Cannot make qopenglcontext current in a different thread

x2 but i found a solution. it requires modifying the source code, and is not truely running from a secondary thread. The thing is, only calls made to QWidget to paint the plot requires to me made from the Gui thread. other processing can be made in different thread. So here is the mod based on the beta release of v2.0:Jul 01, 2019 · Cannot make QOpenGLContext current in a different thread QObject: Timers cannot be stopped from another thread. 原因. 测试了一下发现->show()函数也存在中断。原因如下: QOpenGLContext 类要求只能再一个线程中使用。即初始化和使用需要在一个线程里面。 The reason is that the relevant GL context must be current (or be made current) for GL resources to be removed, but the context is likely to be in a different thread. The application programmer thus has control over the life-cycle of the GL resources, and has the option to keep the QGLTexture2D object around with its attached image in heap ...The ~s (Set Current Thread) command (WinDbg only) The Processes and Threads window. Freezing and Suspending Threads. The debugger can change the execution of a thread by suspending the thread or by freezing the thread. These two actions have somewhat different effects. Each thread has a suspend count that is associated with it. If this count is ...This function was introduced in Qt 6.0. See also endFrame(), initialize(), sync(), render(), QQuickGraphicsDevice, and QQuickRenderTarget. [since 6.0] void QQuickRenderControl:: endFrame Specifies the end of a graphics frame. Calls to sync() or render() must be enclosed by calls to beginFrame() and endFrame().. When this function is called, any graphics commands enqueued by the scenegraph are ...两个原因,一是 Qt5据说是支持单线程 的,我先前觉得Qt4太旧了,选择了几个Qt5的版本,好不容易编译成功了,最后使用的时候遇到线程的问题"Cannot make QOpenGLContext current in a different thread.",始终没找到解决方法,放弃了。二是Qt4.6(好像是的)以前的版本需要 ...Creating a thread. There are two ways to create a thread in java. First one is by extending the Thread class and second one is by implementing the Runnable interface. Let's see the examples of creating a thread.That did appear to be a bug in gcc 7.1.0's optimisations. I didn't find the precise flag that was broken but it wasn't Ryzen-specific as -march=bdver4 -mno-fma4 -mno-tbm -mno-xop -mno-lwp didn't work either. It also didn't result in a segfault, just a test failure. gcc 6.3.0 and 6.4.0 were fine.but i found a solution. it requires modifying the source code, and is not truely running from a secondary thread. The thing is, only calls made to QWidget to paint the plot requires to me made from the Gui thread. other processing can be made in different thread. So here is the mod based on the beta release of v2.0:C++ QOpenGLContext::create使用的例子?那麽恭喜您, 這裏精選的方法代碼示例或許可以為您提供幫助。. 您也可以進一步了解該方法所在 類QOpenGLContext 的用法示例。. 在下文中一共展示了 QOpenGLContext::create方法 的20個代碼示例,這些例子默認根據受歡迎程度排序。. 您 ...One common reason for icons not to show up, is running examples in an IDE which uses the project root as the current working directory. This is a minor issue before the app is packaged, but once it's installed it will be started with it's current working directory as the root / folder -- your app won't be able to find anything.问题描述: Cannot make QOpenGLContext current in a different thread 解决思路: 在主线程中将qt窗体中的QOpenglContext moveToThread到窗体线程中,这样窗体线程在执行makecurrent时就不会报错。moveToThread必须在QOpenglContext原来所在的线程中执行,否则会失败,提示以上问题信息。以下工...Give feedback to Atlassian; Help. Jira Core help; Keyboard Shortcuts; About Jira; Jira Credits; Log InAnother solution is to define the data as the state of some object and the operations as member functions. Warning: Beware of data races: If one thread can access non-local data (or data passed by reference) while another thread executes the callee, we can have a data race. Every pointer or reference to mutable data is a potential data race.This branch removes the dependency on the deprecated QtOpenGL module by changing the main viewport to use the newer QOpenGLWidget from the QtGUI module instead of the old QGLWidget. Additionally, it changes the way the Qt libraries are linked with CMake by using the provided imported targets, instead of the deprecated QT5_USE_MODULES. Also, the external depedencies are now built as static ...I have used the example code.I have attached code.Yeah I am building OpenThreads with QT in cmake. Yes I am using in single threaded mode since "Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" ".The thread // where old GL context was current has no longer current context to render to and // we cannot make new GL context current in this thread. // We workaround above problems by deferring execution of problematic event requests.Prepares rendering the Qt Quick scene outside the GUI thread. targetThread specifies the thread on which synchronization and rendering will happen. There is no need to call this function in a single threaded scenario. void QQuickRenderControl:: render () Renders the scenegraph using the current context.Oct 26, 2018 · Cannot make QOpenGLContext current in a different thread Aborted (核心已转储) ×注:直接启动可执行文件或通过IDE直接debug时不报错,生成界面闪退. 解决方案:初始化时将OSG线程设置为单线程模式,添加如下代码 Cannot make QOpenGLContext current in a different thread [1] 25132 abort (core dumped) m64py. The text was updated successfully, but these errors were encountered: Copy link Member gen2brain commented Jun 2, 2015. What is your OS, graphic card and Qt version? Also, you are using old mupen64plus, which version of m64py you use?The Executors helper class contains several methods for the creation of preconfigured thread pool instances. Those classes are a good place to start. We can use them if we don't need to apply any custom fine-tuning. We use the Executor and ExecutorService interfaces to work with different thread pool implementations in Java. Usually, we should keep our code decoupled from the actual ...*linux-4.4 bisected: kwin5 stuck on kde5 loading screen with radeon @ 2016-01-15 10:34 Vlastimil Babka 2016-01-15 12:26 ` Ville Syrjälä 0 siblings, 1 reply; 33+ messages in thread From: Vlastimil Babka @ 2016-01-15 10:34 UTC (permalink / raw) To: Alex Deucher, Christian König, Ville Syrjälä, Daniel Vetter, mgraesslin Cc: David Airlie, dri-devel, LKML, Mario Kleiner, kwin Hi, since kernel ...Online sandbox report for YoiTV_1.0.0.1.exe, tagged as #evasion, verdict: Malicious activity In modern versions of Qt, GLEW is not needed, and QOpenGLFunctions is a structure which will grant access to OpenGL ES 2.0 API. (We will be doing this briefly.) You do not need to subclass to access the functionality of QOpenGLFunctions, if you'd rather, you may grab the available functions via QOpenGLContext. This may be instantiated as a ...Here glw_ is my GLVideoWidget. I have set autoBufferSwap to false so I call swapBuffers explicitely. All this worked fine before in Qt4.8, but now I get "Cannot make QOpenGLContext current in a different thread" and a segfault. Why? If I try to add context()->moveToThread(glt_); to my GLVideoWidget I get a segfault immediately.Cannot make QOpenGLContext current in a different thread 我们还是等待官方修复吧 PS.Qt6的多媒体模块仍然存在不少坑,请小伙伴们注意测试下If the rendering is happening on a different thread, then the job will happen on the rendering thread. If stage is NoStage, job will be run at the earliest opportunity whenever the render thread is not busy rendering a frame. If there is no OpenGL context available or the window is not exposed at the time the job is either posted or handled, it ...Cannot make QOpenGLContext current in a different thread QObject: Timers cannot be stopped from another thread 原因 测试了一下发现->show ()函数也存在中断。 原因如下: QOpenGLContext 类要求只能再一个线程中使用。 即 初始化 和 使用 需要在一个线程里面。 myThread在 构造函数 中初始化,而在run函数中使用。 在主线程new(初始化),run函数中使用。 不在一个线程,即报错。 