[Openal] xfi issues

[Daniel PEACOCK]

Hi Xavier,

Thanks for the post ... this appears to be a driver bug in the alGetSourcei
AL_BUFFER code which we will fix.  FYI ... the 4096 value is used
internally to indicate an invalid buffer id, but of course, it shouldn't
ever be returned to the application (and you shouldn't try to unqueue it).

Thanks,

Dan
Creative Labs, Inc.

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             Xavier Bouchoux                                               
             <xavier at nadeo.com                                             
             >                                                          To 
             Sent by:                  openal at opensource.creative.com      
             openal-bounces at op                                          cc 
             ensource.creative                                             
             .com                                                  Subject 
                                       Re: [Openal] xfi issues             
                                                                           
             08/28/2007 05:10                                              
             AM                                                            
                                                                           
                                                                           
                                                                           





> oups. the buffer for the source has changed to some buffer I've never
> created.
> Is this excepted? can the buffer be changed at any time?
> If so, should I just ignore the buffer I didn't create, or should I
> delete it when I delete the source?
>

just to make sure it wasn't something special I was doing somewhere else
in the code (efx, preallocing sources, ...)
I modified the simple "PlayStatic.cpp" example:

@@ -59,6 +59,10 @@
             // Attach Source to Buffer
             alSourcei( uiSource, AL_BUFFER, uiBuffer );

+            ALint iCurBuffer;
+            alGetSourcei(uiSource, AL_BUFFER, &iCurBuffer);
+            ALFWprintf("before, buf = %d\n", iCurBuffer);
+
             // Play Source
      alSourcePlay( uiSource );
             ALFWprintf("Playing Source ");
@@ -72,6 +76,9 @@
             } while (iState == AL_PLAYING);

             ALFWprintf("\n");
+
+            alGetSourcei(uiSource, AL_BUFFER, &iCurBuffer);
+            ALFWprintf("after, buf = %d\n", iCurBuffer);

             // Clean up by deleting Source(s) and Buffer(s)
             alSourceStop(uiSource);


And I do reproduce the same issue,
before = 1,  after = 4096

(whereas if on the same machine I chose "generic software", before and
after have the same values)


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