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[BGM] correct default ADSRs

This commit is contained in:
Luke Hubmayer-Werner 2024-07-27 17:19:32 +09:30
parent d58ee06bae
commit c2bd6a8abd
5 changed files with 34 additions and 26 deletions
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4
data/5/addresses_SNES_PSX.tsv
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@ -15,7 +15,7 @@ sfx_brr_data 0x041E41 270 of u8 Use the below SPC pointers
bytelength_sfx_brr_pointers 0x041F4F u16 Used by the memcpy routine that copies the below data to the SPC (0x0020 = 32 bytes)
sfx_brr_pointers 0x041F51 8 of 2 of u16 SPC memory addresses not ROM. Start address followed by loop address.
bytelength_sfx_adsrs 0x041F71 u16 0x0010 = 16 bytes
sfx_adsrs 0x041F73 8 of 4 of u4
sfx_adsrs 0x041F73 8 of ADSR
bytelength_sfx_samplerates 0x041F83 u16 0x0010 = 16 bytes
sfx_samplerates 0x041F85 8 of u16
bytelength_sfx_data 0x041F95 u16 0x1C00 = 7168 bytes
@ -25,7 +25,7 @@ bgm_song_pointers 0x043B97 72 of u24
bgm_instrument_brr_pointers 0x043C6F 35 of u24
bgm_instrument_loop_starts 0x043CD8 35 of u16
bgm_instrument_samplerates 0x043D1E 35 of u16
bgm_instrument_adsrs 0x043D64 35 of 4 of u4
bgm_instrument_adsrs 0x043D64 35 of ADSR
bgm_instrument_indices 0x043DAA 72 of 16 of u16 length 0x900
worldmap_compressed_tilesets 0x070000 tilesets 0 up to 0x434

1 Label SNES PSX_file PSX_offset format Comment
15 bytelength_sfx_brr_pointers 0x041F4F u16 Used by the memcpy routine that copies the below data to the SPC (0x0020 = 32 bytes)
16 sfx_brr_pointers 0x041F51 8 of 2 of u16 SPC memory addresses not ROM. Start address followed by loop address.
17 bytelength_sfx_adsrs 0x041F71 u16 0x0010 = 16 bytes
18 sfx_adsrs 0x041F73 8 of 4 of u4 8 of ADSR
19 bytelength_sfx_samplerates 0x041F83 u16 0x0010 = 16 bytes
20 sfx_samplerates 0x041F85 8 of u16
21 bytelength_sfx_data 0x041F95 u16 0x1C00 = 7168 bytes
25 bgm_instrument_brr_pointers 0x043C6F 35 of u24
26 bgm_instrument_loop_starts 0x043CD8 35 of u16
27 bgm_instrument_samplerates 0x043D1E 35 of u16
28 bgm_instrument_adsrs 0x043D64 35 of 4 of u4 35 of ADSR
29 bgm_instrument_indices 0x043DAA 72 of 16 of u16 length 0x900
30
31 worldmap_compressed_tilesets 0x070000 tilesets 0 up to 0x434

7
data/structs_SNES_stubs.tsv
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@ -24,3 +24,10 @@ u5 r5
u5 g5
u5 b5
u1 0
struct ADSR
u4 attack_rate
u3 decay_rate
u1 enabled
u5 sustain_rate
u3 sustain_level

Can't render this file because it has a wrong number of fields in line 2.

