| Commit message (Collapse) | Author | Age | Files | Lines |
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As the d-pointer, QBrush uses a QScopedPointer with a
custom deleter that checks for QBrushData::style and
casts the QBrushData pointer down to corresponding
subclasses before calling delete on them.
In QBrush::detach(), however, any of the three brush
data classes were held in a QScopedPointer _without_
the custom deleter, invoking UB when that scoped
pointer would ever get to be the one that deleted
the payload instead of handing it over to the objects
d-pointer.
Found by making dtors protected following a Coverity
report wrongly marked as 'dismissed' (these static
checks are not included in this patch, since they
are binary-incompatible), to find out where Coverity
could possibly see a problem.
Also replace the d.reset(x.take()) that allowed this
mismatch to compile with d.swap(x), which nicely
ensures that x and d are of the same type.
Coverity-Id: 11772
Change-Id: I85e2c205df9291bd7508b6c90f7b03fbe8c3bcd2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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An entry was missing in one of the tables. This patch adds it back in
and adds the enum comments used to keep track of whether they all are
there and correctly set.
Change-Id: Ic6a55a8f81f9c42a3174a2a75c80c3a354f173b7
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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qt_div_255 does a fast rounded division, the form of rounding is however
only valid for positive integers.
Correct one case where it was used incorrectly and add it one place
it would be valid, and adds a comment to the function.
We were using the optimization (x*a + y*(255-a))/255 ==
(x-y)*a/255 + y but that makes the division by 255 potentially
negative.
Change-Id: Ie53aa82b66ef801f5d43f8d2ec48880cb4972f69
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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As of version 10.12 (Sierra), the name of Apple's desktop operating
system will be macOS. Change the occurrences where the Mac platform
is discussed to use a macro \macos, which expands to 'macOS'. This
helps with adapting to future renaming.
Update the instructions on mac-specific Q_OS_* macro usage.
Add a \target for the old 'Qt for OS X' topic to keep links working
for other documentation modules that try to link with the old name.
Change-Id: Id33fb0cd985df702a4ae4efb4c5fd428e77d9b85
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
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Before: HexRgb: 0.00230 ms per iteration, HexArgb: 0.00290 ms per iteration
After: HexRgb: 0.00051 ms per iteration, HexArgb: 0.00061 ms per iteration
This showed up as a relevant optimization when profiling KIconLoader
which uses QColor::name() as part of the key -- thanks to Mark Gaiser for
the investigation and first suggestion of a solution. I have also seen
customer code writing a replacement for QColor::name() because it was
too slow to be used as a hash key.
Change-Id: I009ccdd712ea0d869d466e2c9894e0cea58f0e68
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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The unneeded ';' triggered warnings in pedantic compilation mode.
Change-Id: Id2324823e138560bb25234306601253d7bbd713e
Reviewed-by: Richard J. Moore <rich@kde.org>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
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A constraint ensuring we do not sample beyond the current scan-line
was missing in the SSE2 optimized sampling.
Discovered with lancelot.
Change-Id: Ib0ece8f8bfaa034733873dc5b8baaaad5d4c0380
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
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Instead of storing a pointer to a string, store the string
in the RGBData struct. It's not as efficient as in other
such cases, because one string is particularly long, but
it's still more than acceptable.
Text size increases slightly, but data size decreases a lot
(can't say by how much, exactly, as I'm on a UBSan build).
Change-Id: I1df2985fd1ebfccd84b48315d8d319dd9e25c8e7
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
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If hex2int(const char*) is called with invalid input, it is expected to
return a negative value. However, it didn't check the return value of
h2i() before attempting a left-shift on it, leading to UB when the first
digit was already invalid.
UBSan agrees:
qcolor_p.cpp:55:23: runtime error: left shift of negative value -1
This is particularly worrisome as the function can be called with
unsanitized input.
Fix by checking each value for non-negativity, returning -1 early
when errors are detected.
Also port to QtMiscUtils::fromHex() and add some docs.
