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explicit L

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Caio Freitas de Oliveira 2022-10-04 21:08:38 -03:00 committed by Brenden Matthews
parent 3261ec4a69
commit 02ec45dc03
1 changed files with 11 additions and 11 deletions
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22
src/hcl_gradient.cc
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@ -78,7 +78,7 @@ void scaled_rgb_to_scaled_hcl(long *const rgb, long *hcl) {
long value = rgb[0] > rgb[1] ? std::max(rgb[0], rgb[2]) : std::max(rgb[1], rgb[2]); long value = rgb[0] > rgb[1] ? std::max(rgb[0], rgb[2]) : std::max(rgb[1], rgb[2]);
long minimum = rgb[0] < rgb[1] ? std::min(rgb[0], rgb[2]) : std::min(rgb[1], rgb[2]); long minimum = rgb[0] < rgb[1] ? std::min(rgb[0], rgb[2]) : std::min(rgb[1], rgb[2]);
long chroma = value - minimum; long chroma = value - minimum;
long luma = (2627 * rgb[0] + 6780 * rgb[1] + 593 * rgb[2]) / 10000; //Use Rec.2020 color space long luma = (2627L * rgb[0] + 6780L * rgb[1] + 593L * rgb[2]) / 10000L; //Use Rec.2020 color space
long hue; long hue;
if (chroma == 0) { if (chroma == 0) {
@ -102,14 +102,14 @@ void scaled_rgb_to_scaled_hcl(long *const rgb, long *hcl) {
} }
hcl[0] = hue; hcl[0] = hue;
hcl[1] = chroma * 360; hcl[1] = chroma * 360L;
hcl[2] = luma * 360; hcl[2] = luma * 360L;
} }
void scaled_hcl_to_scaled_rgb(long *const hcl, long *rgb) { void scaled_hcl_to_scaled_rgb(long *const hcl, long *rgb) {
long hue = hcl[0] % CONST_SCALE360; long hue = hcl[0] % CONST_SCALE360;
long chroma = hcl[1] / 360; long chroma = hcl[1] / 360L;
long luma = hcl[2] / 360; long luma = hcl[2] / 360L;
long h = hue / 60L; long h = hue / 60L;
long x = (chroma * (CONST_SCALE - std::abs(h % CONST_SCALE2 - CONST_SCALE))) / CONST_SCALE; long x = (chroma * (CONST_SCALE - std::abs(h % CONST_SCALE2 - CONST_SCALE))) / CONST_SCALE;
@ -117,32 +117,32 @@ void scaled_hcl_to_scaled_rgb(long *const hcl, long *rgb) {
// use Rec.2020 color space // use Rec.2020 color space
if (hue < CONST_SCALE60) { if (hue < CONST_SCALE60) {
m = luma - (2627 * chroma + 6780 * x) / 10000; m = luma - (2627L * chroma + 6780L * x) / 10000L;
rgb[0] = rgb[1] = rgb[2] = m; rgb[0] = rgb[1] = rgb[2] = m;
rgb[0] += chroma; rgb[0] += chroma;
rgb[1] += x; rgb[1] += x;
} else if (hue < CONST_SCALE120) { } else if (hue < CONST_SCALE120) {
m = luma - (2627 * x + 6780 * chroma) / 10000; m = luma - (2627L * x + 6780L * chroma) / 10000L;
rgb[0] = rgb[1] = rgb[2] = m; rgb[0] = rgb[1] = rgb[2] = m;
rgb[0] += x; rgb[0] += x;
rgb[1] += chroma; rgb[1] += chroma;
} else if (hue < CONST_SCALE180) { } else if (hue < CONST_SCALE180) {
m = luma - (6780 * chroma + 593 * x) / 10000; m = luma - (6780L * chroma + 593L * x) / 10000L;
rgb[0] = rgb[1] = rgb[2] = m; rgb[0] = rgb[1] = rgb[2] = m;
rgb[1] += chroma; rgb[1] += chroma;
rgb[2] += x; rgb[2] += x;
} else if (hue < CONST_SCALE240) { } else if (hue < CONST_SCALE240) {
m = luma - (6780 * x + 593 * chroma) / 10000; m = luma - (6780L * x + 593L * chroma) / 10000L;
rgb[0] = rgb[1] = rgb[2] = m; rgb[0] = rgb[1] = rgb[2] = m;
rgb[1] += x; rgb[1] += x;
rgb[2] += chroma; rgb[2] += chroma;
} else if (hue < CONST_SCALE300) { } else if (hue < CONST_SCALE300) {
m = luma - (2627 * x + 593 * chroma) / 10000; m = luma - (2627L * x + 593L * chroma) / 10000L;
rgb[0] = rgb[1] = rgb[2] = m; rgb[0] = rgb[1] = rgb[2] = m;
rgb[2] += chroma; rgb[2] += chroma;
rgb[0] += x; rgb[0] += x;
} else { } else {
m = luma - (2627 * chroma + 593 * x) / 10000; m = luma - (2627L * chroma + 593L * x) / 10000L;
rgb[0] = rgb[1] = rgb[2] = m; rgb[0] = rgb[1] = rgb[2] = m;
rgb[2] += x; rgb[2] += x;
rgb[0] += chroma; rgb[0] += chroma;