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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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 "ClientPaintedLayer.h"
#include "ClientTiledPaintedLayer.h" // for ClientTiledPaintedLayer
#include <stdint.h> // for uint32_t
#include "GeckoProfiler.h" // for PROFILER_LABEL
#include "client/ClientLayerManager.h" // for ClientLayerManager, etc
#include "gfxContext.h" // for gfxContext
#include "gfxRect.h" // for gfxRect
#include "gfxPrefs.h" // for gfxPrefs
#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
#include "mozilla/gfx/2D.h" // for DrawTarget
#include "mozilla/gfx/Matrix.h" // for Matrix
#include "mozilla/gfx/Rect.h" // for Rect, IntRect
#include "mozilla/gfx/Types.h" // for Float, etc
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/Preferences.h"
#include "nsCOMPtr.h" // for already_AddRefed
#include "nsISupportsImpl.h" // for Layer::AddRef, etc
#include "nsRect.h" // for mozilla::gfx::IntRect
#include "gfx2DGlue.h"
#include "ReadbackProcessor.h"
namespace mozilla {
namespace layers {
using namespace mozilla::gfx;
void
ClientPaintedLayer::PaintThebes()
{
PROFILER_LABEL("ClientPaintedLayer", "PaintThebes",
js::ProfileEntry::Category::GRAPHICS);
NS_ASSERTION(ClientManager()->InDrawing(),
"Can only draw in drawing phase");
uint32_t flags = RotatedContentBuffer::PAINT_CAN_DRAW_ROTATED;
if (ClientManager()->CompositorMightResample()) {
flags |= RotatedContentBuffer::PAINT_WILL_RESAMPLE;
}
if (!(flags & RotatedContentBuffer::PAINT_WILL_RESAMPLE)) {
if (MayResample()) {
flags |= RotatedContentBuffer::PAINT_WILL_RESAMPLE;
}
}
PaintState state =
mContentClient->BeginPaintBuffer(this, flags);
mValidRegion.Sub(mValidRegion, state.mRegionToInvalidate);
if (!state.mRegionToDraw.IsEmpty() && !ClientManager()->GetPaintedLayerCallback()) {
ClientManager()->SetTransactionIncomplete();
return;
}
// The area that became invalid and is visible needs to be repainted
// (this could be the whole visible area if our buffer switched
// from RGB to RGBA, because we might need to repaint with
// subpixel AA)
state.mRegionToInvalidate.And(state.mRegionToInvalidate,
GetLocalVisibleRegion().ToUnknownRegion());
bool didUpdate = false;
RotatedContentBuffer::DrawIterator iter;
while (DrawTarget* target = mContentClient->BorrowDrawTargetForPainting(state, &iter)) {
if (!target || !target->IsValid()) {
if (target) {
mContentClient->ReturnDrawTargetToBuffer(target);
}
continue;
}
SetAntialiasingFlags(this, target);
RefPtr<gfxContext> ctx = gfxContext::CreatePreservingTransformOrNull(target);
MOZ_ASSERT(ctx); // already checked the target above
ClientManager()->GetPaintedLayerCallback()(this,
ctx,
iter.mDrawRegion,
iter.mDrawRegion,
state.mClip,
state.mRegionToInvalidate,
ClientManager()->GetPaintedLayerCallbackData());
ctx = nullptr;
mContentClient->ReturnDrawTargetToBuffer(target);
didUpdate = true;
}
if (didUpdate) {
Mutated();
mValidRegion.Or(mValidRegion, state.mRegionToDraw);
ContentClientRemote* contentClientRemote = static_cast<ContentClientRemote*>(mContentClient.get());
MOZ_ASSERT(contentClientRemote->GetIPDLActor());
// Hold(this) ensures this layer is kept alive through the current transaction
// The ContentClient assumes this layer is kept alive (e.g., in CreateBuffer),
// so deleting this Hold for whatever reason will break things.
ClientManager()->Hold(this);
contentClientRemote->Updated(state.mRegionToDraw,
mVisibleRegion.ToUnknownRegion(),
state.mDidSelfCopy);
}
}
void
ClientPaintedLayer::RenderLayerWithReadback(ReadbackProcessor *aReadback)
{
RenderMaskLayers(this);
if (!mContentClient) {
mContentClient = ContentClient::CreateContentClient(ClientManager()->AsShadowForwarder());
if (!mContentClient) {
return;
}
mContentClient->Connect();
ClientManager()->AsShadowForwarder()->Attach(mContentClient, this);
MOZ_ASSERT(mContentClient->GetForwarder());
}
nsTArray<ReadbackProcessor::Update> readbackUpdates;
nsIntRegion readbackRegion;
if (aReadback && UsedForReadback()) {
aReadback->GetPaintedLayerUpdates(this, &readbackUpdates);
}
IntPoint origin(mVisibleRegion.GetBounds().x, mVisibleRegion.GetBounds().y);
mContentClient->BeginPaint();
PaintThebes();
mContentClient->EndPaint(&readbackUpdates);
}
already_AddRefed<PaintedLayer>
ClientLayerManager::CreatePaintedLayer()
{
return CreatePaintedLayerWithHint(NONE);
}
already_AddRefed<PaintedLayer>
ClientLayerManager::CreatePaintedLayerWithHint(PaintedLayerCreationHint aHint)
{
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
if (gfxPrefs::LayersTilesEnabled()) {
RefPtr<ClientTiledPaintedLayer> layer = new ClientTiledPaintedLayer(this, aHint);
CREATE_SHADOW(Painted);
return layer.forget();
} else {
RefPtr<ClientPaintedLayer> layer = new ClientPaintedLayer(this, aHint);
CREATE_SHADOW(Painted);
return layer.forget();
}
}
void
ClientPaintedLayer::PrintInfo(std::stringstream& aStream, const char* aPrefix)
{
PaintedLayer::PrintInfo(aStream, aPrefix);
if (mContentClient) {
aStream << "\n";
nsAutoCString pfx(aPrefix);
pfx += " ";
mContentClient->PrintInfo(aStream, pfx.get());
}
}
} // namespace layers
} // namespace mozilla
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