Change-Id: I33dbc157ffb4fbfba27113a0a008eef35c1055f7
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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Left-shifts of negative values are undefined in C++. In particular,
they don't behave arithmetically.
Reported by UBSan:
qrasterizer.cpp:609:48: runtime error: left shift of negative value -640/-2240
qrasterizer.cpp:982:38: runtime error: left shift of negative value -2
Fix by using ordinary multiplication instead, because negative
left-hand-side values don't look like they are an error.
No errors were actually reported for a.y << 10, but I changed it
nonetheless, since all a missing error means is that the test data
didn't excercise this code path with negative Y values.
Change-Id: I1fa9deca263f12206a3f7eab6ad875fc3242269d
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
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Left-shifts of negative values are undefined in C++. In particular,
they don't behave arithmetically.
Reported by UBSan:
qgrayraster.c:510:19: runtime error: left shift of negative value -1/-42
qgrayraster.c:537:26: runtime error: left shift of negative value -1/-4/-128
qgrayraster.c:538:26: runtime error: left shift of negative value -1/-4/-128
qgrayraster.c:641:28: runtime error: left shift of negative value -1/-42
qgrayraster.c:676:44: runtime error: left shift of negative value -1/-4/-5/-14/-129
qgrayraster.c:807:19: runtime error: left shift of negative value -1/-42
qgrayraster.c:1101:9: runtime error: left shift of negative value -32/-46/-224/-8160
qgrayraster.c:1102:9: runtime error: left shift of negative value -32/-2626
qgrayraster.c:1454:36: runtime error: left shift of negative value -32/-96/-224/-466/-2626/-8160
qgrayraster.c:1535:30: runtime error: left shift of negative value -32/-46/-224/-2626/-8160
Fix by using ordinary multiplication instead, because negative
left-hand-side values don't look like they are an error.
Change-Id: I2e96de51adb4a030de8a49869ddd98a31dab31b3
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
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Disable the scrolling optimization in QBackingStore
and fall back to repainting for non-integer deltas.
The existing rendered pixels are not re-usable in
this case.
The test is made on the delta, and not on the scale
factor. This means that user code can cooperate and
generate (logical delta, scale factor) combinations
that result in integer pixel deltas (which _can_ be
scrolled).
Change-Id: I36eb5d9e00449428bc9095edd8732782b996db16
Task-number: QTBUG-52452
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
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The fix for QTBUG-35927 introduced a too strict check when scaling from
a 16-bit source to a 16-bit destination. This patch changes the limit
to adjust to source type.
Task-number: QTBUG-54281
Change-Id: I6dd2bb8308f77520c00fa3ef6643a42462c5d351
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
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Most composition modes require an alpha-channel to be meaningful, but
not all, and there is no requirements of specific formats.
Change-Id: I11e930ccc07e9ff5df06dbda6745e4afb79f5e08
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
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Min and max expressions need matching types, which means we have to
take care both values are qreal.
Task-number: QTCREATORBUG-15851
Change-Id: I5f123e979fa896006ff6eafaac1f65b667db975d
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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This is no longer true on at least Cocoa, Windows and xcb.
Change-Id: I214caae46a8707ab7c89138646219140079e919a
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
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It could happen that the stroker would attempt to join empty subpaths,
resulting in an invalid path structure that would cause assert later.
Task-number: QTBUG-43474
Change-Id: Ia369a31e60c40cdae3900d96f15f3e83c9e78b97
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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Ensure we don't round a underline position beyond the descent in our
eagerness to avoid underlines too close to baseline.
Task-number: QTCREATORBUG-15851
Change-Id: I9a29447bbcb938b7e9fb29d52fd392a1340d07c5
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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Miter limits below 1.0 are not valid in PDF and trigger an error in the
Reader. This change enforces a minimum miter limit of 1.0, and it adds
a manual test for producing a PDF file demonstrating this issue.
Task-number: QTBUG-52641
Change-Id: I1c78b1c4a44579e95e1cddfb459926d304e60165
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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Limit the height of the the wave-pixmap so that fillRect doesn't clip
it.
