#define STB_VORBIS_MAX_CHANNELS 2
#include "stb/stb_vorbis.h"
-#define SFX_MAX_SYSTEMS 16
-#define SFX_FLAG_ONESHOT 0x1
-#define SFX_FLAG_STEREO 0x2
-#define FADEOUT_LENGTH 441
-#define FADEOUT_DIVISOR (1.f/(float)FADEOUT_LENGTH)
+#define SFX_MAX_SYSTEMS 32
+#define SFX_FLAG_ONESHOT 0x1
+#define SFX_FLAG_STEREO 0x2
+#define SFX_FLAG_REPEAT 0x4
+#define SFX_FLAG_GHOST 0x8
+#define FADEOUT_LENGTH 4410
+#define FADEOUT_DIVISOR (1.f/(float)FADEOUT_LENGTH)
typedef struct sfx_vol_control sfx_vol_control;
typedef struct sfx_system sfx_system;
// Source buffer start
float *source, *replacement;
+ u32 clip_start, clip_end, buffer_length;
+
// Modifiers
sfx_vol_control *vol_src;
float vol;
// Info
- int ch, end, cur, flags;
+ u32 ch, end, cur;
+ u32 flags;
// Effects
- u32 fadeout, fadeout_length, fadeout_cursor;
+ u32 fadeout, fadeout_current;
sfx_system *thread_clone; // Memory of this structure is copied into thread 2
#define SFX_A_FLAG_AUTOSTART 0x1
#define SFX_A_FLAG_AUTOFREE 0x2
+/*
static int sfx_save( sfx_system *sys );
// Asynchronous load-to-system callback
if( !sfx_vorbis_a( strFileName, channels, sfx_vorbis_a_to_c, inf ) )
free( inf );
-}
+}*/
// 0
// ======================================================
-// Mark change to be uploaded to queue system
-static int sfx_save( sfx_system *sys )
+static int sfx_begin_edit( sfx_system *sys )
{
MUTEX_LOCK( sfx_mux_t01 );
-
+
if( sfx_q_len >= SFX_MAX_SYSTEMS )
{
- vg_error( "Warning: No free space in sound queue\n" );
-
MUTEX_UNLOCK( sfx_mux_t01 );
+ vg_warn( "Warning: No free space in sound queue\n" );
return 0;
}
+ return 1;
+}
+
+// Mark change to be uploaded to queue system
+static int sfx_save( sfx_system *sys )
+{
// Mark change in queue
sfx_q[ sfx_q_len ++ ] = sys;
}
}
-#ifndef VYGER_RELEASE
-u32 num_sfx_sets = 0;
-#endif
-
// Shutdown audio device
static void vg_audio_free(void)
{
ma_device_uninit( &g_aud_device );
}
-// (debug) make sure we are shutting down safely
-static void sfx_sys_chkerr(void)
-{
-#ifndef VYGER_RELEASE
- if( num_sfx_sets )
- {
- vg_error( "Leaked %u sfx sets\n", num_sfx_sets );
- }
-#endif
-}
-
// 1
// ======================================================
static sfx_system *sfx_alloc(void)
{
if( sfx_sys_len >= SFX_MAX_SYSTEMS )
- {
- vg_error( "Warning: No free space in sound system\n" );
-
return NULL;
- }
// A conditional is done against this in localization step,
// Needs to be initialized.
while( sfx_q_len --> 0 )
{
sfx_system *src = sfx_q[sfx_q_len];
+ sfx_system *clone;
// This is a 'new' sound if thread_clone not set.
- if( !src->thread_clone || src->flags & SFX_FLAG_ONESHOT )
+ if( !src->thread_clone || (src->flags & SFX_FLAG_ONESHOT) )
{
- src->thread_clone = sfx_alloc();
+ clone = sfx_alloc();
+ if( !clone )
+ break;
+
+ src->thread_clone = clone;
}
+ else
+ {
+ clone = src->thread_clone;
- // run replacement routine if one is waiting
+ // Modifying an active system's cursor spawns a small fadeout ghost system
+ if( clone->cur != src->cur )
+ {
+ sfx_system *ghost_system = sfx_alloc();
+
+ if( !ghost_system )
+ break;
+
+ ghost_system->source = clone->source;
+ ghost_system->ch = clone->ch;
+ ghost_system->end = clone->end;
+ ghost_system->cur = clone->cur;
+ ghost_system->flags = SFX_FLAG_GHOST;
+ ghost_system->fadeout = FADEOUT_LENGTH;
+ ghost_system->fadeout_current = FADEOUT_LENGTH;
+ ghost_system->vol_src = clone->vol_src;
+ ghost_system->name = clone->name;
+ ghost_system->thread_clone = src;
+ }
+ }
+
+ // run replacement routine if one is waiting (todo: what is this?)
