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Clean-up PixTone.cpp some more

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This commit is contained in:
Clownacy 2019-11-21 19:50:20 +00:00
parent 4154b8c1bd
commit 16b9f1f0a4
1 changed files with 12 additions and 10 deletions
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22
src/PixTone.cpp
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@ -15,8 +15,10 @@ void MakeWaveTables(void)
// Sine wave
for (i = 0; i < 0x100; ++i)
{
gWaveModelTable[0][i] = (signed char)(sin(i * 6.283184 / 256.0) * 64.0);
a = gWaveModelTable[0][i];
int unknown;
gWaveModelTable[0][i] = (signed char)(sin((i * 6.283184) / 256.0) * 64.0);
unknown = gWaveModelTable[0][i]; // I have no idea what this line was meant to do
}
// Triangle wave
@ -29,23 +31,23 @@ void MakeWaveTables(void)
for (a = 0; i < 0xC0; ++i)
{
// Downwards
gWaveModelTable[1][i] = 0x40 - (a * 0x40) / 0x40;
gWaveModelTable[1][i] = 0x40 - ((a * 0x40) / 0x40);
++a;
}
for (a = 0; i < 0x100; ++i)
{
// Back up
gWaveModelTable[1][i] = (a * 0x40) / 0x40 - 0x40;
gWaveModelTable[1][i] = ((a * 0x40) / 0x40) - 0x40;
++a;
}
// Saw up wave
for (i = 0; i < 0x100; ++i)
gWaveModelTable[2][i] = i / 2 - 0x40;
gWaveModelTable[2][i] = (i / 2) - 0x40;
// Saw down wave
for (i = 0; i < 0x100; ++i)
gWaveModelTable[3][i] = 0x40 - i / 2;
gWaveModelTable[3][i] = 0x40 - (i / 2);
// Square wave
for (i = 0; i < 0x80; ++i)
@ -86,7 +88,7 @@ BOOL MakePixelWaveData(const PIXTONEPARAMETER *ptp, unsigned char *pData)
while (i < ptp->pointAx)
{
envelopeTable[i] = (signed char)dEnvelope;
dEnvelope = ((double)ptp->pointAy - ptp->initial) / ptp->pointAx + dEnvelope;
dEnvelope = (((double)ptp->pointAy - ptp->initial) / ptp->pointAx) + dEnvelope;
++i;
}
@ -94,7 +96,7 @@ BOOL MakePixelWaveData(const PIXTONEPARAMETER *ptp, unsigned char *pData)
while (i < ptp->pointBx)
{
envelopeTable[i] = (signed char)dEnvelope;
dEnvelope = ((double)ptp->pointBy - ptp->pointAy) / (double)(ptp->pointBx - ptp->pointAx) + dEnvelope;
dEnvelope = (((double)ptp->pointBy - ptp->pointAy) / (double)(ptp->pointBx - ptp->pointAx)) + dEnvelope;
++i;
}
@ -110,7 +112,7 @@ BOOL MakePixelWaveData(const PIXTONEPARAMETER *ptp, unsigned char *pData)
while (i < 0x100)
{
envelopeTable[i] = (signed char)dEnvelope;
dEnvelope = (double)dEnvelope - ptp->pointCy / (double)(256 - ptp->pointCx);
dEnvelope = dEnvelope - (ptp->pointCy / (double)(0x100 - ptp->pointCx));
++i;
}
@ -142,7 +144,7 @@ BOOL MakePixelWaveData(const PIXTONEPARAMETER *ptp, unsigned char *pData)
pData[i] = gWaveModelTable[ptp->oMain.model][a]
* ptp->oMain.top
/ 64
* (gWaveModelTable[ptp->oVolume.model][c] * ptp->oVolume.top / 64 + 64)
* (((gWaveModelTable[ptp->oVolume.model][c] * ptp->oVolume.top) / 64) + 64)
/ 64
* envelopeTable[d]
/ 64