#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)
-
-typedef struct sfx_vol sfx_vol_t;
-typedef struct sfx_system sfx_system_t;
-
-struct sfx_vol
+#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;
+
+struct sfx_vol_control
{
float val;
- float cmp;
+ const char *name;
};
struct sfx_system
{
// Source buffer start
- float *source;
- float *replacement;
+ float *source, *replacement;
+
+ u32 clip_start, clip_end, buffer_length;
// Modifiers
- sfx_vol_t *vol_src;
+ sfx_vol_control *vol_src;
float vol;
- float spd;
-
// Info
- int ch; // channels
- u32 end; // buffer end
- u32 cur; // cursor position
+ u32 ch, end, cur;
u32 flags;
// Effects
- u32 snh;
- u32 fadeout;
+ u32 fadeout, fadeout_current;
- // The 'Opposite' pointer
- sfx_system_t *optr;
+ sfx_system *thread_clone; // Memory of this structure is copied into thread 2
// Diagnostic
- float cvol; // Current signal volume
+ float signal_average; // Current signal volume
const char *name;
};
-// 0
-int sfx_save( sfx_system_t *sys ); // Mark change to be uploaded to queue system
-void sfx_sys_init(void); // Miniaudio.h init
-void sfx_sys_free(void); // Shutdown audio device
-sfx_system_t *sfx_alloc(void); // Create and return slot for a sound
-
-// 1
-void sfx_localize(void); // Copy in data from all queued
-void sfx_redist(void); // Send out updates to sources
-void audio_mixer_callback( ma_device *pDevice, void *pOutBuf, const void *pInput, ma_uint32 frameCount ); // miniaudio.h interface
+// Set of up to 8 sound effects packed into one
+typedef struct sfx_set sfx_set;
+struct sfx_set
+{
+ float *main;
+ char *sources;
+
+ u32 segments[16]; //from->to,from->to ...
+ u32 numsegments;
+ u32 ch;
+ u32 flags;
+};
ma_device g_aud_device;
ma_device_config g_aud_dconfig;
-// Thread 2 - background loader ( to be moved )
-// ======================================================
-
// Thread 1 - audio engine ( spawned from miniaudio.h )
// ======================================================
-sfx_system_t sfx_sys[SFX_MAX_SYSTEMS];
-int sfx_sys_len = 0;
+sfx_system sfx_sys[SFX_MAX_SYSTEMS];
+int sfx_sys_len = 0;
// Thread 0 - Critical transfer section
// ======================================================
-MUTEX_TYPE sfx_mux_t01; // Resources share: 0 & 1
+MUTEX_TYPE sfx_mux_t01; // Resources share: 0 & 1
-sfx_system_t *sfx_q[SFX_MAX_SYSTEMS]; // Stuff changed
-int sfx_q_len = 0; // How much
+sfx_system *sfx_q[SFX_MAX_SYSTEMS]; // Stuff changed
+int sfx_q_len = 0; // How much
// x / 2
// ======================================================
// g_vol_master is never directly acessed by users
float g_master_volume = 1.f;
-sfx_vol_t g_vol_music;
-sfx_vol_t g_vol_sfx;
-
-#define SFX_NUM_VOLUMES 2
-sfx_vol_t *g_volumes[] = { &g_vol_music, &g_vol_sfx };
-
// Decompress entire vorbis stream into buffer
-float *sfx_vorbis_stream( const unsigned char *data, int len, int channels, uint32_t *samples )
+static float *sfx_vorbis_stream( const unsigned char *data, int len, int channels, u32 *samples )
{
int err;
stb_vorbis *pv = stb_vorbis_open_memory( data, len, &err, NULL );
if( !buffer )
{
+ stb_vorbis_close( pv );
vg_error( "out of memory while allocating sound resource\n" );
return NULL;
}
length_samples = read_samples;
}
+ stb_vorbis_close( pv );
*samples = length_samples;
return buffer;
}
-float *sfx_vorbis( const char *strFileName, int channels, u32 *samples )
+static float *sfx_vorbis( const char *strFileName, int channels, u32 *samples )
{
i64 len;
void *filedata = vg_asset_read_s( strFileName, &len );
// Asynchronous load-to-system callback
struct sfx_vorbis_a_to_inf
{
- sfx_system_t *sys;
- u32 flags;
+ sfx_system *sys;
+ u32 flags;
};
#define SFX_A_FLAG_AUTOSTART 0x1
#define SFX_A_FLAG_AUTOFREE 0x2
+/*
+static int sfx_save( sfx_system *sys );
+
