mirror of
https://github.com/the-djmaze/snappymail.git
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880 lines
27 KiB
PHP
880 lines
27 KiB
PHP
<?php
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/*
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* This file is part of the Imagine package.
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*
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* (c) Bulat Shakirzyanov <mallluhuct@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Imagine\Imagick;
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use Imagine\Exception\OutOfBoundsException;
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use Imagine\Exception\InvalidArgumentException;
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use Imagine\Exception\RuntimeException;
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use Imagine\Image\AbstractImage;
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use Imagine\Image\Box;
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use Imagine\Image\BoxInterface;
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use Imagine\Image\Metadata\MetadataBag;
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use Imagine\Image\Palette\Color\ColorInterface;
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use Imagine\Image\Fill\FillInterface;
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use Imagine\Image\Fill\Gradient\Horizontal;
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use Imagine\Image\Fill\Gradient\Linear;
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use Imagine\Image\Point;
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use Imagine\Image\PointInterface;
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use Imagine\Image\ProfileInterface;
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use Imagine\Image\ImageInterface;
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use Imagine\Image\Palette\PaletteInterface;
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/**
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* Image implementation using the Imagick PHP extension
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*/
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final class Image extends AbstractImage
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{
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/**
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* @var \Imagick
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*/
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private $imagick;
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/**
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* @var Layers
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*/
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private $layers;
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/**
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* @var PaletteInterface
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*/
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private $palette;
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/**
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* @var Boolean
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*/
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private static $supportsColorspaceConversion;
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private static $colorspaceMapping = array(
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PaletteInterface::PALETTE_CMYK => \Imagick::COLORSPACE_CMYK,
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PaletteInterface::PALETTE_RGB => \Imagick::COLORSPACE_RGB,
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PaletteInterface::PALETTE_GRAYSCALE => \Imagick::COLORSPACE_GRAY,
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);
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/**
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* Constructs a new Image instance
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*
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* @param \Imagick $imagick
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* @param PaletteInterface $palette
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* @param MetadataBag $metadata
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*/
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public function __construct(\Imagick $imagick, PaletteInterface $palette, MetadataBag $metadata)
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{
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$this->metadata = $metadata;
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$this->detectColorspaceConversionSupport();
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$this->imagick = $imagick;
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if (static::$supportsColorspaceConversion) {
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$this->setColorspace($palette);
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}
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$this->palette = $palette;
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$this->layers = new Layers($this, $this->palette, $this->imagick);
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}
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/**
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* Destroys allocated imagick resources
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*/
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public function __destruct()
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{
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if ($this->imagick instanceof \Imagick) {
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$this->imagick->clear();
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$this->imagick->destroy();
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}
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}
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/**
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* Returns the underlying \Imagick instance
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*
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* @return \Imagick
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*/
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public function getImagick()
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{
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return $this->imagick;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function copy()
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{
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try {
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if (version_compare(phpversion("imagick"), "3.1.0b1", ">=") || defined("HHVM_VERSION")) {
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$clone = clone $this->imagick;
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} else {
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$clone = $this->imagick->clone();
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}
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} catch (\ImagickException $e) {
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throw new RuntimeException('Copy operation failed', $e->getCode(), $e);
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}
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return new self($clone, $this->palette, clone $this->metadata);
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function crop(PointInterface $start, BoxInterface $size)
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{
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if (!$start->in($this->getSize())) {
