Файл: vendor/intervention/image/src/Drivers/Gd/Encoders/PngEncoder.php
Строк: 104
<?php
declare(strict_types=1);
namespace InterventionImageDriversGdEncoders;
use GdImage;
use InterventionImageDriversGdCloner;
use InterventionImageEncodersPngEncoder as GenericPngEncoder;
use InterventionImageExceptionsDriverException;
use InterventionImageExceptionsStreamException;
use InterventionImageExceptionsInvalidArgumentException;
use InterventionImageInterfacesEncodedImageInterface;
use InterventionImageInterfacesImageInterface;
use InterventionImageInterfacesSpecializedInterface;
class PngEncoder extends GenericPngEncoder implements SpecializedInterface
{
/**
* {@inheritdoc}
*
* @see EncoderInterface::encode()
*
* @throws InvalidArgumentException
* @throws StreamException
* @throws DriverException
*/
public function encode(ImageInterface $image): EncodedImageInterface
{
$output = $this->prepareOutput($image);
return $this->createEncodedImage(function ($stream) use ($output): void {
imageinterlace($output, $this->interlaced);
imagepng($output, $stream, -1);
}, 'image/png');
}
/**
* Prepare given image instance for PNG format output according to encoder settings
*
* @throws InvalidArgumentException
* @throws DriverException
*/
private function prepareOutput(ImageInterface $image): GdImage
{
if ($this->indexed) {
$output = clone $image;
$output->reduceColors(256);
return $output->core()->native();
}
return Cloner::clone($image->core()->native());
}
}