Hi guys,
I have some problems with using the eglMakeCurrent.
There is the embeded device which is based on the IMX6x and uses the QNX as OS and OpengGLES2.0&EGL1.4.
I'm trying to use opengl in the multi-thread application, so I have multiple threads that render to the same surface/context.
Each thread at the beginning of its work with EGL context calls the eglMakeCurrent function and passing the eglContext, eglSurface (for both read/write)
and at the end of work it calls the eglMakeCurrent( mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT ).
In this way I have a context that is active only for one thread.
But as a result I have a lot of color artifacts on the screen.
For experiment I've created a single-threaded application and simple make few context switches:
eglMakeCurrent( mEglDisplay, mEglSurface, mEglSurface, mEglContext )
--
some opengl operations
--
eglMakeCurrent( mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT )
eglMakeCurrent( mEglDisplay, mEglSurface, mEglSurface, mEglContext )
--
some opengl operations
--
eglMakeCurrent( mEglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT )
As result I got similar problem - a lot of color artifacts on the screen.
Has anyone faced a similar problem? Can somebody help me?
Thanks in advance, Vyacheslav.
