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* Use SPDX license identifiersLucie Gérard2022-05-167-343/+14
| | | | | | | | | | | | | 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>
* Compose render-to-texture widgets through QRhiLaszlo Agocs2022-03-115-22/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | QPlatformTextureList holds a QRhiTexture instead of GLuint. A QPlatformBackingStore now optionally can own a QRhi and a QRhiSwapChain for the associated window. Non-GL rendering must use this QRhi everywhere, whereas GL (QOpenGLWidget) can choose to still rely on resource sharing between contexts. A widget tells that it wants QRhi and the desired configuration in a new virtual function in QWidgetPrivate returning a QPlatformBackingStoreRhiConfig. This is evaluated (among a top-level's all children) upon create() before creating the repaint manager and the QWidgetWindow. In QOpenGLWidget what do request is obvious: it will request an OpenGL-based QRhi. QQuickWidget (or a potential future QRhiWidget) will be more interesting: it needs to honor the standard Qt Quick env.vars. and QQuickWindow APIs (or, in whatever way the user configured the QRhiWidget), and so will set up the config struct accordingly. In addition, the rhiconfig and surface type is (re)evaluated when (re)parenting a widget to a new tlw. If needed, this will now trigger a destroy - create on the tlw. This should be be safe to do in setParent. When multiple child widgets report an enabled rhiconfig, the first one (the first child encountered) wins. So e.g. attempting to have a QOpenGLWidget and a Vulkan-based QQuickWidget in the same top-level window will fail one of the widgets (it likely won't render). RasterGLSurface is no longer used by widgets. Rather, the appropriate surface type is chosen. The rhi support in the backingstore is usable without widgets as well. To make rhiFlush() functional, one needs to call setRhiConfig() after creating the QBackingStore. (like QWidget does to top-level windows) Most of the QT_NO_OPENGL ifdefs are eliminated all over the place. Everything with QRhi is unconditional code at compile time, except the actual initialization. Having to plumb the widget tlw's shareContext (or, now, the QRhi) through QWindowPrivate is no longer needed. The old approach does not scale: to implement composeAndFlush (now rhiFlush) we need more than just a QRhi object, and this way we no longer pollute everything starting from the widget level (QWidget's topextra -> QWidgetWindow -> QWindowPrivate) just to send data around. The BackingStoreOpenGLSupport interface and the QtGui - QtOpenGL split is all gone. Instead, there is a QBackingStoreDefaultCompositor in QtGui which is what the default implementations of composeAndFlush and toTexture call. (overriding composeAndFlush and co. f.ex. in eglfs should continue working mostly as-is, apart from adapting to the texture list changes and getting the native OpenGL texture id out of the QRhiTexture) As QQuickWidget is way too complicated to just port as-is, an rhi manual test (rhiwidget) is introduced as a first step, in ordewr to exercise a simple, custom render-to-texture widget that does something using a (not necessarily OpenGL-backed) QRhi and acts as fully functional QWidget (modeled after QOpenGLWidget). This can also form the foundation of a potential future QRhiWidget. It is also possible to force the QRhi-based flushing always, regardless of the presence of render-to-texture widgets. To exercise this, set the env.var. QT_WIDGETS_RHI=1. This picks a platform-specific default, and can be overridden with QT_WIDGETS_RHI_BACKEND. (in sync with Qt Quick) This can eventually be extended to query the platform plugin as well to check if the platform plugin prefers to always do flushes with a 3D API. QOpenGLWidget should work like before from the user's perspective, while internally it has to do some things differently to play nice and prevent regressions with the