Lines Matching refs:alpha
179 $alpha = hexdec(substr($bgcolor, 6, 2));
186 $alpha = hexdec('00');
193 $alpha = substr($bgcolor, 3, 1);
197 $alpha = hexdec($alpha . $alpha);
207 $alpha = hexdec('00');
215 $alpha = 0;
218 $alpha = floor($alpha / 2);
219 return array('red' => $red, 'green' => $green, 'blue' => $blue, 'alpha' => $alpha );
245 $alpha = ($rgba & 0x7F000000) >> 24;
251 $alpha = max($alpha, $alpha_calc);
253 … $rgba = imagecolorallocatealpha($reflected, $rgba['red'], $rgba['green'], $rgba['blue'], $alpha);