// Asynchronous load-to-system callback
void sfx_vorbis_a_to_c( sfx_bgload_t *loadinf )
{
// Mark buffer for deallocation if autofree is set
if( inf->flags & SFX_A_FLAG_AUTOFREE )
- {
inf->sys->replacement = loadinf->buffer;
- }
else
- {
inf->sys->source = loadinf->buffer;
- }
inf->sys->end = loadinf->samples;
if( inf->flags & SFX_A_FLAG_AUTOSTART )
- {
sfx_save( inf->sys );
- }
free( loadinf->path );
free( loadinf );
}
// Asynchronous vorbis load into audio system
-void sfx_vorbis_a_to( sfx_system_t *sys, const char *strFileName, int channels, uint32_t flags )
+void sfx_vorbis_a_to( sfx_system *sys, const char *strFileName, int channels, u32 flags )
{
struct sfx_vorbis_a_to_inf *inf = malloc( sizeof( struct sfx_vorbis_a_to_inf ) );
inf->flags = flags;
sys->ch = channels;
if( !sfx_vorbis_a( strFileName, channels, sfx_vorbis_a_to_c, inf ) )
- {
free( inf );
- }
-}
+}*/
// 0
// ======================================================
-// Mark change to be uploaded to queue system
-int sfx_save( sfx_system_t *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;
return 1;
}
-// Edit a volume float, has to be function round-tripped
-// because of mutex
-void sfx_vol_fset( sfx_vol_t *src, float to )
+// Edit a volume float, has to be function wrapped because of mutex
+static void sfx_vol_fset( sfx_vol_control *src, float to )
{
MUTEX_LOCK( sfx_mux_t01 );
-
+
src->val = to;
- src->cmp = g_master_volume * to;
-
+
MUTEX_UNLOCK( sfx_mux_t01 );
}
// thread-safe get volume value
-float sfx_vol_fget( sfx_vol_t *src )
+static float sfx_vol_fget( sfx_vol_control *src )
{
float val;
}
// thread-safe set master volume
-void sfx_set_master( float to )
+static void sfx_set_master( float to )
{
MUTEX_LOCK( sfx_mux_t01 );
g_master_volume = to;
- for( int i = 0; i < SFX_NUM_VOLUMES; i ++ )
- {
- g_volumes[ i ]->cmp = g_volumes[ i ]->val * g_master_volume;
- }
-
MUTEX_UNLOCK( sfx_mux_t01 );
}
// thread-safe get master volume
-float sfx_get_master(void)
+static float sfx_get_master(void)
{
float val;
return val;
}
+void audio_mixer_callback( ma_device *pDevice, void *pOutBuf, const void *pInput, ma_uint32 frameCount );
+
// Miniaudio.h init
-void vg_audio_init(void)
+static void vg_audio_init(void)
{
- // Setup volume values
- // Todo: load these from config
- g_vol_sfx.val = 1.f;
- g_vol_music.val = 1.f;
- sfx_set_master( 1.f );
-
g_aud_dconfig = ma_device_config_init( ma_device_type_playback );
g_aud_dconfig.playback.format = ma_format_f32;
g_aud_dconfig.playback.channels = 2;
}
}
-#ifndef VYGER_RELEASE
-uint32_t num_sfx_sets = 0;
-#endif
-
// Shutdown audio device
-void vg_audio_free(void)
+static void vg_audio_free(void)
{
ma_device_uninit( &g_aud_device );
}
-// (debug) make sure we are shutting down safely
-void sfx_sys_chkerr(void)
-{
-#ifndef VYGER_RELEASE
- if( num_sfx_sets )
- {
- vg_error( "Leaked %u sfx sets\n", num_sfx_sets );
- }
-#endif
-}
-
// 1
// ======================================================
// Create and return slot for a sound
-sfx_system_t *sfx_alloc(void)
+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.
return sfx_sys + (sfx_sys_len++);
}
-// Copy in data from all queued
-void sfx_localize(void)
+// Fetch samples into pcf
+static void audio_mixer_getsamples( float *pcf, float *source, u32 cur, u32 ch )
+{
+ if( ch == 2 )
+ {
+ pcf[0] = source[ cur*2+0 ];
+ pcf[1] = source[ cur*2+1 ];
+ }
+ else
+ {
+ pcf[0] = source[ cur ];
+ pcf[1] = source[ cur ];
+ }
+}
+
+// miniaudio.h interface
+void audio_mixer_callback( ma_device *pDevice, void *pOutBuf, const void *pInput, ma_uint32 frameCount )
{
+ // Process incoming sound queue
MUTEX_LOCK( sfx_mux_t01 );
while( sfx_q_len --> 0 )
{
- sfx_system_t *src = sfx_q[sfx_q_len];
+ sfx_system *src = sfx_q[sfx_q_len];
+ sfx_system *clone;
- // This is a 'new' sound if optr not set.
