And a few cleanups of out-dated comments and dead code.
Change-Id: I59c6b9129a21b8953626cb63c3ebbf9b6c49a657
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
The context—which lives in QtGui—now knows nothing about versioned functions.
This changes the public API for getting version functions for a context.
[ChangeLog][QtGui][OpenGL] QOpenGLContext::versionFunctions() has been removed.
QOpenGLVersionFunctionsFactory::get() from the QtOpenGL module should be used
instead.
Previously one would call
context->versionFunctions<QOpenGLFunctions_4_0_Core>();
Which now becomes
QOpenGLVersionFunctionsFactory::get<QOpenGLFunctions_4_0_Core>(context);
The rest of the API should be identical.
Since glgen no longer compiles, and the links to its input (gl.spec and gl.tm)
are dead, I've edited the previously generated files manually. If glgen is
fixed, it should be quite easy to make it generate the new way.
Task-number: QTBUG-74409
Change-Id: I800527e0af16a79005b276eeb74417770193c62f
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Fix some warnings that are flagged as errors on clang10.
Change-Id: I906634c8b2bd94db42d74a7f3d10efb086e373cc
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
The windows and macOS implementations where still using QRegExp
in one place.
Change-Id: Iaf6c6ead10f7f061ff0edce889abe18751b9d308
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
Expand $$MODULE_BASE_DIR to ${QT_BUILD_DIR}.
Add library mappings for Hunspell.
Add test mappings for QtVirtualKeyboard regarding 3rdparty Hunspell and
T9Write.
Change-Id: Ief007456d0471cbcf9a03d819291edec5f63680f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Use P0608's trick to detect convertibility without narrowing;
and now that we can depend on C++17, use its features.
First, this moves the burden of detecting a narrowing conversion on
the compiler, rather than us maintaining a complicated series
of checks. Of course, this exposes
* bugs in compilers (e.g. GCC < 9 thinks that float->bool is not
narrowing;
* behavior still not (widely) implemented (pointer to bool
conversions are narrowing, P1957);
* interesting compiler choices, e.g. GCC 9 thinks that unscoped
enumerations are non-narrowing convertible to a datatype big
enum to contain all the _enumerators_, even if the underlying
type of the enum (and/or its sizeof()) is wider than the target
datatype.
Second, it allows to detect conversions that have a narrowing
conversion as an intermediate step. Given a type like
struct Bad { operator double() const; };
then an object of type Bad is implictly convertible to a type
like int via a narrowing conversion. Therefore, a connection
is possible between a signal carrying a Bad and a slot accepting
an int. We can now detect and block this.
Tests regarding scoped enumerations have been dropped,
for the simple reason that a scoped enumeration is not
implictly convertible to an integral type, so we don't have
that detection (it would constantly fail). Scoped enumerations
do not take part in narrowing conversions anyhow, cf. [dcl.init.list].
[ChangeLog][QtCore][QObject] The detection of narrowing conversions
when calling QObject::connect() when
QT_NO_NARROWING_CONVERSIONS_IN_CONNECT now takes also
into account user-defined implicit conversions that undergo
through a narrowing conversion.
Change-Id: Ie09d59203fe6283378b36dfbc54de1d58098ef51
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Mention that . matches newlines in QRegExp, but not by
default in QRegularExpression.
Change-Id: I9663fe30c7b7e068d673aa8d51884f6828e0ee59
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
It used to live in QRegularExpression, but as QRegExp gets removed from
Qt Core, the better place for it is to live in the QRegExp docs.
Also marked QRegExp as deprecated in the docs.
Change-Id: Id5b0e3040e4d46f5d806022b58fbd5b5efd58911
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
Map setFilterWildcard() and setFilterFixedString() to now use
QRegularExpression.
Change-Id: I2dff2015234decb2badfd306975dcff8553cdd7f
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
Change-Id: I7a4259ac43e59a8f50ee1c5072a3da5b977d8bfe
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
Reviewed-by: Samuel Gaist <samuel.gaist@idiap.ch>
There are cases, where the conversion from a wildcard pattern to
a regular expression should not lead to an anchored pattern. Allow
this, but adding an optional second argument to
wildcardToRegularExpression, that allows tuning the conversion.
Change-Id: Ida7a32d65ee49bf58d5f8d9906c0a0cd8954a02a
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
The CMAKE_INSTALL_RPATH cache var had the PATH type, which made
CMake transform the value into an absolute path, getting rid of the
$ORIGIN value.
Fix that by changing the cache var type to STRING.
Also clean up the all-caps commands, add a usage example and print
the install RPATH.
Change-Id: Ibf40cfde4283369ddfcf52609143799cc8e47d68
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
* support lambda expressions
* remove the need to specify result_type
* use std::invoke to apply map|filter function
* remove usage of FunctionWrapper* and createFunctionWrapper
Task-number: QTBUG-33735
Task-number: QTBUG-82646
Change-Id: Ibcbe4278f0742c29182bd506081db0abb516f85f
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
This is required to support QtVirtualKeyboard's third party OpenWnn
library.