new rendering architecture. To exercise this better, the qopenglwidget example gets a new tab-based view (that could perhaps replace the example's main window later on?). The openglwidget manual test is made compatible with Qt 6, and gets a counterpart in form of the dockedopenglwidget manual test, which is a modified version of the cube example that features dock widgets. This is relevant in particular because render-to-texture widgets within a QDockWidget has its own specific quirks, with logic taking this into account, hence testing is essential. For existing applications there are two important consequences with this patch in place: - Once the rhi-based composition is enabled, it stays active for the lifetime of the top-level window. - Dynamically creating and parenting the first render-to-texture widget to an already created tlw will destroy and recreate the tlw (and the underlying window). The visible effects of this depend on the platform. (e.g. the window may disappear and reappear on some, whereas with other windowing systems it is not noticeable at all - this is not really different from similar situtions with reparenting or when moving windows between screens, so should be acceptable in practice) - On iOS raster windows are flushed with Metal (and rhi) from now on (previously this was through OpenGL by making flush() call composeAndFlush(). Change-Id: Id05bd0f7a26fa845f8b7ad8eedda3b0e78ab7a4e Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
* Examples: Remove unneeded CMake optionsKai Köhne2022-01-241-4/+0
| | | | | | | | | | | | | | | CMAKE_INCLUDE_CURRENT_DIR is not necessary anymore for moc since CMake 3.8: https://cmake.org/cmake/help/latest/release/3.8.html#other-changes CMAKE_AUTORCC should not be used anymore. Instead, we now use qt_add_resources() or similar Enable CMAKE_AUTOUIC only if .ui files are present. Pick-to: 6.3 Task-number: QTBUG-87643 Change-Id: I835e2994cd5dba9918136999499b9077961b616c Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
* Examples: Fix whitespace issues in CMakeLists.txtKai Köhne2021-12-131-2/+3
| | | | | | Pick-to: 6.3 Change-Id: I8e6dd1f250f8be6016ee4164cb2ab7034cbb1203 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Examples: Remove remaining conversion markers in CMakeLists.txtKai Köhne2021-12-131-2/+0
| | | | | | Pick-to: 6.3 Change-Id: Ia5d474a3efd6aadbd0ef1537318f2f24e6c24fee Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Examples: Use find_package(Qt6 REQUIRED COMPONENTS ...) idiomKai Köhne2021-12-101-5/+1
| | | | | | | | | Also consolidate several find_package(Qt6 ...) calls in one call. Task-number: QTBUG-98867 Change-Id: Idfd5e71f46d4489fac7411cbfadb84437a0658f3 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
* Raise cmake_minimum_required to VERSION 3.16 in examplesJoerg Bornemann2021-08-171-1/+1
| | | | | | | Pick-to: 6.2 Task-number: QTBUG-95636 Change-Id: I1270b4846d8a23bc3563b6942c0910e095d2be4a Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* CMake: Regenerate examples to set the WIN32_EXECUTABLE propertyAlexandru Croitor2020-10-271-0/+4
| | | | | | | | | As well as the MACOSX_BUNDLE properties as necessary. Task-number: QTBUG-87664 Task-number: QTBUG-86827 Change-Id: I7677449a26d51fa853bd67bab6b3b61afbd2b12f Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
* CMake: Regenerate examples to use qt_add_executableAlexandru Croitor2020-10-191-1/+1
| | | | | | Task-number: QTBUG-87661 Change-Id: I0dacfdc97a3fb7d88da85b67800f2c1b084d869b Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
* Switch QSurfaceFormat::colorSpace to a QColorSpaceAllan Sandfeld Jensen2020-09-151-1/+2
| | | | | | | Allows more flexibility in the future. Change-Id: Idcf2d8ddaee268a7b5d55379ccb42dd9b3c33abf Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
* CMake: Regenerate examplesAlexandru Croitor2020-07-091-1/+5
| | | | | | Change-Id: I1c51b10af4e2b26f54740f257164c56a0e2a03ce Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* Use QList instead of QVector in examplesJarek Kobus2020-06-233-6/+6
