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https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
0fd9123eac
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echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
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! -name nsXPCOMCID.h \
! -name prtypes.h \
-type f \
\( -iname "*.cpp" \
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-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
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-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert PRInt8 int8_t
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1220 lines
40 KiB
C++
1220 lines
40 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/layers/PLayerChild.h"
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#include "mozilla/layers/PLayersChild.h"
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#include "mozilla/layers/PLayersParent.h"
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#include "gfxSharedImageSurface.h"
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#include "gfxImageSurface.h"
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#include "gfxUtils.h"
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#include "gfxPlatform.h"
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#include "nsXULAppAPI.h"
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#include "RenderTrace.h"
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#include "sampler.h"
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#define PIXMAN_DONT_DEFINE_STDINT
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#include "pixman.h"
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#include "BasicTiledThebesLayer.h"
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#include "BasicLayersImpl.h"
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#include "BasicThebesLayer.h"
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#include "BasicContainerLayer.h"
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#include "mozilla/Preferences.h"
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#include "nsIWidget.h"
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using namespace mozilla::gfx;
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namespace mozilla {
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namespace layers {
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/**
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* Clips to the smallest device-pixel-aligned rectangle containing aRect
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* in user space.
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* Returns true if the clip is "perfect", i.e. we actually clipped exactly to
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* aRect.
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*/
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static bool
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ClipToContain(gfxContext* aContext, const nsIntRect& aRect)
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{
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gfxRect userRect(aRect.x, aRect.y, aRect.width, aRect.height);
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gfxRect deviceRect = aContext->UserToDevice(userRect);
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deviceRect.RoundOut();
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gfxMatrix currentMatrix = aContext->CurrentMatrix();
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aContext->IdentityMatrix();
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aContext->NewPath();
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aContext->Rectangle(deviceRect);
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aContext->Clip();
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aContext->SetMatrix(currentMatrix);
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return aContext->DeviceToUser(deviceRect).IsEqualInterior(userRect);
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}
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already_AddRefed<gfxContext>
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BasicLayerManager::PushGroupForLayer(gfxContext* aContext, Layer* aLayer,
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const nsIntRegion& aRegion,
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bool* aNeedsClipToVisibleRegion)
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{
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// If we need to call PushGroup, we should clip to the smallest possible
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// area first to minimize the size of the temporary surface.
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bool didCompleteClip = ClipToContain(aContext, aRegion.GetBounds());
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nsRefPtr<gfxContext> result;
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if (aLayer->CanUseOpaqueSurface() &&
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((didCompleteClip && aRegion.GetNumRects() == 1) ||
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!aContext->CurrentMatrix().HasNonIntegerTranslation())) {
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// If the layer is opaque in its visible region we can push a CONTENT_COLOR
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// group. We need to make sure that only pixels inside the layer's visible
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// region are copied back to the destination. Remember if we've already
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// clipped precisely to the visible region.
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*aNeedsClipToVisibleRegion = !didCompleteClip || aRegion.GetNumRects() > 1;
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result = PushGroupWithCachedSurface(aContext, gfxASurface::CONTENT_COLOR);
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} else {
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*aNeedsClipToVisibleRegion = false;
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result = aContext;
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if (aLayer->GetContentFlags() & Layer::CONTENT_COMPONENT_ALPHA) {
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aContext->PushGroupAndCopyBackground(gfxASurface::CONTENT_COLOR_ALPHA);
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} else {
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aContext->PushGroup(gfxASurface::CONTENT_COLOR_ALPHA);
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}
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}
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return result.forget();
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}
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static nsIntRect
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ToOutsideIntRect(const gfxRect &aRect)
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{
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gfxRect r = aRect;
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r.RoundOut();
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return nsIntRect(r.X(), r.Y(), r.Width(), r.Height());
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}
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static nsIntRect
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ToInsideIntRect(const gfxRect& aRect)
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{
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gfxRect r = aRect;
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r.RoundIn();
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return nsIntRect(r.X(), r.Y(), r.Width(), r.Height());
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}
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BasicLayerManager::BasicLayerManager(nsIWidget* aWidget) :
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#ifdef DEBUG
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mPhase(PHASE_NONE),
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#endif
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mWidget(aWidget)
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, mDoubleBuffering(BUFFER_NONE), mUsingDefaultTarget(false)
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, mCachedSurfaceInUse(false)
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, mTransactionIncomplete(false)
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{
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MOZ_COUNT_CTOR(BasicLayerManager);
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NS_ASSERTION(aWidget, "Must provide a widget");
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}
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BasicLayerManager::BasicLayerManager() :
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#ifdef DEBUG
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mPhase(PHASE_NONE),
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#endif
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mWidget(nullptr)
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, mDoubleBuffering(BUFFER_NONE), mUsingDefaultTarget(false)
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, mCachedSurfaceInUse(false)
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, mTransactionIncomplete(false)
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{
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MOZ_COUNT_CTOR(BasicLayerManager);
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}
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BasicLayerManager::~BasicLayerManager()
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{
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NS_ASSERTION(!InTransaction(), "Died during transaction?");
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ClearCachedResources();
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mRoot = nullptr;
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MOZ_COUNT_DTOR(BasicLayerManager);
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}
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void
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BasicLayerManager::SetDefaultTarget(gfxContext* aContext)
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{
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NS_ASSERTION(!InTransaction(),
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"Must set default target outside transaction");
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mDefaultTarget = aContext;
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}
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void
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BasicLayerManager::SetDefaultTargetConfiguration(BufferMode aDoubleBuffering, ScreenRotation aRotation)
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{
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mDoubleBuffering = aDoubleBuffering;
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}
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void
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BasicLayerManager::BeginTransaction()
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{
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mInTransaction = true;
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mUsingDefaultTarget = true;
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BeginTransactionWithTarget(mDefaultTarget);
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}
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already_AddRefed<gfxContext>
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BasicLayerManager::PushGroupWithCachedSurface(gfxContext *aTarget,
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gfxASurface::gfxContentType aContent)
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{
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nsRefPtr<gfxContext> ctx;
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// We can't cache Azure DrawTargets at this point.
