gecko-dev/gfx/layers/basic/BasicImageLayer.cpp
Daniel Holbert 126bd9e1a4 Bug 1412427 part 8: (automated patch) Switch a bunch of C++ files in gfx to use our standard mode lines. r=jrmuizel
This patch was generated automatically by the "modeline.py" script, available
here: https://github.com/amccreight/moz-source-tools/blob/master/modeline.py

For every file that is modified in this patch, the changes are as follows:
 (1) The patch changes the file to use the exact C++ mode lines from the
     Mozilla coding style guide, available here:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Mode_Line

 (2) The patch deletes any blank lines between the mode line & the MPL
     boilerplate comment.

 (3) If the file previously had the mode lines and MPL boilerplate in a
     single contiguous C++ comment, then the patch splits them into
     separate C++ comments, to match the boilerplate in the coding style.

MozReview-Commit-ID: 77D61xpSmIl

--HG--
extra : rebase_source : c6162fa3cf539a07177a19838324bf368faa162b
2017-10-27 16:10:06 -07:00

121 lines
3.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "BasicLayersImpl.h" // for FillRectWithMask, etc
#include "ImageContainer.h" // for AutoLockImage, etc
#include "ImageLayers.h" // for ImageLayer
#include "Layers.h" // for Layer (ptr only), etc
#include "basic/BasicImplData.h" // for BasicImplData
#include "basic/BasicLayers.h" // for BasicLayerManager
#include "mozilla/mozalloc.h" // for operator new
#include "nsCOMPtr.h" // for already_AddRefed
#include "nsDebug.h" // for NS_ASSERTION
#include "nsISupportsImpl.h" // for gfxPattern::Release, etc
#include "nsRect.h" // for mozilla::gfx::IntRect
#include "nsRegion.h" // for nsIntRegion
#include "mozilla/gfx/Point.h" // for IntSize
using namespace mozilla::gfx;
namespace mozilla {
namespace layers {
class BasicImageLayer : public ImageLayer, public BasicImplData {
public:
explicit BasicImageLayer(BasicLayerManager* aLayerManager) :
ImageLayer(aLayerManager, static_cast<BasicImplData*>(this)),
mSize(-1, -1)
{
MOZ_COUNT_CTOR(BasicImageLayer);
}
protected:
~BasicImageLayer() override
{
MOZ_COUNT_DTOR(BasicImageLayer);
}
public:
void SetVisibleRegion(const LayerIntRegion& aRegion) override
{
NS_ASSERTION(BasicManager()->InConstruction(),
"Can only set properties in construction phase");
ImageLayer::SetVisibleRegion(aRegion);
}
void Paint(DrawTarget* aDT,
const gfx::Point& aDeviceOffset,
Layer* aMaskLayer) override;
already_AddRefed<SourceSurface> GetAsSourceSurface() override;
protected:
BasicLayerManager* BasicManager()
{
return static_cast<BasicLayerManager*>(mManager);
}
gfx::IntSize mSize;
};
void
BasicImageLayer::Paint(DrawTarget* aDT,
const gfx::Point& aDeviceOffset,
Layer* aMaskLayer)
{
if (IsHidden() || !mContainer) {
return;
}
RefPtr<ImageFactory> originalIF = mContainer->GetImageFactory();
mContainer->SetImageFactory(mManager->IsCompositingCheap() ? nullptr : BasicManager()->GetImageFactory());
AutoLockImage autoLock(mContainer);
Image *image = autoLock.GetImage(BasicManager()->GetCompositionTime());
if (!image) {
mContainer->SetImageFactory(originalIF);
return;
}
RefPtr<gfx::SourceSurface> surface = image->GetAsSourceSurface();
if (!surface || !surface->IsValid()) {
mContainer->SetImageFactory(originalIF);
return;
}
gfx::IntSize size = mSize = surface->GetSize();
FillRectWithMask(aDT, aDeviceOffset, Rect(0, 0, size.width, size.height),
surface, mSamplingFilter,
DrawOptions(GetEffectiveOpacity(), GetEffectiveOperator(this)),
aMaskLayer);
mContainer->SetImageFactory(originalIF);
}
already_AddRefed<SourceSurface>
BasicImageLayer::GetAsSourceSurface()
{
if (!mContainer) {
return nullptr;
}
AutoLockImage lockImage(mContainer);
Image* image = lockImage.GetImage();
if (!image) {
return nullptr;
}
return image->GetAsSourceSurface();
}
already_AddRefed<ImageLayer>
BasicLayerManager::CreateImageLayer()
{
NS_ASSERTION(InConstruction(), "Only allowed in construction phase");
RefPtr<ImageLayer> layer = new BasicImageLayer(this);
return layer.forget();
}
} // namespace layers
} // namespace mozilla