void mandelUpdate() {
int xmin,xmax,ymin,ymax;
if (mandel.dirty) {
xmin = 0;
xmax = RESX;
ymin = 0;
ymax = RESY;
mandel.dirty = false;
} else if (mandel.dleft) {
lcdShift(-1,0,false);
xmin = 0;
xmax = 1;
ymin = 0;
ymax = RESY;
mandel.dleft = false;
} else if (mandel.dright) {
lcdShift(1,0,false);
xmin = RESX-1;
xmax = RESX;
ymin = 0;
ymax = RESY;
mandel.dright = false;
} else if (mandel.dup) {
lcdShift(0,-1,false);
xmin=0;
xmax=RESX;
ymin=0;
ymax=1;
mandel.dup = false;
} else if (mandel.ddown) {
lcdShift(0,1,false);
xmin=0;
xmax=RESX;
ymin=RESY-1;
ymax=RESY;
mandel.ddown = false;
} else {
return;
}
for (int x = xmin; x<xmax; x++) {
for (int y = ymin; y<ymax; y++) {
mandelPixel(x,y);
}
}
}
void spectrum_callback(uint8_t* buf, int bufLen)
{
TOGGLE(LED2);
if (displayMode == MODE_SPECTRUM)
lcdClear();
else if (displayMode == MODE_WATERFALL)
lcdShift(0,1,0);
for(int i = 0; i < 128; i++) // display 128 FFT magnitude points
{
// FFT unwrap:
uint8_t v;
if(i < 64) // negative frequencies
v = buf[(bufLen/2)+64+i];
else // positive frequencies
v = buf[i-64];
// fill display
if (displayMode == MODE_SPECTRUM)
{
for(int j = 0; j < (v/2); j++)
lcdBuffer[i+RESX*(RESY-j)] = 0x00;
}
else if (displayMode == MODE_WATERFALL)
{
lcdSetPixel(i,RESY-1,v);
}
}
// text info
lcdSetCrsr(0,0);
lcdPrint("f=");
lcdPrint(IntToStr(freq/1000000,4,F_LONG));
lcdPrintln("MHz ");
lcdPrintln("-5MHz 0 +5MHz");
lcdDisplay();
}
static void checkScroll(void){
if(y+font->u8Height>RESY){
lcdShift(0,y+font->u8Height-RESY,false);
y=RESY-font->u8Height;
};
}