[Openal] openAL float extension

[Daniel PEACOCK]

Hi Anish,

As far as I'm aware, none of the Creative Windows OpenAL devices support
this extension I'm afraid.   This is an extension for playing back samples
in a floating point format, right ?   If so, then I think you will have to
convert the data from float to short integers before passing it to AL.

Dan

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             "Anish Chandak"                                               
             <achandak at gmail.c                                             
             om>                                                        To 
             Sent by:                  "Jason Daly" <jdaly at ist.ucf.edu>    
             openal-bounces at op                                          cc 
             ensource.creative         openal at opensource.creative.com      
             .com                                                  Subject 
                                       Re: [Openal] openAL float extension 
                                                                           
             05/03/2007 03:08                                              
             PM                                                            
                                                                           
                                                                           
                                                                           




Below is the code I am testing to check for the extension. I am using
OpenAL 1.1 SK for windows from http://www.openal.org/downloads.html

    floatext = alIsExtensionPresent("AL_EXT_FLOAT32");
    if(floatext == AL_TRUE)
        printf("AL_EXT_FLOAT32 extension available: Good for you!!\n");
    else
        printf("AL_EXT_FLOAT32 extension NOT available: Bad for you!!\n");

Thanks
Anish


On 5/3/07, Jason Daly <jdaly at ist.ucf.edu> wrote:
  Anish Chandak wrote:
  > Hello guys,
  >
  > I want to use float32 extension (AL_EXT_FLOAT32) in my project. But
  > the openAL SDK that I have does not have that extension. Any pointers
  > on what do I need to do to get these extension? I am working on
  > windows platform.

  Which SDK are you using?  Are you sure the extension isn't supported?
  (It won't necessarily show up in the header files, you have query for it
  using alIsExtensionPresent() ).

  If your OpenAL implementation doesn't support the extension, you have
  little recourse other than using a different implementation (or you can
  try implementing the extension yourself).

  It's also possible that AL_EXT_FLOAT32 is just a notional extension.
  That is, it might have been proposed as a good idea for future work, but
  not yet implemented.

  --"J"

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