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#include "JSystem/JSystem.h" // IWYU pragma: keep
#include "JSystem/JAudio2/JASOscillator.h"
JASOscillator::JASOscillator() {
mData = NULL;
mCurPoint = 0;
mDirectRelease = 0;
mEnvelopeMode = 0;
_1C = 0;
_04 = _08 = _10 = _0C = 0.0f;
}
void JASOscillator::initStart(JASOscillator::Data const* data) {
mData = data;
_04 = 0.0f;
_08 = 0.0f;
_0C = 0.0f;
mCurPoint = 0;
mDirectRelease = 0;
if (!data) {
_1C = 0;
return;
}
if (mData->mTable == NULL) {
_1C = 2;
_08 = 1.0f;
return;
}
_10 = mData->mTable[0].mValue / 32768.0f;
mEnvelopeMode = mData->mTable[0].mEnvelopeMode;
_1C = 1;
}
void JASOscillator::incCounter(f32 param_0) {
const short* v1;
switch (_1C) {
case 0:
case 2:
return;
case 1:
break;
}
_04 += param_0 * mData->mRate;
update();
}
f32 JASOscillator::getValue() const {
JUT_ASSERT(120, mData);
return _08 * mData->mScale + mData->mVertex;
}
void JASOscillator::release() {
if (mData->rel_table == NULL && mDirectRelease == 0) {
stop();
return;
}
if (mDirectRelease != 0) {
_04 = 0.0f;
_0C = _08;
_10 = 0.0f;
mCurPoint = 0;
mEnvelopeMode = (mDirectRelease >> 14) & 3;
_1C = 4;
update();
return;
}
if (mData->mTable != mData->rel_table) {
JUT_ASSERT(157, mData->rel_table != NULL);
_04 = 0.0f;
_0C = _08;
_10 = mData->rel_table[0].mValue / 32768.0f;
mCurPoint = 0;
mEnvelopeMode = mData->rel_table[0].mEnvelopeMode;
}
_1C = 3;
update();
}
void JASOscillator::update() {
if (_1C == 4) {
s32 x = mDirectRelease & 0x3FFF;
if (_04 < x) {
updateCurrentValue(x);
} else {
_08 = _10;
_1C = 0;
}
return;
}
if (_1C == 2) return;
const Point* psVar1 = _1C == 1 ? mData->mTable : mData->rel_table;
if (psVar1 == NULL) {
_1C = 2;
return;
}
while (_04 >= psVar1[mCurPoint].mTime) {
_04 -= psVar1[mCurPoint].mTime;
_08 = _10;
mCurPoint++;
_0C = _08;
const Point* ps = &psVar1[mCurPoint];
s16 mode = ps->mEnvelopeMode;
switch(mode) {
case ENVELOPE_STOP:
_1C = 0;
return;
case ENVELOPE_HOLD:
_1C = 2;
return;
case ENVELOPE_LOOP:
mCurPoint = ps->mValue;
break;
default:
mEnvelopeMode = mode;
_10 = ps->mValue / 32768.0f;
break;
}
}
updateCurrentValue(psVar1[mCurPoint].mTime);
}
f32 const JASOscillator::sCurveTableLinear[17] = {
1.0, 0.9375, 0.875, 0.8125, 0.75, 0.6875, 0.625, 0.5625, 0.5,
0.4375, 0.375, 0.3125, 0.25, 0.1875, 0.125, 0.0625, 0.0,
};
f32 const JASOscillator::sCurveTableSampleCell[17] = {
1.0, 0.9704890251159668, 0.7812740206718445, 0.5462809801101685, 0.39979198575019836,
0.28931498527526855, 0.21210399270057678, 0.15747599303722382, 0.1126129999756813, 0.08178959786891937,
0.057985201478004456, 0.04364150017499924, 0.03082370012998581, 0.023712899535894394, 0.015259300358593464,
0.00915555004030466, 0.0
};
f32 const JASOscillator::sCurveTableSqRoot[17] = {
1.0, 0.8789060115814209, 0.765625, 0.6601560115814209, 0.5625, 0.4726560115814209,
0.390625, 0.3164060115814209, 0.25, 0.1914059966802597, 0.140625, 0.09765619784593582,
0.0625, 0.03515620157122612, 0.015625, 0.00390625, 0.0
};
f32 const JASOscillator::sCurveTableSquare[17] = {
1.0, 0.9682459831237793, 0.9354140162467957, 0.9013879895210266, 0.8660249710083008,
0.8291559815406799, 0.790569007396698, 0.75, 0.7071070075035095, 0.66143798828125,
0.6123719811439514, 0.55901700258255, 0.5, 0.433012992143631, 0.35355299711227417, 0.25, 0.0,
};
static f32* table_list[4] = {
(f32*)JASOscillator::sCurveTableLinear,
(f32*)JASOscillator::sCurveTableSquare,
(f32*)JASOscillator::sCurveTableSqRoot,
(f32*)JASOscillator::sCurveTableSampleCell,
};
void JASOscillator::updateCurrentValue(f32 param_0) {
f32* table = table_list[mEnvelopeMode];
f32 fVar1 = 16.0f * (_04 / param_0);
u32 index = (u32) fVar1;
f32 fVar3 = (fVar1 - index);
f32 fVar4 = (1.0f - fVar3) * table[index] + fVar3 * table[index + 1];
_08 = _0C * fVar4 + _10 * (1.0f - fVar4);
}
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