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minor optimization for PinWheel mapping

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use "float" math functions. These are slightly faster. By avoiding to pull in "double" math we also save some flash space.
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Frank
2024-02-23 12:34:14 +01:00
committed by GitHub
parent 07b770958f
commit 96d275e2b9
1 changed files with 4 additions and 4 deletions
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8
wled00/FX_fcn.cpp
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@@ -942,11 +942,11 @@ void IRAM_ATTR_YN Segment::setPixelColor(int i, uint32_t col) //WLEDMM: IRAM_ATT
// int maxDistance = sqrt(centerX * centerX + centerY * centerY) + 1; // int maxDistance = sqrt(centerX * centerX + centerY * centerY) + 1;
int distance = 0; int distance = 0;
float cosVal = cos(i * DEG_TO_RAD); // i = current angle float cosVal = cosf((float)i * (float)DEG_TO_RAD); // i = current angle
float sinVal = sin(i * DEG_TO_RAD); float sinVal = sinf((float)i * (float)DEG_TO_RAD);
while (true) { while (true) {
int x = round(centerX + distance * cosVal); int x = roundf(centerX + distance * cosVal);
int y = round(centerY + distance * sinVal); int y = roundf(centerY + distance * sinVal);
// Check bounds // Check bounds
if (x < 0 || x >= vW || y < 0 || y >= vH) { if (x < 0 || x >= vW || y < 0 || y >= vH) {
break; break;