wav.c

   1 /*
   2
   3     Ann Hell Ex Machina - Music Software
   4     Copyright (C) 2003 Angel Ortega <angel@triptico.com>
   5
   6     wav.c - Code for testing the libraries
   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 <math.h>
  32
  33 #include "core.h"
  34 #include "output.h"
  35 #include "generator.h"
  36 #include "effect.h"
  37 #include "instrument.h"
  38 #include "input.h"
  39 #include "event.h"
  40 #include "preprocessor.h"
  41 #include "compiler.h"
  42
  43 /*******************
  44         Data
  45 ********************/
  46
  47 /*******************
  48         Code
  49 ********************/
  50
  51 extern double _note_frequency[128];
  52
  53 int main(void)
  54 {
  55         float * wave[CHANNELS];
  56         float output[CHANNELS];
  57         float vol[CHANNELS];
  58         double size;
  59         int n_channels;
  60         FILE * f;
  61         int n, m;
  62         struct effect e[16];
  63         struct instrument i[16];
  64         struct event * ev;
  65         int goon;
  66
  67         {
  68                 char * ptr=preprocess("%examples/example1.ahml");
  69                 printf("%s\n",ptr);
  70                 compile("$100:qq l16l0 c8d#''4/3*6~0.5 o2e4~0.8o++f");
  71         }
  72
  73         _linear_interpolation=1;
  74         _frequency=44100;
  75         _master_volume=0.5;
  76         _n_channels=4;
  77
  78         build_note_frequencies();
  79
  80         init_instrument(&i[1]);
  81         load_pat_file(&i[1], "samples/acpiano.pat");
  82
  83 /*      n_channels=load_wav_file("samples/as-al017.wav", &size, wave); */
  84         n_channels=load_wav_file("samples/amen1.wav", &size, wave);
  85         printf("n_channels: %d\n", n_channels);
  86
  87         init_instrument(&i[0]);
  88         add_instrument_layer(&i[0], 36, 0, 128,
  89                 n_channels, wave, size, 0, size);
  90
  91 /*
  92         f=popen("sox -V -t raw -s -r 44100 -c 2 -w - qq.wav","w");
  93 */
  94
  95         if(output_open("default", NULL) < 0)
  96         {
  97                 printf("Error: can't init driver\n");
  98                 return(1);
  99         }
 100
 101         /* 'reverb' with 3 allpass */
 102         /*
 103         init_delay(&e, (int)TIME2SAMPLES(20.0 / 1000.0), 0.9, 0, 0, 0, 0);
 104         init_delay(&e2, (int)TIME2SAMPLES(36.0 / 1000.0), 0.9, 0, 0, 0, 0);
 105         init_delay(&e3, (int)TIME2SAMPLES(39.0 / 1000.0), 0.9, 0, 0, 0, 0);
 106         */
 107
 108 /*      init_delay(&e, 44100, 0.9, 150, 0.1, 3.14 / 2, 0); */
 109
 110         /* wobble */
 111         /*
 112         init_delay(&e4, 1, 1, 1, 4, 3.14 / 2, 0);
 113         */
 114
 115         /* wobble */
 116         effect_wobble(&e[0], 0.5, 0);
 117         effect_wobble(&e[1], 0.5, 0.25);
 118
 119         /* delay */
 120         effect_delay(&e[2], 300);
 121
 122         /* allpasses in serial (reverb) */
 123         effect_allpass(&e[3], (int)TIME2SAMPLES(20.0 / 1000.0), 0.9);
 124         effect_allpass(&e[4], (int)TIME2SAMPLES(36.0 / 1000.0), 0.9);
 125         effect_allpass(&e[5], (int)TIME2SAMPLES(39.0 / 1000.0), 0.9);
 126
 127         effect_allpass(&e[6], (int)TIME2SAMPLES(20.0 / 1000.0), 0.9);
 128         effect_allpass(&e[7], (int)TIME2SAMPLES(36.0 / 1000.0), 0.9);
 129         effect_allpass(&e[8], (int)TIME2SAMPLES(39.0 / 1000.0), 0.9);
 130
 131         /* flanger */
 132         effect_flanger(&e[9], 44100, 0.9, 150, 0.1, 0.25);
 133         effect_flanger(&e[10], 44100, 0.9, 150, 0.1, 0);
 134
 135         /* fader */
 136         effect_fader(&e[11], 44100 * 6, 0, 1);
 137
 138         /* events */
 139         event_clear();
 140
