function _color_blend

7.x color.module	`_color_blend($img, $hex1, $hex2, $alpha)`
6.x color.module	`_color_blend($img, $hex1, $hex2, $alpha)`

Blend two hex colors and return the GD color.

1 call to _color_blend()

_color_render_images in drupal-6.x/modules/color/color.module: Render images that match a given palette.

File

drupal-6.x/modules/color/color.module, line 600

Code

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