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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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33
widget/WindowSurfaceX11SHM.cpp Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 "WindowSurfaceX11SHM.h"
namespace mozilla {
namespace widget {
WindowSurfaceX11SHM::WindowSurfaceX11SHM(Display* aDisplay, Drawable aWindow,
Visual* aVisual, unsigned int aDepth)
{
mFrontImage = new nsShmImage(aDisplay, aWindow, aVisual, aDepth);
mBackImage = new nsShmImage(aDisplay, aWindow, aVisual, aDepth);
}
already_AddRefed<gfx::DrawTarget>
WindowSurfaceX11SHM::Lock(const LayoutDeviceIntRegion& aRegion)
{
mBackImage.swap(mFrontImage);
return mBackImage->CreateDrawTarget(aRegion);
}
void
WindowSurfaceX11SHM::Commit(const LayoutDeviceIntRegion& aInvalidRegion)
{
mBackImage->Put(aInvalidRegion);
}
} // namespace widget
} // namespace mozilla