At the same time the precision of the generated wave-pixmap is improved
so it better fits the requested radius.
Task-number: QTCREATORBUG-15851
Change-Id: If754387b20ab7b015857ecb0a0e8fe16de1d728a
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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Make implicit down conversions explicit to silence the most pedantic
of compiler warnings.
Task-number: QTBUG-52545
Change-Id: Id8f9574b47c8b4ee43023c80a3e009fab0e85008
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
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Task-number: QTBUG-52352
Done-with: Andy Shaw <andy.shaw@theqtcompany.com>
Change-Id: Id8dcb4a57520c2cc53483672f6578e5ab0bb5de5
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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Change-Id: I1280a496478ec6839ac432ffd63ecea28dbb972a
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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Left-shifts of negative values are undefined in C++. In particular,
they don't behave arithmetically.
Reported by UBSan:
qcosmeticstroker.cpp: 72:15: runtime error: left shift of negative value -14/-19/-32/-33/-34/-37/-38/-63/-64/-192/-384/-1280
qcosmeticstroker.cpp:444:20: runtime error: left shift of negative value -64
qcosmeticstroker.cpp:451:26: runtime error: left shift of negative value -1
qcosmeticstroker.cpp:483:26: runtime error: left shift of negative value -1
qcosmeticstroker.cpp:762:20: runtime error: left shift of negative value -64
qcosmeticstroker.cpp:774:26: runtime error: left shift of negative value -1
qcosmeticstroker.cpp:813:47: runtime error: left shift of negative value -1
qcosmeticstroker.cpp:839:20: runtime error: left shift of negative value -64
qcosmeticstroker.cpp:851:26: runtime error: left shift of negative value -1
qcosmeticstroker.cpp:889:47: runtime error: left shift of negative value -1
qcosmeticstroker.cpp:932:27: runtime error: left shift of negative value -64
qcosmeticstroker.cpp:995:27: runtime error: left shift of negative value -3/-64
Fix by using ordinary multiplication instead, because negative
left-hand-side values don't look like they are an error.
Change-Id: Icbebd41f6ddd3dca4abd385585fc0f82064fe8b6
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
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Remove placeholder formatting and add noquote.
Change-Id: I4a89f88778caf007ce42bbf57edfb514fe76bcdb
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
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Found by UBSan:
src/gui/painting/qcosmeticstroker.cpp:150:55: runtime error: index -1 out of bounds for type 'QT_FT_Span_ [255]'
src/gui/painting/qcosmeticstroker.cpp:150:99: runtime error: index -1 out of bounds for type 'QT_FT_Span_ [255]'
src/gui/painting/qcosmeticstroker.cpp:151:55: runtime error: index -1 out of bounds for type 'QT_FT_Span_ [255]'
That code path makes no sense if no span has been populated
yet, so skip the whole block if current_span == 0.
Change-Id: I832b989e89c118dc48ab5add3a28bb44c1936a76
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
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These have been wrong since being introduced in 5.3.
Change-Id: I5b4aa198c8d4c6726f1c5097abe8d43275722dab
Reviewed-by: Ljubomir Papuga <ljubomir.papuga@imgtec.com>
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
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GCC 6 is able to identify member functions that are unused.
Remove them.
Change-Id: Ic77548164b38a1cd3c957d2c57a5bccb979bc02e
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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... or similar.
This amends previous commits that converted the majority of
cases.
Task-number: QTBUG-45291
Change-Id: I219cdeddca7063a56efeb4fee0e5bb2cbdc7732b
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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Task-number: QTBUG-48823
Task-number: QTCREATORBUG-14888
Change-Id: I043a777da6b4e3dfdc58770fb136240a57707cb7
Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>
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Change-Id: I0b190005377a23a91da3563428e223b8a3b18333
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Otherwise platform backingstores providing QImages with extra pixels
would break horribly. The only such platform is wayland for now.
Previously the need to support this case was masked by the RGBA8888
image conversion that happened always with wayland due to its ARGB32_Pre
format. With the recent improvements this is not done anymore and so
the problems became apparent.
