Re: EGL & OpenGLES2 without X

On 05/22/2014 04:55 AM, Will Wagner wrote:
> Hello,
>
> I am hoping to use Mesa to provide EGL and OpenGLES2 without any
> dependency on X on intel hardware. I am using version 10.2.rc3.
>
> I am configuring mesa to include the gallium i915 driver, the exact
> command I use is:
>
> ./configure --disable-glx --disable-xa --disable-static --enable-opengl
> --enable-shared-glapi --with-gallium-drivers=i915 --without-dri-drivers
> --enable-gallium-egl --enable-gbm --enable-egl --with-egl-platforms=drm
> --enable-gles1 --enable-gles2
>
> This produces a couple of egl drivers - egl_gallium and egl_dri2
>
> I am able to run the es2gears example and that works correctly. However
> my application fails to run as it is unable to create a surface.
>
> Looking at the es2gears example it uses eglCreateScreenSurfaceMESA to
> create the surface whereas my application uses eglCreateWindowSurface.
>
> Also es2gears uses surface type EGL_SCREEN_BIT_MESA but I want to use
> EGL_WINDOW_BIT
>
> Is it possible to build mesa without X so that it supports the standard
> EGL calls or is there no way of doing this without using the mesa
> extension?

Well, if you don't have X you don't have windowing so there's only 
full-screen rendering.

-Brian