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 | DMODE_16BITS
  46         /* | DMODE_HQMIXER */
  47                         | DMODE_INTERP );
  48
  49         if (MikMod_Init(NULL)) {
  50                 d_print("Could not initialize mikmod, reason: %s\n",
  51                                 MikMod_strerror(MikMod_errno));
  52                 return 0;
  53         }
  54
  55         inited = 1;
  56         return 1;
  57 }
  58
  59 static int mik_open(struct input_plugin_data *ip_data)
  60 {
  61         MODULE *mf = NULL;
  62         struct mik_private *priv;
  63         int mi=mikmod_init();
  64
  65         if (!mi)
  66                 return -IP_ERROR_INTERNAL;
  67
  68         mf = Player_Load(ip_data->filename, 255, 0);
  69
  70         if (!mf)
  71                 return -IP_ERROR_ERRNO;
  72
  73         priv = xnew(struct mik_private, 1);
  74         priv->file = mf;
  75
  76         ip_data->private = priv;
  77         ip_data->sf = sf_bits(16) | sf_rate(44100) | sf_channels(2) | sf_signed(1);
  78         return 0;
  79 }
  80
  81 static int mik_close(struct input_plugin_data *ip_data)
  82 {
  83         struct mik_private *priv = ip_data->private;
  84
  85         Player_Stop();
  86         Player_Free(priv->file);
  87         free(ip_data->private);
  88         ip_data->private = NULL;
  89         return 0;
  90 }
  91
  92 static int mik_read(struct input_plugin_data *ip_data, char *buffer, int count)
  93 {
  94         int length;
  95         struct mik_private *priv = ip_data->private;
  96
  97         if (!Player_Active())
  98                 Player_Start(priv->file);
  99
 100         if (!Player_Active())
 101                 return 0;
 102
 103         length = VC_WriteBytes(buffer, count);
 104
 105         return length;
 106 }
 107
 108 static int mik_seek(struct input_plugin_data *ip_data, double offset)
 109 {
 110         /* cannot seek in modules properly */
 111         return -IP_ERROR_FUNCTION_NOT_SUPPORTED;
 112 }
 113
 114 static int mik_read_comments(struct input_plugin_data *ip_data, struct keyval **comments)
 115 {
 116         /* Player_LoadTitle segfaults when we are playing a mod file.
 117          * This is a bug in libmikmod.
 118          */
 119 #if 0
 120         struct keyval *c;
 121         const char *name;
 122
 123         /* FIXME */
 124         name=Player_LoadTitle(ip_data->filename);
 125         c = xnew0(struct keyval, 2);
 126
 127         if (name != NULL && *name != 0) {
 128                 c[0].key = xstrdup("title");
 129                 c[0].val = xstrdup(name);
 130         } else {
 131                 c[0].key = xstrdup("title");
 132                 c[0].val = xstrdup(ip_data->filename);
 133         }
 134         *comments = c;
 135 #else
 136         *comments = xnew0(struct keyval, 1);
 137 #endif
 138         return 0;
 139 }
 140
 141 static int mik_duration(struct input_plugin_data *ip_data)
 142 {
 143         return -IP_ERROR_FUNCTION_NOT_SUPPORTED;
 144 }
 145
 146 const struct input_plugin_ops ip_ops = {
 147         .open = mik_open,
 148         .close = mik_close,
 149         .read = mik_read,
 150         .seek = mik_seek,
 151         .read_comments = mik_read_comments,
 152         .duration = mik_duration
 153 };
 154
 155 const char * const ip_extensions[] = {
 156         "mod", "s3m", "xm", "it", "669", "amf", "dsm",
 157         "far", "med", "mtm", "stm", "ult",
 158         NULL
 159 };
 160
 161 const char * const ip_mime_types[] = { NULL };