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annotate src/audio/mint/SDL_mintaudio_gsxb.h @ 4001:6831b8723a85 SDL-1.2

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Don't initialize the audio buffer passed to the application's audio callback, since they are expected to entirely fill it with data or silence. For legacy apps that might expect the buffer to already have silence and thus may not fill the buffer in the callback, there's an environment variable to expose the old behaviour. Fixes Bugzilla #416.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 05 Jul 2007 02:24:36 +0000
parents d910939febfa
children 782fd950bd46 a1b03ba2fcd0
rev   line source
1402
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
644
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24 /*
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25 * GSXB audio definitions
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26 *
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27 * Patrice Mandin
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28 */
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29
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30 #ifndef _SDL_mintaudio_gsxb_h
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31 #define _SDL_mintaudio_gsxb_h
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32
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33 #include <mint/falcon.h> /* for trap_14_xxx macros */
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34
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35 /* GSXB Cookie */
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36
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37 #define C_GSXB 0x47535842L
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38
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39 /* Bit 5 in cookie _SND */
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40
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41 #define SND_GSXB (1<<5)
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42
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43 /* NSoundcmd modes */
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44
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45 #define SETRATE 7 /* Set sample rate */
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46 #define SET8BITFORMAT 8 /* 8 bits format */
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47 #define SET16BITFORMAT 9 /* 16 bits format */
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48 #define SET24BITFORMAT 10 /* 24 bits format */
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49 #define SET32BITFORMAT 11 /* 32 bits format */
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50 #define LTATTEN_MASTER 12 /* Attenuation */
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51 #define RTATTEN_MASTER 13
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52 #define LTATTEN_MICIN 14
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53 #define RTATTEN_MICIN 15
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54 #define LTATTEN_FMGEN 16
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55 #define RTATTEN_FMGEN 17
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56 #define LTATTEN_LINEIN 18
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57 #define RTATTEN_LINEIN 19
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58 #define LTATTEN_CDIN 20
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59 #define RTATTEN_CDIN 21
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60 #define LTATTEN_VIDIN 22
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61 #define RTATTEN_VIDIN 23
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62 #define LTATTEN_AUXIN 24
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63 #define RTATTEN_AUXIN 25
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64
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65 /* Setmode modes */
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66
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67 #define MONO16 3
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68 #define STEREO24 4
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69 #define STEREO32 5
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70 #define MONO24 6
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71 #define MONO32 7
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72
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73 /* Sndstatus modes */
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74
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75 #define SND_QUERYFORMATS 2
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76 #define SND_QUERYMIXERS 3
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77 #define SND_QUERYSOURCES 4
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78 #define SND_QUERYDUPLEX 5
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79 #define SND_QUERY8BIT 8
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80 #define SND_QUERY16BIT 9
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81 #define SND_QUERY24BIT 10
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82 #define SND_QUERY32BIT 11
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83
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84 #define SND_FORMAT8 (1<<0)
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85 #define SND_FORMAT16 (1<<1)
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86 #define SND_FORMAT24 (1<<2)
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87 #define SND_FORMAT32 (1<<3)
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88
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89 #define SND_FORMATSIGNED (1<<0)
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90 #define SND_FORMATUNSIGNED (1<<1)
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91 #define SND_FORMATBIGENDIAN (1<<2)
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92 #define SND_FORMATLITTLEENDIAN (1<<3)
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93
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94 /* Devconnect prescalers */
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95
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96 #define CLK_44K 1
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97 #define CLK_22K 3
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98 #define CLK_11K 7
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99
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100 /* Extra xbios functions */
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101
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102 #define NSoundcmd(mode,data,data2) \
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103 (long)trap_14_wwl((short)130,(short)(mode),(short)(data),(long)(data2))
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104 #define NSetinterrupt(src_inter,cause,inth_addr) \
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105 (long)trap_14_wwwl((short)135,(short)(src_inter),(short)(cause), \
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106 (long)(inth_addr))
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107
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108 #endif /* _SDL_mintaudio_gsxb_h */