X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=audio.h;h=448906be07e9af05c101b3c07766578dc7612f4d;hb=refs%2Fheads%2Frigidbody;hp=b3640bda8a386dc3cdf88bde89468ddbd3bfc073;hpb=620beae94b362ae4d4c42e5ba3329a6211d67a8f;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/audio.h b/audio.h
index b3640bd..448906b 100644
--- a/audio.h
+++ b/audio.h
@@ -9,11 +9,6 @@
 
 #include "world.h"
 
-VG_STATIC float audio_occlusion_current = 0.0f,
-             k_audio_occlusion_rate  = 1.0f;
-
-VG_STATIC int k_audio_debug_soundscape = 0;
-
 audio_clip audio_board[] =
 {
    { .path="sound/skate_hpf.ogg" },
@@ -35,6 +30,14 @@ audio_clip audio_taps[] =
    { .path="sound/tap3.ogg" }
 };
 
+audio_clip audio_flips[] =
+{
+   { .path="sound/lf0.ogg" },
+   { .path="sound/lf1.ogg" },
+   { .path="sound/lf2.ogg" },
+   { .path="sound/lf3.ogg" },
+};
+
 audio_clip audio_hits[] =
 {
    { .path="sound/hit0.ogg" },
@@ -120,18 +123,6 @@ audio_clip audio_gate_ambient = {
 .path = "sound/gate_ambient.ogg"
 };
 
-#if 0
-audio_player ambient_player =
-{
-   .name = "Ambience"
-};
-
-audio_player audio_rewind_player =
-{
-   .name = "Rewind"
-};
-#endif
-
 audio_clip audio_rewind[] = {
 { .path = "sound/rewind_start.ogg" },
 { .path = "sound/rewind_end_1.5.ogg" },
@@ -143,85 +134,75 @@ audio_clip audio_rewind[] = {
 audio_clip audio_ui[] = {
    { .path = "sound/ui_click.ogg" },
    { .path = "sound/ui_ding.ogg" },
+   { .path = "sound/teleport.ogg" }
 };
 
-audio_clip audio_music[] = {
-   { .path = "sound/song.ogg", .flags = k_audio_format_vorbis },
-   { .path = "sound/skate.ogg", .flags = k_audio_format_vorbis },
+audio_clip audio_challenge[] = {
+   { .path = "sound/objective0.ogg" },
+   { .path = "sound/objective1.ogg" },
+   { .path = "sound/objective_win.ogg" },
+   { .path = "sound/ui_good.ogg" },
+   { .path = "sound/ui_inf.ogg" },
+   { .path = "sound/ui_ok.ogg" },
+   { .path = "sound/objective_fail.ogg" }
 };
 
-#if 0
-audio_player ambient_sprites[4] =
-{
-   { .name = "Ambient Sprites 0" },
-   { .name = "Ambient Sprites 1" },
-   { .name = "Ambient Sprites 2" },
-   { .name = "Ambient Sprites 3" },
-};
+struct air_synth_data {
+   f32 speed;
 
-audio_player audio_player0 =
-{
-   .name = "Player0",
-};
+   /* internal */
+   f32 t;
+   struct dsp_biquad lpf;
+   SDL_SpinLock sl;
+}
+static air_data;
 
-audio_player audio_player1 =
-{
-   .name = "Player1",
-};
+static void audio_air_synth_get_samples( void *_data, f32 *buf, u32 count ){
+   struct air_synth_data *data = _data;
 
-audio_player audio_player2 =
-{
-   .name = "Player2",
-};
+   SDL_AtomicLock( &data->sl );
+   f32 spd = data->speed;
+   SDL_AtomicUnlock( &data->sl );
 
-audio_player audio_player3 =
-{
-   .name = "Player3",
-};
+   f32 s0  = sinf(data->t*2.0f),
+       s1  = sinf(data->t*0.43f),
+       s2  = sinf(data->t*1.333f),
+       sm  = vg_clampf( data->speed / 45.0f, 0, 1 ),
+       ft  = (s0*s1*s2)*0.5f+0.5f,
+       f   = vg_lerpf( 200.0f, 1200.0f, sm*0.7f + ft*0.3f ),
+       vol = 0.25f * sm;
 
