Merge branch 'master' of git://scm.dev.nokia.troll.no/qt/qt-releng-team

* 'master' of git://scm.dev.nokia.troll.no/qt/qt-releng-team: (378 commits)
  Updated DEF files for Symbian
  Designer: Remember default of main container's object name.
  Designer: Do not translate page object names of QMdiArea.
  qmake vcproj generator: do not insert $(INHERIT)
  Remove undefined symbol from tst_qwindowsurface.
  Fix def files
  Changes to driver workarounds.
  Switch to raster also when last window is destroyed (on MeeGo).
  Fixes detected by the static-check
  Fix accidental population of the disk cache with partial content
  Fix disk cache interaction for range retrieval HTTP requests.
  Fixup license headers in Lighthouse plugins
  Fixes: some text fields in PNG image files were not read
  Clipboard/Windows: Fix a hang when sending to non-responsive clients.
  Mac: add autorelease pools to create_sys
  Don't skip remaining events on unhandled events in xcb backend.
  PathView doesn't update if preferred highlight range changes.
  Image.PreserveAspectFit has unexpected effect on Image's sourceSize
  Doc improvement for Image.fillMode.
  QDeclarativeView flickers when composited on MeeGo
  ...

1 files changed, 220 insertions, 0 deletions

diff --git a/src/plugins/platforms/xcb/qxcbwindowsurface.cpp b/src/plugins/platforms/xcb/qxcbwindowsurface.cpp
new file mode 100644
index 0000000..7fed230
--- /dev/null
+++ b/src/plugins/platforms/xcb/qxcbwindowsurface.cpp
@@ -0,0 +1,220 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qxcbwindowsurface.h"
+
+#include "qxcbconnection.h"
+#include "qxcbscreen.h"
+#include "qxcbwindow.h"
+
+#include <xcb/shm.h>
+#include <xcb/xcb_image.h>
+
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+#include <stdio.h>
+
+class QXcbShmImage : public QXcbObject
+{
+public:
+    QXcbShmImage(QXcbScreen *connection, const QSize &size);
+    ~QXcbShmImage() { destroy(); }
+
+    QImage *image() { return &m_qimage; }
+
+    void put(xcb_window_t window, const QPoint &dst, const QRect &source);
+    void preparePaint(const QRegion &region);
+
+private:
+    void destroy();
+
+    xcb_shm_segment_info_t m_shm_info;
+
+    xcb_image_t *m_xcb_image;
+
+    QImage m_qimage;
+
+    xcb_gcontext_t m_gc;
+    xcb_window_t m_gc_window;
+
+    QRegion m_dirty;
+};
+
+QXcbShmImage::QXcbShmImage(QXcbScreen *screen, const QSize &size)
+    : QXcbObject(screen->connection())
+    , m_gc(0)
+    , m_gc_window(0)
+{
+    m_xcb_image = xcb_image_create_native(xcb_connection(),
+                                          size.width(),
+                                          size.height(),
+                                          XCB_IMAGE_FORMAT_Z_PIXMAP,
+                                          screen->depth(),
+                                          0,
+                                          ~0,
+                                          0);
+    m_shm_info.shmid = shmget (IPC_PRIVATE,
+          m_xcb_image->stride * m_xcb_image->height, IPC_CREAT|0777);
+
+    m_shm_info.shmaddr = m_xcb_image->data = (quint8 *)shmat (m_shm_info.shmid, 0, 0);
+    m_shm_info.shmseg = xcb_generate_id(xcb_connection());
+
+    xcb_shm_attach(xcb_connection(), m_shm_info.shmseg, m_shm_info.shmid, false);
+
+    m_qimage = QImage( (uchar*) m_xcb_image->data, m_xcb_image->width, m_xcb_image->height, m_xcb_image->stride, screen->format());
