audio.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #include "common.h"
   6
   7 #ifndef AUDIO_H
   8 #define AUDIO_H
   9
  10 #include "world.h"
  11
  12 VG_STATIC float audio_occlusion_current = 0.0f,
  13              k_audio_occlusion_rate  = 1.0f;
  14
  15 VG_STATIC int k_audio_debug_soundscape = 0;
  16
  17 audio_clip audio_board[] =
  18 {
  19    { .path="sound/skate_hpf.ogg" },
  20    { .path="sound/wheel.ogg" },
  21    { .path="sound/slide.ogg" },
  22    { .path="sound/grind_enter.ogg" },
  23    { .path="sound/grind_exit.ogg" },
  24    { .path="sound/grind_loop.ogg" },
  25    { .path="sound/woodslide.ogg" },
  26    { .path="sound/metalscrape.ogg" },
  27    { .path="sound/slidetap.ogg" }
  28 };
  29
  30 audio_clip audio_taps[] =
  31 {
  32    { .path="sound/tap0.ogg" },
  33    { .path="sound/tap1.ogg" },
  34    { .path="sound/tap2.ogg" },
  35    { .path="sound/tap3.ogg" }
  36 };
  37
  38 audio_clip audio_hits[] =
  39 {
  40    { .path="sound/hit0.ogg" },
  41    { .path="sound/hit1.ogg" },
  42    { .path="sound/hit2.ogg" },
  43    { .path="sound/hit3.ogg" },
  44    { .path="sound/hit4.ogg" }
  45 };
  46
  47 audio_clip audio_splash =
  48 { .path = "sound/splash.ogg" };
  49
  50 audio_clip audio_jumps[] = {
  51    { .path = "sound/jump0.ogg" },
  52    { .path = "sound/jump1.ogg" },
  53 };
  54
  55 audio_clip audio_footsteps[] = {
  56  {.path = "sound/step_concrete0.ogg" },
  57  {.path = "sound/step_concrete1.ogg" },
  58  {.path = "sound/step_concrete2.ogg" },
  59  {.path = "sound/step_concrete3.ogg" }
  60 };
  61
  62 audio_clip audio_footsteps_grass[] = {
  63  {.path = "sound/step_bush0.ogg" },
  64  {.path = "sound/step_bush1.ogg" },
  65  {.path = "sound/step_bush2.ogg" },
  66  {.path = "sound/step_bush3.ogg" },
  67  {.path = "sound/step_bush4.ogg" },
  68  {.path = "sound/step_bush5.ogg" }
  69 };
  70
  71 audio_clip audio_footsteps_wood[] = {
  72  {.path = "sound/step_wood0.ogg" },
  73  {.path = "sound/step_wood1.ogg" },
  74  {.path = "sound/step_wood2.ogg" },
  75  {.path = "sound/step_wood3.ogg" },
  76  {.path = "sound/step_wood4.ogg" },
  77  {.path = "sound/step_wood5.ogg" }
  78 };
  79
  80 audio_clip audio_lands[] = {
  81    { .path = "sound/land0.ogg" },
  82    { .path = "sound/land1.ogg" },
  83    { .path = "sound/land2.ogg" },
  84    { .path = "sound/landsk0.ogg" },
  85    { .path = "sound/landsk1.ogg" },
  86    { .path = "sound/onto.ogg" },
  87    { .path = "sound/outo.ogg" },
  88 };
  89
  90 audio_clip audio_water[] = {
  91    { .path = "sound/wave0.ogg" },
  92    { .path = "sound/wave1.ogg" },
  93    { .path = "sound/wave2.ogg" },
  94    { .path = "sound/wave3.ogg" },
  95    { .path = "sound/wave4.ogg" },
  96    { .path = "sound/wave5.ogg" }
  97 };
  98
  99 audio_clip audio_grass[] = {
 100    { .path = "sound/grass0.ogg" },
 101    { .path = "sound/grass1.ogg" },
 102    { .path = "sound/grass2.ogg" },
 103    { .path = "sound/grass3.ogg" },
 104 };
 105
 106 audio_clip audio_ambience[] =
 107 {
 108    { .path="sound/town_generic.ogg" }
 109 };
 110
 111 audio_clip audio_gate_pass = {
 112    .path = "sound/gate_pass.ogg"
 113 };
 114
 115 audio_clip audio_gate_lap = {
 116    .path = "sound/gate_lap.ogg"
 117 };
 118
 119 audio_clip audio_gate_ambient = {
 120 .path = "sound/gate_ambient.ogg"
 121 };
 122
 123 #if 0
 124 audio_player ambient_player =
 125 {
 126    .name = "Ambience"
 127 };
 128
