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Diffstat (limited to 'src/gui/painting/qpaintengine_raster.cpp')
-rw-r--r--src/gui/painting/qpaintengine_raster.cpp254
1 files changed, 137 insertions, 117 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 654870f191..d4e988b14b 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -91,6 +91,8 @@
# include <private/qfontengine_qpf_p.h>
# endif
# include <private/qabstractfontengine_p.h>
+#elif defined(Q_OS_SYMBIAN) && defined(QT_NO_FREETYPE)
+# include <private/qfontengine_s60_p.h>
#endif
#if defined(Q_WS_WIN64)
@@ -342,32 +344,36 @@ void QRasterPaintEngine::init()
#else
(unsigned char *) malloc(d->rasterPoolSize);
#endif
+ Q_CHECK_PTR(d->rasterPoolBase);
// The antialiasing raster.
- d->grayRaster = new QT_FT_Raster;
- qt_ft_grays_raster.raster_new(0, d->grayRaster);
- qt_ft_grays_raster.raster_reset(*d->grayRaster, d->rasterPoolBase, d->rasterPoolSize);
+ d->grayRaster.reset(new QT_FT_Raster);
+ Q_CHECK_PTR(d->grayRaster.data());
+ if (qt_ft_grays_raster.raster_new(0, d->grayRaster.data()))
+ QT_THROW(std::bad_alloc()); // an error creating the raster is caused by a bad malloc
- d->rasterizer = new QRasterizer;
- d->rasterBuffer = new QRasterBuffer();
- d->outlineMapper = new QOutlineMapper;
+
+ qt_ft_grays_raster.raster_reset(*d->grayRaster.data(), d->rasterPoolBase, d->rasterPoolSize);
+
+ d->rasterizer.reset(new QRasterizer);
+ d->rasterBuffer.reset(new QRasterBuffer());
+ d->outlineMapper.reset(new QOutlineMapper);
d->outlinemapper_xform_dirty = true;
d->basicStroker.setMoveToHook(qt_ft_outline_move_to);
d->basicStroker.setLineToHook(qt_ft_outline_line_to);
d->basicStroker.setCubicToHook(qt_ft_outline_cubic_to);
- d->dashStroker = 0;
- d->baseClip = new QClipData(d->device->height());
+ d->baseClip.reset(new QClipData(d->device->height()));
d->baseClip->setClipRect(QRect(0, 0, d->device->width(), d->device->height()));
- d->image_filler.init(d->rasterBuffer, this);
+ d->image_filler.init(d->rasterBuffer.data(), this);
d->image_filler.type = QSpanData::Texture;
- d->image_filler_xform.init(d->rasterBuffer, this);
+ d->image_filler_xform.init(d->rasterBuffer.data(), this);
d->image_filler_xform.type = QSpanData::Texture;
- d->solid_color_filler.init(d->rasterBuffer, this);
+ d->solid_color_filler.init(d->rasterBuffer.data(), this);
d->solid_color_filler.type = QSpanData::Solid;
d->deviceDepth = d->device->depth();
@@ -436,15 +442,7 @@ QRasterPaintEngine::~QRasterPaintEngine()
free(d->rasterPoolBase);
#endif
- qt_ft_grays_raster.raster_done(*d->grayRaster);
- delete d->grayRaster;
-
- delete d->rasterBuffer;
- delete d->outlineMapper;
- delete d->rasterizer;
- delete d->dashStroker;
-
- delete d->baseClip;
+ qt_ft_grays_raster.raster_done(*d->grayRaster.data());
}
/*!
