main.c

   1 /*
   2
   3     Ann Hell Ex Machina - Music Software
   4     Copyright (C) 2003/2005 Angel Ortega <angel@triptico.com>
   5
   6     main.c - Miscellaneous functions and startup
   7
   8     This program is free software; you can redistribute it and/or
   9     modify it under the terms of the GNU General Public License
  10     as published by the Free Software Foundation; either version 2
  11     of the License, or (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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21
  22     http://www.triptico.com
  23
  24 */
  25
  26 #include "config.h"
  27
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <stdlib.h>
  31
  32 #include "annhell.h"
  33
  34 /*******************
  35         Data
  36 ********************/
  37
  38 /* output information */
  39
  40 static char * devfile=NULL;
  41 static char * driver="default";
  42
  43 /* seconds to skip */
  44 static int skip_secs=0;
  45
  46 /*******************
  47         Code
  48 ********************/
  49
  50 static void read_config(void)
  51 {
  52 }
  53
  54
  55 static int main_usage(void)
  56 {
  57         printf("Ann Hell Ex Machina %s - Music Writing Software\n", VERSION);
  58         printf("Copyright (C) 2003-2005 Angel Ortega <angel@triptico.com>\n");
  59         printf("This software is covered by the GPL license. NO WARRANTY.\n\n");
  60         printf("Usage: annhell [options] {script.ahs}\n\n");
  61         printf("Options:\n\n");
  62         printf("-o {output file or device} Set output file [default: driver dependent].\n");
  63         printf("-d {driver}                Output driver [default: 'default'].\n");
  64         printf("-L {path}                  Add path to script / data library search path.\n");
  65         printf("-r {sampling rate}         Set sampling rate [default: 44100]\n");
  66         printf("-c {# of channels}         Set number of channels [default: 2]\n");
  67         printf("-v {master volume}         Set master volume [default: 0.5]\n");
  68         printf("-s {seconds to skip}       Seconds to skip from the start of the song.\n");
  69         printf("                           [default: 0, start from the beginning]\n");
  70         printf("-i {interpolation}         Set interpolation algorithm\n");
  71         printf("                           (0, none; 1, linear; 2, cubic spline,\n");
  72         printf("                           3, Lagrange) [default: 3]\n");
  73         printf("-D                         Show debugging information.\n");
  74         printf("-M                         Output song to MIDI device instead of softsynth.\n");
  75         printf("-I                         Interactive; read from MIDI device and\n");
  76         printf("                           use {script} as instrument.\n");
  77         printf("\n");
  78         printf("Internal sample size: %d bits (floating point)\n", sizeof(sample_t) * 8);
  79
  80         return(1);
  81 }
  82
  83
  84 static int main_interactive(char * script_or_ins)
  85 {
  86         printf("UNIMPLEMENTED; use the 'midiin' program instead.\n");
  87         return(0);
  88 }
  89
  90
  91 static int main_midi(char * script)
  92 {
  93         if(compile_ahs(script))
  94                 return(3);
  95
  96         if(midi_device_open(devfile) < 0)
  97         {
  98                 printf("Error: can't open MIDI device\n");
  99                 return(2);
 100         }
 101
 102         midi_song_play(skip_secs);
 103
 104         midi_device_close();
 105
 106         return(0);
 107 }
 108
 109
 110 static int main_ss(char * script)
 111 {
 112         if(ss_output_open(driver, devfile) < 0)
 113         {
 114                 printf("Error: can't init driver\n");
 115                 return(2);
 116         }
 117
 118         if(compile_ahs(script))
 119                 return(3);
 120
 121         ss_song_render(skip_secs);
 122
 123         ss_output_close();
 124
 125         printf("clipped: %d optimal volume: %f\n",
 126                 ss_output_clipped, ss_optimal_volume);
 127
 128         return(0);
 129 }
 130
 131
 132 static int annhell_main(int argc, char * argv[])
 133 {
 134         int ret=1;
 135         int n=1;
 136         char * opt=NULL;
 137         char * script=NULL;
 138         int midi=0;
 139         int interactive=0;
 140
 141         if(argc == 1)
 142                 return(main_usage());
 143
 144         read_config();
 145
 146         /* default path */
 147         add_to_library_path("~/annhell", 0);
 148
 149         while(n < argc - 1)
 150         {
 151                 opt=argv[n++];
 152
 153                 if(strcmp(opt, "-o") == 0)
 154                 {
 155                         /* set output device or file */
 156                         devfile=argv[n++];
 157                 }
 158                 else
 159                 if(strcmp(opt, "-d") == 0)
 160                 {
 161                         /* set driver */
 162                         driver=argv[n++];
 163                 }
 164                 else
 165                 if(strcmp(opt, "-L") == 0)
 166                 {
 167                         /* add path to library */
 168                         add_to_library_path(argv[n++], 0);
 169                 }
 170                 else
 171                 if(strcmp(opt, "-r") == 0)
 172                 {
 173                         /* set sampling rate */
 174                         ss_frequency=atoi(argv[n++]);
 175                 }
 176                 else
 177                 if(strcmp(opt, "-c") == 0)
 178                 {
 179                         /* set number of channels */
 180                         ss_nchannels=atoi(argv[n++]);
 181                 }
 182                 else
 183                 if(strcmp(opt, "-v") == 0)
 184                 {
 185                         /* set master volume */
 186                         ss_master_volume=(double) atof(argv[n++]);
 187                 }
 188                 else
 189                 if(strcmp(opt, "-i") == 0)
 190                 {
 191                         /* set interpolation type */
 192                         ss_interpolation=atoi(argv[n++]);
 193                 }
 194                 else
 195                 if(strcmp(opt, "-s") == 0)
 196                 {
 197                         /* seconds to skip */
 198                         skip_secs=atoi(argv[n++]);
 199                 }
 200                 else
 201                 if(strcmp(opt, "-I") == 0)
 202                 {
 203                         /* activate interactive mode */
 204                         interactive=1;
 205                 }
 206                 else
 207                 if(strcmp(opt, "-M") == 0)
 208                 {
 209                         /* activate MIDI mode */
 210                         midi=1;
 211                 }
 212                 else
 213                 if(strcmp(opt, "-D") == 0)
 214                         debug=1;
 215                 else
 216                         return(main_usage());
 217         }
 218
 219         script=argv[argc - 1];
 220
 221         if(*script == '-')
 222                 return(main_usage());
 223
 224         if(interactive)
 225                 ret=main_interactive(script);
 226         else
 227         if(midi)
 228                 ret=main_midi(script);
 229         else
 230                 ret=main_ss(script);
 231
 232         return(ret);
 233 }
 234
 235
 236 int main(int argc, char * argv[])
 237 {
 238         return(annhell_main(argc, argv));
 239 }