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if (!mCachedSurfaceInUse && aTarget->IsCairo()) {
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gfxContextMatrixAutoSaveRestore saveMatrix(aTarget);
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aTarget->IdentityMatrix();
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nsRefPtr<gfxASurface> currentSurf = aTarget->CurrentSurface();
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gfxRect clip = aTarget->GetClipExtents();
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clip.RoundOut();
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ctx = mCachedSurface.Get(aContent, clip, currentSurf);
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if (ctx) {
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mCachedSurfaceInUse = true;
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/* Align our buffer for the original surface */
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ctx->SetMatrix(saveMatrix.Matrix());
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return ctx.forget();
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}
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}
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ctx = aTarget;
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ctx->PushGroup(aContent);
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return ctx.forget();
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}
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void
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BasicLayerManager::PopGroupToSourceWithCachedSurface(gfxContext *aTarget, gfxContext *aPushed)
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{
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if (!aTarget)
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return;
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nsRefPtr<gfxASurface> current = aPushed->CurrentSurface();
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if (aTarget->IsCairo() && mCachedSurface.IsSurface(current)) {
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gfxContextMatrixAutoSaveRestore saveMatrix(aTarget);
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aTarget->IdentityMatrix();
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aTarget->SetSource(current);
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mCachedSurfaceInUse = false;
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} else {
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aTarget->PopGroupToSource();
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}
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}
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void
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BasicLayerManager::BeginTransactionWithTarget(gfxContext* aTarget)
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{
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mInTransaction = true;
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#ifdef MOZ_LAYERS_HAVE_LOG
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MOZ_LAYERS_LOG(("[----- BeginTransaction"));
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Log();
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#endif
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NS_ASSERTION(!InTransaction(), "Nested transactions not allowed");
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#ifdef DEBUG
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mPhase = PHASE_CONSTRUCTION;
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#endif
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mTarget = aTarget;
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}
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static void
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TransformIntRect(nsIntRect& aRect, const gfxMatrix& aMatrix,
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nsIntRect (*aRoundMethod)(const gfxRect&))
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{
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gfxRect gr = gfxRect(aRect.x, aRect.y, aRect.width, aRect.height);
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gr = aMatrix.TransformBounds(gr);
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aRect = (*aRoundMethod)(gr);
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}
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/**
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* This function assumes that GetEffectiveTransform transforms
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* all layers to the same coordinate system (the "root coordinate system").
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* It can't be used as is by accelerated layers because of intermediate surfaces.
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* This must set the hidden flag to true or false on *all* layers in the subtree.
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* It also sets the operator for all layers to "OVER", and call
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* SetDrawAtomically(false).
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* It clears mClipToVisibleRegion on all layers.
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* @param aClipRect the cliprect, in the root coordinate system. We assume
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* that any layer drawing is clipped to this rect. It is therefore not
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* allowed to add to the opaque region outside that rect.
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* @param aDirtyRect the dirty rect that will be painted, in the root
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* coordinate system. Layers outside this rect should be hidden.
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* @param aOpaqueRegion the opaque region covering aLayer, in the
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* root coordinate system.
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*/
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enum {
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ALLOW_OPAQUE = 0x01,
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};
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static void
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MarkLayersHidden(Layer* aLayer, const nsIntRect& aClipRect,
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const nsIntRect& aDirtyRect,
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nsIntRegion& aOpaqueRegion,
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uint32_t aFlags)
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{
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nsIntRect newClipRect(aClipRect);
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uint32_t newFlags = aFlags;
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// Allow aLayer or aLayer's descendants to cover underlying layers
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// only if it's opaque.
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if (aLayer->GetOpacity() != 1.0f) {
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newFlags &= ~ALLOW_OPAQUE;
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}
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{
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const nsIntRect* clipRect = aLayer->GetEffectiveClipRect();
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if (clipRect) {
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nsIntRect cr = *clipRect;
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// clipRect is in the container's coordinate system. Get it into the
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// global coordinate system.
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if (aLayer->GetParent()) {
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gfxMatrix tr;
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if (aLayer->GetParent()->GetEffectiveTransform().CanDraw2D(&tr)) {
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// Clip rect is applied after aLayer's transform, i.e., in the coordinate
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// system of aLayer's parent.
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TransformIntRect(cr, tr, ToInsideIntRect);
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} else {
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cr.SetRect(0, 0, 0, 0);
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}
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}
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newClipRect.IntersectRect(newClipRect, cr);
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}
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}
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BasicImplData* data = ToData(aLayer);
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data->SetOperator(gfxContext::OPERATOR_OVER);
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data->SetClipToVisibleRegion(false);
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data->SetDrawAtomically(false);
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if (!aLayer->AsContainerLayer()) {
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gfxMatrix transform;
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if (!aLayer->GetEffectiveTransform().CanDraw2D(&transform)) {
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data->SetHidden(false);
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return;
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}
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nsIntRegion region = aLayer->GetEffectiveVisibleRegion();
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nsIntRect r = region.GetBounds();
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TransformIntRect(r, transform, ToOutsideIntRect);
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r.IntersectRect(r, aDirtyRect);
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data->SetHidden(aOpaqueRegion.Contains(r));
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// Allow aLayer to cover underlying layers only if aLayer's
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// content is opaque
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if ((aLayer->GetContentFlags() & Layer::CONTENT_OPAQUE) &&
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(newFlags & ALLOW_OPAQUE)) {
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nsIntRegionRectIterator it(region);
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while (const nsIntRect* sr = it.Next()) {
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r = *sr;
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TransformIntRect(r, transform, ToInsideIntRect);
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r.IntersectRect(r, newClipRect);
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aOpaqueRegion.Or(aOpaqueRegion, r);
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}
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}
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} else {
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Layer* child = aLayer->GetLastChild();
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bool allHidden = true;
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for (; child; child = child->GetPrevSibling()) {
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MarkLayersHidden(child, newClipRect, aDirtyRect, aOpaqueRegion, newFlags);
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if (!ToData(child)->IsHidden()) {
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allHidden = false;
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}
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}
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data->SetHidden(allHidden);
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}
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}
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/**
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* This function assumes that GetEffectiveTransform transforms
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* all layers to the same coordinate system (the "root coordinate system").
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* MarkLayersHidden must be called before calling this.
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* @param aVisibleRect the rectangle of aLayer that is visible (i.e. not
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* clipped and in the dirty rect), in the root coordinate system.
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*/
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static void
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ApplyDoubleBuffering(Layer* aLayer, const nsIntRect& aVisibleRect)
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{
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BasicImplData* data = ToData(aLayer);
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if (data->IsHidden())
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return;
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nsIntRect newVisibleRect(aVisibleRect);
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{
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const nsIntRect* clipRect = aLayer->GetEffectiveClipRect();
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if (clipRect) {
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nsIntRect cr = *clipRect;
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// clipRect is in the container's coordinate system. Get it into the
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// global coordinate system.