@@ -480,12 +478,12 @@ bool QRasterPaintEngine::begin(QPaintDevice *device)
d->rasterizer->setClipRect(d->deviceRect);
- s->penData.init(d->rasterBuffer, this);
+ s->penData.init(d->rasterBuffer.data(), this);
s->penData.setup(s->pen.brush(), s->intOpacity, s->composition_mode);
s->stroker = &d->basicStroker;
d->basicStroker.setClipRect(d->deviceRect);
- s->brushData.init(d->rasterBuffer, this);
+ s->brushData.init(d->rasterBuffer.data(), this);
s->brushData.setup(s->brush, s->intOpacity, s->composition_mode);
d->rasterBuffer->compositionMode = QPainter::CompositionMode_SourceOver;
@@ -549,8 +547,7 @@ bool QRasterPaintEngine::end()
void QRasterPaintEngine::releaseBuffer()
{
Q_D(QRasterPaintEngine);
- delete d->rasterBuffer;
- d->rasterBuffer = new QRasterBuffer;
+ d->rasterBuffer.reset(new QRasterBuffer);
}
/*!
@@ -794,8 +791,8 @@ void QRasterPaintEngine::updatePen(const QPen &pen)
if(pen_style == Qt::SolidLine) {
s->stroker = &d->basicStroker;
} else if (pen_style != Qt::NoPen) {
- if (!d->dashStroker)
- d->dashStroker = new QDashStroker(&d->basicStroker);
+ if (!d->dashStroker.data())
+ d->dashStroker.reset(new QDashStroker(&d->basicStroker));
if (pen.isCosmetic()) {
d->dashStroker->setClipRect(d->deviceRect);
} else {
@@ -805,7 +802,7 @@ void QRasterPaintEngine::updatePen(const QPen &pen)
}
d->dashStroker->setDashPattern(pen.dashPattern());
d->dashStroker->setDashOffset(pen.dashOffset());
- s->stroker = d->dashStroker;
+ s->stroker = d->dashStroker.data();
} else {
s->stroker = 0;
}
@@ -1241,7 +1238,7 @@ void QRasterPaintEngine::clip(const QVectorPath &path, Qt::ClipOperation op)
qrasterpaintengine_state_setNoClip(s);
} else {
- QClipData *base = d->baseClip;
+ QClipData *base = d->baseClip.data();
// Intersect with current clip when available...
if (op == Qt::IntersectClip && s->clip)
@@ -1366,7 +1363,7 @@ void QRasterPaintEngine::clip(const QRegion &region, Qt::ClipOperation op)
QRasterPaintEngineState *s = state();
const QClipData *clip = d->clip();
- const QClipData *baseClip = d->baseClip;
+ const QClipData *baseClip = d->baseClip.data();
if (op == Qt::NoClip) {
qrasterpaintengine_state_setNoClip(s);
@@ -1434,7 +1431,7 @@ void QRasterPaintEngine::fillPath(const QPainterPath &path, QSpanData *fillData)
}
ensureOutlineMapper();
- d->rasterize(d->outlineMapper->convertPath(path), blend, fillData, d->rasterBuffer);
+ d->rasterize(d->outlineMapper->convertPath(path), blend, fillData, d->rasterBuffer.data());
}
static void fillRect_normalized(const QRect &r, QSpanData *data,
@@ -1864,7 +1861,7 @@ void QRasterPaintEngine::fill(const QVectorPath &path, const QBrush &brush)
// }
ensureOutlineMapper();
- d->rasterize(d->outlineMapper->convertPath(path), blend, &s->brushData, d->rasterBuffer);
+ d->rasterize(d->outlineMapper->convertPath(path), blend, &s->brushData, d->rasterBuffer.data());
}
void QRasterPaintEngine::fillRect(const QRectF &r, QSpanData *data)
@@ -2031,7 +2028,7 @@ void QRasterPaintEngine::fillPolygon(const QPointF *points, int pointCount, Poly
// scanconvert.
ProcessSpans brushBlend = d->getBrushFunc(d->outlineMapper->controlPointRect,
&s->brushData);
- d->rasterize(outline, brushBlend, &s->brushData, d->rasterBuffer);
+ d->rasterize(outline, brushBlend, &s->brushData, d->rasterBuffer.data());
}
/*!
