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This commit is contained in:
Joachim Fenkes 2012-08-08 00:06:29 +02:00
parent 1a72da3305
commit accd29361d
1 changed files with 33 additions and 19 deletions
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52
win/main.cpp
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@ -51,8 +51,8 @@ int bassline[BASSSIZE] = {
8, 8, 10, 10, 12, 12, 5, 5, 8, 8, 10, 10, 8, 8, 10, 10, 12, 12, 5, 5, 8, 8, 10, 10,
}; };
#define LEADSIZE 157 #define LEADSIZE 158
int leadmelody[LEADSIZE] = { //0, 0, int leadmelody[LEADSIZE] = { 0, //0, 0,
12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 10, 0, 7, 5, 7, 3, 1, 0, 12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 10, 0, 7, 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, 24, 26, 27, 24, 0, 12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14, 0, 15, 0, 17, 19, 0, 22, 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, 5, 7, 3, 1, 0, 12, 7, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 15, 0, 14, 0, 12, 0, 14, 10, 0, 7, 5, 7, 3, 1, 0,
@ -60,36 +60,44 @@ int leadmelody[LEADSIZE] = { //0, 0,
8, 3, 0, 8, 10, 12, 14, 15, 19, 17, 0, 12, 7, 0, 12, 14, 15, 14, 15, 19, 17, 0, 8, 3, 0, 8, 10, 12, 14, 15, 19, 17, 0, 12, 7, 0, 12, 14, 15, 14, 15, 19, 17, 0,
8, 3, 0, 8, 10, 12, 14, 15, 19, 17, 15, 0, 14, 15, 17, 19, 0, 15, 14, 15, 12, 8, 3, 0, 8, 10, 12, 14, 15, 19, 17, 15, 0, 14, 15, 17, 19, 0, 15, 14, 15, 12,
}; };
int leadtiming[LEADSIZE] = { //131, 125, int leadtiming[LEADSIZE] = { 0, //131, 125,
2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 1, 2, 3, 28, 4, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 4, 4, 2, 4, 6, 56,
2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 1, 2, 3, 28, 4, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 4, 4, 2, 4, 6, 56,
2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 1, 2, 3, 28, 4, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 4, 4, 2, 4, 6, 56,
2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 1, 2, 3, 28, 4, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 4, 2, 4, 4, 2, 4, 6, 56,
2, 1, 1, 2, 1, 3, 2, 2, 1, 3, 14, 2, 1, 1, 2, 1, 3, 2, 2, 1, 3, 14, 4, 2, 2, 4, 2, 6, 4, 4, 2, 6, 28, 4, 2, 2, 4, 2, 6, 4, 4, 2, 6, 28,
2, 1, 1, 2, 1, 3, 2, 2, 1, 3, 1, 1, 2, 1, 3, 1, 1, 2, 1, 2, 2, 4, 2, 2, 4, 2, 6, 4, 4, 2, 6, 2, 2, 4, 2, 6, 2, 2, 4, 2, 4, 4,
}; };
static inline unsigned char voice_lead(unsigned long i) struct leadvoice_s {
{ uint8_t ptr, timer;
static uint8_t leadptr = 0xFF; uint16_t osc;
static uint16_t lead_osc = 0; } leads[3] = {
static uint16_t lead_flange = 0; { 0, 1, 0 },
static uint8_t leadtimer = 1; { 0, 3, 0 },
{ 0, 5, 0 },
};
if (0 == (i & 0x3FF)) static unsigned char voice_lead(unsigned long i, int voice_nr)
{
#define leadptr leads[voice_nr].ptr
#define lead_osc leads[voice_nr].osc
#define leadtimer leads[voice_nr].timer
if (0 == (i & 0x1FF))
leadtimer--; leadtimer--;
if (0 == leadtimer) if (0 == leadtimer)
{ {
leadptr++; leadptr++;
if (leadptr == LEADSIZE) if (leadptr == LEADSIZE)
leadptr = 1; leadptr = 2;
leadtimer = leadtiming[leadptr]; leadtimer = leadtiming[leadptr];
} }
uint8_t melody = leadmelody[leadptr]; uint8_t melody = leadmelody[leadptr];
int note = notes[melody == 1 ? 0 : melody]; // TODO remove this hack by using note table int note = notes[melody == 1 ? 0 : 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);
//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 : ((lead_osc >> 6) & 0x7F) + ((lead_osc >> 6) & 0x3F);// + ((lead_flange >> 6) & 0x3F); // xor also sounds cool return (!melody) ? 0 : ((lead_osc >> 6) & 0x7F) + ((lead_osc >> 6) & 0x3F);// + ((lead_flange >> 6) & 0x3F); // xor also sounds cool
@ -119,11 +127,17 @@ static inline unsigned char voice_bass(unsigned long i)
void fill(char *data) void fill(char *data)
{ {
static unsigned long i = 0x40000; static unsigned long i = 0x40000;
static uint8_t max = 0;
for (int j = 0; j < 4096; j++) for (int j = 0; j < 4096; j++)
{ {
unsigned char sample = (voice_lead(i) >> 1) + (voice_bass(i) >> 2) + (voice_arp(i) >> 2); unsigned char sample = (voice_lead(i, 0) >> 1) + ((voice_lead(i, 1) >> 4) * 3) + (voice_lead(i, 2) >> 3) + (voice_bass(i) >> 2) + (voice_arp(i) >> 2);
data[j] = sample; data[j] = sample;
if (sample > max)
{
max = sample;
printf("%x\n", max);
}
i++; i++;
if ((i >> 13) == ARPSIZE) if ((i >> 13) == ARPSIZE)
i = 16 << 13; i = 16 << 13;