 141         vol[0]=1.0; vol[1]=1.0; vol[2]=0.0; vol[3]=0.0;
 142         instrument_set_channel_map(&i[0], 4, vol);
 143
 144         /* drum loop */
 145         event_note_on(0, 0, 36, 1);
 146         event_note_off(441000, 0, 36);
 147
 148         /* piano */
 149         vol[0]=0.0; vol[1]=0.0; vol[2]=1.0; vol[3]=1.0;
 150         instrument_set_channel_map(&i[1], 4, vol);
 151
 152         event_note_on(44100, 1, 64, 1);
 153         event_note_on(44100, 1, 67, 1);
 154         event_note_on(44100, 1, 71, 1);
 155
 156         event_note_off(44100 * 3, 1, 64);
 157         event_note_off(44100 * 3, 1, 67);
 158         event_note_off(44100 * 3, 1, 71);
 159
 160         event_note_on(44100 * 3, 1, 64, 1);
 161         event_note_on(44100 * 3, 1, 66, 1);
 162         event_note_on(44100 * 3, 1, 71, 1);
 163
 164         event_note_off(44100 * 6, 1, 64);
 165         event_note_off(44100 * 6, 1, 66);
 166         event_note_off(44100 * 6, 1, 71);
 167
 168         event_note_on(44100, 1, 28, 1);
 169         event_note_off(44100 * 9, 1, 28);
 170
 171         event_end_song(44100 * 11);
 172
 173         event_sort();
 174
 175         ev=_events;
 176
 177         for(n=0,goon=1;goon;n++)
 178         {
 179                 while(ev->frame == n)
 180                 {
 181                         /* processes the event */
 182                         if(ev->type == EVENT_NOTE_ON)
 183                                 instrument_play_note(&i[ev->instrk],
 184                                         ev->iparam[0], ev->fparam[0]);
 185                         else
 186                         if(ev->type == EVENT_NOTE_OFF)
 187                                 instrument_release_note(&i[ev->instrk], ev->iparam[0]);
 188                         else
 189                         if(ev->type == EVENT_DEBUG)
 190                                 printf("debug!\n");
 191                         else
 192                         if(ev->type == EVENT_END_SONG)
 193                                 goon=0;
 194
 195                         ev++;
 196                 }
 197
 198                 output_init_frame(output);
 199
 200                 generate_instrument(&i[0], output);
 201                 generate_instrument(&i[1], output);
 202
 203 #ifdef QQ
 204                 if(n < TIME2SAMPLES(13))
 205                 {
 206                         output[0]=process_effect(&e[0], output[0]);
 207                         output[1]=process_effect(&e[1], output[1]);
 208
 209 /*                      output[1]=process_effect(&e[2], output[1]); */
 210
 211 /*                      output[0]=process_effect(&e[3], output[0]);
 212                         output[0]=process_effect(&e[4], output[0]);
 213                         output[0]=process_effect(&e[5], output[0]);
 214
 215                         output[1]=process_effect(&e[6], output[1]);
 216                         output[1]=process_effect(&e[7], output[1]);
 217                         output[1]=process_effect(&e[8], output[1]); */
 218
 219 /*                      output[0]=process_effect(&e[9], output[0]);
 220                         output[1]=process_effect(&e[10], output[1]); */
 221
 222 /*                      output[0]=process_effect(&e[11], output[0]);
 223                         output[1]=process_effect(&e[11], output[1]); */
 224                 }
 225 #endif
 226
 227                 output_write(output);
 228
 229 /*              if(n < TIME2SAMPLES(14))
 230                         generator_release(&_generators[1]); */
 231         }
 232
 233         output_close();
 234
 235         printf("clipped: %d optimal volume: %f\n",
 236                 _output_clipped, _optimal_volume);
 237
 238         return(0);
 239 }