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* Backport texture sharing for NVIDIAPaul Olav Tvete2019-08-135-0/+1255
| | | | | | | | | | | | | | | | | | | | | | | | | This commit backports the Vulkan server buffer and texture sharing code from Qt 5.14 to Qt 5.12 as an opt-in feature. To enable, configure with "-feature-wayland-client-texture-sharing-experimental -feature-wayland-compositor-texture-sharing-experimental" Contains code from the following commits: Add server buffer integration based on Vulkan (commit df3a1761af2f20d59ae09a7adaa2f5b959047687) Compressed texture support for vulkan server buffers (commit f710489a341713c675cfd91d22ccd7bf8f29f4dd) Implement server-side toOpenGlTexture for Vulkan (commit 19361e7259f04b08925b1e8e99faf9460770ee7b) New texture sharing protocol and infrastructure (commit 80001cbf0451f4ba2a971fb20b80dc8e25ac604d) Change-Id: I6c36ef7fddcd4db39e80d03a822d89f15eae3434 Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Compositor: Call eglUnbindWaylandDisplayWL when destroying the compositorJohan Klokkhammer Helsing2019-03-141-0/+8
| | | | | | | | | | | | | | | If unbind is not called, some drivers may try to do cleanup that depends on a valid wl_display in eglTerminate. Arguably, this could/should also have been fixed in the affected drivers. There is a display_destroy signal that the driver should listen to, to avoid using dangling wl_display and wl_global pointers. However, by using eglUnbindWaylandDisplayWL we can force the cleanup to happen before wl_display_destroy. Which is what this patch does. Change-Id: Id9062de896b723838bcecac3902031e6b172a6de Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io> Reviewed-by: Pier Luigi Fiorini <pierluigi.fiorini@liri.io>
* wl_eglstream_controller implementation for NVIDIAPaul Olav Tvete2019-01-085-0/+690
| | | | | | | | | | | | | | This adds a new client buffer integration: wayland-eglstream-controller, which contains the EGLStream logic from wayland-egl, and additionally uses NVIDIA's wayland-eglstream-controller protocol to avoid the issue where the stream is not ready at the time of first buffer attach. This is not enabled by default. Can be used like this: QT_WAYLAND_CLIENT_BUFFER_INTEGRATION=wayland-eglstream-controller ./pure-qml Fixes: QTBUG-71697 Change-Id: I73bb2a8fe9852afe1b5807cbb8c35dc4c7624dad Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Add server buffer integration using Linux dma-bufPaul Olav Tvete2018-09-213-0/+426
| | | | | | Fixes: QTBUG-70494 Change-Id: Iaa4990fe9d39a1f9fb81f5e5f19039aa2e52dcac Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Add virtual QtWayland::ServerBuffer::bufferInUse()Paul Olav Tvete2018-09-214-0/+11
| | | | | | | | This allows the compositor to reclaim unused graphics memory when a buffer is no longer used by clients. Change-Id: Ia0269608019c5120da8c091c81e165411b563554 Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Don't use members of wl_resourceJohan Klokkhammer Helsing2018-09-181-1/+1
| | | | | | | | | When we switch to only including core wayland headers, wl_resource will be an opaque type. Use the getters and setter functions instead. Task-number: QTBUG-70553 Change-Id: I7d84d48a4ee3586f231a331cd15716686dcee775 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Compositor API: Don't leak OpenGL textures when running multi-threadedJohan Klokkhammer Helsing2018-04-271-2/+15
| | | | | | | | | | | | | | | | If a client destroyed buffers, they would not get deleted because the event would be handled on the GUI thread without a valid OpenGL context. I.e: you would see the following output: QOpenGLTexturePrivate::destroy() called without a current context. Texture has not been destroyed Work around it by keeping a list of buffers that have been orphaned and delete them whenever we have a valid OpenGL context. Change-Id: I31c7c4cff179bd68cd954714b2a8e3e2a74675b2 Reviewed-by: Dominik Holland <dominik.holland@pelagicore.com> Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Use override when applicableJohan Klokkhammer Helsing2018-02-284-8/+8
| | | | | | | | | | Applied automatic fixes using clang-tidy's modernize-use-override. This adds the "override" keyword where it's possible and also removes the "virtual" keyword when redundant. Change-Id: I899950e5cf8782785d30a245a9c69c1720905d50 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Use default member initialization for raw pointersJohan Klokkhammer Helsing2018-02-287-9/+9
