bool
ShadowLayerForwarder::EndTransaction(InfallibleTArray<EditReply>* aReplies)
{
SAMPLE_LABEL("ShadowLayerForwarder", "EndTranscation");
RenderTraceScope rendertrace("Foward Transaction", "000091");
NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
NS_ABORT_IF_FALSE(!mTxn->Finished(), "forgot BeginTransaction?");
AutoTxnEnd _(mTxn);
if (mTxn->Empty()) {
MOZ_LAYERS_LOG(("[LayersForwarder] 0-length cset (?), skipping Update()"));
return true;
}
MOZ_LAYERS_LOG(("[LayersForwarder] destroying buffers..."));
for (PRUint32 i = 0; i < mTxn->mDyingBuffers.Length(); ++i) {
DestroySharedSurface(&mTxn->mDyingBuffers[i]);
}
MOZ_LAYERS_LOG(("[LayersForwarder] building transaction..."));
// We purposely add attribute-change ops to the final changeset
// before we add paint ops. This allows layers to record the
// attribute changes before new pixels arrive, which can be useful
// for setting up back/front buffers.
RenderTraceScope rendertrace2("Foward Transaction", "000092");
for (ShadowableLayerSet::const_iterator it = mTxn->mMutants.begin();
it != mTxn->mMutants.end(); ++it) {
ShadowableLayer* shadow = *it;
Layer* mutant = shadow->AsLayer();
NS_ABORT_IF_FALSE(!!mutant, "unshadowable layer?");
LayerAttributes attrs;
CommonLayerAttributes& common = attrs.common();
common.visibleRegion() = mutant->GetVisibleRegion();
common.transform() = mutant->GetTransform();
common.contentFlags() = mutant->GetContentFlags();
common.opacity() = mutant->GetOpacity();
common.useClipRect() = !!mutant->GetClipRect();
common.clipRect() = (common.useClipRect() ?
*mutant->GetClipRect() : nsIntRect());
common.isFixedPosition() = mutant->GetIsFixedPosition();
if (Layer* maskLayer = mutant->GetMaskLayer()) {
common.maskLayerChild() = Shadow(maskLayer->AsShadowableLayer());
} else {
common.maskLayerChild() = NULL;
}
common.maskLayerParent() = NULL;
attrs.specific() = null_t();
mutant->FillSpecificAttributes(attrs.specific());
mTxn->AddEdit(OpSetLayerAttributes(NULL, Shadow(shadow), attrs));
}
AutoInfallibleTArray<Edit, 10> cset;
size_t nCsets = mTxn->mCset.size() + mTxn->mPaints.size();
NS_ABORT_IF_FALSE(nCsets > 0, "should have bailed by now");
cset.SetCapacity(nCsets);
if (!mTxn->mCset.empty()) {
cset.AppendElements(&mTxn->mCset.front(), mTxn->mCset.size());
}
// Paints after non-paint ops, including attribute changes. See
// above.
if (!mTxn->mPaints.empty()) {
cset.AppendElements(&mTxn->mPaints.front(), mTxn->mPaints.size());
}
MOZ_LAYERS_LOG(("[LayersForwarder] syncing before send..."));
PlatformSyncBeforeUpdate();
if (mTxn->mSwapRequired) {
MOZ_LAYERS_LOG(("[LayersForwarder] sending transaction..."));
RenderTraceScope rendertrace3("Forward Transaction", "000093");
if (!mShadowManager->SendUpdate(cset, mIsFirstPaint, aReplies)) {
MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
return false;
}
} else {
// If we don't require a swap we can call SendUpdateNoSwap which
// assumes that aReplies is empty (DEBUG assertion)
MOZ_LAYERS_LOG(("[LayersForwarder] sending no swap transaction..."));
RenderTraceScope rendertrace3("Forward NoSwap Transaction", "000093");
if (!mShadowManager->SendUpdateNoSwap(cset, mIsFirstPaint)) {
MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
return false;
}
}
mIsFirstPaint = false;
MOZ_LAYERS_LOG(("[LayersForwarder] ... done"));
return true;
}
PRBool
ShadowLayerForwarder::EndTransaction(InfallibleTArray<EditReply>* aReplies)
{
NS_ABORT_IF_FALSE(HasShadowManager(), "no manager to forward to");
NS_ABORT_IF_FALSE(!mTxn->Finished(), "forgot BeginTransaction?");
AutoTxnEnd _(mTxn);
if (mTxn->Empty()) {
MOZ_LAYERS_LOG(("[LayersForwarder] 0-length cset (?), skipping Update()"));
return PR_TRUE;
}
MOZ_LAYERS_LOG(("[LayersForwarder] destroying buffers..."));
for (PRUint32 i = 0; i < mTxn->mDyingBuffers.Length(); ++i) {
DestroySharedSurface(&mTxn->mDyingBuffers[i]);
}
MOZ_LAYERS_LOG(("[LayersForwarder] building transaction..."));
// We purposely add attribute-change ops to the final changeset
// before we add paint ops. This allows layers to record the
// attribute changes before new pixels arrive, which can be useful
// for setting up back/front buffers.
for (ShadowableLayerSet::const_iterator it = mTxn->mMutants.begin();
it != mTxn->mMutants.end(); ++it) {
ShadowableLayer* shadow = *it;
Layer* mutant = shadow->AsLayer();
NS_ABORT_IF_FALSE(!!mutant, "unshadowable layer?");
LayerAttributes attrs;
CommonLayerAttributes& common = attrs.common();
common.visibleRegion() = mutant->GetVisibleRegion();
common.transform() = mutant->GetTransform();
common.contentFlags() = mutant->GetContentFlags();
common.opacity() = mutant->GetOpacity();
common.useClipRect() = !!mutant->GetClipRect();
common.clipRect() = (common.useClipRect() ?
*mutant->GetClipRect() : nsIntRect());
common.isFixedPosition() = mutant->GetIsFixedPosition();
common.useTileSourceRect() = !!mutant->GetTileSourceRect();
common.tileSourceRect() = (common.useTileSourceRect() ?
*mutant->GetTileSourceRect() : nsIntRect());
attrs.specific() = null_t();
mutant->FillSpecificAttributes(attrs.specific());
mTxn->AddEdit(OpSetLayerAttributes(NULL, Shadow(shadow), attrs));
}
AutoInfallibleTArray<Edit, 10> cset;
size_t nCsets = mTxn->mCset.size() + mTxn->mPaints.size();
NS_ABORT_IF_FALSE(nCsets > 0, "should have bailed by now");
cset.SetCapacity(nCsets);
if (!mTxn->mCset.empty()) {
cset.AppendElements(&mTxn->mCset.front(), mTxn->mCset.size());
}
// Paints after non-paint ops, including attribute changes. See
// above.
if (!mTxn->mPaints.empty()) {
cset.AppendElements(&mTxn->mPaints.front(), mTxn->mPaints.size());
}
MOZ_LAYERS_LOG(("[LayersForwarder] syncing before send..."));
PlatformSyncBeforeUpdate();
MOZ_LAYERS_LOG(("[LayersForwarder] sending transaction..."));
if (!mShadowManager->SendUpdate(cset, aReplies)) {
MOZ_LAYERS_LOG(("[LayersForwarder] WARNING: sending transaction failed!"));
return PR_FALSE;
}
MOZ_LAYERS_LOG(("[LayersForwarder] ... done"));
return PR_TRUE;
}