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("-M                         Output song to MIDI device instead of softsynth.\n");
  74         printf("-I                         Interactive; read from MIDI device and\n");
  75         printf("                           use {script} as instrument.\n");
  76
  77         return(1);
  78 }
  79
  80
  81 static int main_interactive(char * script_or_ins)
  82 {
  83         printf("UNIMPLEMENTED; use the 'midiin' program instead.\n");
  84         return(0);
  85 }
  86
  87
  88 static int main_midi(char * script)
  89 {
  90         if(compile_ahs(script))
  91                 return(3);
  92
  93         if(midi_device_open(devfile) < 0)
  94         {
  95                 printf("Error: can't open MIDI device\n");
  96                 return(2);
  97         }
  98
  99         midi_song_play(skip_secs);
 100
 101         midi_device_close();
 102
 103         return(0);
 104 }
 105
 106
 107 static int main_ss(char * script)
 108 {
 109         if(ss_output_open(driver, devfile) < 0)
 110         {
 111                 printf("Error: can't init driver\n");
 112                 return(2);
 113         }
 114
 115         if(compile_ahs(script))
 116                 return(3);
 117
 118         ss_song_render(skip_secs);
 119
 120         ss_output_close();
 121
 122         printf("clipped: %d optimal volume: %f\n",
 123                 ss_output_clipped, ss_optimal_volume);
 124
 125         return(0);
 126 }
 127
 128
 129 static int annhell_main(int argc, char * argv[])
 130 {
 131         int ret=1;
 132         int n=1;
 133         char * opt=NULL;
 134         char * script=NULL;
 135         int midi=0;
 136         int interactive=0;
 137
 138         if(argc == 1)
 139                 return(main_usage());
 140
 141         read_config();
 142
 143         while(n < argc - 1)
 144         {
 145                 opt=argv[n++];
 146
 147                 if(strcmp(opt, "-o") == 0)
 148                 {
 149                         /* set output device or file */
 150                         devfile=argv[n++];
 151                 }
 152                 else
 153                 if(strcmp(opt, "-d") == 0)
 154                 {
 155                         /* set driver */
 156                         driver=argv[n++];
 157                 }
 158                 else
 159                 if(strcmp(opt, "-L") == 0)
 160                 {
 161                         /* add path to library */
 162                         add_to_library_path(argv[n++], 0);
 163                 }
 164                 else
 165                 if(strcmp(opt, "-r") == 0)
 166                 {
 167                         /* set sampling rate */
 168                         ss_frequency=atoi(argv[n++]);
 169                 }
 170                 else
 171                 if(strcmp(opt, "-c") == 0)
 172                 {
 173                         /* set number of channels */
 174                         ss_nchannels=atoi(argv[n++]);
 175                 }
 176                 else
 177                 if(strcmp(opt, "-v") == 0)
 178                 {
 179                         /* set master volume */
 180                         ss_master_volume=(double) atof(argv[n++]);
 181                 }
 182                 else
 183                 if(strcmp(opt, "-i") == 0)
 184                 {
 185                         /* set interpolation type */
 186                         ss_interpolation=atoi(argv[n++]);
 187                 }
 188                 else
 189                 if(strcmp(opt, "-s") == 0)
 190                 {
 191                         /* seconds to skip */
 192                         skip_secs=atoi(argv[n++]);
 193                 }
 194                 else
 195                 if(strcmp(opt, "-I") == 0)
 196                 {
 197                         /* activate interactive mode */
 198                         interactive=1;
 199                 }
 200                 else
 201                 if(strcmp(opt, "-M") == 0)
 202                 {
 203                         /* activate MIDI mode */
 204                         midi=1;
 205                 }
 206                 else
 207                         return(main_usage());
 208         }
 209
 210         script=argv[argc - 1];
 211
 212         if(*script == '-')
 213                 return(main_usage());
 214
 215         /* default path */
 216         add_to_library_path("~/annhell", 0);
 217
 218         if(interactive)
 219                 ret=main_interactive(script);
 220         else
 221         if(midi)
 222                 ret=main_midi(script);
 223         else
 224                 ret=main_ss(script);
 225
 226         return(ret);
 227 }
 228
 229
 230 int main(int argc, char * argv[])
 231 {
 232         return(annhell_main(argc, argv));
 233 }