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police_base optimisations.

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This commit is contained in:
Blaz Kristan 2021-09-08 23:26:41 +02:00
parent 4d6116ed40
commit c1d47290b1
1 changed files with 6 additions and 4 deletions
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10
wled00/FX.cpp
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@ -1218,9 +1218,11 @@ uint16_t WS2812FX::mode_loading(void) {
//American Police Light with all LEDs Red and Blue
uint16_t WS2812FX::police_base(uint32_t color1, uint32_t color2, uint16_t width)
{
uint32_t it = now / map(SEGMENT.speed, 0, 255, 96, 12);
uint16_t delay = 1 + (FRAMETIME<<3) / SEGLEN; // longer segments should change faster
uint32_t it = now / map(SEGMENT.speed, 0, 255, delay<<4, delay);
uint16_t offset = it % SEGLEN;
if (!width) width = 1;
for (uint16_t i = 0; i < width; i++) {
uint16_t indexR = (offset + i) % SEGLEN;
uint16_t indexB = (offset + i + (SEGLEN>>1)) % SEGLEN;
@ -1242,7 +1244,7 @@ uint16_t WS2812FX::mode_police_all()
uint16_t WS2812FX::mode_police()
{
fill(SEGCOLOR(1));
return police_base(RED, BLUE, (1 + ((SEGLEN*SEGMENT.intensity)>>9))); // max width is half the strip
return police_base(RED, BLUE, ((SEGLEN*(SEGMENT.intensity+1))>>9)); // max width is half the strip
}
@ -1250,7 +1252,7 @@ uint16_t WS2812FX::mode_police()
uint16_t WS2812FX::mode_two_areas()
{
fill(SEGCOLOR(2));
return police_base(SEGCOLOR(0), SEGCOLOR(1), (1 + ((SEGLEN*SEGMENT.intensity)>>9))); // max width is half the strip
return police_base(SEGCOLOR(0), SEGCOLOR(1), ((SEGLEN*(SEGMENT.intensity+1))>>9)); // max width is half the strip
}
@ -1260,7 +1262,7 @@ uint16_t WS2812FX::mode_two_dots()
fill(SEGCOLOR(2));
uint32_t color2 = (SEGCOLOR(1) == SEGCOLOR(2)) ? SEGCOLOR(0) : SEGCOLOR(1);
return police_base(SEGCOLOR(0), color2, (1 + ((SEGLEN*SEGMENT.intensity)>>9))); // max width is half the strip
return police_base(SEGCOLOR(0), color2, ((SEGLEN*(SEGMENT.intensity+1))>>9)); // max width is half the strip
}