| | | | | | | | Initialize to nullptr to prevent undefined behavior. Change-Id: I7753c0be77a886d62ecb1cd7b86fc8c98340b0b8 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io> Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
* Init variables where they are declared when possible (clang-tidy)Johan Klokkhammer Helsing2018-02-2713-66/+31
| | | | | | | | | | | | | | | | | | | | clang-tidy -p compile_commands.json $file \ -checks='-*,modernize-use-default-member-init,readability-redundant-member-init' \ -config='{CheckOptions: [{key: modernize-use-default-member-init.UseAssignment, value: "1"}]}' \ -header-filter='qtwayland' \ -fix Afterwards I ran search and replace on the diff to clean up some whitespace errors: - Replaced '(\n\+[^:\n]*)(:\s+\+\s+)' with '$1: ' - Replaced '(\n\+[^,\n]*)(,\s+\+\s+)' with '$1, ' - Replaced '\n\+\s*\n' with '\n' I also had to do some manual edits, because for some reason, this particular clang-tidy check doesn't trigger for some files. Change-Id: I3b3909bac4bf20108bbe8ad1e01bcc54236dae1b Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
* Use nullptr instead of 0 or NULLJohan Klokkhammer Helsing2018-02-204-12/+12
| | | | | | | | Applied automatic fixes using clang-tidy's modernize-use-nullptr, and some manual cleanup to prevent QFlag macros to be affected. Change-Id: I88f94390185bc6e6f23693b68723cd5710815ae6 Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
* Compositor API: Add support for hardware compositingJohan Klokkhammer Helsing2018-02-093-0/+388
| | | | | | | | | | [ChangeLog][Compositor] Add a tech preview for a plugin-based hardware layer API and a VSP2 implementation (for Renesas R-Car M3 and H3). Task-number: QTBUG-64600 Task-number: QTBUG-64604 Change-Id: Ia4abfb6343cf4f006ba408d293ec9464cd6f31b7 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Fix compilation for Renesas R-Car M3Johan Klokkhammer Helsing2018-02-081-1/+1
| | | | | Change-Id: Ib85001884bb880a18d8aa1241da0eb614a6b58ba Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Merge remote-tracking branch 'qt/5.10' into devPaul Olav Tvete2018-01-313-2/+32
|\ | | | | | | Change-Id: I603cbb164e6015c1bb7796bd8bb055d84dbc3b04
| * Merge remote-tracking branch 'origin/5.9' into 5.10Liang Qi2018-01-073-2/+32
| |\ | | | | | | | | | | | | | | | | | | | | | Conflicts: .qmake.conf src/compositor/compositor_api/qwaylandquickitem.cpp Change-Id: Id2f49e8703a67daedcee66db83f006df828d9da0
| | * Fix for big memory leak in Qt based compositorsRobert Griebl2017-12-192-1/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | The system would leak a complete buffer every time the client attached a new Wayland buffer. For QML applications this will normally happen every time a new animation is started. Change-Id: Ie4981ccbb2e09d702ee291f1144e3b8aa84c0d1d Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
| | * wayland-egl: use egl compiler optionsSamuli Piippo2017-12-041-1/+1
| | | | | | | | | | | | | | | Change-Id: I6f8dcadf3cffecc6097ad0ad5e8245831b3ce0c1 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* | | Adapt to qtbase 5.10 API change: qssize_t -> qsizetypeLiang Qi2018-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | Task-number: QTBUG-65600 Done-with: Thiago Macieira <thiago.macieira@intel.com> Change-Id: I34116dad8eecd01090596270965b9a24f6fe8f39 Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* | | Merge remote-tracking branch 'qt/5.10' into devPaul Olav Tvete2017-10-271-44/+75
|\| | | | | | | | | | | Change-Id: I4f885a551093ada07da97fd3d99902e36f98595e
| * | Merge remote-tracking branch 'qt/5.9' into 5.10v5.10.0-beta3Paul Olav Tvete2017-10-251-44/+75
| |\| | | | | | | | | | Change-Id: I6c283081669594b3e8c6b30194bb96e389319cb2
| | * Support threaded rendering for Nvidia EGLStreamsPaul Olav Tvete2017-10-251-44/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create and update the texture on the GUI thread. Make sure there is a valid context on the GUI thread: create one if necessary, and share it with the global share context. Note: this requires that threaded compositors set the Qt::AA_ShareOpenGLContexts application attribute. Task-number: QTBUG-63039 Change-Id: Ia19af0536f9df319cde84221ed53db1c2ef42293 Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* | | Use QImage::sizeInBytes() instead of deprecated QImage::byteCount()Johan Klokkhammer Helsing2017-10-191-1/+1
| | | | | | | | | | | | | | | Change-Id: If3f21fc43d0118c1819d354c8ef43f1b79617c7b Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
* | | Replace Q_NULLPTR with nullptrKevin Funk2017-09-261-1/+1
