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gecko/gfx/layers/ipc/LayerTransactionParent.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "LayerTransactionParent.h"
#include <vector> // for vector
#include "CompositableHost.h" // for CompositableParent, Get, etc
#include "ImageLayers.h" // for ImageLayer
#include "Layers.h" // for Layer, ContainerLayer, etc
#include "ShadowLayerParent.h" // for ShadowLayerParent
#include "gfx3DMatrix.h" // for gfx3DMatrix
#include "gfxPoint3D.h" // for gfxPoint3D
#include "CompositableTransactionParent.h" // for EditReplyVector
#include "ShadowLayersManager.h" // for ShadowLayersManager
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/gfx/BasePoint3D.h" // for BasePoint3D
#include "mozilla/layers/CanvasLayerComposite.h"
#include "mozilla/layers/ColorLayerComposite.h"
#include "mozilla/layers/Compositor.h" // for Compositor
#include "mozilla/layers/ContainerLayerComposite.h"
#include "mozilla/layers/ImageLayerComposite.h"
#include "mozilla/layers/LayerManagerComposite.h"
#include "mozilla/layers/LayersMessages.h" // for EditReply, etc
#include "mozilla/layers/LayersSurfaces.h" // for PGrallocBufferParent
#include "mozilla/layers/LayersTypes.h" // for MOZ_LAYERS_LOG
#include "mozilla/layers/PCompositableParent.h"
#include "mozilla/layers/PLayerParent.h" // for PLayerParent
#include "mozilla/layers/ThebesLayerComposite.h"
#include "mozilla/mozalloc.h" // for operator delete, etc
#include "nsCoord.h" // for NSAppUnitsToFloatPixels
#include "nsDebug.h" // for NS_RUNTIMEABORT
#include "nsISupportsImpl.h" // for Layer::Release, etc
#include "nsLayoutUtils.h" // for nsLayoutUtils
#include "nsMathUtils.h" // for NS_round
#include "nsPoint.h" // for nsPoint
#include "nsTArray.h" // for nsTArray, nsTArray_Impl, etc
#include "nsTraceRefcnt.h" // for MOZ_COUNT_CTOR, etc
#include "GeckoProfiler.h"
typedef std::vector<mozilla::layers::EditReply> EditReplyVector;
using mozilla::layout::RenderFrameParent;
namespace mozilla {
namespace layers {
class PGrallocBufferParent;
//--------------------------------------------------
// Convenience accessors
static ShadowLayerParent*
cast(const PLayerParent* in)
{
return const_cast<ShadowLayerParent*>(
static_cast<const ShadowLayerParent*>(in));
}
static CompositableParent*
cast(const PCompositableParent* in)
{
return const_cast<CompositableParent*>(
static_cast<const CompositableParent*>(in));
}
template<class OpCreateT>
static ShadowLayerParent*
AsLayerComposite(const OpCreateT& op)
{
return cast(op.layerParent());
}
static ShadowLayerParent*
AsLayerComposite(const OpSetRoot& op)
{
return cast(op.rootParent());
}
static ShadowLayerParent*
ShadowContainer(const OpInsertAfter& op)
{
return cast(op.containerParent());
}
static ShadowLayerParent*
ShadowChild(const OpInsertAfter& op)
{
return cast(op.childLayerParent());
}
static ShadowLayerParent*
ShadowAfter(const OpInsertAfter& op)
{
return cast(op.afterParent());
}
static ShadowLayerParent*
ShadowContainer(const OpAppendChild& op)
{
return cast(op.containerParent());
}
static ShadowLayerParent*
ShadowChild(const OpAppendChild& op)
{
return cast(op.childLayerParent());
}
static ShadowLayerParent*
ShadowContainer(const OpRemoveChild& op)
{
return cast(op.containerParent());
}
static ShadowLayerParent*
ShadowChild(const OpRemoveChild& op)
{
return cast(op.childLayerParent());
}
static ShadowLayerParent*
ShadowContainer(const OpRepositionChild& op)
{
return cast(op.containerParent());
}
static ShadowLayerParent*