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throw new OutOfBoundsException('Crop coordinates must start at minimum 0, 0 position from top left corner, crop height and width must be positive integers and must not exceed the current image borders');
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}
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try {
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$this->imagick->cropImage($size->getWidth(), $size->getHeight(), $start->getX(), $start->getY());
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// Reset canvas for gif format
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$this->imagick->setImagePage(0, 0, 0, 0);
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} catch (\ImagickException $e) {
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throw new RuntimeException('Crop operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function flipHorizontally()
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{
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try {
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$this->imagick->flopImage();
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} catch (\ImagickException $e) {
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throw new RuntimeException('Horizontal Flip operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function flipVertically()
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{
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try {
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$this->imagick->flipImage();
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} catch (\ImagickException $e) {
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throw new RuntimeException('Vertical flip operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function strip()
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{
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try {
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try {
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$this->profile($this->palette->profile());
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} catch (\Exception $e) {
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// here we discard setting the profile as the previous incorporated profile
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// is corrupted, let's now strip the image
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}
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$this->imagick->stripImage();
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} catch (\ImagickException $e) {
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throw new RuntimeException('Strip operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function paste(ImageInterface $image, PointInterface $start)
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{
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if (!$image instanceof self) {
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throw new InvalidArgumentException(sprintf('Imagick\Image can only paste() Imagick\Image instances, %s given', get_class($image)));
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}
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if (!$this->getSize()->contains($image->getSize(), $start)) {
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throw new OutOfBoundsException('Cannot paste image of the given size at the specified position, as it moves outside of the current image\'s box');
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}
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try {
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$this->imagick->compositeImage($image->imagick, \Imagick::COMPOSITE_DEFAULT, $start->getX(), $start->getY());
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} catch (\ImagickException $e) {
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throw new RuntimeException('Paste operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function resize(BoxInterface $size, $filter = ImageInterface::FILTER_UNDEFINED)
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{
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try {
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$this->imagick->resizeImage($size->getWidth(), $size->getHeight(), $this->getFilter($filter), 1);
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} catch (\ImagickException $e) {
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throw new RuntimeException('Resize operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function rotate($angle, ColorInterface $background = null)
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{
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$color = $background ? $background : $this->palette->color('fff');
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try {
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$pixel = $this->getColor($color);
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$this->imagick->rotateimage($pixel, $angle);
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$pixel->clear();
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$pixel->destroy();
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} catch (\ImagickException $e) {
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throw new RuntimeException('Rotate operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function save($path = null, array $options = array())
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{
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$path = null === $path ? $this->imagick->getImageFilename() : $path;
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if (null === $path) {
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throw new RuntimeException('You can omit save path only if image has been open from a file');
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}
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try {
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$this->prepareOutput($options, $path);
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$this->imagick->writeImages($path, true);
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} catch (\ImagickException $e) {
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throw new RuntimeException('Save operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function show($format, array $options = array())
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{
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header('Content-type: '.$this->getMimeType($format));
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echo $this->get($format, $options);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function get($format, array $options = array())
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{
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try {
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$options['format'] = $format;
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$this->prepareOutput($options);
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} catch (\ImagickException $e) {
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throw new RuntimeException('Get operation failed', $e->getCode(), $e);
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}
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return $this->imagick->getImagesBlob();
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}
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/**
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* {@inheritdoc}
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*/
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public function interlace($scheme)
