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Rotating palette effect

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This commit is contained in:
TripleWhy 2024-01-13 18:49:17 +01:00
parent 874b24fb32
commit b97186c5bf
1 changed files with 78 additions and 11 deletions
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89
wled00/FX.cpp
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@ -1929,22 +1929,89 @@ static const char _data_FX_MODE_JUGGLE[] PROGMEM = "Juggle@!,Trail;;!;;sx=64,ix=
uint16_t mode_palette() {
uint16_t counter = 0;
if (SEGMENT.speed != 0)
{
counter = (strip.now * ((SEGMENT.speed >> 3) +1)) & 0xFFFF;
counter = counter >> 8;
#ifdef ESP8266
using mathType = int32_t;
using wideMathType = int64_t;
using angleType = uint16_t;
constexpr mathType sInt16Scale = 0x7FFF;
constexpr mathType maxAngle = 0xFFFF;
constexpr mathType staticRotationScale = 256;
constexpr mathType animatedRotationScale = 1;
constexpr int16_t (*sinFunction)(uint16_t) = &sin16;
constexpr int16_t (*cosFunction)(uint16_t) = &cos16;
#else
using mathType = float;
using wideMathType = float;
using angleType = float;
constexpr mathType sInt16Scale = 1.0f;
constexpr mathType maxAngle = M_TWOPI / 256.0;
constexpr mathType staticRotationScale = 1.0f;
constexpr mathType animatedRotationScale = M_TWOPI / double(0xFFFF);
constexpr float (*sinFunction)(float) = &sin_t;
constexpr float (*cosFunction)(float) = &cos_t;
#endif
const bool isMatrix = strip.isMatrix;
const int cols = SEGMENT.virtualWidth();
const int rows = isMatrix ? SEGMENT.virtualHeight() : strip.getSegmentsNum();
const int inputShift = SEGMENT.speed;
const int inputSize = SEGMENT.intensity;
const int inputRotation = SEGMENT.custom1;
const bool inputAnimateShift = SEGMENT.check1;
const bool inputAnimateRotation = SEGMENT.check2;
const bool inputAssumeSquare = SEGMENT.check3;
const int paletteOffset = (!inputAnimateShift) ? (inputShift) : (((strip.now * ((inputShift >> 3) +1)) & 0xFFFF) >> 8);
mathType sinTheta;
mathType cosTheta;
if (rows <= 1) {
sinTheta = 0;
cosTheta = sInt16Scale;
} else if (cols <= 1) {
sinTheta = sInt16Scale;
cosTheta = 0;
} else {
const angleType theta = (!inputAnimateRotation) ? (inputRotation * maxAngle / staticRotationScale) : (((strip.now * ((inputRotation >> 4) +1)) & 0xFFFF) * animatedRotationScale);
sinTheta = sinFunction(theta);
cosTheta = cosFunction(theta);
}
for (int i = 0; i < SEGLEN; i++)
{
uint8_t colorIndex = (i * 255 / SEGLEN) - counter;
SEGMENT.setPixelColor(i, SEGMENT.color_from_palette(colorIndex, false, PALETTE_MOVING_WRAP, 255));
const mathType maxX = std::max(1, cols-1);
const mathType maxY = std::max(1, rows-1);
const mathType maxXIn = inputAssumeSquare ? maxX : mathType(1);
const mathType maxYIn = inputAssumeSquare ? maxY : mathType(1);
const mathType maxXOut = !inputAssumeSquare ? maxX : mathType(1);
const mathType maxYOut = !inputAssumeSquare ? maxY : mathType(1);
const mathType centerX = sInt16Scale * maxXOut / mathType(2);
const mathType centerY = sInt16Scale * maxYOut / mathType(2);
const mathType scale = std::abs(cosTheta) + (std::abs(sinTheta) * maxYOut / maxXOut);
const int yFrom = isMatrix ? 0 : strip.getCurrSegmentId();
const int yTo = isMatrix ? maxY : yFrom;
for (int y = yFrom; y <= yTo; ++y) {
const mathType ytSinTheta = mathType((wideMathType(sinTheta) * wideMathType(y * sInt16Scale - centerY * maxYIn))/wideMathType(maxYIn * scale));
for (int x = 0; x < cols; ++x) {
const mathType xtCosTheta = mathType((wideMathType(cosTheta) * wideMathType(x * sInt16Scale - centerX * maxXIn))/wideMathType(maxXIn * scale));
const mathType sourceX = xtCosTheta + ytSinTheta + centerX;
int colorIndex = (std::min(std::max(sourceX, mathType(0)), maxXOut * sInt16Scale) * 255) / (sInt16Scale * maxXOut);
if (inputSize <= 128) {
colorIndex = (colorIndex * inputSize) / 128;
} else {
// Linear function that maps colorIndex 128=>1, 256=>9
colorIndex = ((inputSize - 112) * colorIndex) / 16;
}
colorIndex += paletteOffset;
const uint32_t color = SEGMENT.color_wheel((uint8_t)colorIndex);
if (isMatrix) {
SEGMENT.setPixelColorXY(x, y, color);
} else {
SEGMENT.setPixelColor(x, color);
}
}
}
return FRAMETIME;
}
static const char _data_FX_MODE_PALETTE[] PROGMEM = "Palette@Cycle speed;;!;;c3=0,o2=0";
static const char _data_FX_MODE_PALETTE[] PROGMEM = "Palette@Shift,Size,Rotation,,,Animate Shift,Animate Rotation,Physical Square;;!;12;o1=1,o2=1";
// WLED limitation: Analog Clock overlay will NOT work when Fire2012 is active