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Shipwright/soh/src/code/audio_seqplayer.c
M4xw 39cc86c260 git subrepo clone https://github.com/HarbourMasters/soh.git 
subrepo:
  subdir:   "soh"
  merged:   "ba904bbd0"
upstream:
  origin:   "https://github.com/HarbourMasters/soh.git"
  branch:   "master"
  commit:   "ba904bbd0"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"
2022-03-22 02:51:23 +01:00

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#include <stdlib.h>
#include "ultra64.h"
#include "global.h"
#define PORTAMENTO_IS_SPECIAL(x) ((x).mode & 0x80)
#define PORTAMENTO_MODE(x) ((x).mode & ~0x80)
#define PORTAMENTO_MODE_1 1
#define PORTAMENTO_MODE_2 2
#define PORTAMENTO_MODE_3 3
#define PORTAMENTO_MODE_4 4
#define PORTAMENTO_MODE_5 5
u8 AudioSeq_ScriptReadU8(SeqScriptState* state);
s16 AudioSeq_ScriptReadS16(SeqScriptState* state);
u16 AudioSeq_ScriptReadCompressedU16(SeqScriptState* state);
u8 AudioSeq_GetInstrument(SequenceChannel* channel, u8 instId, Instrument** instOut, AdsrSettings* adsr);
u8 D_80130520[] = {
0x81, 0x00, 0x81, 0x01, 0x00, 0x00, 0x00, 0x81, 0x01, 0x01, 0x01, 0x42, 0x81, 0xC2, 0x00, 0x00,
0x00, 0x01, 0x81, 0x00, 0x00, 0x00, 0x01, 0x42, 0x01, 0x01, 0x01, 0x81, 0x01, 0x01, 0x81, 0x81,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x81, 0x01, 0x01, 0x01, 0x81, 0x01,
0x01, 0x03, 0x03, 0x01, 0x00, 0x01, 0x01, 0x81, 0x03, 0x01, 0x00, 0x02, 0x00, 0x01, 0x01, 0x82,
0x00, 0x01, 0x01, 0x01, 0x01, 0x81, 0x00, 0x00, 0x01, 0x81, 0x81, 0x81, 0x81, 0x00, 0x00, 0x00,
};
u16 AudioSeq_GetScriptControlFlowArgument(SeqScriptState* state, u8 arg1) {
u8 temp_v0 = D_80130520[arg1 - 0xB0];
u8 loBits = temp_v0 & 3;
u16 ret = 0;
if (loBits == 1) {
if ((temp_v0 & 0x80) == 0) {
ret = AudioSeq_ScriptReadU8(state);
} else {
ret = AudioSeq_ScriptReadS16(state);
}
}
return ret;
}
s32 AudioSeq_HandleScriptFlowControl(SequencePlayer* seqPlayer, SeqScriptState* state, s32 cmd, s32 arg) {
switch (cmd) {
case 0xFF:
if (state->depth == 0) {
return -1;
}
state->pc = state->stack[--state->depth];
break;
case 0xFD:
return AudioSeq_ScriptReadCompressedU16(state);
case 0xFE:
return 1;
case 0xFC:
state->stack[state->depth++] = state->pc;
state->pc = seqPlayer->seqData + (u16)arg;
break;
case 0xF8:
state->remLoopIters[state->depth] = arg;
state->stack[state->depth++] = state->pc;
break;
case 0xF7:
state->remLoopIters[state->depth - 1]--;
if (state->remLoopIters[state->depth - 1] != 0) {
state->pc = state->stack[state->depth - 1];
} else {
state->depth--;
}
break;
case 0xF6:
state->depth--;
break;
case 0xF5:
case 0xF9:
case 0xFA:
case 0xFB:
if (cmd == 0xFA && state->value != 0) {
break;
}
if (cmd == 0xF9 && state->value >= 0) {
break;
}
if (cmd == 0xF5 && state->value < 0) {
break;
}
state->pc = seqPlayer->seqData + (u16)arg;
break;
case 0xF2:
case 0xF3:
case 0xF4:
if (cmd == 0xF3 && state->value != 0) {
break;
}
if (cmd == 0xF2 && state->value >= 0) {
break;
}
state->pc += (s8)(arg & 0xFF);
break;
}
return 0;
}
void AudioSeq_InitSequenceChannel(SequenceChannel* channel) {
s32 i;
if (channel == &gAudioContext.sequenceChannelNone) {
return;
}
channel->enabled = false;
channel->finished = false;
channel->stopScript = false;
channel->stopSomething2 = false;
channel->hasInstrument = false;
channel->stereoHeadsetEffects = false;
channel->transposition = 0;
channel->largeNotes = false;
channel->bookOffset = 0;
channel->stereo.asByte = 0;
channel->changes.asByte = 0xFF;
channel->scriptState.depth = 0;
channel->newPan = 0x40;
channel->panChannelWeight = 0x80;
channel->velocityRandomVariance = 0;
channel->gateTimeRandomVariance = 0;
channel->noteUnused = NULL;
channel->reverbIndex = 0;
channel->reverb = 0;
channel->unk_0C = 0;
channel->notePriority = 3;
channel->someOtherPriority = 1;
channel->delay = 0;
channel->adsr.envelope = gDefaultEnvelope;
channel->adsr.releaseRate = 0xF0;
channel->adsr.sustain = 0;
channel->vibratoRateTarget = 0x800;
channel->vibratoRateStart = 0x800;
channel->vibratoExtentTarget = 0;
channel->vibratoExtentStart = 0;
channel->vibratoRateChangeDelay = 0;
channel->vibratoExtentChangeDelay = 0;
channel->vibratoDelay = 0;
channel->filter = NULL;
channel->unk_20 = 0;
channel->unk_0F = 0;
channel->volume = 1.0f;
channel->volumeScale = 1.0f;
channel->freqScale = 1.0f;
for (i = 0; i < 8; i++) {
channel->soundScriptIO[i] = -1;
}
channel->unused = false;
Audio_InitNoteLists(&channel->notePool);
}
s32 AudioSeq_SeqChannelSetLayer(SequenceChannel* channel, s32 layerIdx) {
SequenceLayer* layer;
if (channel->layers[layerIdx] == NULL) {
SequenceLayer* layer;
layer = AudioSeq_AudioListPopBack(&gAudioContext.layerFreeList);
channel->layers[layerIdx] = layer;
if (layer == NULL) {
channel->layers[layerIdx] = NULL;
return -1;
}
} else {
Audio_SeqLayerNoteDecay(channel->layers[layerIdx]);
}
layer = channel->layers[layerIdx];
layer->channel = channel;
layer->adsr = channel->adsr;
layer->adsr.releaseRate = 0;
layer->enabled = true;
layer->finished = false;
layer->stopSomething = false;
layer->continuousNotes = false;
layer->bit3 = false;
layer->ignoreDrumPan = false;
layer->bit1 = false;
layer->notePropertiesNeedInit = false;
layer->stereo.asByte = 0;
layer->portamento.mode = 0;
layer->scriptState.depth = 0;
layer->gateTime = 0x80;
layer->pan = 0x40;
layer->transposition = 0;
layer->delay = 0;
layer->gateDelay = 0;
layer->delay2 = 0;
layer->note = NULL;
layer->instrument = NULL;
layer->freqScale = 1.0f;
layer->unk_34 = 1.0f;
layer->velocitySquare2 = 0.0f;
layer->instOrWave = 0xFF;
return 0;
}
void AudioSeq_SeqLayerDisable(SequenceLayer* layer) {
if (layer != NULL) {
if (layer->channel != &gAudioContext.sequenceChannelNone && layer->channel->seqPlayer->finished == 1) {
Audio_SeqLayerNoteRelease(layer);
} else {
Audio_SeqLayerNoteDecay(layer);