-audio_player audio_player4 =
-{
-   .name = "Player4",
-};
+   dsp_init_biquad_butterworth_lpf( &data->lpf, f );
 
-audio_player audio_player_extra =
-{
-   .name = "PlayerInst"
+   for( u32 i=0; i<count; i ++ ){
+      f32 v = (vg_randf64(&vg_dsp.rand) * 2.0f - 1.0f) * vol;
+      v = dsp_biquad_process( &data->lpf, v );
+
+      buf[i*2+0] = v;
+      buf[i*2+1] = v;
+   }
+
+   data->t += (f32)(count)/44100.0f;
 };
 
-audio_player audio_player_gate =
-{
-   .name = "Gate"
+static audio_clip air_synth = {
+   .flags = k_audio_format_gen,
+   .size = 0,
+   .func = audio_air_synth_get_samples,
+   .data = &air_data
 };
-#endif
 
-VG_STATIC void audio_init(void)
+static void audio_init(void)
 {
-#if 0
-   audio_player_init( &audio_player0 );
-   audio_player_init( &audio_player1 );
-   audio_player_init( &audio_player2 );
-   audio_player_init( &audio_player3 );
-   audio_player_init( &audio_player4 );
-   audio_player_init( &audio_player_gate );
-   audio_player_init( &ambient_player );
-   audio_player_init( &ambient_sprites[0] );
-   audio_player_init( &ambient_sprites[1] );
-   audio_player_init( &ambient_sprites[2] );
-   audio_player_init( &ambient_sprites[3] );
-   audio_player_init( &audio_player_extra );
-   audio_player_init( &audio_rewind_player );
-#endif
-
    audio_clip_loadn( audio_board, vg_list_size(audio_board), NULL );
    audio_clip_loadn( audio_taps, vg_list_size(audio_taps), NULL );
+   audio_clip_loadn( audio_flips, vg_list_size(audio_flips), NULL );
    audio_clip_loadn( audio_hits, vg_list_size(audio_hits), NULL );
    audio_clip_loadn( audio_ambience, vg_list_size(audio_ambience), NULL );
    audio_clip_loadn( &audio_splash, 1, NULL );
    audio_clip_loadn( &audio_gate_pass, 1, NULL );
    audio_clip_loadn( &audio_gate_lap, 1, NULL );
    audio_clip_loadn( &audio_gate_ambient, 1, NULL );
-   audio_clip_loadn( audio_music, vg_list_size(audio_music), NULL );
 
    audio_clip_loadn( audio_jumps, vg_list_size(audio_jumps), NULL );
    audio_clip_loadn( audio_lands, vg_list_size(audio_lands), NULL );
@@ -234,152 +215,25 @@ VG_STATIC void audio_init(void)
                      vg_list_size(audio_footsteps_wood), NULL );
    audio_clip_loadn( audio_rewind, vg_list_size(audio_rewind), NULL );
    audio_clip_loadn( audio_ui, vg_list_size(audio_ui), NULL );
-
-#if 0
-   audio_lock();
-   u32 flags = AUDIO_FLAG_LOOP|AUDIO_FLAG_SPACIAL_3D;
-
-   audio_player_set_flags( &audio_player0, flags );
-   audio_player_set_flags( &audio_player1, flags );
-   audio_player_set_flags( &audio_player2, flags );
-   audio_player_set_flags( &audio_player4, flags );
-   audio_player_set_flags( &audio_player_gate, flags );
-   audio_player_set_flags( &audio_player3, AUDIO_FLAG_LOOP );
-   audio_player_set_flags( &ambient_player, AUDIO_FLAG_LOOP );
-   audio_player_set_flags( &ambient_sprites[0], AUDIO_FLAG_SPACIAL_3D );
-   audio_player_set_flags( &ambient_sprites[1], AUDIO_FLAG_SPACIAL_3D );
-   audio_player_set_flags( &ambient_sprites[2], AUDIO_FLAG_SPACIAL_3D );
-   audio_player_set_flags( &ambient_sprites[3], AUDIO_FLAG_SPACIAL_3D );
-
-   audio_player_set_vol( &ambient_player, 1.0f );
-   audio_player_set_vol( &audio_player_gate, 0.0f );
-   audio_player_set_vol( &audio_player_extra, 1.0f );
-   audio_player_set_vol( &audio_rewind_player, 0.2f );
-   audio_player_set_flags( &audio_rewind_player, 0x00 );
-
-   audio_player_playclip( &audio_player0, &audio_board[0] );
-   audio_player_playclip( &audio_player1, &audio_board[1] );
-   audio_player_playclip( &audio_player2, &audio_board[2] );
-   audio_player_playclip( &audio_player3, &audio_board[3] );
-   audio_player_playclip( &audio_player4, &audio_board[4] );
-   audio_player_playclip( &ambient_player, &audio_ambience[0] );
-   audio_player_playclip( &audio_player_gate, &audio_gate_ambient );
-
-   audio_unlock();
-#endif
-
-   vg_var_push( (struct vg_var){
-      .name = "aud_debug_soundscape",
-      .data = &k_audio_debug_soundscape,
-      .data_type = k_var_dtype_i32,
-      .opt_i32 = { .min=0, .max=1, .clamp=0 },
-      .persistent = 1
-   });
-
-   vg_var_push( (struct vg_var){
-      .name = "aud_occlusion_rate",
-      .data = &k_audio_occlusion_rate,
-      .data_type = k_var_dtype_f32,
-      .opt_f32 = { .clamp = 0 },
-      .persistent = 1
-   });
+   audio_clip_loadn( audio_challenge, vg_list_size(audio_challenge), NULL );
 
