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* Change the license of all CMakeLists.txt and *.cmake files to BSDLucie Gérard2022-08-231-1/+1
| | | | | | | Task-number: QTBUG-105718 Change-Id: I5d3ef70a31235868b9be6cb479b7621bf2a8ba39 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
* Add license headers to cmake filesLucie Gérard2022-08-031-0/+3
| | | | | | | | | | | | CMakeLists.txt and .cmake files of significant size (more than 2 lines according to our check in tst_license.pl) now have the copyright and license header. Existing copyright statements remain intact Task-number: QTBUG-88621 Change-Id: I3b98cdc55ead806ec81ce09af9271f9b95af97fa Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
* Fix typos in docs and commentsKai Köhne2022-06-151-2/+2
| | | | | | | | | Found by codespell Pick-to: 6.4 Change-Id: Ie3e301a23830c773a2e9aff487c702a223d246eb Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
* QOpenGLWidget: Fix a typo in the public documentationLaszlo Papp2022-05-271-1/+1
| | | | | Change-Id: I964f5c6a8901bf93e5e3a5afb33cb456217caf39 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
* Make sure the correct context is current when invoking resizeGLLaszlo Agocs2022-05-241-0/+3
| | | | | | | | | | | | | | | After the 6.4 changes for QRhi-based compositing in widgets there is now a good chance that a different context is current after recreateFbo in case it actually created a new texture and fbo. This is not great if we immediately call resizeGL() afterwards since the contract for the reimplementable functions is that the QOpenGLWidget's context is current. Make sure this contract is followed. Fixes: QTBUG-103319 Change-Id: I59a5fa9500df34b86787927e1114d0a80297678a Reviewed-by: Christian Strømme <christian.stromme@qt.io> Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* Use SPDX license identifiersLucie Gérard2022-05-163-114/+6
| | | | | | | | | | | | | 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>
* Add missing header files to the module sourcesAlexey Edelev2022-05-121-0/+1
| | | | | | | | | All module header files should be listed in the corresponding sections of modules SOURCEs to be accessible in CMake routines. Task-number: QTBUG-103196 Change-Id: Ieb77ae70557e35e546a5b00387e1e0aa40338239 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Compose render-to-texture widgets through QRhiLaszlo Agocs2022-03-111-87/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Fix deprecated uses of QScopedPointerMårten Nordheim2022-03-081-2/+2
| | | | | | | | | By changing it to unique_ptr. Pick-to: 6.2 6.3 Change-Id: I91abb69445b537d4c95983ae735341882352b29d Reviewed-by: Marc Mutz <marc.mutz@qt.io> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Migrate to autogenerated cpp exportsAlexey Edelev2021-06-252-14/+2
| | | | | | | | | Replace the hardcoded cpp exports with a generated one where it's applicable. Task-number: QTBUG-90492 Change-Id: Idc160b594987b2c765e75bd669aae851b4366282 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Document QOpenGLWidget limitations without an alpha channelLaszlo Agocs2021-01-151-0/+13
| | | | | | | Pick-to: 6.0 5.15 Task-number: QTBUG-85869 Change-Id: I20fb70a451fc1ed93089ed699539fa12ac38fe73 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* Remove the qmake project filesJoerg Bornemann2021-01-071-13/+0
| | | | | | | | | | | | | | | | Remove the qmake project files for most of Qt. Leave the qmake project files for examples, because we still test those in the CI to ensure qmake does not regress. Also leave the qmake project files for utils and other minor parts that lack CMake project files. Task-number: QTBUG-88742 Change-Id: I6cdf059e6204816f617f9624f3ea9822703f73cc Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Kai Koehne <kai.koehne@qt.io>
* Fix missing repaints with QOpenGLWidget in a QDockWidgetLaszlo Agocs2021-01-061-1/+6
| | | | | | | | | | | | | | | | | | When AA_ShareOpenGLContexts is not set, docking or undocking will lead to changing the associated top-level window. This leads to changing the OpenGL context, and tearing down and then recreating all OpenGL resources (assuming a well written application). The problem is, there are no paint events after the Show, meaning the user code's paintGL is often not invoked, which leads to showing an empty QOpenGLWidget until something else triggers a paint event. To remedy this, send a paint event upon Show, which should be harmless enough, while fixing the case of docking/undocking. Pick-to: 6.0 5.15 Fixes: QTBUG-89812 Change-Id: I3c4560f8f069d86645a6314bf7ad1b4ee8e2c716 Reviewed-by: Andy Nichols <andy.nichols@qt.io>
* Member-initialize QOpenGLWidgetPrivateVolker Hilsheimer2020-11-091-35/+18
| | | | | | | Fix warning about requestedFormat not being initialized in sequence. Change-Id: I7b948cb356b65ea2953424a700eb1a70cd1802f9 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* CMake: Regenerate projects to use new qt_internal_ APIAlexandru Croitor2020-09-231-1/+1
| | | | | | | | | | | Modify special case locations to use the new API as well. Clean up some stale .prev files that are not needed anymore. Clean up some project files that are not used anymore. Task-number: QTBUG-86815 Change-Id: I9947da921f98686023c6bb053dfcc101851276b5 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* Port from devicePixelRatioF() to devicePixelRatio()Morten Johan Sørvig2020-09-101-9/+9
| | | | | | | This ports all of QtBase. Change-Id: If6712da44d7749b97b74f4614a04fac360f69d9e Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
* Register QPlatformBackingStoreOpenGLSupport when neededTor Arne Vestbø2020-07-291-0/+3
| | | | | | | | | | | | Static builds can not rely on a constructor function in the QtOpenGL library, as that will be linked out unless something in the application pulls it in. Instead we export a helper function that clients that depend on OpenGL support in QPlatformBackingStore can use to bring it it. Change-Id: Ic54058bf413a476287884c78df5624b862f97695 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* Doc: Change docs from internal to reimpPaul Wicking2020-06-251-4/+4
| | | | | | | Pick-to: 5.15 Fixes: QTBUG-82357 Change-Id: I415ee03dd9d1ac02a435a24fb5ab94bf60c07331 Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
* Docs: Remove lenghty comparison with QGLWidgetJohan Klokkhammer Helsing2020-02-201-62/+6
| | | | | | | | | QGLWidget doesn't exist any more, and has been legacy for a long time, so we shouldn't try to explain what QOpenGLWidget is in terms of QGLWidget any more. Task-number: QTBUG-74409 Change-Id: I87ff6c35dfed1303bd6d74621b244e1ed84ceafe Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Move QOpenGLWidget from QtOpenGL to its own moduleJohan Klokkhammer Helsing2020-02-185-0/+1674
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>