| | | | | | Task-number: QTBUG-84469 Change-Id: Id14119168bb1bf11f99bda7ef6ee9cf51bcfab2e Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
* Move QOpenGLWidget from QtOpenGL to its own moduleJohan Klokkhammer Helsing2020-02-182-1/+3
| | | | | | | | Same pattern as QtQuickWidgets. Gets rid of QtOpenGL's dependency on QtWidgets. Task-number: QTBUG-74409 Change-Id: I4f9b55c23e25a1e0519734037b768a16e870c7d2 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* QSpinBox: remove deprecated signal valueChanged(const QString &)Vitaly Fanaskov2020-02-101-1/+1
| | | | | | Task-number: QTBUG-81845 Change-Id: I91148cac553f63b44968337ccc121e7376ee4465 Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
* Post Merge FixesLeander Beernaert2020-01-241-2/+4
| | | | | Change-Id: I1e06c01b76b119c3f23b6e6ecbaae8df719b70ce Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Merge remote-tracking branch 'origin/dev' into merge-devLeander Beernaert2020-01-241-1/+1
|\ | | | | | | Change-Id: I31b761cfd5ea01373c60d02a5da8c33398d34739
| * Move QOpenGLWidget from QtWidgets to QtOpenGLJohan Klokkhammer Helsing2019-12-121-1/+1
| | | | | | | | | | | | Task-number: QTBUG-74409 Change-Id: I98a4f8a9e1d439bfdc24eb2910385273cedecd29 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* | Merge remote-tracking branch 'origin/dev' into wip/cmakeAlexandru Croitor2019-10-144-37/+26
|\| | | | | | | Change-Id: I4a78428a8ea273b6960792e3b8043f816fa37fcf
| * Cleanup QtOpenGL examplesChristian Ehrlicher2019-09-304-37/+26
| | | | | | | | | | | | | | | | | | | | | | Cleanup the OpenGL examples - use nullptr (clang-tidy) - use member-initialization - avoid redundant checks for != nullptr when deleting a pointer Change-Id: I3e4702690ed79e71c3e952d51ceef83b907b45b7 Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* | cmake: add examples/openglFrederik Gladhorn2019-10-071-0/+47
|/ | | | | | | Fixes: QTBUG-78164 Change-Id: Iccc8bb1354d2362c950de17a6c00e00f95272967 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io> Reviewed-by: Qt CMake Build Bot
* Convert uses of QTime as a timer to QElapsedTimerEdward Welbourne2019-06-141-2/+2
| | | | | | | | Change-Id: I2297f61efa5adf9ea5194c7f3ff68574cbcf452c Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
* examples: port away from Java-style iteratorsMarc Mutz2019-05-231-5/+2
| | | | | | | | | | | There's no reason to use them here, the Mutable is misleading in a few instances, ranged-for is much simpler, and more future-proof. Change-Id: Ifd5eaae95bbaa0b4cf0f435e6cfee6d778817b44 Reviewed-by: David Faure <david.faure@kdab.com>
* Examples: cleanup foreach usageChristian Ehrlicher2019-02-022-4/+4
| | | | | | | Replace deprecated foreach macro with range-based for loop Change-Id: If919ba1d1d4acddfc1c5460ce7aebf8c49e3ac38 Reviewed-by: Paul Wicking <paul.wicking@qt.io>
* Change almost all other uses of qrand() to QRandomGeneratorThiago Macieira2017-11-083-10/+14
| | | | | | | | | | | | | | | | | | | The vast majority is actually switched to QRandomGenerator::bounded(), which gives a mostly uniform distribution over the [0, bound) range. There are very few floating point cases left, as many of those that did use floating point did not need to, after all. (I did leave some that were too ugly for me to understand) This commit also found a couple of calls to rand() instead of qrand(). This commit does not include changes to SSL code that continues to use qrand() (job for someone else): src/network/ssl/qsslkey_qt.cpp src/network/ssl/qsslsocket_mac.cpp tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp Change-Id: Icd0e0d4b27cb4e5eb892fffd14b5285d43f4afbf Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Merge remote-tracking branch 'origin/5.9' into 5.10Liang Qi2017-09-061-2/+17
|\ | | | | | | | | | | | | | | | | | | Conflicts: examples/opengl/qopenglwidget/main.cpp src/3rdparty/pcre2/src/pcre2_printint.c src/plugins/platforms/cocoa/qnsview.mm src/widgets/widgets/qcombobox.cpp Change-Id: I37ced9da1e8056f95851568bcc52cd5dc34f56af