}
layer->enabled = false;
layer->finished = true;
}
}
void AudioSeq_SeqLayerFree(SequenceChannel* channel, s32 layerIdx) {
SequenceLayer* layer = channel->layers[layerIdx];
if (layer != NULL) {
AudioSeq_AudioListPushBack(&gAudioContext.layerFreeList, &layer->listItem);
AudioSeq_SeqLayerDisable(layer);
channel->layers[layerIdx] = NULL;
}
}
void AudioSeq_SequenceChannelDisable(SequenceChannel* channel) {
s32 i;
for (i = 0; i < 4; i++) {
AudioSeq_SeqLayerFree(channel, i);
}
Audio_NotePoolClear(&channel->notePool);
channel->enabled = false;
channel->finished = true;
}
void AudioSeq_SequencePlayerSetupChannels(SequencePlayer* seqPlayer, u16 channelBits) {
SequenceChannel* channel;
s32 i;
for (i = 0; i < 0x10; i++) {
if (channelBits & 1) {
channel = seqPlayer->channels[i];
channel->fontId = seqPlayer->defaultFont;
channel->muteBehavior = seqPlayer->muteBehavior;
channel->noteAllocPolicy = seqPlayer->noteAllocPolicy;
}
channelBits = channelBits >> 1;
}
}
void AudioSeq_SequencePlayerDisableChannels(SequencePlayer* seqPlayer, u16 channelBitsUnused) {
SequenceChannel* channel;
s32 i;
for (i = 0; i < 0x10; i++) {
channel = seqPlayer->channels[i];
if (IS_SEQUENCE_CHANNEL_VALID(channel) == 1) {
AudioSeq_SequenceChannelDisable(channel);
}
}
}
void AudioSeq_SequenceChannelEnable(SequencePlayer* seqPlayer, u8 channelIdx, void* script) {
SequenceChannel* channel = seqPlayer->channels[channelIdx];
s32 i;
channel->enabled = true;
channel->finished = false;
channel->scriptState.depth = 0;
channel->scriptState.pc = script;
channel->delay = 0;
for (i = 0; i < 4; i++) {
if (channel->layers[i] != NULL) {
AudioSeq_SeqLayerFree(channel, i);
}
}
}
void AudioSeq_SequencePlayerDisableAsFinished(SequencePlayer* seqPlayer) {
seqPlayer->finished = true;
AudioSeq_SequencePlayerDisable(seqPlayer);
}
void AudioSeq_SequencePlayerDisable(SequencePlayer* seqPlayer) {
AudioSeq_SequencePlayerDisableChannels(seqPlayer, 0xFFFF);
Audio_NotePoolClear(&seqPlayer->notePool);
if (!seqPlayer->enabled) {
return;
}
seqPlayer->enabled = false;
seqPlayer->finished = true;
if (AudioLoad_IsSeqLoadComplete(seqPlayer->seqId)) {
AudioLoad_SetSeqLoadStatus(seqPlayer->seqId, 3);
}
if (AudioLoad_IsFontLoadComplete(seqPlayer->defaultFont)) {
AudioLoad_SetFontLoadStatus(seqPlayer->defaultFont, 4);
}
if (seqPlayer->defaultFont == gAudioContext.fontCache.temporary.entries[0].id) {
gAudioContext.fontCache.temporary.nextSide = 0;
} else if (seqPlayer->defaultFont == gAudioContext.fontCache.temporary.entries[1].id) {
gAudioContext.fontCache.temporary.nextSide = 1;
}
}
void AudioSeq_AudioListPushBack(AudioListItem* list, AudioListItem* item) {
if (item->prev == NULL) {
list->prev->next = item;
item->prev = list->prev;
item->next = list;
list->prev = item;
list->u.count++;
item->pool = list->pool;
}
}
void* AudioSeq_AudioListPopBack(AudioListItem* list) {
AudioListItem* item = list->prev;
if (item == list) {
return NULL;
}
item->prev->next = list;
list->prev = item->prev;
item->prev = NULL;
list->u.count--;
return item->u.value;
}
void AudioSeq_InitLayerFreelist(void) {
s32 i;
gAudioContext.layerFreeList.prev = &gAudioContext.layerFreeList;
gAudioContext.layerFreeList.next = &gAudioContext.layerFreeList;
gAudioContext.layerFreeList.u.count = 0;
gAudioContext.layerFreeList.pool = NULL;
for (i = 0; i < ARRAY_COUNT(gAudioContext.sequenceLayers); i++) {
gAudioContext.sequenceLayers[i].listItem.u.value = &gAudioContext.sequenceLayers[i];
gAudioContext.sequenceLayers[i].listItem.prev = NULL;
AudioSeq_AudioListPushBack(&gAudioContext.layerFreeList, &gAudioContext.sequenceLayers[i].listItem);
}
}
u8 AudioSeq_ScriptReadU8(SeqScriptState* state) {
return *(state->pc++);
}
s16 AudioSeq_ScriptReadS16(SeqScriptState* state) {
s16 ret = *(state->pc++) << 8;
ret = *(state->pc++) | ret;
return ret;
}
u16 AudioSeq_ScriptReadCompressedU16(SeqScriptState* state) {
u16 ret = *(state->pc++);
if (ret & 0x80) {
ret = (ret << 8) & 0x7F00;
ret = *(state->pc++) | ret;
}
return ret;
}
void AudioSeq_SeqLayerProcessScriptStep1(SequenceLayer* layer);
s32 AudioSeq_SeqLayerProcessScriptStep2(SequenceLayer* layer);
s32 AudioSeq_SeqLayerProcessScriptStep3(SequenceLayer* layer, s32 cmd);
s32 AudioSeq_SeqLayerProcessScriptStep4(SequenceLayer* layer, s32 cmd);
s32 AudioSeq_SeqLayerProcessScriptStep5(SequenceLayer* layer, s32 sameSound);
void AudioSeq_SeqLayerProcessScript(SequenceLayer* layer) {
s32 val;
if (!layer->enabled) {
return;
}
if (layer->delay > 1) {
layer->delay--;
if (!layer->stopSomething && layer->delay <= layer->gateDelay) {
Audio_SeqLayerNoteDecay(layer);
layer->stopSomething = true;
}
return;
}
AudioSeq_SeqLayerProcessScriptStep1(layer);
val = AudioSeq_SeqLayerProcessScriptStep2(layer);
if (val == -1) {
return;
}
val = AudioSeq_SeqLayerProcessScriptStep3(layer, val);
if (val != -1) {
val = AudioSeq_SeqLayerProcessScriptStep4(layer, val);
}
if (val != -1) {
AudioSeq_SeqLayerProcessScriptStep5(layer, val);
}
if (layer->stopSomething == true) {
if ((layer->note != NULL) || layer->continuousNotes) {
Audio_SeqLayerNoteDecay(layer);
}
}
}
void AudioSeq_SeqLayerProcessScriptStep1(SequenceLayer* layer) {
if (!layer->continuousNotes) {
Audio_SeqLayerNoteDecay(layer);
} else if (layer->note != NULL && layer->note->playbackState.wantedParentLayer == layer) {
Audio_SeqLayerNoteDecay(layer);
}
if (PORTAMENTO_MODE(layer->portamento) == PORTAMENTO_MODE_1 ||
PORTAMENTO_MODE(layer->portamento) == PORTAMENTO_MODE_2) {
layer->portamento.mode = 0;
}
layer->notePropertiesNeedInit = true;
}
s32 AudioSeq_SeqLayerProcessScriptStep5(SequenceLayer* layer, s32 sameSound) {
if (!layer->stopSomething && layer->sound != NULL && layer->sound->sample->codec == CODEC_S16_INMEMORY &&
layer->sound->sample->medium != MEDIUM_RAM) {
layer->stopSomething = true;
