main.c

   1 /*
   2
   3     Ann Hell Ex Machina - Music Software
   4     Copyright (C) 2003/2008 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 #include <limits.h>
  32
  33 #include "ahxm.h"
  34
  35
  36 /** data **/
  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 static void read_config(void)
  50 {
  51 }
  52
  53
  54 static int main_usage(void)
  55 {
  56     printf("Ann Hell Ex Machina %s - Music Writing Software\n", VERSION);
  57     printf("Copyright (C) 2003-2008 Angel Ortega <angel@triptico.com>\n");
  58     printf("This software is covered by the GPL license. NO WARRANTY.\n\n");
  59     printf("Usage: ahxm [options] {script.ahs}\n\n");
  60     printf("Options:\n\n");
  61     printf("-o {output file or device} Set output file [default: driver dependent].\n");
  62     printf("-d {driver}                Output driver [default: 'default'].\n");
  63     printf("-L {path}                  Add path to script / data library search path.\n");
  64     printf("-r {sampling rate}         Set sampling rate [default: %d]\n",
  65            ss_frequency);
  66     printf("-c {# of channels}         Force number of channels [default: use all]\n");
  67     printf("-v {master volume}         Set master volume [default: %02.02f]\n",
  68          ss_master_volume);
  69     printf("-s {seconds to skip}       Seconds to skip from the start of the song.\n");
  70     printf("                           [default: 0, start from the beginning]\n");
  71     printf("-z {track number}          Play track number in a solo\n");
  72     printf("-i {interpolation}         Set interpolation algorithm\n");
  73     printf("                           (0, none; 1, linear; 2, cubic spline,\n");
  74     printf("                           3, Lagrange) [default: %d]\n",
  75            ss_interpolation);
  76     printf("-b {size in frames}        Set maximum wave buffer size in frames, so\n");
  77     printf("                           wave files bigger than this will be paged\n");
  78     printf("                           (-1, load full wave in memory) [default: %d]\n",
  79          ss_page_size);
  80     printf("-D {number}                Verbosity level (0-3) [default: %d].\n",
  81          verbose);
  82     printf("-C {cue file name}         Generate .cue file.\n");
  83     printf("-T                         Show tracing information.\n");
  84     printf("-M                         Output song to MIDI device instead of softsynth.\n");
  85     printf("-I                         Interactive; read from MIDI device and\n");
  86     printf("                           use {script} as instrument (UNIMPLEMENTED).\n");
  87     printf("\n");
  88     printf("Internal sample size: %d bytes (floating point)\n",
  89            (int) sizeof(sample_t));
  90     printf("Library path: ");
  91     libpath_print();
  92     printf("\n");
  93
  94     return 1;
  95 }
  96
  97
  98 static int main_interactive(char *script_or_ins)
  99 {
 100     printf("UNIMPLEMENTED; use the 'midiin' program instead.\n");
 101     return 0;
 102 }
 103
 104
 105 static int main_midi(char *script)
 106 {
 107     if (compile_ahs(script))
 108         return 3;
 109
 110     if (midi_device_open(devfile) < 0) {
 111         printf("Error: can't open MIDI device\n");
 112         return 2;
 113     }
 114
 115     midi_song_play(skip_secs);
 116
 117     midi_device_close();
 118
 119     return 0;
 120 }
 121
 122
 123 static int main_ss(char *script)
 124 {
 125     char *ptr;
 126
 127     /* is it an .sf2? create an ad-hoc mini program to list it */
 128     if ((ptr = strrchr(script, '.')) != NULL && strcmp(ptr, ".sf2") == 0) {
 129         char tmp[4096];
 130
 131         snprintf(tmp, sizeof(tmp), "{ sf2 \"%s\" }", script);
 132         if (compile_ahs_string(tmp))
 133             return 4;
 134     }
 135     else
 136     if (compile_ahs(script))
 137         return 3;
 138