@@ -2127,7 +2124,7 @@ void QRasterPaintEngine::drawPolygon(const QPoint *points, int pointCount, Polyg
// scanconvert.
ProcessSpans brushBlend = d->getBrushFunc(d->outlineMapper->controlPointRect,
&s->brushData);
- d->rasterize(d->outlineMapper->outline(), brushBlend, &s->brushData, d->rasterBuffer);
+ d->rasterize(d->outlineMapper->outline(), brushBlend, &s->brushData, d->rasterBuffer.data());
d->outlineMapper->setCoordinateRounding(false);
}
}
@@ -2755,7 +2752,7 @@ void QRasterPaintEngine::alphaPenBlt(const void* src, int bpl, int depth, int rx
if (!s->penData.blend)
return;
- QRasterBuffer *rb = d->rasterBuffer;
+ QRasterBuffer *rb = d->rasterBuffer.data();
const QRect rect(rx, ry, w, h);
const QClipData *clip = d->clip();
@@ -3162,7 +3159,7 @@ void QRasterPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte
ensurePen();
ensureState();
-#if defined (Q_WS_WIN) || defined(Q_WS_MAC)
+#if defined (Q_WS_WIN) || defined(Q_WS_MAC) || (defined(Q_OS_SYMBIAN) && defined(QT_NO_FREETYPE))
bool drawCached = true;
@@ -3195,7 +3192,7 @@ void QRasterPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte
return;
}
-#else // Q_WS_WIN || Q_WS_MAC
+#else // Q_WS_WIN || Q_WS_MAC || Q_OS_SYMBIAN && QT_NO_FREETYPE
QFontEngine *fontEngine = ti.fontEngine;
@@ -3215,7 +3212,7 @@ void QRasterPaintEngine::drawTextItem(const QPointF &p, const QTextItem &textIte
}
#endif // Q_WS_QWS
-#if (defined(Q_WS_X11) || defined(Q_WS_QWS)) && !defined(QT_NO_FREETYPE)
+#if (defined(Q_WS_X11) || defined(Q_WS_QWS) || defined(Q_OS_SYMBIAN)) && !defined(QT_NO_FREETYPE)
#if defined(Q_WS_QWS) && !defined(QT_NO_QWS_QPF2)
if (fontEngine->type() == QFontEngine::QPF2) {
@@ -3880,7 +3877,7 @@ static void qt_merge_clip(const QClipData *c1, const QClipData *c2, QClipData *r
// find required length
int max = qMax(c1_spans[c1_count - 1].x + c1_spans[c1_count - 1].len,
- c2_spans[c2_count - 1].x + c2_spans[c2_count - 1].len);
+ c2_spans[c2_count - 1].x + c2_spans[c2_count - 1].len);
buffer.resize(max);
memset(buffer.data(), 0, buffer.size() * sizeof(short));
@@ -4017,7 +4014,7 @@ void QRasterPaintEnginePrivate::rasterize(QT_FT_Outline *outline,
rasterParams.flags |= (QT_FT_RASTER_FLAG_AA | QT_FT_RASTER_FLAG_DIRECT);
rasterParams.gray_spans = callback;
- error = qt_ft_grays_raster.raster_render(*grayRaster, &rasterParams);
+ error = qt_ft_grays_raster.raster_render(*grayRaster.data(), &rasterParams);
// Out of memory, reallocate some more and try again...
if (error == -6) { // -6 is Result_err_OutOfMemory
@@ -4042,10 +4039,11 @@ void QRasterPaintEnginePrivate::rasterize(QT_FT_Outline *outline,
#else
(unsigned char *) malloc(rasterPoolSize);
#endif
+ Q_CHECK_PTR(rasterPoolBase); // note: we just freed the old rasterPoolBase. I hope it's not fatal.