修改位置 修改思路:将gl初始化放入run里面/gl作为局部变量 wantToBeM 关注 0 0 1 专栏目录Annotated Class List. Qt classes with brief descriptions: Abstract class that provides an API to initialize and access a COM object. Abstract model that can be subclassed to create one-dimensional list models. Base class for proxy item models that can do sorting, filtering or other data processing tasks.Make the main GL context (the one returned from glContext()) current on the main view surface. void glContextDoneCurrent Releases the main GL context. GLInfo getGLInformation const Returns the information about the GL context, this does not require the context to be active.Jun 23, 2020 · If you want to use it as a modal dialog, it should be launched from // another window, or have a parent and used with the QWidget::windowModality property. // If you make it modal, the dialog will prevent other top-level windows in the application // from getting any input. We refer to a top-level window that has a parent as a secondary window. The current context seems will not return the correct opengl version For Windows 8 run on VMWare with Mesa Driver 7.14.1.5025 OpenGL 2.1(Callium 0.4 on SVGA 3D Build Release with 130, 2.1 mesa 8.1-devel (git-48a3d4e)) , it return the glversion 2.0 instead of 2.1I have used the example code.I have attached code.Yeah I am building OpenThreads with QT in cmake. Yes I am using in single threaded mode since "Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" ".Given current storage costs (0.06 EUR/GB) this costs less than 1 EUR which is less than a cup of coffee where I live. And remember KWin will need less storage. The bare kde-window-manager package in Debian is just around 10 MB. I understand that people care about the dependencies and think this is important.QOpenGLContext can be moved to a different thread with moveToThread().Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.I have used the example code.I have attached code.Yeah I am building OpenThreads with QT in cmake. Yes I am using in single threaded mode since "Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" ".Created attachment 1583412 trace of plasmashell segmentation fault in Plasma 5.15.5 on Wayland with Qt 5.12.4 Description of problem: I saw segmentation faults of plasmashell in wl_proxy_set_queue at wayland-client.c:2094 in libwayland-client in Plasma 5.15.5 on Wayland with Qt 5.12.4 in Fedora 30. These crashes occurred on startup of one session, and once in another session. To use the OpenGL paint engine on a window, you need to create a QOpenGLContext and a QWindow with an OpenGL surface. You then make the OpenGL context current with the window as the target surface, create a QOpenGLPaintDevice and open a QPainter on it. QML scene graph. The QML scene graph is a new back-end for QML in Qt 5, and is based on OpenGL.上述项目直接运行,会出现诸如"QOpenGLContext::swapBuffers() called with non-exposed window, behavior is undefined"的警告。 ... #if QT_VERSION >= 0x050000 // Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4 ...Qt for Embedded Linux. Since the Qt 5.0 release, Qt no longer contains its own window system (QWS) implementation. For single-process use cases, the Qt Platform Abstraction is a superior solution. Multiple graphical processes can be supported through Wayland. There are multiple platform plugins that are potentially usable on Embedded Linux ...Each thread in an OS X process has a single current OpenGL rendering context. Every time your application calls an OpenGL function, OpenGL implicitly looks up the context associated with the current thread and modifies the state or objects associated with that context. OpenGL is not reentrant.All the resources, including the native window, are created without issues and I'm able to make the QT context current on a separate thread and OpenGL rendering also produces no errors but Hello Triangle doesn't render on my window. It seems that the native WGL context and the QT context are still separate entities.Jun 23, 2020 · If you want to use it as a modal dialog, it should be launched from // another window, or have a parent and used with the QWidget::windowModality property. // If you make it modal, the dialog will prevent other top-level windows in the application // from getting any input. We refer to a top-level window that has a parent as a secondary window. Re: Log: Cannot make QOpenGLContext current in a different thread Post by wmayer » Fri Jun 12, 2020 8:28 am When saving a project then depending on user settings a thumbnail is being created.I update a QGLWidget in a separate thread. Therefore i use a QImage and a QPainter to prepare an offscreen image and then i draw this into the QGLWidget using another QPainter with method drawImage(). After some calls to this update process the app aborts with "Cannot make QOpenGLContext current in a different thread" on the terminal.Note: Other AMD GPUs may work, but have not been fully tested. • On Mac an AMD FirePro GPU on late 2013 Mac Pro 6,1, mid 2015 MacBook Pro 11,5, and late 2016 MacBook Pro 13,3, running OS X 10.9.3 'Mavericks', or later. Multi-GPU Processing. Nuke 's GPU support includes an Enable multi-GPU support option. When enabled in the preferences, GPU processing is shared between the available GPUs for ...Given current storage costs (0.06 EUR/GB) this costs less than 1 EUR which is less than a cup of coffee where I live. And remember KWin will need less storage. The bare kde-window-manager package in Debian is just around 10 MB. I understand that people care about the dependencies and think this is important.Jan 23, 2020 · Closed. "Cannot make QOpenGLContext current in a different thread" #1642. jiangzhengwenjz opened this issue on Jan 23, 2020 · 7 comments. Comments. endrift closed this in 0450995 on Jan 25, 2020. Thread Affinity QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.Thread affinity. QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context resource ...QtでのGUI実装について明るくないのですが、サーバー側から capture () を呼び、frame を取得することは、以下のようなエラーが発生し、別スレッドからは厳しいようです。. **Cannot make QOpenGLContext current in a different thread**. また、更新処理に該当する update_frame ...Cannot make QOpenGLContext current in a different thread QObject: Timers cannot be stopped from another thread 原因 测试了一下发现->show ()函数也存在中断。 原因如下: QOpenGLContext 类要求只能再一个线程中使用。 即 初始化 和 使用 需要在一个线程里面。 myThread在 构造函数 中初始化,而在run函数中使用。 在主线程new(初始化),run函数中使用。 不在一个线程,即报错。 修改位置 修改思路:将gl初始化放入run里面/gl作为局部变量 wantToBeM 关注 0 0 1 专栏目录The reason is that the relevant GL context must be current (or be made current) for GL resources to be removed, but the context is likely to be in a different thread. The application programmer thus has control over the life-cycle of the GL resources, and has the option to keep the QGLTexture2D object around with its attached image in heap ...Cannot make QOpenGLContext current in a different thread,求助该如何解决 报错token int ecs报错quot token 报错amp quot token 报错quot token isapi伪静态网站 开发者社区 > 云计算 > 问答Jan 23, 2020 · Closed. "Cannot make QOpenGLContext current in a different thread" #1642. jiangzhengwenjz opened this issue on Jan 23, 2020 · 7 comments. Comments. endrift closed this in 0450995 on Jan 25, 2020. I did not implement user inputs and only "basic" thread syncronization, which shows that it works. If you have any questions to setup the project do not hesitate to contact me. Used Qt version: 5.9.2 64 bit Used Unigine SDK version: 2.7.3 Visual Studio: 2017 with QT VS Tool Plugin Regards, Sebastian VSProjects.zipThread Affinity. QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource ...Oct 26, 2018 · Cannot make QOpenGLContext current in a different thread Aborted (核心已转储) ×注:直接启动可执行文件或通过IDE直接debug时不报错,生成界面闪退. 解决方案:初始化时将OSG线程设置为单线程模式,添加如下代码 Cannot make QOpenGLContext current in a different thread Aborted (核心已转储) ×注:直接启动可执行文件或通过IDE直接debug时不报错,生成界面闪退. 解决方案:初始化时将OSG线程设置为单线程模式,添加如下代码Stay on top of everything that's important with Gmail's new interface. Learn more about the new layout. 本文整理汇总了C++中QOpenGLContext::surface方法的典型用法代码示例。如果您正苦于以下问题:C++ QOpenGLContext::surface方法的具体用法?C++ QOpenGLContext::surface怎么用?C++ QOpenGLContext::surface使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。diffstat of debian/ for qtdeclarative-opensource-src_5.10.1-2 qtdeclarative-opensource-src_5.11.-0astra2 changelog | 44 control | 29 libqt5qml5.symbols | 2 ...Qt+OSG编译成功后,例子运行时弹出出错:Cannot make QOpenGLContext current in a different thread. BenBenDeYiZhi 学生 2017-12-20 11:13:03 Qt5.4.2+OSG3.2+vs2010+win10_X64,编译成功后,也进行了环境变量配置,能做的什么都做了,然后建了一个QtApplication,在网上复制了一段代码,出现错误 ...Jul 03, 2020 · 【openGL】 Cannot make QOpenGLContext current in a different thread 這個問題花了一些時間,在此記錄一下,希望能夠幫助大家 錯誤復現 線程裏面進行gl畫圖—>使用renderPixmap()截圖保存時。