QColor always uses unpremultiplied alpha, but the new QImage methods
were based on the QRgb versions which might be either. This patches fixes
the two new methods so they treat QColor alpha correctly.
Change-Id: I78a5b875ad4e78ad7fde3b811c6187482b4f6d15
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
- Replace Q[TRY]_VERIFY(pointer == 0) by Q[TRY]_VERIFY(!pointer).
- Replace Q[TRY]_VERIFY(smartPointer == 0) by
Q[TRY]_VERIFY(smartPointer.isNull()).
- Replace Q[TRY]_VERIFY(a == b) by Q[TRY]_COMPARE(a, b) and
add casts where necessary. The values will then be logged
should a test fail.
Change-Id: I624deb320c378c18a29b3707f48583d53bfd5186
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
When a premultiplied alpha changes value because it is rounded to fewer
bits the premultiplied colors may need to be recalculated with the new
value. Otherwise the color will both be wrong and potentially invalid.
Change-Id: I9ec74a22aac73cd7ffab04e180cf2bf35bb4c315
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Make it possible to read images with EXIF orientation automatically
applied. This was originally implemented without opt-out in Qt 5.4, but
reverted. Here it is implemented as opt-in for JPEG, and opt-out for TIFF
to keep behavioral consistency.
The EXIF support for JPEG was written by Rainer Keller.
[ChangeLog][QtGui][Image plugins] An option has been added to
QImageReader to enable automatic application of EXIF orientation.
This behavior was default in Qt 5.4.1, but reverted in Qt 5.4.2.
Task-number: QTBUG-37946
Task-number: QTBUG-43563
Task-number: QTBUG-45552
Task-number: QTBUG-45865
Change-Id: Iaafd2519b63ede66ecc1f8aa4c7118081312b8f5
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Completes the inplace converters so that we can rely on inplace
conversions to succede as long as the image depth is the same.
Change-Id: Ia1ae34b5de1bc16e87ff5403bdacfcae44a22791
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Some inplace conversions would not set the requested image format in
the returned image, due to the same conversion being used for several
destination formats.
This patch ensures all inplace conversions return the right format,
and adds testing infrastructure to easily test iterate over all formats
so that they all can be tested.
Change-Id: I68ab17a713ddb2aa8ed6aaf0a0a1ec8bbcb56090
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
The one converters from RGB30 was misplaced in the method table, and
the unpremultiplication from A2RGB30 to RGB30 had an underflow mistake
when alpha was 2.
Change-Id: I92c11ede28611a3dbdce72aca1898845c120c209
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Due to a behavior change.
This reverts commit 9157087334.
This reverts commit 16c32c6dfb.
Task-number: QTBUG-37946
Task-number: QTBUG-45552
Task-number: QTBUG-43563
Change-Id: Idf8df7d8f22465e8f6b51acb68993ac97208b184
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Some QImage methods were not preserving image metadata, or only
preserving some of it. This adds the missing parts and adds a test for
metadata.
Change-Id: Ib5892a23e49dfde5ea26074d3deaa887fa930c6b
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
The QImage inplace mirroring method, failed to handle the middle line
when mirroring both ways (rotate 180). In both other mirroring cases
the middle can be left untouched, but in this case it needs to be
mirrored half way.
To make the logic simpler, double mirroring will now mirror half the
lines instead of half of every line.
Change-Id: Iaa1f1e1c3f7dedfb78891fc93207f6d0c64bcafe
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Cleaning up smoothscale code. Upscaling is improved using existing
optimized interpolation methods, and downscale is given SSE4.1
optimized versions.
Change-Id: I7cdc256c26850948aef7dae26fda1622be6b8179
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
This continues 68762151db
When doing format conversion, the optimized inplace codepath did not
check if the image data was external, i.e. if the QImage had been
created by the constructor taking an existing external buffer.
The previous commit fixed the readonly case. But in the case of the
QImage constructor taking non-const uchar*, data will be read-write,
but still external. This would of course crash if the converter tries
to realloc it.
Task-number: QTBUG-44610
Change-Id: I94d275d464e8af221682b538fc3e4897a59c061e
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Improves the conversion from RGB888 to RGB32 on platforms without SIMD
versions. This includes the fallback used on non-neon ARM devices.
Besides image conversion the routine is also used for decoding JPEG.
On x86 this version is within 0.7x of the speed of the SSSE3 version.
Change-Id: Id131994d7c3c4f879d89e80f9d6c435bb5535ed7
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
When doing format conversion, the optimized inplace codepath did not
check if the image data was readonly, i.e. if the QImage had been
created by the constructor taking an existing external buffer.
Task-number: QTBUG-44610
Change-Id: I085ff8da427bc4ee392f548dffd2418b63148965
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Outdated header.LGPL removed (use header.LGPL21 instead)
Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)
Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination
Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
The methods for inplace conversion from RGBA to ARGB was misplaced by
one step causing conversion to RGB16 to get an invalid method.
Change-Id: I3b2b4cffe993705c48613eec7d9b7c6213f57fc2
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
We must add all test data to resources.
Change-Id: I1b18415cd53a27bd23e51ac6b738d3ed94162ac9
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
The orientation is unsigned short, read it as such. In
JPEG-files created by Ricoh/Pentax cameras, the data is saved in
Motorola format. Reading the wrong data size will produce invalid
values when converting the byte order.
Change-Id: I8f7c5dc5bfc10c02e090d3654aaefa047229a962
Task-number: QTBUG-43563
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Extend the QImage format with two 8-bit grayscale and alpha formats.
These formats have the advantage over Indexed8 that they have simpler
conversion and can be rendered to by the raster engine.
[ChangeLog][QtGui][QImage] Added support grayscale and alpha 8-bit
formats which can also be rendered to.
