Mercurial > sdl-ios-xcode
view src/audio/mint/SDL_mintaudio_gsxb.h @ 997:3bf4103b2b89
Date: Sat, 27 Nov 2004 13:35:43 +0100
From: "Martin Bickel"
Subject: [SDL] Patch: fixing uninitilized palette
while running Valgrind over my application I found the following
problem in SDL:
The function MapNto1 allocates SDL_Color colors[256] but does not
initialize it.
SDL_DitherColors is then called which initialized the r, g and b
component, but not the 'unused' component of each color.
When Map1to1 is called from MapNto1, it runs a memcmp on the colors,
which also evaluates the unused component and therefor returns
differences much more often than necessary.
So the 'unused' component of SDL_Color should be initialized. This
patch does this by calling memset for the whole array in MapNto1 .
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 30 Nov 2004 14:28:20 +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 */