Task-number: QTBUG-50894
Change-Id: I27d7a1c8e25d152ca1227af1e2c38f7d4b6acbab
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
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Also use the target window ("win") as context instead
of d->window.
Change-Id: I5b0fa3bb857526e4a4bc9c5e44670593da1dfe7c
Task-number: QTBUG-50487
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@theqtcompany.com>
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
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Empty clipRect means "clip away completely", not "no clipping".
Task-number: QTBUG-50719
Change-Id: I6a9dd66130716a921fe9fc245582274e3c9718fe
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
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Prevent potential detaching by using constBits()/constScanLine() instead
of bits()/scanLine().
Change-Id: If03f8d4d3b8ed4c07aed5eff7f580e57ca771919
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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Convert rgba64 color table to a new rgb32 color table only once. Use
this cache when required.
This patch can 2x speed up gradient painting using 32bit color format.
Task-number: QTBUG-50930
Change-Id: I9212e01e397c2e0127cdf3070cc49880a2d8df88
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
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Change-Id: If34fa53402985f6b3c5e7217bce4a1177af835b6
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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To calculate the real count we need to use the actual fixed point
increment and can not use the floating point value increment wass based
on since it might round differently.
Includes auto-test by Gabriel de Dietrich.
Task-number: QTBUG-50153
Change-Id: Ia973088f361c90370fa20bac14a4b8f373b5d234
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@theqtcompany.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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The srcRect is already in device window coordinates. Converting it
again via deviceRect(QRect, QWindow) causes it to be overly large.
Task-number: QTBUG-50613
Change-Id: Iaae390499c0d1add842bde6eec22fb07c8de663b
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
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Optimizes composition on platforms that may use 10-bit per color channel
formats.
Change-Id: Ib303c391d47795c79a4ba55d78dbb1c3c702d90a
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
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Detect premultiplied backing store and upload it without conversion
and adjust blend to not multiply alpha again.
Task-number: QTBUG-50381
Change-Id: I51939c4f82fbb0c48eaca6e2475bf4cf3722bc2d
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
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Change-Id: I018a1fe4bdbbe42b683793d7ddbf19f464d6e3b0
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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Render-to-texture widgets that are native children may have a non-zero
offset telling the position within the top-level widget. The size is
usually different (smaller) than the tlw's size as well.
An unfortunate optimization attempt led to ignoring the size for native
children with offset (0, 0). This resulted in interesting rendering
artifacts whenever such widgets were placed in the top-left corner of
the toplevel. This is now corrected.
Task-number: QTBUG-48130
Change-Id: If449610c3f3333cb73ae149efaefd7ef42953951
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
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Change-Id: I1ae84d0ae825e9fb474d4fab45b0c475a3878b25
Reviewed-by: David Faure <david.faure@kdab.com>
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Change-Id: I5d11f84181cad9be644e850c83459b47ec2f2f15
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
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Use the macro we have that does exactly what we want without the boiler
plate code.
Change-Id: I25c67a71f83f91f50128c8a54033ee53ad28e88a
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>
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Change-Id: Iec7814b0aca74ddc9744af358561b18b96d7a266
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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Change-Id: I8636993571b04d8cda74708777ba3ef2bac09fb5
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
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The pixman drawhelpers are implemented using GAS syntax, which the
Clang assembler doesn't handle, nor do they work on 64-bit ARM, so
we disable them selectively. They are only used for 16-bit surfaces
anyways, so it not a big deal on iOS.
(cherry picked from commit 49568df95450733dc4c273945e5ced218132c123)
Change-Id: I70848981c794739d40a6a2d9a537307bc80d61a6
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
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Use QDebugStateSaver, drop the multiline format, check for null, empty and
output rectangular regions as:
QRegion(0,0 252x188)
and complicated regions as:
QRegion(size=4, bounds=(0,0 278x262) - [(0,0 278x13), (0,13 13x188), (265,13 13x188), (0,201 278x61)])
Change-Id: I82b8f58af08f7128e6cf2c2c8b06c4684fc6a9c8
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
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