The color space meta data was retained through most image conversion
functions, but missed in the optimized code path for 90/180/270 degree
rotations.
Fixes: QTBUG-126575
Pick-to: 6.7 6.5
Change-Id: Icbd5aa71e88b4d2d79b00b3cadfe850e6714637b
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
(cherry picked from commit bea8beef85d1b5a163021ba4a671bbaddcc1738d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
Combine all into a single flexible apply method.
Also fixes a few issues with RGB colorspace on gray input. Blocking CMYK colorspace on Grayscale and ElementListProcessing RGB on grayscale out.
Fixes: QTBUG-125303
Change-Id: I3987010062fbb5aa708aeb1cc239f3ce9413e34f
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
The codepaths for image scaling are a bit convoluted, so some "surgery"
is needed. QImage::scaled() delegates to transformed(), building a
suitable scaling matrix.
transformed() checks if the matrix is a scaling matrix, and then
has several dispatches.
If smooth scaling was requested:
* if the image format is supported by smoothScaled() without needing a
conversion, delegate to that;
* otherwise, if the transform is "non paintable" or the source image is
big enough, then again call smoothScale. "non paintable" here means
that we're scaling more than 2x down, and QPainter wouldn't do a good
job.
Otherwise, images in color formats (>= RGB32) are converted by applying
the needed transformation on a QPainter and draw the source image with
that transformation.
Otherwise, if the matrix is invertible (a scaling matrix with non-zero
scaling always is, it's a diagonal matrix), then dispatch to
qt_xForm_helper.
--
Amend this reasoning to support CMYK images:
* Make smoothScaled support CMYK without conversions. To do so,
make qSmoothScaleImage scale CMYK as if it was a ARGB image.
* Make transformed() call smoothScaled() for CMYK images
* In transformed(), consider CMYK as nonpaintable, because we can't
paint over a CMYK image.
* In the non-smooth codepath, also check that we don't try to paint over
CMYK, and always go through qt_xForm_helper instead.
Note that we still don't support any other transformation for CMYK.
Add a test, adapting the exiting one for RGB.
Change-Id: Ic72d78923a17fb3963aa22c57265904c716792b0
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Now developer build tests compile, but some are not working.
Functional fix will come later via separate tasks.
Task-number: QTBUG-122999
Change-Id: I70487b46c1b32ba4279cb02a4978e4f55ac0d310
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
[ChangeLog][QtGui][QColorSpace] Support for CMYK color spaces has been
added.
Change-Id: I2c684dbeee8b97fc90ca4e2a892349a7fa465d06
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
This also adds image conversion of both format and color space, which
will also be required later for conversions to CMYK formats and color
spaces.
Change-Id: I578c0a010ffcdb4df4cf9080c0621fac8bc342bf
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Follow the established convention that byte-oriented image formats
have the "8888" suffix, not "32". The old enum name is temporarily
left to help port other submodules.
This work has been kindly sponsored by the QGIS project
(https://qgis.org/).
Change-Id: I4b6f10cb22312b614cb9cf4b0ac439907276c538
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
This commit adds a CMYK 8bpp format to QImage. The idea is to enable the
transport of CMYK images inside Qt, for instance to be loaded/saved from
files or painted on CMYK capable paint devices (e.g. PDF).
Also, rasterization support *from* a CMYK image is added (on top of a
RGB surface), as well as CMYK image scaling/conversion.
Conversion and rasterization between CMYK and RGB isn't particularly
optimized nor it honors any colorspaces yet. The overall idea is to
match 1:1 the existing behavior of CMYK QColor (which get naively
changed to RGB; there isn't colorspace support in QPainter yet).
There are no plans to add rasterization *towards* CMYK.
Image save/load in native CMYK formats will be added in future commits.
This work has been kindly sponsored by the QGIS project
(https://qgis.org/).
[ChangeLog][QtGui] Support for 8-bit CMYK images has been added.
Change-Id: I4b024cd4c15119c669b6ddd450418a9e425587f8
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
According to QUIP-18 [1], all tests file should be
LicenseRef-Qt-Commercial OR GPL-3.0-only
[1]: https://contribute.qt-project.org/quips/18
Pick-to: 6.7
Task-number: QTBUG-121787
Change-Id: I9657df5d660820e56c96d511ea49d321c54682e8
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
A copy without pixel ratio was made, but color table not set.
Pick-to: 6.7 6.6 6.5 6.2
Fixes: QTBUG-119902
Change-Id: I328f3faa70d7a1263061cbe51921999393e30801
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Makes it possible to add new unpremultiplied formats later.