    audio_lock();
    audio_set_lfo_wave( 0, k_lfo_polynomial_bipolar, 80.0f );
    audio_set_lfo_frequency( 0, 20.0f );
-   audio_unlock();
-}
 
-VG_STATIC void audio_update(void)
-{
-#if 0
-   static u32 flapflop = 0x00;
-   static audio_channel *channel = NULL;
-
-   u32 next = floorf( vg.time / 0.1f );
-
-   if( flapflop != next )
-   {
-      flapflop = next;
-
-      audio_lock();
-      channel = audio_channel_crossfade( channel, 
-                                         &audio_music[ next & 0x1 ], 0.05f,
-                                         AUDIO_FLAG_LOOP|AUDIO_FLAG_SPACIAL_3D 
-            );
-      channel = audio_channel_set_spacial( channel,
-                                           (v3f){ -22.3f, 60.1f, -52.7f },
-                                           50.0f );
-
-      audio_channel_sidechain_lfo( channel, 0, 1.0f );
-      audio_unlock();
-   }
-#endif
+   skaterift.aud_air = audio_get_first_idle_channel();
+   if( skaterift.aud_air ) 
+      audio_channel_init( skaterift.aud_air, &air_synth, 0 );
+
+   audio_unlock();
 }
 
-VG_STATIC void audio_free(void)
+static void audio_free(void)
 {
    /* TODO! */
    vg_warn( "UNIMPLEMENTED: audio_free()\n" );
 }
 
-VG_STATIC void audio_sample_occlusion( v3f origin )
-{
-   float d = 0.0f,
-         sample_dist = 880.0f;
-
-   int sample_count = 8;
-
-   int lv = 0;
-   v3f last;
-   v3_zero(last);
-
-   world_instance *world = get_active_world();
-
-   for( int i=0; i<sample_count; i++ )
-   {
-      v3f dir;
-      vg_rand_dir( dir );
-
-      ray_hit contact;
-      contact.dist = 15.0f;
-      
-      if( ray_world( world, origin, dir, &contact ) )
-      {
-         d += contact.dist;
-
-#if 0
-         vg_line( origin, contact.pos, 0xff0000ff );
-         vg_line_pt3( contact.pos, 0.1f, 0xff0000ff );
-
-         if( lv )
-            vg_line( contact.pos, last, 0xffffffff );
-#endif
-
-         v3_copy( contact.pos, last );
-         lv = 1;
-      }
-      else
-      {
-         v3f p1;
-         v3_muladds( origin, dir, sample_dist, p1 );
-
-#if 0
-         vg_line( origin, p1, 0xffcccccc );
-#endif
-
-         d += sample_dist;
-         lv = 0;
-      }
-
-   }
-
-   float occlusion = 1.0f - (d * (1.0f/(sample_dist*(float)sample_count))),
-         rate = VG_TIMESTEP_FIXED * k_audio_occlusion_rate,
-         target = powf( vg_maxf(occlusion,0.0f), 6.0f );
-   audio_occlusion_current = vg_lerpf( audio_occlusion_current, target, rate );
-}
-
 enum audio_sprite_type 
 {
    k_audio_sprite_type_none,
@@ -387,64 +241,49 @@ enum audio_sprite_type
    k_audio_sprite_type_water
 };
 