軟件閃退。 報錯: Cannot make QOpenGLContext current in a That is an extension of the Qt JSON parser but not JSON compliant, which is needed for the configure.json-to-cmake conversion script (python). * Some moc inclusions were added due to CMake's slightly different way of handling moc. With the changes the files build with qmake and cmake.Cannot make QOpenGLContext current in a different thread QObject: Timers cannot be stopped from another thread 原因 测试了一下发现->show ()函数也存在中断。 原因如下: QOpenGLContext 类要求只能再一个线程中使用。 即 初始化 和 使用 需要在一个线程里面。 myThread在 构造函数 中初始化,而在run函数中使用。 在主线程new(初始化),run函数中使用。 不在一个线程,即报错。 修改位置 修改思路:将gl初始化放入run里面/gl作为局部变量 wantToBeM 关注 0 0 1 专栏目录for reuse in the event that a thread is not ready with new data when the main thread requires it. In this way the main thread uses synchronization but does not block waiting on child threads). Nonetheless I will be spending additional time considering the implications of 17.6.5.9 [res.on.data.races] in relation to these types since exceptions ...When Qt is compiled with QT_NO_DEBUG then it will just discard the event (and possibly complain to console), but won't crash. The nature of the assert however indicates that it's kdenlive that's doing something that it should not be doing rather than a problem in Qt.Different animation speeds can be chosen dynamically to adapt the animation to the current time scale of the interesting events or processes in the simulation. Animations that need to take place in zero simulation time are supported with "holds", i.e. holding up the simulation for a certain animation time period.Thread Affinity QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.The Thread.join () Method. The join method is defined in the Thread class: public final void join () throws InterruptedException. Waits for this thread to die. When we invoke the join () method on a thread, the calling thread goes into a waiting state. It remains in a waiting state until the referenced thread terminates.If the rendering is happening on a different thread, then the job will happen on the rendering thread. If stage is NoStage, job will be run at the earliest opportunity whenever the render thread is not busy rendering a frame. If there is no OpenGL context available or the window is not exposed at the time the job is either posted or handled, it ...The legacy QtOpenGL module (classes prefixed with QGL) provides a widget called QGLWidget. QOpenGLWidget is intended to be a modern replacement for it. Therefore, especially in new applications, the general recommendation is to use QOpenGLWidget.. While the API is very similar, there is an important difference between the two: QOpenGLWidget always renders offscreen, using framebuffer objects.The value has no relevance, and is unspecified, with backends like OpenGL and Direct3D 11. With backends like Vulkan or Metal, it is the responsibility of QRhi to block whenever starting a new frame and finding the CPU is already N - 1 frames ahead of the GPU (because the command buffer submitted in frame no. current - N has not yet completed ... You can use the below command to obtain the device-specific information: udevadm monitor --environment --udev. With the command running, remove the YubiKey device from the system. I would suggest copying all of the properties that you see in the output to a text file. We'll use some of these to define your rule.Online sandbox report for YoiTV_1.0.0.1.exe, tagged as #evasion, verdict: Malicious activityDifferent animation speeds can be chosen dynamically to adapt the animation to the current time scale of the interesting events or processes in the simulation. Animations that need to take place in zero simulation time are supported with "holds", i.e. holding up the simulation for a certain animation time period. Closed. "Cannot make QOpenGLContext current in a different thread" #1642. jiangzhengwenjz opened this issue on Jan 23, 2020 · 7 comments. Comments. endrift closed this in 0450995 on Jan 25, 2020.Output: When we run the client, We will see the message "New Connection" Then the message "hello from the client"If the rendering is happening on a different thread, then the job will happen on the rendering thread. If stage is NoStage, job will be run at the earliest opportunity whenever the render thread is not busy rendering a frame. If there is no OpenGL context available or the window is not exposed at the time the job is either posted or handled, it ...The QOpenGLWidget class is a widget for rendering OpenGL graphics. QOpenGLWidget provides functionality for displaying OpenGL graphics integrated in a CopperSpice application. It is very simple to use: Make your class inherit from it and use the subclass like any other QWidget, except that you have the choice between using QPainter and standard ...Cannot make QOpenGLContext current in a different thread [1] 25132 abort (core dumped) m64py. The text was updated successfully, but these errors were encountered: Copy link Member gen2brain commented Jun 2, 2015. What is your OS, graphic card and Qt version? Also, you are using old mupen64plus, which version of m64py you use?The value has no relevance, and is unspecified, with backends like OpenGL and Direct3D 11. With backends like Vulkan or Metal, it is the responsibility of QRhi to block whenever starting a new frame and finding the CPU is already N - 1 frames ahead of the GPU (because the command buffer submitted in frame no. current - N has not yet completed ...QOpenGLContext can be moved to a different thread with moveToThread (). Do not call makeCurrent from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.Qt Creator 2.5 est sorti en version finale, avec l'intégration de plug-ins de la communauté 5; La rubrique PyQt/PySide a besoin de vous ! 0 Le développement d'applications Qt pour Linux embarqués plus facile avec Qt 4.8 Commercial SDK, un article du blog Digia traduit par Nanzilla 0; Embellis ma vidéo : effets avec les shaders, QtMultimedia et Qt Quick, un article de Gareth Stockwell ...QOpenGLContext is-a QObject (hence, it has QObject semantics when it comes to threading), and for some reason it also employs a fatal check that forbids you to call makeCurrent on it from a thread different than the thread it has affinity with ("affinity" here being the QObject concept).Each thread in an OS X process has a single current OpenGL rendering context. Every time your application calls an OpenGL function, OpenGL implicitly looks up the context associated with the current thread and modifies the state or objects associated with that context. OpenGL is not reentrant.Thread Affinity QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.Different animation speeds can be chosen dynamically to adapt the animation to the current time scale of the interesting events or processes in the simulation. Animations that need to take place in zero simulation time are supported with "holds", i.e. holding up the simulation for a certain animation time period.C++ QOpenGLContext::create使用的例子?那麽恭喜您, 這裏精選的方法代碼示例或許可以為您提供幫助。. 您也可以進一步了解該方法所在 類QOpenGLContext 的用法示例。. 在下文中一共展示了 QOpenGLContext::create方法 的20個代碼示例,這些例子默認根據受歡迎程度排序。. 您 ...1 /***** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit.Transfers data to another device using Object Push Profile (OPP) ... UnhandledException class represents an unhandled exception in a worker thread. QFuture. Represents the result of an asynchronous computation. ... Allows you to query and manipulate the current state of Qt Designer's property editor.528080. ffmpeg-debian: ffmpeg still has shlib-with-non-pic-code lintian errors. wontfix. 797963. bs1770gain: support writing Apple SoundCheck tags. confirmed, moreinfo, upstream. 