Remove all force raster on RGB32 stuff

Previously we allowed RGB32 but forced fallbacks for all drawing
operations. It turns out blitting operations doesn't work right either
so we'll rather just disallow this format altogether. See also
36ae58e7a6a888d3ae7bd162d59daada550bbfb1

Reviewed-by: Donald <qt-info@nokia.com>
(cherry picked from commit 36bc35c451b6123b0e237430343a80db8a600b24)

4 files changed, 32 insertions, 75 deletions

diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h b/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h
index c2f3285..a0a8735 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.h
@@ -61,8 +61,6 @@ public:
     void lockDirectFB(uint flags);
     void unlockDirectFB();
 
-    inline bool forceRasterPrimitives() const { return forceRaster; }
-
     // Reimplemented from QCustomRasterPaintDevice:
     void* memory() const;
     QImage::Format format() const;
@@ -77,7 +75,6 @@ protected:
           dfbSurface(0),
           lockedImage(0),
           screen(scr),
-          forceRaster(false),
           lock(0),
           mem(0)
     {}
@@ -95,7 +92,6 @@ protected:
     QImage *lockedImage;
     QDirectFBScreen *screen;
     int bpl;
-    bool forceRaster;
     uint lock;
     uchar *mem;
 private:
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
index f6a715f..bbcbe65 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintengine.cpp
@@ -81,7 +81,7 @@ template <> inline const bool* ptr<bool>(const bool &) { return 0; }
 template <typename device, typename T1, typename T2, typename T3>
 static void rasterFallbackWarn(const char *msg, const char *func, const device *dev,
                                int scale, bool matrixRotShear, bool simplePen,
-                               bool dfbHandledClip, bool forceRasterPrimitives,
+                               bool dfbHandledClip,
                                const char *nameOne, const T1 &one,
                                const char *nameTwo, const T2 &two,
                                const char *nameThree, const T3 &three)
@@ -98,8 +98,7 @@ static void rasterFallbackWarn(const char *msg, const char *func, const device *
     dbg << "scale" << scale
         << "matrixRotShear" << matrixRotShear
         << "simplePen" << simplePen
-        << "dfbHandledClip" << dfbHandledClip
-        << "forceRasterPrimitives" << forceRasterPrimitives;
+        << "dfbHandledClip" << dfbHandledClip;
 
     const T1 *t1 = ptr(one);
     const T2 *t2 = ptr(two);
@@ -125,7 +124,6 @@ static void rasterFallbackWarn(const char *msg, const char *func, const device *
                            __FUNCTION__, state()->painter->device(),    \
                            d_func()->scale, d_func()->matrixRotShear, \
                            d_func()->simplePen, d_func()->dfbCanHandleClip(), \
-                           d_func()->forceRasterPrimitives,             \
                            #one, one, #two, two, #three, three);        \
     if (op & (QT_DIRECTFB_DISABLE_RASTERFALLBACKS))                     \
         return;
@@ -140,7 +138,6 @@ static void rasterFallbackWarn(const char *msg, const char *func, const device *
                            __FUNCTION__, state()->painter->device(),    \
                            d_func()->scale, d_func()->matrixRotShear, \
                            d_func()->simplePen, d_func()->dfbCanHandleClip(), \
-                           d_func()->forceRasterPrimitives,             \
                            #one, one, #two, two, #three, three);
 #else
 #define RASTERFALLBACK(op, one, two, three)
@@ -263,7 +260,6 @@ private:
     QPen pen;
 
     bool antialiased;
-    bool forceRasterPrimitives;
 
     bool simplePen;
 