ShadowChild(const OpRepositionChild& op)
{
return cast(op.childLayerParent());
}
static ShadowLayerParent*
ShadowAfter(const OpRepositionChild& op)
{
return cast(op.afterParent());
}
static ShadowLayerParent*
ShadowContainer(const OpRaiseToTopChild& op)
{
return cast(op.containerParent());
}
static ShadowLayerParent*
ShadowChild(const OpRaiseToTopChild& op)
{
return cast(op.childLayerParent());
}
//--------------------------------------------------
// LayerTransactionParent
LayerTransactionParent::LayerTransactionParent(LayerManagerComposite* aManager,
ShadowLayersManager* aLayersManager,
uint64_t aId)
: mLayerManager(aManager)
, mShadowLayersManager(aLayersManager)
, mId(aId)
, mDestroyed(false)
{
MOZ_COUNT_CTOR(LayerTransactionParent);
}
LayerTransactionParent::~LayerTransactionParent()
{
MOZ_COUNT_DTOR(LayerTransactionParent);
}
void
LayerTransactionParent::Destroy()
{
mDestroyed = true;
for (size_t i = 0; i < ManagedPLayerParent().Length(); ++i) {
ShadowLayerParent* slp =
static_cast<ShadowLayerParent*>(ManagedPLayerParent()[i]);
slp->Destroy();
}
}
/* virtual */
bool
LayerTransactionParent::RecvUpdateNoSwap(const InfallibleTArray<Edit>& cset,
const TargetConfig& targetConfig,
const bool& isFirstPaint)
{
return RecvUpdate(cset, targetConfig, isFirstPaint, nullptr);
}
bool
LayerTransactionParent::RecvUpdate(const InfallibleTArray<Edit>& cset,
const TargetConfig& targetConfig,
const bool& isFirstPaint,
InfallibleTArray<EditReply>* reply)
{
profiler_tracing("Paint", "Composite", TRACING_INTERVAL_START);
PROFILER_LABEL("LayerTransactionParent", "RecvUpdate");
#ifdef COMPOSITOR_PERFORMANCE_WARNING
TimeStamp updateStart = TimeStamp::Now();
#endif
MOZ_LAYERS_LOG(("[ParentSide] received txn with %d edits", cset.Length()));
if (mDestroyed || !layer_manager() || layer_manager()->IsDestroyed()) {
return true;
}
EditReplyVector replyv;
layer_manager()->BeginTransactionWithDrawTarget(nullptr);
for (EditArray::index_type i = 0; i < cset.Length(); ++i) {
const Edit& edit = cset[i];
switch (edit.type()) {
// Create* ops
case Edit::TOpCreateThebesLayer: {
MOZ_LAYERS_LOG(("[ParentSide] CreateThebesLayer"));
nsRefPtr<ThebesLayerComposite> layer =
layer_manager()->CreateThebesLayerComposite();
AsLayerComposite(edit.get_OpCreateThebesLayer())->Bind(layer);
break;
}
case Edit::TOpCreateContainerLayer: {
MOZ_LAYERS_LOG(("[ParentSide] CreateContainerLayer"));
nsRefPtr<ContainerLayer> layer = layer_manager()->CreateContainerLayerComposite();
AsLayerComposite(edit.get_OpCreateContainerLayer())->Bind(layer);
break;
}
case Edit::TOpCreateImageLayer: {
MOZ_LAYERS_LOG(("[ParentSide] CreateImageLayer"));
nsRefPtr<ImageLayerComposite> layer =
layer_manager()->CreateImageLayerComposite();
AsLayerComposite(edit.get_OpCreateImageLayer())->Bind(layer);
break;
}
case Edit::TOpCreateColorLayer: {
MOZ_LAYERS_LOG(("[ParentSide] CreateColorLayer"));
nsRefPtr<ColorLayerComposite> layer = layer_manager()->CreateColorLayerComposite();
AsLayerComposite(edit.get_OpCreateColorLayer())->Bind(layer);
break;
}
case Edit::TOpCreateCanvasLayer: {
MOZ_LAYERS_LOG(("[ParentSide] CreateCanvasLayer"));
nsRefPtr<CanvasLayerComposite> layer =
layer_manager()->CreateCanvasLayerComposite();
AsLayerComposite(edit.get_OpCreateCanvasLayer())->Bind(layer);
break;
}
case Edit::TOpCreateRefLayer: {
MOZ_LAYERS_LOG(("[ParentSide] CreateRefLayer"));
nsRefPtr<RefLayerComposite> layer =
layer_manager()->CreateRefLayerComposite();
AsLayerComposite(edit.get_OpCreateRefLayer())->Bind(layer);
break;
}
// Attributes
