mikmod.c

   1 /*
   2  * Adapted from AlsaPlayer 0.99.76
   3  *
   4  * mikmod_engine.c
   5  * Copyright (C) 1999 Paul N. Fisher <rao@gnu.org>
   6  * Copyright (C) 2002 Andy Lo A Foe <andy@alsaplayer.org>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23
  24 #include "ip.h"
  25 #include "xmalloc.h"
  26 #include <mikmod.h>
  27 #include "debug.h"
  28
  29 struct mik_private {
  30         MODULE *file;
  31 };
  32
  33 static int mikmod_init(void)
  34 {
  35         static int inited = 0;
  36
  37         if (inited)
  38                 return 1;
  39
  40         MikMod_RegisterAllDrivers();
  41         MikMod_RegisterAllLoaders();
  42
  43         md_reverb = 0;
  44         /* we should let the user decide which one is better... */
  45         md_mode = DMODE_SOFT_MUSIC | DMODE_SOFT_SNDFX | DMODE_STEREO |
  46                 DMODE_16BITS | DMODE_INTERP;
  47
  48         if (MikMod_Init(NULL)) {
  49                 d_print("Could not initialize mikmod, reason: %s\n",
  50                                 MikMod_strerror(MikMod_errno));
  51                 return 0;
  52         }
  53
  54         inited = 1;
  55         return 1;
  56 }
  57
  58 static int mik_open(struct input_plugin_data *ip_data)
  59 {
  60         MODULE *mf = NULL;
  61         struct mik_private *priv;
  62         int mi = mikmod_init();
  63
  64         if (!mi)
  65                 return -IP_ERROR_INTERNAL;
  66
  67         mf = Player_Load(ip_data->filename, 255, 0);
  68
  69         if (!mf)
  70                 return -IP_ERROR_ERRNO;
  71
  72         priv = xnew(struct mik_private, 1);
  73         priv->file = mf;
  74
  75         ip_data->private = priv;
  76         ip_data->sf = sf_bits(16) | sf_rate(44100) | sf_channels(2) | sf_signed(1);
  77         return 0;
  78 }
  79
  80 static int mik_close(struct input_plugin_data *ip_data)
  81 {
  82         struct mik_private *priv = ip_data->private;
  83
  84         Player_Stop();
  85         Player_Free(priv->file);
  86         free(ip_data->private);
  87         ip_data->private = NULL;
  88         return 0;
  89 }
  90
  91 static int mik_read(struct input_plugin_data *ip_data, char *buffer, int count)
  92 {
  93         int length;
  94         struct mik_private *priv = ip_data->private;
  95
  96         if (!Player_Active())
  97                 Player_Start(priv->file);
  98
  99         if (!Player_Active())
 100                 return 0;
 101
 102         length = VC_WriteBytes(buffer, count);
 103
 104         return length;
 105 }
 106
 107 static int mik_seek(struct input_plugin_data *ip_data, double offset)
 108 {
 109         /* cannot seek in modules properly */
 110         return -IP_ERROR_FUNCTION_NOT_SUPPORTED;
 111 }
 112
 113 static int mik_read_comments(struct input_plugin_data *ip_data, struct keyval **comments)
 114 {
 115         /* Player_LoadTitle segfaults when we are playing a mod file.
 116          * This is a bug in libmikmod.
 117          */
 118 #if 0
 119         struct keyval *c;
 120         const char *name;
 121
 122         /* FIXME */
 123         name = Player_LoadTitle(ip_data->filename);
 124         c = xnew0(struct keyval, 2);
 125
 126         if (name != NULL && *name != 0) {
 127                 c[0].key = xstrdup("title");
 128                 c[0].val = xstrdup(name);
 129         } else {
 130                 c[0].key = xstrdup("title");
 131                 c[0].val = xstrdup(ip_data->filename);
 132         }
 133         *comments = c;
 134 #else
 135         *comments = xnew0(struct keyval, 1);
 136 #endif
 137         return 0;
 138 }
 139
 140 static int mik_duration(struct input_plugin_data *ip_data)
 141 {
 142         return -IP_ERROR_FUNCTION_NOT_SUPPORTED;
 143 }
 144
 145 const struct input_plugin_ops ip_ops = {
 146         .open = mik_open,
 147         .close = mik_close,
 148         .read = mik_read,
 149         .seek = mik_seek,
 150         .read_comments = mik_read_comments,
 151         .duration = mik_duration
 152 };
 153
 154 const char * const ip_extensions[] = {
 155         "mod", "s3m", "xm", "it", "669", "amf", "dsm",
 156         "far", "med", "mtm", "stm", "ult",
 157         NULL
 158 };
 159
 160 const char * const ip_mime_types[] = { NULL };