php-qrcode/tests/Performance/qrdata.php

<?php
/**
 * Tests the QRMatrix write performance
 *
 * @created      16.10.2023
 * @author       smiley <smiley@chillerlan.net>
 * @copyright    2023 smiley
 * @license      MIT
 */

namespace chillerlan\QRCodeTest\Performance;

use chillerlan\QRCode\Common\{EccLevel, Mode, Version};
use chillerlan\QRCode\Data\QRData;
use chillerlan\QRCode\QROptions;
use chillerlan\QRCodeTest\QRMaxLengthTrait;
use Generator;
use function file_put_contents;
use function json_encode;
use function printf;
use function sprintf;
use function str_repeat;
use function str_replace;
use const JSON_PRETTY_PRINT;

require_once __DIR__.'/../../vendor/autoload.php';

// excerpt from QRCodeReaderTestAbstract
$generator = new class () {
	use QRMaxLengthTrait;

	public function dataProvider():Generator{

		$dataModeData = [
			Mode::NUMBER   => str_repeat('0123456789', 750),
			Mode::ALPHANUM => str_repeat('ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 $%*+-./:', 100),
			Mode::KANJI    => str_repeat('漂う花の香り', 350),
			Mode::HANZI    => str_repeat('无可奈何燃花作香', 250),
			Mode::BYTE     => str_repeat('https://www.youtube.com/watch?v=dQw4w9WgXcQ ', 100),
		];

		foreach(Mode::INTERFACES as $dataMode => $dataModeInterface){
			$dataModeName = str_replace('chillerlan\\QRCode\\Data\\', '', $dataModeInterface);

			for($v = 1; $v <= 40; $v++){
				$version = new Version($v);

				foreach([EccLevel::L, EccLevel::M, EccLevel::Q, EccLevel::H] as $ecc){
					$eccLevel = new EccLevel($ecc);

					yield sprintf('version %2s%s (%s)', $version, $eccLevel, $dataModeName) => [
						$version->getVersionNumber(),
						$eccLevel,
						$dataModeInterface,
						$dataModeName,
						mb_substr($dataModeData[$dataMode], 0, self::getMaxLengthForMode($dataMode, $version, $eccLevel)),
					];
				}
			}
		}

	}

};

$test = new PerformanceTest(100);
$json = [];

foreach($generator->dataProvider() as $key => [$version, $eccLevel, $dataModeInterface, $dataModeName, $data]){
	// invovcation tests the performance of QRData::writeBitBuffer()
	$test->run(fn() => new QRData(new QROptions(['version' => $version, 'eccLevel' => $eccLevel->getLevel()]), [new $dataModeInterface($data)]));

	printf('%s encode: % 6.3fms', $key, $test->getResult());
	$json[$dataModeName][(string)$eccLevel]['encode'][$version] = $test->getResult();

	// writeMatrix includes QRMatrix::writeCodewords() and the ReedSolomonEncoder
	$qrdata = new QRData(new QROptions(['version' => $version, 'eccLevel' => $eccLevel->getLevel()]), [new $dataModeInterface($data)]);
	$test->run(fn() => $qrdata->writeMatrix());

	printf(', write matrix: % 6.3fms', $test->getResult());
	$json[$dataModeName][(string)$eccLevel]['write'][$version] = $test->getResult();

	$bitBuffer = $qrdata->getBitBuffer();
	$bitBuffer->read(4); // read data mode indicator

	$test->run(fn() => $dataModeInterface::decodeSegment(clone $bitBuffer, $version));

	printf(", decode: % 6.3fms\n", $test->getResult());
	$json[$dataModeName][(string)$eccLevel]['decode'][$version] = $test->getResult();
}

file_put_contents(__DIR__.'/performance_qrdata.json', json_encode($json, JSON_PRETTY_PRINT));