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if (aLayer->GetParent()) {
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gfxMatrix tr;
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if (aLayer->GetParent()->GetEffectiveTransform().CanDraw2D(&tr)) {
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NS_ASSERTION(!tr.HasNonIntegerTranslation(),
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"Parent can only have an integer translation");
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cr += nsIntPoint(int32_t(tr.x0), int32_t(tr.y0));
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} else {
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NS_ERROR("Parent can only have an integer translation");
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}
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}
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newVisibleRect.IntersectRect(newVisibleRect, cr);
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}
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}
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BasicContainerLayer* container =
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static_cast<BasicContainerLayer*>(aLayer->AsContainerLayer());
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// Layers that act as their own backbuffers should be drawn to the destination
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// using OPERATOR_SOURCE to ensure that alpha values in a transparent window
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// are cleared. This can also be faster than OPERATOR_OVER.
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if (!container) {
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data->SetOperator(gfxContext::OPERATOR_SOURCE);
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data->SetDrawAtomically(true);
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} else {
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if (container->UseIntermediateSurface() ||
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!container->ChildrenPartitionVisibleRegion(newVisibleRect)) {
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// We need to double-buffer this container.
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data->SetOperator(gfxContext::OPERATOR_SOURCE);
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container->ForceIntermediateSurface();
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} else {
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// Tell the children to clip to their visible regions so our assumption
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// that they don't paint outside their visible regions is valid!
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for (Layer* child = aLayer->GetFirstChild(); child;
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child = child->GetNextSibling()) {
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ToData(child)->SetClipToVisibleRegion(true);
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ApplyDoubleBuffering(child, newVisibleRect);
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}
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}
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}
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}
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void
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BasicLayerManager::EndTransaction(DrawThebesLayerCallback aCallback,
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void* aCallbackData,
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EndTransactionFlags aFlags)
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{
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mInTransaction = false;
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EndTransactionInternal(aCallback, aCallbackData, aFlags);
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}
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void
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BasicLayerManager::AbortTransaction()
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{
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NS_ASSERTION(InConstruction(), "Should be in construction phase");
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#ifdef DEBUG
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mPhase = PHASE_NONE;
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#endif
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mUsingDefaultTarget = false;
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mInTransaction = false;
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}
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|
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bool
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BasicLayerManager::EndTransactionInternal(DrawThebesLayerCallback aCallback,
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void* aCallbackData,
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EndTransactionFlags aFlags)
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{
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SAMPLE_LABEL("BasicLayerManager", "EndTranscationInternal");
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#ifdef MOZ_LAYERS_HAVE_LOG
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MOZ_LAYERS_LOG((" ----- (beginning paint)"));
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Log();
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#endif
|
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|
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NS_ASSERTION(InConstruction(), "Should be in construction phase");
|
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#ifdef DEBUG
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mPhase = PHASE_DRAWING;
|
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#endif
|
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|
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Layer* aLayer = GetRoot();
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RenderTraceLayers(aLayer, "FF00");
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|
|
|
mTransactionIncomplete = false;
|
|
|
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if (aFlags & END_NO_COMPOSITE) {
|
|
// TODO: We should really just set mTarget to null and make sure we can handle that further down the call chain
|
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nsRefPtr<gfxASurface> surf = gfxPlatform::GetPlatform()->CreateOffscreenSurface(gfxIntSize(1, 1), gfxASurface::CONTENT_COLOR);
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mTarget = new gfxContext(surf);
|
|
}
|
|
|
|
if (mTarget && mRoot && !(aFlags & END_NO_IMMEDIATE_REDRAW)) {
|
|
nsIntRect clipRect;
|
|
if (HasShadowManager()) {
|
|
// If this has a shadow manager, the clip extents of mTarget are meaningless.
|
|
// So instead just use the root layer's visible region bounds.
|
|
const nsIntRect& bounds = mRoot->GetVisibleRegion().GetBounds();
|
|
gfxRect deviceRect =
|
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mTarget->UserToDevice(gfxRect(bounds.x, bounds.y, bounds.width, bounds.height));
|
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clipRect = ToOutsideIntRect(deviceRect);
|
|
} else {
|
|
gfxContextMatrixAutoSaveRestore save(mTarget);
|
|
mTarget->SetMatrix(gfxMatrix());
|
|
clipRect = ToOutsideIntRect(mTarget->GetClipExtents());
|
|
}
|
|
|
|
// Need to do this before we call ApplyDoubleBuffering,
|
|
// which depends on correct effective transforms
|
|
mSnapEffectiveTransforms =
|
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!(mTarget->GetFlags() & gfxContext::FLAG_DISABLE_SNAPPING);
|
|
mRoot->ComputeEffectiveTransforms(gfx3DMatrix::From2D(mTarget->CurrentMatrix()));
|
|
|
|
if (IsRetained()) {
|
|
nsIntRegion region;
|
|
MarkLayersHidden(mRoot, clipRect, clipRect, region, ALLOW_OPAQUE);
|
|
if (mUsingDefaultTarget && mDoubleBuffering != BUFFER_NONE) {
|
|
ApplyDoubleBuffering(mRoot, clipRect);
|
|
}
|
|
}
|
|
|
|
if (aFlags & END_NO_COMPOSITE) {
|
|
if (IsRetained()) {
|
|
// Clip the destination out so that we don't draw to it, and
|
|
// only end up validating ThebesLayers.
|
|
mTarget->Clip(gfxRect(0, 0, 0, 0));
|
|
PaintLayer(mTarget, mRoot, aCallback, aCallbackData, nullptr);
|
|
}
|
|
// If we're not retained, then don't composite means do nothing at all.
|
|
} else {
|
|
PaintLayer(mTarget, mRoot, aCallback, aCallbackData, nullptr);
|
|
if (mWidget) {
|
|
FlashWidgetUpdateArea(mTarget);
|
|
}
|
|
}
|
|
|
|
if (!mTransactionIncomplete) {
|
|
// Clear out target if we have a complete transaction.
|
|
mTarget = nullptr;
|
|
}
|
|
}
|
|
|
|
#ifdef MOZ_LAYERS_HAVE_LOG
|
|
Log();
|
|
MOZ_LAYERS_LOG(("]----- EndTransaction"));
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
// Go back to the construction phase if the transaction isn't complete.
|
|
// Layout will update the layer tree and call EndTransaction().
|
|
mPhase = mTransactionIncomplete ? PHASE_CONSTRUCTION : PHASE_NONE;
|
|
#endif
|
|
|
|
if (!mTransactionIncomplete) {
|
|
// This is still valid if the transaction was incomplete.
