[Mesa-dev] decoupling XCB from Mesa

Jerome Glisse j.glisse at gmail.com
Wed Mar 23 08:17:06 PDT 2011

On Fri, Mar 18, 2011 at 7:17 AM, Srini <srini_rajini at yahoo.com> wrote:
> Hi all,
>   I am trying to port mesa for a windowing platform called CDI one like
> XCB,X11. i am successful to all EGL Calls except eglSwapBuffers. so my gles
> application cause segmentation fault when delegating the final rendered
> scene to native platform.
> I managed to port the entire flow of EGL calls by looking out the reference
> from gles application running on X11 window. but when coming to
> eglSwapBuffers it is the whole thing handled by the calls
> "xcb_dri2_copy_region_unchecked" of XCB library for what i am not getting
> source code to look out.
> could any one please advice me where from the final gles rendered buffer,
> has to be taken in Mesa context in egl_dri2.c file meaning before giving to
> XCB?
> could any one please tel me where can i get the source code of xcb-dri
> extensions. i understand from the build system of libxcb-1.5, the souce code
> for this extensions are managed by some python script (if i understand
> correct!).
> i am seriously blocked in this could anyone please help.
> Thanks in Advance.
> REgards,
> Srini.
Looking at xcb_dri2_copy_region_unchecked source would do you no good.
It's platform specific code, it just tell your window managing system
(what ever it's) to swap between the back & front buffer.


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