On 05/29/2013 12:56 AM, Divick Kishore wrote:
Hi Brian, thanks for your reply.On Tue, May 28, 2013 at 9:33 PM, Brian Paul <bri...@vmware.com> wrote:I took at look at eglCreateContext(). It's basically: EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list, const EGLint *attrib_list) { _EGLContext *share = _eglLookupContext(share_list, disp); ... if (!share && share_list != EGL_NO_CONTEXT) RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_CONTEXT); ... } If the error is coming from there, it means that the share_list context you're passing in isn't recognized by EGL as a valid context.I did have a look at the source but couldn't understand really why _EGLContext *share = _eglLookupContext(share_list, disp); returns a NULL value for share. Had a look a bit more deeper and I saw that the display values for both the contexts were different. I then modified my code then not to open a new display for the new context instead share the display with the older one and then everything worked like a charm.
That may be a bug in our EGL. We only allow sharing of contexts created with the same display. But I took a quick look at the EGL spec and I didn't see such a restriction. Maybe someone else can dig into that a bit more.
Thanks for your help. First step is usually the hardest step, so thank for pointing in the right direction. Another thing that I wanted to check was that I have ported some of the performance demos from mesa demos to use EGL and GLES2.0. If it is useful in general to community then how can I get the sources reviewed and commit to mesa demos repository?
You can post patches for review to the mesa-dev list. -Brian _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
