audio.h

   1 #include "common.h"
   2
   3 #ifndef AUDIO_H
   4 #define AUDIO_H
   5
   6 #include "world.h"
   7
   8 static float audio_occlusion_current = 0.0f,
   9              k_audio_occlusion_rate  = 1.0f;
  10
  11 static int   k_audio_debug_soundscape = 0;
  12
  13 audio_clip audio_board[] =
  14 {
  15    {.path="sound/skate.ogg", .source_mode=k_audio_source_compressed },
  16    {.path="sound/wheel.ogg", .source_mode=k_audio_source_compressed },
  17    {.path="sound/slide.ogg", .source_mode=k_audio_source_compressed },
  18    {.path="sound/reverb.ogg",.source_mode=k_audio_source_compressed }
  19 };
  20
  21 audio_clip audio_ding =
  22 { .path = "sound/ding.ogg", .source_mode=k_audio_source_compressed };
  23
  24 audio_clip audio_jumps[] = {
  25    { .path = "sound/jump0.ogg", .source_mode=k_audio_source_compressed, },
  26    { .path = "sound/jump1.ogg", .source_mode=k_audio_source_compressed, },
  27    { .path = "sound/jump2.ogg", .source_mode=k_audio_source_compressed, },
  28    { .path = "sound/jump3.ogg", .source_mode=k_audio_source_compressed, }
  29 };
  30
  31 audio_clip audio_footsteps[] = {
  32  {.path = "sound/step_concrete0.ogg", .source_mode=k_audio_source_compressed,},
  33  {.path = "sound/step_concrete1.ogg", .source_mode=k_audio_source_compressed,},
  34  {.path = "sound/step_concrete2.ogg", .source_mode=k_audio_source_compressed,},
  35  {.path = "sound/step_concrete3.ogg", .source_mode=k_audio_source_compressed,}
  36 };
  37
  38 audio_clip audio_lands[] = {
  39    { .path = "sound/revert0.ogg", .source_mode=k_audio_source_compressed },
  40    { .path = "sound/revert1.ogg", .source_mode=k_audio_source_compressed },
  41    { .path = "sound/revert2.ogg", .source_mode=k_audio_source_compressed },
  42    { .path = "sound/revert3.ogg", .source_mode=k_audio_source_compressed },
  43    { .path = "sound/revert4.ogg", .source_mode=k_audio_source_compressed }
  44 };
  45
  46 audio_clip audio_ambience[] =
  47 {
  48    {.path="sound/town_generic.ogg",
  49       .source_mode=k_audio_source_compressed }
  50 };
  51
  52 audio_clip audio_gate_pass = {
  53    .path = "sound/gate_pass.ogg", .source_mode=k_audio_source_compressed
  54 };
  55
  56 audio_clip audio_gate_lap = {
  57    .path = "sound/gate_lap.ogg", .source_mode=k_audio_source_compressed
  58 };
  59
  60 audio_clip audio_gate_ambient = {
  61 .path = "sound/gate_ambient.ogg", .source_mode=k_audio_source_compressed
  62 };
  63
  64 audio_player ambient_player =
  65 {
  66    .name = "Ambience"
  67 };
  68
  69 audio_player audio_player0 =
  70 {
  71    .name = "Player0",
  72 };
  73
  74 audio_player audio_player1 =
  75 {
  76    .name = "Player1",
  77 };
  78
  79 audio_player audio_player2 =
  80 {
  81    .name = "Player2",
  82 };
  83
  84 audio_player audio_player3 =
  85 {
  86    .name = "Player3",
  87 };
  88
  89 audio_player audio_player_extra =
  90 {
  91    .name = "PlayerInst"
  92 };
  93
  94 audio_player audio_player_gate =
  95 {
  96    .name = "Gate"
  97 };
  98
  99 static void audio_init(void)
 100 {
 101    audio_player_init( &audio_player0 );
 102    audio_player_init( &audio_player1 );
 103    audio_player_init( &audio_player2 );
 104    audio_player_init( &audio_player3 );
 105    audio_player_init( &audio_player_gate );
 106    audio_player_init( &ambient_player );
 107    audio_player_init( &audio_player_extra );
 108
 109    audio_clip_loadn( audio_board, vg_list_size(audio_board) );
 110    audio_clip_loadn( audio_ambience, vg_list_size(audio_ambience) );
 111    audio_clip_loadn( &audio_ding, 1 );
 112    audio_clip_loadn( &audio_gate_pass, 1 );
 113    audio_clip_loadn( &audio_gate_lap, 1 );
 114    audio_clip_loadn( &audio_gate_ambient, 1 );
