summaryrefslogtreecommitdiffstats
path: root/src/opengl/qglshaderprogram.cpp
Commit message (Collapse)AuthorAgeFilesLines
* Remove deprecated QGL* classesJohan Klokkhammer Helsing2019-12-111-3237/+0
| | | | | | | | | | | | | | | Removes QGL paths in sub-attaq and chip examples. The boxes example depended on QGL and has been removed. The corresponding module and test directories for the opengl module are now empty, but has been left there so we can move the QOpenGL* classes there. [ChangeLog][QtOpenGL] The deprecated QGL* classes have been removed. Fixes: QTBUG-74408 Change-Id: I52f56409af8f6901359462a7ba162103d051fe3d Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* QtGui/Network/OpenGl/Widgets/Xml: use \nullptr in documentationChristian Ehrlicher2019-02-201-2/+4
| | | | | | | Replace null and '\c nullptr' with \nullptr in the documentation. Change-Id: I58934eea06943309ba895833f1991629870ab45b Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
* QtBase (remainder): use printf-style qWarning/qDebug where possible (I)Marc Mutz2016-03-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The printf-style version of QDebug expands to a lot less code than the std::ostream-style version. Of course, you pay in type safety (but compilers warn about it these days), you cannot stream complex Qt types and streaming QStrings is awkward, but in many cases you actually improve on readability. But the main reason is that something that's not supposed to be executed under normal operation has no business bloating executable code size. This is not an attempt at converting all qWarnings() to printf-style, only the low-hanging fruit. In this first part, replace qWarning() << "" with qWarning("..."). Had to fix broken qImDebug() definition. Instead of defining it as a nullary macro in the QT_NO_DEBUG case and as a variadic macro in the other, define it in both cases, as is customary, as a non-function macro so that overload selection works without requiring variadic macro support of the compiler. Saves e.g. ~250b in text size in QtPrintSupport on optimized GCC 5.3 AMD64 builds. Change-Id: Ie30fe2f7942115d5dbf99fff1750ae0d477c379f Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
* Updated license headersJani Heikkinen2016-01-151-14/+20
| | | | | | | | | | | From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new LGPL header instead of LGPL21 one (in those files which will be under LGPL v3) Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
* QtOpenGL: eradicate all remaining Q_FOREACH loopsMarc Mutz2016-01-041-3/+3
| | | | | | | | | Not many left. Still 344b saved in text size on optimized GCC 4.9 Linux AMD64 builds. Change-Id: I51ba49fe065854f84e26d25d7da5e26427ea2c0b Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com> Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* QGLShaderProgram: replace a Q_FOREACH with qDeleteAll()Marc Mutz2015-12-261-4/+2
| | | | | | Change-Id: I81a7a3accdcbd3229aeb1dc6fcda5b4ae5cd1a7b Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com> Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
* QGLShaderProgram: hoist some constant expressions out of a loopMarc Mutz2015-12-261-5/+6
| | | | | | | | | | | d->programGuard and its ID don't change when calling a GL function, so check them only once, before entering the loop, instead of once per iteration. Cache d->programGuard->id(). Change-Id: I398da7a76823b2eb854b7b9d5af512adf9969fc9 Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
* QtBase: remove explicit function info from qWarning() etcMarc Mutz2015-11-281-2/+1
| | | | | | | | | | | This information is already registered by the QMessageLogger ctor. Where, by dropping the << Q_FUNC_INFO in ostream-style qDebug(), only a string literal remained, converted to printf-style qDebug() on the go. Change-Id: I3f261c98fd7bcfa1fead381a75a82713bb75e6f3 Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
* QtGui/QtOpenGL: Fix compiler warnings by MSVC2015 (64bit).Friedemann Kleint2015-08-031-1/+1
| | | | | | | | | | opengl\qtriangulatingstroker.cpp(130): warning C4305: '=': truncation from 'double' to 'float' opengl\qtriangulatingstroker.cpp(546): warning C4305: '=': truncation from 'double' to 'float' opengl\qopenglshaderprogram.cpp(1779): warning C4312: 'reinterpret_cast': conversion from 'int' to 'const void *' of greater size qglshaderprogram.cpp(1709): warning C4312: 'reinterpret_cast': conversion from 'int' to 'const void *' of greater size Change-Id: If1de629aada308d18c3641b504d74d3294b1e8bf Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