- qt_ft_grays_raster.raster_done(*grayRaster);
- qt_ft_grays_raster.raster_new(0, grayRaster);
- qt_ft_grays_raster.raster_reset(*grayRaster, rasterPoolBase, rasterPoolSize);
+ qt_ft_grays_raster.raster_done(*grayRaster.data());
+ qt_ft_grays_raster.raster_new(0, grayRaster.data());
+ qt_ft_grays_raster.raster_reset(*grayRaster.data(), rasterPoolBase, rasterPoolSize);
} else {
done = true;
}
@@ -4079,6 +4077,8 @@ QImage QRasterBuffer::colorizeBitmap(const QImage &image, const QColor &color)
for (int y=0; y<height; ++y) {
uchar *source = sourceImage.scanLine(y);
QRgb *target = reinterpret_cast<QRgb *>(dest.scanLine(y));
+ if (!source || !target)
+ QT_THROW(std::bad_alloc()); // we must have run out of memory
for (int x=0; x < width; ++x)
target[x] = (source[x>>3] >> (x&7)) & 1 ? fg : bg;
}
@@ -4164,8 +4164,14 @@ int QCustomRasterPaintDevice::bytesPerLine() const
{
return (width() * depth() + 7) / 8;
}
-#endif // Q_WS_QWS
+#elif defined(Q_OS_SYMBIAN)
+
+void QRasterBuffer::prepareBuffer(int /* width */, int /* height */)
+{
+}
+
+#endif // Q_OS_SYMBIAN
/*!
\class QCustomRasterPaintDevice
@@ -4273,95 +4279,109 @@ void QClipData::initialize()
if (!m_clipLines)
m_clipLines = (ClipLine *)calloc(sizeof(ClipLine), clipSpanHeight);
- m_spans = (QSpan *)malloc(clipSpanHeight*sizeof(QSpan));
- allocated = clipSpanHeight;
+ Q_CHECK_PTR(m_clipLines);
+ QT_TRY {
+ m_spans = (QSpan *)malloc(clipSpanHeight*sizeof(QSpan));
+ allocated = clipSpanHeight;
+ Q_CHECK_PTR(m_spans);
+
+ QT_TRY {
+ if (hasRectClip) {
+ int y = 0;
+ while (y < ymin) {
+ m_clipLines[y].spans = 0;
+ m_clipLines[y].count = 0;
+ ++y;
+ }
- if (hasRectClip) {
- int y = 0;
- while (y < ymin) {
- m_clipLines[y].spans = 0;
- m_clipLines[y].count = 0;
- ++y;
- }
+ const int len = clipRect.width();
+ count = 0;
+ while (y < ymax) {
+ QSpan *span = m_spans + count;
+ span->x = xmin;
+ span->len = len;
+ span->y = y;
+ span->coverage = 255;
+ ++count;
- const int len = clipRect.width();
- count = 0;
- while (y < ymax) {
- QSpan *span = m_spans + count;
- span->x = xmin;
- span->len = len;
- span->y = y;
- span->coverage = 255;
- ++count;
-
- m_clipLines[y].spans = span;
- m_clipLines[y].count = 1;
- ++y;
- }
+ m_clipLines[y].spans = span;
+ m_clipLines[y].count = 1;
+ ++y;
+ }
- while (y < clipSpanHeight) {
- m_clipLines[y].spans = 0;
- m_clipLines[y].count = 0;
- ++y;
- }
- } else if (hasRegionClip) {
+ while (y < clipSpanHeight) {
+ m_clipLines[y].spans = 0;
+ m_clipLines[y].count = 0;
+ ++y;
+ }
+ } else if (hasRegionClip) {
- const QVector<QRect> rects = clipRegion.rects();
- const int numRects = rects.size();
+ const QVector<QRect> rects = clipRegion.rects();
+ const int numRects = rects.size();
- { // resize
- const int maxSpans = (ymax - ymin) * numRects;
- if (maxSpans > allocated) {
- m_spans = (QSpan *)realloc(m_spans, maxSpans * sizeof(QSpan));
- allocated = maxSpans;