Change-Id: I4343c80a92a3dda196aa38d0c3ea251b094fc274
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Instead of abusing inheritance to provide convenience constructors,
use simple inline constructor functions. The name got a lower-case
q to indicate a free function. The usual fromXYZ() static methods
were deemed not fitting in this case in the initial round of review,
since they implied some kind of conversion while these functions are
simply constructors of formsts, which contain no data.
This also solves the problem that some of these ctors could have been
called with just one argument and were therefore candidates for hidden
QPixelFormat temporary injection.
QPixelFormatRgb was renamed to qPixelFormatRgba to explain the third
argument at the call site better.
There seem to be no users of this class in qt5.git at this time.
Change-Id: Ib4fe8ceb2d30744127b116a748724a3406400eb8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QImage::invertPixels may produce invalid data after inversions of
images with premultiplied alpha, because the inverted colors will be
larger than the alpha.
This patch converts any image with a premultiplied alpha channel to
ARGB32 before inverting the pixels, and then back to the original
format after the inversion.
Support is added for correct inversion of RGBA8888 and RGB30 formats.
Task-number: QTBUG-39901
Change-Id: Ief24c55f495e67ef2ad6429b5b418d02963a64dd
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Adds basic support for 10-bit per color channel formats to QImage
and the XCB plugin. This will make it possible to paint to and from
these formats, but only at 8-bit per color channel accuracy.
This also fixes Qt5 applications on X11 with native 30bit depth.
[ChangeLog][QtGui][QImage] Added support for 10-bit per color channel image formats.
Task-number: QTBUG-25998
Change-Id: I93ccd3c74bfbb0bd94b352476e5fe58a94119e1f
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Conflicts:
mkspecs/qnx-x86-qcc/qplatformdefs.h
src/corelib/global/qglobal.h
src/network/socket/qnativesocketengine_winrt.cpp
src/plugins/platforms/android/androidjniaccessibility.cpp
src/plugins/platforms/windows/qwindowswindow.cpp
Manually adjusted:
mkspecs/qnx-armle-v7-qcc/qplatformdefs.h
to include 9ce697f2d5
Thanks goes to Sergio for the qnx mkspecs adjustments.
Change-Id: I53b1fd6bc5bc884e5ee2c2b84975f58171a1cb8e
QImage::fill(uint) was incorrectly performing ARGB->RGBA conversion when
called on RGBA8888 formated images.
This patch moves the color conversion to QImage::fill(QColor) where it
belongs so that fill(uint) can behave consistent with documentation and
how it treats other formats.
The fill(uint) method had no automated tests, and this patch adds one.
[ChangeLog][QtGui][QImage] QImage::fill(uint) now fills the given pixel
value unconverted when used on RGBA8888 image, making it consistent with
the documentation and treatment of all other image formats.
Change-Id: I00a9d810c61d350dbdd7c4b9ad09e5ce11896b6d
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Its purpose in life will be to describe pixel formats
[ChangeLog][QtGui] Added QPixelFormat class
Change-Id: I74d8f974606520efb3935110ff3d6ddb5ea805a8
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
The calculation of the width/height required for the
scaling algorithm was prone to floating point rounding
issues, where the lower value got rounded down, the higher
one rounded up. This could lead to a situation where we
iterated over one more line/pixel in the line than we have
in the source image.
Correct this by passing the dimension of the source image into
the function and bounds checking the values before iterating.
Task-number: QTBUG-35927
Change-Id: If44b2235a479224660d508a0504fec40d724763a
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Currently QImage::pixel() returns the raw underlying pixel values for
RGB32. For all other pixel formats the returned value is either valid
ARGB32 or ARGB32PM.
This patch masks the undefined alpha field in RGB32 so that the return
value is well defined QRgb. It also fixes one test that relied on the
previous behavior.
Change-Id: If37463528268b7419733499d1f7bfd0d1097d21e
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Currently INV_PREMUL rounds strictly down. While PREMUL rounds evenly.
This patch adds 0x8000 to the intermediate results in INV_PREMUL before
right shifting, thereby achieving even rounding.
The rounding also makes PREMUL(INV_PREMUL()) into an identify operation,
which means we can safely convert ARGB32PM to ARGB32 and back without
ever losing color details. A test is added to verify this.
Change-Id: I1267e109caddcff0c01d726cb5c1c1e9fa5f7996
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Add ref qualified versions of QImage::convertToFormat, so that a
temporary QImage can be converted in-place to a format of equal depth.
[ChangeLog][QtGui][QImage]Added rvalue qualified convertToFormat method
for in-place conversion
Change-Id: I2eed5ffd63f5aea4ffa1147bf7607b02a49d9c5d
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
the diff -w for this commit is empty.
Started-by: Thiago Macieira <thiago.macieira@intel.com>
Change-Id: I77bb84e71c63ce75e0709e5b94bee18e3ce6ab9e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Adds inplace version of QImage::rgbSwapped() and QImage::mirrored() that
can be used on temporary QImage objects when supported by the compiler.
[ChangeLog][QtGui][QImage]Rvalue qualified mirrored and rgbSwapped methods for inline conversions
Change-Id: I4ffb658bf620dfc472d9db14c1aa70291c1fd842
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Support the byte-ordered RGBA format which is used by OpenGL, and many
endian neutral byte formats.
Task-number: QTBUG-32201
Change-Id: I77cffb4c30c69545fa96ded2f537b2ebd9351acb
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>
As long as fonts weren't used we supported using QImage in combination
with QCoreApplication in 4.x, and there's no reason we can't continue
doing so.
Task-number: QTBUG-29643
Change-Id: I2cf351d3c93f1c175bbf624e45024d39ab913111
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