|/ / | | | | | | | | | | | | Change-Id: I9699a957430b8d3574ce29acb91b7ada9ea6209b Reviewed-by: Jan Arne Petersen <jan.petersen@kdab.com> Reviewed-by: Johan Helsing <johan.helsing@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* | shm-based server buffer for testing on desktopPaul Olav Tvete2017-08-163-0/+258
| | | | | | | | | | Change-Id: I2ea03f3366524d3133a65870abad9d9389dfec9c Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* | Update server buffer integrationPaul Olav Tvete2017-08-154-61/+76
|/ | | | | | | | | Fix crashes, and change the (private) API to be more usable. The libhybris code compiles without warnings, but is untested. Change-Id: I1433daf1ba76d7869d1dfe260642199ce5a1b849 Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Set texture size and format in WaylandEglClientBuffer::toOpenGLTextureJohan Klokkhammer Helsing2017-06-221-0/+13
| | | | | Change-Id: I26e3ac4224fb54e1d3fddeef8847f9556effe324 Reviewed-by: Giulio Camuffo <giulio.camuffo@kdab.com>
* Fix missing rename from waylandDisplay to displayJohan Klokkhammer Helsing2017-06-131-1/+1
| | | | | | | | | | QWaylandCompositor::waylandDisplay was previously renamed to display, but the libhybris implementation was not updated. Task-number: QTBUG-61183 Change-Id: I80cacb7eeef93375bebd159b676db1147914e8de Reviewed-by: Jan Arne Petersen <jan.petersen@kdab.com> Reviewed-by: Pier Luigi Fiorini <pierluigi.fiorini@liri.io>
* Fix licensingv5.9.0-beta4Jani Heikkinen2017-05-0419-228/+285
| | | | | | | | | | Currently tests are licensed under GPL-EXCEPT, examples under BSD and src under LGPL so replase old license headers with new & proper ones. Also remove old & unused license files Task-number: QTBUG-57147 Change-Id: Ia6a738798736c275dc309ccfa5b627dc2178d241 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix warning about inconsistent use of override keywordv5.9.0-beta2Thiago Macieira2017-04-043-4/+4
| | | | | | | | | qwaylandshmbackingstore_p.h:93:19: warning: 'paintDevice' overrides a member function but is not marked 'override' [-Winconsistent-missing- override Change-Id: I27b55fdf514247549455fffd14b1791d4dd6b6b3 Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Fix the wayland-egl compositing using NVIDIA graphicsDominik Holland2017-03-281-7/+19
| | | | | | Task-number: QTBUG-58299 Change-Id: I29737c62dc977de9b7301b635454315560ebb338 Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Replace all occurrences of Q_DECL_OVERRIDE with overrideJohan Klokkhammer Helsing2017-01-239-38/+38
| | | | | Change-Id: I16b7b23efe944b49d1fcc9e7588cdb0a991cebd1 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* eglstream: Return if we don't have a OpenGL contextDominik Holland2017-01-191-1/+3
| | | | | | | | Having an warning message should be enough, no need to still try to bind the texture and end in an assert. Change-Id: I6a5f297e1d2b01ca3649775be53ac28d7dcc6479 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Use the feature system internallyLars Knoll2016-11-231-2/+0
| | | | | | | | | Get rid of almost all DEFINES += ... in the pro files, instead use the proper QT_CONFIG() macro to determine whether a feature is available. Change-Id: I867769be2085c6ba93b6815e223e2b89edcb245d Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* Move qtwayland over to use the new configuration systemLars Knoll2016-11-237-43/+7
| | | | | | | | | | | | | Re-use configuration results from qtbase where possible and move all pkg-config handling over to be done at configuration time. Since waylandclient and waylandcompositor are two independent libs, this required some duplication of features and libraries used by both in the configure.json files. Change-Id: I1f3ec56c85cb780324cc7634a3ad7951125853a0 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io> Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
* use modularized platformsupport modulesv5.8.0-beta1Oswald Buddenhagen2016-10-222-1/+2
| | | | | Change-Id: I7883470e22deb089240d86df7dc2d625a107a53e Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Expose native buffer handlesPaul Olav Tvete2016-10-032-7/+7
| | | | | | | | | This is required for making accelerated compositors that do not use OpenGL. Change-Id: I76c735a971dc62344080aececc087c0495925b87 Reviewed-by: Louai Al-Khanji <louai.al-khanji@qt.io> Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* Refactor buffer handlingPaul Olav Tvete2016-10-018-269/+368