* Update copyright headersJani Heikkinen2015-02-111-7/+7
| | | | | | | | | | | | | | | | | | 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>
* Doc: Use title case in section1 titlesNico Vertriest2014-09-301-3/+3
| | | | | | | | Using Python script title-cased.py Task-number: QTBUG-41250 Change-Id: I00d3d7a0b30db7304a7904efd6d63abd9a7b493b Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
* Update license headers and add new license filesMatti Paaso2014-09-241-19/+11
| | | | | | | | | - Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 - Removed LICENSE.GPL Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2 Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
* Merge remote-tracking branch 'origin/stable' into devFrederik Gladhorn2014-05-061-6/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: mkspecs/qnx-x86-qcc/qplatformdefs.h src/corelib/global/qglobal.h src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp src/opengl/qgl.cpp src/opengl/qglpixelbuffer.cpp src/opengl/qglshaderprogram.cpp tests/auto/opengl/qglthreads/tst_qglthreads.cpp Change-Id: Iaba137884d3526a139000ca26fee02bb27b5cdb5
| * Rename new QOpenGLContext APIsLaszlo Agocs2014-04-251-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | isES() becomes isOpenGLES(). The library type enums are changed DesktopGL -> LibGL and GLES2 -> LibGLES. This removes the now unnecessary version number, the confusing "desktop" term and provides better readability. The old function/values are kept until the related qtdeclarative changes are integrated. Task-number: QTBUG-38564 Change-Id: Ibb0a1209985f1ce4bb9451f9b7b093c2b68a6505 Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* | Remove direct OpenGL calls from QtOpenGLLaszlo Agocs2014-04-281-2/+3
|/ | | | | | Task-number: QTBUG-36483 Change-Id: I96dea5649c0a49a11cd2ff31da659cd2067e769d Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
* Add note to docs about normalization in setAttributeBufferLaszlo Agocs2014-03-171-0/+6
| | | | | | Task-number: QTBUG-37103 Change-Id: I0b1716b76e10c65871c6a96dab5d8d81c95095d7 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Dynamic GL: remove exporting symbolsLaszlo Agocs2014-03-041-7/+7
| | | | | | | | | | | | | | | | | | | | | Remove the opengl proxy for now. Later it will either be moved into a separate library or replaced by a QOpenGLFunctions-based approach. This means that the -opengl dynamic configuration is not usable for the time being. The rest of the enablers remain in place. The convenience function QOpenGLFunctions::isES() is now moved to QOpenGLContext and is changed to check the renderable type. This is extremely useful since besides supporting dynamic GL it solves also the problem of GL_ARB_ES2_compatibility (i.e. it triggers the real ES path when creating an ES-compatible context with a desktop OpenGL implementation). Task-number: QTBUG-36483 Task-number: QTBUG-37172 Change-Id: I045be3fc16e9043e1528cf48e6bf0903da4fa7ca Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com> Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
* Dynamic GL switch on WindowsLaszlo Agocs2014-02-141-12/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch introduces a new build configuration on Windows which can be requested by passing -opengl dynamic to configure. Platforms other than Windows (including WinRT) are not affected. The existing Angle and desktop configurations are not affected. These continue to function as before and Angle remains the default. In the future, when all modules have added support for the dynamic path, as described below, the default configuration could be changed to be the dynamic one. This would allow providing a single set of binaries in the official builds instead of the current two. When requesting dynamic GL, Angle is built but QT_OPENGL_ES[_2] are never defined. Instead, the code path that has traditionally been desktop GL only becomes the dynamic path that has to do runtime checks. Qt modules and applications are not linked to opengl32.dll or libegl/glesv2.dll in this case. Instead, QtGui exports all necessary