return -1;
}
if (layer->continuousNotes == true && layer->bit1 == 1) {
return 0;
}
if (layer->continuousNotes == true && layer->note != NULL && layer->bit3 && sameSound == true &&
layer->note->playbackState.parentLayer == layer) {
if (layer->sound == NULL) {
Audio_InitSyntheticWave(layer->note, layer);
}
} else {
if (sameSound == false) {
Audio_SeqLayerNoteDecay(layer);
}
layer->note = Audio_AllocNote(layer);
if (layer->note != NULL && layer->note->playbackState.parentLayer == layer) {
Audio_NoteVibratoInit(layer->note);
}
}
if (layer->note != NULL && layer->note->playbackState.parentLayer == layer) {
Note* note = layer->note;
Audio_NotePortamentoInit(note);
}
return 0;
}
s32 AudioSeq_SeqLayerProcessScriptStep2(SequenceLayer* layer) {
SequenceChannel* channel = layer->channel;
SeqScriptState* state = &layer->scriptState;
SequencePlayer* seqPlayer = channel->seqPlayer;
u16 sp3A;
u8 cmd;
for (;;) {
cmd = AudioSeq_ScriptReadU8(state);
if (cmd < 0xC1) {
return cmd;
}
if (cmd >= 0xF2) {
u16 arg = AudioSeq_GetScriptControlFlowArgument(state, cmd);
if (AudioSeq_HandleScriptFlowControl(seqPlayer, state, cmd, arg) == 0) {
continue;
}
AudioSeq_SeqLayerDisable(layer);
return -1;
}
switch (cmd) {
case 0xC1: // layer_setshortnotevelocity
case 0xCA: // layer_setpan
{
u8 tempByte = *(state->pc++);
if (cmd == 0xC1) {
layer->velocitySquare = (f32)(tempByte * tempByte) / 16129.0f;
} else {
layer->pan = tempByte;
}
break;
}
case 0xC9: // layer_setshortnotegatetime
case 0xC2: // layer_transpose; set transposition in semitones
{
u8 tempByte = *(state->pc++);
if (cmd == 0xC9) {
layer->gateTime = tempByte;
} else {
layer->transposition = tempByte;
}
break;
}
case 0xC4: // layer_continuousnoteson
case 0xC5: // layer_continuousnotesoff
if (cmd == 0xC4) {
layer->continuousNotes = true;
} else {
layer->continuousNotes = false;
}
layer->bit1 = false;
Audio_SeqLayerNoteDecay(layer);
break;
case 0xC3: // layer_setshortnotedefaultdelay
sp3A = AudioSeq_ScriptReadCompressedU16(state);
layer->shortNoteDefaultDelay = sp3A;
break;
case 0xC6: // layer_setinstr
cmd = AudioSeq_ScriptReadU8(state);
if (cmd >= 0x7E) {
if (cmd == 0x7E) {
layer->instOrWave = 1;
} else if (cmd == 0x7F) {
layer->instOrWave = 0;
} else {
layer->instOrWave = cmd;
layer->instrument = NULL;
}
if (cmd == 0xFF) {
layer->adsr.releaseRate = 0;
}
break;
}
if ((layer->instOrWave = AudioSeq_GetInstrument(channel, cmd, &layer->instrument, &layer->adsr)) == 0) {
layer->instOrWave = 0xFF;
}
break;
case 0xC7: // layer_portamento
layer->portamento.mode = AudioSeq_ScriptReadU8(state);
cmd = AudioSeq_ScriptReadU8(state);
cmd += channel->transposition;
cmd += layer->transposition;
cmd += seqPlayer->transposition;
if (cmd >= 0x80) {
cmd = 0;
}
layer->portamentoTargetNote = cmd;
// If special, the next param is u8 instead of var
if (PORTAMENTO_IS_SPECIAL(layer->portamento)) {
layer->portamentoTime = *(state->pc++);
break;
}
sp3A = AudioSeq_ScriptReadCompressedU16(state);
layer->portamentoTime = sp3A;
break;
case 0xC8: // layer_disableportamento
layer->portamento.mode = 0;
break;
case 0xCB:
sp3A = AudioSeq_ScriptReadS16(state);
layer->adsr.envelope = (AdsrEnvelope*)(seqPlayer->seqData + sp3A);
// fallthrough
case 0xCF:
layer->adsr.releaseRate = AudioSeq_ScriptReadU8(state);
break;
case 0xCC:
layer->ignoreDrumPan = true;
break;
case 0xCD:
layer->stereo.asByte = AudioSeq_ScriptReadU8(state);
break;
case 0xCE: {
u8 tempByte = AudioSeq_ScriptReadU8(state);
layer->unk_34 = gBendPitchTwoSemitonesFrequencies[(tempByte + 0x80) & 0xFF];
break;
}
default:
switch (cmd & 0xF0) {
case 0xD0: // layer_setshortnotevelocityfromtable
sp3A = seqPlayer->shortNoteVelocityTable[cmd & 0xF];
layer->velocitySquare = (f32)(sp3A * sp3A) / 16129.0f;
break;
case 0xE0: // layer_setshortnotegatetimefromtable
layer->gateTime = (u8)seqPlayer->shortNoteGateTimeTable[cmd & 0xF];
break;
}
}
}
}
s32 AudioSeq_SeqLayerProcessScriptStep4(SequenceLayer* layer, s32 cmd) {
s32 sameSound = true;
s32 instOrWave;
s32 speed;
f32 temp_f14;
f32 temp_f2;
Portamento* portamento;
f32 freqScale;
f32 freqScale2;
SoundFontSound* sound;
Instrument* instrument;
Drum* drum;
s32 pad;
SequenceChannel* channel;
SequencePlayer* seqPlayer;
u8 semitone = cmd;
u16 sfxId;
s32 semitone2;
s32 vel;
f32 time;
f32 tuning;
instOrWave = layer->instOrWave;
channel = layer->channel;
seqPlayer = channel->seqPlayer;
if (instOrWave == 0xFF) {
if (!channel->hasInstrument) {
return -1;
}
instOrWave = channel->instOrWave;
}
switch (instOrWave) {
case 0:
semitone += channel->transposition + layer->transposition;
layer->semitone = semitone;
drum = Audio_GetDrum(channel->fontId, semitone);
if (drum == NULL) {
layer->stopSomething = true;
layer->delay2 = layer->delay;
return -1;
}
sound = &drum->sound;
layer->adsr.envelope = drum->envelope;
layer->adsr.releaseRate = (u8)drum->releaseRate;
if (!layer->ignoreDrumPan) {
layer->pan = drum->pan;
}
layer->sound = sound;
layer->freqScale = sound->tuning;
break;
case 1:
layer->semitone = semitone;
sfxId = (layer->transposition << 6) + semitone;
sound = Audio_GetSfx(channel->fontId, sfxId);
if (sound == NULL) {
layer->stopSomething = true;
layer->delay2 = layer->delay + 1;
return -1;
}
layer->sound = sound;
layer->freqScale = sound->tuning;
break;
default:
semitone += seqPlayer->transposition + channel->transposition + layer->transposition;
semitone2 = semitone;
layer->semitone = semitone;
if (semitone >= 0x80) {
layer->stopSomething = true;
return -1;
}
if (layer->instOrWave == 0xFF) {
instrument = channel->instrument;
} else {
instrument = layer->instrument;
}
if (layer->portamento.mode != 0) {
portamento = &layer->portamento;
vel = (semitone > layer->portamentoTargetNote) ? semitone : layer->portamentoTargetNote;
if (instrument != NULL) {
