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Move tristate_square8 to FX_fcn.cpp

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This commit is contained in:
cschwinne 2020-09-27 14:42:14 +02:00
parent 2cc6edd868
commit 1e3834dc3d
3 changed files with 37 additions and 34 deletions
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36
wled00/FX.cpp
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@ -3713,45 +3713,19 @@ uint16_t WS2812FX::mode_dancing_shadows(void)
return FRAMETIME;
}
/*
* Generates a tristate square wave w/ attac & decay
* @param x input value 0-255
* @param pulsewidth 0-127
* @param attdec attac & decay, max. pulsewidth / 2
* @returns signed waveform value
*/
int8_t tristate_square8(uint8_t x, uint8_t pulsewidth, uint8_t attdec) {
int8_t a;
if (x > 127) {
a = -127;
x -= 127;
}
else
a = 127;
if (x < attdec) { //inc to max
return (int16_t) x * a / attdec;
}
else if (x < pulsewidth - attdec) { //max
return a;
}
else if (x < pulsewidth) { //dec to 0
return (int16_t) (pulsewidth - x) * a / attdec;
}
return 0;
}
/*
Imitates a washing machine, rotating same waves forward, then pause, then backward.
By Stefan Seegel
*/
uint16_t WS2812FX::mode_washing_machine(void) {
int8_t speed= tristate_square8((uint16_t) (SEGMENT.speed + 100) * now / 20000, 90, 15) / 15;
float speed = tristate_square8(now >> 7, 90, 15);
float quot = 32.0f - ((float)SEGMENT.speed / 16.0f);
speed /= quot;
SEGENV.step += speed;
SEGENV.step += (speed * 128.0f);
for (int i=0; i<SEGLEN; i++) {
uint8_t col = sin8(((SEGMENT.intensity / 25 + 1) * 255 * i / SEGLEN) + SEGENV.step);
uint8_t col = sin8(((SEGMENT.intensity / 25 + 1) * 255 * i / SEGLEN) + (SEGENV.step >> 7));
setPixelColor(i, color_from_palette(col, false, PALETTE_SOLID_WRAP, 3));
}

5
wled00/FX.h
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@ -487,6 +487,9 @@ class WS2812FX {
gamma8(uint8_t),
get_random_wheel_index(uint8_t);
int8_t
tristate_square8(uint8_t x, uint8_t pulsewidth, uint8_t attdec);
uint16_t
ablMilliampsMax,
currentMilliamps,
@ -715,7 +718,7 @@ const char JSON_mode_names[] PROGMEM = R"=====([
"Twinklefox","Twinklecat","Halloween Eyes","Solid Pattern","Solid Pattern Tri","Spots","Spots Fade","Glitter","Candle","Fireworks Starburst",
"Fireworks 1D","Bouncing Balls","Sinelon","Sinelon Dual","Sinelon Rainbow","Popcorn","Drip","Plasma","Percent","Ripple Rainbow",
"Heartbeat","Pacifica","Candle Multi", "Solid Glitter","Sunrise","Phased","Twinkleup","Noise Pal", "Sine","Phased Noise",
"Flow","Chunchun","Dancing Shadows", "Washing machine"
"Flow","Chunchun","Dancing Shadows","Washing Machine"
])=====";

28
wled00/FX_fcn.cpp
View File

@ -699,6 +699,32 @@ uint16_t WS2812FX::triwave16(uint16_t in)
return 0xFFFF - (in - 0x8000)*2;
}
/*
* Generates a tristate square wave w/ attac & decay
* @param x input value 0-255
* @param pulsewidth 0-127
* @param attdec attac & decay, max. pulsewidth / 2
* @returns signed waveform value
*/
int8_t WS2812FX::tristate_square8(uint8_t x, uint8_t pulsewidth, uint8_t attdec) {
int8_t a = 127;
if (x > 127) {
a = -127;
x -= 127;
}
if (x < attdec) { //inc to max
return (int16_t) x * a / attdec;
}
else if (x < pulsewidth - attdec) { //max
return a;
}
else if (x < pulsewidth) { //dec to 0
return (int16_t) (pulsewidth - x) * a / attdec;
}
return 0;
}
/*
* Put a value 0 to 255 in to get a color value.
* The colours are a transition r -> g -> b -> back to r
@ -844,7 +870,7 @@ void WS2812FX::handle_palette(void)
load_gradient_palette(paletteIndex -13);
}
if (singleSegmentMode && paletteFade) //only blend if just one segment uses FastLED mode
if (singleSegmentMode && paletteFade && SEGENV.call > 0) //only blend if just one segment uses FastLED mode
{
nblendPaletteTowardPalette(currentPalette, targetPalette, 48);
} else