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Merge pull request #3961 from Brandon502/0_15

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Added Pinwheel Expand 1D ->2D effect mapping mode
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Frank 2024-05-15 14:22:10 +02:00 committed by GitHub
commit e33299bbd7
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3 changed files with 118 additions and 2 deletions
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3
wled00/FX.h
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@ -324,7 +324,8 @@ typedef enum mapping1D2D {
M12_Pixels = 0,
M12_pBar = 1,
M12_pArc = 2,
M12_pCorner = 3
M12_pCorner = 3,
M12_sPinwheel = 4
} mapping1D2D_t;
// segment, 80 bytes

116
wled00/FX_fcn.cpp
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@ -637,6 +637,42 @@ uint16_t IRAM_ATTR Segment::nrOfVStrips() const {
return vLen;
}
// Constants for mapping mode "Pinwheel"
#ifndef WLED_DISABLE_2D
constexpr int Pinwheel_Steps_Small = 72; // no holes up to 16x16
constexpr int Pinwheel_Size_Small = 16; // larger than this -> use "Medium"
constexpr int Pinwheel_Steps_Medium = 192; // no holes up to 32x32
constexpr int Pinwheel_Size_Medium = 32; // larger than this -> use "Big"
constexpr int Pinwheel_Steps_Big = 304; // no holes up to 50x50
constexpr int Pinwheel_Size_Big = 50; // larger than this -> use "XL"
constexpr int Pinwheel_Steps_XL = 368;
constexpr float Int_to_Rad_Small = (DEG_TO_RAD * 360) / Pinwheel_Steps_Small; // conversion: from 0...72 to Radians
constexpr float Int_to_Rad_Med = (DEG_TO_RAD * 360) / Pinwheel_Steps_Medium; // conversion: from 0...192 to Radians
constexpr float Int_to_Rad_Big = (DEG_TO_RAD * 360) / Pinwheel_Steps_Big; // conversion: from 0...304 to Radians
constexpr float Int_to_Rad_XL = (DEG_TO_RAD * 360) / Pinwheel_Steps_XL; // conversion: from 0...368 to Radians
constexpr int Fixed_Scale = 512; // fixpoint scaling factor (9bit for fraction)
// Pinwheel helper function: pixel index to radians
static float getPinwheelAngle(int i, int vW, int vH) {
int maxXY = max(vW, vH);
if (maxXY <= Pinwheel_Size_Small) return float(i) * Int_to_Rad_Small;
if (maxXY <= Pinwheel_Size_Medium) return float(i) * Int_to_Rad_Med;
if (maxXY <= Pinwheel_Size_Big) return float(i) * Int_to_Rad_Big;
// else
return float(i) * Int_to_Rad_XL;
}
// Pinwheel helper function: matrix dimensions to number of rays
static int getPinwheelLength(int vW, int vH) {
int maxXY = max(vW, vH);
if (maxXY <= Pinwheel_Size_Small) return Pinwheel_Steps_Small;
if (maxXY <= Pinwheel_Size_Medium) return Pinwheel_Steps_Medium;
if (maxXY <= Pinwheel_Size_Big) return Pinwheel_Steps_Big;
// else
return Pinwheel_Steps_XL;
}
#endif
// 1D strip
uint16_t IRAM_ATTR Segment::virtualLength() const {
#ifndef WLED_DISABLE_2D
@ -652,6 +688,9 @@ uint16_t IRAM_ATTR Segment::virtualLength() const {
case M12_pArc:
vLen = max(vW,vH); // get the longest dimension
break;
case M12_sPinwheel:
vLen = getPinwheelLength(vW, vH);
break;
}
return vLen;
}
@ -718,6 +757,52 @@ void IRAM_ATTR Segment::setPixelColor(int i, uint32_t col)
for (int x = 0; x <= i; x++) setPixelColorXY(x, i, col);
for (int y = 0; y < i; y++) setPixelColorXY(i, y, col);
break;
case M12_sPinwheel: {
// i = angle --> 0 - 296 (Big), 0 - 192 (Medium), 0 - 72 (Small)
float centerX = roundf((vW-1) / 2.0f);
float centerY = roundf((vH-1) / 2.0f);
float angleRad = getPinwheelAngle(i, vW, vH); // angle in radians
float cosVal = cos_t(angleRad);
float sinVal = sin_t(angleRad);
// avoid re-painting the same pixel
