Commit Graph

14 Commits

Author SHA1 Message Date
Robert Loehning
e80be8a43d Fix buffer overflow
Fixes: oss-fuzz-23988
Pick-to: 5.15 5.12
Change-Id: I4efdbfc3c0a96917c0c8224642896088ade99f35
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
2020-07-10 22:55:28 +02:00
Eirik Aavitsland
3797704c4f Generalize image file name @2x suffix handling to higher scale factors
@3x is in use on iOS already, so extend the handling in QImageReader
to all single-digit factors, like QIcon does.

Fixes: QTBUG-76273
Change-Id: Ic9442731c0549dbe8f797e1ddb1a09d8447e8441
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2019-06-14 13:08:56 +02:00
Allan Sandfeld Jensen
5d0ee89132 Fix reading 16bpc grayscale PNGs
They were incorrectly attempted to be read as Indexed8, instead use
the RGBA64 formats to read them with full accuracy.

Task-number: QTBUG-45858
Change-Id: I14fc3cb0d59fa2fc0e68fd870f3b32352c34161f
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
2018-09-03 08:24:10 +00:00
Allan Sandfeld Jensen
9c9f98f2ff Implement support for 16bpc image formats
Adds support for 16bit per color image formats in QImage. This makes it
possible to read and write 16bpc PNGs, and take full advantage of the
16bpc paint engine.

[ChangeLog][QtGui][QImage] QImage now supports 64bit image formats with
16 bits per color channel, compatible with 16bpc PNG or RGBA16 OpenGL
formats.

Task-number: QTBUG-45858
Change-Id: Icd28bd5868a6efcf65cb5bd56031d42941e04099
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2018-08-11 14:12:48 +00:00
Eirik Aavitsland
e4f71b0cb5 Crash fix: reject certain malformed bmp images
A malformed bmp file header could specify a negative color table
size. The bmp handler would then return a QImage that claimed to be
valid, but actually was invalid, having an empty color table. This
would cause crash later, e.g. when attempting to paint it.

Change-Id: I7df7c40867557a82dbcee44c7de061226ff232c0
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Reviewed-by: Richard J. Moore <rich@kde.org>
2016-02-05 04:14:35 +00:00
Eirik Aavitsland
711f799298 Make the ppm image handler corrctly handle long comment lines
The ppm decoder used a fixed size buffer to discard comment lines,
which would fail for comments longer than 100 characters.

Task-number: QTBUG-49414
Change-Id: I92e910e025cf7584a6ff1c0e5b0e8a4ab281d479
Reviewed-by: Liang Qi <liang.qi@theqtcompany.com>
2015-11-19 08:06:07 +00:00
Axel Waggershauser
b11317a643 Whitespace cleanup: remove trailing whitespace
Remove all trailing whitespace from the following list of files:
*.cpp *.h *.conf *.qdoc *.pro *.pri *.mm *.rc *.pl *.qps *.xpm *.txt *README
excluding 3rdparty, test-data and auto generated code.

Note A): the only non 3rdparty c++-files that still
have trailing whitespace after this change are:
* src/corelib/codecs/cp949codetbl_p.h
* src/corelib/codecs/qjpunicode.cpp
* src/corelib/codecs/qbig5codec.cpp
* src/corelib/xml/qxmlstream_p.h
* src/tools/qdoc/qmlparser/qqmljsgrammar.cpp
* src/tools/uic/ui4.cpp
* tests/auto/other/qtokenautomaton/tokenizers/*
* tests/benchmarks/corelib/tools/qstring/data.cpp
* util/lexgen/tokenizer.cpp

Note B): in about 30 files some overlapping 'leading tab' and
'TAB character in non-leading whitespace' issues have been fixed
to make the sanity bot happy. Plus some general ws-fixes here
and there as asked for during review.

Change-Id: Ia713113c34d82442d6ce4d93d8b1cf545075d11d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
2013-03-16 20:22:50 +01:00
Samuel Rødal
af84313c62 Fixed crash in image reader when reading certain BMP files.
If the high bit in a mask is set, for instance if the mask is
0xff000000, and we shift it to the right by 24 positions, since the mask
was not declared as unsigned we ended up with a mask value of
0xffffffff. We then add 1 to this value and divide by the result,
causing a division by zero crash.

The masks need to be declared unsigned to prevent sign bit extension
when shifting right.

Task-number: QTBUG-29194
Change-Id: I79260344cebfbdd3ea86416a9c734dca76517999
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
2013-02-06 09:59:56 +01:00
aavit
d91c1422a9 Fix GIF image decoding: do not zero transparent pixels
For the special transparent color index, the decoder would skip
writing anything out (thus leaving the pixels at 0 rgba value).
Although correct for later frames, for the initial frame this would
loose the color information for such pixels (which one otherwise
could have made visible e.g. by converting then image to an
alpha-less image format).

Change-Id: I316cefce8f21797feedebfbf98296ad84eaa4b99
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
(cherry picked from qt/c309d424f45dc0e7b62fbbbabf20dbfe355f48a7)
Reviewed-by: aavit <eirik.aavitsland@digia.com>
2012-11-09 16:07:51 +01:00
Konstantin Ritt
3cfcceae43 QJpegHandler: add an embedded text support
texts for the textKeys are stored each in a separate COM(ment) section
so that the maximum text's size is almost 65KB

Task-number: QTBUG-10568
Task-number: QTBUG-111

Change-Id: I7d693741e10e5d78d497cb0af448160077350bb2
Reviewed-by: aavit <qt_aavit@ovi.com>
2012-05-16 04:24:50 +02:00
aavit
4fce5d1795 Moving tiff image format support and libtiff out of qtbase
The tiff plugin and bundled libtiff is moving to the qtimageformats
project on Gerrit.

Task-number: QTBUG-23887
Change-Id: I4c848232fdccddd7e7f54215f9eaa78dc4c3a53d
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
2012-01-31 14:31:04 +01:00
aavit
48f9ba388b Remove support for the MNG file format and the bundled libmng
The MNG file format is generally abandoned, and libmng has been
unmaintained for several years.

The MNG plugin and bundled libmng has been moved to the
qtimageformats project on Gerrit.

Task-number: QTBUG-21869
Change-Id: I946432347014ffde2b72307a5f8b166ca5553602
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
2012-01-25 02:22:18 +01:00
Jason McDonald
4c66ab91a9 Remove execute permission from files that don't need it.
Change-Id: Ib92875289cdd9831f35301c566fb567acc725bb6
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
2012-01-10 01:24:22 +01:00
Jo Asplin
a90f50942e Moved gui autotests into new directory structure
Task-number: QTBUG-21133

Change-Id: I83b8f652935cf92151265ca2530a3cf81c31fdef
Reviewed-on: http://codereview.qt.nokia.com/3996
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jo Asplin <jo.asplin@nokia.com>
2011-09-01 10:59:49 +02:00