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Merge pull request #12336 from annando/imagick-blurhash

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Support blurhash for Imagick
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Hypolite Petovan 2022-12-05 08:12:56 -05:00 committed by GitHub
commit 38fa76d6b5
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 32 additions and 20 deletions
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52
src/Object/Image.php
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@ -25,6 +25,7 @@ use Exception;
use Friendica\DI;
use Friendica\Util\Images;
use Imagick;
use ImagickDraw;
use ImagickPixel;
use GDImage;
use kornrunner\Blurhash\Blurhash;
@ -64,7 +65,7 @@ class Image
}
$this->type = $type;
if ($this->isImagick() && $this->loadData($data)) {
if ($this->isImagick() && (empty($data) || $this->loadData($data))) {
return;
} else {
// Failed to load with Imagick, fallback
@ -732,11 +733,6 @@ class Image
*/
public function getBlurHash(): string
{
if ($this->isImagick()) {
// Imagick is not supported
return '';
}
$width = $this->getWidth();
$height = $this->getHeight();
@ -750,10 +746,14 @@ class Image
for ($y = 0; $y < $height; ++$y) {
$row = [];
for ($x = 0; $x < $width; ++$x) {
$index = imagecolorat($this->image, $x, $y);
$colors = @imagecolorsforindex($this->image, $index);
$row[] = [$colors['red'], $colors['green'], $colors['blue']];
if ($this->isImagick()) {
$colors = $this->image->getImagePixelColor($x, $y)->getColor();
$row[] = [$colors['r'], $colors['g'], $colors['b']];
} else {
$index = imagecolorat($this->image, $x, $y);
$colors = @imagecolorsforindex($this->image, $index);
$row[] = [$colors['red'], $colors['green'], $colors['blue']];
}
}
$pixels[] = $row;
}
@ -775,25 +775,37 @@ class Image
*/
public function getFromBlurHash(string $blurhash, int $width, int $height)
{
if ($this->isImagick()) {
// Imagick is not supported
return;
}
$scaled = Images::getScalingDimensions($width, $height, 90);
$pixels = Blurhash::decode($blurhash, $scaled['width'], $scaled['height']);
$this->image = imagecreatetruecolor($scaled['width'], $scaled['height']);
if ($this->isImagick()) {
$this->image = new Imagick();
$draw = new ImagickDraw();
$this->image->newImage($scaled['width'], $scaled['height'], '', 'png');
} else {
$this->image = imagecreatetruecolor($scaled['width'], $scaled['height']);
}
for ($y = 0; $y < $scaled['height']; ++$y) {
for ($x = 0; $x < $scaled['width']; ++$x) {
[$r, $g, $b] = $pixels[$y][$x];
imagesetpixel($this->image, $x, $y, imagecolorallocate($this->image, $r, $g, $b));
if ($this->isImagick()) {
$draw->setFillColor("rgb($r, $g, $b)");
$draw->point($x, $y);
} else {
imagesetpixel($this->image, $x, $y, imagecolorallocate($this->image, $r, $g, $b));
}
}
}
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
$this->valid = true;
if ($this->isImagick()) {
$this->image->drawImage($draw);
} else {
$this->width = imagesx($this->image);
$this->height = imagesy($this->image);
}
$this->valid = true;
$this->scaleUp(min($width, $height));
}