egl/egl/gl functions which will, under the hood, forward all requests to a dynamically loaded EGL/WGL/GL implementation. Porting guide (better said, changes needed to prepare your code to work with dynamic GL builds when the fallback to Angle is utilized): 1. In !QT_OPENGL_ES[_2] code branches use QOpenGLFunctions::isES() to differentiate between desktop and ES where needed. Keep in mind that it is the desktop GL header (plus qopenglext.h) that is included, not the GLES one. QtGui's proxy will handle some differences, for example calling glClearDepth will route to glClearDepthf when needed. The built-in eglGetProcAddress is able to retrieve pointers for standard GLES2 functions too so code resolving OpenGL 2 functions will function in any case. 2. QT_CONFIG will contain "opengl" and "dynamicgl" in dynamic builds, but never "angle" or "opengles2". 3. The preprocessor define QT_OPENGL_DYNAMIC is also available in dynamic builds. The usage of this is strongly discouraged and should not be needed anywhere except for QtGui and the platform plugin. 4. Code in need of the library handle can use QOpenGLFunctions::platformGLHandle(). The decision on which library to load is currently based on a simple test that creates a dummy window/context and tries to resolve an OpenGL 2 function. If this fails, it goes for Angle. This seems to work well on Win7 PCs for example that do not have proper graphics drivers providing OpenGL installed but are D3D9 capable using the default drivers. Setting QT_OPENGL to desktop or angle skips the test and forces usage of the given GL. There are also two new application attributes that could be used for the same purpose. If Angle is requested but the libraries are not present, desktop is tried. If desktop is requested, or if angle is requested but nothing works, the EGL/WGL functions will still be callable but will return 0. This conveniently means that eglInitialize() and such will report a failure. Debug messages can be enabled by setting QT_OPENGLPROXY_DEBUG. This will tell which implementation is chosen. The textures example application is ported to OpenGL 2, the GL 1 code path is removed. [ChangeLog][QtGui] Qt builds on Windows can now be configured for dynamic loading of the OpenGL implementation. This can be requested by passing -opengl dynamic to configure. In this mode no modules will link to opengl32.dll or Angle's libegl/libglesv2. Instead, QtGui will dynamically choose between desktop and Angle during the first GL/EGL/WGL call. This allows deploying applications with a single set of Qt libraries with the ability of transparently falling back to Angle in case the opengl32.dll is not suitable, due to missing graphics drivers for example. Task-number: QTBUG-36483 Change-Id: I716fdebbf60b355b7d9ef57d1e069eef366b4ab9 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com> Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
* Doc: Adding mark-up to boolean default values.Jerome Pasion2013-10-081-15/+15
| | | | | | | | | | | | | | | | | Default values should have mark-up to denote that they are code. This commit changes: -"property is true" to "property is \c true". -"Returns true" to "Returns \c true". -"property is false" to "property is \c false". -"returns true" to "returns \c true". -"returns false" to "returns \c false". src/3rdparty and non-documentation instances were ignored. Task-number: QTBUG-33360 Change-Id: Ie87eaa57af947caa1230602b61c5c46292a4cf4e Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
* Prevent QOpenGLShaderProgram::link() from showing unnecessary warnings.Samuel Rødal2013-05-241-4/+6
| | | | | | | | | | | | | | | If the liking didn't fail there's no need to print out warnings. The warnings can still be accessed by the application after calling link() through the log() function. This prevents warnings such as these from appearing: QOpenGLShader::link: "No errors." Task-number: QTBUG-31326 Change-Id: I03c9be5dfada8822c3ab1c3610eac2fc0a91410b Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com> Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* Remove duplicated code for handling OpenGL extensions in QtOpenGLTor Arne Vestbø2013-02-171-154/+145
