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reduce melody size

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This commit is contained in:
Joachim Fenkes 2012-08-11 00:08:51 +02:00
parent 0c64c693a1
commit ff006c66b0
1 changed files with 44 additions and 17 deletions
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61
win/main.cpp
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@ -62,27 +62,42 @@ const uint8_t leadnotes[] = {
}; };
const uint8_t leadtimes[] = { const uint8_t leadtimes[] = {
1, 2, 3, 4, 5, 6, 28, 56 1, 2, 3, 4, 5, 6, 28, 14
}; };
#define LEADSIZE 180 const int leadmelody[] = {
const int leadmelody[LEADSIZE] = { 12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14,
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, 0, 12, 0, 14, 10, 0, 7, 0, 5, 7, 3, 1, 0, 0, 0, 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,
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, 0, 15, 0, 17, 19, 0, 22, 0, 24, 26, 27, 24, 0, 0, 0, 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, 24, 20, 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, 0, 0, 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, 24, 20, 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, 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, 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] = { const int leadtiming[] = {
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, 14, 14, 14, 14,
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, 14, 14, 14, 14,
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, 14, 14, 14, 14,
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, 14, 14, 14, 14,
4, 2, 2, 4, 2, 5, 1, 4, 4, 2, 6, 28, 4, 2, 2, 4, 2, 5, 1, 4, 4, 2, 6, 28, 4, 2, 2, 4, 2, 5, 1, 4, 4, 2, 6, 28, 4, 2, 2, 4, 2, 5, 1, 4, 4, 2, 6, 28,
4, 2, 2, 4, 2, 6, 2, 2, 4, 2, 6, 2, 2, 4, 2, 6, 2, 2, 4, 2, 4, 4, 4, 2, 2, 4, 2, 6, 2, 2, 4, 2, 6, 2, 2, 4, 2, 6, 2, 2, 4, 2, 4, 4,
}; };
const uint8_t leaddata[] = {
0x67, 0x24, 0x20, 0x27, 0x20, 0x28, 0x89, 0x0, 0x28, 0x20, 0x27, 0x20, 0x28, 0x89, 0x0, 0x28,
0x20, 0x27, 0x20, 0x28, 0x86, 0x0, 0x44, 0x0, 0x63, 0x24, 0x62, 0xA1, 0xE0, 0xE0, 0xE0, 0xE0,
0x20, 0x29, 0x20, 0x2A, 0x8B, 0x0, 0x4D, 0x0, 0x6E, 0x2F, 0x70, 0xAE, 0xE0, 0xE0, 0xE0, 0xE0,
0x20, 0x29, 0x20, 0x2A, 0x8B, 0x0, 0x4D, 0x0, 0x6E, 0x2F, 0x6E, 0xAC, 0xE0, 0xE0, 0xE0, 0xE0,
0x65, 0x22, 0x20, 0x65, 0x26, 0x87, 0x0, 0x68, 0x69, 0x2B, 0xAA, 0xC0, 0x67, 0x24, 0x20, 0x67,
0x28, 0x89, 0x0, 0x68, 0x69, 0x2B, 0xAA, 0xC0, 0x65, 0x22, 0x20, 0x65, 0x26, 0xA7, 0x28, 0x20,
0x69, 0x2B, 0xAA, 0x29, 0x20, 0x68, 0x29, 0xAA, 0x2B, 0x20, 0x69, 0x28, 0x69, 0x67,
};
const uint8_t leadseq[] = { 0, 1, 0, 2, 0, 1, 0, 3, 4, 5, 6 };
#define LEADSIZE 174
struct leadvoice_s { struct leadvoice_s {
uint8_t ptr, timer; uint8_t ptr, timer;
uint16_t osc; uint16_t osc;