 129 audio_player audio_rewind_player =
 130 {
 131    .name = "Rewind"
 132 };
 133 #endif
 134
 135 audio_clip audio_rewind[] = {
 136 { .path = "sound/rewind_start.ogg" },
 137 { .path = "sound/rewind_end_1.5.ogg" },
 138 { .path = "sound/rewind_end_2.5.ogg" },
 139 { .path = "sound/rewind_end_6.5.ogg" },
 140 { .path = "sound/rewind_clack.ogg" },
 141 };
 142
 143 audio_clip audio_ui[] = {
 144    { .path = "sound/ui_click.ogg" },
 145    { .path = "sound/ui_ding.ogg" },
 146 };
 147
 148 audio_clip audio_music[] = {
 149    { .path = "sound/song.ogg", .flags = k_audio_format_vorbis },
 150    { .path = "sound/skate.ogg", .flags = k_audio_format_vorbis },
 151 };
 152
 153 #if 0
 154 audio_player ambient_sprites[4] =
 155 {
 156    { .name = "Ambient Sprites 0" },
 157    { .name = "Ambient Sprites 1" },
 158    { .name = "Ambient Sprites 2" },
 159    { .name = "Ambient Sprites 3" },
 160 };
 161
 162 audio_player audio_player0 =
 163 {
 164    .name = "Player0",
 165 };
 166
 167 audio_player audio_player1 =
 168 {
 169    .name = "Player1",
 170 };
 171
 172 audio_player audio_player2 =
 173 {
 174    .name = "Player2",
 175 };
 176
 177 audio_player audio_player3 =
 178 {
 179    .name = "Player3",
 180 };
 181
 182 audio_player audio_player4 =
 183 {
 184    .name = "Player4",
 185 };
 186
 187 audio_player audio_player_extra =
 188 {
 189    .name = "PlayerInst"
 190 };
 191
 192 audio_player audio_player_gate =
 193 {
 194    .name = "Gate"
 195 };
 196 #endif
 197
 198 VG_STATIC void audio_init(void)
 199 {
 200 #if 0
 201    audio_player_init( &audio_player0 );
 202    audio_player_init( &audio_player1 );
 203    audio_player_init( &audio_player2 );
 204    audio_player_init( &audio_player3 );
 205    audio_player_init( &audio_player4 );
 206    audio_player_init( &audio_player_gate );
 207    audio_player_init( &ambient_player );
 208    audio_player_init( &ambient_sprites[0] );
 209    audio_player_init( &ambient_sprites[1] );
 210    audio_player_init( &ambient_sprites[2] );
 211    audio_player_init( &ambient_sprites[3] );
 212    audio_player_init( &audio_player_extra );
 213    audio_player_init( &audio_rewind_player );
 214 #endif
 215
 216    audio_clip_loadn( audio_board, vg_list_size(audio_board), NULL );
 217    audio_clip_loadn( audio_taps, vg_list_size(audio_taps), NULL );
 218    audio_clip_loadn( audio_hits, vg_list_size(audio_hits), NULL );
 219    audio_clip_loadn( audio_ambience, vg_list_size(audio_ambience), NULL );
 220    audio_clip_loadn( &audio_splash, 1, NULL );
 221    audio_clip_loadn( &audio_gate_pass, 1, NULL );
 222    audio_clip_loadn( &audio_gate_lap, 1, NULL );
 223    audio_clip_loadn( &audio_gate_ambient, 1, NULL );
 224    audio_clip_loadn( audio_music, vg_list_size(audio_music), NULL );
 225
 226    audio_clip_loadn( audio_jumps, vg_list_size(audio_jumps), NULL );
 227    audio_clip_loadn( audio_lands, vg_list_size(audio_lands), NULL );
 228    audio_clip_loadn( audio_water, vg_list_size(audio_water), NULL );
 229    audio_clip_loadn( audio_grass, vg_list_size(audio_grass), NULL );
 230    audio_clip_loadn( audio_footsteps, vg_list_size(audio_footsteps), NULL );
 231    audio_clip_loadn( audio_footsteps_grass,
 232                      vg_list_size(audio_footsteps_grass), NULL );
 233    audio_clip_loadn( audio_footsteps_wood,
 234                      vg_list_size(audio_footsteps_wood), NULL );
 235    audio_clip_loadn( audio_rewind, vg_list_size(audio_rewind), NULL );
