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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 "CompositableTransactionParent.h"
#include "CompositableHost.h" // for CompositableParent, etc
#include "CompositorBridgeParent.h" // for CompositorBridgeParent
#include "GLContext.h" // for GLContext
#include "Layers.h" // for Layer
#include "RenderTrace.h" // for RenderTraceInvalidateEnd, etc
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/layers/ContentHost.h" // for ContentHostBase
#include "mozilla/layers/ImageBridgeParent.h" // for ImageBridgeParent
#include "mozilla/layers/LayerManagerComposite.h"
#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor
#include "mozilla/layers/LayersTypes.h" // for MOZ_LAYERS_LOG
#include "mozilla/layers/TextureHost.h" // for TextureHost
#include "mozilla/layers/TextureHostOGL.h" // for TextureHostOGL
#include "mozilla/layers/TiledContentHost.h"
#include "mozilla/layers/PaintedLayerComposite.h"
#include "mozilla/mozalloc.h" // for operator delete
#include "mozilla/Unused.h"
#include "nsDebug.h" // for NS_WARNING, NS_ASSERTION
#include "nsRegion.h" // for nsIntRegion
namespace mozilla {
namespace layers {
class ClientTiledLayerBuffer;
class Compositor;
// This function can in some cases fail and return false without it being a bug.
// This can theoretically happen if the ImageBridge sends frames before
// we created the layer tree. Since we can't enforce that the layer
// tree is already created before ImageBridge operates, there isn't much
// we can do about it, but in practice it is very rare.
// Typically when a tab with a video is dragged from a window to another,
// there can be a short time when the video is still sending frames
// asynchonously while the layer tree is not reconstructed. It's not a
// big deal.
// Note that Layers transactions do not need to call this because they always
// schedule the composition, in LayerManagerComposite::EndTransaction.
static bool
ScheduleComposition(CompositableHost* aCompositable)
{
uint64_t id = aCompositable->GetCompositorID();
if (!id) {
return false;
}
CompositorBridgeParent* cp = CompositorBridgeParent::GetCompositorBridgeParent(id);
if (!cp) {
return false;
}
cp->ScheduleComposition();
return true;
}
bool
CompositableParentManager::ReceiveCompositableUpdate(const CompositableOperation& aEdit,
EditReplyVector& replyv)
{
// Ignore all operations on compositables created on stale compositors. We
// return true because the child is unable to handle errors.
CompositableHost* compositable = CompositableHost::FromIPDLActor(aEdit.compositableParent());
if (compositable->GetCompositor() && !compositable->GetCompositor()->IsValid()) {
return true;
}
switch (aEdit.detail().type()) {
case CompositableOperationDetail::TOpPaintTextureRegion: {
MOZ_LAYERS_LOG(("[ParentSide] Paint PaintedLayer"));
const OpPaintTextureRegion& op = aEdit.detail().get_OpPaintTextureRegion();
Layer* layer = compositable->GetLayer();
if (!layer || layer->GetType() != Layer::TYPE_PAINTED) {
return false;
}
PaintedLayerComposite* thebes = static_cast<PaintedLayerComposite*>(layer);
const ThebesBufferData& bufferData = op.bufferData();
RenderTraceInvalidateStart(thebes, "FF00FF", op.updatedRegion().GetBounds());
nsIntRegion frontUpdatedRegion;
if (!compositable->UpdateThebes(bufferData,
op.updatedRegion(),
thebes->GetValidRegion(),
&frontUpdatedRegion))
{
return false;
}
replyv.push_back(
OpContentBufferSwap(aEdit.compositableParent(), nullptr, frontUpdatedRegion));
RenderTraceInvalidateEnd(thebes, "FF00FF");
break;
}
case CompositableOperationDetail::TOpUseTiledLayerBuffer: {
MOZ_LAYERS_LOG(("[ParentSide] Paint TiledLayerBuffer"));
const OpUseTiledLayerBuffer& op = aEdit.detail().get_OpUseTiledLayerBuffer();
TiledContentHost* tiledHost = compositable->AsTiledContentHost();
NS_ASSERTION(tiledHost, "The compositable is not tiled");
const SurfaceDescriptorTiles& tileDesc = op.tileLayerDescriptor();
bool success = tiledHost->UseTiledLayerBuffer(this, tileDesc);
const InfallibleTArray<TileDescriptor>& tileDescriptors = tileDesc.tiles();
for (size_t i = 0; i < tileDescriptors.Length(); i++) {
const TileDescriptor& tileDesc = tileDescriptors[i];
if (tileDesc.type() != TileDescriptor::TTexturedTileDescriptor) {
continue;
}
const TexturedTileDescriptor& texturedDesc = tileDesc.get_TexturedTileDescriptor();
RefPtr<TextureHost> texture = TextureHost::AsTextureHost(texturedDesc.textureParent());
if (texture) {
texture->SetLastFwdTransactionId(mFwdTransactionId);
// Make sure that each texture was handled by the compositable
// because the recycling logic depends on it.
