--TEST--
Imagick::setImageAlpha
--SKIPIF--
<?php
$imageMagickRequiredVersion=0x700;
require_once(dirname(__FILE__) . '/skipif.inc');
?>
--FILE--
<?php
$imagick = new Imagick();
$imagick->newPseudoImage(256, 256, 'xc:purple');
$imagick->setImageAlpha(0.5);
$imagick->setImageFormat('png');
$imagick->writeImage("./setAlphaTest.png");
$pixelTypes = array(
Imagick::PIXEL_CHAR => array(128, 0, 128, 128),
Imagick::PIXEL_FLOAT => array(0.50196081399918, 0, 0.50196081399918, 0.5),
Imagick::PIXEL_DOUBLE => array(0.50196078431373, 0, 0.50196078431373, 0.5),
Imagick::PIXEL_SHORT => array(32896, 0, 32896, 32768),
);
foreach ($pixelTypes as $pixelType => $expectedValues) {
$pixels = $imagick->exportImagePixels(0, 0, 1, 1, "RGBA", $pixelType);
for ($i=0; $i<4; $i++) {
$actual = $pixels[$i];
$expected = $expectedValues[$i];
if (abs($actual - $expected) > 0.0000001) {
echo "Pixel values appear incorrect for pixelType $pixelType:";
var_dump($pixels);
break;
}
}
}
echo "Ok";
?>
--EXPECTF--
Ok
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