- }
- }
+ { // resize
+ const int maxSpans = (ymax - ymin) * numRects;
+ if (maxSpans > allocated) {
+ m_spans = q_check_ptr((QSpan *)realloc(m_spans, maxSpans * sizeof(QSpan)));
+ allocated = maxSpans;
+ }
+ }
- int y = 0;
- int firstInBand = 0;
- count = 0;
- while (firstInBand < numRects) {
- const int currMinY = rects.at(firstInBand).y();
- const int currMaxY = currMinY + rects.at(firstInBand).height();
+ int y = 0;
+ int firstInBand = 0;
+ count = 0;
+ while (firstInBand < numRects) {
+ const int currMinY = rects.at(firstInBand).y();
+ const int currMaxY = currMinY + rects.at(firstInBand).height();
+
+ while (y < currMinY) {
+ m_clipLines[y].spans = 0;
+ m_clipLines[y].count = 0;
+ ++y;
+ }
- while (y < currMinY) {
- m_clipLines[y].spans = 0;
- m_clipLines[y].count = 0;
- ++y;
- }
+ int lastInBand = firstInBand;
+ while (lastInBand + 1 < numRects && rects.at(lastInBand+1).top() == y)
+ ++lastInBand;
- int lastInBand = firstInBand;
- while (lastInBand + 1 < numRects && rects.at(lastInBand+1).top() == y)
- ++lastInBand;
+ while (y < currMaxY) {
- while (y < currMaxY) {
+ m_clipLines[y].spans = m_spans + count;
+ m_clipLines[y].count = lastInBand - firstInBand + 1;
- m_clipLines[y].spans = m_spans + count;
- m_clipLines[y].count = lastInBand - firstInBand + 1;
+ for (int r = firstInBand; r <= lastInBand; ++r) {
+ const QRect &currRect = rects.at(r);
+ QSpan *span = m_spans + count;
+ span->x = currRect.x();
+ span->len = currRect.width();
+ span->y = y;
+ span->coverage = 255;
+ ++count;
+ }
+ ++y;
+ }
- for (int r = firstInBand; r <= lastInBand; ++r) {
- const QRect &currRect = rects.at(r);
- QSpan *span = m_spans + count;
- span->x = currRect.x();
- span->len = currRect.width();
- span->y = y;
- span->coverage = 255;
- ++count;
+ firstInBand = lastInBand + 1;
}
- ++y;
- }
- firstInBand = lastInBand + 1;
- }
+ Q_ASSERT(count <= allocated);
- Q_ASSERT(count <= allocated);
+ while (y < clipSpanHeight) {
+ m_clipLines[y].spans = 0;
+ m_clipLines[y].count = 0;
+ ++y;
+ }
- while (y < clipSpanHeight) {
- m_clipLines[y].spans = 0;
- m_clipLines[y].count = 0;
- ++y;
+ }
+ } QT_CATCH(...) {
+ free(m_spans); // have to free m_spans again or someone might think that we were successfully initialized.
+ m_spans = 0;
+ QT_RETHROW;
}
-
+ } QT_CATCH(...) {
+ free(m_clipLines); // same for clipLines
+ m_clipLines = 0;
+ QT_RETHROW;
}
}
@@ -4636,8 +4656,8 @@ static void qt_span_clip(int count, const QSpan *spans, void *userData)
&newspans, newClip->allocated - newClip->count);
newClip->count = newspans - newClip->m_spans;
if (spans < end) {
+ newClip->m_spans = q_check_ptr((QSpan *)realloc(newClip->m_spans, newClip->allocated*2*sizeof(QSpan)));
newClip->allocated *= 2;
- newClip->m_spans = (QSpan *)realloc(newClip->m_spans, newClip->allocated*sizeof(QSpan));
}
}
}
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