The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/widget/shared/nsShmImage.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,90 @@
     1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
     1.5 + *
     1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#ifndef __mozilla_widget_nsShmImage_h__
    1.11 +#define __mozilla_widget_nsShmImage_h__
    1.12 +
    1.13 +#include "mozilla/ipc/SharedMemorySysV.h"
    1.14 +
    1.15 +#if defined(MOZ_X11) && defined(MOZ_HAVE_SHAREDMEMORYSYSV)
    1.16 +#  define MOZ_HAVE_SHMIMAGE
    1.17 +#endif
    1.18 +
    1.19 +#ifdef MOZ_HAVE_SHMIMAGE
    1.20 +
    1.21 +#include "nsIWidget.h"
    1.22 +#include "gfxTypes.h"
    1.23 +#include "nsAutoPtr.h"
    1.24 +
    1.25 +#include "mozilla/X11Util.h"
    1.26 +#include <X11/Xlib.h>
    1.27 +#include <X11/Xutil.h>
    1.28 +#include <X11/extensions/XShm.h>
    1.29 +
    1.30 +#if defined(MOZ_WIDGET_GTK)
    1.31 +#define DISPLAY gdk_x11_get_default_xdisplay
    1.32 +#elif defined(MOZ_WIDGET_QT)
    1.33 +#define DISPLAY mozilla::DefaultXDisplay
    1.34 +#endif
    1.35 +
    1.36 +class QRect;
    1.37 +class QWindow;
    1.38 +class gfxASurface;
    1.39 +
    1.40 +class nsShmImage {
    1.41 +    NS_INLINE_DECL_REFCOUNTING(nsShmImage)
    1.42 +
    1.43 +    typedef mozilla::ipc::SharedMemorySysV SharedMemorySysV;
    1.44 +
    1.45 +public:
    1.46 +    typedef gfxImageFormat Format;
    1.47 +
    1.48 +    static bool UseShm();
    1.49 +    static already_AddRefed<nsShmImage>
    1.50 +        Create(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth);
    1.51 +    static already_AddRefed<gfxASurface>
    1.52 +        EnsureShmImage(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth,
    1.53 +                       nsRefPtr<nsShmImage>& aImage);
    1.54 +
    1.55 +    ~nsShmImage() {
    1.56 +        if (mImage) {
    1.57 +            mozilla::FinishX(DISPLAY());
    1.58 +            if (mXAttached) {
    1.59 +                XShmDetach(DISPLAY(), &mInfo);
    1.60 +            }
    1.61 +            XDestroyImage(mImage);
    1.62 +        }
    1.63 +    }
    1.64 +
    1.65 +    already_AddRefed<gfxASurface> AsSurface();
    1.66 +
    1.67 +#if (MOZ_WIDGET_GTK == 2)
    1.68 +    void Put(GdkWindow* aWindow, GdkRectangle* aRects, GdkRectangle* aEnd);
    1.69 +#elif (MOZ_WIDGET_GTK == 3)
    1.70 +    void Put(GdkWindow* aWindow, cairo_rectangle_list_t* aRects);
    1.71 +#elif defined(MOZ_WIDGET_QT)
    1.72 +    void Put(QWindow* aWindow, QRect& aRect);
    1.73 +#endif
    1.74 +
    1.75 +    gfxIntSize Size() const { return mSize; }
    1.76 +
    1.77 +private:
    1.78 +    nsShmImage()
    1.79 +        : mImage(nullptr)
    1.80 +        , mXAttached(false)
    1.81 +    { mInfo.shmid = SharedMemorySysV::NULLHandle(); }
    1.82 +
    1.83 +    nsRefPtr<SharedMemorySysV>   mSegment;
    1.84 +    XImage*                      mImage;
    1.85 +    XShmSegmentInfo              mInfo;
    1.86 +    gfxIntSize                   mSize;
    1.87 +    Format                       mFormat;
    1.88 +    bool                         mXAttached;
    1.89 +};
    1.90 +
    1.91 +#endif // MOZ_HAVE_SHMIMAGE
    1.92 +
    1.93 +#endif