case Edit::TOpSetLayerAttributes: {
MOZ_LAYERS_LOG(("[ParentSide] SetLayerAttributes"));
const OpSetLayerAttributes& osla = edit.get_OpSetLayerAttributes();
Layer* layer = AsLayerComposite(osla)->AsLayer();
const LayerAttributes& attrs = osla.attrs();
const CommonLayerAttributes& common = attrs.common();
layer->SetVisibleRegion(common.visibleRegion());
layer->SetContentFlags(common.contentFlags());
layer->SetOpacity(common.opacity());
layer->SetClipRect(common.useClipRect() ? &common.clipRect() : nullptr);
layer->SetBaseTransform(common.transform().value());
layer->SetPostScale(common.postXScale(), common.postYScale());
layer->SetIsFixedPosition(common.isFixedPosition());
layer->SetFixedPositionAnchor(common.fixedPositionAnchor());
layer->SetFixedPositionMargins(common.fixedPositionMargin());
if (common.isStickyPosition()) {
layer->SetStickyPositionData(common.stickyScrollContainerId(),
common.stickyScrollRangeOuter(),
common.stickyScrollRangeInner());
}
if (PLayerParent* maskLayer = common.maskLayerParent()) {
layer->SetMaskLayer(cast(maskLayer)->AsLayer());
} else {
layer->SetMaskLayer(nullptr);
}
layer->SetAnimations(common.animations());
layer->SetInvalidRegion(common.invalidRegion());
typedef SpecificLayerAttributes Specific;
const SpecificLayerAttributes& specific = attrs.specific();
switch (specific.type()) {
case Specific::Tnull_t:
break;
case Specific::TThebesLayerAttributes: {
MOZ_LAYERS_LOG(("[ParentSide] thebes layer"));
ThebesLayerComposite* thebesLayer =
static_cast<ThebesLayerComposite*>(layer);
const ThebesLayerAttributes& attrs =
specific.get_ThebesLayerAttributes();
thebesLayer->SetValidRegion(attrs.validRegion());
break;
}
case Specific::TContainerLayerAttributes: {
MOZ_LAYERS_LOG(("[ParentSide] container layer"));
ContainerLayer* containerLayer =
static_cast<ContainerLayer*>(layer);
const ContainerLayerAttributes& attrs =
specific.get_ContainerLayerAttributes();
containerLayer->SetFrameMetrics(attrs.metrics());
containerLayer->SetPreScale(attrs.preXScale(), attrs.preYScale());
containerLayer->SetInheritedScale(attrs.inheritedXScale(), attrs.inheritedYScale());
break;
}
case Specific::TColorLayerAttributes:
MOZ_LAYERS_LOG(("[ParentSide] color layer"));
static_cast<ColorLayer*>(layer)->SetColor(
specific.get_ColorLayerAttributes().color().value());
static_cast<ColorLayer*>(layer)->SetBounds(
specific.get_ColorLayerAttributes().bounds());
break;
case Specific::TCanvasLayerAttributes:
MOZ_LAYERS_LOG(("[ParentSide] canvas layer"));
static_cast<CanvasLayer*>(layer)->SetFilter(
specific.get_CanvasLayerAttributes().filter());
static_cast<CanvasLayerComposite*>(layer)->SetBounds(
specific.get_CanvasLayerAttributes().bounds());
break;
case Specific::TRefLayerAttributes:
MOZ_LAYERS_LOG(("[ParentSide] ref layer"));
static_cast<RefLayer*>(layer)->SetReferentId(
specific.get_RefLayerAttributes().id());
break;
case Specific::TImageLayerAttributes: {
MOZ_LAYERS_LOG(("[ParentSide] image layer"));
ImageLayer* imageLayer = static_cast<ImageLayer*>(layer);
const ImageLayerAttributes& attrs = specific.get_ImageLayerAttributes();
imageLayer->SetFilter(attrs.filter());
imageLayer->SetScaleToSize(attrs.scaleToSize(), attrs.scaleMode());
break;
}
default:
NS_RUNTIMEABORT("not reached");
}
break;
}
case Edit::TOpSetDiagnosticTypes: {
mLayerManager->GetCompositor()->SetDiagnosticTypes(
edit.get_OpSetDiagnosticTypes().diagnostics());
break;
}
// Tree ops
case Edit::TOpSetRoot: {
MOZ_LAYERS_LOG(("[ParentSide] SetRoot"));
