LCOV - code coverage report
Current view: directory - widget/shared - nsShmImage.h (source / functions) Found Hit Coverage
Test: app.info Lines: 12 0 0.0 %
Date: 2012-06-02 Functions: 5 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2                 :  *
       3                 :  * ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is the Mozilla browser.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  * Netscape Communications Corporation.
      20                 :  * Portions created by the Initial Developer are Copyright (C) 1999
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      24                 :  *   Chris Jones <jones.chris.g@gmail.com>
      25                 :  *   Oleg Romashin <romaxa@gmail.com>
      26                 :  *
      27                 :  * Alternatively, the contents of this file may be used under the terms of
      28                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      29                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      30                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      31                 :  * of those above. If you wish to allow use of your version of this file only
      32                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      33                 :  * use your version of this file under the terms of the MPL, indicate your
      34                 :  * decision by deleting the provisions above and replace them with the notice
      35                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      36                 :  * the provisions above, a recipient may use your version of this file under
      37                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      38                 :  *
      39                 :  * ***** END LICENSE BLOCK ***** */
      40                 : 
      41                 : #ifndef __mozilla_widget_nsShmImage_h__
      42                 : #define __mozilla_widget_nsShmImage_h__
      43                 : 
      44                 : #include "mozilla/ipc/SharedMemorySysV.h"
      45                 : 
      46                 : #if defined(MOZ_X11) && defined(MOZ_HAVE_SHAREDMEMORYSYSV)
      47                 : #  define MOZ_HAVE_SHMIMAGE
      48                 : #endif
      49                 : 
      50                 : #ifdef MOZ_HAVE_SHMIMAGE
      51                 : 
      52                 : #include "nsIWidget.h"
      53                 : #include "gfxASurface.h"
      54                 : 
      55                 : #include <X11/Xlib.h>
      56                 : #include <X11/Xutil.h>
      57                 : #include <X11/extensions/XShm.h>
      58                 : 
      59                 : #if defined(MOZ_WIDGET_GTK2) || defined(MOZ_WIDGET_GTK3)
      60                 : #define DISPLAY gdk_x11_get_default_xdisplay
      61                 : #elif defined(MOZ_WIDGET_QT)
      62                 : #include "QX11Info"
      63                 : #define DISPLAY QX11Info().display
      64                 : #endif
      65                 : 
      66                 : class QRect;
      67                 : class QWidget;
      68                 : 
      69                 : class nsShmImage {
      70               0 :     NS_INLINE_DECL_REFCOUNTING(nsShmImage)
      71                 : 
      72                 :     typedef mozilla::ipc::SharedMemorySysV SharedMemorySysV;
      73                 : 
      74                 : public:
      75                 :     typedef gfxASurface::gfxImageFormat Format;
      76                 : 
      77                 :     static bool UseShm();
      78                 :     static already_AddRefed<nsShmImage>
      79                 :         Create(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth);
      80                 :     static already_AddRefed<gfxASurface>
      81                 :         EnsureShmImage(const gfxIntSize& aSize, Visual* aVisual, unsigned int aDepth,
      82                 :                        nsRefPtr<nsShmImage>& aImage);
      83                 : 
      84               0 :     ~nsShmImage() {
      85               0 :         if (mImage) {
      86               0 :             XSync(DISPLAY(), False);
      87               0 :             if (mXAttached) {
      88               0 :                 XShmDetach(DISPLAY(), &mInfo);
      89                 :             }
      90               0 :             XDestroyImage(mImage);
      91                 :         }
      92               0 :     }
      93                 : 
      94                 :     already_AddRefed<gfxASurface> AsSurface();
      95                 : 
      96                 : #if defined(MOZ_WIDGET_GTK2)
      97                 :     void Put(GdkWindow* aWindow, GdkRectangle* aRects, GdkRectangle* aEnd);
      98                 : #elif defined(MOZ_WIDGET_GTK3)
      99                 :     void Put(GdkWindow* aWindow, cairo_rectangle_list_t* aRects);
     100                 : #elif defined(MOZ_WIDGET_QT)
     101                 :     void Put(QWidget* aWindow, QRect& aRect);
     102                 : #endif
     103                 : 
     104               0 :     gfxIntSize Size() const { return mSize; }
     105                 : 
     106                 : private:
     107               0 :     nsShmImage()
     108                 :         : mImage(nsnull)
     109               0 :         , mXAttached(false)
     110               0 :     { mInfo.shmid = SharedMemorySysV::NULLHandle(); }
     111                 : 
     112                 :     nsRefPtr<SharedMemorySysV>   mSegment;
     113                 :     XImage*                      mImage;
     114                 :     XShmSegmentInfo              mInfo;
     115                 :     gfxIntSize                   mSize;
     116                 :     Format                       mFormat;
     117                 :     bool                         mXAttached;
     118                 : };
     119                 : 
     120                 : #endif // MOZ_HAVE_SHMIMAGE
     121                 : 
     122                 : #endif

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