| | | | | | | | | | We now re-use QOpenGLExtensions/Functions from QtGui in the same way as QtGui uses these classes. There is still some duplicated logic in qglfunctions.cpp, but this code now at least uses the shared QOpenGLExtensionMatcher class. Change-Id: Ie04008c43d430ae805e6ec1c45e7e363deeb3b8f Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
* Update copyright year in Digia's license headersSergio Ahumada2013-01-181-1/+1
| | | | | Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
* Improve OpenGL docsJan Arve Saether2012-11-271-0/+2
| | | | | | | | | * Mark all Open GL classes with \inmodule QtOpenGL. Otherwise, they weren't listed in the list of classes. * Remove a reference to Motif Change-Id: I75680712b212cf46b869014d3678b56d022c6323 Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
* Change copyrights from Nokia to DigiaIikka Eklund2012-09-221-24/+24
| | | | | | | | Change copyrights and license headers from Nokia to Digia Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e Reviewed-by: Lars Knoll <lars.knoll@digia.com> Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
* Documented QtOpenGL classes that have better replacements as obsolete.Samuel Rødal2012-09-141-0/+6
| | | | | | | These have new replacements in QtGui since Qt 5.0. Change-Id: I20e8fdd4e9c14d8c626eda3072217af1858bf492 Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
* Make gui/math3d classes use float rather than qrealSean Harmer2012-09-071-67/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This corrects the mismatch between using floats for internal storage and qreal in the API of QVector*D which leads to lots of implicit casts between double and float. This change also stops users from being surprised by the loss of precision when using these classes on desktop platforms and removes the need for the private constructors taking a dummy int as the final argument. The QMatrix4x4 and QQuaternion classes have been changed to use float for their internal storage since these are meant to be used in conjunction with the QVector*D classes. This is to prevent unexpected loss of precision and to improve performance. The on-disk format has also been changed from double to float thereby reducing the storage required when streaming vectors and matrices. This is potentially a large saving when working with complex 3D meshes etc. This also has a significant performance improvement when passing matrices to QOpenGLShaderProgram (and QGLShaderProgram) as we no longer have to iterate and convert the data to floats. This is an operation that could easily be needed many times per frame. This change also opens the door for further optimisations of these classes to be implemented by using SIMD intrinsics. This needs to be applied in conjunction with https://codereview.qt-project.org/#change,33548 Task-number: QTBUG-21035 Task-number: QTBUG-20661 Change-Id: I9321b06040ffb93ae1cbd72fd2013267ac901b2e Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* OpenGL: Use official glext.h and gl2ext.h headersSean Harmer2012-08-201-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Khronos group makes the glext.h (Desktop OpenGL) and gl2ext.h (OpenGL ES2) headers officially available nowadays. Most (all?) Linux systems ship this by default. On Windows platforms the glext.h file needs to be downloaded from http://www.opengl.org/registry/api/glext.h and placed alongside the system OpenGL header. Making use of the official header reduces the maintenance overhead for OpenGL support in Qt by removing the need to copy and paste definitions into the Qt sources. As the Khronos-provided headers are standardised and backwards and forwards compatible we can utilise these for all platforms rather than just for Windows. This means that all definitions required by Qt will be present even if the system ships out-dated equivalents. Mac OS X needs special handling in that we should always use the system-provided headers there. This is because Apple controls the OpenGL driver and the headers that go along with it. As such there is no possibility that the driver exposes additional functionality compared with the system-provided OpenGL headers. Apple has also decided to make different decisions about some OpenGL typedefs compared to other implementations. For example, Apple typdefs GLhandleARB to void* whereas other platforms use unsigned int. The alternative, which is to use the system provided glext.h (or gl2ext.h) header means that