| * OpenGL examples: Introduce QCommandLineParserFriedemann Kleint2017-09-051-1/+14
| | | | | | | | | | | | Task-number: QTBUG-60626 Change-Id: I6d102327c89206fcdce10f3ac04e112270b11ad2 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* | Be (somewhat more) consistent about the value of piEdward Welbourne2017-06-201-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use M_PI (and friends), where possible, in favor of hand-coded approximations of various (in)accuracies. Where that's not available (e.g. fragment shaders), use the same value that qmath.h uses for M_PI, for consistency. Replaced math.h with qmath.h in places that defined a fall-back in case math.h omits it (it's not in the C++ standard, although M_PI is in POSIX); or removed this entirely where it wasn't used. Reworked some code to reduce the amount of arithmetic needed, in the process; e.g. pulling common factors out of loops. Revised an example's doc to not waste time talking about using a six-sig-fig value for pi (which we no longer do) - it really wasn't relevant, or anything to be proud of; nor did the doc mention its later use. Task-number: QTBUG-58083 Change-Id: I5a31e3a2b6a823b97a43209bed61a37b9aa6c05f Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* | Add support for custom texture format in QOpenGLWidgetLaszlo Agocs2017-02-262-0/+8
|/ | | | | | | | | | | | | | ...in order to support sRGB framebuffers. Add a --srgb option to the qopenglwidget example to allow testing. [ChangeLog][QtWidgets][QOpenGLWidget] Added support for specifying custom internal texture formats in QOpenGLWidget in order to make it possible to have the widget backed by an sRGB-capable framebuffer. Task-number: QTBUG-50987 Change-Id: I112e2f0ab0b1478c69e601031aa0bafaa87fa847 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* examples: Use QOverload to select overloaded signals and slotsAlexander Volkov2016-12-221-8/+3
| | | | | | | | | | | We can use QOverload since Qt 5.7 (it depends on Q_COMPILER_VARIADIC_TEMPLATES which is required since Qt 5.7). Use it in the examples to show the best practice. qOverload currently can't be used because it requires c++14. Change-Id: I94a3c0db9d551fe169fa3d19c07ec0b329d5946c Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io> Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
* Examples: Replace 'Q_DECL_OVERRIDE' by 'override'hjk2016-06-151-3/+3
| | | | | | | | Examples should demonstrate best practice, and we can use the keyword directly nowadays. Change-Id: I1f122e5caceca17290757ffbaf3d660e7daa9ae4 Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
* Unify license header usage.Jani Heikkinen2016-03-297-21/+91
| | | | | | | | | Update files using old header.LGPL3 to header.LGPL Update files using old FDL template to use new one Update files using old BSD template to use new one Change-Id: I36a78272516f9953d02956522f285b40adfc8915 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
* Doc: Replaced Trolltech logo with Qt logoNico Vertriest2016-02-031-0/+0
| | | | | | Task-number: QTBUG-37505 Change-Id: If59039b2f7e60ffea3e8c7803d38e528acf35383 Reviewed-by: Martin Smith <martin.smith@theqtcompany.com>
* Port examples/opengl to new connection syntax.Friedemann Kleint2015-09-021-21/+16
| | | | | Change-Id: I486a4a2326bf57ec5ea08bccdcef79c3e5553db5 Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
* Clip QOpenGLWidget and QQuickWidget correctlyLaszlo Agocs2015-06-013-7/+21
| | | | | | | | | | | | | Introduce support for the widgets' clipRect(). Right now render-to-texture widgets in scroll areas placed close to each other result in broken (non-existent) clipping. Similarly, stack-on-top widgets fail to clip when placed inside a scroll area. This is now corrected and the qopenglwidget example is enhanced to utilize a scroll area. Task-number: QTBUG-45860 Change-Id: I859a63d61a50d64ba9e87244f83c5969dce12337 Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>