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{
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static $supportedInterlaceSchemes = array(
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ImageInterface::INTERLACE_NONE => \Imagick::INTERLACE_NO,
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ImageInterface::INTERLACE_LINE => \Imagick::INTERLACE_LINE,
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ImageInterface::INTERLACE_PLANE => \Imagick::INTERLACE_PLANE,
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ImageInterface::INTERLACE_PARTITION => \Imagick::INTERLACE_PARTITION,
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);
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if (!array_key_exists($scheme, $supportedInterlaceSchemes)) {
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throw new InvalidArgumentException('Unsupported interlace type');
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}
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$this->imagick->setInterlaceScheme($supportedInterlaceSchemes[$scheme]);
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return $this;
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}
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/**
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* @param array $options
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* @param string $path
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*/
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private function prepareOutput(array $options, $path = null)
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{
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if (isset($options['format'])) {
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$this->imagick->setImageFormat($options['format']);
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}
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if (isset($options['animated']) && true === $options['animated']) {
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$format = isset($options['format']) ? $options['format'] : 'gif';
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$delay = isset($options['animated.delay']) ? $options['animated.delay'] : null;
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$loops = isset($options['animated.loops']) ? $options['animated.loops'] : 0;
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$options['flatten'] = false;
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$this->layers->animate($format, $delay, $loops);
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} else {
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$this->layers->merge();
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}
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$this->applyImageOptions($this->imagick, $options, $path);
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// flatten only if image has multiple layers
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if ((!isset($options['flatten']) || $options['flatten'] === true) && count($this->layers) > 1) {
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$this->flatten();
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function __toString()
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{
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return $this->get('png');
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}
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/**
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* {@inheritdoc}
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*/
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public function draw()
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{
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return new Drawer($this->imagick);
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}
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/**
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* {@inheritdoc}
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*/
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public function effects()
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{
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return new Effects($this->imagick);
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}
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/**
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* {@inheritdoc}
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*/
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public function getSize()
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{
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try {
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$i = $this->imagick->getIteratorIndex();
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$this->imagick->rewind();
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$width = $this->imagick->getImageWidth();
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$height = $this->imagick->getImageHeight();
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$this->imagick->setIteratorIndex($i);
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} catch (\ImagickException $e) {
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throw new RuntimeException('Could not get size', $e->getCode(), $e);
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}
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return new Box($width, $height);
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function applyMask(ImageInterface $mask)
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{
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if (!$mask instanceof self) {
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throw new InvalidArgumentException('Can only apply instances of Imagine\Imagick\Image as masks');
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}
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$size = $this->getSize();
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$maskSize = $mask->getSize();
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if ($size != $maskSize) {
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throw new InvalidArgumentException(sprintf('The given mask doesn\'t match current image\'s size, Current mask\'s dimensions are %s, while image\'s dimensions are %s', $maskSize, $size));
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}
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$mask = $mask->mask();
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$mask->imagick->negateImage(true);
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try {
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// remove transparent areas of the original from the mask
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$mask->imagick->compositeImage($this->imagick, \Imagick::COMPOSITE_DSTIN, 0, 0);
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$this->imagick->compositeImage($mask->imagick, \Imagick::COMPOSITE_COPYOPACITY, 0, 0);
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$mask->imagick->clear();
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$mask->imagick->destroy();
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} catch (\ImagickException $e) {
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throw new RuntimeException('Apply mask operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function mask()
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{
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$mask = $this->copy();
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try {
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$mask->imagick->modulateImage(100, 0, 100);