@@ -408,8 +404,7 @@ void QDirectFBPaintEngine::drawRects(const QRect *rects, int rectCount)
     d->updateClip();
     const QBrush &brush = state()->brush;
     if (!d->dfbCanHandleClip() || d->matrixRotShear
-        || !d->simplePen || d->forceRasterPrimitives
-        || !d->isSimpleBrush(brush)) {
+        || !d->simplePen || !d->isSimpleBrush(brush)) {
         RASTERFALLBACK(DRAW_RECTS, rectCount, VOID_ARG(), VOID_ARG());
         d->lock();
         QRasterPaintEngine::drawRects(rects, rectCount);
@@ -434,8 +429,7 @@ void QDirectFBPaintEngine::drawRects(const QRectF *rects, int rectCount)
     d->updateClip();
     const QBrush &brush = state()->brush;
     if (!d->dfbCanHandleClip() || d->matrixRotShear
-        || !d->simplePen || d->forceRasterPrimitives
-        || !d->isSimpleBrush(brush)) {
+        || !d->simplePen || !d->isSimpleBrush(brush)) {
         RASTERFALLBACK(DRAW_RECTS, rectCount, VOID_ARG(), VOID_ARG());
         d->lock();
         QRasterPaintEngine::drawRects(rects, rectCount);
@@ -458,7 +452,7 @@ void QDirectFBPaintEngine::drawLines(const QLine *lines, int lineCount)
 {
     Q_D(QDirectFBPaintEngine);
     d->updateClip();
-    if (!d->simplePen || !d->dfbCanHandleClip() || d->forceRasterPrimitives) {
+    if (!d->simplePen || !d->dfbCanHandleClip()) {
         RASTERFALLBACK(DRAW_LINES, lineCount, VOID_ARG(), VOID_ARG());
         d->lock();
         QRasterPaintEngine::drawLines(lines, lineCount);
@@ -476,7 +470,7 @@ void QDirectFBPaintEngine::drawLines(const QLineF *lines, int lineCount)
 {
     Q_D(QDirectFBPaintEngine);
     d->updateClip();
-    if (!d->simplePen || !d->dfbCanHandleClip() || d->forceRasterPrimitives) {
+    if (!d->simplePen || !d->dfbCanHandleClip()) {
         RASTERFALLBACK(DRAW_LINES, lineCount, VOID_ARG(), VOID_ARG());
         d->lock();
         QRasterPaintEngine::drawLines(lines, lineCount);
@@ -691,8 +685,6 @@ void QDirectFBPaintEngine::fillRect(const QRectF &rect, const QBrush &brush)
     if (d->dfbCanHandleClip(rect) && !d->matrixRotShear) {
         switch (brush.style()) {
         case Qt::SolidPattern: {
-            if (d->forceRasterPrimitives)
-                break;
             d->unlock();
             d->setDFBColor(brush.color());
             const QRect r = d->transform.mapRect(rect).toRect();
@@ -720,7 +712,7 @@ void QDirectFBPaintEngine::fillRect(const QRectF &rect, const QColor &color)
 {
     Q_D(QDirectFBPaintEngine);
     d->updateClip();
-    if (!d->dfbCanHandleClip() || d->matrixRotShear || d->forceRasterPrimitives) {
+    if (!d->dfbCanHandleClip() || d->matrixRotShear) {
         RASTERFALLBACK(FILL_RECT, rect, color, VOID_ARG());
         d->lock();
         QRasterPaintEngine::fillRect(rect, color);
@@ -737,38 +729,32 @@ void QDirectFBPaintEngine::drawColorSpans(const QSpan *spans, int count,
                                           uint color)
 {
     Q_D(QDirectFBPaintEngine);
-    if (d->forceRasterPrimitives) {
-        RASTERFALLBACK(DRAW_COLORSPANS, count, color, VOID_ARG());
-        d->lock();
-        QRasterPaintEngine::drawColorSpans(spans, count, color);
-    } else {
-        color = INV_PREMUL(color);
-
-        QVarLengthArray<DFBRegion> lines(count);
-        int j = 0;
-        for (int i = 0; i < count; ++i) {
-            if (spans[i].coverage == 255) {
-                lines[j].x1 = spans[i].x;
-                lines[j].y1 = spans[i].y;
-                lines[j].x2 = spans[i].x + spans[i].len - 1;
-                lines[j].y2 = spans[i].y;
-                ++j;
-            } else {
-                DFBSpan span = { spans[i].x, spans[i].len };
-                uint c = BYTE_MUL(color, spans[i].coverage);
-                // ### how does this play with setDFBColor
-                d->surface->SetColor(d->surface,
-                                     qRed(c), qGreen(c), qBlue(c), qAlpha(c));
-                d->surface->FillSpans(d->surface, spans[i].y, &span, 1);
-            }
-        }
-        if (j > 0) {
+    color = INV_PREMUL(color);
+
+    QVarLengthArray<DFBRegion> lines(count);
+    int j = 0;
+    for (int i = 0; i < count; ++i) {
+        if (spans[i].coverage == 255) {
+            lines[j].x1 = spans[i].x;
+            lines[j].y1 = spans[i].y;
+            lines[j].x2 = spans[i].x + spans[i].len - 1;
+            lines[j].y2 = spans[i].y;
+            ++j;
+        } else {
+            DFBSpan span = { spans[i].x, spans[i].len };
+            uint c = BYTE_MUL(color, spans[i].coverage);
+            // ### how does this play with setDFBColor
             d->surface->SetColor(d->surface,
-                                 qRed(color), qGreen(color), qBlue(color),
-                                 qAlpha(color));
-            d->surface->DrawLines(d->surface, lines.data(), j);
+                                 qRed(c), qGreen(c), qBlue(c), qAlpha(c));
+            d->surface->FillSpans(d->surface, spans[i].y, &span, 1);
         }
     }
+    if (j > 0) {
+        d->surface->SetColor(d->surface,
+                             qRed(color), qGreen(color), qBlue(color),
+                             qAlpha(color));
+        d->surface->DrawLines(d->surface, lines.data(), j);
+    }
 }
 
 void QDirectFBPaintEngine::drawBufferSpan(const uint *buffer, int bufsize,
@@ -803,7 +789,7 @@ void QDirectFBPaintEngine::initImageCache(int size)
 
