X-Git-Url: https://harrygodden.com/git/?p=vg.git;a=blobdiff_plain;f=vg_audio.h;h=279b7f4ea57316c6c9680cf5fdf9be631ee0c8e0;hp=edbe8a2681b4a169f741a183aca611b5208cac46;hb=HEAD;hpb=fd8875baf8264b20731fb1bffaba4e1393beb189 diff --git a/vg_audio.h b/vg_audio.h index edbe8a2..ba10348 100644 --- a/vg_audio.h +++ b/vg_audio.h @@ -1,122 +1,77 @@ -/* Copyright (C) 2021-2022 Harry Godden (hgn) - All Rights Reserved */ +/* Copyright (C) 2021-2024 Harry Godden (hgn) - All Rights Reserved */ -#ifndef VG_AUDIO_H -#define VG_AUDIO_H +#pragma once -#define VG_GAME +#include "vg_platform.h" +#include "vg_engine.h" +#include "vg_string.h" +#include "vg_vorbis.h" -#include "vg/vg.h" -#include "vg/vg_stdint.h" -#include "vg/vg_platform.h" -#include "vg/vg_io.h" -#include "vg/vg_m.h" -#include "vg/vg_ui.h" -#include "vg/vg_console.h" -#include "vg/vg_store.h" -#include "vg/vg_profiler.h" +#define AUDIO_FRAME_SIZE 512 +#define AUDIO_MIX_FRAME_SIZE 256 -#include -#include - -#ifdef __GNUC__ - #ifndef __clang__ - #pragma GCC push_options - #pragma GCC optimize ("O3") - #pragma GCC diagnostic push - #pragma GCC diagnostic ignored "-Wdeprecated-declarations" - #endif -#endif - -#define STB_VORBIS_MAX_CHANNELS 2 -#include "submodules/stb/stb_vorbis.c" -#undef L -#undef R -#undef C - -#ifdef __GNUC__ - #ifndef __clang__ - #pragma GCC pop_options - #pragma GCC diagnostic pop - #endif -#endif - -#define SFX_MAX_SYSTEMS 32 +#define AUDIO_CHANNELS 32 +#define AUDIO_LFOS 8 +#define AUDIO_FILTERS 16 #define AUDIO_FLAG_LOOP 0x1 -#define AUDIO_FLAG_ONESHOT 0x2 +#define AUDIO_FLAG_NO_DOPPLER 0x2 #define AUDIO_FLAG_SPACIAL_3D 0x4 #define AUDIO_FLAG_AUTO_START 0x8 -#define AUDIO_FLAG_KILL 0x10 - -#define FADEOUT_LENGTH 1100 -#define FADEOUT_DIVISOR (1.0f/(float)FADEOUT_LENGTH) +#define AUDIO_FLAG_NO_DSP 0x10 +#define AUDIO_FLAG_FORMAT 0x1E00 + +enum audio_format +{ + k_audio_format_mono = 0x000u, + k_audio_format_stereo = 0x200u, + k_audio_format_vorbis = 0x400u, + k_audio_format_none0 = 0x600u, + k_audio_format_none1 = 0x800u, + k_audio_format_none2 = 0xA00u, + k_audio_format_none3 = 0xC00u, + k_audio_format_none4 = 0xE00u, + + k_audio_format_bird = 0x1000u, + k_audio_format_gen = 0x1200u, + k_audio_format_none6 = 0x1400u, + k_audio_format_none7 = 0x1600u, + k_audio_format_none8 = 0x1800u, + k_audio_format_none9 = 0x1A00u, + k_audio_format_none10 = 0x1C00u, + k_audio_format_none11 = 0x1E00u, +}; #define AUDIO_DECODE_SIZE (1024*256) /* 256 kb decoding buffers */ - -enum audio_source_mode -{ - k_audio_source_mono, - k_audio_source_compressed, -}; +#define AUDIO_MUTE_VOLUME 0.0f +#define AUDIO_BASE_VOLUME 1.0f typedef struct audio_clip audio_clip; -struct audio_clip -{ - const char *path; - enum audio_source_mode source_mode; - - u32 size; - void *data; -}; +typedef struct audio_channel audio_channel; +typedef struct audio_lfo audio_lfo; -typedef struct audio_mix_info audio_mix_info; -struct audio_mix_info +struct audio_clip { - audio_clip *source; - v3f world_position; + union { /* TODO oof.. */ + u64 _p64_; + const char *path; + void *func; + }; - float vol, pan; u32 flags; -}; - -typedef struct audio_player audio_player; -struct audio_player -{ - aatree_ptr active_entity; /* non-nil if currently playing */ - audio_mix_info info; - int enqued, init; - - /* Diagnostic */ - const char *name; -}; - -typedef struct audio_entity audio_entity; -struct audio_entity -{ - audio_player *player; - audio_mix_info info; + u32 size; - u32 length, cur; - - /* Effects */ - u32 fadeout, fadeout_current; - const char *name; + union{ + u64 _p64; + void *data; + }; }; -/* - * TODO list sunday - * - * play again: if already playing, leave in queue while it fadeouts - * oneshot: create a ghost entity - * - */ - -static struct