 115    audio_clip_loadn( audio_jumps, vg_list_size(audio_jumps) );
 116    audio_clip_loadn( audio_lands, vg_list_size(audio_lands) );
 117    audio_clip_loadn( audio_footsteps, vg_list_size(audio_footsteps) );
 118
 119    audio_lock();
 120    u32 flags = AUDIO_FLAG_LOOP|AUDIO_FLAG_SPACIAL_3D;
 121
 122    audio_player_set_flags( &audio_player0, flags );
 123    audio_player_set_flags( &audio_player1, flags );
 124    audio_player_set_flags( &audio_player2, flags );
 125    audio_player_set_flags( &audio_player_gate, flags );
 126    audio_player_set_flags( &audio_player3, AUDIO_FLAG_LOOP );
 127    audio_player_set_flags( &ambient_player, AUDIO_FLAG_LOOP );
 128    audio_player_set_vol( &ambient_player, 1.0f );
 129    audio_player_set_vol( &audio_player_gate, 5.0f );
 130    audio_player_set_vol( &audio_player_extra, 1.0f );
 131
 132    audio_player_playclip( &audio_player0, &audio_board[0] );
 133    audio_player_playclip( &audio_player1, &audio_board[1] );
 134    audio_player_playclip( &audio_player2, &audio_board[2] );
 135    audio_player_playclip( &audio_player3, &audio_board[3] );
 136    audio_player_playclip( &ambient_player, &audio_ambience[0] );
 137    audio_player_playclip( &audio_player_gate, &audio_gate_ambient );
 138
 139    audio_unlock();
 140
 141    vg_convar_push( (struct vg_convar){
 142       .name = "aud_debug_soundscape",
 143       .data = &k_audio_debug_soundscape,
 144       .data_type = k_convar_dtype_i32,
 145       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 146       .persistent = 1
 147    });
 148
 149    vg_convar_push( (struct vg_convar){
 150       .name = "aud_occlusion_rate",
 151       .data = &k_audio_occlusion_rate,
 152       .data_type = k_convar_dtype_f32,
 153       .opt_f32 = { .clamp = 0 },
 154       .persistent = 1
 155    });
 156 }
 157
 158 static void audio_free(void)
 159 {
 160 }
 161
 162 static void audio_sample_occlusion( v3f origin )
 163 {
 164    float d = 0.0f,
 165          sample_dist = 880.0f;
 166
 167    int sample_count = 8;
 168
 169    int lv = 0;
 170    v3f last;
 171
 172    for( int i=0; i<sample_count; i++ )
 173    {
 174       v3f dir;
 175       vg_rand_dir( dir );
 176
 177       ray_hit contact;
 178       contact.dist = 15.0f;
 179
 180       if( ray_world( origin, dir, &contact ) )
 181       {
 182          d += contact.dist;
 183
 184          vg_line( origin, contact.pos, 0xff0000ff );
 185          vg_line_pt3( contact.pos, 0.1f, 0xff0000ff );
 186
 187          if( lv )
 188             vg_line( contact.pos, last, 0xffffffff );
 189          v3_copy( contact.pos, last );
 190          lv = 1;
 191       }
 192       else
 193       {
 194          v3f p1;
 195          v3_muladds( origin, dir, sample_dist, p1 );
 196          vg_line( origin, p1, 0xffcccccc );
 197
 198          d += sample_dist;
 199          lv = 0;
 200       }
 201
 202    }
 203
 204    float occlusion = 1.0f - (d * (1.0f/(sample_dist*(float)sample_count))),
 205          rate = ktimestep * k_audio_occlusion_rate,
 206          target = powf( occlusion, 6.0f );
 207    audio_occlusion_current = vg_lerpf( audio_occlusion_current, target, rate );
 208 }
 209
 210 static void audio_debug_soundscapes(void)
 211 {
 212    if( !k_audio_debug_soundscape ) return;
 213
 214    char buf[64];
 215    snprintf( buf, 31, "occlusion: %.5f", audio_occlusion_current );
 216
 217    ui_global_ctx.cursor[0] = 450;
 218    ui_global_ctx.cursor[1] = 10;
 219    ui_global_ctx.cursor[2] = audio_occlusion_current * 200.0f;
 220    ui_global_ctx.cursor[3] = 20;
 221
 222    gui_fill_rect( ui_global_ctx.cursor, 0x55cccccc );
 223    gui_text( ui_global_ctx.cursor, buf, 1, 0 );
 224 }
 225
 226 #endif /* AUDIO_H */