function _color_blend

Same name and namespace in other branches
  1. 9 core/modules/color/color.module \_color_blend()
  2. 7.x modules/color/color.module \_color_blend()

Blends two hex colors and returns the GD color.

1 call to _color_blend()
_color_render_images in core/modules/color/color.module
Renders images that match a given palette.

File

core/modules/color/color.module, line 752

Code

function _color_blend($img, $hex1, $hex2, $alpha) {
  $in1 = _color_unpack($hex1);
  $in2 = _color_unpack($hex2);
  $out = [
    $img,
  ];
  for ($i = 0; $i < 3; ++$i) {
    $out[] = $in1[$i] + ($in2[$i] - $in1[$i]) * $alpha;
  }
  return call_user_func_array('imagecolorallocate', $out);
}

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