diff options
Diffstat (limited to 'src/gui/image/qimage.cpp')
| -rw-r--r-- | src/gui/image/qimage.cpp | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/src/gui/image/qimage.cpp b/src/gui/image/qimage.cpp index 70d4e2c..34ad99c 100644 --- a/src/gui/image/qimage.cpp +++ b/src/gui/image/qimage.cpp @@ -185,6 +185,13 @@ static int depthForFormat(QImage::Format format) return depth; } +/*! \fn QImageData * QImageData::create(const QSize &size, QImage::Format format, int numColors) + + \internal + + Creates a new image data. + Returns 0 if invalid parameters are give or anything else failed. +*/ QImageData * QImageData::create(const QSize &size, QImage::Format format, int numColors) { if (!size.isValid() || numColors < 0 || format == QImage::Format_Invalid) @@ -223,7 +230,7 @@ QImageData * QImageData::create(const QSize &size, QImage::Format format, int nu || INT_MAX/sizeof(uchar *) < uint(height)) return 0; - QImageData *d = new QImageData; + QScopedPointer<QImageData> d(new QImageData); d->colortable.resize(numColors); if (depth == 1) { d->colortable[0] = QColor(Qt::black).rgba(); @@ -246,12 +253,11 @@ QImageData * QImageData::create(const QSize &size, QImage::Format format, int nu d->data = (uchar *)malloc(d->nbytes); if (!d->data) { - delete d; return 0; } d->ref.ref(); - return d; + return d.take(); } @@ -1621,6 +1627,7 @@ int QImage::numColors() const /*! Returns a pointer to the scanline pointer table. This is the beginning of the data block for the image. + Returns 0 in case of an error. Use the bits() or scanLine() function instead. */ @@ -1636,6 +1643,8 @@ uchar **QImage::jumpTable() if (!d->jumptable) { d->jumptable = (uchar **)malloc(d->height*sizeof(uchar *)); + if (!d->jumptable) + return 0; uchar *data = d->data; int height = d->height; uchar **p = d->jumptable; @@ -1656,6 +1665,8 @@ const uchar * const *QImage::jumpTable() const return 0; if (!d->jumptable) { d->jumptable = (uchar **)malloc(d->height*sizeof(uchar *)); + if (!d->jumptable) + return 0; uchar *data = d->data; int height = d->height; uchar **p = d->jumptable; |