+}
+
+void QXcbShmImage::destroy()
+{
+    xcb_shm_detach(xcb_connection(), m_shm_info.shmseg);
+    xcb_image_destroy(m_xcb_image);
+    shmdt(m_shm_info.shmaddr);
+    shmctl(m_shm_info.shmid, IPC_RMID, 0);
+
+    xcb_free_gc(xcb_connection(), m_gc);
+}
+
+void QXcbShmImage::put(xcb_window_t window, const QPoint &target, const QRect &source)
+{
+    if (m_gc_window != window) {
+        xcb_free_gc(xcb_connection(), m_gc);
+
+        m_gc = xcb_generate_id(xcb_connection());
+        xcb_create_gc(xcb_connection(), m_gc, window, 0, 0);
+
+        m_gc_window = window;
+    }
+
+    xcb_image_shm_put(xcb_connection(),
+                      window,
+                      m_gc,
+                      m_xcb_image,
+                      m_shm_info,
+                      source.x(),
+                      source.y(),
+                      target.x(),
+                      target.y(),
+                      source.width(),
+                      source.height(),
+                      false);
+
+    m_dirty = m_dirty | source;
+
+    xcb_flush(xcb_connection());
+}
+
+void QXcbShmImage::preparePaint(const QRegion &region)
+{
+    // to prevent X from reading from the image region while we're writing to it
+    if (m_dirty.intersects(region)) {
+        // from xcb_aux_sync
+        free(xcb_get_input_focus_reply(xcb_connection(), xcb_get_input_focus(xcb_connection()), 0));
+        m_dirty = QRegion();
+    }
+}
+
+QXcbWindowSurface::QXcbWindowSurface(QWidget *widget, bool setDefaultSurface)
+    : QWindowSurface(widget, setDefaultSurface)
+    , m_image(0)
+{
+    setStaticContentsSupport(false);
+    setPartialUpdateSupport(true);
+
+    QXcbScreen *screen = static_cast<QXcbScreen *>(QPlatformScreen::platformScreenForWidget(widget));
+    setConnection(screen->connection());
+}
+
+QXcbWindowSurface::~QXcbWindowSurface()
+{
+}
+
+QPaintDevice *QXcbWindowSurface::paintDevice()
+{
+    return m_image->image();
+}
+
+void QXcbWindowSurface::beginPaint(const QRegion &region)
+{
+    m_image->preparePaint(region);
+}
+
+void QXcbWindowSurface::flush(QWidget *widget, const QRegion &region, const QPoint &offset)
+{
+    Q_UNUSED(region);
+    Q_UNUSED(offset);
+
+    QXcbWindow *window = static_cast<QXcbWindow *>(widget->window()->platformWindow());
+
+    extern QWidgetData* qt_widget_data(QWidget *);
+    QPoint widgetOffset = qt_qwidget_data(widget)->wrect.topLeft();
+
+    QVector<QRect> rects = region.rects();
+    for (int i = 0; i < rects.size(); ++i)
+        m_image->put(window->window(), rects.at(i).topLeft() - widgetOffset, rects.at(i).translated(offset));
+}
+
+void QXcbWindowSurface::resize(const QSize &size)
+{
+    QWindowSurface::resize(size);
+
+    QXcbScreen *screen = static_cast<QXcbScreen *>(QPlatformScreen::platformScreenForWidget(window()));
+
+    delete m_image;
+    m_image = new QXcbShmImage(screen, size);
+}
+
+extern void qt_scrollRectInImage(QImage &img, const QRect &rect, const QPoint &offset);
+
+bool QXcbWindowSurface::scroll(const QRegion &area, int dx, int dy)
+{
+    if (m_image->image()->isNull())
+        return false;
+
+    m_image->preparePaint(area);
+
+    const QVector<QRect> rects = area.rects();
+    for (int i = 0; i < rects.size(); ++i)
+        qt_scrollRectInImage(*m_image->image(), rects.at(i), QPoint(dx, dy));
+
+    return true;
+}
+