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$mask->imagick->setImageMatte(false);
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} catch (\ImagickException $e) {
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throw new RuntimeException('Mask operation failed', $e->getCode(), $e);
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}
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return $mask;
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}
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/**
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* {@inheritdoc}
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*
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* @return ImageInterface
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*/
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public function fill(FillInterface $fill)
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{
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try {
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if ($this->isLinearOpaque($fill)) {
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$this->applyFastLinear($fill);
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} else {
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$iterator = $this->imagick->getPixelIterator();
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foreach ($iterator as $y => $pixels) {
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foreach ($pixels as $x => $pixel) {
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$color = $fill->getColor(new Point($x, $y));
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$pixel->setColor((string) $color);
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$pixel->setColorValue(\Imagick::COLOR_ALPHA, $color->getAlpha() / 100);
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}
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$iterator->syncIterator();
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}
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}
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} catch (\ImagickException $e) {
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throw new RuntimeException('Fill operation failed', $e->getCode(), $e);
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}
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function histogram()
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{
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try {
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$pixels = $this->imagick->getImageHistogram();
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} catch (\ImagickException $e) {
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throw new RuntimeException('Error while fetching histogram', $e->getCode(), $e);
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}
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$image = $this;
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return array_map(function (\ImagickPixel $pixel) use ($image) {
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return $image->pixelToColor($pixel);
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},$pixels);
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}
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/**
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* {@inheritdoc}
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*/
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public function getColorAt(PointInterface $point)
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{
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if (!$point->in($this->getSize())) {
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throw new RuntimeException(sprintf('Error getting color at point [%s,%s]. The point must be inside the image of size [%s,%s]', $point->getX(), $point->getY(), $this->getSize()->getWidth(), $this->getSize()->getHeight()));
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}
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try {
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$pixel = $this->imagick->getImagePixelColor($point->getX(), $point->getY());
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} catch (\ImagickException $e) {
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throw new RuntimeException('Error while getting image pixel color', $e->getCode(), $e);
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}
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return $this->pixelToColor($pixel);
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}
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/**
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* Returns a color given a pixel, depending the Palette context
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*
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* Note : this method is public for PHP 5.3 compatibility
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*
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* @param \ImagickPixel $pixel
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*
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* @return ColorInterface
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*
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* @throws InvalidArgumentException In case a unknown color is requested
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*/
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public function pixelToColor(\ImagickPixel $pixel)
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{
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static $colorMapping = array(
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ColorInterface::COLOR_RED => \Imagick::COLOR_RED,
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ColorInterface::COLOR_GREEN => \Imagick::COLOR_GREEN,
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ColorInterface::COLOR_BLUE => \Imagick::COLOR_BLUE,
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ColorInterface::COLOR_CYAN => \Imagick::COLOR_CYAN,
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ColorInterface::COLOR_MAGENTA => \Imagick::COLOR_MAGENTA,
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ColorInterface::COLOR_YELLOW => \Imagick::COLOR_YELLOW,
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ColorInterface::COLOR_KEYLINE => \Imagick::COLOR_BLACK,
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// There is no gray component in \Imagick, let's use one of the RGB comp
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ColorInterface::COLOR_GRAY => \Imagick::COLOR_RED,
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);
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$alpha = $this->palette->supportsAlpha() ? (int) round($pixel->getColorValue(\Imagick::COLOR_ALPHA) * 100) : null;
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$palette = $this->palette();
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return $this->palette->color(array_map(function ($color) use ($palette, $pixel, $colorMapping) {
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if (!isset($colorMapping[$color])) {
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throw new InvalidArgumentException(sprintf('Color %s is not mapped in Imagick', $color));
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}
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$multiplier = 255;
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if ($palette->name() === PaletteInterface::PALETTE_CMYK) {
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$multiplier = 100;
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}
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return $pixel->getColorValue($colorMapping[$color]) * $multiplier;