- if( !src->optr || src->flags & SFX_FLAG_ONESHOT )
+ // This is a 'new' sound if thread_clone not set.
+ if( !src->thread_clone || (src->flags & SFX_FLAG_ONESHOT) )
{
- src->optr = sfx_alloc();
+ clone = sfx_alloc();
+ if( !clone )
+ break;
+
+ src->thread_clone = clone;
}
-
- // run replacement routine if one is waiting
- if( src->replacement )
+ else
{
- if( src->source )
+ clone = src->thread_clone;
+
+ // Modifying an active system's cursor spawns a small fadeout ghost system
+ if( clone->cur != src->cur )
{
- printf( "Deallocating previous source buffer\n" );
+ 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->optr->source = src->source;
// Localize data to thread 1's memory pool
- // memcpy( src->optr, src, sizeof( sfx_system_t ) );
-
- src->optr->spd = src->spd;
- src->optr->ch = src->ch;
- src->optr->end = src->end;
- src->optr->cur = src->cur;
- src->optr->flags = src->flags;
- // src->optr->sng = src->snh;
- src->optr->fadeout = src->fadeout;
- // src->optr->optr = src->optr;
- // src->optr->cvol = src->cvol;
- src->optr->vol_src = src->vol_src;
- src->optr->name = src->name;
-
- // loopback pointer on system system
- src->optr->optr = src;
+ 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
+ clone->thread_clone = src;
}
+
sfx_q_len = 0;
// Pull in volume sliders
for( int i = 0; i < sfx_sys_len; i ++ )
{
- sfx_system_t *sys = sfx_sys + i;
- sys->vol = sys->optr->vol;
- if( sys->vol_src ) { sys->vol *= sys->vol_src->cmp; };
- }
-
- MUTEX_UNLOCK( sfx_mux_t01 );
-}
-
-// Send out updates to sources
-void sfx_redist(void)
-{
- MUTEX_LOCK( sfx_mux_t01 );
-
- unsigned int idx = 0, wr = 0;
- while( idx != sfx_sys_len )
- {
- sfx_system_t *src = sfx_sys + idx;
-
- // Keep only if cursor is before end
- if( src->cur < src->end )
- {
- if( !(src->flags & SFX_FLAG_ONESHOT) )
- {
- // Correct source pointer
- src->optr->optr = sfx_sys + wr;
- }
-
- sfx_sys[ wr ++ ] = sfx_sys[ idx ];
- }
- else
- {
- if( !(src->flags & SFX_FLAG_ONESHOT) )
- {
- // Clear link on source
- src->optr->optr = NULL;
- }
- }
+ sfx_system *sys = sfx_sys + i;
+ sys->vol = sys->thread_clone->vol * g_master_volume;
- idx ++ ;
+ if( sys->vol_src )
+ sys->vol *= sys->vol_src->val;
}
- sfx_sys_len = wr;
MUTEX_UNLOCK( sfx_mux_t01 );
-}
-
-// Fetch samples into pcf
-void audio_mixer_getsamples( float *pcf, float *source, uint32_t cur, uint32_t ch )
-{
- if( ch == 2 )
- {
- pcf[0] = source[ cur*2+0 ];
- pcf[1] = source[ cur*2+1 ];
- }
- else
- {
- pcf[0] = source[ cur ];
- pcf[1] = source[ cur ];
- }
-}
-
-// miniaudio.h interface
-void audio_mixer_callback( ma_device *pDevice, void *pOutBuf, const void *pInput, ma_uint32 frameCount )
-{
- sfx_localize();
-
+
// Clear buffer ( is necessary ? )
float *pOut32F = (float *)pOutBuf;
for( int i = 0; i < frameCount * 2; i ++ ){
pOut32F[i] = 0.f;
}
-
+
// Do something with local..
