| | 1 | /* -*-c-*- |
| | 2 | * |
| | 3 | * $Id: ausys-fake.c,v 1.1 2002/02/02 19:16:28 mdw Exp $ |
| | 4 | * |
| | 5 | * Fake not-audio-at-all audio driver |
| | 6 | * |
| | 7 | * (c) 2002 Mark Wooding |
| | 8 | */ |
| | 9 | |
| | 10 | /*----- Licensing notice --------------------------------------------------* |
| | 11 | * |
| | 12 | * This file is part of Jog: Programming for a jogging machine. |
| | 13 | * |
| | 14 | * Jog is free software; you can redistribute it and/or modify |
| | 15 | * it under the terms of the GNU General Public License as published by |
| | 16 | * the Free Software Foundation; either version 2 of the License, or |
| | 17 | * (at your option) any later version. |
| | 18 | * |
| | 19 | * Jog is distributed in the hope that it will be useful, |
| | 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 22 | * GNU General Public License for more details. |
| | 23 | * |
| | 24 | * You should have received a copy of the GNU General Public License |
| | 25 | * along with Jog; if not, write to the Free Software Foundation, |
| | 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| | 27 | */ |
| | 28 | |
| | 29 | /*----- Header files ------------------------------------------------------*/ |
| | 30 | |
| | 31 | #ifdef HAVE_CONFIG_H |
| | 32 | # include "config.h" |
| | 33 | #endif |
| | 34 | |
| | 35 | #include <stdio.h> |
| | 36 | #include <string.h> |
| | 37 | |
| | 38 | #include <mLib/alloc.h> |
| | 39 | #include <mLib/sub.h> |
| | 40 | #include <mLib/trace.h> |
| | 41 | |
| | 42 | #include "au.h" |
| | 43 | #include "ausys.h" |
| | 44 | #include "jog.h" |
| | 45 | |
| | 46 | /*----- Global variables --------------------------------------------------*/ |
| | 47 | |
| | 48 | const char *const ausys_suffix = "txt"; |
| | 49 | |
| | 50 | /*----- Main code ---------------------------------------------------------*/ |
| | 51 | |
| | 52 | /* --- @ausys_init@ --- * |
| | 53 | * |
| | 54 | * Arguments: --- |
| | 55 | * |
| | 56 | * Returns: --- |
| | 57 | * |
| | 58 | * Use: Does any initialization required by the system-specific audio |
| | 59 | * handler. |
| | 60 | */ |
| | 61 | |
| | 62 | void ausys_init(void) |
| | 63 | { |
| | 64 | T( trace(T_AUSYS, "ausys: initalized ok"); ) |
| | 65 | } |
| | 66 | |
| | 67 | /* --- @ausys_shutdown@ --- * |
| | 68 | * |
| | 69 | * Arguments: --- |
| | 70 | * |
| | 71 | * Returns: --- |
| | 72 | * |
| | 73 | * Use: Does any tidying up required. |
| | 74 | */ |
| | 75 | |
| | 76 | void ausys_shutdown(void) |
| | 77 | { |
| | 78 | T( trace(T_AUSYS, "ausys: shut down ok"); ) |
| | 79 | } |
| | 80 | |
| | 81 | /* --- @ausys_lock@, @ausys_unlock@ --- * |
| | 82 | * |
| | 83 | * Arguments: --- |
| | 84 | * |
| | 85 | * Returns: --- |
| | 86 | * |
| | 87 | * Use: Locks or unlocks the audio subsystem. This protects the |
| | 88 | * audio queue from becoming corrupted during all the tedious |
| | 89 | * asynchronous stuff. |
| | 90 | */ |
| | 91 | |
| | 92 | void ausys_lock(void) { T( trace(T_AUSYS, "ausys: acquired lock"); ) ; } |
| | 93 | void ausys_unlock(void) { T( trace(T_AUSYS, "ausys: released lock"); ) ; } |
| | 94 | |
| | 95 | /* --- @ausys_decode@ --- * |
| | 96 | * |
| | 97 | * Arguments: @au_sample *s@ = pointer to sample block |
| | 98 | * @const void *p@ = pointer to sample file contents |
| | 99 | * @size_t sz@ = size of sample file contents |
| | 100 | * |
| | 101 | * Returns: Pointer to a sample data structure. |
| | 102 | * |
| | 103 | * Use: Decodes a WAV file into something the system-specific layer |
| | 104 | * actually wants to deal with. |
| | 105 | */ |
| | 106 | |
| | 107 | au_data *ausys_decode(au_sample *s, const void *p, size_t sz) |
| | 108 | { |
| | 109 | au_data *a = CREATE(au_data); |
| | 110 | const octet *pp = p; |
| | 111 | const octet *qq = memchr(pp, '\n', sz); |
| | 112 | |
| | 113 | if (qq) |
| | 114 | sz = qq - pp; |
| | 115 | else |
| | 116 | sz++; |
| | 117 | a->p = xmalloc(sz); |
| | 118 | a->sz = sz; |
| | 119 | memcpy(a->p, p, sz); |
| | 120 | a->p[sz] = 0; |
| | 121 | T( trace(T_AUSYS, "ausys: decoded `%s' ok", SYM_NAME(s)); ) |
| | 122 | return (a); |
| | 123 | } |
| | 124 | |
| | 125 | /* --- @ausys_queue@ --- * |
| | 126 | * |
| | 127 | * Arguments: @au_data *a@ = an audio thingy to play |
| | 128 | * |
| | 129 | * Returns: --- |
| | 130 | * |
| | 131 | * Use: Queues an audio sample to be played. The sample should be |
| | 132 | * freed (with @au_free@) when it's no longer wanted. |
| | 133 | */ |
| | 134 | |
| | 135 | void ausys_queue(au_data *a) |
| | 136 | { |
| | 137 | T( trace(T_AUSYS, "ausys: queuing `%s'", SYM_NAME(a->s)); ) |
| | 138 | printf("[%s]\n", a->p); |
| | 139 | au_free(a); |
| | 140 | } |
| | 141 | |
| | 142 | /* --- @ausys_free@ --- * |
| | 143 | * |
| | 144 | * Arguments: @au_data *a@ = an audio thingy to free |
| | 145 | * |
| | 146 | * Returns: --- |
| | 147 | * |
| | 148 | * Use: Frees a decoded audio sample. |
| | 149 | */ |
| | 150 | |
| | 151 | void ausys_free(au_data *a) |
| | 152 | { |
| | 153 | T( trace(T_AUSYS, "ausys: freeing data for `%s' ok", SYM_NAME(a->s)); ) |
| | 154 | xfree(a->p); |
| | 155 | DESTROY(a); |
| | 156 | } |
| | 157 | |
| | 158 | /*----- That's all, folks -------------------------------------------------*/ |
~mdw / jog / blame_incremental