Fix a rendering issue

Make sure surfaces always are locked when used as source for something.

Reviewed-by: TrustMe

2 files changed, 8 insertions, 3 deletions

diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
index c77cd78ae8..3edef8f052 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
@@ -567,6 +567,7 @@ void QDirectFBPaintEngine::drawPixmap(const QRectF &r, const QPixmap &pixmap,
         QPixmapData *data = pixmap.pixmapData();
         Q_ASSERT(data->classId() == QPixmapData::DirectFBClass);
         QDirectFBPixmapData *dfbData = static_cast<QDirectFBPixmapData*>(data);
+        dfbData->unlockDirectFB();
         IDirectFBSurface *s = dfbData->directFBSurface();
         d->blit(r, s, sr);
     }
@@ -598,6 +599,10 @@ void QDirectFBPaintEngine::drawTiledPixmap(const QRectF &r,
         QRasterPaintEngine::drawTiledPixmap(r, pix, sp);
     } else {
         d->unlock();
+        QPixmapData *data = pixmap.pixmapData();
+        Q_ASSERT(data->classId() == QPixmapData::DirectFBClass);
+        QDirectFBPixmapData *dfbData = static_cast<QDirectFBPixmapData*>(data);
+        dfbData->unlockDirectFB();
         d->drawTiledPixmap(r, pixmap);
     }
 }
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
index c2048d8a30..ce3d6e499b 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
@@ -81,11 +81,9 @@ void QDirectFBPixmapData::resize(int width, int height)
         qWarning("QDirectFBPixmapData::resize(): Unable to allocate surface");
         return;
     }
-
     setSerialNumber(++global_ser_no);
 }
 
-
 // mostly duplicated from qimage.cpp (QImageData::checkForAlphaPixels)
 static bool checkForAlphaPixels(const QImage &img)
 {
@@ -200,6 +198,7 @@ void QDirectFBPixmapData::copy(const QPixmapData *data, const QRect &rect)
         QPixmapData::copy(data, rect);
         return;
     }
+    unlockDirectFB();
 
     IDirectFBSurface *src = static_cast<const QDirectFBPixmapData*>(data)->directFBSurface();
     alpha = data->hasAlphaChannel();
@@ -282,10 +281,10 @@ void QDirectFBPixmapData::fill(const QColor &color)
 QPixmap QDirectFBPixmapData::transformed(const QTransform &transform,
                                          Qt::TransformationMode mode) const
 {
+    QDirectFBPixmapData *that = const_cast<QDirectFBPixmapData*>(this);
     if (!dfbSurface || transform.type() != QTransform::TxScale
         || mode != Qt::FastTransformation)
     {
-        QDirectFBPixmapData *that = const_cast<QDirectFBPixmapData*>(this);
         const QImage *image = that->buffer();
         Q_ASSERT(image);
         const QImage transformed = image->transformed(transform, mode);
@@ -294,6 +293,7 @@ QPixmap QDirectFBPixmapData::transformed(const QTransform &transform,
         data->fromImage(transformed, Qt::AutoColor);
         return QPixmap(data);
     }
+    that->unlockDirectFB();
 
     int w, h;
     dfbSurface->GetSize(dfbSurface, &w, &h);