[Openal] openAL float extension

[Anish Chandak]

Ya. When I earlier in my program enquire all openAL and ALC extensions that
are available. Below is what i get.

OpenAL extensions :: EAX EAX2.0 EAX3.0 EAX4.0 EAX5.0 EAX3.0EMULATED
EAX4.0EMULATED AL_EXT_OFFSET AL_EXT_LINEAR_DISTANCEANCE

ALC version: 1.1
ALC extensions :: ALC_ENUMERATION_EXT ALC_EXT_CAPTURE ALC_EXT_EFX

I was curious because the extension page
http://www.openal.org/extensions.html listes " AL_EXT_FLOAT32" as one of the
available extensions. I was wondering if I need to check out code from the
repository if it has the latest version or something.

Thanks
Anish

On 5/3/07, Daniel PEACOCK <dpeacock at creativelabs.com> wrote:
>
> 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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> [image: Inactive hide details for "Anish Chandak" <achandak at gmail.com>]"Anish
> Chandak" <achandak at gmail.com>
>
>
>
>     *"Anish Chandak" <achandak at gmail.com>*
>             Sent by: openal-bounces at opensource.creative.com
>
>             05/03/2007 03:08 PM
>
>
> To
>
> "Jason Daly" <jdaly at ist.ucf.edu>
> cc
>
> openal at opensource.creative.com
> Subject
>
> Re: [Openal] openAL float extension
> 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*<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* <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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