public function testDecodeEncoded()
{
// create two resource
$res1 = imagecreatetruecolor(20, 15);
imagefill($res1, 0, 0, 850736919);
$res2 = imagecreatetruecolor(20, 15);
imagefill($res1, 0, 0, 11876119);
// create encoded
$encoder = new Encoder();
$encoder->setCanvas(20, 15);
$encoder->setLoops(2);
$encoder->createFrameFromGdResource($res1, 100);
$encoder->createFrameFromGdResource($res2, 100);
$encoded = $encoder->encode();
// decode encoded
$decoder = new Decoder();
$decoder->initFromData($encoded);
$decoded = $decoder->decode();
// check after decoding
$this->assertEquals(20, $decoded->getCanvasWidth());
$this->assertEquals(15, $decoded->getCanvasHeight());
$this->assertEquals(2, $decoded->countFrames());
$this->assertEquals(2, $decoded->getLoops());
$this->assertEquals(32, $decoded->countGlobalColors());
$this->assertFalse($decoded->hasGlobalColorTable());
foreach ($decoded->getFrames() as $frame) {
$this->assertEquals(100, $frame->getDelay());
}
}
/**
* Processes and returns encoded image as GIF string
*
* @return string
*/
protected function processGif()
{
$image = $this->image;
$encoder = new GifEncoder();
$encoder->setCanvas($image->getWidth(), $image->getHeight());
$encoder->setLoops($image->getContainer()->getLoops());
// set frames
foreach ($image as $frame) {
// extract each frame
ob_start();
imagegif($frame->getCore());
$frame_data = ob_get_contents();
ob_end_clean();
// decode frame
$decoder = new GifDecoder();
$decoder->initFromData($frame_data);
$decoded = $decoder->decode();
// add each frame
$encoder->addFrame($decoded->getFrame()->setLocalColorTable($decoded->getGlobalColorTable())->setDelay($frame->delay));
}
return $encoder->encode();
}
public static function initFromDecoded(Decoded $decoded)
{
$container = new self();
$container->setLoops($decoded->getLoops());
// create empty canvas
$driver = new Driver();
$canvas = $driver->newImage($decoded->getCanvasWidth(), $decoded->getCanvasHeight())->getCore();
foreach ($decoded->getFrames() as $key => $frame) {
// create resource from frame
$encoder = new GifEncoder();
$encoder->setFromDecoded($decoded, $key);
$frame_resource = imagecreatefromstring($encoder->encode());
// insert frame image data into canvas
imagecopy($canvas, $frame_resource, $frame->getOffset()->left, $frame->getOffset()->top, 0, 0, $frame->getSize()->width, $frame->getSize()->height);
// destory frame resource
imagedestroy($frame_resource);
// add frame to container
$container->addFrame(new \Intervention\Image\Frame($canvas, $frame->getDelay()));
// prepare next canvas
$canvas = Helper::cloneResource($canvas);
}
return $container;
}
public function testDoesLoop()
{
$encoder = new Encoder();
$this->assertFalse($encoder->doesLoop());
$encoder->setLoops(10);
$this->assertTrue($encoder->doesLoop());
}