| | | | | | | | | | | | | | | | | | | | | | | | | We cannot support bindToTexture() functions. On some platforms the texture is provided by the driver. Therefore, the HW integration must always provide a texture. This has the added bonus of unifying the two separate code paths that were introduced when EGLStream support was added. Add a separate buffer manager that owns all buffers. Don't destroy buffer objects on release. The client will probably attach them again later. Also, release shm buffers immediately after uploading to texture (needs to be documented that image() will not work afterwards). Make the old SurfaceBuffer class into an abstract base class, so we can store state in the buffer class instead of having to map from the wl_resource in each buffer integration. Move the shared memory buffer handling into a separate subclass. Change-Id: I81e471d13c92913d31ea1efe487f93fa908b5e0c Reviewed-by: Dominik Holland <dominik.holland@pelagicore.com> Reviewed-by: Louai Al-Khanji <louai.al-khanji@qt.io> Reviewed-by: Johan Helsing <johan.helsing@qt.io>
* eglstream: Fixed problem when resizing a windowDominik Holland2016-06-021-4/+2
| | | | | | | | | | | | It seems we are not allowed to delete the texture when the buffer is destroyed as this breaks the following eglstream and shows a empty texture. We need to check with NVIDIA, but the deletion of the texture might be handled by wayland Change-Id: Icd20594498d83c57458f77b9e91f0980f8c2d173 Reviewed-by: Robert Griebl <robert.griebl@pelagicore.com> Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
* Fixed eglStream compositingDominik Holland2016-05-182-4/+48
| | | | | | | | | | | | | | | | | | | | | | | When creating the eglStream from the fd we also need to create the texture and call stream_consumer_gltexture. Otherwise the wayland client can't create the wayland client surface. Fixed the qwindow-compositor example to use the texture associated to the QWaylandBufferRef when compositing a EXTERNAL_OES target. QML compositing only works when QSG_RENDER_LOOP is set to basic as we need to generate a texture from the gui thread. As the texture is created by the bufferintegration it might end up in a different gl context than the quick item using it. The texture is also deleted together with the buffer, which prevents the use of the texture afterwards. Both problems need to be fixed in follow up commits. Task-number: QTBUG-50850 Change-Id: Ifec67bbe9e4b2a680c871dc4aced37b71b7b6f80 Reviewed-by: Louai Al-Khanji <louai.al-khanji@qt.io> Reviewed-by: Giulio Camuffo <giulio.camuffo@kdab.com>
* QtWaylandCompositor: Add support for different EGL buffer formatsLouai Al-Khanji2016-04-292-153/+264
| | | | | Change-Id: Idfeeedbf247fa81dccdf28a1aa04f878900ed262 Reviewed-by: Giulio Camuffo <giulio.camuffo@kdab.com>
* Adjust Raspberry Pi integration to new APIDonald Carr2016-03-233-11/+4
| | | | | | Change-Id: I7ef64e5dd5e87e62ec83fc05076a5c2e93d11638 Reviewed-by: Giulio Camuffo <giulio.camuffo@kdab.com> Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
* Proper fix for buffer destructionPaul Olav Tvete2016-02-251-5/+12
| | | | | | | | | | | | | The previous fix (93ca929fb9caf347150) would always crash on client exit. It tried use the same destroy_listener on several buffers. Due to the way linked lists are implemented in Wayland, a listener can only be listening to one signal at the time. The correct way to do this is to create a new listener for each buffer. Change-Id: Ie94dd8cd2d3dc7f93a0526c5c585a8feab3b7354 Reviewed-by: Pier Luigi Fiorini <pierluigi.fiorini@gmail.com> Reviewed-by: Louai Al-Khanji <louai.al-khanji@theqtcompany.com>
* Fix querying the buffer size on some platformsGiulio Camuffo2016-02-081-14/+14
| | | | | | | | On Mesa/Intel apparently querying a buffer's size can return bogus values if an EGLImage was not created from it yet. Change-Id: I186dcc70f64d310ef3f5e9f908267a8c28b113f2 Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
* Fix destroy listener signal connectionLaszlo Agocs2016-02-041-1/+1
| | | | | | | | Remove it from the list in the callback, not when a new buffer is created later on. Change-Id: I2328edec9728752d18efaecede19eb4527d0f578 Reviewed-by: Louai Al-Khanji <louai.al-khanji@theqtcompany.com>
* Merge remote-tracking branch 'qt/5.6' into wip-compositor-apiPaul Olav Tvete2015-12-027-12/+24
|\ | | | | | | Change-Id: Ie70fdd03e1259a8cb75bbdbf1324e3e4a2b51807