797965. ffmpeg destroys gapless playback on (at least) MP3s. confirmed, fixed-upstream, upstream. QOpenGLContext can be moved to a different thread with moveToThread (). Do not call makeCurrent from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.Closed. "Cannot make QOpenGLContext current in a different thread" #1642. jiangzhengwenjz opened this issue on Jan 23, 2020 · 7 comments. Comments. endrift closed this in 0450995 on Jan 25, 2020.but i found a solution. it requires modifying the source code, and is not truely running from a secondary thread. The thing is, only calls made to QWidget to paint the plot requires to me made from the Gui thread. other processing can be made in different thread. So here is the mod based on the beta release of v2.0:With another context rendering in the same thread it showed that it's quite likely that we hit conditions where our compositing context is not current. Resulting in e.g. not rendered window decorations, effects not able to load their textures, etc. etc. These problems are hopefully solved, now. The effects API is extended by calls to make the ...Annotated Class List. Qt classes with brief descriptions: Abstract class that provides an API to initialize and access a COM object. Abstract model that can be subclassed to create one-dimensional list models. Base class for proxy item models that can do sorting, filtering or other data processing tasks.*linux-4.4 bisected: kwin5 stuck on kde5 loading screen with radeon @ 2016-01-15 10:34 Vlastimil Babka 2016-01-15 12:26 ` Ville Syrjälä 0 siblings, 1 reply; 33+ messages in thread From: Vlastimil Babka @ 2016-01-15 10:34 UTC (permalink / raw) To: Alex Deucher, Christian König, Ville Syrjälä, Daniel Vetter, mgraesslin Cc: David Airlie, dri-devel, LKML, Mario Kleiner, kwin Hi, since kernel ...1.1.3 Creating Threads in .NET. Threads in .NET are created using the class " Thread ". This class is available in the " System.Threading " namespace. To create a new thread, you need to create an instance of the Thread class and apply the Start method (available in the Thread class) on that instance.上述项目直接运行,会出现诸如"QOpenGLContext::swapBuffers() called with non-exposed window, behavior is undefined"的警告。 ... #if QT_VERSION >= 0x050000 // Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4 ...With another context rendering in the same thread it showed that it's quite likely that we hit conditions where our compositing context is not current. Resulting in e.g. not rendered window decorations, effects not able to load their textures, etc. etc. These problems are hopefully solved, now. The effects API is extended by calls to make the ...Cannot make QOpenGLContext current in a different thread [1] 25132 abort (core dumped) m64py. The text was updated successfully, but these errors were encountered: Copy link Member gen2brain commented Jun 2, 2015. What is your OS, graphic card and Qt version? Also, you are using old mupen64plus, which version of m64py you use?Jul 03, 2020 · 【openGL】 Cannot make QOpenGLContext current in a different thread 這個問題花了一些時間,在此記錄一下,希望能夠幫助大家 錯誤復現 線程裏面進行gl畫圖—>使用renderPixmap()截圖保存時。軟件閃退。 報錯: Cannot make QOpenGLContext current in a The main problem is that both mplayer and mpv are displayed in a different window. I backported some code from umplayer (an old smplayer fork) which had this problem fixed for mplayer, but the code it's for Qt 4 and it crashes in Qt 5, with this message: Cannot make QOpenGLContext current in a different thread .上述项目直接运行,会出现诸如"QOpenGLContext::swapBuffers() called with non-exposed window, behavior is undefined"的警告。 ... #if QT_VERSION >= 0x050000 // Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4 ...Ticket #12902: Cannot make QOpenGLContext current in a different thread (occurred while watching live tv) noreply at mythtv. Oct 17, 2016, 5:25 AM Post #1 of 29 (2664 views) ... #12902: Cannot make QOpenGLContext current in a different thread (occurred while watching live tv) ...Microsoft Community. Ask the Microsoft Community. We're here to help! Post questions, follow discussions, share your knowledge. Learn how to get started. Choose where you want to search below. Search Search the Community. Search the community and support articles. Bing. 本文整理匯總了C++中QOpenGLContext類的典型用法代碼示例。如果您正苦於以下問題:C++ QOpenGLContext類的具體用法?C++ QOpenGLContext怎麽用?C++ QOpenGLContext使用的例子?那麽恭喜您, 這裏精選的類代碼示例或許可以為您提供幫助。// Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4that supports vertex array objects current for this function to succeed. 398: 399: Returns \c true if the OpenGL vertex array object was successfully created. 400: 401: When the return value is \c false, vertex array object support is not available. This: 402: is not an error: on systems with OpenGL 2.x or OpenGL ES 2.0 vertex array objects may ...Qt for Embedded Linux. Since the Qt 5.0 release, Qt no longer contains its own window system (QWS) implementation. For single-process use cases, the Qt Platform Abstraction is a superior solution. Multiple graphical processes can be supported through Wayland. There are multiple platform plugins that are potentially usable on Embedded Linux ...官方的Qt opengl示例有一个错误,即当您频繁调整Threaded QOpenGLWidget example top level窗口的大小时(拖动该窗口四处),它将崩溃,从而导致Cannot make QOpenGLContext current in a different thread ...Jun 03, 2011 · One of the widgets is made current in a separate thread, but is never made visible on screen. The main thread informs the uploading thread which images to upload and the uploading thread simply calls bindTexture() on each of these images and then notifies the main thread when each one has finished so it can be drawn to screen. 两个原因,一是 Qt5据说是支持单线程 的,我先前觉得Qt4太旧了,选择了几个Qt5的版本,好不容易编译成功了,最后使用的时候遇到线程的问题"Cannot make QOpenGLContext current in a different thread.",始终没找到解决方法,放弃了。二是Qt4.6(好像是的)以前的版本需要 ...The thread making the LDAP call would own the lock, as it entered the critical section. The other threads had to wait for the lock to be released to make their AD call. Since only one thread in the process' bounds can own a lock, at a time, this means the threads could only complete in a one-by-one scenario.これらのプロジェクトは警告「動作は未定義である非露光窓と呼ばれるQOpenGLContext :: swapBuffers()」として表示されます、直接実行します。 ... #if QT_VERSION >= 0x050000 // Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run ...Microsoft Community. Ask the Microsoft Community. We're here to help! Post questions, follow discussions, share your knowledge. Learn how to get started. Choose where you want to search below. Search Search the Community. Search the community and support articles. Bing. This branch removes the dependency on the deprecated QtOpenGL module by changing the main viewport to use the newer QOpenGLWidget from the QtGUI module instead of the old QGLWidget. Additionally, it changes the way the Qt libraries are linked with CMake by using the provided imported targets, instead of the deprecated QT5_USE_MODULES. Also, the external depedencies are now built as static ...Thread Affinity. QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource ...You can use the below command to obtain the device-specific information: udevadm monitor --environment --udev. With the command running, remove the YubiKey device from the system. I would suggest copying all of the properties that you see in the output to a text file. We'll use some of these to define your rule.Stay on top of everything that's important with Gmail's new interface. Learn more about the new layout. *linux-4.4 bisected: kwin5 stuck on kde5 loading screen with radeon @ 2016-01-15 10:34 Vlastimil Babka 2016-01-15 12:26 ` Ville Syrjälä 0 siblings, 1 reply; 33+ messages in thread From: Vlastimil Babka @ 2016-01-15 10:34 UTC (permalink / raw) To: Alex Deucher, Christian König, Ville Syrjälä, Daniel Vetter, mgraesslin Cc: David Airlie, dri-devel, LKML, Mario Kleiner, kwin Hi, since kernel ...All the resources, including the native window, are created without issues and I'm able to make the QT context current on a separate thread and OpenGL rendering also produces no errors but Hello Triangle doesn't render on my window. It seems that the native WGL context and the QT context are still separate entities.0: 740-741 /*!-742 \class QOpenGLFramebufferObject-743 \brief The QOpenGLFramebufferObject class encapsulates an OpenGL framebuffer object.