Jan/WLED_MM_Infinity
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remove slow and inaccurate math from time critical code

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as it turns out, the "_t" functions (from wled_math.cpp) are about 3 times (!!!) slower than the standard functions.

* mapping modes : Arc and Circle
* effects: 2D Drift, 2D Drift Rose
This commit is contained in:
Frank
2024-02-25 19:36:29 +01:00
parent ff56cf0ee9
commit e0f08864a2
2 changed files with 16 additions and 16 deletions
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12
wled00/FX_fcn.cpp
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@@ -892,8 +892,8 @@ void IRAM_ATTR_YN Segment::setPixelColor(int i, uint32_t col) //WLEDMM: IRAM_ATT
float step = HALF_PI / (2.85f*i);
for (float rad = 0.0f; rad <= HALF_PI+step/2; rad += step) {
// may want to try float version as well (with or without antialiasing)
int x = roundf(sin_t(rad) * i);
int y = roundf(cos_t(rad) * i);
int x = roundf(sinf(rad) * i);
int y = roundf(cosf(rad) * i);
setPixelColorXY(x, y, col);
}
// Bresenham’s Algorithm (may not fill every pixel)
@@ -923,8 +923,8 @@ void IRAM_ATTR_YN Segment::setPixelColor(int i, uint32_t col) //WLEDMM: IRAM_ATT
case M12_sCircle: //WLEDMM
if (vStrip > 0)
{
int x = roundf(sin_t(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
int y = roundf(cos_t(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
int x = roundf(sinf(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
int y = roundf(cosf(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
setPixelColorXY(x + vW/2, y + vH/2, col);
}
else // pArc -> circle
@@ -1101,8 +1101,8 @@ uint32_t Segment::getPixelColor(int i)
case M12_sCircle: //WLEDMM
if (vStrip > 0)
{
int x = roundf(sin_t(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
int y = roundf(cos_t(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
int x = roundf(sinf(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
int y = roundf(cosf(360*i/SEGLEN*DEG_TO_RAD) * vW * (vStrip+1)/nrOfVStrips());
return getPixelColorXY(x + vW/2, y + vH/2);
}
else