Mercurial > sdl-ios-xcode
view src/audio/mint/SDL_mintaudio_gsxb.h @ 865:92615154bb68
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 | 594422ab8f9f |
| children | d910939febfa |
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/* * GSXB audio definitions * * Patrice Mandin */ #ifndef _SDL_mintaudio_gsxb_h #define _SDL_mintaudio_gsxb_h #include <mint/falcon.h> /* for trap_14_xxx macros */ /* GSXB Cookie */ #define C_GSXB 0x47535842L /* Bit 5 in cookie _SND */ #define SND_GSXB (1<<5) /* NSoundcmd modes */ #define SETRATE 7 /* Set sample rate */ #define SET8BITFORMAT 8 /* 8 bits format */ #define SET16BITFORMAT 9 /* 16 bits format */ #define SET24BITFORMAT 10 /* 24 bits format */ #define SET32BITFORMAT 11 /* 32 bits format */ #define LTATTEN_MASTER 12 /* Attenuation */ #define RTATTEN_MASTER 13 #define LTATTEN_MICIN 14 #define RTATTEN_MICIN 15 #define LTATTEN_FMGEN 16 #define RTATTEN_FMGEN 17 #define LTATTEN_LINEIN 18 #define RTATTEN_LINEIN 19 #define LTATTEN_CDIN 20 #define RTATTEN_CDIN 21 #define LTATTEN_VIDIN 22 #define RTATTEN_VIDIN 23 #define LTATTEN_AUXIN 24 #define RTATTEN_AUXIN 25 /* Setmode modes */ #define MONO16 3 #define STEREO24 4 #define STEREO32 5 #define MONO24 6 #define MONO32 7 /* Sndstatus modes */ #define SND_QUERYFORMATS 2 #define SND_QUERYMIXERS 3 #define SND_QUERYSOURCES 4 #define SND_QUERYDUPLEX 5 #define SND_QUERY8BIT 8 #define SND_QUERY16BIT 9 #define SND_QUERY24BIT 10 #define SND_QUERY32BIT 11 #define SND_FORMAT8 (1<<0) #define SND_FORMAT16 (1<<1) #define SND_FORMAT24 (1<<2) #define SND_FORMAT32 (1<<3) #define SND_FORMATSIGNED (1<<0) #define SND_FORMATUNSIGNED (1<<1) #define SND_FORMATBIGENDIAN (1<<2) #define SND_FORMATLITTLEENDIAN (1<<3) /* Devconnect prescalers */ #define CLK_44K 1 #define CLK_22K 3 #define CLK_11K 7 /* Extra xbios functions */ #define NSoundcmd(mode,data,data2) \ (long)trap_14_wwl((short)130,(short)(mode),(short)(data),(long)(data2)) #define NSetinterrupt(src_inter,cause,inth_addr) \ (long)trap_14_wwwl((short)135,(short)(src_inter),(short)(cause), \ (long)(inth_addr)) #endif /* _SDL_mintaudio_gsxb_h */