 139     ss_song_render(skip_secs, driver, devfile);
 140
 141     if (verbose >= 1)
 142         printf("clipped: %d optimal volume: %f\n",
 143                ss_output_clipped, ss_optimal_volume);
 144
 145     return 0;
 146 }
 147
 148
 149 static int ahxm_main(int argc, char *argv[])
 150 {
 151     int ret = 1;
 152     int n = 1;
 153     char *opt = NULL;
 154     char *script = NULL;
 155     int midi = 0;
 156     int interactive = 0;
 157
 158     read_config();
 159
 160     /* default path */
 161     libpath_add("~/ahxmlib", 0);
 162
 163     /* specific converters */
 164     transconv_add(".flac", ".wav", "flac -d -s -o '%s' '%s'");
 165     transconv_add(".mp3", ".wav", "mpg321 -q -w '%s' '%s'");
 166
 167     /* fallout converter */
 168     transconv_add(".*", ".wav", "ffmpeg '%s' -i '%s'");
 169
 170     if (argc == 1)
 171         return main_usage();
 172
 173     while (n < argc - 1) {
 174         opt = argv[n++];
 175
 176         if (strcmp(opt, "-o") == 0) {
 177             /* set output device or file */
 178             devfile = argv[n++];
 179         }
 180         else
 181         if (strcmp(opt, "-d") == 0) {
 182             /* set driver */
 183             driver = argv[n++];
 184         }
 185         else
 186         if (strcmp(opt, "-L") == 0) {
 187             /* add path to library */
 188             libpath_add(argv[n++], 0);
 189         }
 190         else
 191         if (strcmp(opt, "-r") == 0) {
 192             /* set sampling rate */
 193             ss_frequency = atoi(argv[n++]);
 194         }
 195         else
 196         if (strcmp(opt, "-c") == 0) {
 197             /* set number of channels */
 198             ss_nchannels = atoi(argv[n++]);
 199         }
 200         else
 201         if (strcmp(opt, "-v") == 0) {
 202             /* set master volume */
 203             ss_master_volume = (double) atof(argv[n++]);
 204         }
 205         else
 206         if (strcmp(opt, "-i") == 0) {
 207             /* set interpolation type */
 208             ss_interpolation = atoi(argv[n++]);
 209         }
 210         else
 211         if (strcmp(opt, "-s") == 0) {
 212             /* seconds to skip */
 213             skip_secs = atoi(argv[n++]);
 214         }
 215         else
 216         if (strcmp(opt, "-I") == 0) {
 217             /* activate interactive mode */
 218             interactive = 1;
 219         }
 220         else
 221         if (strcmp(opt, "-M") == 0) {
 222             /* activate MIDI mode */
 223             midi = 1;
 224         }
 225         else
 226         if (strcmp(opt, "-z") == 0) {
 227             /* set solo track */
 228             solo_track = atoi(argv[n++]);
 229         }
 230         else
 231         if (strcmp(opt, "-b") == 0) {
 232             /* set page size */
 233             ss_page_size = atoi(argv[n++]);
 234
 235             /* if it's -1, set as 'no limit' */
 236             if (ss_page_size < 0)
 237                 ss_page_size = INT_MAX;
 238         }
 239         else
 240         if (strcmp(opt, "-D") == 0) {
 241             /* debug information */
 242             verbose = atoi(argv[n++]);
 243         }
 244         else
 245         if (strcmp(opt, "-C") == 0) {
 246             /* set cue file name */
 247             ss_cue_file_name = argv[n++];
 248         }
 249         else
 250         if (strcmp(opt, "-T") == 0)
 251             trace = 1;
 252         else
 253             return main_usage();
 254     }
 255
 256     script = argv[argc - 1];
 257
 258     if (*script == '-')
 259         return main_usage();
 260
 261     if (interactive)
 262         ret = main_interactive(script);
 263     else
 264     if (midi)
 265         ret = main_midi(script);
 266     else
 267         ret = main_ss(script);
 268
 269     return ret;
 270 }
 271
 272
 273 int main(int argc, char *argv[])
 274 {
 275     return ahxm_main(argc, argv);
 276 }