[Openal] ALubyte* -> ALchar*

[dpeacock at creativelabs.com]

Hi,

This was one of the (unfortunate) changes between AL 1.0 and AL 1.1 that
was made in a noble attempt to give Open AL 'normal' string types.

For code that I've written that need to *compile* and *run* on both AL 1.0
and AL 1.1 headers and libraries respectively I do the following :-

Add the following lines ...

#ifndef ALchar
#define ALchar char
#endif

#ifndef ALCchar
#define ALCchar char
#endif

Create a function table containing just the AL 1.0 functions (you cannot
use any AL 1.1 exclusive functions if your application needs to run on AL
1.0 libraries, so having the function table look-up prevents this from
happening).
Define the (AL 1.0) function types in the AL 1.1 way (e.g using AL[C]char's
instead of AL[C]ubytes).

You can then use AL[C]char types for all your strings.   I can send you
some example code that does all the above if you like.

Dan

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             Benjamin Grauer                                               
             <bensch at orxonox.e                                             
             thz.ch>                                                    To 
             Sent by:                  openal at opensource.creative.com      
             openal-admin at open                                          cc 
             source.creative.c                                             
             om                                                    Subject 
                                       [Openal] ALubyte* -> ALchar*        
                                                                           
             12/02/2005 09:05                                              
             AM                                                            
                                                                           
                                                                           
                                                                           




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Hi there

i have a little problem due to variable versions in our development
teams openAL-implementations

The error is, that some implementation use  alcOpenDevice differently:

old versions use
alcOpenDevice(ALCubyte*)
newer versions
alcOpenDevice(ALchar*)

is there a way to make it compile on old AND new versions??


thanks in advance for any hints on this
greets
    Benjamin

here is the code-snippet, that hat the error:

-
------------------------------------------------------------------------------------------------

  ALubyte deviceName[] =
#ifdef __WIN32__
      "native";
#else
      "'( ( devices '( native arts null ) ) )";
#endif
  //
  this->device = alcOpenDevice(deviceName);

  this->context = alcCreateContext(this->device, NULL);

  alcMakeContextCurrent(this->context);
-
---------------------------------------------------------------------------------------------------


- --
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