[Mesa-dev] [PATCH 3/6] glxinfo: Notify user if direct rendering or hardware acceleration is not available.

[Brian Paul]

I agree.  I'd rather not see glxinfo and glxgears cluttered with this 
kind of output.

I suspect the motivation here is to help diagnose end-user GL issues. 
  If so, I think it would be better to have a program designed for 
that purpose.  Such a program could set LIBGL_DEBUG=verbose, query DRI 
info, etc. to report extra information.  Even a simple shell script 
that wraps glxinfo could do this and emit the diagnostic info in a 
concise format.

-Brian

On 11/23/2011 04:24 AM, Jose Fonseca wrote:
> Determining software rendering by the string is unreliable.
>
> And the glXIsDirect just duplicates information listed before.
>
> Furthermore, printing these warnings to stdout would be a very bad idea -- scripts which run glxinfo and parse could easily get confused by these messages.
>
> Overall, I really don't see the benefit of doing any of this.
>
> Jose
>
> ----- Original Message -----
>> From: Matthias Hopf<mhopf at suse.de>
>>
>> ---
>>   src/xdemos/glxinfo.c |    5 +++++
>>   1 files changed, 5 insertions(+), 0 deletions(-)
>>
>> diff --git a/src/xdemos/glxinfo.c b/src/xdemos/glxinfo.c
>> index fe2f68b..df0c516 100644
>> --- a/src/xdemos/glxinfo.c
>> +++ b/src/xdemos/glxinfo.c
>> @@ -646,6 +646,11 @@ print_screen_info(Display *dpy, int scrnum, Bool
>> allowDirect, Bool limits, Bool
>>         fprintf(stderr, "Error: glXMakeCurrent failed\n");
>>      }
>>
>> +   if (! glXIsDirect(dpy, ctx))
>> +      printf ("\n***\n*** WARNING: Direct Rendering is NOT
>> enabled\n***\n\n");
>> +   else if (strcasestr ((char *) glGetString(GL_RENDERER),
>> "software"))
>> +      printf ("\n***\n*** WARNING: Hardware acceleration is NOT
>> active\n***\n\n");
>> +
>>      glXDestroyContext(dpy, ctx);
>>      XFree(visinfo);
>>      XDestroyWindow(dpy, win);
>> --
>> 1.7.7
>>
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