set the layerComposite's base transform to the layer's base transform.
layerComposite->SetShadowTransform(aLayer->GetBaseTransform());
layerComposite->SetShadowTransformSetByAnimation(false);
layerComposite->SetShadowVisibleRegion(aLayer->GetVisibleRegion());
layerComposite->SetShadowClipRect(aLayer->GetClipRect());
layerComposite->SetShadowOpacity(aLayer->GetOpacity());
for (Layer* child = aLayer->GetFirstChild();
child; child = child->GetNextSibling()) {
SetShadowProperties(child);
}
}
// Do a breadth-first search to find the first layer in the tree that is
// scrollable.
Layer*
CompositorParent::GetPrimaryScrollableLayer()
{
Layer* root = mLayerManager->GetRoot();
// FIXME: We're currently getting passed layers that are not part of our content, but
// we are drawing them anyway. This is causing severe rendering corruption to our background
// and checkerboarding. The real fix here is to assert that we don't have any useless layers
// and ensure that layout isn't giving us any. This is being tracked in bug 728284.
// For now just clip them to the empty rect so we don't draw them.
Layer* discardLayer = root->GetFirstChild();
while (discardLayer) {
if (!discardLayer->AsContainerLayer()) {
discardLayer->IntersectClipRect(nsIntRect());
SetShadowProperties(discardLayer);
}
discardLayer = discardLayer->GetNextSibling();
}
nsTArray<Layer*> queue;
queue.AppendElement(root);
while (queue.Length()) {
ContainerLayer* containerLayer = queue[0]->AsContainerLayer();
queue.RemoveElementAt(0);
if (!containerLayer) {
continue;
}
const FrameMetrics& frameMetrics = containerLayer->GetFrameMetrics();
if (frameMetrics.IsScrollable()) {
return containerLayer;
}
Layer* child = containerLayer->GetFirstChild();
while (child) {
queue.AppendElement(child);
child = child->GetNextSibling();
}
}
return root;
}