-744 \since 5.0-745 \inmodule QtGui-746-Add a second GPU to working 15.2, ksplashqml crashes. System is 15.2 running a Ryzen3700x on an Asus x570 MB with a MSI Nvidia 1660 super GPU in pci-e slot one. Boots/runs perfectly. Will also say that there was no kde desktop just a bash and browser window that were open when I shut down to install the card.OpenGL Support in Qt5. QOpenGLContext. manually resolve OpenGL entry points by hand. This allows developers using. by that {version, profile} of OpenGL. group. As such we could potentially make the generation of these classes part. of the qtbase bootstrap process. This would require importing the OpenGL spec.I'd like to make a completely static build of Qt 4.8/5.2 under VS2012 - including static runtime libraries, and targeting Windows XP systems. This is not supported out-of-the-box by Qt, since even the static build of Qt uses the dynamically linked MSVC runtime. // Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4: osgViewer::ViewerBase::ThreadingModel threadingModel = osgViewer::ViewerBase::SingleThreaded; # else问题描述:Cannot make QOpenGLContext current in a different thread解决思路:在主线程中将qt窗体中的QOpenglContext moveToThread到窗体线程中,这样窗体线程在执行makecurrent时就不会报错。moveToThread必须在QOpenglContext原来所在的线程中执行,否则会失败,提示以上问题信息。以下工...That is an extension of the Qt JSON parser but not JSON compliant, which is needed for the configure.json-to-cmake conversion script (python). * Some moc inclusions were added due to CMake's slightly different way of handling moc. With the changes the files build with qmake and cmake.Remove VideoPlayer thread, not needed and could yield to asserts if QOpenGLContext::makeCurrent is called from another thread than the one it was created with, depending on platforms and QApplication flags being set.QOpenGLContext assumes that every OpenGL context in a Qt application has been created through QOpenGLContext and that an OpenGL context is only made current on the current thread through the QOpenGLContext API. Especially if one uses glx or egl directly to make a context current QOpenGLContext doesn't notice this and assumes that its own ...官方的Qt opengl示例有一个错误,即当您频繁调整Threaded QOpenGLWidget example top level窗口的大小时(拖动该窗口四处),它将崩溃,从而导致Cannot make QOpenGLContext current in a different thread ...VidCutter crashed with "Cannot make QOpenGLContext current in a different thread" Stuck at 66% Created 30 May, 2020 Issue #280 User Guillermocancela. VidCutter 6.0 stuck at 66% if more than 1 segment. ... Current thread 0x00007f2ac23e8080 (most recent call first): Aborted. Can't launch vidcutter (installed with snap)By default, a QObject lives in the thread in which it is created. An object's thread affinity can be queried using thread() and changed using moveToThread(). 모든 QObject는 부모와 동일한 스레드에 있어야합니다. 따라서: 관련된 두 QObject가 다른 스레드에있는 경우 setParent ()가 실패합니다.Release Notes for Nuke and Hiero 11.1v6 Release Date. 11 September 2018. Qualified Operating Systems • macOS Sierra (10.12) or macOS High Sierra (10.13) • Windows 7 or Windows 10 (64-bit) • CentOS 6 or CentOS 7 (64-bit) Note: If you intend to use floating licenses with Nuke 11.1, you'll need to upgrade the version of RLM used in the Foundry Licensing Tools (FLT) on your server.Hi, I recently had the need to build Qt for the i.MX53 platform so thought I'd document the steps I had to go through here as had to jump through a few hoops to get it to build. If anyone has had similar experiences please share as I know some of the cross compilation difficulties can be somewhat h...C++ How can i create a thread-safe QOffscreenSurface to be used by OpenGl,c++,multithreading,qt,opengl,C++,Multithreading,Qt,Opengl,I've been struggling lately when i had to change some code that i wrote a while ago to do image processing in Qt and OpenGl to support multithreading. the problem is that I want to use it to apply batches of filters on a set of images, i'm using openMP to do the ...Re: Log: Cannot make QOpenGLContext current in a different thread Post by wmayer » Fri Jun 12, 2020 8:28 am When saving a project then depending on user settings a thumbnail is being created.QOpenGLContext can be moved to a different thread with moveToThread (). Do not call makeCurrent from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.+ QWidget::render() even when the widget has not been made visible. + - [QTBUG-10907] When tabbing to a widget with focus proxy, focus will now + be given to the proxy rather than just being ignored.With another context rendering in the same thread it showed that it's quite likely that we hit conditions where our compositing context is not current. Resulting in e.g. not rendered window decorations, effects not able to load their textures, etc. etc. These problems are hopefully solved, now. The effects API is extended by calls to make the ...目的及涉及模块. 本章做一个QT结合OSG加载模型的示例,作为后续两者结合开发的一个基础,初步认知osg的调用执行流程。. 示例中涉及到的几个类,以下做简单的用途介绍(以后会经常接触到所以不做详细的讲解):. osgViewer::View:. 如其名,场景视图,用于显示 ... 入坑一:"Cannot make QOpenGLContext current in a different thread" 解决方法: 渲染qt5限制线程必须为单线程,添加代码 // 步骤三:视口设为单线程(Qt5必须) _pViewer->setThreadingModel(osgViewer::ViewerBase::SingleThreaded); 入坑二:加载.osg模型失败. 解决方法:// Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4 osgViewer::ViewerBase::ThreadingModel threadingModel = osgViewer::ViewerBase::SingleThreaded; #elseVidCutter crashed with "Cannot make QOpenGLContext current in a different thread" Stuck at 66% Created 30 May, 2020 Issue #280 User Guillermocancela. VidCutter 6.0 stuck at 66% if more than 1 segment. ... Current thread 0x00007f2ac23e8080 (most recent call first): Aborted. Can't launch vidcutter (installed with snap)Cannot make QOpenGLContext current in a different thread,求助该如何解决 报错token int ecs报错quot token 报错amp quot token 报错quot token isapi伪静态网站 开发者社区 > 云计算 > 问答入坑一:"Cannot make QOpenGLContext current in a different thread" 解决方法: 渲染qt5限制线程必须为单线程,添加代码 // 步骤三:视口设为单线程(Qt5必须) _pViewer->setThreadingModel(osgViewer::ViewerBase::SingleThreaded); 入坑二:加载.osg模型失败. 解决方法:入坑一:"Cannot make QOpenGLContext current in a different thread" 解决方法: 渲染qt5限制线程必须为单线程,添加代码 // 步骤三:视口设为单线程(Qt5必须) _pViewer->setThreadingModel(osgViewer::ViewerBase::SingleThreaded); 入坑二:加载.osg模型失败. 解决方法:diffstat of debian/ for qtdeclarative-opensource-src_5.10.1-2 qtdeclarative-opensource-src_5.11.-0astra2 changelog | 44 control | 29 libqt5qml5.symbols | 2 ...The usage of QOpenGLFunctions is not mandatory on most platforms, but it is highly recommended for applications intended to be cross-platform and future-proof. Those who find the inheritance-based approach annoying, can always get a current context's ready-to-be-used QOpenGLFunctions instance via QOpenGLContext::currentContext()->functions(). Cannot make QOpenGLContext current in a different thread (occurred while watching live tv) Peter Bennett: Bug Report - Crash minor MythTV - Video Playback 0.28.0 #12951: FFmpeg source includes non-free lena.pnm image: JYA: Bug Report - GeneralOpenGL Support in Qt5. QOpenGLContext. manually resolve OpenGL entry points by hand. This allows developers using. by that {version, profile} of OpenGL. group. As such we could potentially make the generation of these classes part. of the qtbase bootstrap process. This would require importing the OpenGL spec.QOpenGLContext can be moved to a different thread with moveToThread (). Do not call makeCurrent from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time.Jun 03, 2011 · One of the widgets is made current in a separate thread, but is never made visible on screen. The main thread informs the uploading thread which images to upload and the uploading thread simply calls bindTexture() on each of these images and then notifies the main thread when each one has finished so it can be drawn to screen. Different animation speeds can be chosen dynamically to adapt the animation to the current time scale of the interesting events or processes in the simulation. Animations that need to take place in zero simulation time are supported with "holds", i.e. holding up the simulation for a certain animation time period.【openGL】 Cannot make QOpenGLContext current in a different thread 這個問題花了一些時間,在此記錄一下,希望能夠幫助大家 錯誤復現 線程裏面進行gl畫圖—>使用renderPixmap()截圖保存時。