ps/noiseplug
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solve melody delay and loop in code instead of table

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This commit is contained in:
Joachim Fenkes 2012-08-10 23:39:15 +02:00
parent 8ae6a0bc0b
commit 0c64c693a1
1 changed files with 18 additions and 10 deletions
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28
win/main.cpp
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@ -57,18 +57,16 @@ const int bassline[BASSSIZE] = {
8, 8, 10, 10, 12, 12, 5, 5, 8, 8, 10, 10,
};
#if 0
const uint8_t leadnotes[] = {
0xFF, 0, 3, 5, 7, 8, 10, 12, 14, 15, 17, 19, 20, 22, 24, 26, 27
};
const uint8_t leadtimes[] = {
1, 2, 3, 4, 5, 6, 28, 56
};
#endif
#define LEADSIZE 180
const int leadmelody[LEADSIZE] = { 0, 0, 0, 0,
const int leadmelody[LEADSIZE] = {
12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 10, 0, 7, 0, 5, 7, 3, 1, 0,
12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14, 0, 15, 0, 17, 19, 0, 22, 0, 24, 26, 27, 24, 0,
12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 10, 0, 7, 0, 5, 7, 3, 1, 0,
@ -76,7 +74,7 @@ const int leadmelody[LEADSIZE] = { 0, 0, 0, 0,
8, 3, 0, 8, 10, 12, 0, 14, 15, 19, 17, 0, 12, 7, 0, 12, 14, 15, 0, 14, 15, 19, 17, 0,
8, 3, 0, 8, 10, 12, 14, 0, 15, 19, 17, 15, 0, 14, 15, 17, 19, 0, 15, 14, 15, 12,
};
const int leadtiming[LEADSIZE] = { 0, 62, 200, 250,
const int leadtiming[LEADSIZE] = {
4, 2, 2, 2, 2, 2, 5, 1, 2, 2, 2, 2, 2, 5, 1, 2, 2, 2, 2, 2, 5, 1, 3, 1, 4, 2, 4, 6, 56,
4, 2, 2, 2, 2, 2, 5, 1, 2, 2, 2, 2, 2, 5, 1, 2, 2, 2, 2, 2, 5, 1, 3, 1, 4, 2, 4, 6, 56,
4, 2, 2, 2, 2, 2, 5, 1, 2, 2, 2, 2, 2, 5, 1, 2, 2, 2, 2, 2, 5, 1, 3, 1, 4, 2, 4, 6, 56,
@ -89,9 +87,9 @@ struct leadvoice_s {
uint8_t ptr, timer;
uint16_t osc;
} leads[3] = {
{ 0, 1, 0 },
{ 0, 3, 1601 },
{ 0, 5, 3571 },
{ LEADSIZE, 1, 0 },
{ LEADSIZE, 3, 1601 },
{ LEADSIZE, 5, 3571 },
};
uint8_t boosts;
@ -102,6 +100,17 @@ static unsigned char voice_lead(unsigned long i, int voice_nr)
#define lead_osc leads[voice_nr].osc
#define leadtimer leads[voice_nr].timer
if (leadptr == LEADSIZE)
{
if (i == (0x40000 + 0x400 * voice_nr))
{
leadptr = -1;
leadtimer = 1;
}
else
return 0;
}
if (0 == (i & 0x0FF))
boosts &= ~(1 << voice_nr);
if (0 == (i & 0x1FF))
@ -109,12 +118,11 @@ static unsigned char voice_lead(unsigned long i, int voice_nr)
if (0 == leadtimer)
{
leadptr++;
if (leadptr == LEADSIZE)
leadptr = 3;
leadtimer = leadtiming[leadptr];
boosts |= 1 << voice_nr;
}
uint8_t melody = leadmelody[leadptr];
int note = notes[melody == 1 ? 0 : melody]; // TODO remove this hack by using note table
lead_osc += note;