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Pinwheel Expand1D changes

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cosf/sinf changed to cos_t/sin_t. int_fast32_t and int_fast_16_t changed to int.
This commit is contained in:
Brandon502 2024-05-09 20:38:41 -04:00
parent da79b93387
commit 6a18ce078e
1 changed files with 10 additions and 9 deletions
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19
wled00/FX_fcn.cpp
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@ -738,16 +738,17 @@ void IRAM_ATTR Segment::setPixelColor(int i, uint32_t col)
float centerY = roundf((vH-1) / 2.0f);
// int maxDistance = sqrt(centerX * centerX + centerY * centerY) + 1;
float angleRad = (max(vW,vH) > Pinwheel_Size_Medium) ? float(i) * Int_to_Rad_Big : float(i) * Int_to_Rad_Med; // angle in radians
float cosVal = cosf(angleRad);
float sinVal = sinf(angleRad);
float cosVal = cos_t(angleRad);
float sinVal = sin_t(angleRad);
// 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
constexpr int_fast32_t Fixed_Scale = 512; // fixpoint scaling factor
int_fast32_t posx = (centerX + 0.5f * cosVal) * Fixed_Scale; // X starting position in fixed point
int_fast32_t posy = (centerY + 0.5f * sinVal) * Fixed_Scale; // Y starting position in fixed point
int_fast16_t inc_x = cosVal * Fixed_Scale; // X increment per step (fixed point)
int_fast16_t inc_y = sinVal * Fixed_Scale; // Y increment per step (fixed point)
// int_fast16_t and int_fast32_t types changed to int, minimum bits commented
constexpr int Fixed_Scale = 512; // fixpoint scaling factor 18 bit
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
@ -885,8 +886,8 @@ uint32_t IRAM_ATTR Segment::getPixelColor(int i)
float centerX = (vW - 1) / 2.0f;
float centerY = (vH - 1) / 2.0f;
float angleRad = (max(vW,vH) > Pinwheel_Size_Medium) ? float(i) * Int_to_Rad_Big : float(i) * Int_to_Rad_Med; // angle in radians
int x = roundf(centerX + distance * cosf(angleRad));
int y = roundf(centerY + distance * sinf(angleRad));
int x = roundf(centerX + distance * cos_t(angleRad));
int y = roundf(centerY + distance * sin_t(angleRad));
return getPixelColorXY(x, y);
break;
}