Hi, Here is my problem, I'm trying to update the QGLWidget from an other thread. But when i try i got this warning: "QOpenGLContext::swapBuffers() called without corresponding makeCurrent()" I want to retrieve a video stream from a camera and display it on a QGLWidget. With the NVAPI, i fill one image in a GLTexture each frame. That's what i want to display.The current context seems will not return the correct opengl version For Windows 8 run on VMWare with Mesa Driver 7.14.1.5025 OpenGL 2.1(Callium 0.4 on SVGA 3D Build Release with 130, 2.1 mesa 8.1-devel (git-48a3d4e)) , it return the glversion 2.0 instead of 2.1Warning: This function is not thread-safe; the current thread must be same as the current thread affinity. In other words, this function can only "push" an object from the current thread to another thread, it cannot "pull" an object from any arbitrary thread to the current thread. See also thread(). QObject * QObject:: parent constOne common reason for icons not to show up, is running examples in an IDE which uses the project root as the current working directory. This is a minor issue before the app is packaged, but once it's installed it will be started with it's current working directory as the root / folder -- your app won't be able to find anything.This function was introduced in Qt 6.0. See also endFrame(), initialize(), sync(), render(), QQuickGraphicsDevice, and QQuickRenderTarget. [since 6.0] void QQuickRenderControl:: endFrame Specifies the end of a graphics frame. Calls to sync() or render() must be enclosed by calls to beginFrame() and endFrame().. When this function is called, any graphics commands enqueued by the scenegraph are ... The thread // where old GL context was current has no longer current context to render to and // we cannot make new GL context current in this thread. // We workaround above problems by deferring execution of problematic event requests.本文整理汇总了C++中QOpenGLContext类的典型用法代码示例。如果您正苦于以下问题:C++ QOpenGLContext类的具体用法?C++ QOpenGLContext怎么用?C++ QOpenGLContext使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。-// Qt 5.5 does not support setting the devicePixelRatio of a QGLFramebufferObject, 2451-// So here we make a sub class just so that we can return the correct ratio when: 2452-// using the buffer on a retina display. 2453-class NightModeGraphicsEffectFbo : public QGLFramebufferObject: 2454 +class StelGraphicsScene : public QGraphicsScene: 2455 ... 问题描述: Cannot make QOpenGLContext current in a different thread 解决思路: 在主线程中将qt窗体中的QOpenglContext moveToThread到窗体线程中,这样窗体线程在执行makecurrent时就不会报错。moveToThread必须在QOpenglContext原来所在的线程中执行,否则会失败,提示以上问题信息 ...This function was introduced in Qt 6.0. See also endFrame(), initialize(), sync(), render(), QQuickGraphicsDevice, and QQuickRenderTarget. [since 6.0] void QQuickRenderControl:: endFrame Specifies the end of a graphics frame. Calls to sync() or render() must be enclosed by calls to beginFrame() and endFrame().. When this function is called, any graphics commands enqueued by the scenegraph are ...【openGL】 Cannot make QOpenGLContext current in a different thread 這個問題花了一些時間,在此記錄一下,希望能夠幫助大家 錯誤復現 線程裏面進行gl畫圖—>使用renderPixmap()截圖保存時。軟件閃退。 報錯: Cannot make QOpenGLContext current in aThe value has no relevance, and is unspecified, with backends like OpenGL and Direct3D 11. With backends like Vulkan or Metal, it is the responsibility of QRhi to block whenever starting a new frame and finding the CPU is already N - 1 frames ahead of the GPU (because the command buffer submitted in frame no. current - N has not yet completed ... Microsoft Community. Ask the Microsoft Community. We're here to help! Post questions, follow discussions, share your knowledge. Learn how to get started. Choose where you want to search below. Search Search the Community. Search the community and support articles. Bing. 本文整理汇总了C++中QOpenGLContext类的典型用法代码示例。如果您正苦于以下问题:C++ QOpenGLContext类的具体用法?C++ QOpenGLContext怎么用?C++ QOpenGLContext使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。Threads do not share the data, and one thread cannot modify the data local to a different thread. ASP.NET, after selecting a thread to execute an incoming request, stores a reference to the current request context in the thread's local storage. Now, no matter where the thread goes while executing (a business object, a data access object), the ...官方的Qt opengl示例有一个错误,即当您频繁调整Threaded QOpenGLWidget example top level窗口的大小时(拖动该窗口四处),它将崩溃,从而导致Cannot make QOpenGLContext current in a different thread ...+ QWidget::render() even when the widget has not been made visible. + - [QTBUG-10907] When tabbing to a widget with focus proxy, focus will now + be given to the proxy rather than just being ignored.Commit message ()Author Age Files Lines * Do not run tst_qcolumnview in parallel: Friedemann Kleint: 2014-03-19: 1-1 / +0: Task-number: QTBUG-36395 Change-Id ...QOpenGLContext is-a QObject (hence, it has QObject semantics when it comes to threading), and for some reason it also employs a fatal check that forbids you to call makeCurrent on it from a thread different than the thread it has affinity with ("affinity" here being the QObject concept).0: 257}-258-259 /*!-260 \class QOpenGLContext-261 \inmodule QtGui-262 \since 5.0-263 \brief The QOpenGLContext class represents a native OpenGL context, enabling-264: OpenGL rende本文整理汇总了C++中QOpenGLContext::d_func方法的典型用法代码示例。如果您正苦于以下问题:C++ QOpenGLContext::d_func方法的具体用法?C++ QOpenGLContext::d_func怎么用?Nov 25, 2013 · Task.Delay acts in a very different way than Thread.Sleep. Basically, Task.Delay will create a task which will complete after a time delay. Task.Delay is not blocking the calling thread so the UI will remain responsive. Behind the scenes there is a timer ticking until the specified time. Since the timer controls the delay, we can cancel the ... Jul 26, 2019 · I did not implement user inputs and only "basic" thread syncronization, which shows that it works. If you have any questions to setup the project do not hesitate to contact me. Used Qt version: 5.9.2 64 bit Used Unigine SDK version: 2.7.3 Visual Studio: 2017 with QT VS Tool Plugin Regards, Sebastian VSProjects.zip If, every time you get a request that you think someone else should handle, you helpfully forward it to the right person, or otherwise help solve it, then this tends to lead to getting more and more of these emails. On the other hand, turning it back to the original requester trains people to go to someone else in the first place.*linux-4.4 bisected: kwin5 stuck on kde5 loading screen with radeon @ 2016-01-15 10:34 Vlastimil Babka 2016-01-15 12:26 ` Ville Syrjälä 0 siblings, 1 reply; 33+ messages in thread From: Vlastimil Babka @ 2016-01-15 10:34 UTC (permalink / raw) To: Alex Deucher, Christian König, Ville Syrjälä, Daniel Vetter, mgraesslin Cc: David Airlie, dri-devel, LKML, Mario Kleiner, kwin Hi, since kernel ...Dear Guillaume, thanks for clearing things up a bit. More answers below. On Mo, 12.01.2015, 03:04, Guillaume Chereau wrote: > Hello Georg, happy new year everyone! > > > Currently we still need QtDeclarative as it is the only way -that I am > aware of- to embed QWidgets into an opengl view.Note: Other AMD GPUs may work, but have not been fully tested. • On Mac an AMD FirePro GPU on late 2013 Mac Pro 6,1, mid 2015 MacBook Pro 11,5, and late 2016 MacBook Pro 13,3, running OS X 10.9.3 'Mavericks', or later. Multi-GPU Processing. Nuke 's GPU support includes an Enable multi-GPU support option. When enabled in the preferences, GPU processing is shared between the available GPUs for ...The simplest way is not to use a different context for each window. But that isn't an option if the windows may be on different physical displays, or if you need to render from multiple threads concurrently. If you need to use multiple contexts, then create a copy of the VAO for each context.Qt Creator 2.5 est sorti en version finale, avec l'intégration de plug-ins de la communauté 5; La rubrique PyQt/PySide a besoin de vous ! 