| * Get rid of the egl config test and use what qtbase providesLaszlo Agocs2015-11-115-8/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | contains(QT_CONFIG, egl) and CONFIG += egl is the only sane way to test for and pull in EGL headers and libs. This is particularly important when trying to be robust and guard against half-broken sysroots on embedded where a naive PKGCONFIG += egl breaks. Also add an EGL_WAYLAND_BUFFER_WL define to keep wayland-egl compiling. We are not testing for that in any config tests may cause a failure in sysroots that have parts of Mesa thrown in but pick ip an older EGL header from the vendor's driver. Change-Id: I7b7e6a7a91e78dbda5b6954ad08761298c538efc Reviewed-by: Giulio Camuffo <giulio.camuffo@jollamobile.com>
| * RPi: Resolve all BRCM functions dynamicallyLaszlo Agocs2015-11-112-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | Directly calling eglCreateGlobalImageBRCM and friends is not ideal due to the messy RPi distro setups: shipping Mesa (sw rasterizer only) in standard locations may cause picking up those EGL/GLES libs instead of the Broadcom ones from /opt/vc when building Qt. While this is something that should be fixed in the sysroot (since it is a problem at runtime anyway), let's make life easier by resolving via eglGetProcAddress, which is the right approach in any case. Change-Id: I73f7698b638691d97743a6f819bc7c8ee6ebd245 Reviewed-by: Giulio Camuffo <giulio.camuffo@jollamobile.com>
* | Fix crash on client exitPaul Olav Tvete2015-11-091-0/+2
| | | | | | | | | | | | | | | | | | | | Wayland linked lists are implemented by having next and prev pointers in the objects themselves. This means that an object can only be in one list at the time. If the object is not removed from a list before being inserted into another, the original list is corrupted. Change-Id: Idc6cfc507f7d7ff30a365fda01c4f9729335ae09 Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
* | Merge branch '5.6' into wip-compositor-apiLaszlo Agocs2015-10-272-29/+205
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | qwindow-compositor changes from 5.6 will be adapted separately. The traditional wayland-egl path is tested and is functional like before. The EGLStream support will be verified separately once the qwindow-compositor changes are ready. Conflicts: examples/wayland/qwindow-compositor/qwindowcompositor.cpp examples/wayland/qwindow-compositor/textureblitter.cpp examples/wayland/qwindow-compositor/textureblitter.h examples/wayland/server-buffer/client/client.pro examples/wayland/server-buffer/compositor/compositor.pro src/compositor/compositor_api/qwaylandbufferref.cpp src/compositor/compositor_api/qwaylandbufferref.h src/compositor/hardware_integration/qwlclientbufferintegration_p.h src/compositor/wayland_wrapper/qwlkeyboard.cpp src/compositor/wayland_wrapper/qwlkeyboard_p.h src/compositor/wayland_wrapper/qwlsurfacebuffer.cpp src/compositor/wayland_wrapper/qwlsurfacebuffer_p.h src/hardwareintegration/compositor/wayland-egl/waylandeglclientbufferintegration.cpp src/hardwareintegration/compositor/wayland-egl/waylandeglclientbufferintegration.h src/plugins/hardwareintegration/compositor/wayland-egl/wayland-egl.pro Change-Id: Ic2e3a6e8f74606c35b1e27cd4016fa133527d7ba
| * Support EGLStream in wayland-eglLaszlo Agocs2015-10-202-30/+248
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For Wayland on NVIDIA. Tested with a Jetson TK1 Pro and Vibrante Linux. With just the hw integration no compositors would work out of the box since EGL_KHR_stream_consumer_gltexture only allows connecting to the texture bound to GL_TEXTURE_EXTERNAL_OES, meaning that assumptions about the target always being GL_TEXTURE_2D break horribly both in C++ and in shader code. In addition, buffers have to be extended with an additional updateTexture() operation as EGLStream requires to call ConsumerAcquire on every frame. Previously there was no concept of this as calling createTexture() on attach() was sufficient. Qt Quick bits are omitted since the refactored compositor API is pretty different. This means that QML compositors will not currently function in this environment. The qwindow-compositor example is enhanced to support the external texture target, but this won't apply for the refactored branch either. It is provided for testing purposes for the time being, and to show how C++ compositors can support different texture targets and correct operation with EGLStreams. Done-with: Louai Al-Khanji <louai.al-khanji@theqtcompany.com> Change-Id: I0e209fc0cbcf435cca83528d938eb50e4bdceb82 Reviewed-by: Louai Al-Khanji <louai.al-khanji@theqtcompany.com>
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