sound = Audio_InstrumentGetSound(instrument, vel);
sameSound = (layer->sound == sound);
layer->sound = sound;
tuning = sound->tuning;
} else {
layer->sound = NULL;
tuning = 1.0f;
if (instOrWave >= 0xC0) {
layer->sound = &gAudioContext.synthesisReverbs[instOrWave - 0xC0].sound;
}
}
temp_f2 = gNoteFrequencies[semitone2] * tuning;
temp_f14 = gNoteFrequencies[layer->portamentoTargetNote] * tuning;
switch (PORTAMENTO_MODE(*portamento)) {
case PORTAMENTO_MODE_1:
case PORTAMENTO_MODE_3:
case PORTAMENTO_MODE_5:
freqScale2 = temp_f2;
freqScale = temp_f14;
break;
case PORTAMENTO_MODE_2:
case PORTAMENTO_MODE_4:
freqScale = temp_f2;
freqScale2 = temp_f14;
break;
default:
freqScale = temp_f2;
freqScale2 = temp_f2;
break;
}
portamento->extent = (freqScale2 / freqScale) - 1.0f;
if (PORTAMENTO_IS_SPECIAL(*portamento)) {
speed = seqPlayer->tempo * 0x8000 / gAudioContext.tempoInternalToExternal;
if (layer->delay != 0) {
speed = speed * 0x100 / (layer->delay * layer->portamentoTime);
}
} else {
speed = 0x20000 / (layer->portamentoTime * gAudioContext.audioBufferParameters.updatesPerFrame);
}
if (speed >= 0x7FFF) {
speed = 0x7FFF;
} else if (speed < 1) {
speed = 1;
}
portamento->speed = speed;
portamento->cur = 0;
layer->freqScale = freqScale;
if (PORTAMENTO_MODE(*portamento) == PORTAMENTO_MODE_5) {
layer->portamentoTargetNote = semitone;
}
break;
}
if (instrument != NULL) {
sound = Audio_InstrumentGetSound(instrument, semitone);
sameSound = (sound == layer->sound);
layer->sound = sound;
layer->freqScale = gNoteFrequencies[semitone2] * sound->tuning;
} else {
layer->sound = NULL;
layer->freqScale = gNoteFrequencies[semitone2];
if (instOrWave >= 0xC0) {
layer->sound = &gAudioContext.synthesisReverbs[instOrWave - 0xC0].sound;
}
}
break;
}
layer->delay2 = layer->delay;
layer->freqScale *= layer->unk_34;
if (layer->delay == 0) {
if (layer->sound != NULL) {
time = (f32)layer->sound->sample->loop->end;
} else {
time = 0.0f;
}
time *= seqPlayer->tempo;
time *= gAudioContext.unk_2870;
time /= layer->freqScale;
if (time > 32766.0f) {
time = 32766.0f;
}
layer->gateDelay = 0;
layer->delay = (u16)(s32)time + 1;
if (layer->portamento.mode != 0) {
// (It's a bit unclear if 'portamento' has actually always been
// set when this is reached...)
if (PORTAMENTO_IS_SPECIAL(*portamento)) {
s32 speed2;
speed2 = seqPlayer->tempo * 0x8000 / gAudioContext.tempoInternalToExternal;
speed2 = speed2 * 0x100 / (layer->delay * layer->portamentoTime);
if (speed2 >= 0x7FFF) {
speed2 = 0x7FFF;
} else if (speed2 < 1) {
speed2 = 1;
}
portamento->speed = speed2;
}
}
}
return sameSound;
}
s32 AudioSeq_SeqLayerProcessScriptStep3(SequenceLayer* layer, s32 cmd) {
SeqScriptState* state = &layer->scriptState;
u16 delay;
s32 velocity;
SequenceChannel* channel = layer->channel;
SequencePlayer* seqPlayer = channel->seqPlayer;
s32 intDelta;
f32 floatDelta;
if (cmd == 0xC0) {
layer->delay = AudioSeq_ScriptReadCompressedU16(state);
layer->stopSomething = true;
layer->bit1 = false;
return -1;
}
layer->stopSomething = false;
if (channel->largeNotes == 1) {
switch (cmd & 0xC0) {
case 0x00:
delay = AudioSeq_ScriptReadCompressedU16(state);
velocity = *(state->pc++);
layer->gateTime = *(state->pc++);
layer->lastDelay = delay;
break;
case 0x40:
delay = AudioSeq_ScriptReadCompressedU16(state);
velocity = *(state->pc++);
layer->gateTime = 0;
layer->lastDelay = delay;
break;
case 0x80:
delay = layer->lastDelay;
velocity = *(state->pc++);
layer->gateTime = *(state->pc++);
break;
}
if (velocity > 0x7F || velocity < 0) {
velocity = 0x7F;
}
layer->velocitySquare = (f32)velocity * (f32)velocity / 16129.0f;
cmd -= (cmd & 0xC0);
} else {
switch (cmd & 0xC0) {
case 0x00:
delay = AudioSeq_ScriptReadCompressedU16(state);
layer->lastDelay = delay;
break;
case 0x40:
delay = layer->shortNoteDefaultDelay;
break;
case 0x80:
delay = layer->lastDelay;
break;
}
cmd -= (cmd & 0xC0);
}
if (channel->velocityRandomVariance != 0) {
floatDelta =
layer->velocitySquare * (f32)(gAudioContext.audioRandom % channel->velocityRandomVariance) / 100.0f;
if ((gAudioContext.audioRandom & 0x8000) != 0) {
floatDelta = -floatDelta;
}
layer->velocitySquare2 = layer->velocitySquare + floatDelta;
if (layer->velocitySquare2 < 0.0f) {
layer->velocitySquare2 = 0.0f;
} else if (layer->velocitySquare2 > 1.0f) {
layer->velocitySquare2 = 1.0f;
}
} else {
layer->velocitySquare2 = layer->velocitySquare;
}
layer->delay = delay;
layer->gateDelay = (layer->gateTime * delay) >> 8;
if (channel->gateTimeRandomVariance != 0) {
//! @bug should probably be gateTimeRandomVariance
intDelta = (layer->gateDelay * (gAudioContext.audioRandom % channel->velocityRandomVariance)) / 100;
if ((gAudioContext.audioRandom & 0x4000) != 0) {
intDelta = -intDelta;
}
layer->gateDelay += intDelta;
if (layer->gateDelay < 0) {
layer->gateDelay = 0;
} else if (layer->gateDelay > layer->delay) {
layer->gateDelay = layer->delay;
}
}
if ((seqPlayer->muted && (channel->muteBehavior & (0x40 | 0x10)) != 0) || channel->stopSomething2) {
layer->stopSomething = true;
return -1;
}
if (seqPlayer->skipTicks != 0) {
layer->stopSomething = true;
return -1;
}
return cmd;
}
void AudioSeq_SetChannelPriorities(SequenceChannel* channel, u8 arg1) {
if ((arg1 & 0xF) != 0) {
channel->notePriority = arg1 & 0xF;
}
arg1 = arg1 >> 4;
if (arg1 != 0) {
channel->someOtherPriority = arg1;
}
}
u8 AudioSeq_GetInstrument(SequenceChannel* channel, u8 instId, Instrument** instOut, AdsrSettings* adsr) {
Instrument* inst = Audio_GetInstrumentInner(channel->fontId, instId);
if (inst == NULL) {
*instOut = NULL;
return 0;
}
adsr->envelope = inst->envelope;
adsr->releaseRate = inst->releaseRate;
*instOut = inst;
instId += 2;
return instId;
}
void AudioSeq_SetInstrument(SequenceChannel* channel, u8 instId) {
if (instId >= 0x80) {