0 Le développement d'applications Qt pour Linux embarqués plus facile avec Qt 4.8 Commercial SDK, un article du blog Digia traduit par Nanzilla 0; Embellis ma vidéo : effets avec les shaders, QtMultimedia et Qt Quick, un article de Gareth Stockwell ...The ~s (Set Current Thread) command (WinDbg only) The Processes and Threads window. Freezing and Suspending Threads. The debugger can change the execution of a thread by suspending the thread or by freezing the thread. These two actions have somewhat different effects. Each thread has a suspend count that is associated with it. If this count is ...Online sandbox report for YoiTV_1.0.0.1.exe, tagged as #evasion, verdict: Malicious activityInput port 0 of algorithm vtkImageThreshold(0x55914d19d860) has 0 connections but is not optional. QObject::startTimer: Timers cannot be started from another thread QObject::killTimer: Timers cannot be stopped from another thread Cannot make QOpenGLContext current in a different threadAdd a second GPU to working 15.2, ksplashqml crashes. System is 15.2 running a Ryzen3700x on an Asus x570 MB with a MSI Nvidia 1660 super GPU in pci-e slot one. Boots/runs perfectly. Will also say that there was no kde desktop just a bash and browser window that were open when I shut down to install the card.c++ 多线程 多线程是多任务处理的一种特殊形式,多任务处理允许让电脑同时运行两个或两个以上的程序。一般情况下,两种类型的多任务处理:基于进程和基于线程。 基于进程的多任务处理是程序的并发执行。基于线程的多任务处理是同一程序的片段的并发执行。\section1 Thread affinity -127-128: QOpenGLContext can be moved to a different thread with moveToThread(). Do -129: not call makeCurrent() from a different thread than the one to which the -130: QOpenGLContext object belongs. A context can only be current in one thread -131: and against one surface at a time, and a thread only has one context -132but i found a solution. it requires modifying the source code, and is not truely running from a secondary thread. The thing is, only calls made to QWidget to paint the plot requires to me made from the Gui thread. other processing can be made in different thread. So here is the mod based on the beta release of v2.0:Do not call makeCurrent () from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource Sharing Resources such as textures and vertex buffer objects can be shared between contexts.+ QWidget::render() even when the widget has not been made visible. + - [QTBUG-10907] When tabbing to a widget with focus proxy, focus will now + be given to the proxy rather than just being ignored.1 /***** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit.My question is about how to make the secondary QOpenGLContext "current" in the thread. Because QOpenGLContext::makeCurrent() takes a mandatory QSurface as parameter, and the only surface I have is the one that is available from my QOpenGLWidget , but using that in the secondary thread does not work.Qt出现QObject::connect: Cannot queue arguments of type '******'的解决方法. 一般出现这种情况都是自定义的类型进行型号槽连接的时候出现的,使用. 假设自定义的类型是MyClass. 使用qRegisterMetaType<MyClass> ("MyClass");注册之后就可以正常的进行信号和槽连接. 标签: Qt.but i found a solution. it requires modifying the source code, and is not truely running from a secondary thread. The thing is, only calls made to QWidget to paint the plot requires to me made from the Gui thread. other processing can be made in different thread. So here is the mod based on the beta release of v2.0:两个原因,一是 Qt5据说是支持单线程 的,我先前觉得Qt4太旧了,选择了几个Qt5的版本,好不容易编译成功了,最后使用的时候遇到线程的问题"Cannot make QOpenGLContext current in a different thread.",始终没找到解决方法,放弃了。二是Qt4.6(好像是的)以前的版本需要 ...You can use the below command to obtain the device-specific information: udevadm monitor --environment --udev. With the command running, remove the YubiKey device from the system. I would suggest copying all of the properties that you see in the output to a text file. We'll use some of these to define your rule.I have used the example code.I have attached code.Yeah I am building OpenThreads with QT in cmake. Yes I am using in single threaded mode since "Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" ".Do not call makeCurrent () from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource Sharing Resources such as textures and vertex buffer objects can be shared between contexts.It doesn't work on 5.0.1 because glWidget->makeCurrent() function in GLPainter::start() leads to the assertion "Cannot make QOpenGLContext current in a different thread" and crash. I added string context()->moveToThread(&glThread); to GLWidget::startRendering() before calling connect and this almost fixed the demo - it works stable if only one ...Oct 26, 2018 · Cannot make QOpenGLContext current in a different thread Aborted (核心已转储) ×注:直接启动可执行文件或通过IDE直接debug时不报错,生成界面闪退. 解决方案:初始化时将OSG线程设置为单线程模式,添加如下代码 // Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4 osgViewer::ViewerBase::ThreadingModel threadingModel = osgViewer::ViewerBase::SingleThreaded; #elseWhen Qt is compiled with QT_NO_DEBUG then it will just discard the event (and possibly complain to console), but won't crash. The nature of the assert however indicates that it's kdenlive that's doing something that it should not be doing rather than a problem in Qt.\section1 Thread affinity -127-128: QOpenGLContext can be moved to a different thread with moveToThread(). Do -129: not call makeCurrent() from a different thread than the one to which the -130: QOpenGLContext object belongs. A context can only be current in one thread -131: and against one surface at a time, and a thread only has one context -132The QOpenGLWidget class is a widget for rendering OpenGL graphics. QOpenGLWidget provides functionality for displaying OpenGL graphics integrated in a CopperSpice application. It is very simple to use: Make your class inherit from it and use the subclass like any other QWidget, except that you have the choice between using QPainter and standard ...// Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run multi-threaded, this is regression from Qt4. 简单的说就是qt5版本的时候不能允许多线程,所以讲线程设置为单线程就可以了Nov 26, 2013 · QOpenGLContext assumes that every OpenGL context in a Qt application has been created through QOpenGLContext and that an OpenGL context is only made current on the current thread through the QOpenGLContext API. Especially if one uses glx or egl directly to make a context current QOpenGLContext doesn’t notice this and assumes that its own ... Add a second GPU to working 15.2, ksplashqml crashes. System is 15.2 running a Ryzen3700x on an Asus x570 MB with a MSI Nvidia 1660 super GPU in pci-e slot one. Boots/runs perfectly. Will also say that there was no kde desktop just a bash and browser window that were open when I shut down to install the card.MSDN says : "A rendering context can be current to only one thread at a time. You cannot make a rendering context current to multiple threads." This isn't precise enough for my tastes. What happens if I try to make current a rendering context that is still current to another thread? Will the call fail and the "new" thread won't have a GL context? Or will the call succeed, ie the ...I did not implement user inputs and only "basic" thread syncronization, which shows that it works. If you have any questions to setup the project do not hesitate to contact me. Used Qt version: 5.9.2 64 bit Used Unigine SDK version: 2.7.3 Visual Studio: 2017 with QT VS Tool Plugin Regards, Sebastian VSProjects.zippackage info (click to toggle) qtbase-opensource-src 5.15.3%2Bdfsg-1. links: PTS, VCS area: main; in suites: experimental官方的Qt opengl示例有一个错误,即当您频繁调整Threaded QOpenGLWidget example top level窗口的大小时(拖动该窗口四处),它将崩溃,从而导致Cannot make QOpenGLContext current in a different thread ...これらのプロジェクトは警告「動作は未定義である非露光窓と呼ばれるQOpenGLContext :: swapBuffers()」として表示されます、直接実行します。 ... #if QT_VERSION >= 0x050000 // Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" when the viewer is run ...When loading and unloading a Qt3D scene using a loader a crash is triggered sporatically (race condition): "Cannot make QOpenGLContext current in a different thread."I have used the example code.I have attached code.Yeah I am building OpenThreads with QT in cmake. Yes I am using in single threaded mode since "Qt5 is currently crashing and reporting "Cannot make QOpenGLContext current in a different thread" ".Apr 22, 2016 · QGLContext in Qt 5 is a small wrapper around QOpenGLContext; QOpenGLContext is-a QObject (hence, it has QObject semantics when it comes to threading), and for some reason it also employs a fatal check that forbids you to call makeCurrent on it from a thread different than the thread it has affinity with ("affinity" here being the QObject concept). Jul 01, 2019 · Cannot make QOpenGLContext current in a different thread QObject: Timers cannot be stopped from another thread. 