mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-07-30 04:39:06 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

LibWeb/CSS: Add support for the display-p3 color space in color()

Browse source 
This color space is often used as a reference in WPT tests, having
support for it makes us pass 15 new tests:
  - css/css-color/display-p3-001.html
  - css/css-color/display-p3-002.html
  - css/css-color/display-p3-003.html
  - css/css-color/display-p3-004.html
  - css/css-color/display-p3-005.html
  - css/css-color/display-p3-006.html
  - css/css-color/lab-008.html
  - css/css-color/lch-008.html
  - css/css-color/oklab-008.html
  - css/css-color/oklch-008.html
  - css/css-color/predefined-005.html
  - css/css-color/predefined-006.html
  - css/css-color/xyz-005.html
  - css/css-color/xyz-d50-005.html
  - css/css-color/xyz-d65-005.html
This commit is contained in:
Lucas CHOLLET 2024-11-14 00:26:39 -05:00 • committed by Andreas Kling
commit 596a4e55dd
Notes: github-actions[bot] 2024-11-16 09:30:55 +00:00
17 changed files with 216 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

20
Libraries/LibGfx/Color.cpp
View file

@ -433,6 +433,26 @@ Color Color::from_a98rgb(float r, float g, float b, float alpha)
return from_xyz65(x, y, z, alpha);
}
// https://www.w3.org/TR/css-color-4/#predefined-a98-rgb
Color Color::from_display_p3(float r, float g, float b, float alpha)
{
auto to_linear = [](float c) {
if (c < 0.04045)
return c / 12.92;
return pow((c + 0.055) / (1.055), 2.4);
};
auto linear_r = to_linear(r);
auto linear_g = to_linear(g);
auto linear_b = to_linear(b);
float x = 0.48657095 * linear_r + 0.26566769 * linear_g + 0.19821729 * linear_b;
float y = 0.22897456 * linear_r + 0.69173852 * linear_g + 0.07928691 * linear_b;
float z = 0.00000000 * linear_r + 0.04511338 * linear_g + 1.04394437 * linear_b;
return from_xyz65(x, y, z, alpha);
}
Color Color::from_xyz50(float x, float y, float z, float alpha)
{
// See commit description for these values