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Date: Sun, 29 Feb 2004 15:14:22 +0200 From: Martin_Storsj Subject: Dynamic loading of ALSA I recently discovered that SDL can dynamically load ESD and aRts, and made a patch which adds this same functionality to ALSA. The update for configure.in isn't too good (it should e.g. look for libasound.so in other directories than /usr/lib), because I'm not too good at shellscripting and autoconf. The reason for using dlfcn.h and dlopen instead of SDL_LoadLibrary and SDL_LoadFunction is that libasound uses versioned symbols, and it is necessary to load the correct version using dlvsym. This isn't probably any real portability issue, because ALSA is linux-only.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 02 Mar 2004 12:49:16 +0000
parents 355632dca928
children
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<HTML
><HEAD
><TITLE
>SDL_UnlockAudio</TITLE
><META
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><H1
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>SDL_UnlockAudio</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN7156"
></A
><H2
>Name</H2
>SDL_UnlockAudio&nbsp;--&nbsp;Unlock the callback function</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN7159"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN7160"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_UnlockAudio</B
></CODE
>(void);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7166"
></A
><H2
>Description</H2
><P
>Unlocks a previous <A
HREF="sdllockaudio.html"
><TT
CLASS="FUNCTION"
>SDL_LockAudio</TT
></A
> call.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>See Also</H2
><P
><A
HREF="sdlopenaudio.html"
><TT
CLASS="FUNCTION"
>SDL_OpenAudio</TT
></A
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