vg_audio_system +struct vg_audio_system { -#if 0 - ma_device miniaudio_device; - ma_device_config miniaudio_dconfig; -#endif SDL_AudioDeviceID sdl_output_device; + vg_str device_choice; /* buffer is null? use default from OS */ + + bool always_keep_compressed; void *audio_pool, *decode_buffer; @@ -125,1058 +80,150 @@ static struct vg_audio_system /* synchro */ int sync_locked; - SDL_mutex *mux_checker, - *mux_sync; - - /* Audio engine, thread 1 */ - struct active_audio_player - { - int active; - union - { - audio_entity ent; - aatree_pool_node pool_node; - }; - - stb_vorbis *vorbis_handle; - stb_vorbis_alloc vorbis_alloc; - } - active_players[ SFX_MAX_SYSTEMS ]; - - aatree active_pool_info; /* note: just using the pool */ - aatree_ptr active_pool_head; - - /* System queue, and access from thread 0 */ - audio_entity entity_queue[SFX_MAX_SYSTEMS]; - int queue_len; - int debug_ui, debug_ui_3d; - - v3f listener_pos, - listener_ears; - - float volume, - volume_target, - volume_target_internal, - volume_console; -} -vg_audio = { .volume_console = 1.0f }; - -static struct vg_profile - _vg_prof_audio_decode = {.mode = k_profile_mode_accum, - .name = "[T2] audio_decode()"}, - _vg_prof_audio_mix = {.mode = k_profile_mode_accum, - .name = "[T2] audio_mix()"}, - vg_prof_audio_decode, - vg_prof_audio_mix; - -/* - * These functions are called from the main thread and used to prevent bad - * access. TODO: They should be no-ops in release builds. - */ -VG_STATIC int audio_lock_checker_load(void) -{ - int value; - SDL_LockMutex( vg_audio.mux_checker ); - value = vg_audio.sync_locked; - SDL_UnlockMutex( vg_audio.mux_checker ); - return value; -} - -VG_STATIC void audio_lock_checker_store( int value ) -{ - SDL_LockMutex( vg_audio.mux_checker ); - vg_audio.sync_locked = value; - SDL_UnlockMutex( vg_audio.mux_checker ); -} - -VG_STATIC void audio_require_lock(void) -{ - if( audio_lock_checker_load() ) - return; - - vg_error( "Modifying sound effects systems requires locking\n" ); - abort(); -} - -VG_STATIC void audio_lock(void) -{ - SDL_LockMutex( vg_audio.mux_sync ); - audio_lock_checker_store(1); -} - -VG_STATIC void audio_unlock(void) -{ - audio_lock_checker_store(0); - SDL_UnlockMutex( vg_audio.mux_sync ); -} - -VG_STATIC void audio_mixer_callback( void *user, u8 *stream, int frame_count ); -VG_STATIC void vg_audio_init(void) -{ - vg_audio.mux_checker = SDL_CreateMutex(); - vg_audio.mux_sync = SDL_CreateMutex(); - - /* TODO: Move here? */ - vg_var_push( (struct vg_var){ - .name = "debug_audio", - .data = &vg_audio.debug_ui, - .data_type = k_var_dtype_i32, - .opt_i32 = { .min=0, .max=1, .clamp=1 }, - .persistent = 1 - }); - - vg_var_push( (struct vg_var){ - .name = "volume", - .data = &vg_audio.volume_console, - .data_type = k_var_dtype_f32, - .opt_f32 = { .min=0.0f, .max=2.0f, .clamp=1 }, - .persistent = 1 - }); - - /* allocate memory */ - - /* 32mb fixed */ - vg_audio.audio_pool = - vg_create_linear_allocator( vg_mem.rtmemory, 1024*1024*32, - VG_MEMORY_SYSTEM ); - - /* fixed */ - u32 decode_size = AUDIO_DECODE_SIZE * SFX_MAX_SYSTEMS; - vg_audio.decode_buffer = vg_linear_alloc( vg_mem.rtmemory, decode_size ); - - /* setup pool */ - vg_audio.active_pool_info.base = vg_audio.active_players; - vg_audio.active_pool_info.offset = offsetof(struct active_audio_player, - pool_node ); - vg_audio.active_pool_info.stride = sizeof(struct active_audio_player); - vg_audio.active_pool_info.p_cmp = NULL; - aatree_init_pool( &vg_audio.active_pool_info, SFX_MAX_SYSTEMS ); - - SDL_AudioSpec spec_desired, spec_got; - spec_desired.callback = audio_mixer_callback; - spec_desired.channels = 2; - spec_desired.format = AUDIO_F32; - spec_desired.freq = 44100; - spec_desired.padding = 0; - spec_desired.samples = 512; - spec_desired.silence = 0; - spec_desired.size = 0; - spec_desired.userdata = NULL; - - vg_audio.sdl_output_device = - SDL_OpenAudioDevice( NULL, 0, &spec_desired, &spec_got, - SDL_AUDIO_ALLOW_SAMPLES_CHANGE ); - - if( vg_audio.sdl_output_device ) - { - SDL_PauseAudioDevice( vg_audio.sdl_output_device, 0 ); - } - else - { - vg_fatal_exit_loop( - "SDL_OpenAudioDevice failed. Your default audio device must support:\n" - " Frequency: 44100 hz\n" - " Buffer size: 512\n" - " Channels: 2\n" - " Format: s16 or f32\n" ); - } - - vg_success( "Ready\n" ); -} - -VG_STATIC void vg_audio_free(void) -{ - SDL_CloseAudioDevice( vg_audio.sdl_output_device ); -} - -/* - * thread 1 - */ - -static aatree_ptr audio_alloc_entity_internal(void) -{ - aatree_ptr playerid = aatree_pool_alloc( &vg_audio.active_pool_info, - &vg_audio.active_pool_head ); - - if( playerid == AATREE_PTR_NIL ) - return AATREE_PTR_NIL; - - struct active_audio_player *aap = &vg_audio.active_players[ playerid ]; - aap->active = 1; - - return playerid; -} - -VG_STATIC void audio_entity_free_internal( aatree_ptr id ) -{ - struct active_audio_player *aap = &vg_audio.active_players[ id ]; - aap->active = 0; - - /* Notify player that we've finished */ - if( aap->ent.player ) - aap->ent.player->active_entity = AATREE_PTR_NIL; - - /* delete */ - aatree_pool_free( &vg_audio.active_pool_info, id, - &vg_audio.active_pool_head ); -} - -VG_STATIC void *audio_entity_vorbis_ptr( aatree_ptr entid ) -{ - u8 *buf = (u8*)vg_audio.decode_buffer, - *loc = &buf[AUDIO_DECODE_SIZE*entid]; - - return (void *)loc; -} - -VG_STATIC void audio_entity_start( audio_entity *src ) -{ - aatree_ptr entid = audio_alloc_entity_internal(); - if( entid == AATREE_PTR_NIL ) - return; - - audio_entity *ent = &vg_audio.active_players[ entid ].ent; - - ent->info = src->info; - ent->name = src->info.source->path; - ent->cur = 0; - ent->player = src->player; - - ent->fadeout = 0; - ent->fadeout_current = 0; - - /* Notify main player we are dequeud and playing */ - if( src->player ) - { - src->player->enqued = 0; - src->player->active_entity = entid; - } - - if( src->info.source->source_mode == k_audio_source_compressed ) - { - /* Setup vorbis decoder */ - struct active_audio_player *aap = &vg_audio.active_players[ entid ]; - - stb_vorbis_alloc alloc = { - .alloc_buffer = (char *)audio_entity_vorbis_ptr( entid ), - .alloc_buffer_length_in_bytes = AUDIO_DECODE_SIZE - }; - - int err; - stb_vorbis *decoder = stb_vorbis_open_memory( - src->info.source->data, - src->info.source->size, &err, &alloc ); - - if( !decoder ) - { - vg_error( "stb_vorbis_open_memory failed on '%s' (%d)\n", - src->info.source->path, err ); - - audio_entity_free_internal( entid ); - return; - } - else - { - ent->length = stb_vorbis_stream_length_in_samples( decoder ); - } - - aap->vorbis_handle = decoder; - } - else - { - ent->length = src->info.source->size; - } -} - -/* - * Read everything from the queue - */ -VG_STATIC void audio_system_enque(void) -{ - /* Process incoming sound queue */ - audio_lock(); - - vg_audio.volume_target_internal = vg_audio.volume_target; - - int wr = 0; - for( int i=0; iplayer ) - { - /* Start new */ - if( src->player->active_entity == AATREE_PTR_NIL ) - { - audio_entity_start( src ); - } - else - { - /* Otherwise try start fadeout but dont remove from queue */ - - aatree_ptr entid = src->player->active_entity; - audio_entity *ent = &vg_audio.active_players[ entid ].ent; - if( !ent->fadeout ) - { - ent->fadeout = FADEOUT_LENGTH; - ent->fadeout_current = FADEOUT_LENGTH; - } - - vg_audio.entity_queue[ wr ++ ] = *src; - } - } - else - { - audio_entity_start( src ); - } - } - - vg_audio.queue_len = wr; - - /* Localize others memory */ - for( int i=0; iactive ) - continue; - - if( aap->ent.player ) - { - /* Only copy information in whilst not requeing */ - if( aap->ent.player->enqued == 0 ) - { - aap->ent.info = aap->ent.player->info; - - if( (aap->ent.info.flags & AUDIO_FLAG_KILL) && !aap->ent.fadeout ) - { - aap->ent.fadeout = FADEOUT_LENGTH; - aap->ent.fadeout_current = FADEOUT_LENGTH; - } - } - } - } - - audio_unlock(); -} - -/* - * Redistribute sound systems - */ -VG_STATIC void audio_system_cleanup(void) -{ - audio_lock(); - - for( int i=0; iactive ) - { - audio_entity *src = &aap->ent; - if( src->cur < src->length || (src->info.flags & AUDIO_FLAG_LOOP )) - { - /* Good to keep */ - } - else - { - audio_entity_free_internal( i ); - } - } - } - - audio_unlock(); -} - -/* - * Get effective volume and pan from this entity - */ -VG_STATIC void audio_entity_spacialize( audio_entity *ent, - float *vol, float *pan ) -{ - if( ent->info.vol < 0.01f ) - { - *vol = ent->info.vol; - *pan = 0.0f; - return; - } - - if( !vg_validf(vg_audio.listener_pos[0]) || - !vg_validf(vg_audio.listener_pos[1]) || - !vg_validf(vg_audio.listener_pos[2]) || - !vg_validf(ent->info.world_position[0]) || - !vg_validf(ent->info.world_position[1]) || - !vg_validf(ent->info.world_position[2]) ) - { - vg_error( "NaN listener/world position (%s)\n", ent->name ); - *vol = 0.0f; - *pan = 0.0f; - return; - } - - v3f delta; - v3_sub( ent->info.world_position, vg_audio.listener_pos, delta ); - - float dist2 = v3_length2( delta ); - - if( dist2 < 0.0001f ) - { - *pan = 0.0f; - *vol = 1.0f; - } - else - { - float dist = sqrtf( dist2 ), - attn = (dist / ent->info.vol) +1.0f; - - v3_muls( delta, 1.0f/dist, delta ); - *pan = v3_dot( vg_audio.listener_ears, delta ); - *vol = 1.0f/(attn*attn); - } -} - -VG_STATIC void audio_decode_uncompressed_mono( i16 *src, u32 count, float *dst ) -{ - for( u32 i=0; istereo - */ -VG_STATIC int -stb_vorbis_get_samples_float_interleaved_stereo( stb_vorbis *f, float *buffer, - int len ) -{ - int n = 0, - c = VG_MIN( 1, f->channels - 1 ); - - while( n < len ) - { - int k = f->channel_buffer_end - f->channel_buffer_start; - - if( n+k >= len ) - k = len - n; - - for( int j=0; j < k; ++j ) - { - *buffer++ = f->channel_buffers[ 0 ][f->channel_buffer_start+j]; - *buffer++ = f->channel_buffers[ c ][f->channel_buffer_start+j]; - } - - n += k; - f->channel_buffer_start += k; - - if( n == len ) - break; - - if( !stb_vorbis_get_frame_float( f, NULL, NULL )) - break; - } - - return n; -} - -/* - * ........ more wrecked code sorry! - */ -VG_STATIC int -stb_vorbis_get_samples_i16_downmixed( stb_vorbis *f, i16 *buffer, int len ) -{ - int n = 0, - c = VG_MIN( 1, f->channels - 1 ); - - while( n < len ) - { - int k = f->channel_buffer_end - f->channel_buffer_start; - - if( n+k >= len ) - k = len - n; - - for( int j=0; j < k; ++j ) - { - float sl = f->channel_buffers[ 0 ][f->channel_buffer_start+j], - sr = f->channel_buffers[ c ][f->channel_buffer_start+j]; - - *buffer++ = vg_clampf( 0.5f*(sl+sr), -1.0f, 1.0f ) * 32767.0f; - //*buffer++ = vg_clampf( sr, -1.0f, 1.0f ) * 32767.0f; - } - - n += k; - f->channel_buffer_start += k; - - if( n == len ) - break; - - if( !stb_vorbis_get_frame_float( f, NULL, NULL )) - break; - } - - return n; -} - -VG_STATIC void audio_entity_get_samples( aatree_ptr id, u32 count, float *buf ) -{ - vg_profile_begin( &_vg_prof_audio_decode ); - - struct active_audio_player *aap = &vg_audio.active_players[id]; - audio_entity *ent = &aap->ent; - - u32 remaining = count; - u32 cursor = ent->cur; - u32 buffer_pos = 0; - - while( remaining ) - { - u32 samples_this_run = VG_MIN( remaining, ent->length - cursor ); - remaining -= samples_this_run; + SDL_SpinLock sl_checker, + sl_sync; - float *dst = &buf[ buffer_pos * 2 ]; + struct audio_lfo{ + u32 time, time_startframe; + float sqrt_polynomial_coefficient; - int source_mode = ent->info.source->source_mode; - - if( source_mode == k_audio_source_mono ) - { - i16 *src_buffer = ent->info.source->data, - *src = &src_buffer[cursor]; - - audio_decode_uncompressed_mono( src, samples_this_run, dst ); - } - else if( source_mode == k_audio_source_compressed ) - { - int read_samples = stb_vorbis_get_samples_float_interleaved_stereo( - aap->vorbis_handle, - dst, - samples_this_run ); - - if( read_samples != samples_this_run ) - { - vg_warn( "Invalid samples read (%s)\n", ent->info.source->path ); - } - } - - cursor += samples_this_run; - buffer_pos += samples_this_run; - - if( (ent->info.flags & AUDIO_FLAG_LOOP) && remaining ) - { - if( source_mode == k_audio_source_compressed ) - { - stb_vorbis_seek_start( aap->vorbis_handle ); + struct{ + enum lfo_wave_type{ + k_lfo_triangle, + k_lfo_square, + k_lfo_saw, + k_lfo_polynomial_bipolar } + wave_type; - cursor = 0; - continue; + u32 period; + float polynomial_coefficient; } - else - break; + _, editable_state; + u32 editble_state_write_mask; } + oscillators[ AUDIO_LFOS ]; - while( remaining ) - { - buf[ buffer_pos*2 + 0 ] = 0.0f; - buf[ buffer_pos*2 + 1 ] = 0.0f; - buffer_pos ++; + struct audio_channel{ + int allocated; + u16 group; + u8 world_id; - remaining --; - } + char name[32]; /* only editable while allocated == 0 */ + audio_clip *source; /* ... */ + u32 flags; /* ... */ + u32 colour; /* ... */ - ent->cur = cursor; - vg_profile_end( &_vg_prof_audio_decode ); -} + /* internal non-readable state + * -----------------------------*/ + u32 cursor, source_length; -VG_STATIC void audio_entity_mix( aatree_ptr id, float *buffer, - u32 frame_count ) -{ - audio_entity *ent = &vg_audio.active_players[id].ent; - - u32 cursor = ent->cur, buffer_pos = 0; - float *pcf = alloca( frame_count * 2 * sizeof(float) ); - - u32 frames_write = frame_count; - float fadeout_divisor = 1.0f / (float)ent->fadeout; + float volume_movement_start, + pan_movement_start; - float vol = ent->info.vol, - pan = ent->info.pan; + u32 volume_movement, + pan_movement; - audio_entity_get_samples( id, frame_count, pcf ); - - vg_profile_begin( &_vg_prof_audio_mix ); - - if( ent->info.flags & AUDIO_FLAG_SPACIAL_3D ) - audio_entity_spacialize( ent, &vol, &pan ); - - for( u32 j=0; jfadeout ) - { - /* Force this system to be removed now */ - if( ent->fadeout_current == 0 ) - { - ent->info.flags = 0x00; - ent->cur = ent->length; - break; - } - - frame_vol *= (float)ent->fadeout_current * fadeout_divisor; - ent->fadeout_current --; + union{ + struct synth_bird *bird; + stb_vorbis *vorbis; } + handle; - float sl = 1.0f-pan, - sr = 1.0f+pan; - - buffer[ buffer_pos*2+0 ] += pcf[ buffer_pos*2+0 ] * frame_vol * sl; - buffer[ buffer_pos*2+1 ] += pcf[ buffer_pos*2+1 ] * frame_vol * sr; - - buffer_pos ++; - } - - vg_profile_end( &_vg_prof_audio_mix ); -} - -VG_STATIC void audio_mixer_callback( void *user, u8 *stream, int byte_count ) -{ - audio_system_enque(); - - int frame_count = byte_count/(2*sizeof(float)); - - /* Clear buffer */ - float *pOut32F = (float *)stream; - for( int i=0; iactive ) - audio_entity_mix( i, pOut32F, frame_count ); - } - - float vol_diff = vg_audio.volume_target_internal - vg_audio.volume, - vol_rate = 1.0f / (44100.0f*0.25f), - vol_chg = frame_count * vol_rate; - - if( vol_chg > fabsf( vol_diff ) ) - vg_audio.volume = vg_audio.volume_target_internal; - else - vg_audio.volume += vg_signf( vol_diff ) * vol_chg; - - /* redistribute */ - audio_system_cleanup(); - - audio_lock(); - - vg_profile_increment( &_vg_prof_audio_decode ); - vg_profile_increment( &_vg_prof_audio_mix ); - - vg_prof_audio_mix = _vg_prof_audio_mix; - vg_prof_audio_decode = _vg_prof_audio_decode; - - vg_audio.samples_last = frame_count; - audio_unlock(); -} - -VG_STATIC void audio_clip_load( audio_clip *clip, void *lin_alloc ) -{ - if( lin_alloc == NULL ) - lin_alloc = vg_audio.audio_pool; - - if( clip->source_mode == k_audio_source_mono ) - { - vg_linear_clear( vg_mem.scratch ); - u32 fsize; - - stb_vorbis_alloc alloc = { - .alloc_buffer = vg_linear_alloc( vg_mem.scratch, AUDIO_DECODE_SIZE ), - .alloc_buffer_length_in_bytes = AUDIO_DECODE_SIZE - }; - - void *filedata = vg_file_read( vg_mem.scratch, clip->path, &fsize ); - - int err; - stb_vorbis *decoder = stb_vorbis_open_memory( - filedata, fsize, &err, &alloc ); + stb_vorbis_alloc vorbis_alloc; - if( !decoder ) - { - vg_error( "stb_vorbis_open_memory failed on '%s' (%d)\n", - clip->path, err ); - vg_fatal_exit_loop( "Vorbis decode error" ); + enum channel_activity{ + k_channel_activity_reset, /* will advance if allocated==1, to wake */ + k_channel_activity_wake, /* will advance to either of next two */ + k_channel_activity_alive, + k_channel_activity_end, + k_channel_activity_error } - - /* only mono is supported in uncompressed */ - u32 length_samples = stb_vorbis_stream_length_in_samples( decoder ), - data_size = length_samples * sizeof(i16); - - audio_lock(); - clip->data = vg_linear_alloc( lin_alloc, vg_align8(data_size) ); - clip->size = length_samples; - audio_unlock(); - - int read_samples = stb_vorbis_get_samples_i16_downmixed( - decoder, clip->data, length_samples ); - - if( read_samples != length_samples ) - vg_fatal_exit_loop( "Decode error" ); - - float mb = (float)(data_size) / (1024.0f*1024.0f); - vg_info( "Loaded audio clip '%s' (%.1fmb) %u samples\n", clip->path, mb, - length_samples ); - } - - /* load in directly */ - else if( clip->source_mode == k_audio_source_compressed ) - { - audio_lock(); - clip->data = vg_file_read( lin_alloc, clip->path, &clip->size ); - audio_unlock(); - - if( !clip->data ) - vg_fatal_exit_loop( "Audio failed to load" ); - - float mb = (float)(clip->size) / (1024.0f*1024.0f); - vg_info( "Loaded audio clip '%s' (%.1fmb)\n", clip->path, mb ); - } -} - -VG_STATIC void audio_clip_loadn( audio_clip *arr, int count, void *lin_alloc ) -{ - for( int i=0; i= vg_list_size( vg_audio.entity_queue ) ) - { - vg_warn( "Audio commit queue full\n" ); - return; - } - - if( sys->enqued ) - { - vg_warn( "[2] Audio commit spamming; already enqued (%s)\n", sys->name ); - return; - } - - sys->enqued = 1; - audio_entity *ent = &vg_audio.entity_queue[ vg_audio.queue_len ++ ]; - ent->info = sys->info; - ent->player = sys; -} - -VG_STATIC void audio_require_init( audio_player *player ) -{ - if( player->init ) - return; - - audio_unlock(); - vg_fatal_exit_loop( "Must init audio player before playing! \n" ); -} - -VG_STATIC void audio_require_clip_loaded( audio_clip *clip ) -{ - if( clip->data && clip->size ) - return; - - audio_unlock(); - vg_fatal_exit_loop( "Must load audio clip before playing! \n" ); -} - -/* Play a clip using player. If its already playing something, it will - * fadeout quickly and start the next sound */ -VG_STATIC void audio_player_playclip( audio_player *player, audio_clip *clip ) -{ - audio_require_lock(); - audio_require_init( player ); - audio_require_clip_loaded( clip ); - - if( player->info.flags & AUDIO_FLAG_KILL ) - { - vg_error( "Can't start audio clip on player that is/has disconnected" ); - return; - } - - if( player->enqued ) - { - vg_warn( "[1] Audio commit spamming; already enqued (%s)\n", - player->name ); - return; - } - - player->info.source = clip; - audio_player_commit( player ); -} - -VG_STATIC void audio_play_oneshot( audio_clip *clip, float volume ) -{ - audio_require_lock(); - audio_require_clip_loaded( clip ); - - if( vg_audio.queue_len >= vg_list_size( vg_audio.entity_queue ) ) - { - vg_warn( "Audio commit queue full\n" ); - return; - } - - audio_entity *ent = &vg_audio.entity_queue[ vg_audio.queue_len ++ ]; - - ent->info.flags = AUDIO_FLAG_ONESHOT; - ent->info.pan = 0.0f; - ent->info.source = clip; - ent->info.vol = volume; - ent->player = NULL; -} - -VG_STATIC void audio_player_init( audio_player *player ) -{ - player->active_entity = AATREE_PTR_NIL; - player->init = 1; -} - -/* - * Effects - */ - -/* - * Safety enforced Get/set attributes - */ - -VG_STATIC int audio_player_is_playing( audio_player *sys ) -{ - audio_require_lock(); - - if( sys->active_entity != AATREE_PTR_NIL ) - return 1; - else - return 0; -} - -VG_STATIC void audio_player_set_position( audio_player *sys, v3f pos ) -{ - audio_require_lock(); - v3_copy( pos, sys->info.world_position ); -} - -VG_STATIC void audio_player_set_vol( audio_player *sys, float vol ) -{ - audio_require_lock(); - - if( !vg_validf(vol) ) - { - vg_warn( "NaN volume (%s)\n", sys->name ); - vol = 0.0f; - } - - if( (vol < 0.0f) || (vol > 100.0f) ) - { - vg_warn( "Invalid volume (%s: %f)\n", sys->name, vol ); - vol = 0.0f; - } - - sys->info.vol = vol; -} - -VG_STATIC float audio_player_get_vol( audio_player *sys ) -{ - audio_require_lock(); - return sys->info.vol; -} - -VG_STATIC void audio_player_set_pan( audio_player *sys, float pan ) -{ - audio_require_lock(); - sys->info.pan = pan; -} - -VG_STATIC float audio_player_get_pan( audio_player *sys ) -{ - audio_require_lock(); - return sys->info.pan; -} - -VG_STATIC void audio_player_set_flags( audio_player *sys, u32 flags ) -{ - audio_require_lock(); - sys->info.flags = flags; -} - -VG_STATIC u32 audio_player_get_flags( audio_player *sys ) -{ - audio_require_lock(); - return sys->info.flags; -} - -VG_STATIC void audio_set_master_vol( float vol ) -{ - audio_require_lock(); - vg_audio.volume_target = vol; -} - -VG_STATIC void audio_push_console_vol(void) -{ - audio_lock(); - audio_set_master_vol( vg_audio.volume_console ); - audio_unlock(); -} - -/* - * Debugging - */ - -VG_STATIC void audio_debug_ui( m4x4f mtx_pv ) -{ - if( !vg_audio.debug_ui ) - return; - - /* Get data */ - struct sound_info - { - const char *name; - u32 cursor, flags, length; - v3f pos; - float vol; - } - infos[ SFX_MAX_SYSTEMS ]; - int num_systems = 0; - - audio_lock(); - - for( int i=0; iactive ) - continue; - - audio_entity *ent = &aap->ent; - struct sound_info *snd = &infos[ num_systems ++ ]; - - snd->name = ent->name; - snd->cursor = ent->cur; - snd->flags = ent->info.flags; - snd->length = ent->length; - snd->vol = ent->info.vol*100.0f; - v3_copy( ent->info.world_position, snd->pos ); - } - - float budget = ((double)vg_audio.samples_last / 44100.0) * 1000.0; - vg_profile_drawn( (struct vg_profile *[]){ &vg_prof_audio_decode, - &vg_prof_audio_mix }, 2, - budget, (ui_rect){ 4, VG_PROFILE_SAMPLE_COUNT*2 + 8, - 250, 0 }, 3 ); - - audio_unlock(); - - char perf[128]; - - /* Draw UI */ - vg_uictx.cursor[0] = 258; - vg_uictx.cursor[1] = VG_PROFILE_SAMPLE_COUNT*2+8+24+12; - vg_uictx.cursor[2] = 150; - vg_uictx.cursor[3] = 12; - - float mb1 = 1024.0f*1024.0f, - usage = vg_linear_get_cur( vg_audio.audio_pool ) / mb1, - total = vg_linear_get_capacity( vg_audio.audio_pool ) / mb1, - percent = (usage/total) * 100.0f; - - snprintf( perf, 127, "Mem: %.1f/%.1fmb (%.1f%%)\n", usage, total, percent ); - - ui_text( vg_uictx.cursor, perf, 1, 0 ); - vg_uictx.cursor[1] += 20; - - ui_rect overlap_buffer[ SFX_MAX_SYSTEMS ]; - u32 overlap_length = 0; - - /* Draw audio stack */ - for( int i=0; icursor / (float)inf->length) * w; - - /* cursor */ - vg_uictx.cursor[2] = 2; - vg_uictx.cursor[0] = c; - ui_fill_rect( vg_uictx.cursor, 0xffffffff ); - - vg_uictx.cursor[0] = baseline + 2; - vg_uictx.cursor[1] += 2; - snprintf( perf, 127, "%s %.1f%%", infos[i].name, infos[i].vol ); - ui_text( vg_uictx.cursor, perf, 1, 0 ); + /* + * editable structure, can be modified inside _lock and _unlock + * the edit mask tells which to copy into internal _, or to discard + * ---------------------------------------------------------------------- + */ + struct channel_state{ + int relinquished; + + float volume, /* current volume */ + volume_target, /* target volume */ + pan, + pan_target, + sampling_rate; + + u32 volume_rate, + pan_rate; + + v4f spacial_falloff; /* xyz, range */ - if( inf->flags & AUDIO_FLAG_SPACIAL_3D ) - { - v4f wpos; - v3_copy( inf->pos, wpos ); - wpos[3] = 1.0f; - m4x4_mulv( mtx_pv, wpos, wpos ); - - if( wpos[3] <= 0.0f ) - goto projected_behind; - - v2_muls( wpos, (1.0f/wpos[3]) * 0.5f, wpos ); - v2_add( wpos, (v2f){ 0.5f, 0.5f }, wpos ); - - ui_rect wr; - wr[0] = wpos[0] * vg.window_x; - wr[1] = (1.0f-wpos[1]) * vg.window_y; - wr[2] = 100; - wr[3] = 17; - - for( int j=0; j<12; j++ ) - { - int collide = 0; - for( int k=0; k= wk[0])) && - ((wr[1] <= wk[1]+wk[3]) && (wr[1]+wr[3] >= wk[1])) ) - { - collide = 1; - break; - } - } - - if( !collide ) - break; - else - wr[1] += 18; - } - - ui_text( wr, perf, 1, 0 ); - - ui_rect_copy( wr, overlap_buffer[ overlap_length ++ ] ); - } - } - -projected_behind: - - ui_end_down(); - vg_uictx.cursor[1] += 1; - } -} - -#endif /* VG_AUDIO_H */ + audio_lfo *lfo; + float lfo_amount; + } + _, editable_state; + u32 editble_state_write_mask; + } + channels[ AUDIO_CHANNELS ]; + + int debug_ui, debug_ui_3d, debug_dsp, dsp_enabled; + + v3f internal_listener_pos, + internal_listener_ears, + internal_listener_velocity, + + external_listener_pos, + external_listener_ears, + external_lister_velocity; + + float internal_global_volume, + external_global_volume; +} +extern vg_audio; + +void audio_clip_load( audio_clip *clip, void *lin_alloc ); +void audio_clip_loadn( audio_clip *arr, int count, void *lin_alloc ); + +void vg_audio_register(void); +void vg_audio_device_init(void); +void vg_audio_init(void); +void vg_audio_free(void); + +void audio_lock(void); +void audio_unlock(void); + +void audio_channel_init( audio_channel *ch, audio_clip *clip, u32 flags ); +void audio_channel_group( audio_channel *ch, u16 group ); +void audio_channel_world( audio_channel *ch, u8 world_id ); +audio_channel *audio_get_first_idle_channel(void); +audio_channel *audio_get_group_idle_channel( u16 group, u32 max_count ); +audio_channel *audio_get_group_first_active_channel( u16 group ); +int audio_channel_finished( audio_channel *ch ); +audio_channel *audio_relinquish_channel( audio_channel *ch ); +void audio_channel_slope_volume( audio_channel *ch, f32 length, f32 new_vol ); +void audio_channel_set_sampling_rate( audio_channel *ch, float rate ); +void audio_channel_edit_volume( audio_channel *ch, f32 new_vol, int instant ); +audio_channel *audio_channel_fadeout( audio_channel *ch, float length ); +void audio_channel_fadein( audio_channel *ch, float length ); +audio_channel *audio_channel_crossfade( audio_channel *ch, + audio_clip *new_clip, + float length, u32 flags ); +void audio_channel_sidechain_lfo( audio_channel *ch, int lfo_id, f32 amount ); +void audio_channel_set_spacial( audio_channel *ch, v3f co, float range ); +int audio_oneshot_3d( audio_clip *clip, v3f position, f32 range, f32 volume ); +int audio_oneshot( audio_clip *clip, f32 volume, f32 pan ); +void audio_set_lfo_wave( int id, enum lfo_wave_type type, f32 coefficient ); +void audio_set_lfo_frequency( int id, float freq ); +int audio_channel_load_source( audio_channel *ch ); + +void audio_debug_ui( + +#ifdef VG_3D + m4x4f +#else + m3x3f +#endif + mtx_pv );