if( src->replacement )
{
free( src->source );
src->source = src->replacement;
src->replacement = NULL;
}
-
- src->thread_clone->source = src->source;
// Localize data to thread 1's memory pool
- src->thread_clone->ch = src->ch;
- src->thread_clone->end = src->end;
- src->thread_clone->cur = src->cur;
- src->thread_clone->flags = src->flags;
- src->thread_clone->fadeout = src->fadeout;
- src->thread_clone->fadeout_length = src->fadeout_length;
- src->thread_clone->vol_src = src->vol_src;
- src->thread_clone->name = src->name;
+ clone->source = src->source;
+ clone->ch = src->ch;
+ clone->end = src->end;
+ clone->cur = src->cur;
+ clone->flags = src->flags;
+ clone->vol_src = src->vol_src;
+ clone->name = src->name;
+ clone->fadeout = src->fadeout;
+ clone->fadeout_current = src->fadeout_current;
// loopback pointer, mainly used for persistent sound handles
- src->thread_clone->thread_clone = src;
+ clone->thread_clone = src;
}
sfx_q_len = 0;
{
sfx_system *sys = sfx_sys + i;
- u32 cursor = sys->cur;
- u32 bpos = 0;
-
+ u32 cursor = sys->cur, buffer_pos = 0;
float avgvol = 0.f;
float pcf[2] = { 0.f, 0.0f };
- if( sys->fadeout_cursor != sys->cur )
- sys->fadeout = sys->fadeout_length;
+ u32 frames_write = frameCount;
+ float fadeout_divisor = 1.0f / (float)sys->fadeout;
- while( cursor < vg_min( sys->cur + frameCount, sys->end ) )
+ while( frames_write )
{
- audio_mixer_getsamples( pcf, sys->source, cursor, sys->ch );
+ u32 samples_this_run = VG_MIN( frames_write, sys->end - cursor );
+
+ if( sys->fadeout )
+ {
+ // Force this system to be removed
+ if( sys->fadeout_current == 0 )
+ {
+ sys->flags = SFX_FLAG_GHOST;
+ sys->cur = sys->end;
+ break;
+ }
+
+ samples_this_run = VG_MIN( samples_this_run, sys->fadeout_current );
+ }
- avgvol += fabs( pcf[0] * sys->vol );
- avgvol += fabs( pcf[1] * sys->vol );
+ for( u32 j = 0; j < samples_this_run; j ++ )
+ {
+ audio_mixer_getsamples( pcf, sys->source, cursor, sys->ch );
+
+ float vol = sys->vol;
+
+ if( sys->fadeout )
+ {
+ vol *= (float)sys->fadeout_current * fadeout_divisor;
+ sys->fadeout_current --;
+ }
+
+ if( buffer_pos >= frameCount )
+ {
+ break;
+ }
+
+ pOut32F[ buffer_pos*2+0 ] += pcf[0] * vol;
+ pOut32F[ buffer_pos*2+1 ] += pcf[1] * vol;
+
+ avgvol += fabs( pcf[0] * vol );
+ avgvol += fabs( pcf[1] * vol );
+
+ cursor ++;
+ buffer_pos ++;
+ }
- pOut32F[ bpos*2+0 ] += pcf[0] * sys->vol;
- pOut32F[ bpos*2+1 ] += pcf[1] * sys->vol;
+ frames_write -= samples_this_run;
- // Blend the fadeout cursor in to prevent popping
- if( sys->fadeout )
+ if( sys->flags & SFX_FLAG_REPEAT )
{
- if( sys->fadeout_cursor < sys->end )
+ if( frames_write )
{
- audio_mixer_getsamples( pcf, sys->source, sys->fadeout_cursor, sys->ch );
-
- float mul = (float)sys->fadeout * FADEOUT_DIVISOR;
-
- pOut32F[ bpos*2+0 ] += pcf[0] * sys->vol * mul;
- pOut32F[ bpos*2+1 ] += pcf[1] * sys->vol * mul;
-
- sys->fadeout_cursor ++;
- sys->fadeout --;
+ cursor = 0;
+ continue;
}
- else
- sys->fadeout = 0;
}
- cursor ++;
- bpos ++;
+ sys->cur = cursor;
+ sys->signal_average = avgvol / (float)(buffer_pos*2);
+
+ break;
}
-
- sys->signal_average = avgvol / (float)(bpos*2);
- sys->cur += frameCount;
- sys->fadeout_cursor = sys->cur;
