/**
* @param resource $resource
* @param resource $controlResource
* @return resource
*/
public function getOptimizedGdResource($resource, $controlResource)
{
if (imageistruecolor($resource)) {
$resource = $this->rh->getPalettizedGdResource($resource);
}
$totalColors = imagecolorstotal($resource);
$trans = imagecolortransparent($resource);
$reds = new \SplFixedArray($totalColors);
$greens = new \SplFixedArray($totalColors);
$blues = new \SplFixedArray($totalColors);
$i = 0;
do {
$colors = imagecolorsforindex($resource, $i);
$reds[$i] = $colors['red'];
$greens[$i] = $colors['green'];
$blues[$i] = $colors['blue'];
} while (++$i < $totalColors);
if (imageistruecolor($controlResource)) {
$controlResource = $this->rh->getPalettizedGdResource($controlResource);
}
$controlTotalColors = imagecolorstotal($controlResource);
$controlTrans = imagecolortransparent($controlResource);
$controlReds = new \SplFixedArray($controlTotalColors);
$controlGreens = new \SplFixedArray($controlTotalColors);
$controlBlues = new \SplFixedArray($controlTotalColors);
$i = 0;
do {
$colors = imagecolorsforindex($controlResource, $i);
$controlReds[$i] = $colors['red'];
$controlGreens[$i] = $colors['green'];
$controlBlues[$i] = $colors['blue'];
} while (++$i < $controlTotalColors);
$width = imagesx($resource);
$height = imagesy($resource);
$y = 0;
do {
$x = 0;
do {
$index = imagecolorat($resource, $x, $y);
$red = $reds[$index];
$green = $greens[$index];
$blue = $blues[$index];
$controlIndex = imagecolorat($controlResource, $x, $y);
$controlRed = $controlReds[$controlIndex];
$controlGreen = $controlGreens[$controlIndex];
$controlBlue = $controlBlues[$controlIndex];
if (($red & 0b11111100) === ($controlRed & 0b11111100) && ($green & 0b11111100) === ($controlGreen & 0b11111100) && ($blue & 0b11111100) === ($controlBlue & 0b11111100)) {
imagesetpixel($resource, $x, $y, $trans);
}
} while (++$x !== $width);
} while (++$y !== $height);
return $resource;
}
/**
* @param LayerInterface[] $layers
*/
protected function initCacheResource(array $layers)
{
if (1 == count($layers)) {
return;
}
foreach ($layers as $layer) {
if ($layer instanceof BackgroundLayerInterface) {
$width = $layer->get('final.width');
$height = $layer->get('final.height');
$resource = $this->rh->getEmptyGdResource($width, $height);
$layer->set('gif.cache_resource', $resource);
$backgroundLayer = $layer;
continue;
}
if ($layer instanceof ImageAwareLayerInterface) {
$this->initImageAwareLayerResource($layer);
} elseif ($layer instanceof TextLayerInterface) {
$this->initTextLayerResource($layer);
}
$resource = $this->rh->getMergedGdResource($backgroundLayer->get('gif.cache_resource'), $layer->get('final.resource'), $layer->get('regular.move.x'), $layer->get('regular.move.y'), $layer->get('regular.move.gravity'));
if (!$backgroundLayer->get('gif.quality') && imageistruecolor($resource)) {
$resource = $this->rh->getPalettizedGdResource($resource);
}
imagedestroy($layer->get('final.resource'));
$backgroundLayer->set('gif.cache_resource', $resource);
}
}