|
|
mUsingDefaultTarget = false;
|
|
}
|
|
|
|
NS_ASSERTION(!aCallback || !mTransactionIncomplete,
|
|
"If callback is not null, transaction must be complete");
|
|
|
|
// XXX - We should probably assert here that for an incomplete transaction
|
|
// out target is the default target.
|
|
|
|
return !mTransactionIncomplete;
|
|
}
|
|
|
|
void
|
|
BasicLayerManager::FlashWidgetUpdateArea(gfxContext *aContext)
|
|
{
|
|
static bool sWidgetFlashingEnabled;
|
|
static bool sWidgetFlashingPrefCached = false;
|
|
|
|
if (!sWidgetFlashingPrefCached) {
|
|
sWidgetFlashingPrefCached = true;
|
|
mozilla::Preferences::AddBoolVarCache(&sWidgetFlashingEnabled,
|
|
"nglayout.debug.widget_update_flashing");
|
|
}
|
|
|
|
if (sWidgetFlashingEnabled) {
|
|
float r = float(rand()) / RAND_MAX;
|
|
float g = float(rand()) / RAND_MAX;
|
|
float b = float(rand()) / RAND_MAX;
|
|
aContext->SetColor(gfxRGBA(r, g, b, 0.2));
|
|
aContext->Paint();
|
|
}
|
|
}
|
|
|
|
bool
|
|
BasicLayerManager::EndEmptyTransaction(EndTransactionFlags aFlags)
|
|
{
|
|
mInTransaction = false;
|
|
|
|
if (!mRoot) {
|
|
return false;
|
|
}
|
|
|
|
return EndTransactionInternal(nullptr, nullptr, aFlags);
|
|
}
|
|
|
|
void
|
|
BasicLayerManager::SetRoot(Layer* aLayer)
|
|
{
|
|
NS_ASSERTION(aLayer, "Root can't be null");
|
|
NS_ASSERTION(aLayer->Manager() == this, "Wrong manager");
|
|
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
|
|
mRoot = aLayer;
|
|
}
|
|
|
|
static pixman_transform
|
|
Matrix3DToPixman(const gfx3DMatrix& aMatrix)
|
|
{
|
|
pixman_f_transform transform;
|
|
|
|
transform.m[0][0] = aMatrix._11;
|
|
transform.m[0][1] = aMatrix._21;
|
|
transform.m[0][2] = aMatrix._41;
|
|
transform.m[1][0] = aMatrix._12;
|
|
transform.m[1][1] = aMatrix._22;
|
|
transform.m[1][2] = aMatrix._42;
|
|
transform.m[2][0] = aMatrix._14;
|
|
transform.m[2][1] = aMatrix._24;
|
|
transform.m[2][2] = aMatrix._44;
|
|
|
|
pixman_transform result;
|
|
pixman_transform_from_pixman_f_transform(&result, &transform);
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
PixmanTransform(const gfxImageSurface *aDest,
|
|
const gfxImageSurface *aSrc,
|
|
const gfx3DMatrix& aTransform,
|
|
gfxPoint aDestOffset)
|
|
{
|
|
gfxIntSize destSize = aDest->GetSize();
|
|
pixman_image_t* dest = pixman_image_create_bits(aDest->Format() == gfxASurface::ImageFormatARGB32 ? PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8,
|
|
destSize.width,
|
|
destSize.height,
|
|
(uint32_t*)aDest->Data(),
|
|
aDest->Stride());
|
|
|
|
gfxIntSize srcSize = aSrc->GetSize();
|
|
pixman_image_t* src = pixman_image_create_bits(aSrc->Format() == gfxASurface::ImageFormatARGB32 ? PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8,
|
|
srcSize.width,
|
|
srcSize.height,
|
|
(uint32_t*)aSrc->Data(),
|
|
aSrc->Stride());
|
|
|
|
NS_ABORT_IF_FALSE(src && dest, "Failed to create pixman images?");
|
|
|
|
pixman_transform pixTransform = Matrix3DToPixman(aTransform);
|
|
pixman_transform pixTransformInverted;
|
|
|
|
// If the transform is singular then nothing would be drawn anyway, return here
|
|
if (!pixman_transform_invert(&pixTransformInverted, &pixTransform)) {
|
|
return;
|
|
}
|
|
pixman_image_set_transform(src, &pixTransformInverted);
|
|
|
|
pixman_image_composite32(PIXMAN_OP_SRC,
|
|
src,
|
|
nullptr,
|
|
dest,
|
|
aDestOffset.x,
|
|
aDestOffset.y,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
destSize.width,
|
|
destSize.height);
|
|
|
|
pixman_image_unref(dest);
|
|
pixman_image_unref(src);
|
|
}
|
|
|
|
/**
|
|
* Transform a surface using a gfx3DMatrix and blit to the destination if
|
|
* it is efficient to do so.
|
|
*
|
|
* @param aSource Source surface.
|
|
* @param aDest Desintation context.
|
|
* @param aBounds Area represented by aSource.
|
|
* @param aTransform Transformation matrix.
|
|
* @param aDrawOffset Location to draw returned surface on aDest.
|
|
* @param aDontBlit Never draw to aDest if this is true.
|
|
* @return Transformed surface, or nullptr if it has been drawn to aDest.
|
|
*/
|
|
static already_AddRefed<gfxASurface>
|
|
Transform3D(gfxASurface* aSource, gfxContext* aDest,
|
|
const gfxRect& aBounds, const gfx3DMatrix& aTransform,
|
|
gfxPoint& aDrawOffset, bool aDontBlit)
|
|
{
|
|
nsRefPtr<gfxImageSurface> sourceImage = aSource->GetAsImageSurface();
|
|
if (!sourceImage) {
|
|
sourceImage = new gfxImageSurface(gfxIntSize(aBounds.width, aBounds.height), gfxPlatform::GetPlatform()->OptimalFormatForContent(aSource->GetContentType()));
|
|
nsRefPtr<gfxContext> ctx = new gfxContext(sourceImage);
|
|
|
|
aSource->SetDeviceOffset(gfxPoint(0, 0));
|
|
ctx->SetSource(aSource);
|
|
ctx->SetOperator(gfxContext::OPERATOR_SOURCE);
|
|
ctx->Paint();
|
|
}
|
|
|
|
// Find the transformed rectangle of our layer.
|
|
gfxRect offsetRect = aTransform.TransformBounds(aBounds);
|
|
|
|
// Intersect the transformed layer with the destination rectangle.