}
// Redistribute sound systems
MUTEX_LOCK( sfx_mux_t01 );
-
- unsigned int idx = 0, wr = 0;
+
+ u32 idx = 0, wr = 0;
while( idx != sfx_sys_len )
{
sfx_system *src = sfx_sys + idx;
-
- // Keep only if cursor is before end
- if( src->cur < src->end )
+
+ // Keep only if cursor is before end or repeating
+ if( src->cur < src->end || (src->flags & SFX_FLAG_REPEAT) )
{
// Correct source pointer on persisitent originals since we shifted ID's
- if( !(src->flags & SFX_FLAG_ONESHOT) )
+ if( !(src->flags & (SFX_FLAG_ONESHOT|SFX_FLAG_GHOST)) )
+ {
src->thread_clone->thread_clone = sfx_sys + wr;
+ }
sfx_sys[ wr ++ ] = sfx_sys[ idx ];
}
else
{
// Clear link on persistent sources (done playing)
- if( !(src->flags & SFX_FLAG_ONESHOT) )
+ if( !(src->flags & (SFX_FLAG_ONESHOT|SFX_FLAG_GHOST)) )
src->thread_clone->thread_clone = NULL;
}
// Load strings into sfx_set's memory
// String layout: "sounda.ogg\0soundb.ogg\0soundc.ogg\0\0"
-void sfx_set_strings( sfx_set *dest, char *strSources, u32 flags, int bAsync )
+static void sfx_set_strings( sfx_set *dest, char *strSources, u32 flags, int bAsync )
{
printf( "Init sfx set\n| start | end | length | name \n" );
vg_info( "finished, numsegments: %u\n", dest->numsegments );
}
-void sfx_set_init( sfx_set *dest, char *sources )
+static void sfx_set_init( sfx_set *dest, char *sources )
{
-#ifndef VYGER_RELEASE
- num_sfx_sets ++;
-#endif
-
if( !sources )
- {
sfx_set_strings( dest, dest->sources, dest->flags, 0 );
- }
else
- {
sfx_set_strings( dest, sources, dest->flags, 0 );
+}
+
+static void sfx_set_play( sfx_set *source, sfx_system *sys, int id )
+{
+ if( sfx_begin_edit( sys ) )
+ {
+ sys->fadeout = 0;
+ sys->source = source->main;
+ sys->cur = source->segments[ id*2 + 0 ];
+ sys->end = source->segments[ id*2 + 1 ];
+ sys->ch = source->ch;
+
+ // Diagnostics
+ sys->clip_start = sys->cur;
+ sys->clip_end = sys->end;
+ sys->buffer_length = source->segments[ (source->numsegments-1)*2 + 1 ];
+
+ sfx_save( sys );
}
}
// Pick a random sound from the buffer and play it into system
-void sfx_set_playrnd( sfx_set *source, sfx_system *sys, int min_id, int max_id )
+static void sfx_set_playrnd( sfx_set *source, sfx_system *sys, int min_id, int max_id )
{
if( !source->numsegments )
- {
return;
+
+ if( max_id > source->numsegments )
+ {
+ vg_error( "Max ID out of range for playrnd\n" );
+ return;
}
int pick = (rand() % (max_id-min_id)) + min_id;
-
- sys->source = source->main;
- sys->cur = source->segments[ pick*2 + 0 ];
- sys->end = source->segments[ pick*2 + 1 ];
- sys->ch = source->ch;
- sfx_save( sys );
+ sfx_set_play( source, sys, pick );
+}
+
+static void sfx_system_fadeout( sfx_system *sys, u32 length_samples )
+{
+ if( sfx_begin_edit( sys ) )
+ {
+ if( sys->end )
+ {
+ sys->fadeout_current = length_samples;
+ sys->fadeout = length_samples;
+
+ if( sys->thread_clone )
+ sys->cur = sys->thread_clone->cur;
+
+ sfx_save( sys );
+ }
+ else
+ {
+ // Sound was not initialized
+ MUTEX_UNLOCK( sfx_mux_t01 );
+ }
+ }
}
// Free set resources
-void sfx_set_free( sfx_set *set )
+static void sfx_set_free( sfx_set *set )
{
-#ifndef VYGER_RELEASE
- num_sfx_sets --;
-#endif
free( set->main );
}
projects / fishladder.git / blobdiff