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Pulled in the audio code from @ckosmic's fork, which is from the decomp project.

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MeltyPlayer
2022-10-21 00:15:13 -05:00
parent 2e2b6de15d
commit 43cc7c9700
26 changed files with 18641 additions and 0 deletions
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src/decomp/audio/port_eu.c
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#include <ultra64.h>
#include "internal.h"
#include "load.h"
#include "data.h"
#include "seqplayer.h"
#include "synthesis.h"
#ifdef VERSION_EU
#ifdef __sgi
#define stubbed_printf
#else
#define stubbed_printf(...)
#endif
#define SAMPLES_TO_OVERPRODUCE 0x10
#define EXTRA_BUFFERED_AI_SAMPLES_TARGET 0x40
#ifdef VERSION_JP
typedef u16 FadeT;
#else
typedef s32 FadeT;
#endif
extern volatile u8 gAudioResetStatus;
extern u8 gAudioResetPresetIdToLoad;
extern OSMesgQueue *OSMesgQueues[];
extern struct EuAudioCmd sAudioCmd[0x100];
void func_8031D690(s32 player, FadeT fadeInTime);
void seq_player_fade_to_zero_volume(s32 player, FadeT fadeOutTime);
void decrease_sample_dma_ttls(void);
s32 audio_shut_down_and_reset_step(void);
void func_802ad7ec(u32);
#ifdef TARGET_N64
struct SPTask *create_next_audio_frame_task(void) {
u32 samplesRemainingInAI;
s32 writtenCmds;
s32 index;
OSTask_t *task;
s32 flags;
s16 *currAiBuffer;
s32 oldDmaCount;
OSMesg sp30;
OSMesg sp2C;
gAudioFrameCount++;
if (gAudioFrameCount % gAudioBufferParameters.presetUnk4 != 0) {
stubbed_printf("DAC:Lost 1 Frame.\n");
return NULL;
}
osSendMesg(OSMesgQueues[0], (OSMesg) gAudioFrameCount, 0);
gAudioTaskIndex ^= 1;
gCurrAiBufferIndex++;
gCurrAiBufferIndex %= NUMAIBUFFERS;
index = (gCurrAiBufferIndex - 2 + NUMAIBUFFERS) % NUMAIBUFFERS;
samplesRemainingInAI = osAiGetLength() / 4;
if (gAiBufferLengths[index] != 0) {
osAiSetNextBuffer(gAiBuffers[index], gAiBufferLengths[index] * 4);
}
oldDmaCount = gCurrAudioFrameDmaCount;
if (oldDmaCount > AUDIO_FRAME_DMA_QUEUE_SIZE) {
stubbed_printf("DMA: Request queue over.( %d )\n", oldDmaCount);
}
gCurrAudioFrameDmaCount = 0;
decrease_sample_dma_ttls();
if (osRecvMesg(OSMesgQueues[2], &sp30, 0) != -1) {
gAudioResetPresetIdToLoad = (u8) (s32) sp30;
gAudioResetStatus = 5;
}
if (gAudioResetStatus != 0) {
if (audio_shut_down_and_reset_step() == 0) {
if (gAudioResetStatus == 0) {
osSendMesg(OSMesgQueues[3], (OSMesg) (s32) gAudioResetPresetIdToLoad, OS_MESG_NOBLOCK);
}
return NULL;
}
}
gAudioTask = &gAudioTasks[gAudioTaskIndex];
gAudioCmd = gAudioCmdBuffers[gAudioTaskIndex];
index = gCurrAiBufferIndex;
currAiBuffer = gAiBuffers[index];
gAiBufferLengths[index] = ((gAudioBufferParameters.samplesPerFrameTarget - samplesRemainingInAI +
EXTRA_BUFFERED_AI_SAMPLES_TARGET) & ~0xf) + SAMPLES_TO_OVERPRODUCE;
if (gAiBufferLengths[index] < gAudioBufferParameters.minAiBufferLength) {
gAiBufferLengths[index] = gAudioBufferParameters.minAiBufferLength;
}
if (gAiBufferLengths[index] > gAudioBufferParameters.maxAiBufferLength) {