@ -118,19 +133,19 @@ static unsigned char voice_lead(unsigned long i, int voice_nr)
if (0 == leadtimer) if (0 == leadtimer)
{ {
leadptr++; leadptr++;
leadtimer = leadtiming[leadptr]; leadtimer = leadtimes[leaddata[(leadseq[leadptr >> 4] << 4) | (leadptr & 0xF)] >> 5];
boosts |= 1 << voice_nr; boosts |= 1 << voice_nr;
} }
uint8_t melody = leadmelody[leadptr]; uint8_t melody = leadnotes[leaddata[(leadseq[leadptr >> 4] << 4) | (leadptr & 0xF)] & 0x1F];
int note = notes[melody == 1 ? 0 : melody]; // TODO remove this hack by using note table int note = notes[melody]; // TODO remove this hack by using note table
lead_osc += note; lead_osc += note;
// lead_flange += note + (i & 1); // lead_flange += note + (i & 1);
uint8_t sample = ((lead_osc >> 6) & 0x7F) + ((lead_osc >> 6) & 0x3F);// + ((lead_flange >> 6) & 0x3F); // xor also sounds cool uint8_t sample = ((lead_osc >> 6) & 0x7F) + ((lead_osc >> 6) & 0x3F);// + ((lead_flange >> 6) & 0x3F); // xor also sounds cool
//return (!melody) ? 0 : ((lead_osc >> 5) & 0x80) + ((lead_flange >> 6) & 0x3F); //return (!melody) ? 0 : ((lead_osc >> 5) & 0x80) + ((lead_flange >> 6) & 0x3F);
//return (!melody) ? 0 : ((lead_osc & 0x1000) ? ((lead_osc >> 6) & 0x3F) | 0xC0 : 0x40 - ((lead_osc >> 6) & 0x3F)); //return (!melody) ? 0 : ((lead_osc & 0x1000) ? ((lead_osc >> 6) & 0x3F) | 0xC0 : 0x40 - ((lead_osc >> 6) & 0x3F));
return (!melody) ? 0 : ((boosts & (1 << voice_nr)) ? sample : THREEQUARTERS(sample)); return (melody == 0xFF) ? 0 : ((boosts & (1 << voice_nr)) ? sample : THREEQUARTERS(sample));
} }
static inline unsigned char voice_arp(unsigned long i) static inline unsigned char voice_arp(unsigned long i)
@ -167,7 +182,7 @@ static inline unsigned char voice_bass(unsigned long i)
static inline uint8_t next_sample() static inline uint8_t next_sample()
{ {
static unsigned long i = 0;//x40000; static unsigned long i = 0x40000;
uint8_t ret = (voice_lead(i, 0) >> 1) + THREEQUARTERS(voice_lead(i, 1) >> 2) + (voice_lead(i, 2) >> 3) + (voice_bass(i) >> 2) + (voice_arp(i) >> 2); uint8_t ret = (voice_lead(i, 0) >> 1) + THREEQUARTERS(voice_lead(i, 1) >> 2) + (voice_lead(i, 2) >> 3) + (voice_bass(i) >> 2) + (voice_arp(i) >> 2);
i++; i++;
if ((i >> 13) == ARPSIZE) if ((i >> 13) == ARPSIZE)
@ -196,6 +211,18 @@ static const WAVEFORMATEX fmt = {
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
for (int i = 0; i < LEADSIZE; i++)
{
int note, time;
for (note = 0; note < 17; note++)
if (leadnotes[note] == leadmelody[i])
break;
for (time = 0; time < 8; time++)
if (leadtimes[time] == leadtiming[i])
break;
printf("0x%X, ", note | (time << 5));
}
HWAVEOUT out; HWAVEOUT out;
HRESULT rc = waveOutOpen(&out, WAVE_MAPPER, &fmt, NULL, NULL, CALLBACK_NULL); HRESULT rc = waveOutOpen(&out, WAVE_MAPPER, &fmt, NULL, NULL, CALLBACK_NULL);
if (rc != MMSYSERR_NOERROR) if (rc != MMSYSERR_NOERROR)