mRoot = AsLayerComposite(edit.get_OpSetRoot())->AsLayer();
break;
}
case Edit::TOpInsertAfter: {
MOZ_LAYERS_LOG(("[ParentSide] InsertAfter"));
const OpInsertAfter& oia = edit.get_OpInsertAfter();
ShadowContainer(oia)->AsContainer()->InsertAfter(
ShadowChild(oia)->AsLayer(), ShadowAfter(oia)->AsLayer());
break;
}
case Edit::TOpAppendChild: {
MOZ_LAYERS_LOG(("[ParentSide] AppendChild"));
const OpAppendChild& oac = edit.get_OpAppendChild();
ShadowContainer(oac)->AsContainer()->InsertAfter(
ShadowChild(oac)->AsLayer(), nullptr);
break;
}
case Edit::TOpRemoveChild: {
MOZ_LAYERS_LOG(("[ParentSide] RemoveChild"));
const OpRemoveChild& orc = edit.get_OpRemoveChild();
Layer* childLayer = ShadowChild(orc)->AsLayer();
ShadowContainer(orc)->AsContainer()->RemoveChild(childLayer);
break;
}
case Edit::TOpRepositionChild: {
MOZ_LAYERS_LOG(("[ParentSide] RepositionChild"));
const OpRepositionChild& orc = edit.get_OpRepositionChild();
ShadowContainer(orc)->AsContainer()->RepositionChild(
ShadowChild(orc)->AsLayer(), ShadowAfter(orc)->AsLayer());
break;
}
case Edit::TOpRaiseToTopChild: {
MOZ_LAYERS_LOG(("[ParentSide] RaiseToTopChild"));
const OpRaiseToTopChild& rtc = edit.get_OpRaiseToTopChild();
ShadowContainer(rtc)->AsContainer()->RepositionChild(
ShadowChild(rtc)->AsLayer(), nullptr);
break;
}
case Edit::TCompositableOperation: {
ReceiveCompositableUpdate(edit.get_CompositableOperation(),
replyv);
break;
}
case Edit::TOpAttachCompositable: {
const OpAttachCompositable& op = edit.get_OpAttachCompositable();
Attach(cast(op.layerParent()), cast(op.compositableParent()), false);
cast(op.compositableParent())->SetCompositorID(
mLayerManager->GetCompositor()->GetCompositorID());
break;
}
case Edit::TOpAttachAsyncCompositable: {
const OpAttachAsyncCompositable& op = edit.get_OpAttachAsyncCompositable();
CompositableParent* compositableParent = CompositableMap::Get(op.containerID());
MOZ_ASSERT(compositableParent, "CompositableParent not found in the map");
Attach(cast(op.layerParent()), compositableParent, true);
compositableParent->SetCompositorID(mLayerManager->GetCompositor()->GetCompositorID());
break;
}
default:
NS_RUNTIMEABORT("not reached");
}
}
layer_manager()->EndTransaction(nullptr, nullptr, LayerManager::END_NO_IMMEDIATE_REDRAW);
if (reply) {
reply->SetCapacity(replyv.size());
if (replyv.size() > 0) {
reply->AppendElements(&replyv.front(), replyv.size());
}
}
// Ensure that any pending operations involving back and front
// buffers have completed, so that neither process stomps on the
// other's buffer contents.
LayerManagerComposite::PlatformSyncBeforeReplyUpdate();
mShadowLayersManager->ShadowLayersUpdated(this, targetConfig, isFirstPaint);
#ifdef COMPOSITOR_PERFORMANCE_WARNING
int compositeTime = (int)(mozilla::TimeStamp::Now() - updateStart).ToMilliseconds();
if (compositeTime > 15) {
printf_stderr("Compositor: Layers update took %i ms (blocking gecko).\n", compositeTime);
}
#endif
return true;
}
bool
LayerTransactionParent::RecvGetOpacity(PLayerParent* aParent,
float* aOpacity)
{
if (mDestroyed || !layer_manager() || layer_manager()->IsDestroyed()) {
return false;
}
*aOpacity = cast(aParent)->AsLayer()->GetLocalOpacity();
return true;
}
bool
LayerTransactionParent::RecvGetTransform(PLayerParent* aParent,
gfx3DMatrix* aTransform)
{
if (mDestroyed || !layer_manager() || layer_manager()->IsDestroyed()) {
return false;
}
// The following code recovers the untranslated transform
// from the shadow transform by undoing the translations in
// AsyncCompositionManager::SampleValue.