channel->instOrWave = instId;
channel->instrument = NULL;
} else if (instId == 0x7F) {
channel->instOrWave = 0;
channel->instrument = (Instrument*)1;
} else if (instId == 0x7E) {
channel->instOrWave = 1;
channel->instrument = (Instrument*)2;
} else if ((channel->instOrWave = AudioSeq_GetInstrument(channel, instId, &channel->instrument, &channel->adsr)) ==
0) {
channel->hasInstrument = false;
return;
}
channel->hasInstrument = true;
}
void AudioSeq_SequenceChannelSetVolume(SequenceChannel* channel, u8 volume) {
channel->volume = (f32)(s32)volume / 127.0f;
}
void AudioSeq_SequenceChannelProcessScript(SequenceChannel* channel) {
s32 i;
u8* data;
u8* test;
SequencePlayer* seqPlayer;
if (channel->stopScript) {
goto exit_loop;
}
seqPlayer = channel->seqPlayer;
if (seqPlayer->muted && (channel->muteBehavior & 0x80)) {
return;
}
if (channel->delay >= 2) {
channel->delay--;
goto exit_loop;
}
while (true) {
SeqScriptState* scriptState = &channel->scriptState;
s32 param;
s16 pad1;
u16 offset;
u32 parameters[3];
s8 signedParam;
u8 command = AudioSeq_ScriptReadU8(scriptState);
u8 lowBits;
u8 highBits;
s32 result;
s32 pad2;
if (command >= 0xB0) {
highBits = D_80130520[(s32)command - 0xB0];
lowBits = highBits & 3;
for (i = 0; i < lowBits; i++, highBits <<= 1) {
if (!(highBits & 0x80)) {
parameters[i] = AudioSeq_ScriptReadU8(scriptState);
} else {
parameters[i] = AudioSeq_ScriptReadS16(scriptState);
}
}
if (command >= 0xF2) {
result = AudioSeq_HandleScriptFlowControl(seqPlayer, scriptState, command, parameters[0]);
if (result != 0) {
if (result == -1) {
AudioSeq_SequenceChannelDisable(channel);
} else {
channel->delay = result;
}
break;
}
} else {
switch (command) {
case 0xEA:
channel->stopScript = true;
goto exit_loop;
case 0xF1:
Audio_NotePoolClear(&channel->notePool);
command = (u8)parameters[0];
Audio_NotePoolFill(&channel->notePool, command);
break;
case 0xF0:
Audio_NotePoolClear(&channel->notePool);
break;
case 0xC2:
offset = (u16)parameters[0];
channel->dynTable = (void*)&seqPlayer->seqData[offset];
break;
case 0xC5:
if (scriptState->value != -1) {
data = (*channel->dynTable)[scriptState->value];
offset = (u16)((data[0] << 8) + data[1]);
channel->dynTable = (void*)&seqPlayer->seqData[offset];
}
break;
case 0xEB:
result = (u8)parameters[0];
command = (u8)parameters[0];
if (seqPlayer->defaultFont != 0xFF) {
offset = ((u16*)gAudioContext.sequenceFontTable)[seqPlayer->seqId];
lowBits = gAudioContext.sequenceFontTable[offset];
command = gAudioContext.sequenceFontTable[offset + lowBits - result];
}
if (AudioHeap_SearchCaches(FONT_TABLE, CACHE_EITHER, command)) {
channel->fontId = command;
}
parameters[0] = parameters[1];
// NOTE: Intentional fallthrough
case 0xC1:
command = (u8)parameters[0];
AudioSeq_SetInstrument(channel, command);
break;
case 0xC3:
channel->largeNotes = false;
break;
case 0xC4:
channel->largeNotes = true;
break;
case 0xDF:
command = (u8)parameters[0];
AudioSeq_SequenceChannelSetVolume(channel, command);
channel->changes.s.volume = true;
break;
case 0xE0:
command = (u8)parameters[0];
channel->volumeScale = (f32)(s32)command / 128.0f;
channel->changes.s.volume = true;
break;
case 0xDE:
offset = (u16)parameters[0];
channel->freqScale = (f32)(s32)offset / 32768.0f;
channel->changes.s.freqScale = true;
break;
case 0xD3:
command = (u8)parameters[0];
command += 0x80;
channel->freqScale = gBendPitchOneOctaveFrequencies[command];
channel->changes.s.freqScale = true;
break;
case 0xEE:
command = (u8)parameters[0];
command += 0x80;
channel->freqScale = gBendPitchTwoSemitonesFrequencies[command];
channel->changes.s.freqScale = true;
break;
case 0xDD:
command = (u8)parameters[0];
channel->newPan = command;
channel->changes.s.pan = true;
break;
case 0xDC:
command = (u8)parameters[0];
channel->panChannelWeight = command;
channel->changes.s.pan = true;
break;
case 0xDB:
signedParam = (s8)parameters[0];
channel->transposition = signedParam;
break;
case 0xDA:
offset = (u16)parameters[0];
channel->adsr.envelope = (AdsrEnvelope*)&seqPlayer->seqData[offset];
break;
case 0xD9:
command = (u8)parameters[0];
channel->adsr.releaseRate = command;
break;
case 0xD8:
command = (u8)parameters[0];
channel->vibratoExtentTarget = command * 8;
channel->vibratoExtentStart = 0;
channel->vibratoExtentChangeDelay = 0;
break;
case 0xD7:
command = (u8)parameters[0];
channel->vibratoRateChangeDelay = 0;
channel->vibratoRateTarget = command * 32;
channel->vibratoRateStart = command * 32;
break;
case 0xE2:
command = (u8)parameters[0];
channel->vibratoExtentStart = command * 8;
command = (u8)parameters[1];
channel->vibratoExtentTarget = command * 8;
command = (u8)parameters[2];
channel->vibratoExtentChangeDelay = command * 16;
break;
case 0xE1:
command = (u8)parameters[0];
channel->vibratoRateStart = command * 32;
command = (u8)parameters[1];
channel->vibratoRateTarget = command * 32;
command = (u8)parameters[2];
channel->vibratoRateChangeDelay = command * 16;
break;
case 0xE3:
command = (u8)parameters[0];
channel->vibratoDelay = command * 16;
break;
case 0xD4:
command = (u8)parameters[0];
channel->reverb = command;
break;
case 0xC6:
result = (u8)parameters[0];
command = (u8)parameters[0];
if (seqPlayer->defaultFont != 0xFF) {
offset = ((u16*)gAudioContext.sequenceFontTable)[seqPlayer->seqId];
lowBits = gAudioContext.sequenceFontTable[offset];
command = gAudioContext.sequenceFontTable[offset + lowBits - result];
}
if (AudioHeap_SearchCaches(FONT_TABLE, CACHE_EITHER, command)) {
channel->fontId = command;
}
break;
case 0xC7:
command = (u8)parameters[0];
offset = (u16)parameters[1];
test = &seqPlayer->seqData[offset];
test[0] = (u8)scriptState->value + command;
break;
case 0xC8:
case 0xCC:
case 0xC9:
signedParam = (s8)parameters[0];
if (command == 0xC8) {
scriptState->value -= signedParam;