Change-Id: Id998a2674ca9067a0e2a5f85c7baf04bcd9a9912
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
"Never use a dynamically-sized container for statically-sized data."
Port the loop from Q_FOREACH (which can't deal with arrays) to ranged
for (which can).
Pick-to: 6.6 6.5
Task-number: QTBUG-115839
Change-Id: I40773a0397b83cce0c803967ee3fd7ae274933d3
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Two rows shared a data tag. Prefixed one of them with the color of the
half-transparent image it involves (the other's is fully transparent).
Change-Id: I1bd174008ed29bcf2f460e683fdf6d1f12ba19d0
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
The default camera to plane distance is 1024, when rotating a big image
along the x or y axis, some areas of the screen may move above the
camera, causing the rotation to fail. A new rotation interface has been
added to allow users to specify the distance from the camera to the
plane themselves when rotating the QImage. Also, this support has been
added to QMatrix4x4::projectedRotate.
[ChangeLog][QtGui][QTransform] Added overloads to rotate() and
rotateRadians() that allow specifying of the distance to the rotation
plane.
Fixes: QTBUG-105088
Change-Id: I81f629916ddd9b6ab84e0282191e4284a88a85f5
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
We need to skip the exifReadComments test case if reading text from
image has been configured off, like in webOS's Yocto recipe for QtBase.
Fixes: QTBUG-105393
Pick-to: 6.4
Change-Id: If45872ca7ed26620fa38bc6b47132363d661acdc
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Avoid a full data detach when only metadata changes. This paradigm was
already used one place, and made generic.
Fixes: QTBUG-81674
Change-Id: I605253babc6ad9fc130e19e8cef3812690933ac5
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Replace the current license disclaimer in files by
a SPDX-License-Identifier.
Files that have to be modified by hand are modified.
License files are organized under LICENSES directory.
Task-number: QTBUG-67283
Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
The hugeQImage test loads, as its name suggests, a huge image.
At 2.5 GiB it's too big for the hard-coded 1 GiB limit on RAM
that the QNX toolchain hard-codes when it's started in QEMU.
Pick-to: 6.2 6.3
Task-number: QTBUG-100929
Change-Id: I8e8caaff7fd1dd0e648ada5df613c793f72bcf5d
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Unlike the other conversion functions, convertWithPalette() did not
call copyMetadata().
Fixes: QTBUG-96926
Pick-to: 6.2 5.15
Change-Id: I2b171cec16bc5a90d33e80d6fe178c650ed3fe36
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Handy when one has the data buffer to be read in a QBAV.
This also fixes an issue and compiler warning about passing a
qsizetype data length value as an int, and makes it possible to pass
a qsizetype-size length without going through QByteArray.
Makes the QByteArray overload redundant.
Change-Id: Iba8825cf0fd8003fb2eac5b1d30a61ec91b85ceb
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Useful for some HDR representations and HDR rendering.
Change-Id: If6e8a661faa3d2afdf17b6ed4d8ff5c5b2aeb30e
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The existing conversions weren't handling gamma correctly and used
an ad-hoc definition of gray instead of based on true luminance.
[ChangeLog][QtGui] RGB conversions to grayscale formats are now
gamma-corrected and produce color-space luminance values
Change-Id: I88ab870c8f5e502ddb053e6a14a75102239a26f2
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
It was treated differently depending on format, made it consistently
behave the same for all formats (following the behavior of the primary
formats).
Pick-to: 6.1 6.0 5.15
Change-Id: Ie24e19957d076fdf3ebd333074e26ede187489eb
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
This function returns the size in device independent
pixels, and should be used when calculating user
interface sizes.
Change-Id: I528123f962595a3da42438ca560289a29aca4917
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Only RGB444 and RGB666 were treated slighlty different from the rest,
but the test had a few additional mistakes.
Pick-to: 6.1 6.0 5.15
Change-Id: I4728b4036affedfffce8bca5c1e7be3869344fbe
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
A few formats were not treating the input QColor correctly. Fixed and
added more exhaustive test.
Pick-to: 6.1 6.0 5.15
Change-Id: I872aeeb45e518f9a34b4ac35642264821f9927f2
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Complete search and replace of QtTest and QtTest/QtTest with QTest, as
QtTest includes the whole module. Replace all such instances with
correct header includes. See Jira task for more discussion.