Layer* layer = cast(aParent)->AsLayer();
*aTransform = layer->AsLayerComposite()->GetShadowTransform();
if (ContainerLayer* c = layer->AsContainerLayer()) {
aTransform->ScalePost(1.0f/c->GetInheritedXScale(),
1.0f/c->GetInheritedYScale(),
1.0f);
}
float scale = 1;
gfxPoint3D scaledOrigin;
gfxPoint3D transformOrigin;
for (uint32_t i=0; i < layer->GetAnimations().Length(); i++) {
if (layer->GetAnimations()[i].data().type() == AnimationData::TTransformData) {
const TransformData& data = layer->GetAnimations()[i].data().get_TransformData();
scale = data.appUnitsPerDevPixel();
scaledOrigin =
gfxPoint3D(NS_round(NSAppUnitsToFloatPixels(data.origin().x, scale)),
NS_round(NSAppUnitsToFloatPixels(data.origin().y, scale)),
0.0f);
transformOrigin = data.transformOrigin();
break;
}
}
aTransform->Translate(-scaledOrigin);
*aTransform = nsLayoutUtils::ChangeMatrixBasis(-scaledOrigin - transformOrigin, *aTransform);
return true;
}
void
LayerTransactionParent::Attach(ShadowLayerParent* aLayerParent,
CompositableParent* aCompositable,
bool aIsAsyncVideo)
{
LayerComposite* layer = aLayerParent->AsLayer()->AsLayerComposite();
MOZ_ASSERT(layer);
Compositor* compositor
= static_cast<LayerManagerComposite*>(aLayerParent->AsLayer()->Manager())->GetCompositor();
CompositableHost* compositable = aCompositable->GetCompositableHost();
MOZ_ASSERT(compositable);
layer->SetCompositableHost(compositable);
compositable->Attach(aLayerParent->AsLayer(),
compositor,
aIsAsyncVideo
? CompositableHost::ALLOW_REATTACH
| CompositableHost::KEEP_ATTACHED
: CompositableHost::NO_FLAGS);
}
bool
LayerTransactionParent::RecvClearCachedResources()
{
if (mRoot) {
// NB: |mRoot| here is the *child* context's root. In this parent
// context, it's just a subtree root. We need to scope the clear
// of resources to exactly that subtree, so we specify it here.
mLayerManager->ClearCachedResources(mRoot);
}
return true;
}
PGrallocBufferParent*
LayerTransactionParent::AllocPGrallocBufferParent(const gfxIntSize& aSize,
const uint32_t& aFormat,
const uint32_t& aUsage,
MaybeMagicGrallocBufferHandle* aOutHandle)
{
#ifdef MOZ_HAVE_SURFACEDESCRIPTORGRALLOC
return GrallocBufferActor::Create(aSize, aFormat, aUsage, aOutHandle);
#else
NS_RUNTIMEABORT("No gralloc buffers for you");
return nullptr;
#endif
}
bool
LayerTransactionParent::DeallocPGrallocBufferParent(PGrallocBufferParent* actor)
{
#ifdef MOZ_HAVE_SURFACEDESCRIPTORGRALLOC
delete actor;
return true;
#else
NS_RUNTIMEABORT("Um, how did we get here?");
return false;
#endif
}
PLayerParent*
LayerTransactionParent::AllocPLayerParent()
{
return new ShadowLayerParent();
}
bool
LayerTransactionParent::DeallocPLayerParent(PLayerParent* actor)
{
delete actor;
return true;
}
PCompositableParent*
LayerTransactionParent::AllocPCompositableParent(const TextureInfo& aInfo)
{
return new CompositableParent(this, aInfo);
}
bool
LayerTransactionParent::DeallocPCompositableParent(PCompositableParent* actor)
{
delete actor;
return true;
}
} // namespace layers
} // namespace mozilla
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