} else if (command == 0xCC) {
scriptState->value = signedParam;
} else {
scriptState->value &= signedParam;
}
break;
case 0xCD:
command = (u8)parameters[0];
AudioSeq_SequenceChannelDisable(seqPlayer->channels[command]);
break;
case 0xCA:
command = (u8)parameters[0];
channel->muteBehavior = command;
channel->changes.s.volume = true;
break;
case 0xCB:
offset = (u16)parameters[0];
scriptState->value = *(seqPlayer->seqData + (uintptr_t)(offset + scriptState->value));
break;
case 0xCE:
offset = (u16)parameters[0];
channel->unk_22 = offset;
break;
case 0xCF:
offset = (u16)parameters[0];
test = &seqPlayer->seqData[offset];
test[0] = (channel->unk_22 >> 8) & 0xFF;
test[1] = channel->unk_22 & 0xFF;
break;
case 0xD0:
command = (u8)parameters[0];
if (command & 0x80) {
channel->stereoHeadsetEffects = true;
} else {
channel->stereoHeadsetEffects = false;
}
channel->stereo.asByte = command & 0x7F;
break;
case 0xD1:
command = (u8)parameters[0];
channel->noteAllocPolicy = command;
break;
case 0xD2:
command = (u8)parameters[0];
channel->adsr.sustain = command;
break;
case 0xE5:
command = (u8)parameters[0];
channel->reverbIndex = command;
break;
case 0xE4:
if (scriptState->value != -1) {
data = (*channel->dynTable)[scriptState->value];
//! @bug: Missing a stack depth check here
scriptState->stack[scriptState->depth++] = scriptState->pc;
offset = (u16)((data[0] << 8) + data[1]);
scriptState->pc = seqPlayer->seqData + offset;
}
break;
case 0xE6:
command = (u8)parameters[0];
channel->bookOffset = command;
break;
case 0xE7:
offset = (u16)parameters[0];
data = &seqPlayer->seqData[offset];
channel->muteBehavior = data[0];
data += 3;
channel->noteAllocPolicy = data[-2];
AudioSeq_SetChannelPriorities(channel, data[-1]);
channel->transposition = (s8)data[0];
data += 4;
channel->newPan = data[-3];
channel->panChannelWeight = data[-2];
channel->reverb = data[-1];
channel->reverbIndex = data[0];
//! @bug: Not marking reverb state as changed
channel->changes.s.pan = true;
break;
case 0xE8:
channel->muteBehavior = parameters[0];
channel->noteAllocPolicy = parameters[1];
command = (u8)parameters[2];
AudioSeq_SetChannelPriorities(channel, command);
channel->transposition = (s8)AudioSeq_ScriptReadU8(scriptState);
channel->newPan = AudioSeq_ScriptReadU8(scriptState);
channel->panChannelWeight = AudioSeq_ScriptReadU8(scriptState);
channel->reverb = AudioSeq_ScriptReadU8(scriptState);
channel->reverbIndex = AudioSeq_ScriptReadU8(scriptState);
//! @bug: Not marking reverb state as changed
channel->changes.s.pan = true;
break;
case 0xEC:
channel->vibratoExtentTarget = 0;
channel->vibratoExtentStart = 0;
channel->vibratoExtentChangeDelay = 0;
channel->vibratoRateTarget = 0;
channel->vibratoRateStart = 0;
channel->vibratoRateChangeDelay = 0;
channel->filter = NULL;
channel->unk_0C = 0;
channel->adsr.sustain = 0;
channel->velocityRandomVariance = 0;
channel->gateTimeRandomVariance = 0;
channel->unk_0F = 0;
channel->unk_20 = 0;
channel->bookOffset = 0;
channel->freqScale = 1.0f;
break;
case 0xE9:
AudioSeq_SetChannelPriorities(channel, (u8)parameters[0]);
break;
case 0xED:
command = (u8)parameters[0];
channel->unk_0C = command;
break;
case 0xB0:
offset = (u16)parameters[0];
data = seqPlayer->seqData + offset;
channel->filter = (s16*)data;
break;
case 0xB1:
channel->filter = NULL;
break;
case 0xB3:
command = parameters[0];
if (channel->filter != NULL) {
lowBits = (command >> 4) & 0xF;
command &= 0xF;
AudioHeap_LoadFilter(channel->filter, lowBits, command);
}
break;
case 0xB2:
offset = (u16)parameters[0];
// OTRTODO: Byteswap added for quick audio
channel->unk_22 = _byteswap_ushort(*(u16*)(seqPlayer->seqData + (uintptr_t)(offset + scriptState->value * 2)));
break;
case 0xB4:
channel->dynTable = (void*)&seqPlayer->seqData[channel->unk_22];
break;
case 0xB5:
// OTRTODO: Byteswap added for quick audio
channel->unk_22 = _byteswap_ushort(((u16*)(channel->dynTable))[scriptState->value]);
break;
case 0xB6:
scriptState->value = (*channel->dynTable)[0][scriptState->value];
break;
case 0xB7:
channel->unk_22 = (parameters[0] == 0) ? gAudioContext.audioRandom & 0xFFFF
: gAudioContext.audioRandom % parameters[0];
break;
case 0xB8:
scriptState->value = (parameters[0] == 0) ? gAudioContext.audioRandom & 0xFFFF
: gAudioContext.audioRandom % parameters[0];
break;
case 0xBD: {
result = Audio_NextRandom();
channel->unk_22 = (parameters[0] == 0) ? (u32)result & 0xFFFF : (u32)result % parameters[0];
channel->unk_22 += parameters[1];
pad2 = (channel->unk_22 / 0x100) + 0x80; // i is wrong here
param = channel->unk_22 % 0x100;
channel->unk_22 = (pad2 << 8) | param;
} break;
case 0xB9:
channel->velocityRandomVariance = parameters[0];
break;
case 0xBA:
channel->gateTimeRandomVariance = parameters[0];
break;
case 0xBB:
channel->unk_0F = parameters[0];
channel->unk_20 = parameters[1];
break;
case 0xBC:
channel->unk_22 += parameters[0];
break;
}
}
} else if (command >= 0x70) {
lowBits = command & 0x7;
if ((command & 0xF8) != 0x70 && lowBits >= 4) {
lowBits = 0;
}
switch (command & 0xF8) {
case 0x80:
if (channel->layers[lowBits] != NULL) {
scriptState->value = channel->layers[lowBits]->finished;
} else {
scriptState->value = -1;
}
break;
case 0x88:
offset = AudioSeq_ScriptReadS16(scriptState);
if (!AudioSeq_SeqChannelSetLayer(channel, lowBits)) {
channel->layers[lowBits]->scriptState.pc = &seqPlayer->seqData[offset];
}
break;
case 0x90:
AudioSeq_SeqLayerFree(channel, lowBits);
break;
case 0x98:
if (scriptState->value == -1 || AudioSeq_SeqChannelSetLayer(channel, lowBits) == -1) {
break;
}
data = (*channel->dynTable)[scriptState->value];
offset = (data[0] << 8) + data[1];
channel->layers[lowBits]->scriptState.pc = &seqPlayer->seqData[offset];
break;
case 0x70:
channel->soundScriptIO[lowBits] = scriptState->value;