原因. 测试了一下发现->show()函数也存在中断。原因如下: QOpenGLContext 类要求只能再一个线程中使用。即初始化和使用需要在一个线程里面。 QObject::~QObject: Timers cannot be stopped from another thread. 然后我的应用程序立即崩溃。 我知道任何 QObject包含 QTimer在内部,这就是导致问题的原因,但我想不出任何其他方法来解决这个问题。 有人能帮忙吗?Thread Affinity. QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource ...QOpenGLContext assumes that every OpenGL context in a Qt application has been created through QOpenGLContext and that an OpenGL context is only made current on the current thread through the QOpenGLContext API. Especially if one uses glx or egl directly to make a context current QOpenGLContext doesn't notice this and assumes that its own ...Cannot make QOpenGLContext current in a different thread,求助该如何解决 报错token int ecs报错quot token 报错amp quot token 报错quot token isapi伪静态网站 开发者社区 > 云计算 > 问答convert_ARGB_PM_to_ARGB(…) and another 6% are spent in blend_transformed_tiled_argb…. although the system just shows a simple screen ... KDE from 4.10.0 till current version (4.10.2). High CPU load in simple and screensaver mode. But widgets mode works fine. ... Both show the main thread in the event loop. Which means we don't see anything.Thread Affinity. QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource ...528080. ffmpeg-debian: ffmpeg still has shlib-with-non-pic-code lintian errors. wontfix. 797963. bs1770gain: support writing Apple SoundCheck tags. confirmed, moreinfo, upstream. 797965. ffmpeg destroys gapless playback on (at least) MP3s. confirmed, fixed-upstream, upstream. My question is about how to make the secondary QOpenGLContext "current" in the thread. Because QOpenGLContext::makeCurrent() takes a mandatory QSurface as parameter, and the only surface I have is the one that is available from my QOpenGLWidget , but using that in the secondary thread does not work.Remove VideoPlayer thread, not needed and could yield to asserts if QOpenGLContext::makeCurrent is called from another thread than the one it was created with, depending on platforms and QApplication flags being set.Application works when creating QFrameBufferObject also in gui thread. See comment line from main.cpp. Doesn't work on Qt 5.1.1 at all. Displays error:"Cannot make QOpenGLContext current in a different thread".入坑一:"Cannot make QOpenGLContext current in a different thread" 解决方法: 渲染qt5限制线程必须为单线程,添加代码 // 步骤三:视口设为单线程(Qt5必须) _pViewer->setThreadingModel(osgViewer::ViewerBase::SingleThreaded); 入坑二:加载.osg模型失败. 解决方法:1.1.3 Creating Threads in .NET. Threads in .NET are created using the class " Thread ". This class is available in the " System.Threading " namespace. To create a new thread, you need to create an instance of the Thread class and apply the Start method (available in the Thread class) on that instance.Online sandbox report for YoiTV_1.0.0.1.exe, tagged as #evasion, verdict: Malicious activityCannot make QOpenGLContext current in a different thread Aborted (核心已转储) ×注:直接启动可执行文件或通过IDE直接debug时不报错,生成界面闪退. 解决方案:初始化时将OSG线程设置为单线程模式,添加如下代码Prepares rendering the Qt Quick scene outside the GUI thread. targetThread specifies the thread on which synchronization and rendering will happen. There is no need to call this function in a single threaded scenario. void QQuickRenderControl:: render () Renders the scenegraph using the current context.F libvideosink-test_arm64-v8a.so: Cannot make QOpenGLContext current in a different thread F libc : Fatal signal 6 (SIGABRT), code -6 in tid 28846 (qtMainLoopThrea)Jun 03, 2011 · One of the widgets is made current in a separate thread, but is never made visible on screen. The main thread informs the uploading thread which images to upload and the uploading thread simply calls bindTexture() on each of these images and then notifies the main thread when each one has finished so it can be drawn to screen. One common reason for icons not to show up, is running examples in an IDE which uses the project root as the current working directory. This is a minor issue before the app is packaged, but once it's installed it will be started with it's current working directory as the root / folder -- your app won't be able to find anything.Do not call makeCurrent () from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource Sharing Resources such as textures and vertex buffer objects can be shared between contexts.Add a second GPU to working 15.2, ksplashqml crashes. System is 15.2 running a Ryzen3700x on an Asus x570 MB with a MSI Nvidia 1660 super GPU in pci-e slot one. Boots/runs perfectly. Will also say that there was no kde desktop just a bash and browser window that were open when I shut down to install the card.Online sandbox report for YoiTV_1.0.0.1.exe, tagged as #evasion, verdict: Malicious activity+ QWidget::render() even when the widget has not been made visible. + - [QTBUG-10907] When tabbing to a widget with focus proxy, focus will now + be given to the proxy rather than just being ignored.Thread Affinity. QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource ...package info (click to toggle) qtbase-opensource-src-gles 5.15.3%2Bdfsg-1. links: PTS, VCS area: main; in suites: experimentalI'd like to make a completely static build of Qt 4.8/5.2 under VS2012 - including static runtime libraries, and targeting Windows XP systems. This is not supported out-of-the-box by Qt, since even the static build of Qt uses the dynamically linked MSVC runtime. 两个原因,一是 Qt5据说是支持单线程 的,我先前觉得Qt4太旧了,选择了几个Qt5的版本,好不容易编译成功了,最后使用的时候遇到线程的问题"Cannot make QOpenGLContext current in a different thread.",始终没找到解决方法,放弃了。二是Qt4.6(好像是的)以前的版本需要 ...Generated on 2019-Aug-01 from project qtbase revision v5.13.-1335-gd914a5ba4e Powered by Code Browser 2.1 Generator usage only permitted with license. Code Browser 2.1 Generator usage only permitted with license.Thx for the optimization advices, just the theme is a bit different. My app is more "editor" than "game". For example, user opens a next .fbx file and the app should load and draw all file data, I can't show a message like "Stop, it's too much data for me".入坑一:"Cannot make QOpenGLContext current in a different thread" 解决方法: 渲染qt5限制线程必须为单线程,添加代码 // 步骤三:视口设为单线程(Qt5必须) _pViewer->setThreadingModel(osgViewer::ViewerBase::SingleThreaded); 入坑二:加载.osg模型失败. 解决方法:The usage of QOpenGLFunctions is not mandatory on most platforms, but it is highly recommended for applications intended to be cross-platform and future-proof. Those who find the inheritance-based approach annoying, can always get a current context's ready-to-be-used QOpenGLFunctions instance via QOpenGLContext::currentContext()->functions().package info (click to toggle) qtbase-opensource-src-gles 5.15.3%2Bdfsg-1. links: PTS, VCS area: main; in suites: experimentalThe simplest way is not to use a different context for each window. But that isn't an option if the windows may be on different physical displays, or if you need to render from multiple threads concurrently. If you need to use multiple contexts, then create a copy of the VAO for each [email protected]: @karab44 Have you added import multiprocessing; multiprocessing.freeze_support(); at the beginning of your main script (you wrap by PyInstaller)?The Thread.join () Method. The join method is defined in the Thread class: public final void join () throws InterruptedException. Waits for this thread to die. When we invoke the join () method on a thread, the calling thread goes into a waiting state. It remains in a waiting state until the referenced thread terminates.Thread Affinity. QOpenGLContext can be moved to a different thread with moveToThread(). Do not call makeCurrent() from a different thread than the one to which the QOpenGLContext object belongs. A context can only be current in one thread and against one surface at a time, and a thread only has one context current at a time. Context Resource ...