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authorAnders Bakken <anders.bakken@nokia.com>2009-05-04 17:38:37 (GMT)
committerAnders Bakken <anders.bakken@nokia.com>2009-05-04 17:48:02 (GMT)
commit885adf0541e4b709bf5a3774361e85db2a35fc47 (patch)
tree6f4ca4ef6870876d4286d2f1ba4939de95a55e21 /src
parenta5c1161fb6bb2a24cebc104bc2a9b8def0a6e466 (diff)
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Lock for read only when possible
From benchmarking I've established that surface->Lock(DSLF_READ) is faster than surface->Lock(DSLF_WRITE) which is faster than surface->Lock(DSLF_READ|DSLF_WRITE). This patch will make us Lock for read only, when possible. Reviewed-by: Donald <qt-info@nokia.com>
Diffstat (limited to 'src')
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.cpp21
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h7
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp4
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp12
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbpixmap.h3
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp6
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbscreen.h2
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp2
-rw-r--r--src/plugins/gfxdrivers/directfb/qdirectfbsurface.h8
9 files changed, 40 insertions, 25 deletions
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.cpp
index 924090c..9796280 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.cpp
@@ -56,15 +56,20 @@ IDirectFBSurface *QDirectFBPaintDevice::directFBSurface() const
}
-void QDirectFBPaintDevice::lockDirectFB()
+void QDirectFBPaintDevice::lockDirectFB(uint flags)
{
- if (lockedImage)
- return; // Already locked
-
- if (uchar *mem = QDirectFBScreen::lockSurface(dfbSurface, DSLF_WRITE, &bpl)) {
+ if (lockedImage) {
+ if (lockFlags & flags)
+ return;
+ unlockDirectFB();
+ }
+ if (uchar *mem = QDirectFBScreen::lockSurface(dfbSurface, flags, &bpl)) {
const QSize s = size();
lockedImage = new QImage(mem, s.width(), s.height(), bpl,
QDirectFBScreen::getImageFormat(dfbSurface));
+ lockFlags = flags;
+ } else {
+ lockFlags = 0;
}
}
@@ -80,10 +85,10 @@ void QDirectFBPaintDevice::unlockDirectFB()
}
-void* QDirectFBPaintDevice::memory() const
+void *QDirectFBPaintDevice::memory() const
{
QDirectFBPaintDevice* that = const_cast<QDirectFBPaintDevice*>(this);
- that->lockDirectFB();
+ that->lockDirectFB(DSLF_READ|DSLF_WRITE);
Q_ASSERT(that->lockedImage);
return that->lockedImage->bits();
}
@@ -101,7 +106,7 @@ int QDirectFBPaintDevice::bytesPerLine() const
// Can only get the stride when we lock the surface
Q_ASSERT(!lockedImage);
QDirectFBPaintDevice* that = const_cast<QDirectFBPaintDevice*>(this);
- that->lockDirectFB();
+ that->lockDirectFB(DSLF_READ);
Q_ASSERT(bpl != -1);
}
return bpl;
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h b/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h
index a11064b..1709d69 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h
@@ -58,7 +58,7 @@ public:
IDirectFBSurface *directFBSurface() const;
- void lockDirectFB();
+ void lockDirectFB(uint flags);
void unlockDirectFB();
inline bool forceRasterPrimitives() const { return forceRaster; }
@@ -76,7 +76,9 @@ protected:
dfbSurface(0),
lockedImage(0),
screen(scr),
- forceRaster(false) {}
+ forceRaster(false),
+ lockFlags(0)
+ {}
inline int dotsPerMeterX() const
{
@@ -92,6 +94,7 @@ protected:
QDirectFBScreen *screen;
int bpl;
bool forceRaster;
+ uint lockFlags;
private:
Q_DISABLE_COPY(QDirectFBPaintDevice)
};
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
index 14d2146..e9e2b1f 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
@@ -1040,7 +1040,7 @@ void QDirectFBPaintEngine::drawPixmap(const QRectF &r, const QPixmap &pixmap,
QRasterPaintEngine::drawPixmap(r, pixmap, sr);
} else if (!d->dfbCanHandleClip(r) || d->matrixRotShear) {
RASTERFALLBACK(DRAW_PIXMAP, r, pixmap.size(), sr);
- const QImage *img = static_cast<QDirectFBPixmapData*>(pixmap.pixmapData())->buffer();
+ const QImage *img = static_cast<QDirectFBPixmapData*>(pixmap.pixmapData())->buffer(DSLF_READ);
d->lock();
QRasterPaintEngine::drawImage(r, *img, sr);
} else {
@@ -1066,7 +1066,7 @@ void QDirectFBPaintEngine::drawTiledPixmap(const QRectF &r,
QRasterPaintEngine::drawTiledPixmap(r, pixmap, sp);
} else if (!d->dfbCanHandleClip(r) || d->matrixRotShear || !sp.isNull()) {
RASTERFALLBACK(DRAW_TILED_PIXMAP, r, pixmap.size(), sp);
- const QImage *img = static_cast<QDirectFBPixmapData*>(pixmap.pixmapData())->buffer();
+ const QImage *img = static_cast<QDirectFBPixmapData*>(pixmap.pixmapData())->buffer(DSLF_READ);