|
|
// This is in device space since we have an identity transform set on aTarget.
|
|
gfxRect destRect = aDest->GetClipExtents();
|
|
destRect.IntersectRect(destRect, offsetRect);
|
|
|
|
// Create a surface the size of the transformed object.
|
|
nsRefPtr<gfxASurface> dest = aDest->CurrentSurface();
|
|
nsRefPtr<gfxImageSurface> destImage;
|
|
gfxPoint offset;
|
|
bool blitComplete;
|
|
if (!destImage || aDontBlit || !aDest->ClipContainsRect(destRect)) {
|
|
destImage = new gfxImageSurface(gfxIntSize(destRect.width, destRect.height),
|
|
gfxASurface::ImageFormatARGB32);
|
|
offset = destRect.TopLeft();
|
|
blitComplete = false;
|
|
} else {
|
|
offset = -dest->GetDeviceOffset();
|
|
blitComplete = true;
|
|
}
|
|
|
|
// Include a translation to the correct origin.
|
|
gfx3DMatrix translation = gfx3DMatrix::Translation(aBounds.x, aBounds.y, 0);
|
|
|
|
// Transform the content and offset it such that the content begins at the origin.
|
|
PixmanTransform(destImage, sourceImage, translation * aTransform, offset);
|
|
|
|
if (blitComplete) {
|
|
return nullptr;
|
|
}
|
|
|
|
// If we haven't actually drawn to aDest then return our temporary image so that
|
|
// the caller can do this.
|
|
aDrawOffset = destRect.TopLeft();
|
|
return destImage.forget();
|
|
}
|
|
|
|
|
|
|
|
void
|
|
BasicLayerManager::PaintLayer(gfxContext* aTarget,
|
|
Layer* aLayer,
|
|
DrawThebesLayerCallback aCallback,
|
|
void* aCallbackData,
|
|
ReadbackProcessor* aReadback)
|
|
{
|
|
RenderTraceScope trace("BasicLayerManager::PaintLayer", "707070");
|
|
|
|
const nsIntRect* clipRect = aLayer->GetEffectiveClipRect();
|
|
const gfx3DMatrix& effectiveTransform = aLayer->GetEffectiveTransform();
|
|
// aLayer might not be a container layer, but if so we take care not to use
|
|
// the container variable
|
|
BasicContainerLayer* container = static_cast<BasicContainerLayer*>(aLayer);
|
|
bool needsGroup = aLayer->GetFirstChild() &&
|
|
container->UseIntermediateSurface();
|
|
BasicImplData* data = ToData(aLayer);
|
|
bool needsClipToVisibleRegion =
|
|
data->GetClipToVisibleRegion() && !aLayer->AsThebesLayer();
|
|
NS_ASSERTION(needsGroup || !aLayer->GetFirstChild() ||
|
|
container->GetOperator() == gfxContext::OPERATOR_OVER,
|
|
"non-OVER operator should have forced UseIntermediateSurface");
|
|
NS_ASSERTION(!aLayer->GetFirstChild() || !aLayer->GetMaskLayer() ||
|
|
container->UseIntermediateSurface(),
|
|
"ContainerLayer with mask layer should force UseIntermediateSurface");
|
|
|
|
// If needsSaveRestore is false, we should still save and restore
|
|
// the CTM
|
|
bool needsSaveRestore = needsGroup || clipRect || needsClipToVisibleRegion;
|
|
gfxMatrix savedMatrix;
|
|
if (needsSaveRestore) {
|
|
aTarget->Save();
|
|
|
|
if (clipRect) {
|
|
aTarget->NewPath();
|
|
aTarget->Rectangle(gfxRect(clipRect->x, clipRect->y, clipRect->width, clipRect->height), true);
|
|
aTarget->Clip();
|
|
}
|
|
}
|
|
savedMatrix = aTarget->CurrentMatrix();
|
|
|
|
gfxMatrix transform;
|
|
// Will return an identity matrix for 3d transforms, and is handled separately below.
|
|
bool is2D = effectiveTransform.CanDraw2D(&transform);
|
|
NS_ABORT_IF_FALSE(is2D || needsGroup || !aLayer->GetFirstChild(), "Must PushGroup for 3d transforms!");
|
|
if (is2D) {
|
|
aTarget->SetMatrix(transform);
|
|
} else {
|
|
aTarget->SetMatrix(gfxMatrix());
|
|
}
|
|
|
|
const nsIntRegion& visibleRegion = aLayer->GetEffectiveVisibleRegion();
|
|
// If needsGroup is true, we'll clip to the visible region after we've popped the group
|
|
if (needsClipToVisibleRegion && !needsGroup) {
|
|
gfxUtils::ClipToRegion(aTarget, visibleRegion);
|
|
// Don't need to clip to visible region again
|
|
needsClipToVisibleRegion = false;
|
|
}
|
|
|
|
bool pushedTargetOpaqueRect = false;
|
|
nsRefPtr<gfxASurface> currentSurface = aTarget->CurrentSurface();
|
|
DrawTarget *dt = aTarget->GetDrawTarget();
|
|
const nsIntRect& bounds = visibleRegion.GetBounds();
|
|
|
|
if (is2D) {
|
|
if (aTarget->IsCairo()) {
|
|
const gfxRect& targetOpaqueRect = currentSurface->GetOpaqueRect();
|
|
|
|
// Try to annotate currentSurface with a region of pixels that have been
|
|
// (or will be) painted opaque, if no such region is currently set.
|
|
if (targetOpaqueRect.IsEmpty() && visibleRegion.GetNumRects() == 1 &&
|
|
(aLayer->GetContentFlags() & Layer::CONTENT_OPAQUE) &&
|
|
!transform.HasNonAxisAlignedTransform()) {
|
|
currentSurface->SetOpaqueRect(
|
|
aTarget->UserToDevice(gfxRect(bounds.x, bounds.y, bounds.width, bounds.height)));
|
|
pushedTargetOpaqueRect = true;
|
|
}
|
|
} else {
|
|
const IntRect& targetOpaqueRect = dt->GetOpaqueRect();
|
|
|
|
// Try to annotate currentSurface with a region of pixels that have been
|
|
// (or will be) painted opaque, if no such region is currently set.