* Updated BSD licensed file headersJani Heikkinen2015-02-157-21/+21
| | | | | Change-Id: I6441ff931dbd33b698d762e6f6784898f3f60fe7 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
* Update copyright headersJani Heikkinen2015-02-117-35/+35
| | | | | | | | | | | | | | | | | | 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>
* Make qopenglwidget example functional without timers tooLaszlo Agocs2014-09-303-1/+34
| | | | | Change-Id: I6a89eaf794202c45a5ad3152d304e46041704730 Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
* Use QMenuBar::addMenu in the qopenglwidget exampleLaszlo Agocs2014-08-251-6/+3
| | | | | | | | | | Like in all other places. This way the resulting QMenu is correctly parented so it will show up at the proper position even on platforms which do not have a way to position top-level windows. Task-number: QTBUG-29025 Change-Id: I2aa6fe73699379029c44a3f379366a2133753190 Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
* Modernize the OpenGL examplesLaszlo Agocs2014-08-125-245/+325
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change them to use QOpenGLWidget and QOpenGLTexture. Advocate also the usage of VBOs. Hopeless examples, that rely on the fixed pipeline and will not compile or work in ES and dynamic builds, are moved to a "legacy" directory. The documentation pages for these are removed. This long due change avoids the confusion newcomers experience when trying to get started with Qt 5 and OpenGL. hellowindow's behavior is changed to open a single window only by default. The old default behavior, that opened three windows on platforms that supported both MultipleWindows & ThreadedOpenGL, can be requested by passing --multiple. --single is removed since it is the default now. This plays much nicer with drivers that have issues with threading. In addition, say hello to hellogl2. This is the old hellogl example updated to use QOpenGLWidget and OpenGL 2. It also has a mainwindow with multiple (un)dockable widgets containing the OpenGL widgets. This helps testing the behavior when the top-level of the QOpenGLWidget changes and provides a very important example of how to do proper resource management in this case. (must use aboutToBeDestroyed() of the context, since the context goes away and is replaced by a new one on every dock/undock) As a bonus, the logo is now real 3D, no more orthographic nonsense. Launch with --multisample to request 4x MSAA. Launch with --coreprofile to request 3.2 Core. In this particular example the shaders are present in both versions and there is a VAO so the application is functional with core profile contexts. Change-Id: Id780a80cb0708ef164cc172450ed74050f065596 Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
* Make QOpenGLWidget publicLaszlo Agocs2014-08-0110-0/+1106
QOpenGLWidget is now public. In addition Qt::WA_AlwaysStackOnTop is introduced to support the special case of semi-transparent QOpenGLWidget or QQuickWidget on top of regular widgets. hellogl_es2 becomes the qopenglwidget example. This example performs painting both via QPainter and native GL commands and has the OpenGL widget combined with other, normal widgets. The widget stack receives some changes when it comes to renderToTexture widgets like QQuickWidget and QOpenGLWidget. Calling update() will now result in a paint event, which is essential for QOpenGLWidget since we want it to behave like a regular widget. The dirty region handling is extended specially for such widgets due to performance reasons. (an OpenGL content update must not result in any backingstore painting, and is thus handled as a different kind of dirtiness) [ChangeLog] Added QOpenGLWidget. This widget serves as a replacement for QGLWidget. Task-number: QTBUG-36899 Task-number: QTBUG-40086 Change-Id: Ibf7f82fea99b39edfffd2fc088e7e0eadbca25cf Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
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