-/*
- * Trace out a random point, near the player to try and determine water areas
- */
-VG_STATIC enum audio_sprite_type audio_sample_sprite_random( v3f origin, 
-                                                             v3f output )
+static void audio_ambient_sprite_play( v3f co, audio_clip *clip )
 {
-   v3f chance = { (vg_randf()-0.5f) * 30.0f, 
-                  8.0f,
-                  (vg_randf()-0.5f) * 30.0f };
-   
-   v3f pos;
-   v3_add( chance, origin, pos );
-
-   ray_hit contact;
-   contact.dist = vg_minf( 16.0f, pos[1] );
-
-   world_instance *world = get_active_world();
-   
-   if( ray_world( world, pos, (v3f){0.0f,-1.0f,0.0f}, &contact ) ){
-      struct world_surface *mat = ray_hit_surface( world, &contact );
-
-      if( mat->info.surface_prop == k_surface_prop_grass){
-         v3_copy( contact.pos, output );
-         return k_audio_sprite_type_grass;
-      }
-      else{
-#if 0
-         vg_line( pos, contact.pos, 0xff0000ff );
-         vg_line_pt3( contact.pos, 0.3f, 0xff0000ff );
-#endif
-         return k_audio_sprite_type_none;
-      }
+   audio_lock();
+   u16 group_id = 0xfff0;
+   audio_channel *ch = audio_get_group_idle_channel( group_id, 4 );
+
+   if( ch ){
+      audio_channel_init( ch, clip, AUDIO_FLAG_SPACIAL_3D );
+      audio_channel_group( ch, group_id );
+      audio_channel_set_spacial( ch, co, 80.0f );
+      audio_channel_edit_volume( ch, 1.0f, 1 );
+      ch = audio_relinquish_channel( ch );
    }
-
-   output[0] = pos[0];
-   output[1] = 0.0f;
-   output[2] = pos[2];
-   
-   if( world->water.enabled )
-      return k_audio_sprite_type_water;
-   else
-      return k_audio_sprite_type_none;
+   audio_unlock();
 }
 
-VG_STATIC void audio_debug_soundscapes(void)
+static
+enum audio_sprite_type world_audio_sample_sprite_random(v3f origin, v3f output);
+static void audio_ambient_sprites_update( world_instance *world, v3f co )
 {
-   if( !k_audio_debug_soundscape ) return;
-
-   char buf[64];
-   snprintf( buf, 31, "occlusion: %.5f", audio_occlusion_current );
+   static float accum = 0.0f;
+   accum += vg.time_delta;
 
-   vg_uictx.cursor[0] = 450;
-   vg_uictx.cursor[1] = 10;
-   vg_uictx.cursor[2] = audio_occlusion_current * 200.0f;
-   vg_uictx.cursor[3] = 20;
+   if( accum > 0.1f )
+      accum -= 0.1f;
+   else return;
 
-   ui_fill_rect( vg_uictx.cursor, 0x55cccccc );
-   ui_text( vg_uictx.cursor, buf, 1, 0 );
+   v3f sprite_pos;
+   enum audio_sprite_type sprite_type = 
+      world_audio_sample_sprite_random( co, sprite_pos );
+   
+   if( sprite_type != k_audio_sprite_type_none ){
+      if( sprite_type == k_audio_sprite_type_grass ){
+         audio_ambient_sprite_play( sprite_pos, 
+                                    &audio_grass[vg_randu32(&vg.rand)%4] );
+      }
+      else if( sprite_type == k_audio_sprite_type_water ){
+         if( world->water.enabled ){
+            audio_ambient_sprite_play( sprite_pos, 
+                                       &audio_water[vg_randu32(&vg.rand)%6] );
+         }
+      }
+   }
 }
 
 #endif /* AUDIO_H */