 236    audio_clip_loadn( audio_ui, vg_list_size(audio_ui), NULL );
 237
 238 #if 0
 239    audio_lock();
 240    u32 flags = AUDIO_FLAG_LOOP|AUDIO_FLAG_SPACIAL_3D;
 241
 242    audio_player_set_flags( &audio_player0, flags );
 243    audio_player_set_flags( &audio_player1, flags );
 244    audio_player_set_flags( &audio_player2, flags );
 245    audio_player_set_flags( &audio_player4, flags );
 246    audio_player_set_flags( &audio_player_gate, flags );
 247    audio_player_set_flags( &audio_player3, AUDIO_FLAG_LOOP );
 248    audio_player_set_flags( &ambient_player, AUDIO_FLAG_LOOP );
 249    audio_player_set_flags( &ambient_sprites[0], AUDIO_FLAG_SPACIAL_3D );
 250    audio_player_set_flags( &ambient_sprites[1], AUDIO_FLAG_SPACIAL_3D );
 251    audio_player_set_flags( &ambient_sprites[2], AUDIO_FLAG_SPACIAL_3D );
 252    audio_player_set_flags( &ambient_sprites[3], AUDIO_FLAG_SPACIAL_3D );
 253
 254    audio_player_set_vol( &ambient_player, 1.0f );
 255    audio_player_set_vol( &audio_player_gate, 0.0f );
 256    audio_player_set_vol( &audio_player_extra, 1.0f );
 257    audio_player_set_vol( &audio_rewind_player, 0.2f );
 258    audio_player_set_flags( &audio_rewind_player, 0x00 );
 259
 260    audio_player_playclip( &audio_player0, &audio_board[0] );
 261    audio_player_playclip( &audio_player1, &audio_board[1] );
 262    audio_player_playclip( &audio_player2, &audio_board[2] );
 263    audio_player_playclip( &audio_player3, &audio_board[3] );
 264    audio_player_playclip( &audio_player4, &audio_board[4] );
 265    audio_player_playclip( &ambient_player, &audio_ambience[0] );
 266    audio_player_playclip( &audio_player_gate, &audio_gate_ambient );
 267
 268    audio_unlock();
 269 #endif
 270
 271    vg_var_push( (struct vg_var){
 272       .name = "aud_debug_soundscape",
 273       .data = &k_audio_debug_soundscape,
 274       .data_type = k_var_dtype_i32,
 275       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 276       .persistent = 1
 277    });
 278
 279    vg_var_push( (struct vg_var){
 280       .name = "aud_occlusion_rate",
 281       .data = &k_audio_occlusion_rate,
 282       .data_type = k_var_dtype_f32,
 283       .opt_f32 = { .clamp = 0 },
 284       .persistent = 1
 285    });
 286
 287    audio_lock();
 288    audio_set_lfo_wave( 0, k_lfo_polynomial_bipolar, 80.0f );
 289    audio_set_lfo_frequency( 0, 20.0f );
 290    audio_unlock();
 291 }
 292
 293 VG_STATIC void audio_update(void)
 294 {
 295 #if 0
 296    static u32 flapflop = 0x00;
 297    static audio_channel *channel = NULL;
 298
 299    u32 next = floorf( vg.time / 0.1f );
 300
 301    if( flapflop != next )
 302    {
 303       flapflop = next;
 304
 305       audio_lock();
 306       channel = audio_channel_crossfade( channel,
 307                                          &audio_music[ next & 0x1 ], 0.05f,
 308                                          AUDIO_FLAG_LOOP|AUDIO_FLAG_SPACIAL_3D
 309             );
 310       channel = audio_channel_set_spacial( channel,
 311                                            (v3f){ -22.3f, 60.1f, -52.7f },
 312                                            50.0f );
 313
 314       audio_channel_sidechain_lfo( channel, 0, 1.0f );
 315       audio_unlock();
 316    }
 317 #endif
 318 }
 319
 320 VG_STATIC void audio_free(void)
 321 {
 322    /* TODO! */
 323    vg_warn( "UNIMPLEMENTED: audio_free()\n" );
 324 }
 325
 326 VG_STATIC void audio_sample_occlusion( v3f origin )