Qt code would need to check for the availability of such definitions wherever it is not guaranteed to be provided by core OpenGL/ES just to compile. The proposed approach means that Qt can compile regardless of the system's OpenGL extension support. We just need to be rigourous in runtime checking of support for extensions but that is already a requirement (and is missing in a few places, see TODO's added in this commit). The official Khronos headers are added to Qt as qopenglext.h - Desktop OpenGL qopengles2ext.h - OpenGL ES2 They need to be public but not part of QtGui module include, hence the headers have been modified by adding #if 0 #pragma qt_no_master_include #endif to them. This has been tested on: Gentoo Linux with GCC 4.6.3 Windows 7 with MSVC 2010 Mac OSX 10.8 with Apple clang 4.0 (based on LLVM 3.1svn) QNX with qcc (based on GCC 4.4) A small change is needed to QtDeclarative when building for OpenGL ES 2 after applying this commit. See https://codereview.qt-project.org/#change,31794 Change-Id: I4b3d2b1680baf4c78be9a87b4d8de076d23e8f82 Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com> Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
* Windows: Add ANGLE support.Friedemann Kleint2012-05-311-1/+2
| | | | | | | | | | | | | | | | | | - Add QWindowsEGLContext usable for ANGLE and Windows CE. - Add QWindowsEGLStaticContext containing the display for resource cleanup. - Add EGLSurface to QWindowsWindow. - Add a -angle option specifying the path to the external ANGLE installation to configure, add libraries to the mkspecs. Initial-patch-by: Jabot Corentin <corentinjabot@gmail.com> Task-number: QTBUG-24207 Change-Id: I5f80b1efb6996da7c5d70aa3720f7801c9e4c6af Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com> Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
* Doc: Modularize QtOpenGL documentation.Casper van Donderen2012-05-091-3/+3
| | | | | | | This change moves the snippets to the modularized directories. Change-Id: Ifcf22fa3f234681f851d1e7eed5fe44e2e223ffd Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
* Remove "All rights reserved" line from license headers.Jason McDonald2012-01-301-1/+1
| | | | | | | | | | As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Update contact information in license headers.Jason McDonald2012-01-231-1/+1
| | | | | | | Replace Nokia contact email address with Qt Project website. Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* Update copyright year in license headers.Jason McDonald2012-01-051-1/+1
| | | | | Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
* opengl: Do not crash when programGuard is a nullptrHolger Hans Peter Freyther2011-12-011-1/+1
| | | | | | | | The rest of the code is checking programGuard for nullptr, do it here as well to prevent a segmentation fault. Change-Id: I38a03f74d493b8f731157be1739707b39904f7ba Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
* Copy core GL functionality to QtGui with QGL -> QOpenGL naming.Samuel Rødal2011-08-291-5/+2
| | | | | | Change-Id: Ibc989afa4a30dd184d41d1a1cd89f97196e48855 Reviewed-on: http://codereview.qt.nokia.com/3710 Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
* Move GL resource handling enablers to QtGui.Samuel Rødal2011-08-291-68/+74
| | | | | | | | | | | Made resource handling more robust by attempting to free GL resources in the correct thread, and not forcing a context to become current to free resources. Change-Id: Ie81d4005b608972375755571d9b50ce82080709b Reviewed-on: http://codereview.qt.nokia.com/3258 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
* Get rid of OpenGL 1.x engine and platform code from QtOpenGL.Samuel Rødal2011-08-161-84/+0
| | | | | | | Change-Id: I646b8e26d5e7214432a044866764d57cc11b2390 Reviewed-on: http://codereview.qt.nokia.com/3006 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>
* Update licenseheader text in source files for qtbase Qt moduleJyri Tahtela2011-05-241-17/+17
| | | | | | | Updated version of LGPL and FDL licenseheaders. Apply release phase licenseheaders for all source files. Reviewed-by: Trust Me
* Add ability to work around non-standard GLES implementationsPaul Olav Tvete2011-05-181-3/+3
| | | | Reviewed-by: Gunnar
* Initial import from the monolithic Qt.Qt by Nokia2011-04-271-0/+3354
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12