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}, $this->palette->pixelDefinition()), $alpha);
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}
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|
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/**
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* {@inheritdoc}
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*/
|
|
public function layers()
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{
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return $this->layers;
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}
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|
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/**
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* {@inheritdoc}
|
|
*/
|
|
public function usePalette(PaletteInterface $palette)
|
|
{
|
|
if (!isset(static::$colorspaceMapping[$palette->name()])) {
|
|
throw new InvalidArgumentException(sprintf('The palette %s is not supported by Imagick driver', $palette->name()));
|
|
}
|
|
|
|
if ($this->palette->name() === $palette->name()) {
|
|
return $this;
|
|
}
|
|
|
|
if (!static::$supportsColorspaceConversion) {
|
|
throw new RuntimeException('Your version of Imagick does not support colorspace conversions.');
|
|
}
|
|
|
|
try {
|
|
try {
|
|
$hasICCProfile = (Boolean) $this->imagick->getImageProfile('icc');
|
|
} catch (\ImagickException $e) {
|
|
$hasICCProfile = false;
|
|
}
|
|
|
|
if (!$hasICCProfile) {
|
|
$this->profile($this->palette->profile());
|
|
}
|
|
|
|
$this->profile($palette->profile());
|
|
$this->setColorspace($palette);
|
|
} catch (\ImagickException $e) {
|
|
throw new RuntimeException('Failed to set colorspace', $e->getCode(), $e);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function palette()
|
|
{
|
|
return $this->palette;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function profile(ProfileInterface $profile)
|
|
{
|
|
try {
|
|
$this->imagick->profileImage('icc', $profile->data());
|
|
} catch (\ImagickException $e) {
|
|
throw new RuntimeException(sprintf('Unable to add profile %s to image', $profile->name()), $e->getCode(), $e);
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Internal
|
|
*
|
|
* Flatten the image.
|
|
*/
|
|
private function flatten()
|
|
{
|
|
/**
|
|
* @see https://github.com/mkoppanen/imagick/issues/45
|
|
*/
|
|
try {
|
|
if (method_exists($this->imagick, 'mergeImageLayers') && defined('Imagick::LAYERMETHOD_UNDEFINED')) {
|
|
$this->imagick = $this->imagick->mergeImageLayers(\Imagick::LAYERMETHOD_UNDEFINED);
|
|
} elseif (method_exists($this->imagick, 'flattenImages')) {
|
|
$this->imagick = $this->imagick->flattenImages();
|
|
}
|
|
} catch (\ImagickException $e) {
|
|
throw new RuntimeException('Flatten operation failed', $e->getCode(), $e);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Internal
|
|
*
|
|
* Applies options before save or output
|
|
*
|
|
* @param \Imagick $image
|
|
* @param array $options
|
|
* @param string $path
|
|
*
|
|
* @throws InvalidArgumentException
|
|
* @throws RuntimeException
|
|
*/
|
|
private function applyImageOptions(\Imagick $image, array $options, $path)
|
|
{
|
|
if (isset($options['format'])) {
|
|
$format = $options['format'];
|
|
} elseif ('' !== $extension = pathinfo($path, \PATHINFO_EXTENSION)) {
|
|
$format = $extension;
|
|
} else {
|
|
$format = pathinfo($image->getImageFilename(), \PATHINFO_EXTENSION);
|
|
}
|
|
|
|
$format = strtolower($format);
|
|
|
|
$options = $this->updateSaveOptions($options);
|
|
|
|
if (isset($options['jpeg_quality']) && in_array($format, array('jpeg', 'jpg', 'pjpeg'))) {
|
|
$image->setImageCompressionQuality($options['jpeg_quality']);
|
|
}
|
|
|
|
if ((isset($options['png_compression_level']) || isset($options['png_compression_filter'])) && $format === 'png') {
|
|
// first digit: compression level (default: 7)
|
|
if (isset($options['png_compression_level'])) {
|
|
if ($options['png_compression_level'] < 0 || $options['png_compression_level'] > 9) {
|
|
throw new InvalidArgumentException('png_compression_level option should be an integer from 0 to 9');
|
|
}
|
|
$compression = $options['png_compression_level'] * 10;
|
|
} else {
|
|
$compression = 70;
|
|
}
|
|
|
|
// second digit: compression filter (default: 5)
|
|
if (isset($options['png_compression_filter'])) {
|
|
if ($options['png_compression_filter'] < 0 || $options['png_compression_filter'] > 9) {
|
|
throw new InvalidArgumentException('png_compression_filter option should be an integer from 0 to 9');
|
|
}
|
|
$compression += $options['png_compression_filter'];
|
|
} else {
|
|
$compression += 5;
|
|
}
|
|
|
|
$image->setImageCompressionQuality($compression);
|
|
}
|
|
|
|
if (isset($options['resolution-units']) && isset($options['resolution-x']) && isset($options['resolution-y'])) {
|
|
if ($options['resolution-units'] == ImageInterface::RESOLUTION_PIXELSPERCENTIMETER) {
|
|
$image->setImageUnits(\Imagick::RESOLUTION_PIXELSPERCENTIMETER);
|
|
} elseif ($options['resolution-units'] == ImageInterface::RESOLUTION_PIXELSPERINCH) {
|
|
$image->setImageUnits(\Imagick::RESOLUTION_PIXELSPERINCH);
|
|
} else {
|
|
throw new RuntimeException('Unsupported image unit format');
|
|
}
|
|
|
|
$filter = ImageInterface::FILTER_UNDEFINED;
|
|
if (!empty($options['resampling-filter'])) {
|
|
$filter = $options['resampling-filter'];
|
|
}
|
|
|
|
$image->setImageResolution($options['resolution-x'], $options['resolution-y']);
|
|
$image->resampleImage($options['resolution-x'], $options['resolution-y'], $this->getFilter($filter), 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets specifically formatted color string from Color instance
|
|
*
|
|
* @param ColorInterface $color
|
|
*
|
|
* @return \ImagickPixel
|
|
*/
|
|
private function getColor(ColorInterface $color)
|
|
{
|
|
$pixel = new \ImagickPixel((string) $color);
|
|
$pixel->setColorValue(\Imagick::COLOR_ALPHA, $color->getAlpha() / 100);
|
|
|
|
return $pixel;
|
|
}
|
|
|
|
/**
|
|
* Checks whether given $fill is linear and opaque
|
|
*
|
|
* @param FillInterface $fill
|
|
*
|
|
* @return Boolean
|
|
*/
|
|
private function isLinearOpaque(FillInterface $fill)
|
|
{
|
|
return $fill instanceof Linear && $fill->getStart()->isOpaque() && $fill->getEnd()->isOpaque();
|
|
}
|
|
|
|
/**
|
|
* Performs optimized gradient fill for non-opaque linear gradients
|
|
*
|
|
* @param Linear $fill
|
|
*/
|
|
private function applyFastLinear(Linear $fill)
|
|
{
|
|
$gradient = new \Imagick();
|
|
$size = $this->getSize();
|
|
$color = sprintf('gradient:%s-%s', (string) $fill->getStart(), (string) $fill->getEnd());
|
|
|
|
if ($fill instanceof Horizontal) {
|
|
$gradient->newPseudoImage($size->getHeight(), $size->getWidth(), $color);
|
|
$gradient->rotateImage(new \ImagickPixel(), 90);
|
|
} else {
|
|
$gradient->newPseudoImage($size->getWidth(), $size->getHeight(), $color);
|
|
}
|
|
|
|
$this->imagick->compositeImage($gradient, \Imagick::COMPOSITE_OVER, 0, 0);
|
|
$gradient->clear();
|
|
$gradient->destroy();
|
|
}
|
|
|
|
/**
|
|
* Internal
|
|
*
|
|
* Get the mime type based on format.
|
|
*
|
|
* @param string $format
|
|
*
|
|
* @return string mime-type
|
|
*
|
|
* @throws RuntimeException
|
|
*/
|
|
private function getMimeType($format)
|
|
{
|
|
static $mimeTypes = array(
|
|
'jpeg' => 'image/jpeg',
|
|
'jpg' => 'image/jpeg',
|
|
'gif' => 'image/gif',
|
|
'png' => 'image/png',
|
|
'wbmp' => 'image/vnd.wap.wbmp',
|
|
'xbm' => 'image/xbm',
|
|
);
|
|
|
|
if (!isset($mimeTypes[$format])) {
|
|
throw new RuntimeException(sprintf('Unsupported format given. Only %s are supported, %s given', implode(", ", array_keys($mimeTypes)), $format));
|
|
}
|
|
|
|
return $mimeTypes[$format];
|
|
}
|
|
|
|
/**
|
|
* Sets colorspace and image type, assigns the palette.