d->lock();
QRasterPixmapData *data = new QRasterPixmapData(QPixmapData::PixmapType);
data->fromImage(*img, Qt::AutoColor);
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
index ea9bb3a..f7c428b 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
@@ -357,7 +357,7 @@ QImage QDirectFBPixmapData::toImage() const
return img->copy();
}
-QPaintEngine* QDirectFBPixmapData::paintEngine() const
+QPaintEngine *QDirectFBPixmapData::paintEngine() const
{
if (!engine) {
// QDirectFBPixmapData is also a QCustomRasterPaintDevice, so pass
@@ -368,10 +368,15 @@ QPaintEngine* QDirectFBPixmapData::paintEngine() const
return engine;
}
+QImage *QDirectFBPixmapData::buffer()
+{
+ lockDirectFB(DSLF_READ|DSLF_WRITE);
+ return lockedImage;
+}
-QImage* QDirectFBPixmapData::buffer()
+QImage * QDirectFBPixmapData::buffer(uint lockFlags)
{
- lockDirectFB();
+ lockDirectFB(lockFlags);
return lockedImage;
}
@@ -381,3 +386,4 @@ void QDirectFBPixmapData::invalidate()
alpha = false;
format = QImage::Format_Invalid;
}
+
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.h b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.h
index 6cfafcd..697e5ce 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.h
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.h
@@ -69,7 +69,8 @@ public:
Qt::TransformationMode mode) const;
QImage toImage() const;
QPaintEngine* paintEngine() const;
- QImage *buffer();
+ virtual QImage *buffer();
+ QImage *buffer(uint lockFlags);
// Pure virtual in QPixmapData, so re-implement here and delegate to QDirectFBPaintDevice
int metric(QPaintDevice::PaintDeviceMetric m) const {return QDirectFBPaintDevice::metric(m);}
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp
index c1b75c5..9ec5f5f 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp
@@ -1336,12 +1336,12 @@ bool QDirectFBScreen::initSurfaceDescriptionPixelFormat(DFBSurfaceDescription *d
return true;
}
-uchar *QDirectFBScreen::lockSurface(IDirectFBSurface *surface, DFBSurfaceLockFlags flags, int *bpl)
+uchar *QDirectFBScreen::lockSurface(IDirectFBSurface *surface, uint flags, int *bpl)
{
void *mem;
- const DFBResult result = surface->Lock(surface, flags, static_cast<void**>(&mem), bpl);
+ const DFBResult result = surface->Lock(surface, static_cast<DFBSurfaceLockFlags>(flags), static_cast<void**>(&mem), bpl);
if (result != DFB_OK) {
- DirectFBError("QDirectFBPixmapData::lockSurface()", result);
+ DirectFBError("QDirectFBScreen::lockSurface()", result);
}
return reinterpret_cast<uchar*>(mem);
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.h b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.h
index 42d0ebe..e91a06b 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.h
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.h
@@ -137,7 +137,7 @@ public:
const QImage &image);
#endif
- static uchar *lockSurface(IDirectFBSurface *surface, DFBSurfaceLockFlags flags, int *bpl = 0);
+ static uchar *lockSurface(IDirectFBSurface *surface, uint flags, int *bpl = 0);
private:
void compose(const QRegion &r);
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp
index beb9b5f..827e10d 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbsurface.cpp
@@ -423,7 +423,7 @@ void QDirectFBSurface::endPaint(const QRegion &)
}
-QImage* QDirectFBSurface::buffer(const QWidget *widget)
+QImage *QDirectFBSurface::buffer(const QWidget *widget)
{
if (!lockedImage)
return 0;
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbsurface.h b/src/plugins/gfxdrivers/directfb/qdirectfbsurface.h
index 54c14a5..c554096 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbsurface.h
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbsurface.h
@@ -58,7 +58,7 @@ QT_BEGIN_HEADER
QT_MODULE(Gui)
-class QDirectFBSurface: public QWSWindowSurface, public QDirectFBPaintDevice
+class QDirectFBSurface : public QWSWindowSurface, public QDirectFBPaintDevice
{
public:
QDirectFBSurface(DFBSurfaceFlipFlags flipFlags, QDirectFBScreen* scr);
@@ -79,15 +79,15 @@ public:
QRegion move(const QPoint &offset, const QRegion &newClip);
QImage image() const { return QImage(); }
- QPaintDevice* paintDevice() { return this; }
- QPaintEngine* paintEngine() const;
+ QPaintDevice *paintDevice() { return this; }
+ QPaintEngine *paintEngine() const;
void flush(QWidget *widget, const QRegion &region, const QPoint &offset);
void beginPaint(const QRegion &);
void endPaint(const QRegion &);
- QImage* buffer(const QWidget *widget);
+ QImage *buffer(const QWidget *widget);
private:
#ifndef QT_NO_DIRECTFB_WM