Fixes: QTBUG-88831
Change-Id: I981cfae18a1cabcabcabee376016b086d9d01f44
Pick-to: 6.0
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
QColors were not premultiplied before being set.
Pick-to: 6.0 5.15 5.12
Change-Id: Id3765b6932a72374ddfd788fae4bb628a4edf0b7
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Not testing the result of the copying, just verifying that it doesn't
assert.
Pick-to: 6.0
Change-Id: Ib51129134b74c17eada7e3819ccfff10bb9affbf
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
The logic in qgrayraster was ready for it except for an intermediate
format. qrasterizer.cpp and qcosmeticstroker.cpp uses a dot-16 fixed
point format, and had to be changed to handle higher coordinates on
64-bit architectures.
Fixes: QTBUG-84428
Change-Id: I85ab7a04e38bd0dbcefa9f16c16ccc84785a33cf
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Tests the move semantics of QImage in Qt6.
Change-Id: Ia4d95f0b88ca7dde0daf85a0f53049b42b5be1a5
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Do not always use the smoothScaled routine, the normal routines are
also optimized, and do not convert to alpha formats when not necessary.
Task-number: QTBUG-49719
Change-Id: I6ee9b620cc259472c419e7363357f41ce29b594a
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Add conversions from/to HBITMAP, HICON to QImage. Split the pixmap
conversion functions apart to use them.
Task-number: QTBUG-81876
Change-Id: Ic0c41a402a1f6e9bec572fc4d691357bd48e6423
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
[ChangeLog][QtCore][QByteArray] Remove method overloads taking
QString as argument, all of which were equivalent to passing the
toUtf8() of the string instead.
Change-Id: I9251733a9b3711153b2faddbbc907672a7cba190
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Macros and the await helper function from qfunctions_winrt(_p).h are
needed in other Qt modules which use UWP APIs on desktop windows.
Task-number: QTBUG-84434
Change-Id: Ice09c11436ad151c17bdccd2c7defadd08c13925
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Cleaning up those that are trivial to remove because they have direct
replacements.
Change-Id: I4f5c25884a01474fa2db8b369f0d883bd21edd5b
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
This exercises the multi-threaded codepath and also tests precision
a bit higher.
To avoid quadratic blowup, only a short set of formats are tested in
the larger conversion tests.
Task-number: QTBUG-82818
Change-Id: I411deb97aea61a69fbdb24cbaf6559dd9436b703
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
It wasn't tested and behaves in a very particular way.
Change-Id: I60a31681e5b221cf9a86df77e410a76ee4c10864
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
It was converted over ARGB32PM, when it should have been directly
converted to not lose accuracy, instead there was an unnecessary direct
ARGB32->RGB30 conversion, which was converted to the necessary type.
This also improves the selection of conversion over ARGB32PM or RGBA64PM
for ARGB32 and RGBA8888 by using 32-bit conversion when alpha is not
relevant.
Change-Id: I5990d8a23b2909d3910d8c1213fa46477742b052
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
During the creation of a raster paint engine in QImage::paintEngine(),
the QImage will be detached. At least old gcc versions would get
confused so that the newly created paintengine would end up in the old
QImage copy insteads of the newly detached one. Work around by
dropping the temporary engine pointer.
Fixes: QTBUG-79383
Change-Id: I27b1f24312269bc2bcc641dc4334397a92e3bfbb
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Is pretty common on some architectures so we can avoid swizzling by
supporting it.
Fixes: QTBUG-45671
Change-Id: Ic7a21b5bfb374bf7496fd2b2b1252c2f1ed47705
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
QImage comparison has always ignored differences in
metadata. Introducing colorspace comparison can break backwards
compatibility, as not all image formats or handlers have colorspace
capability.
This partially reverts commit
733ca2230c.
Fixes: QTBUG-77205
Change-Id: I1d525a9727e84502624cd118f503eec7be306c99
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Take color space into account when comparing images, and fix gamma
comparison that was trying to be too accurate.
Change-Id: I3674653abb21b66aaacb557addc4afb4ee75cfdd
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Allan Sandfeld Jensen
Eirik Aavitsland
Giuseppe D'Angelo
Jari Helaakoski
Lucie Gérard
Joni Poikelin
Marc Mutz
Edward Welbourne
JiDe Zhang
Janne Juntunen
Fabian Kosmale
Pasi Petäjäjärvi
Morten Johan Sørvig
David Skoland
Volker Hilsheimer
Friedemann Kleint
Jarek Kobus
Sona Kurazyan
Oliver Wolff