MOZ_ASSERT(texture->NumCompositableRefs() > 0);
}
if (texturedDesc.textureOnWhite().type() == MaybeTexture::TPTextureParent) {
texture = TextureHost::AsTextureHost(texturedDesc.textureOnWhite().get_PTextureParent());
if (texture) {
texture->SetLastFwdTransactionId(mFwdTransactionId);
// Make sure that each texture was handled by the compositable
// because the recycling logic depends on it.
MOZ_ASSERT(texture->NumCompositableRefs() > 0);
}
}
}
if (!success) {
return false;
}
break;
}
case CompositableOperationDetail::TOpRemoveTexture: {
const OpRemoveTexture& op = aEdit.detail().get_OpRemoveTexture();
RefPtr<TextureHost> tex = TextureHost::AsTextureHost(op.textureParent());
MOZ_ASSERT(tex.get());
compositable->RemoveTextureHost(tex);
break;
}
case CompositableOperationDetail::TOpUseTexture: {
const OpUseTexture& op = aEdit.detail().get_OpUseTexture();
AutoTArray<CompositableHost::TimedTexture,4> textures;
for (auto& timedTexture : op.textures()) {
CompositableHost::TimedTexture* t = textures.AppendElement();
t->mTexture =
TextureHost::AsTextureHost(timedTexture.textureParent());
MOZ_ASSERT(t->mTexture);
t->mTimeStamp = timedTexture.timeStamp();
t->mPictureRect = timedTexture.picture();
t->mFrameID = timedTexture.frameID();
t->mProducerID = timedTexture.producerID();
t->mTexture->DeserializeReadLock(timedTexture.sharedLock(), this);
}
if (textures.Length() > 0) {
compositable->UseTextureHost(textures);
for (auto& timedTexture : op.textures()) {
RefPtr<TextureHost> texture = TextureHost::AsTextureHost(timedTexture.textureParent());
if (texture) {
texture->SetLastFwdTransactionId(mFwdTransactionId);
// Make sure that each texture was handled by the compositable
// because the recycling logic depends on it.
MOZ_ASSERT(texture->NumCompositableRefs() > 0);
}
}
}
if (UsesImageBridge() && compositable->GetLayer()) {
ScheduleComposition(compositable);
}
break;
}
case CompositableOperationDetail::TOpUseComponentAlphaTextures: {
const OpUseComponentAlphaTextures& op = aEdit.detail().get_OpUseComponentAlphaTextures();
RefPtr<TextureHost> texOnBlack = TextureHost::AsTextureHost(op.textureOnBlackParent());
RefPtr<TextureHost> texOnWhite = TextureHost::AsTextureHost(op.textureOnWhiteParent());
texOnBlack->DeserializeReadLock(op.sharedLockBlack(), this);
texOnWhite->DeserializeReadLock(op.sharedLockWhite(), this);
MOZ_ASSERT(texOnBlack && texOnWhite);
compositable->UseComponentAlphaTextures(texOnBlack, texOnWhite);
if (texOnBlack) {
texOnBlack->SetLastFwdTransactionId(mFwdTransactionId);
// Make sure that each texture was handled by the compositable
// because the recycling logic depends on it.
MOZ_ASSERT(texOnBlack->NumCompositableRefs() > 0);
}
if (texOnWhite) {
texOnWhite->SetLastFwdTransactionId(mFwdTransactionId);
// Make sure that each texture was handled by the compositable
// because the recycling logic depends on it.
MOZ_ASSERT(texOnWhite->NumCompositableRefs() > 0);
}
if (UsesImageBridge()) {
ScheduleComposition(compositable);
}
break;
}
default: {
MOZ_ASSERT(false, "bad type");
}
}
return true;
}
void
CompositableParentManager::DestroyActor(const OpDestroy& aOp)
{
switch (aOp.type()) {
case OpDestroy::TPTextureParent: {
auto actor = aOp.get_PTextureParent();
TextureHost::ReceivedDestroy(actor);
break;
}
case OpDestroy::TPCompositableParent: {
auto actor = aOp.get_PCompositableParent();
CompositableHost::ReceivedDestroy(actor);
break;
}
default: {
MOZ_ASSERT(false, "unsupported type");
}
}
}
} // namespace layers
} // namespace mozilla
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