static void printreal(double x, bool ex) {
bool neg = false;
if(x < zero) {
neg = true;
x = -x;
}
if(x == zero|| (!neg && x < 0.0001e-99) || (neg && x < 0.001e-99)) {
draw_dp(0b10000, 8);
draw(0, 7);
return;//Zero rounding
}
if((!neg && x > 9.9999e+99) || (neg && x > 9.999e+99) || x != x) {//NaN test too
error = true;
draw(15, 7);
return;//Overflow
}
double mask = ((ex)?100000.0:100000000.0);//use exponent
mask = ((!neg)?mask:(mask * tenth));//leave space for negative sign
if(x >= mask || x <= one/mask) {//sci notation as too big
sci(neg, x);
return;
}
dp = (ex?5:8);//set zero placed deciaml
//either defered as sci exponent, zero or error printed so far!!
bool zeros = (x < one);
int check = 0;
while((zeros)?(dp > (neg?2:1)):(x < mask)) {
check = (int)x;
if((double)check == x) break;//exact
--dp;
x *= 10;
}
draw_dp(0b10000, dp);
printint(neg?-check:check, ex?4:7, zeros);//integer part drawn
}
void
display_clock(int x, int y, uint32_t tm)
{
int hh, mm, ss, ms;
hh = (int) tm / 3600000;
mm = (int) (tm % 3600000) / 60000;
ss = (int) (tm % 60000) / 1000;
ms = (int) tm % 1000;
draw_digit(x, y, hh / 10, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_digit(x, y, hh % 10, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_colon(x, y, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += SEG_THICK + SEG_THICK/2;;
draw_digit(x, y, mm / 10, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_digit(x, y, mm % 10, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_colon(x, y, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += SEG_THICK + SEG_THICK/2;;
draw_digit(x, y, ss / 10, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_digit(x, y, ss % 10, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_dp(x, y, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += SEG_THICK + SEG_THICK/2;
draw_digit(x, y, ms / 100, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_digit(x, y, ms / 10, GFX_COLOR_RED, GFX_COLOR_BLACK);
x += DISP_WIDTH + SEG_THICK/2;
draw_digit(x, y, ms, GFX_COLOR_RED, GFX_COLOR_BLACK);
}
/*
* And this is where we will generate our digits
* when we copy them with the DMA2D device we can
* use the color lookup table to set the values.
* in this case we'll use 0, 1, and 2 for background
* foreground, and outline color.
*
* While the digits are kerned in the display they are
* drawn here with a box that is DISP_WIDTH + SKEW_MAX
* pixels wide, but DISP_HEIGHT pixels high.
*/
void
generate_digits(void)
{
uint32_t i;
gfx_init(digit_draw_pixel, DIGIT_FB_WIDTH, DIGIT_FB_HEIGHT, GFX_FONT_LARGE);
/* Cleared to zero (background) */
for (i = 0; i < sizeof(digit_fb); i++) {
digit_fb[i] = 0;
}
for (i = 0; i < 10; i++) {
draw_digit(i * (DISP_WIDTH + SKEW_MAX), 0, i, 1, 2);
}
draw_colon(10 * (DISP_WIDTH + SKEW_MAX), 0, 1, 2);
draw_dp(10 * (DISP_WIDTH + SKEW_MAX) + SEG_THICK + SKEW_MAX, 0, 1, 2);
/* now the digit_fb memory has the 10 digits 0-9, : and . in it */
}
void tick_clock(struct tm *tick_time, bool stop) {
clear();
if((sw_butt&4)==4) {
reg.tm_hour = 0;
reg.tm_min = 0;
reg.tm_sec = 0;
sw_butt ^= 4;//reset
}
if(!stop && (sw_butt&1)==1) sw_tick();
if(++button_sec == 3) mode = delays[mode];//change mode
switch(mode) {
case 0: draw_dp(0b101010, 3);//time
if (!clock_is_24h_style()) {
if(tick_time->tm_hour > 11)
draw(26, 0);//PM
else
draw(23, 0);//AM
}
tock(tick_time, false, clock_is_24h_style());
break;
case 1: draw_dp(0b100, 3);//date
draw(days[tick_time->tm_mon * 3 + 21], 5);
draw(days[tick_time->tm_mon * 3 + 22], 6);
draw(days[tick_time->tm_mon * 3 + 23], 7);
draw(tick_time->tm_mday/10, 3);
draw(tick_time->tm_mday%10, 4);
draw(days[tick_time->tm_wday * 3], 0);
draw(days[tick_time->tm_wday * 3 + 1], 1);
draw(days[tick_time->tm_wday * 3 + 2], 2);
break;
case 2: draw_dp(0b1010 + (((sw_butt&1)==1)?32:0) + (((sw_butt&2)==2)?0b10001:0), 3);//stopwatch
if((sw_butt&2)==2) {
tock(&lap, true, true);
} else {
tock(®, true, true);
}
break;
case 3: printreal(value, false);
break;
case 4: draw_dp(1<<(direction%5), 8);//score
printint(score, 7, false);
break;
case 5: draw_dp(1<<(direction%5), 8);//level
printint(level, 7, false);
draw(28, 0);//L
break;
case 6: draw_dp(1<<(direction%5), 8);//hiscore
printint(hiscore, 7, false);
draw(18, 0);//H
break;
default: break;
}
}