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| author | Leonardo Sobral Cunha <leo.cunha@nokia.com> | 2009-06-09 10:02:59 (GMT) |
|---|---|---|
| committer | Leonardo Sobral Cunha <leo.cunha@nokia.com> | 2009-06-09 10:07:14 (GMT) |
| commit | d826a08add652314bb22bee44e0d43bbd672f272 (patch) | |
| tree | e47b8ab38ed4773c2b63ea7a5d7ec0f49ed9d061 /src/plugins/imageformats/jpeg | |
| parent | 9b88c6f485016b53d394a88106a048495cf79294 (diff) | |
| download | Qt-d826a08add652314bb22bee44e0d43bbd672f272.zip Qt-d826a08add652314bb22bee44e0d43bbd672f272.tar.gz Qt-d826a08add652314bb22bee44e0d43bbd672f272.tar.bz2 | |
Fix floating point exception in QImageReader::setScaledSize(QSize(0, 0))
Avoid a division by 0 when doing QImageReader::setScaledSize(QSize(0, 0))
for jpeg formats.
Reviewed-by: thierry
Task-number: 255627
Diffstat (limited to 'src/plugins/imageformats/jpeg')
| -rw-r--r-- | src/plugins/imageformats/jpeg/qjpeghandler.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/imageformats/jpeg/qjpeghandler.cpp b/src/plugins/imageformats/jpeg/qjpeghandler.cpp index 6d0bc1f..088ef97 100644 --- a/src/plugins/imageformats/jpeg/qjpeghandler.cpp +++ b/src/plugins/imageformats/jpeg/qjpeghandler.cpp @@ -781,7 +781,8 @@ static bool read_jpeg_image(QIODevice *device, QImage *outImage, #ifndef QT_NO_IMAGE_SMOOTHSCALE // If high quality not required, shrink image during decompression - if (scaledSize.isValid() && quality < HIGH_QUALITY_THRESHOLD && !params.contains(QLatin1String("GetHeaderInformation")) ) { + if (scaledSize.isValid() && !scaledSize.isEmpty() && quality < HIGH_QUALITY_THRESHOLD + && !params.contains(QLatin1String("GetHeaderInformation")) ) { cinfo.scale_denom = qMin(cinfo.image_width / scaledSize.width(), cinfo.image_width / scaledSize.height()); if (cinfo.scale_denom < 2) { |