31
scripts/MusicRenderer.gd
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@ -1,8 +1,5 @@
#warning-ignore-all:shadowed_variable
extends Node
const SOUND_LOADER := preload('res://scripts/loaders/SoundLoader.gd')
const SPC_DECAY_CURVE := SOUND_LOADER.SPC_DECAY_CURVE
const SPC_DECAY_CURVE_ENTRIES := SOUND_LOADER.SPC_DECAY_CURVE_ENTRIES
const music := preload('res://scripts/loaders/snes/music_ff5.gd')
const EventType := music.EventType
var MUSIC := music.new()
@ -21,15 +18,6 @@ class NoteEvent:
var adsr_sustain_rate: int
static func get_adsr_decay_total_periods(adsr_sustain_level: int) -> int:
# Set decay_total_periods based on sustain_level
var target_env = adsr_sustain_level << 8 # SL is 3bit, and is compared to top 3 bits of 11bit envelope to determine when decay ends
for i in SPC_DECAY_CURVE_ENTRIES:
if SPC_DECAY_CURVE[i] <= target_env:
return i
return SPC_DECAY_CURVE_ENTRIES
class TrackCurve: # built-in Curve class is too restrictive for this
var default: float
var entries: PoolVector3Array
@ -133,6 +121,7 @@ static func render_channels(tracks: Array, inst_map: Array, _debug_name := 'none
# then once all the global tracks are known, as well as the longest unlooped length,
# do a second pass to generate the final events
# self.print_channel_events(inst_map)
var all_adsr_decay_total_periods: PoolIntArray = SoundLoader.all_adsr_decay_total_periods
var sample_default_adsrs = RomLoader.snes_data.sfx_adsrs + RomLoader.snes_data.bgm_instrument_adsrs # TODO: UNHARDCODE THIS
var all_note_events = []
@ -289,23 +278,23 @@ static func render_channels(tracks: Array, inst_map: Array, _debug_name := 'none
current_instrument = inst_map[current_instrument-0x20] - 1 + SoundLoader.SFX_NUM
if current_instrument < len(sample_default_adsrs) and current_instrument > 0:
var adsr = sample_default_adsrs[current_instrument]
current_adsr_attack_rate = adsr[0]
current_adsr_decay_rate = adsr[1]
current_adsr_decay_total_periods = get_adsr_decay_total_periods(adsr[2])
current_adsr_sustain_rate = adsr[3]
current_adsr_attack_rate = adsr.attack_rate
current_adsr_decay_rate = adsr.decay_rate
current_adsr_sustain_rate = adsr.sustain_rate
current_adsr_decay_total_periods = all_adsr_decay_total_periods[adsr.sustain_level]
EventType.ADSR_DEFAULT: # TODO - Investigate actual scaling and order
if current_instrument < len(sample_default_adsrs) and current_instrument > 0:
var adsr = sample_default_adsrs[current_instrument]
current_adsr_attack_rate = adsr[0]
current_adsr_decay_rate = adsr[1]
current_adsr_decay_total_periods = get_adsr_decay_total_periods(adsr[2])
current_adsr_sustain_rate = adsr[3]
current_adsr_attack_rate = adsr.attack_rate
current_adsr_decay_rate = adsr.decay_rate
current_adsr_sustain_rate = adsr.sustain_rate
current_adsr_decay_total_periods = all_adsr_decay_total_periods[adsr.sustain_level]
EventType.ADSR_ATTACK_RATE:
current_adsr_attack_rate = event[1]
EventType.ADSR_DECAY_RATE:
current_adsr_decay_rate = event[1]
EventType.ADSR_SUSTAIN_LEVEL:
current_adsr_decay_total_periods = get_adsr_decay_total_periods(event[1])
current_adsr_decay_total_periods = all_adsr_decay_total_periods[event[1]]
EventType.ADSR_SUSTAIN_RATE:
current_adsr_sustain_rate = event[1]
EventType.VIBRATO_ON:

13
scripts/loaders/SoundLoader.gd
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@ -33,6 +33,19 @@ const SPC_PERIOD_TABLE_LEN := len(SPC_PERIOD_TABLE) # 32
# Attack increases by 0x20==32 per period, or 0x400==1024 at the highest value of 15, and the Attack phase ends when envelope > 0x7FF==2047
# const ATTACK_PERIODS := PoolIntArray([64*2048, 64*1280, 64*768, 64*512, 64*320, 64*192, 64*128, 64*80, 64*48, 64*32, 64*20, 64*12, 64*8, 64*5, 64*3, 2*1])
# const DECAY_PERIODS := PoolIntArray([64, 40, 24, 16, 10, 6, 4, 2])
static func get_adsr_decay_total_periods(adsr_sustain_level: int) -> int:
# Set decay_total_periods based on sustain_level
var target_env = adsr_sustain_level << 8 # SL is 3bit, and is compared to top 3 bits of 11bit envelope to determine when decay ends
for i in SPC_DECAY_CURVE_ENTRIES:
if SPC_DECAY_CURVE[i] <= target_env:
return i
return SPC_DECAY_CURVE_ENTRIES
static func generate_all_adsr_decay_total_periods() -> PoolIntArray:
var output = PoolIntArray()
for i in 8:
output.append(get_adsr_decay_total_periods(i))
return output
onready var all_adsr_decay_total_periods := generate_all_adsr_decay_total_periods()
# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
# !!! Testing a workaround for a Godot 3.x AudioStreamSample playback: !!!

5
shaders/audio_renderer.gdshader
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@ -238,9 +238,8 @@ highp vec4 render_song(highp sampler2D tex, highp int smp) {
highp vec4 tex3 = get_midi_texel(tex, event_idx, row+3.0);
highp vec4 tex4 = get_midi_texel(tex, event_idx, row+4.0);
highp vec4 next_tex1 = get_midi_texel(tex, event_idx+1.0, row+1.0);
smp_event_start = retime_smp(unpack_int32(tex0));
// highp int smp_event_end = retime_smp(unpack_int32(tex1));
highp int smp_note_start = retime_smp(unpack_int32(tex1));
smp_event_start = retime_smp(unpack_int32(tex0));
highp int smp_note_start = retime_smp(unpack_int32(tex1));
highp int next_smp_note_start = retime_smp(unpack_int32(next_tex1));
// For now, just branch this