for( int i = 0; i < sfx_sys_len; i ++ )
{
- sfx_system_t *sys = sfx_sys + i;
-
- uint32_t cursor = sys->cur;
- uint32_t bpos = 0;
+ sfx_system *sys = sfx_sys + i;
+ u32 cursor = sys->cur, buffer_pos = 0;
float avgvol = 0.f;
+ float pcf[2] = { 0.f, 0.0f };
- float pcf[2] = { 0.f };
+ 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 );
-
- avgvol += fabs( pcf[0] * sys->vol );
- avgvol += fabs( pcf[1] * sys->vol );
-
- pOut32F[ bpos*2+0 ] += pcf[0] * sys->vol;
- pOut32F[ bpos*2+1 ] += pcf[1] * sys->vol;
-
- // Blend the fadeout cursor in to prevent popping
- // This lasts 441 samples
+ u32 samples_this_run = VG_MIN( frames_write, sys->end - cursor );
+
if( sys->fadeout )
{
- if( sys->snh < sys->end )
+ // 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 );
+ }
+
+ 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 )
{
- audio_mixer_getsamples( pcf, sys->source, sys->snh, 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->snh ++;
- sys->fadeout --;
+ vol *= (float)sys->fadeout_current * fadeout_divisor;
+ sys->fadeout_current --;
}
- else
+
+ if( buffer_pos >= frameCount )
{
- sys->fadeout = 0;
+ 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 ++;
}
- cursor ++;
- bpos ++;
+ frames_write -= samples_this_run;
+
+ if( sys->flags & SFX_FLAG_REPEAT )
+ {
+ if( frames_write )
+ {
+ cursor = 0;
+ continue;
+ }
+ }
+
+ sys->cur = cursor;
+ sys->signal_average = avgvol / (float)(buffer_pos*2);
+
+ break;
}
+ }
+
+ // Redistribute sound systems
+ MUTEX_LOCK( sfx_mux_t01 );
+
+ u32 idx = 0, wr = 0;
+ while( idx != sfx_sys_len )
+ {
+ sfx_system *src = sfx_sys + idx;
- if( !sys->fadeout )
+ // 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|SFX_FLAG_GHOST)) )
+ {
+ src->thread_clone->thread_clone = sfx_sys + wr;
+ }
+
+ sfx_sys[ wr ++ ] = sfx_sys[ idx ];
+ }
+ else
{
- sys->snh = cursor;
+ // Clear link on persistent sources (done playing)
+ if( !(src->flags & (SFX_FLAG_ONESHOT|SFX_FLAG_GHOST)) )
+ src->thread_clone->thread_clone = NULL;
}
- sys->cvol = avgvol / (float)(bpos*2);
- sys->cur += frameCount;
+ idx ++ ;
}
-
- sfx_redist();
+ sfx_sys_len = wr;
+
+ MUTEX_UNLOCK( sfx_mux_t01 );
(void)pInput;
}
-// Set of up to 8 sound effects packed into one
-typedef struct sfx_set sfx_set_t;
-struct sfx_set
-{
- float *main;
- char *sources;
-
- uint32_t segments[16]; //from->to,from->to ...
- uint32_t numsegments;
- uint32_t ch;
- uint32_t flags;
-};
-
// Load strings into sfx_set's memory
// String layout: "sounda.ogg\0soundb.ogg\0soundc.ogg\0\0"
-void sfx_set_strings( sfx_set_t *dest, char *strSources, uint32_t 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" );
dest->numsegments = 0;
char *source = strSources;
- uint32_t total = 0;
+ u32 total = 0;
int len;
while( (len = strlen( source )) )
{
- uint32_t samples;
+ u32 samples;
float *sound = sfx_vorbis( source, dest->ch, &samples );
if( !sound )
vg_info( "finished, numsegments: %u\n", dest->numsegments );
}
-
-// If sources is non-null then it will try to pull from
-// internally set string
-//
-// internal set string should be literal, otherwise leak if not
-// handled correctly
-void sfx_set_init( sfx_set_t *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 );
- }
}
// Pick a random sound from the buffer and play it into system
-void sfx_set_playrnd( sfx_set_t *source, sfx_system_t *sys )
+static void sfx_set_playrnd( sfx_set *source, sfx_system *sys, int min_id, int max_id )
{
if( !source->numsegments )
- {
return;
+
+ int pick = (rand() % (max_id-min_id)) + min_id;
+
+ if( sfx_begin_edit( sys ) )
+ {
+ sys->fadeout = 0;
+ sys->source = source->main;
+ sys->cur = source->segments[ pick*2 + 0 ];
+ sys->end = source->segments[ pick*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 );
}
+}
- int pick = rand() % source->numsegments;
-
- sys->source = source->main;
- sys->cur = source->segments[ pick*2 + 0 ];
- sys->end = source->segments[ pick*2 + 1 ];
- sys->ch = source->ch;
+static void sfx_system_fadeout( sfx_system *sys, u32 length_samples )
+{
+ if( sfx_begin_edit( sys ) )
+ {
+ sys->fadeout_current = length_samples;
+ sys->fadeout = length_samples;
+
+ if( sys->thread_clone )
+ sys->cur = sys->thread_clone->cur;
- sfx_save( sys );
+ sfx_save( sys );
+ }
}
// Free set resources
-void sfx_set_free( sfx_set_t *set )
+static void sfx_set_free( sfx_set *set )
{
-#ifndef VYGER_RELEASE
- num_sfx_sets --;
-#endif
free( set->main );
}
projects / fishladder.git / blobdiff