 
 QDirectFBPaintEnginePrivate::QDirectFBPaintEnginePrivate(QDirectFBPaintEngine *p)
-    : surface(0), antialiased(false), forceRasterPrimitives(false), simplePen(false),
+    : surface(0), antialiased(false), simplePen(false),
       matrixRotShear(false), scale(NoScale), lastLockedHeight(-1),
       fbWidth(-1), fbHeight(-1), opacity(255), drawFlagsFromCompositionMode(0),
       blitFlagsFromCompositionMode(0), porterDuffRule(DSPD_SRC_OVER), dirtyClip(true),
@@ -896,7 +882,6 @@ void QDirectFBPaintEnginePrivate::begin(QPaintDevice *device)
                device->devType());
     }
     lockedMemory = 0;
-    forceRasterPrimitives = dfbDevice->forceRasterPrimitives();
 
     surface->GetSize(surface, &fbWidth, &fbHeight);
 
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
index fe59eec..8ed72b1 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpixmap.cpp
@@ -76,7 +76,6 @@ void QDirectFBPixmapData::resize(int width, int height)
                                                                format,
                                                                QDirectFBScreen::TrackSurface);
     alpha = false;
-    forceRaster = (format == QImage::Format_RGB32);
     if (!dfbSurface) {
         invalidate();
         qWarning("QDirectFBPixmapData::resize(): Unable to allocate surface");
@@ -187,7 +186,6 @@ void QDirectFBPixmapData::fromImage(const QImage &i,
     }
     dfbSurface = screen->copyToDFBSurface(img, format,
                                           QDirectFBScreen::TrackSurface);
-    forceRaster = (format == QImage::Format_RGB32);
     if (!dfbSurface) {
         qWarning("QDirectFBPixmapData::fromImage()");
         invalidate();
@@ -216,7 +214,6 @@ void QDirectFBPixmapData::copy(const QPixmapData *data, const QRect &rect)
         invalidate();
         return;
     }
-    forceRaster = (format == QImage::Format_RGB32);
 
     if (hasAlpha) {
         dfbSurface->Clear(dfbSurface, 0, 0, 0, 0);
@@ -268,7 +265,6 @@ void QDirectFBPixmapData::fill(const QColor &color)
         screen->releaseDFBSurface(dfbSurface);
         format = screen->alphaPixmapFormat();
         dfbSurface = screen->createDFBSurface(size, screen->alphaPixmapFormat(), QDirectFBScreen::TrackSurface);
-        forceRaster = false;
         setSerialNumber(++global_ser_no);
         if (!dfbSurface) {
             qWarning("QDirectFBPixmapData::fill()");
@@ -277,24 +273,7 @@ void QDirectFBPixmapData::fill(const QColor &color)
         }
     }
 
-    if (forceRaster) {
-        // in DSPF_RGB32 all dfb drawing causes the Alpha byte to be
-        // set to 0. This causes issues for the raster engine.
-        uchar *mem = QDirectFBScreen::lockSurface(dfbSurface, DSLF_WRITE, &bpl);
-        if (mem) {
-            const int h = QPixmapData::height();
-            const int w = QPixmapData::width() * 4; // 4 bytes per 32 bit pixel
-            const int c = color.rgba();
-            for (int i = 0; i < h; ++i) {
-                memset(mem, c, w);
-                mem += bpl;
-            }
-            dfbSurface->Unlock(dfbSurface);
-        }
-    } else {
-        dfbSurface->Clear(dfbSurface, color.red(), color.green(), color.blue(),
-                          color.alpha());
-    }
+    dfbSurface->Clear(dfbSurface, color.red(), color.green(), color.blue(), color.alpha());
 }
 
 QPixmap QDirectFBPixmapData::transformed(const QTransform &transform,
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
index 7865453..94b5984 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
@@ -127,7 +127,6 @@ void QDirectFBWindowSurface::createWindow()
         dfbSurface->Release(dfbSurface);
 
     dfbWindow->GetSurface(dfbWindow, &dfbSurface);
-    forceRaster = (format == QImage::Format_RGB32);
 #endif
 }
 #endif // QT_NO_DIRECTFB_WM
@@ -164,7 +163,6 @@ void QDirectFBWindowSurface::setGeometry(const QRect &rect, const QRegion &mask)
                                          rect.width(), rect.height() };
                 result = primarySurface->GetSubSurface(primarySurface, &r, &dfbSurface);
             }
-            forceRaster = (dfbSurface && QDirectFBScreen::getImageFormat(dfbSurface) == QImage::Format_RGB32);
         } else {
             const bool isResize = rect.size() != geometry().size();
 #ifdef QT_NO_DIRECTFB_WM
@@ -179,7 +177,6 @@ void QDirectFBWindowSurface::setGeometry(const QRect &rect, const QRegion &mask)
                 }
 
                 dfbSurface = screen->createDFBSurface(rect.size(), screen->pixelFormat(), QDirectFBScreen::DontTrackSurface);
-                forceRaster = (dfbSurface && QDirectFBScreen::getImageFormat(dfbSurface) == QImage::Format_RGB32);
             } else {
                 Q_ASSERT(dfbSurface);
             }