Bug 6083

Hi Gary.

I'm not an expert, but I think a clear distinction needs to be made for GLX and EGL.
GLX is OpenGL only (NOT OpenGL ES):
http://en.wikipedia.org/wiki/GLX
and while Vivante does on paper support OpenGL:
http://www.vivantecorp.com/index.php/en/technology/3d.html
it is not actually supported by headers (and probably will never be), see bug #5098.

(In reply to comment #0)
> 
> The X11 server happy reports that it is using the Vivante libraries,
> but I think there are problems.  In particular, I see this message
> in the log (complete log attached):
> [ 53044.383] (EE) AIGLX error: vivante exports no extensions
> (/usr/lib/dri/vivante_dri.so: undefined symbol: __driDriverExtensions)
> [ 53044.383] (EE) AIGLX: reverting to software rendering

This is normal, as AIGLX relies on GLX so in turn on OpenGL:
http://en.wikipedia.org/wiki/AIGLX

> 
> Then there are these messages which don't make much sense:
> [ 53044.493] (II) GLX: Initialized DRISWRAST GL provider for screen 0

This talks about GLX and "SWRAST GL" which probably means "OpenGL software rasterizer", which make sense, as Vivante does not officially support GLX / OpenGL.

> [ 53044.495] (II) VIVANTE(0): Setting screen physical size to 211 x 127
> (my physical screen is 800x480)

Don't know why, but nothing GLX / OpenGL related here.

> 
> Finally, when I run Google chrome, I get a slew of EGL related errors:
> [2136:2136:0327/105115:ERROR:gl_surface_glx.cc(742)] glXChooseFBConfig
> failed.
> [2136:2136:0327/105115:ERROR:gpu_info_collector.cc(27)]
> gfx::GLContext::CreateOffscreenGLSurface failed
> [2113:2131:0327/105117:ERROR:browser_process_resource_provider.cc(52)] Not
> implemented reached in
> task_manager::BrowserProcessResource::BrowserProcessResource()
> [     1] libGAL: Performing a software resolve!
> [2136:2136:0327/105117:ERROR:buffer_manager.cc(313)]
> [.Compositor-0x3b7c34f8]GL ERROR :GL_INVALID_ENUM : glBufferData: <- error
> from previous GL command
> [2203:2203:0327/105117:ERROR:gl_surface_glx.cc(742)] glXChooseFBConfig
> failed.
> [2203:2203:0327/105117:ERROR:gpu_info_collector.cc(27)]
> gfx::GLContext::CreateOffscreenGLSurface failed
> [     1] libGAL: Performing a software resolve!
> [2203:2203:0327/105117:ERROR:buffer_manager.cc(313)]
> [.Compositor-0x39e5a998]GL ERROR :GL_INVALID_ENUM : glBufferData: <- error
> from previous GL command
> [2214:2214:0327/105117:ERROR:gl_surface_glx.cc(742)] glXChooseFBConfig
> failed.
> [2214:2214:0327/105117:ERROR:gpu_info_collector.cc(27)]
> gfx::GLContext::CreateOffscreenGLSurface failed
> [     1] libGAL: Performing a software resolve!
> [2214:2214:0327/105118:ERROR:buffer_manager.cc(313)]
> [.Compositor-0x3b835a30]GL ERROR :GL_INVALID_ENUM : glBufferData: <- error
> from previous GL command
> 

I see lots of GLX calls, but no EGL call. As per above the it all makes sense considering GLX / OpenGL are not supported (at least not officially).

> and the chrome://gpu/ page indicates that hardware acceleration
> is *not* available.

I think that would only work in case Chromium supported EGL calls / OpenGL ES acceleration. I think that support will probably come now that Chromium devs are targetting Wayland support.

Regarding Chromium it looks like it has already some support for EGL:
http://code.google.com/p/chromium/issues/detail?id=90464

However, that is not related to tha main topic of this bug.

Gary, did you try to build glmark2 and run glmark2-es2?

Dora works fine in X11.

Hello Gary, can you please set this to VERIFIED if it's working now?

Thank you!

This is very old and we've been using X11 for a while. Closing it.