void
WebRenderPaintedLayer::CreateWebRenderDisplayList(wr::DisplayListBuilder& aBuilder,
const StackingContextHelper& aSc)
{
ScrollingLayersHelper scroller(this, aBuilder, aSc);
StackingContextHelper sc(aSc, aBuilder, this);
LayerRect rect = Bounds();
DumpLayerInfo("PaintedLayer", rect);
LayerRect clipRect = ClipRect().valueOr(rect);
Maybe<WrImageMask> mask = BuildWrMaskLayer(&sc);
WrClipRegionToken clip = aBuilder.PushClipRegion(
sc.ToRelativeWrRect(clipRect),
mask.ptrOr(nullptr));
WrImageKey key = GetImageKey();
WrBridge()->AddWebRenderParentCommand(OpAddExternalImage(mExternalImageId.value(), key));
WrManager()->AddImageKeyForDiscard(key);
aBuilder.PushImage(sc.ToRelativeWrRect(rect), clip, wr::ImageRendering::Auto, key);
}
void
WebRenderPaintedLayerBlob::RenderLayer(wr::DisplayListBuilder& aBuilder,
const StackingContextHelper& aSc)
{
LayerIntRegion visibleRegion = GetVisibleRegion();
LayerIntRect bounds = visibleRegion.GetBounds();
LayerIntSize size = bounds.Size();
if (visibleRegion.IsEmpty()) {
if (gfxPrefs::LayersDump()) {
printf_stderr("PaintedLayer %p skipping\n", this->GetLayer());
}
return;
}
nsIntRegion regionToPaint;
regionToPaint.Sub(mVisibleRegion.ToUnknownRegion(), mValidRegion);
// We have something to paint but can't. This usually happens only in
// empty transactions
if (!regionToPaint.IsEmpty() && !WrManager()->GetPaintedLayerCallback()) {
WrManager()->SetTransactionIncomplete();
return;
}
IntSize imageSize(size.ToUnknownSize());
if (!regionToPaint.IsEmpty() && WrManager()->GetPaintedLayerCallback()) {
RefPtr<gfx::DrawEventRecorderMemory> recorder = MakeAndAddRef<gfx::DrawEventRecorderMemory>();
RefPtr<gfx::DrawTarget> dummyDt = gfx::Factory::CreateDrawTarget(gfx::BackendType::SKIA, imageSize, gfx::SurfaceFormat::B8G8R8X8);
RefPtr<gfx::DrawTarget> dt = gfx::Factory::CreateRecordingDrawTarget(recorder, dummyDt);
dt->ClearRect(Rect(0, 0, imageSize.width, imageSize.height));
dt->SetTransform(Matrix().PreTranslate(-bounds.x, -bounds.y));
RefPtr<gfxContext> ctx = gfxContext::CreatePreservingTransformOrNull(dt);
MOZ_ASSERT(ctx); // already checked the target above
WrManager()->GetPaintedLayerCallback()(this,
ctx,
visibleRegion.ToUnknownRegion(), visibleRegion.ToUnknownRegion(),
DrawRegionClip::DRAW, nsIntRegion(), WrManager()->GetPaintedLayerCallbackData());
if (gfxPrefs::WebRenderHighlightPaintedLayers()) {
dt->SetTransform(Matrix());
dt->FillRect(Rect(0, 0, imageSize.width, imageSize.height), ColorPattern(Color(1.0, 0.0, 0.0, 0.5)));
}
wr::ByteBuffer bytes;
bytes.Allocate(recorder->RecordingSize());
DebugOnly<bool> ok = recorder->CopyRecording((char*)bytes.AsSlice().begin().get(), bytes.AsSlice().length());
MOZ_ASSERT(ok);
//XXX: We should switch to updating the blob image instead of adding a new one
// That will get rid of this discard bit
if (mImageKey.isSome()) {
WrManager()->AddImageKeyForDiscard(mImageKey.value());
}
mImageKey = Some(GetImageKey());
WrBridge()->SendAddBlobImage(mImageKey.value(), imageSize, size.width * 4, dt->GetFormat(), bytes);
} else {
MOZ_ASSERT(GetInvalidRegion().IsEmpty());
}
ScrollingLayersHelper scroller(this, aBuilder, aSc);
StackingContextHelper sc(aSc, aBuilder, this);
LayerRect rect = Bounds();
DumpLayerInfo("PaintedLayer", rect);
LayerRect clipRect = ClipRect().valueOr(rect);
Maybe<WrImageMask> mask = BuildWrMaskLayer(&sc);
WrClipRegionToken clip = aBuilder.PushClipRegion(
sc.ToRelativeWrRect(clipRect),
mask.ptrOr(nullptr));
aBuilder.PushImage(sc.ToRelativeWrRect(rect), clip, wr::ImageRendering::Auto, mImageKey.value());
}