int lastX = INT_MIN; // impossible position
int lastY = INT_MIN; // impossible position
// draw line at angle, starting at center and ending at the segment edge
// we use fixed point math for better speed. Starting distance is 0.5 for better rounding
// int_fast16_t and int_fast32_t types changed to int, minimum bits commented
int posx = (centerX + 0.5f * cosVal) * Fixed_Scale; // X starting position in fixed point 18 bit
int posy = (centerY + 0.5f * sinVal) * Fixed_Scale; // Y starting position in fixed point 18 bit
int inc_x = cosVal * Fixed_Scale; // X increment per step (fixed point) 10 bit
int inc_y = sinVal * Fixed_Scale; // Y increment per step (fixed point) 10 bit
int32_t maxX = vW * Fixed_Scale; // X edge in fixedpoint
int32_t maxY = vH * Fixed_Scale; // Y edge in fixedpoint
// Odd rays start further from center if prevRay started at center.
static int prevRay = INT_MIN; // previous ray number
if ((i % 2 == 1) && (i - 1 == prevRay || i + 1 == prevRay)) {
int jump = min(vW/3, vH/3); // can add 2 if using medium pinwheel
posx += inc_x * jump;
posy += inc_y * jump;
}
prevRay = i;
// draw ray until we hit any edge
while ((posx >= 0) && (posy >= 0) && (posx < maxX) && (posy < maxY)) {
// scale down to integer (compiler will replace division with appropriate bitshift)
int x = posx / Fixed_Scale;
int y = posy / Fixed_Scale;
// set pixel
if (x != lastX || y != lastY) setPixelColorXY(x, y, col); // only paint if pixel position is different
lastX = x;
lastY = y;
// advance to next position
posx += inc_x;
posy += inc_y;
}
break;
}
}
return;
} else if (Segment::maxHeight!=1 && (width()==1 || height()==1)) {
@ -833,7 +918,36 @@ uint32_t IRAM_ATTR Segment::getPixelColor(int i)
// use longest dimension
return vW>vH ? getPixelColorXY(i, 0) : getPixelColorXY(0, i);
break;
}
case M12_sPinwheel:
// not 100% accurate, returns pixel at outer edge
// i = angle --> 0 - 296 (Big), 0 - 192 (Medium), 0 - 72 (Small)
float centerX = roundf((vW-1) / 2.0f);
float centerY = roundf((vH-1) / 2.0f);
float angleRad = getPinwheelAngle(i, vW, vH); // angle in radians
float cosVal = cos_t(angleRad);
float sinVal = sin_t(angleRad);
int posx = (centerX + 0.5f * cosVal) * Fixed_Scale; // X starting position in fixed point 18 bit
int posy = (centerY + 0.5f * sinVal) * Fixed_Scale; // Y starting position in fixed point 18 bit
int inc_x = cosVal * Fixed_Scale; // X increment per step (fixed point) 10 bit
int inc_y = sinVal * Fixed_Scale; // Y increment per step (fixed point) 10 bit
int32_t maxX = vW * Fixed_Scale; // X edge in fixedpoint
int32_t maxY = vH * Fixed_Scale; // Y edge in fixedpoint
// trace ray from center until we hit any edge - to avoid rounding problems, we use the same method as in setPixelColor
int x = INT_MIN;
int y = INT_MIN;
while ((posx >= 0) && (posy >= 0) && (posx < maxX) && (posy < maxY)) {
// scale down to integer (compiler will replace division with appropriate bitshift)
x = posx / Fixed_Scale;
y = posy / Fixed_Scale;
// advance to next position
posx += inc_x;
posy += inc_y;
}
return getPixelColorXY(x, y);
break;
}
return 0;
}
#endif

1
wled00/data/index.js
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@ -801,6 +801,7 @@ function populateSegments(s)
`<option value="1" ${inst.m12==1?' selected':''}>Bar</option>`+
`<option value="2" ${inst.m12==2?' selected':''}>Arc</option>`+
`<option value="3" ${inst.m12==3?' selected':''}>Corner</option>`+
`<option value="4" ${inst.m12==4?' selected':''}>Pinwheel</option>`+
`</select></div>`+
`</div>`;
let sndSim = `<div data-snd="si" class="lbl-s hide">Sound sim<br>`+