e9060e7e |
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 | |
e9060e7e |
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 -------------------------------------------------*/ |