diff options
Diffstat (limited to 'src/gui/painting/qdrawhelper_p.h')
| -rw-r--r-- | src/gui/painting/qdrawhelper_p.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h index 6377fe130c..db5ec709a4 100644 --- a/src/gui/painting/qdrawhelper_p.h +++ b/src/gui/painting/qdrawhelper_p.h @@ -268,8 +268,10 @@ struct QGradientData #ifdef Q_WS_QWS #define GRADIENT_STOPTABLE_SIZE 256 +#define GRADIENT_STOPTABLE_SIZE_SHIFT 8 #else #define GRADIENT_STOPTABLE_SIZE 1024 +#define GRADIENT_STOPTABLE_SIZE_SHIFT 10 #endif uint* colorTable; //[GRADIENT_STOPTABLE_SIZE]; @@ -389,6 +391,13 @@ template <class RadialFetchFunc> const uint * QT_FASTCALL qt_fetch_radial_gradient_template(uint *buffer, const Operator *op, const QSpanData *data, int y, int x, int length) { + // avoid division by zero + if (qFuzzyIsNull(op->radial.a)) { + extern void (*qt_memfill32)(quint32 *dest, quint32 value, int count); + qt_memfill32(buffer, data->gradient.colorTable[0], length); + return buffer; + } + const uint *b = buffer; qreal rx = data->m21 * (y + qreal(0.5)) + data->dx + data->m11 * (x + qreal(0.5)); |