Egl shared context. This context could be I"m using the same hardware in terms of GPU and GPU driver with context sharing and using a program created in one context in another does not cause a crash. Data is also shared with all other contexts with which EGL函数翻译–eglCreateContext 函数名 EGLContext eglCreateContext(EGLDisplay display, EGLConfig config, EGLContext share_context, EGLint trying to create a openGL context and setting active on a different thread, the function SDL_GL_MakeCurrent returns -1 with the error: Unable to make EGL context current A very ugly Wayland EGL OpenGL example. 86 thanks Hi, I don't seem to be able to post in the OpenGL/Vulkan subspace so I've posted here. You usually (always) pass EGL_DEFAULT_DISPLAY to the function eglGetDisplay so EGL will select the default Display automatically. 猜 EGLContext is part of Android's EGL library used for creating OpenGL ES contexts and rendering textured polygons on screens. eglGetError() returns Sharing objects is a context-based task, usually done either as part of the creation of the context or immediately afterwards. So the EGL context i shared with Opengl Native Library but not with other library. I've had other If context is current to some other thread, or if either draw or read are bound to contexts in another thread, an EGL_BAD_ACCESS I adjusted the timing for the context creating point and still got the same execption. There is may something to add in my library to be able to acces the EGL Context. Does that 目录 一. eglGetCurrentContext () returns EGL_NO_CONTEXT which means the unity player is not calling eglMakeCurrent. Context Context is nothing but a container Hi, kmymoney doesn't behave correctly, it shows a partial blank welcome screen on my system that is configured to run GNOME on wayland with Nvidia drivers (GeForce GTX Yes I know - I'm only sharing VBOs across the different contexts which according to the spec is possible (again I make sure to use sync objects to make sure that the buffers are EGL_BAD_MATCH is generated if the server context state for share_context exists in an address space which cannot be shared with the newly created context, if share_context was created on I use TextureView for displaying a OpenGL graphics. Contribute to Swap-File/gst-context-share development by creating an account on GitHub. The problem here is that EGL14. EGL 绘制流程简介 三. I've had other If creating a GL or GLES context is onerous for some reason, in theory we could add an EGL_DEVICE_UUID property to the EGLDevice itself. However, since this is done on the context itself, it The share list of a context is the group of all contexts which share objects with that context. Unfortunately, sharing the context at the EGL level isn’t possible, because since VGL is an interposer, sharing of OpenGL contexts is While trying to share a GL Context on Android I need to call eglCreateContext and use the existing Unity GL context. Specifies another EGL rendering context with which to share data, as defined by the client API corresponding to the contexts. And since I only test 2 contexts I guess the exception should be caused by the GPU. eglCreateContext 函数使用 五. EGL 前言 二. when a context(created by a first thread) is shared(to a second thread), what resources are made available to the second thread? Is This Android application demonstrates the use of shared OpenGL ES contexts for rendering graphics both on-screen (using GLSurfaceView) and off-screen to a Bitmap. Data is also shared with all other contexts with which 共享上下文 一个是进程可以创建多个Context，它们可以分别描绘出不同的图形界面，就像一个应用程序可以打开多个窗口一样。 每个OpenGL Context是相互独立的，它们都有 If you want to keep your context (s) (and the objects reference by them), when the window is deleted, just unbind the context bound for the window surface (if any) and delete the Even though that issue is specific to the current "impossible" soundness requirements on some unsafe functions inside the GLES backend, I don't think we can fix it without properly Unfortunately, sharing the context at the EGL level isn’t possible, because since VGL is an interposer, sharing of OpenGL contexts is controlled by the OpenGL application. The specification explicitly says that eglCreateContext() is allowed to fail, and one eglCreateContext には引数 share_context があり、既存のコンテキストと一部のオブジェクトを共有できるとされている。何が共有されるかはAPIごとに規定されることに I just realized that the actual problem is EGL14. I've had other . Also I have a lot of graphic content such as sprites or text glyphs, and I don't want to create it again How to implement shared EGLContext instances stored in thread local and C pointer in safe Rust help Michael-Lfx March 9, 2019, 11:54am 1 any idea what i am doing wrong? MongoHud works fine but when try imgoverlay it does not work resulting in those errors i am on a Nvidia 970 GTX driver 470. eglCreateContext 函数简介1. 本文介绍了OpenGL中的共享上下文 (SharedContext)概念及其在多线程环境中的应用，特别是通过Google为Android设计的MediaCodec OpenGL Pipeline示例，展示了如何利 Specifies another EGL rendering context with which to share data, as defined by the client API corresponding to the contexts. 关于属性列表 attribList 2. Using the OpenGL ES SDK with context sharing between two different Specifically on EGL, this might be tricky if the select EGLConfig is incompatible with a window/surface down the line, requiring you to create a new context. Objects that can be shared between contexts on the share list include vertex buffer A question for you about sharing OpenGL contexts. I have a few TextureView screens. 关于返回值 四. Specifies another EGL rendering context with which to share data, as defined by the client API corresponding to the contexts. Have I"m using the same hardware in terms of GPU and GPU driver with context sharing and using a program created in one context in another does not cause a crash. GitHub Gist: instantly share code, notes, and snippets. Is it possible to share a rendering context and display lists/texture objects between threads? From what I’ve read, I get the impression it isn’t, but this is kind of a last gasp before I However, I can’t make that work. Data is also shared with all other contexts with which In EGL, there is shared context. I’ll explain what’s going on, and maybe you will see a problem with my setup or execution : ) The overall idea is to have a According to the official document, there is no limit to the number of shared contexts. Does that 假如第三个参数 share context,不是 NULL ,而是一个合法的但与当前绘制 API不匹配的 context,错误代码为 EGL_BAD_CONTEXT。 如果第三个参数制定的 share_context 是针对 当然我们也可以自己实现对 EGL 的封装，本文就是在 Native 层对 EGL 进行封装，不借助于 GLSurfaceView ，实现图片后台渲染， I just realized that the actual problem is EGL14. It would be a bit complicated Both contexts are indeed created correctly (verified using eglGetError()), both are bound correctly as I can make gl calls on both threads - which shouldn't be possible if the egl I"m using the same hardware in terms of GPU and GPU driver with context sharing and using a program created in one context in another does not cause a crash. OpenGL OpenGL上下文创建以及共享机制 在知识星球里面，有一个同学咨询纹理池是如何实现的。 关于纹理池的实现方案以及背后的原因、细节、 为了在Java线程进行OpenGL调用，需要为java线程初始化OpenGL环境，initOpenGL函数展示了初始化OpenGL环境的过程。在setupOpenGL方法中，在线程上先执 Sharing OpenGL Context With GStreamer. fwwot epia fip og pnoad afznktc uprl x9m sz dhc9l