gAiBufferLengths[index] = gAudioBufferParameters.maxAiBufferLength;
}
if (osRecvMesg(OSMesgQueues[1], &sp2C, OS_MESG_NOBLOCK) != -1) {
func_802ad7ec((u32) sp2C);
}
flags = 0;
gAudioCmd = synthesis_execute(gAudioCmd, &writtenCmds, currAiBuffer, gAiBufferLengths[index]);
gAudioRandom = ((gAudioRandom + gAudioFrameCount) * gAudioFrameCount);
gAudioRandom = gAudioRandom + writtenCmds / 8;
index = gAudioTaskIndex;
gAudioTask->msgqueue = NULL;
gAudioTask->msg = NULL;
task = &gAudioTask->task.t;
task->type = M_AUDTASK;
task->flags = flags;
task->ucode_boot = rspF3DBootStart;
task->ucode_boot_size = (u8 *) rspF3DBootEnd - (u8 *) rspF3DBootStart;
task->ucode = rspAspMainStart;
task->ucode_data = rspAspMainDataStart;
task->ucode_size = 0x800; // (this size is ignored)
task->ucode_data_size = (rspAspMainDataEnd - rspAspMainDataStart) * sizeof(u64);
task->dram_stack = NULL;
task->dram_stack_size = 0;
task->output_buff = NULL;
task->output_buff_size = NULL;
task->data_ptr = gAudioCmdBuffers[index];
task->data_size = writtenCmds * sizeof(u64);
task->yield_data_ptr = NULL;
task->yield_data_size = 0;
return gAudioTask;
}
#else
struct SPTask *create_next_audio_frame_task(void) {
return NULL;
}
void create_next_audio_buffer(s16 *samples, u32 num_samples) {
s32 writtenCmds;
OSMesg msg;
gAudioFrameCount++;
decrease_sample_dma_ttls();
if (osRecvMesg(OSMesgQueues[2], &msg, 0) != -1) {
gAudioResetPresetIdToLoad = (u8) (intptr_t) msg;
gAudioResetStatus = 5;
}
if (gAudioResetStatus != 0) {
audio_reset_session();
gAudioResetStatus = 0;
}
if (osRecvMesg(OSMesgQueues[1], &msg, OS_MESG_NOBLOCK) != -1) {
func_802ad7ec((u32) msg);
}
synthesis_execute(gAudioCmdBuffers[0], &writtenCmds, samples, num_samples);
gAudioRandom = ((gAudioRandom + gAudioFrameCount) * gAudioFrameCount);
gAudioRandom = gAudioRandom + writtenCmds / 8;
}
#endif
void eu_process_audio_cmd(struct EuAudioCmd *cmd) {
s32 i;
switch (cmd->u.s.op) {
case 0x81:
preload_sequence(cmd->u.s.arg2, 3);
break;
case 0x82:
case 0x88:
load_sequence(cmd->u.s.arg1, cmd->u.s.arg2, cmd->u.s.arg3);
func_8031D690(cmd->u.s.arg1, cmd->u2.as_s32);
break;
case 0x83:
if (gSequencePlayers[cmd->u.s.arg1].enabled != FALSE) {
if (cmd->u2.as_s32 == 0) {
sequence_player_disable(&gSequencePlayers[cmd->u.s.arg1]);
}
else {
seq_player_fade_to_zero_volume(cmd->u.s.arg1, cmd->u2.as_s32);
}
}
break;
case 0xf0:
gSoundMode = cmd->u2.as_s32;
break;
case 0xf1:
for (i = 0; i < 4; i++) {
gSequencePlayers[i].muted = TRUE;
gSequencePlayers[i].recalculateVolume = TRUE;
}
break;
case 0xf2:
for (i = 0; i < 4; i++) {
gSequencePlayers[i].muted = FALSE;
gSequencePlayers[i].recalculateVolume = TRUE;
}
break;
}
}
const char undefportcmd[] = "Undefined Port Command %d\n";
extern OSMesgQueue *OSMesgQueues[];
extern u8 D_EU_80302010;
extern u8 D_EU_80302014;
extern OSMesg OSMesg0;
extern OSMesg OSMesg1;
extern OSMesg OSMesg2;
extern OSMesg OSMesg3;
void seq_player_fade_to_zero_volume(s32 player, FadeT fadeOutTime) {