|
|
if (targetOpaqueRect.IsEmpty() && visibleRegion.GetNumRects() == 1 &&
|
|
(aLayer->GetContentFlags() & Layer::CONTENT_OPAQUE) &&
|
|
!transform.HasNonAxisAlignedTransform()) {
|
|
|
|
gfx::Rect opaqueRect = dt->GetTransform().TransformBounds(
|
|
gfx::Rect(bounds.x, bounds.y, bounds.width, bounds.height));
|
|
opaqueRect.RoundIn();
|
|
IntRect intOpaqueRect;
|
|
if (opaqueRect.ToIntRect(&intOpaqueRect)) {
|
|
aTarget->GetDrawTarget()->SetOpaqueRect(intOpaqueRect);
|
|
pushedTargetOpaqueRect = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
nsRefPtr<gfxContext> groupTarget;
|
|
nsRefPtr<gfxASurface> untransformedSurface;
|
|
bool clipIsEmpty = !aTarget || aTarget->GetClipExtents().IsEmpty();
|
|
if (!is2D && !clipIsEmpty) {
|
|
untransformedSurface =
|
|
gfxPlatform::GetPlatform()->CreateOffscreenSurface(gfxIntSize(bounds.width, bounds.height),
|
|
gfxASurface::CONTENT_COLOR_ALPHA);
|
|
if (!untransformedSurface) {
|
|
if (pushedTargetOpaqueRect) {
|
|
if (aTarget->IsCairo()) {
|
|
currentSurface->SetOpaqueRect(gfxRect(0, 0, 0, 0));
|
|
} else {
|
|
dt->SetOpaqueRect(IntRect());
|
|
}
|
|
}
|
|
NS_ASSERTION(needsSaveRestore, "Should always need to restore with 3d transforms!");
|
|
aTarget->Restore();
|
|
return;
|
|
}
|
|
untransformedSurface->SetDeviceOffset(gfxPoint(-bounds.x, -bounds.y));
|
|
groupTarget = new gfxContext(untransformedSurface);
|
|
} else if (needsGroup && !clipIsEmpty) {
|
|
groupTarget = PushGroupForLayer(aTarget, aLayer, aLayer->GetEffectiveVisibleRegion(),
|
|
&needsClipToVisibleRegion);
|
|
} else {
|
|
groupTarget = aTarget;
|
|
}
|
|
|
|
if (aLayer->GetFirstChild() &&
|
|
aLayer->GetMaskLayer() &&
|
|
HasShadowManager()) {
|
|
// 'paint' the mask so that it gets sent to the shadow layer tree
|
|
static_cast<BasicImplData*>(aLayer->GetMaskLayer()->ImplData())
|
|
->Paint(nullptr, nullptr);
|
|
}
|
|
|
|
/* Only paint ourself, or our children - This optimization relies on this! */
|
|
Layer* child = aLayer->GetFirstChild();
|
|
if (!child) {
|
|
#ifdef MOZ_LAYERS_HAVE_LOG
|
|
MOZ_LAYERS_LOG(("%s (0x%p) is covered: %i\n", __FUNCTION__,
|
|
(void*)aLayer, data->IsHidden()));
|
|
#endif
|
|
if (aLayer->AsThebesLayer()) {
|
|
data->PaintThebes(groupTarget,
|
|
aLayer->GetMaskLayer(),
|
|
aCallback, aCallbackData,
|
|
aReadback);
|
|
} else {
|
|
data->Paint(groupTarget, aLayer->GetMaskLayer());
|
|
}
|
|
} else {
|
|
ReadbackProcessor readback;
|
|
ContainerLayer* container = static_cast<ContainerLayer*>(aLayer);
|
|
if (IsRetained()) {
|
|
readback.BuildUpdates(container);
|
|
}
|
|
|
|
nsAutoTArray<Layer*, 12> children;
|
|
container->SortChildrenBy3DZOrder(children);
|
|
|
|
for (uint32_t i = 0; i < children.Length(); i++) {
|
|
PaintLayer(groupTarget, children.ElementAt(i), aCallback, aCallbackData, &readback);
|
|
if (mTransactionIncomplete)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (needsGroup) {
|
|
bool blitComplete = false;
|
|
if (is2D) {
|
|
PopGroupToSourceWithCachedSurface(aTarget, groupTarget);
|
|
} else {
|
|
// Temporary fast fix for bug 725886
|
|
// Revert these changes when 725886 is ready
|
|
if (!clipIsEmpty) {
|
|
NS_ABORT_IF_FALSE(untransformedSurface,
|
|
"We should always allocate an untransformed surface with 3d transforms!");
|
|
gfxPoint offset;
|
|
bool dontBlit = needsClipToVisibleRegion || mTransactionIncomplete ||
|
|
aLayer->GetEffectiveOpacity() != 1.0f;
|
|
#ifdef DEBUG
|
|
if (aLayer->GetDebugColorIndex() != 0) {
|
|
gfxRGBA color((aLayer->GetDebugColorIndex() & 1) ? 1.0 : 0.0,
|
|
(aLayer->GetDebugColorIndex() & 2) ? 1.0 : 0.0,
|
|
(aLayer->GetDebugColorIndex() & 4) ? 1.0 : 0.0,
|
|
1.0);
|
|
|
|
nsRefPtr<gfxContext> temp = new gfxContext(untransformedSurface);
|
|
temp->SetColor(color);
|
|
temp->Paint();
|
|
}
|
|
#endif
|
|
|
|
nsRefPtr<gfxASurface> result =
|
|
Transform3D(untransformedSurface, aTarget, bounds,
|
|
effectiveTransform, offset, dontBlit);
|
|
|
|
blitComplete = !result;
|
|
if (result) {
|
|
aTarget->SetSource(result, offset);
|
|
}
|
|
}
|
|
}
|
|
// If we're doing our own double-buffering, we need to avoid drawing
|
|
// the results of an incomplete transaction to the destination surface ---
|
|
// that could cause flicker. Double-buffering is implemented using a
|
|
// temporary surface for one or more container layers, so we need to stop
|
|
// those temporary surfaces from being composited to aTarget.
|
|
// ApplyDoubleBuffering guarantees that this container layer can't
|
|
// intersect any other leaf layers, so if the transaction is not yet marked
|
|
// incomplete, the contents of this container layer are the final contents
|
|
// for the window.