break;
case 0x78:
pad1 = AudioSeq_ScriptReadS16(scriptState);
if (!AudioSeq_SeqChannelSetLayer(channel, lowBits)) {
channel->layers[lowBits]->scriptState.pc = &scriptState->pc[pad1];
}
break;
}
} else {
lowBits = command & 0xF;
switch (command & 0xF0) {
case 0x00: {
channel->delay = lowBits;
goto exit_loop;
}
case 0x10:
if (lowBits < 8) {
channel->soundScriptIO[lowBits] = -1;
if (AudioLoad_SlowLoadSample(channel->fontId, scriptState->value,
&channel->soundScriptIO[lowBits]) == -1) {
break;
}
} else {
lowBits -= 8;
channel->soundScriptIO[lowBits] = -1;
if (AudioLoad_SlowLoadSample(channel->fontId, channel->unk_22 + 0x100,
&channel->soundScriptIO[lowBits]) == -1) {
break;
}
}
break;
case 0x60:
scriptState->value = channel->soundScriptIO[lowBits];
if (lowBits < 2) {
channel->soundScriptIO[lowBits] = -1;
}
break;
case 0x50:
scriptState->value -= channel->soundScriptIO[lowBits];
break;
case 0x20:
offset = AudioSeq_ScriptReadS16(scriptState);
AudioSeq_SequenceChannelEnable(seqPlayer, lowBits, &seqPlayer->seqData[offset]);
break;
case 0x30:
command = AudioSeq_ScriptReadU8(scriptState);
seqPlayer->channels[lowBits]->soundScriptIO[command] = scriptState->value;
break;
case 0x40:
command = AudioSeq_ScriptReadU8(scriptState);
scriptState->value = seqPlayer->channels[lowBits]->soundScriptIO[command];
break;
}
}
}
exit_loop:
for (i = 0; i < ARRAY_COUNT(channel->layers); i++) {
if (channel->layers[i] != NULL) {
AudioSeq_SeqLayerProcessScript(channel->layers[i]);
}
}
}
void AudioSeq_SequencePlayerProcessSequence(SequencePlayer* seqPlayer) {
u8 command;
u8 commandLow;
SeqScriptState* seqScript = &seqPlayer->scriptState;
s16 tempS;
u16 temp;
s32 i;
s32 value;
u8* data;
u8* data2;
u8* data3;
s32 pad3;
s32 dummy;
if (!seqPlayer->enabled) {
return;
}
if (!AudioLoad_IsSeqLoadComplete(seqPlayer->seqId) || !AudioLoad_IsFontLoadComplete(seqPlayer->defaultFont)) {
AudioSeq_SequencePlayerDisable(seqPlayer);
return;
}
AudioLoad_SetSeqLoadStatus(seqPlayer->seqId, 2);
AudioLoad_SetFontLoadStatus(seqPlayer->defaultFont, 2);
if (seqPlayer->muted && (seqPlayer->muteBehavior & 0x80)) {
return;
}
seqPlayer->scriptCounter++;
seqPlayer->tempoAcc += seqPlayer->tempo;
seqPlayer->tempoAcc += (s16)seqPlayer->unk_0C;
if (seqPlayer->tempoAcc < gAudioContext.tempoInternalToExternal) {
return;
}
seqPlayer->tempoAcc -= (u16)gAudioContext.tempoInternalToExternal;
if (seqPlayer->stopScript == true) {
return;
}
if (seqPlayer->delay > 1) {
seqPlayer->delay--;
} else {
seqPlayer->recalculateVolume = true;
while (true) {
command = AudioSeq_ScriptReadU8(seqScript);
// 0xF2 and above are "flow control" commands, including termination.
if (command >= 0xF2) {
s32 scriptHandled = AudioSeq_HandleScriptFlowControl(
seqPlayer, seqScript, command,
AudioSeq_GetScriptControlFlowArgument(&seqPlayer->scriptState, command));
if (scriptHandled != 0) {
if (scriptHandled == -1) {
AudioSeq_SequencePlayerDisable(seqPlayer);
} else {
seqPlayer->delay = (u16)scriptHandled;
}
break;
}
} else if (command >= 0xC0) {
switch (command) {
case 0xF1:
Audio_NotePoolClear(&seqPlayer->notePool);
command = AudioSeq_ScriptReadU8(seqScript);
Audio_NotePoolFill(&seqPlayer->notePool, command);
// Fake-match: the asm has two breaks in a row here,
// which the compiler normally optimizes out.
dummy = -1;
if (dummy < 0) {
dummy = 0;
}
if (dummy > 1) {
dummy = 1;
}
if (dummy) {}
break;
case 0xF0:
Audio_NotePoolClear(&seqPlayer->notePool);
break;
case 0xDF:
seqPlayer->transposition = 0;
// Note: intentional fallthrough, also executes below command
case 0xDE:
seqPlayer->transposition += (s8)AudioSeq_ScriptReadU8(seqScript);
break;
case 0xDD:
seqPlayer->tempo = AudioSeq_ScriptReadU8(seqScript) * 48;
if (seqPlayer->tempo > gAudioContext.tempoInternalToExternal) {
seqPlayer->tempo = (u16)gAudioContext.tempoInternalToExternal;
}
if ((s16)seqPlayer->tempo <= 0) {
seqPlayer->tempo = 1;
}
break;
case 0xDC:
seqPlayer->unk_0C = (s8)AudioSeq_ScriptReadU8(seqScript) * 48;
break;
case 0xDA:
command = AudioSeq_ScriptReadU8(seqScript);
temp = AudioSeq_ScriptReadS16(seqScript);
switch (command) {
case 0:
case 1:
if (seqPlayer->state != 2) {
seqPlayer->fadeTimerUnkEu = temp;
seqPlayer->state = command;
}
break;
case 2:
seqPlayer->fadeTimer = temp;
seqPlayer->state = command;
seqPlayer->fadeVelocity = (0 - seqPlayer->fadeVolume) / (s32)seqPlayer->fadeTimer;
break;
}
break;
case 0xDB:
value = AudioSeq_ScriptReadU8(seqScript);
switch (seqPlayer->state) {
case 1:
seqPlayer->state = 0;
seqPlayer->fadeVolume = 0.0f;
// NOTE: Intentional fallthrough
case 0:
seqPlayer->fadeTimer = seqPlayer->fadeTimerUnkEu;
if (seqPlayer->fadeTimerUnkEu != 0) {
seqPlayer->fadeVelocity =
((value / 127.0f) - seqPlayer->fadeVolume) / (s32)(seqPlayer->fadeTimer);
} else {
seqPlayer->fadeVolume = (s32)value / 127.0f;
}
break;
case 2:
break;
}
break;
case 0xD9:
seqPlayer->fadeVolumeScale = (s8)AudioSeq_ScriptReadU8(seqScript) / 127.0f;
break;
case 0xD7:
temp = AudioSeq_ScriptReadS16(seqScript);
AudioSeq_SequencePlayerSetupChannels(seqPlayer, temp);
break;
case 0xD6:
AudioSeq_ScriptReadS16(seqScript);
break;
case 0xD5:
seqPlayer->muteVolumeScale = (s8)AudioSeq_ScriptReadU8(seqScript) / 127.0f;
break;
case 0xD4:
seqPlayer->muted = true;
break;
case 0xD3:
seqPlayer->muteBehavior = AudioSeq_ScriptReadU8(seqScript);
break;
case 0xD1:
case 0xD2:
temp = AudioSeq_ScriptReadS16(seqScript);
data3 = &seqPlayer->seqData[temp];
if (command == 0xD2) {
seqPlayer->shortNoteVelocityTable = data3;
} else {
seqPlayer->shortNoteGateTimeTable = data3;
}
break;
case 0xD0:
seqPlayer->noteAllocPolicy = AudioSeq_ScriptReadU8(seqScript);
break;
case 0xCE:
command = AudioSeq_ScriptReadU8(seqScript);
if (command == 0) {
seqScript->value = (gAudioContext.audioRandom >> 2) & 0xFF;
