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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: I1003d546a70d540b5c135b6b75dee9b4962a7210
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
(cherry picked from qtbase, af84313c622af880e95d461ea8b7dbca58d2dffa)
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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>
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master-integration
* 'master' of scm.dev.nokia.troll.no:qt/qt-water-staging:
Set execution bits for more scripts.
Set execution bits for .test files.
Fix more permissions (no execute bit).
Fix permission (no execute bit).
QGraphicsLayoutItem - bound constraint the minimum and maximum size
Notify X11 of its resizable state through MWM Hints.
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Rev-By: Samuel Rodal
Fix-for: QTBUG-21955
Part of fix for https://bugreports.qt.nokia.com/browse/QTBUG-21955
Having tga plugin inside a Qt add-on causes packaging problems.
There have been many queries over the years for tga support even tho it
is a niche image format. It is particularly useful for OpenGL work as a
texture format since it is a blittable bitmap, but it is very
innefficient compared to png or jpg.
For this reason only read support is added, and this is documented.
Also add some unit tests.
The unit tests are in the qimagereader suite, and this is the right
place for them as the other formats are tested there.
Noticed that there was an annoying bug with tiff files and chased it
down, in the hope of getting a clean test case PASS. Looks as tho
there is a bit of work for someone to fix the other FAILs, but the ones
for tga are all passing.
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The headers are just skipped, information stored in them is ignored.
Merge-request: 824
Reviewed-by: Kim Motoyoshi Kalland <kim.kalland@nokia.com>
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Text chunks placed after the real image data (IDAT chunks) were ignored.
Reviewed-by: Kim
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Fixed by merge request 1080.
Task-number: QTBUG-17254
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Task-number: QTBUG-13653
Reviewed-by: aavit
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Task-number: QT-3613
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Improved/fixed canRead(). Added svgz support. Implemented ClipRect,
ScaledClipRect and BackgroundColor support. Avoid data copy when reading
from memory. Improved support reading from sequential devices. Added svg
and svgz files to the qimagereader autotests.
Task-number: QTBUG-8227 and QTBUG-9053
Reviewed-by: Kim
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Task-number: QTBUG-7037
Reviewed-by: Kim
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The gif and mng reader will return -1 as QImageReader::loopCount()
for infinite images. Document that this -1 is clashing with the
error handling of this method.
The documentation was mixing the default and error cases. In some
cases "Otherwise -1" and "Otherwise 0" was used. Change this to
mention the default coming from QImageIOHandler in the "Otherwise"
clause and document the error case with -1.
Add a test case to check that loopCount() returns -1 for infinite
animations.
Reviewed-by: Andreas
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Verify that QImageReader::size is not consuming a frame and
can be called before each frame and that the last frame will
return a QSize of (-1x-1).
Task-number: QTBUG-6696
Reviewed-by: Andreas
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The PHOTOMETRIC_MINISBLACK and PHOTOMETRIC_MINISWHITE settings also
apply to 8-bit grayscale, so we need to check the bit depth of the image
as well. For convenience we also try to write the images using
PHOTOMETRIC_MINISBLACK and PHOTOMETRIC_MINISWHITE as opposed to
PHOTOMETRIC_PALETTE when we detect that the color table is grayscale.
Task-number: QTBUG-5459
Reviewed-by: Benjamin Poulain
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In the case of optimized animated gifs, we don't want to discard
the contents of the previous frame, this is handled if needed in the
disposal process.
Task-number: 247365
Reviewed-by: Samuel
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The orientation tag was ignored for tiff images. The tag is now used
to rotate the image before providing it to the user.
The orientation of indexed an mono images is done completely manually.
The orientation of other type is done in conjunction to the mirroring
already performed by libtiff.
Task-number: 258526
Reviewed-by: Samuel Rødal
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Refactor the test of QImageReader to work with shadow build.
Add two tests for the TIFF format
Fix an error of the test of QImageWriter that prevented the cleaning
of the created files after the test.
Reviewed-by: Olivier
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