 327 {
 328    float d = 0.0f,
 329          sample_dist = 880.0f;
 330
 331    int sample_count = 8;
 332
 333    int lv = 0;
 334    v3f last;
 335    v3_zero(last);
 336
 337    world_instance *world = get_active_world();
 338
 339    for( int i=0; i<sample_count; i++ )
 340    {
 341       v3f dir;
 342       vg_rand_dir( dir );
 343
 344       ray_hit contact;
 345       contact.dist = 15.0f;
 346
 347       if( ray_world( world, origin, dir, &contact ) )
 348       {
 349          d += contact.dist;
 350
 351 #if 0
 352          vg_line( origin, contact.pos, 0xff0000ff );
 353          vg_line_pt3( contact.pos, 0.1f, 0xff0000ff );
 354
 355          if( lv )
 356             vg_line( contact.pos, last, 0xffffffff );
 357 #endif
 358
 359          v3_copy( contact.pos, last );
 360          lv = 1;
 361       }
 362       else
 363       {
 364          v3f p1;
 365          v3_muladds( origin, dir, sample_dist, p1 );
 366
 367 #if 0
 368          vg_line( origin, p1, 0xffcccccc );
 369 #endif
 370
 371          d += sample_dist;
 372          lv = 0;
 373       }
 374
 375    }
 376
 377    float occlusion = 1.0f - (d * (1.0f/(sample_dist*(float)sample_count))),
 378          rate = VG_TIMESTEP_FIXED * k_audio_occlusion_rate,
 379          target = powf( vg_maxf(occlusion,0.0f), 6.0f );
 380    audio_occlusion_current = vg_lerpf( audio_occlusion_current, target, rate );
 381 }
 382
 383 enum audio_sprite_type
 384 {
 385    k_audio_sprite_type_none,
 386    k_audio_sprite_type_grass,
 387    k_audio_sprite_type_water
 388 };
 389
 390 /*
 391  * Trace out a random point, near the player to try and determine water areas
 392  */
 393 VG_STATIC enum audio_sprite_type audio_sample_sprite_random( v3f origin,
 394                                                              v3f output )
 395 {
 396    v3f chance = { (vg_randf()-0.5f) * 30.0f,
 397                   8.0f,
 398                   (vg_randf()-0.5f) * 30.0f };
 399
 400    v3f pos;
 401    v3_add( chance, origin, pos );
 402
 403    ray_hit contact;
 404    contact.dist = vg_minf( 16.0f, pos[1] );
 405
 406    world_instance *world = get_active_world();
 407
 408    if( ray_world( world, pos, (v3f){0.0f,-1.0f,0.0f}, &contact ) ){
 409       struct world_surface *mat = ray_hit_surface( world, &contact );
 410
 411       if( mat->info.surface_prop == k_surface_prop_grass){
 412          v3_copy( contact.pos, output );
 413          return k_audio_sprite_type_grass;
 414       }
 415       else{
 416 #if 0
 417          vg_line( pos, contact.pos, 0xff0000ff );
 418          vg_line_pt3( contact.pos, 0.3f, 0xff0000ff );
 419 #endif
 420          return k_audio_sprite_type_none;
 421       }
 422    }
 423
 424    output[0] = pos[0];
 425    output[1] = 0.0f;
 426    output[2] = pos[2];
 427
 428    if( world->water.enabled )
 429       return k_audio_sprite_type_water;
 430    else
 431       return k_audio_sprite_type_none;
 432 }
 433
 434 VG_STATIC void audio_debug_soundscapes(void)
 435 {
 436    if( !k_audio_debug_soundscape ) return;
 437
 438    char buf[64];
 439    snprintf( buf, 31, "occlusion: %.5f", audio_occlusion_current );
 440
 441    vg_uictx.cursor[0] = 450;
 442    vg_uictx.cursor[1] = 10;
 443    vg_uictx.cursor[2] = audio_occlusion_current * 200.0f;
 444    vg_uictx.cursor[3] = 20;
 445
 446    ui_fill_rect( vg_uictx.cursor, 0x55cccccc );
 447    ui_text( vg_uictx.cursor, buf, 1, 0 );
 448 }
 449
 450 #endif /* AUDIO_H */