} else {
seqScript->value = (gAudioContext.audioRandom >> 2) % command;
}
break;
case 0xCD: {
temp = AudioSeq_ScriptReadS16(seqScript);
if ((seqScript->value != -1) && (seqScript->depth != 3)) {
data = seqPlayer->seqData + (u32)(temp + (seqScript->value << 1));
seqScript->stack[seqScript->depth] = seqScript->pc;
seqScript->depth++;
temp = (data[0] << 8) + data[1];
seqScript->pc = &seqPlayer->seqData[temp];
}
break;
}
case 0xCC:
seqScript->value = AudioSeq_ScriptReadU8(seqScript);
break;
case 0xC9:
seqScript->value &= AudioSeq_ScriptReadU8(seqScript);
break;
case 0xC8:
seqScript->value -= AudioSeq_ScriptReadU8(seqScript);
break;
case 0xC7:
command = AudioSeq_ScriptReadU8(seqScript);
temp = AudioSeq_ScriptReadS16(seqScript);
data2 = &seqPlayer->seqData[temp];
*data2 = (u8)seqScript->value + command;
break;
case 0xC6:
seqPlayer->stopScript = true;
return;
case 0xC5:
seqPlayer->scriptCounter = (u16)AudioSeq_ScriptReadS16(seqScript);
break;
case 0xEF:
AudioSeq_ScriptReadS16(seqScript);
AudioSeq_ScriptReadU8(seqScript);
break;
case 0xC4:
command = AudioSeq_ScriptReadU8(seqScript);
if (command == 0xFF) {
command = seqPlayer->playerIdx;
}
commandLow = AudioSeq_ScriptReadU8(seqScript);
AudioLoad_SyncInitSeqPlayer(command, commandLow, 0);
if (command == (u8)seqPlayer->playerIdx) {
return;
}
break;
}
} else {
commandLow = command & 0x0F;
switch (command & 0xF0) {
case 0x00:
seqScript->value = seqPlayer->channels[commandLow]->enabled ^ 1;
break;
case 0x50:
seqScript->value -= seqPlayer->soundScriptIO[commandLow];
break;
case 0x70:
seqPlayer->soundScriptIO[commandLow] = seqScript->value;
break;
case 0x80:
seqScript->value = seqPlayer->soundScriptIO[commandLow];
if (commandLow < 2) {
seqPlayer->soundScriptIO[commandLow] = -1;
}
break;
case 0x40:
AudioSeq_SequenceChannelDisable(seqPlayer->channels[commandLow]);
break;
case 0x90:
temp = AudioSeq_ScriptReadS16(seqScript);
AudioSeq_SequenceChannelEnable(seqPlayer, commandLow, (void*)&seqPlayer->seqData[temp]);
break;
case 0xA0:
tempS = AudioSeq_ScriptReadS16(seqScript);
AudioSeq_SequenceChannelEnable(seqPlayer, commandLow, (void*)&seqScript->pc[tempS]);
break;
case 0xB0:
command = AudioSeq_ScriptReadU8(seqScript);
temp = AudioSeq_ScriptReadS16(seqScript);
data2 = &seqPlayer->seqData[temp];
AudioLoad_SlowLoadSeq(command, data2, &seqPlayer->soundScriptIO[commandLow]);
break;
case 0x60: {
command = AudioSeq_ScriptReadU8(seqScript);
value = command;
temp = AudioSeq_ScriptReadU8(seqScript);
AudioLoad_ScriptLoad(value, temp, &seqPlayer->soundScriptIO[commandLow]);
break;
}
}
}
}
}
for (i = 0; i < ARRAY_COUNT(seqPlayer->channels); i++) {
if (seqPlayer->channels[i]->enabled) {
AudioSeq_SequenceChannelProcessScript(seqPlayer->channels[i]);
}
}
}
void AudioSeq_ProcessSequences(s32 arg0) {
SequencePlayer* seqPlayer;
u32 i;
gAudioContext.noteSubEuOffset =
(gAudioContext.audioBufferParameters.updatesPerFrame - arg0 - 1) * gAudioContext.numNotes;
for (i = 0; i < (u32)gAudioContext.audioBufferParameters.numSequencePlayers; i++) {
seqPlayer = &gAudioContext.seqPlayers[i];
if (seqPlayer->enabled == 1) {
AudioSeq_SequencePlayerProcessSequence(seqPlayer);
Audio_SequencePlayerProcessSound(seqPlayer);
}
}
Audio_ProcessNotes();
}
void AudioSeq_SkipForwardSequence(SequencePlayer* seqPlayer) {
while (seqPlayer->skipTicks > 0) {
AudioSeq_SequencePlayerProcessSequence(seqPlayer);
Audio_SequencePlayerProcessSound(seqPlayer);
seqPlayer->skipTicks--;
}
}
void AudioSeq_ResetSequencePlayer(SequencePlayer* seqPlayer) {
s32 i;
AudioSeq_SequencePlayerDisable(seqPlayer);
seqPlayer->stopScript = false;
seqPlayer->delay = 0;
seqPlayer->state = 1;
seqPlayer->fadeTimer = 0;
seqPlayer->fadeTimerUnkEu = 0;
seqPlayer->tempoAcc = 0;
seqPlayer->tempo = 120 * TATUMS_PER_BEAT; // 120 BPM
seqPlayer->unk_0C = 0;
seqPlayer->transposition = 0;
seqPlayer->noteAllocPolicy = 0;
seqPlayer->shortNoteVelocityTable = gDefaultShortNoteVelocityTable;
seqPlayer->shortNoteGateTimeTable = gDefaultShortNoteGateTimeTable;
seqPlayer->scriptCounter = 0;
seqPlayer->fadeVolume = 1.0f;
seqPlayer->fadeVelocity = 0.0f;
seqPlayer->volume = 0.0f;
seqPlayer->muteVolumeScale = 0.5f;
for (i = 0; i < 0x10; i++) {
AudioSeq_InitSequenceChannel(seqPlayer->channels[i]);
}
}
void AudioSeq_InitSequencePlayerChannels(s32 playerIdx) {
SequenceChannel* channel;
SequencePlayer* seqPlayer = &gAudioContext.seqPlayers[playerIdx];
s32 i, j;
for (i = 0; i < 0x10; i++) {
seqPlayer->channels[i] = AudioHeap_AllocZeroed(&gAudioContext.notesAndBuffersPool, sizeof(SequenceChannel));
if (seqPlayer->channels[i] == NULL) {
seqPlayer->channels[i] = &gAudioContext.sequenceChannelNone;
} else {
channel = seqPlayer->channels[i];
channel->seqPlayer = seqPlayer;
channel->enabled = false;
for (j = 0; j < 4; j++) {
channel->layers[j] = NULL;
}
}
AudioSeq_InitSequenceChannel(seqPlayer->channels[i]);
}
}
void AudioSeq_InitSequencePlayer(SequencePlayer* seqPlayer) {
s32 i, j;
for (i = 0; i < 0x10; i++) {
seqPlayer->channels[i] = &gAudioContext.sequenceChannelNone;
}
seqPlayer->enabled = false;
seqPlayer->muted = false;
seqPlayer->fontDmaInProgress = false;
seqPlayer->seqDmaInProgress = false;
seqPlayer->unk_0b1 = false;
for (j = 0; j < 8; j++) {
seqPlayer->soundScriptIO[j] = -1;
}
seqPlayer->muteBehavior = 0x40 | 0x20;
seqPlayer->fadeVolumeScale = 1.0f;
seqPlayer->unk_34 = 1.0f;
Audio_InitNoteLists(&seqPlayer->notePool);
AudioSeq_ResetSequencePlayer(seqPlayer);
}
void AudioSeq_InitSequencePlayers(void) {
s32 i;
AudioSeq_InitLayerFreelist();
for (i = 0; i < 64; i++) {
gAudioContext.sequenceLayers[i].channel = NULL;
gAudioContext.sequenceLayers[i].enabled = false;
}
for (i = 0; i < 4; i++) {
AudioSeq_InitSequencePlayer(&gAudioContext.seqPlayers[i]);
}
}
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