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Bug 1137944 - Fire before and after composite events. r=matt.woodrow

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This commit is contained in:
Jim Mathies 2015-09-03 09:55:23 -05:00
parent 416c99cb91
commit 3a7a0cccbe
2 changed files with 109 additions and 34 deletions
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128
gfx/layers/ipc/CompositorParent.cpp
View File

@ -1013,6 +1013,52 @@ CompositorParent::SetShadowProperties(Layer* aLayer)
}
}
// handles firing of before and after composite events through
// an raii type helper class.
class AutoFireCompositorEvents {
public:
explicit AutoFireCompositorEvents(CompositorParent* aTarget, bool aEnabled) :
mCompositor(aTarget),
mStart(TimeStamp::Now()),
mEnabled(aEnabled),
mWillSent(false),
mDidSent(false)
{
}
~AutoFireCompositorEvents()
{
WillComposite();
DidComposite();
}
void WillComposite() {
if (mEnabled && mCompositor && !mWillSent) {
TimeStamp now = TimeStamp::Now();
mCompositor->CompositeEvent(WILL_COMPOSITE, mStart, now);
}
mWillSent = true;
}
void DidComposite() {
if (mEnabled && mCompositor && !mDidSent) {
TimeStamp now = TimeStamp::Now();
mCompositor->CompositeEvent(DID_COMPOSITE, mStart, now);
}
mDidSent = true;
}
void Cancel() {
mEnabled = false;
}
CompositorParent* mCompositor;
TimeStamp mStart;
bool mEnabled;
bool mWillSent;
bool mDidSent;
};
void
CompositorParent::CompositeToTarget(DrawTarget* aTarget, const gfx::IntRect* aRect)
{
@ -1033,9 +1079,10 @@ CompositorParent::CompositeToTarget(DrawTarget* aTarget, const gfx::IntRect* aRe
}
#endif
// Takes care of fireing 'will' and 'did' composite events.
AutoFireCompositorEvents afce(this, !aTarget);
if (!CanComposite()) {
TimeStamp end = TimeStamp::Now();
DidComposite(start, end);
return;
}
@ -1054,10 +1101,13 @@ CompositorParent::CompositeToTarget(DrawTarget* aTarget, const gfx::IntRect* aRe
mForceCompositionTask->Cancel();
mForceCompositionTask = nullptr;
} else {
afce.Cancel();
return;
}
}
afce.WillComposite();
mCompositionManager->ComputeRotation();
TimeStamp time = mIsTesting ? mTestTime : mCompositorScheduler->GetLastComposeTime();
@ -1077,11 +1127,6 @@ CompositorParent::CompositeToTarget(DrawTarget* aTarget, const gfx::IntRect* aRe
mLayerManager->SetDebugOverlayWantsNextFrame(false);
mLayerManager->EndTransaction(time);
if (!aTarget) {
TimeStamp end = TimeStamp::Now();
DidComposite(start, end);
}
// We're not really taking advantage of the stored composite-again-time here.
// We might be able to skip the next few composites altogether. However,
// that's a bit complex to implement and we'll get most of the advantage
@ -1722,9 +1767,10 @@ public:
virtual AsyncCompositionManager* GetCompositionManager(LayerTransactionParent* aParent) override;
void DidComposite(uint64_t aId,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd);
void CompositeEvent(CallbackType aType,
uint64_t aId,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd);
private:
// Private destructor, to discourage deletion outside of Release():
@ -1745,18 +1791,21 @@ private:
};
void
CompositorParent::DidComposite(TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd)
CompositorParent::CompositeEvent(CallbackType aType,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd)
{
if (mPendingTransaction) {
unused << SendDidComposite(0, mPendingTransaction, aCompositeStart, aCompositeEnd);
mPendingTransaction = 0;
}
if (mLayerManager) {
nsTArray<ImageCompositeNotification> notifications;
mLayerManager->ExtractImageCompositeNotifications(&notifications);
if (!notifications.IsEmpty()) {
unused << ImageBridgeParent::NotifyImageComposites(notifications);
if (aType == DID_COMPOSITE) {
if (mPendingTransaction) {
unused << SendDidComposite(0, mPendingTransaction, aCompositeStart, aCompositeEnd);
mPendingTransaction = 0;
}
if (mLayerManager) {
nsTArray<ImageCompositeNotification> notifications;
mLayerManager->ExtractImageCompositeNotifications(&notifications);
if (!notifications.IsEmpty()) {
unused << ImageBridgeParent::NotifyImageComposites(notifications);
}
}
}
@ -1765,8 +1814,8 @@ CompositorParent::DidComposite(TimeStamp& aCompositeStart,
it != sIndirectLayerTrees.end(); it++) {
LayerTreeState* lts = &it->second;
if (lts->mParent == this && lts->mCrossProcessParent) {
static_cast<CrossProcessCompositorParent*>(lts->mCrossProcessParent)->DidComposite(
it->first, aCompositeStart, aCompositeEnd);
static_cast<CrossProcessCompositorParent*>(lts->mCrossProcessParent)->CompositeEvent(
aType, it->first, aCompositeStart, aCompositeEnd);
}
}
}
@ -2040,19 +2089,32 @@ UpdatePluginWindowState(uint64_t aId)
#endif // #if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
void
CrossProcessCompositorParent::DidComposite(uint64_t aId,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd)
CrossProcessCompositorParent::CompositeEvent(CallbackType aType,
uint64_t aId,
TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd)
{
sIndirectLayerTreesLock->AssertCurrentThreadOwns();
LayerTransactionParent *layerTree = sIndirectLayerTrees[aId].mLayerTree;
if (layerTree && layerTree->GetPendingTransactionId()) {
unused << SendDidComposite(aId, layerTree->GetPendingTransactionId(), aCompositeStart, aCompositeEnd);
layerTree->SetPendingTransactionId(0);
}
switch (aType) {
case WILL_COMPOSITE: {
#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
UpdatePluginWindowState(aId);
UpdatePluginWindowState(aId);
#endif
break;
}
case DID_COMPOSITE: {
sIndirectLayerTreesLock->AssertCurrentThreadOwns();
LayerTransactionParent *layerTree = sIndirectLayerTrees[aId].mLayerTree;
if (layerTree && layerTree->GetPendingTransactionId()) {
unused << SendDidComposite(aId, layerTree->GetPendingTransactionId(), aCompositeStart, aCompositeEnd);
layerTree->SetPendingTransactionId(0);
}
break;
}
default:
NS_RUNTIMEABORT("not reached");
}
}
void

15
gfx/layers/ipc/CompositorParent.h
View File

@ -55,6 +55,12 @@ class CompositorParent;
class LayerManagerComposite;
class LayerTransactionParent;
// CompositeEvent related events
enum CallbackType {
WILL_COMPOSITE,
DID_COMPOSITE
};
struct ScopedLayerTreeRegistration
{
ScopedLayerTreeRegistration(uint64_t aLayersId,
@ -439,7 +445,14 @@ protected:
*/
bool CanComposite();
void DidComposite(TimeStamp& aCompositeStart, TimeStamp& aCompositeEnd);
// Fires before and after composite events
void CompositeEvent(CallbackType aType, TimeStamp& aCompositeStart,
TimeStamp& aCompositeEnd);
void DidComposite(TimeStamp& aCompositeStart, TimeStamp& aCompositeEnd) {
CompositeEvent(DID_COMPOSITE, aCompositeStart, aCompositeEnd);
}
friend class AutoFireCompositorEvents;
nsRefPtr<LayerManagerComposite> mLayerManager;
nsRefPtr<Compositor> mCompositor;