if (fadeOutTime == 0) {
fadeOutTime = 1;
}
gSequencePlayers[player].fadeVelocity = -(gSequencePlayers[player].fadeVolume / fadeOutTime);
gSequencePlayers[player].state = 2;
gSequencePlayers[player].fadeRemainingFrames = fadeOutTime;
}
void func_8031D690(s32 player, FadeT fadeInTime) {
if (fadeInTime != 0) {
gSequencePlayers[player].state = 1;
gSequencePlayers[player].fadeTimerUnkEu = fadeInTime;
gSequencePlayers[player].fadeRemainingFrames = fadeInTime;
gSequencePlayers[player].fadeVolume = 0.0f;
gSequencePlayers[player].fadeVelocity = 0.0f;
}
}
void port_eu_init_queues(void) {
D_EU_80302010 = 0;
D_EU_80302014 = 0;
osCreateMesgQueue(OSMesgQueues[0], &OSMesg0, 1);
osCreateMesgQueue(OSMesgQueues[1], &OSMesg1, 4);
osCreateMesgQueue(OSMesgQueues[2], &OSMesg2, 1);
osCreateMesgQueue(OSMesgQueues[3], &OSMesg3, 1);
}
void func_802ad6f0(s32 arg0, s32 *arg1) {
struct EuAudioCmd *cmd = &sAudioCmd[D_EU_80302010 & 0xff];
cmd->u.first = arg0;
cmd->u2.as_u32 = *arg1;
D_EU_80302010++;
}
void func_802ad728(u32 arg0, f32 arg1) {
func_802ad6f0(arg0, (s32*) &arg1);
}
void func_802ad74c(u32 arg0, u32 arg1) {
func_802ad6f0(arg0, (s32*) &arg1);
}
void func_802ad770(u32 arg0, s8 arg1) {
s32 sp1C = arg1 << 24;
func_802ad6f0(arg0, &sp1C);
}
void func_802ad7a0(void) {
osSendMesg(OSMesgQueues[1],
(OSMesg)(u32)((D_EU_80302014 & 0xff) << 8 | (D_EU_80302010 & 0xff)),
OS_MESG_NOBLOCK);
D_EU_80302014 = D_EU_80302010;
}
void func_802ad7ec(u32 arg0) {
struct EuAudioCmd *cmd;
struct SequencePlayer *seqPlayer;
struct SequenceChannel *chan;
u8 end = arg0 & 0xff;
u8 i = (arg0 >> 8) & 0xff;
for (;;) {
if (i == end) break;
cmd = &sAudioCmd[i++ & 0xff];
if (cmd->u.s.arg1 < SEQUENCE_PLAYERS) {
seqPlayer = &gSequencePlayers[cmd->u.s.arg1];
if ((cmd->u.s.op & 0x80) != 0) {
eu_process_audio_cmd(cmd);
}
else if ((cmd->u.s.op & 0x40) != 0) {
switch (cmd->u.s.op) {
case 0x41:
seqPlayer->fadeVolumeScale = cmd->u2.as_f32;
seqPlayer->recalculateVolume = TRUE;
break;
case 0x47:
seqPlayer->tempo = cmd->u2.as_s32 * TATUMS_PER_BEAT;
break;
case 0x48:
seqPlayer->transposition = cmd->u2.as_s8;
break;
case 0x46:
seqPlayer->seqVariationEu[cmd->u.s.arg3] = cmd->u2.as_s8;
break;
}
}
else if (seqPlayer->enabled != FALSE && cmd->u.s.arg2 < 0x10) {
chan = seqPlayer->channels[cmd->u.s.arg2];
if (IS_SEQUENCE_CHANNEL_VALID(chan))
{
switch (cmd->u.s.op) {
case 1:
chan->volumeScale = cmd->u2.as_f32;
chan->changes.as_bitfields.volume = TRUE;
break;
case 2:
chan->volume = cmd->u2.as_f32;
chan->changes.as_bitfields.volume = TRUE;
break;
case 3:
chan->newPan = cmd->u2.as_s8;
chan->changes.as_bitfields.pan = TRUE;
break;
case 4:
chan->freqScale = cmd->u2.as_f32;
chan->changes.as_bitfields.freqScale = TRUE;
break;
case 5:
chan->reverbVol = cmd->u2.as_s8;
break;
case 6:
if (cmd->u.s.arg3 < 8) {
chan->soundScriptIO[cmd->u.s.arg3] = cmd->u2.as_s8;
}
break;
case 8:
chan->stopSomething2 = cmd->u2.as_s8;
}
}
}
}
cmd->u.s.op = 0;
}
}
void port_eu_init(void) {
port_eu_init_queues();
}
#endif