|
|
if (!mTransactionIncomplete && !blitComplete) {
|
|
if (needsClipToVisibleRegion) {
|
|
gfxUtils::ClipToRegion(aTarget, aLayer->GetEffectiveVisibleRegion());
|
|
}
|
|
AutoSetOperator setOperator(aTarget, container->GetOperator());
|
|
PaintWithMask(aTarget, aLayer->GetEffectiveOpacity(),
|
|
HasShadowManager() ? nullptr : aLayer->GetMaskLayer());
|
|
}
|
|
}
|
|
|
|
if (pushedTargetOpaqueRect) {
|
|
if (aTarget->IsCairo()) {
|
|
currentSurface->SetOpaqueRect(gfxRect(0, 0, 0, 0));
|
|
} else {
|
|
dt->SetOpaqueRect(IntRect());
|
|
}
|
|
}
|
|
|
|
if (needsSaveRestore) {
|
|
aTarget->Restore();
|
|
} else {
|
|
aTarget->SetMatrix(savedMatrix);
|
|
}
|
|
}
|
|
|
|
void
|
|
BasicLayerManager::ClearCachedResources()
|
|
{
|
|
if (mRoot) {
|
|
ClearLayer(mRoot);
|
|
}
|
|
|
|
mCachedSurface.Expire();
|
|
}
|
|
void
|
|
BasicLayerManager::ClearLayer(Layer* aLayer)
|
|
{
|
|
ToData(aLayer)->ClearCachedResources();
|
|
for (Layer* child = aLayer->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
ClearLayer(child);
|
|
}
|
|
}
|
|
|
|
already_AddRefed<ReadbackLayer>
|
|
BasicLayerManager::CreateReadbackLayer()
|
|
{
|
|
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
|
|
nsRefPtr<ReadbackLayer> layer = new BasicReadbackLayer(this);
|
|
return layer.forget();
|
|
}
|
|
|
|
BasicShadowLayerManager::BasicShadowLayerManager(nsIWidget* aWidget) :
|
|
BasicLayerManager(aWidget), mTargetRotation(ROTATION_0),
|
|
mRepeatTransaction(false)
|
|
{
|
|
MOZ_COUNT_CTOR(BasicShadowLayerManager);
|
|
}
|
|
|
|
BasicShadowLayerManager::~BasicShadowLayerManager()
|
|
{
|
|
MOZ_COUNT_DTOR(BasicShadowLayerManager);
|
|
}
|
|
|
|
int32_t
|
|
BasicShadowLayerManager::GetMaxTextureSize() const
|
|
{
|
|
if (HasShadowManager()) {
|
|
return ShadowLayerForwarder::GetMaxTextureSize();
|
|
}
|
|
|
|
return PR_INT32_MAX;
|
|
}
|
|
|
|
void
|
|
BasicShadowLayerManager::SetDefaultTargetConfiguration(BufferMode aDoubleBuffering, ScreenRotation aRotation)
|
|
{
|
|
BasicLayerManager::SetDefaultTargetConfiguration(aDoubleBuffering, aRotation);
|
|
mTargetRotation = aRotation;
|
|
if (mWidget) {
|
|
mTargetBounds = mWidget->GetNaturalBounds();
|
|
}
|
|
}
|
|
|
|
void
|
|
BasicShadowLayerManager::SetRoot(Layer* aLayer)
|
|
{
|
|
if (mRoot != aLayer) {
|
|
if (HasShadowManager()) {
|
|
// Have to hold the old root and its children in order to
|
|
// maintain the same view of the layer tree in this process as
|
|
// the parent sees. Otherwise layers can be destroyed
|
|
// mid-transaction and bad things can happen (v. bug 612573)
|
|
if (mRoot) {
|
|
Hold(mRoot);
|
|
}
|
|
ShadowLayerForwarder::SetRoot(Hold(aLayer));
|
|
}
|
|
BasicLayerManager::SetRoot(aLayer);
|
|
}
|
|
}
|
|
|
|
void
|
|
BasicShadowLayerManager::Mutated(Layer* aLayer)
|
|
{
|
|
BasicLayerManager::Mutated(aLayer);
|
|
|
|
NS_ASSERTION(InConstruction() || InDrawing(), "wrong phase");
|
|
if (HasShadowManager() && ShouldShadow(aLayer)) {
|
|
ShadowLayerForwarder::Mutated(Hold(aLayer));
|
|
}
|
|
}
|
|
|
|
void
|
|
BasicShadowLayerManager::BeginTransactionWithTarget(gfxContext* aTarget)
|
|
{
|
|
NS_ABORT_IF_FALSE(mKeepAlive.IsEmpty(), "uncommitted txn?");
|
|
nsRefPtr<gfxContext> targetContext = aTarget;
|
|
|
|
// If the last transaction was incomplete (a failed DoEmptyTransaction),
|
|
// don't signal a new transaction to ShadowLayerForwarder. Carry on adding
|
|
// to the previous transaction.
|
|
if (HasShadowManager()) {
|
|
ShadowLayerForwarder::BeginTransaction(mTargetBounds, mTargetRotation);
|
|
|
|
// If we have a non-default target, we need to let our shadow manager draw
|
|
// to it. This will happen at the end of the transaction.
|
|
if (aTarget && (aTarget != mDefaultTarget) &&
|
|
XRE_GetProcessType() == GeckoProcessType_Default) {
|
|
mShadowTarget = aTarget;
|
|
|
|
// Create a temporary target for ourselves, so that mShadowTarget is only
|
|
// drawn to by our shadow manager.
|
|
nsRefPtr<gfxASurface> targetSurface = gfxPlatform::GetPlatform()->
|
|
CreateOffscreenSurface(aTarget->OriginalSurface()->GetSize(),
|
|
aTarget->OriginalSurface()->GetContentType());
|
|
targetContext = new gfxContext(targetSurface);
|
|
}
|
|
}
|
|
BasicLayerManager::BeginTransactionWithTarget(aTarget);
|
|
}
|
|
|
|
void
|
|
BasicShadowLayerManager::EndTransaction(DrawThebesLayerCallback aCallback,
|
|
void* aCallbackData,
|
|
EndTransactionFlags aFlags)
|
|
{
|
|
BasicLayerManager::EndTransaction(aCallback, aCallbackData, aFlags);
|
|
ForwardTransaction();
|
|
|
|
if (mRepeatTransaction) {
|
|
mRepeatTransaction = false;
|
|
BasicLayerManager::BeginTransaction();
|
|
BasicShadowLayerManager::EndTransaction(aCallback, aCallbackData, aFlags);
|
|
} else if (mShadowTarget) {
|
|
// Draw to shadow target at the recursion tail of the repeat transactions
|
|
ShadowLayerForwarder::ShadowDrawToTarget(mShadowTarget);
|
|
mShadowTarget = nullptr;
|
|
}
|
|
}
|
|
|
|
bool
|
|
BasicShadowLayerManager::EndEmptyTransaction(EndTransactionFlags aFlags)
|
|
{
|
|
if (!BasicLayerManager::EndEmptyTransaction(aFlags)) {
|
|
// Return without calling ForwardTransaction. This leaves the
|
|
// ShadowLayerForwarder transaction open; the following
|
|
// EndTransaction will complete it.
