LayerManager*
PuppetWidget::GetLayerManager(PLayerTransactionChild* aShadowManager,
LayersBackend aBackendHint,
LayerManagerPersistence aPersistence,
bool* aAllowRetaining)
{
if (!mLayerManager) {
// The backend hint is a temporary placeholder until Azure, when
// all content-process layer managers will be BasicLayerManagers.
#if defined(MOZ_ENABLE_D3D10_LAYER)
if (mozilla::layers::LayersBackend::LAYERS_D3D10 == aBackendHint) {
nsRefPtr<LayerManagerD3D10> m = new LayerManagerD3D10(this);
m->AsShadowForwarder()->SetShadowManager(aShadowManager);
if (m->Initialize()) {
mLayerManager = m;
}
}
#endif
if (!mLayerManager) {
mLayerManager = new ClientLayerManager(this);
}
}
ShadowLayerForwarder* lf = mLayerManager->AsShadowForwarder();
if (!lf->HasShadowManager() && aShadowManager) {
lf->SetShadowManager(aShadowManager);
}
if (aAllowRetaining) {
*aAllowRetaining = true;
}
return mLayerManager;
}
bool
TabChild::InitWidget(const nsIntSize& size)
{
NS_ABORT_IF_FALSE(!mWidget && !mRemoteFrame, "CreateWidget twice?");
mWidget = nsIWidget::CreatePuppetWidget(this);
if (!mWidget) {
NS_ERROR("couldn't create fake widget");
return false;
}
mWidget->Create(
nullptr, 0, // no parents
nsIntRect(nsIntPoint(0, 0), size),
nullptr, // HandleWidgetEvent
nullptr // nsDeviceContext
);
LayersBackend be;
uint64_t id;
int32_t maxTextureSize;
RenderFrameChild* remoteFrame =
static_cast<RenderFrameChild*>(SendPRenderFrameConstructor(
&mScrolling, &be, &maxTextureSize, &id));
if (!remoteFrame) {
NS_WARNING("failed to construct RenderFrame");
return false;
}
PLayersChild* shadowManager = nullptr;
if (id != 0) {
// Pushing layers transactions directly to a separate
// compositor context.
shadowManager =
CompositorChild::Get()->SendPLayersConstructor(be, id,
&be,
&maxTextureSize);
} else {
// Pushing transactions to the parent content.
shadowManager = remoteFrame->SendPLayersConstructor();
}
if (!shadowManager) {
NS_WARNING("failed to construct LayersChild");
// This results in |remoteFrame| being deleted.
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
ShadowLayerForwarder* lf =
mWidget->GetLayerManager(shadowManager, be)->AsShadowForwarder();
NS_ABORT_IF_FALSE(lf && lf->HasShadowManager(),
"PuppetWidget should have shadow manager");
lf->SetParentBackendType(be);
lf->SetMaxTextureSize(maxTextureSize);
mRemoteFrame = remoteFrame;
return true;
}
LayerManager*
PuppetWidget::GetLayerManager(PLayerTransactionChild* aShadowManager,
LayersBackend aBackendHint,
LayerManagerPersistence aPersistence)
{
if (!mLayerManager) {
mLayerManager = new ClientLayerManager(this);
}
ShadowLayerForwarder* lf = mLayerManager->AsShadowForwarder();
if (lf && !lf->HasShadowManager() && aShadowManager) {
lf->SetShadowManager(aShadowManager);
}
return mLayerManager;
}
bool
TabChild::InitWidget(const nsIntSize& size)
{
NS_ABORT_IF_FALSE(!mWidget && !mRemoteFrame, "CreateWidget twice?");
mWidget = nsIWidget::CreatePuppetWidget(this);
if (!mWidget) {
NS_ERROR("couldn't create fake widget");
return false;
}
mWidget->Create(
nsnull, 0, // no parents
nsIntRect(nsIntPoint(0, 0), size),
nsnull, // HandleWidgetEvent
nsnull // nsDeviceContext
);
RenderFrameChild* remoteFrame =
static_cast<RenderFrameChild*>(SendPRenderFrameConstructor());
if (!remoteFrame) {
NS_WARNING("failed to construct RenderFrame");
return false;
}
NS_ABORT_IF_FALSE(0 == remoteFrame->ManagedPLayersChild().Length(),
"shouldn't have a shadow manager yet");
LayerManager::LayersBackend be;
PRInt32 maxTextureSize;
PLayersChild* shadowManager = remoteFrame->SendPLayersConstructor(&be, &maxTextureSize);
if (!shadowManager) {
NS_WARNING("failed to construct LayersChild");
// This results in |remoteFrame| being deleted.
PRenderFrameChild::Send__delete__(remoteFrame);
return false;
}
ShadowLayerForwarder* lf =
mWidget->GetLayerManager(shadowManager, be)->AsShadowForwarder();
NS_ABORT_IF_FALSE(lf && lf->HasShadowManager(),
"PuppetWidget should have shadow manager");
lf->SetParentBackendType(be);
lf->SetMaxTextureSize(maxTextureSize);
mRemoteFrame = remoteFrame;
return true;
}