Change-Id: I64b6a2b6b6b0259bea5aa249a8c901def31f916c
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
It doesn't exist in every instantiation of the template; this becomes
evident when attempting to build QQuickListView:
error: 'using Chain = struct QHashPrivate::MultiNodeChain<FxViewItem*>'
{aka 'struct QHashPrivate::MultiNodeChain<FxViewItem*>'} has no member named 'size'
Change-Id: I24748c15f3995083eec06d86a3c0dced2209c303
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
It doesn't make sense to lose precision, and that's a fatal warning
when used on a 32-bit platform:
implicit conversion loses integer precision: 'quint64' (aka 'unsigned long long')
to 'quint32' (aka 'unsigned int') [-Werror,-Wshorten-64-to-32]
Also fix coding style.
Amends 7ef3826497
Change-Id: I2c8f51883d74f0c6dc1b5faefe7b3ace1d9c15b9
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
As a drive-by, also fix spelling of architecture.
Change-Id: Ibeaa6b611ddbb75b9492deb5d97a64ed8b030c3a
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
This allows us to use regular expressions in bootstrapped tools
such as moc and tracegen.
Change-Id: I4310dd15bf26651aac6ab30c884e025ca06b3099
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Change the hash function of QTypeRevision and QtFontFallbacksCacheKey
to use size_t and add a few casts.
Change-Id: I89a8fc617abbe8b0c67529ec41795691c99b0574
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This change adds the setWinTabEnabled() function to Qt Platform Headers,
which allows an application to set at run-time whether the WinTab API will
be used for tablet input instead of the native Windows Ink API.
[ChangeLog][Windows] The setWinTabEnabled() function added to Qt Platform
Headers now allows an application to set at run-time whether the WinTab API
will be used for tablet input instead of the native Windows Ink API.
Fixes: QTBUG-83218
Change-Id: I51d3c7316baeda136763cf37c2f54295905450ec
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Some test cases are sensitive to the exact ordering inside
QHash, and need adjustments when we change QHash or the
hashing functions.
Some rcc tests now also need 32bit specific data, as the hashing
functions for 32 and 64 bit are different now (as we use size_t).
Change-Id: Ieab01cd55b1288336493b13c41d27e42a008bdd9
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Requires one more branch inside the loop, but that should not
really matter performance wise. And it should expand to less code.
Change-Id: I4619dd2a2e6fedf8d109009a5b6d7410ed89f1fb
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This commit replaces MurmurHash with SipHash for all strings longer than
the size of a pointer. The most important difference between those
algorithms is that MurmurHash has this unwelcome property: for two
byte sequences x and y, if you know that x and y have the same hashing
for a given seed, then they have the same hashing for all seeds.
SipHash has no such issue. If the seed changes, the strings that used to
compute to the same hash are no longer likely to do so.
We've chosen to implement a SipHash-1-2 algorithm instead of the regular
2-4 as that has roughly the same performance as the old DJB33XA
algorithm. It's around 50% slower than MurmurHash, which is
acceptable given the added security.
Task-number: QTBUG-47566
Change-Id: I09100678ff4443e6be06fffd14819c8878d223e2
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
The old implementation was either using CRC32 on modern processors
or a trivial, but rather slow implementation.
We can't continue with CRC32, as that implementation can only
give us 32bit hashes, where we now need to support 64bit in Qt 6.
Change the implementation to use MurmurHash, as public domain
implementation that is both very fast and leads to well distributed hashes.
This hash function is about as fast as the SSE optimized CRC32 implementation
but works everywhere and gives us 64 bit hash values.
Here are some numbers (time for 10M hashes):
14 char 16 char
QByteArray QString float
old qHash (non CRC32) 127ms 134ms 48ms
old qHash (using SSE CRC32 instructions 60ms 62ms 46ms
new qHash 52ms 43ms 46ms
Unfortunately MurmurHash is not safe against hash table DoS attacks, as
potential hash collisions are indepenent of the seed. This will get
addressed in followup commit, where we use SipHash or an SSE optimized
AES based hashing algorithm that does not have those issues.
Change-Id: I4fbc0ac299215b6db78c7a0a2a1d7689b0ea848b
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
At the same time use the opportunity to refactor the
insertion code inside the implementation of QHash to
avoid copy and move constructors as much as possible
and always construct nodes in place.
Change-Id: I951b4cf2c77a17f7db825c6a776aae38c2662d23
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This is required, so that QHash and QSet can hold more
than 2^32 items on 64 bit platforms.
The actual hashing functions for strings are still 32bit, this will
be changed in a follow-up commit.
Change-Id: I4372125252486075ff3a0b45ecfa818359fe103b
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