|
|
*
|
|
* @param PaletteInterface $palette
|
|
*
|
|
* @throws InvalidArgumentException
|
|
*/
|
|
private function setColorspace(PaletteInterface $palette)
|
|
{
|
|
static $typeMapping = array(
|
|
// We use Matte variants to preserve alpha
|
|
PaletteInterface::PALETTE_CMYK => \Imagick::IMGTYPE_TRUECOLORMATTE,
|
|
PaletteInterface::PALETTE_RGB => \Imagick::IMGTYPE_TRUECOLORMATTE,
|
|
PaletteInterface::PALETTE_GRAYSCALE => \Imagick::IMGTYPE_GRAYSCALEMATTE,
|
|
);
|
|
|
|
if (!isset(static::$colorspaceMapping[$palette->name()])) {
|
|
throw new InvalidArgumentException(sprintf('The palette %s is not supported by Imagick driver', $palette->name()));
|
|
}
|
|
|
|
$this->imagick->setType($typeMapping[$palette->name()]);
|
|
$this->imagick->setColorspace(static::$colorspaceMapping[$palette->name()]);
|
|
$this->palette = $palette;
|
|
}
|
|
|
|
/**
|
|
* Older imagemagick versions does not support colorspace conversions.
|
|
* Let's detect if it is supported.
|
|
*
|
|
* @return Boolean
|
|
*/
|
|
private function detectColorspaceConversionSupport()
|
|
{
|
|
if (null !== static::$supportsColorspaceConversion) {
|
|
return static::$supportsColorspaceConversion;
|
|
}
|
|
|
|
return static::$supportsColorspaceConversion = method_exists('Imagick', 'setColorspace');
|
|
}
|
|
|
|
/**
|
|
* Returns the filter if it's supported.
|
|
*
|
|
* @param string $filter
|
|
*
|
|
* @return string
|
|
*
|
|
* @throws InvalidArgumentException If the filter is unsupported.
|
|
*/
|
|
private function getFilter($filter = ImageInterface::FILTER_UNDEFINED)
|
|
{
|
|
static $supportedFilters = array(
|
|
ImageInterface::FILTER_UNDEFINED => \Imagick::FILTER_UNDEFINED,
|
|
ImageInterface::FILTER_BESSEL => \Imagick::FILTER_BESSEL,
|
|
ImageInterface::FILTER_BLACKMAN => \Imagick::FILTER_BLACKMAN,
|
|
ImageInterface::FILTER_BOX => \Imagick::FILTER_BOX,
|
|
ImageInterface::FILTER_CATROM => \Imagick::FILTER_CATROM,
|
|
ImageInterface::FILTER_CUBIC => \Imagick::FILTER_CUBIC,
|
|
ImageInterface::FILTER_GAUSSIAN => \Imagick::FILTER_GAUSSIAN,
|
|
ImageInterface::FILTER_HANNING => \Imagick::FILTER_HANNING,
|
|
ImageInterface::FILTER_HAMMING => \Imagick::FILTER_HAMMING,
|
|
ImageInterface::FILTER_HERMITE => \Imagick::FILTER_HERMITE,
|
|
ImageInterface::FILTER_LANCZOS => \Imagick::FILTER_LANCZOS,
|
|
ImageInterface::FILTER_MITCHELL => \Imagick::FILTER_MITCHELL,
|
|
ImageInterface::FILTER_POINT => \Imagick::FILTER_POINT,
|
|
ImageInterface::FILTER_QUADRATIC => \Imagick::FILTER_QUADRATIC,
|
|
ImageInterface::FILTER_SINC => \Imagick::FILTER_SINC,
|
|
ImageInterface::FILTER_TRIANGLE => \Imagick::FILTER_TRIANGLE
|
|
);
|
|
|
|
if (!array_key_exists($filter, $supportedFilters)) {
|
|
throw new InvalidArgumentException(sprintf(
|
|
'The resampling filter "%s" is not supported by Imagick driver.',
|
|
$filter
|
|
));
|
|
}
|
|
|
|
return $supportedFilters[$filter];
|
|
}
|
|
}
|