mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-24 21:31:04 +00:00
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/* -*- 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/. */
|
|
|
|
#ifndef __mozilla_widget_nsShmImage_h__
|
|
#define __mozilla_widget_nsShmImage_h__
|
|
|
|
#if defined(MOZ_X11)
|
|
# define MOZ_HAVE_SHMIMAGE
|
|
#endif
|
|
|
|
#ifdef MOZ_HAVE_SHMIMAGE
|
|
|
|
#include "mozilla/gfx/2D.h"
|
|
#include "nsIWidget.h"
|
|
#include "nsAutoPtr.h"
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/extensions/XShm.h>
|
|
|
|
#ifdef MOZ_WIDGET_QT
|
|
class QRect;
|
|
class QWindow;
|
|
#endif
|
|
|
|
class nsShmImage {
|
|
// bug 1168843, compositor thread may create shared memory instances that are destroyed by main thread on shutdown, so this must use thread-safe RC to avoid hitting assertion
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsShmImage)
|
|
|
|
public:
|
|
static bool UseShm();
|
|
static already_AddRefed<mozilla::gfx::DrawTarget>
|
|
EnsureShmImage(const mozilla::LayoutDeviceIntSize& aSize,
|
|
Display* aDisplay, Visual* aVisual, unsigned int aDepth,
|
|
RefPtr<nsShmImage>& aImage);
|
|
|
|
already_AddRefed<mozilla::gfx::DrawTarget> CreateDrawTarget();
|
|
|
|
#ifdef MOZ_WIDGET_GTK
|
|
void Put(Display* aDisplay, Drawable aWindow,
|
|
const mozilla::LayoutDeviceIntRegion& aRegion);
|
|
#elif defined(MOZ_WIDGET_QT)
|
|
void Put(QWindow* aWindow, QRect& aRect);
|
|
#endif
|
|
|
|
mozilla::LayoutDeviceIntSize Size() const { return mSize; }
|
|
|
|
private:
|
|
nsShmImage()
|
|
: mImage(nullptr)
|
|
, mDisplay(nullptr)
|
|
, mFormat(mozilla::gfx::SurfaceFormat::UNKNOWN)
|
|
, mXAttached(false)
|
|
{ mInfo.shmid = -1; }
|
|
|
|
~nsShmImage();
|
|
|
|
bool CreateShmSegment();
|
|
void DestroyShmSegment();
|
|
|
|
bool CreateImage(const mozilla::LayoutDeviceIntSize& aSize,
|
|
Display* aDisplay, Visual* aVisual, unsigned int aDepth);
|
|
|
|
XImage* mImage;
|
|
Display* mDisplay;
|
|
XShmSegmentInfo mInfo;
|
|
mozilla::LayoutDeviceIntSize mSize;
|
|
mozilla::gfx::SurfaceFormat mFormat;
|
|
bool mXAttached;
|
|
};
|
|
|
|
#endif // MOZ_HAVE_SHMIMAGE
|
|
|
|
#endif
|