|
|
return false;
|
|
}
|
|
ForwardTransaction();
|
|
return true;
|
|
}
|
|
|
|
void
|
|
BasicShadowLayerManager::ForwardTransaction()
|
|
{
|
|
RenderTraceScope rendertrace("Foward Transaction", "000090");
|
|
#ifdef DEBUG
|
|
mPhase = PHASE_FORWARD;
|
|
#endif
|
|
|
|
// forward this transaction's changeset to our ShadowLayerManager
|
|
AutoInfallibleTArray<EditReply, 10> replies;
|
|
if (HasShadowManager() && ShadowLayerForwarder::EndTransaction(&replies)) {
|
|
for (nsTArray<EditReply>::size_type i = 0; i < replies.Length(); ++i) {
|
|
const EditReply& reply = replies[i];
|
|
|
|
switch (reply.type()) {
|
|
case EditReply::TOpThebesBufferSwap: {
|
|
MOZ_LAYERS_LOG(("[LayersForwarder] ThebesBufferSwap"));
|
|
|
|
const OpThebesBufferSwap& obs = reply.get_OpThebesBufferSwap();
|
|
BasicShadowableThebesLayer* thebes = GetBasicShadowable(obs)->AsThebes();
|
|
thebes->SetBackBufferAndAttrs(
|
|
obs.newBackBuffer(), obs.newValidRegion(),
|
|
obs.readOnlyFrontBuffer(), obs.frontUpdatedRegion());
|
|
break;
|
|
}
|
|
case EditReply::TOpBufferSwap: {
|
|
MOZ_LAYERS_LOG(("[LayersForwarder] BufferSwap"));
|
|
|
|
const OpBufferSwap& obs = reply.get_OpBufferSwap();
|
|
const CanvasSurface& newBack = obs.newBackBuffer();
|
|
if (newBack.type() == CanvasSurface::TSurfaceDescriptor) {
|
|
GetBasicShadowable(obs)->SetBackBuffer(newBack.get_SurfaceDescriptor());
|
|
} else if (newBack.type() == CanvasSurface::Tnull_t) {
|
|
GetBasicShadowable(obs)->SetBackBuffer(SurfaceDescriptor());
|
|
} else {
|
|
NS_RUNTIMEABORT("Unknown back image type");
|
|
}
|
|
break;
|
|
}
|
|
|
|
case EditReply::TOpImageSwap: {
|
|
MOZ_LAYERS_LOG(("[LayersForwarder] YUVBufferSwap"));
|
|
|
|
const OpImageSwap& ois = reply.get_OpImageSwap();
|
|
BasicShadowableLayer* layer = GetBasicShadowable(ois);
|
|
const SharedImage& newBack = ois.newBackImage();
|
|
|
|
if (newBack.type() == SharedImage::TSurfaceDescriptor) {
|
|
layer->SetBackBuffer(newBack.get_SurfaceDescriptor());
|
|
} else if (newBack.type() == SharedImage::TYUVImage) {
|
|
const YUVImage& yuv = newBack.get_YUVImage();
|
|
layer->SetBackBufferYUVImage(yuv.Ydata(), yuv.Udata(), yuv.Vdata());
|
|
} else {
|
|
layer->SetBackBuffer(SurfaceDescriptor());
|
|
layer->SetBackBufferYUVImage(SurfaceDescriptor(),
|
|
SurfaceDescriptor(),
|
|
SurfaceDescriptor());
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
NS_RUNTIMEABORT("not reached");
|
|
}
|
|
}
|
|
} else if (HasShadowManager()) {
|
|
NS_WARNING("failed to forward Layers transaction");
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
mPhase = PHASE_NONE;
|
|
#endif
|
|
|
|
// this may result in Layers being deleted, which results in
|
|
// PLayer::Send__delete__() and DeallocShmem()
|
|
mKeepAlive.Clear();
|
|
}
|
|
|
|
ShadowableLayer*
|
|
BasicShadowLayerManager::Hold(Layer* aLayer)
|
|
{
|
|
NS_ABORT_IF_FALSE(HasShadowManager(),
|
|
"top-level tree, no shadow tree to remote to");
|
|
|
|
ShadowableLayer* shadowable = ToShadowable(aLayer);
|
|
NS_ABORT_IF_FALSE(shadowable, "trying to remote an unshadowable layer");
|
|
|
|
mKeepAlive.AppendElement(aLayer);
|
|
return shadowable;
|
|
}
|
|
|
|
bool
|
|
BasicShadowLayerManager::IsCompositingCheap()
|
|
{
|
|
// Whether compositing is cheap depends on the parent backend.
|
|
return mShadowManager &&
|
|
LayerManager::IsCompositingCheap(GetParentBackendType());
|
|
}
|
|
|
|
void
|
|
BasicShadowLayerManager::SetIsFirstPaint()
|
|
{
|
|
ShadowLayerForwarder::SetIsFirstPaint();
|
|
}
|
|
|
|
already_AddRefed<ThebesLayer>
|
|
BasicShadowLayerManager::CreateThebesLayer()
|
|
{
|
|
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
|
|
#ifdef FORCE_BASICTILEDTHEBESLAYER
|
|
if (HasShadowManager() && GetParentBackendType() == LAYERS_OPENGL) {
|
|
// BasicTiledThebesLayer doesn't support main
|
|
// thread compositing so only return this layer
|
|
// type if we have a shadow manager.
|
|
nsRefPtr<BasicTiledThebesLayer> layer =
|
|
new BasicTiledThebesLayer(this);
|
|
MAYBE_CREATE_SHADOW(Thebes);
|
|
return layer.forget();
|
|
} else
|
|
#endif
|
|
{
|
|
nsRefPtr<BasicShadowableThebesLayer> layer =
|
|
new BasicShadowableThebesLayer(this);
|
|
MAYBE_CREATE_SHADOW(Thebes);
|
|
return layer.forget();
|
|
}
|
|
}
|
|
|
|
|
|
BasicShadowableLayer::~BasicShadowableLayer()
|
|
{
|
|
if (HasShadow()) {
|
|
PLayerChild::Send__delete__(GetShadow());
|
|
}
|
|
MOZ_COUNT_DTOR(BasicShadowableLayer);
|
|
}
|
|
|
|
}
|
|
}
|