118 lines
3.0 KiB
PHP
Executable File
118 lines
3.0 KiB
PHP
Executable File
#!/usr/bin/env php
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<?php
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function fatal(string $message) {
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fprintf(STDERR, $message);
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exit(1);
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}
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function parse_roi_input(string $file): array {
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if (!file_exists($file))
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throw new Error("file $file does not exists");
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$lines = file($file);
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$lines = array_map('trim', $lines);
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$lines = array_filter($lines, fn($line) => $line != '' && $line[0] != '#');
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$lines = array_map(fn($line) => array_map('intval', explode(' ', $line)), $lines);
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foreach ($lines as $points) {
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if (count($points) != 4)
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throw new Exception(__METHOD__.": invalid line: ".implode(' ', $points));
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}
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return $lines;
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}
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function hex2rgb(int $color): array {
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$r = ($color >> 16) & 0xff;
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$g = ($color >> 8) & 0xff;
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$b = $color & 0xff;
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return [$r, $g, $b];
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}
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function imageopen(string $filename) {
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$size = getimagesize($filename);
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$types = [
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2 => 'jpeg',
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3 => 'png'
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];
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if (!$size || !isset($types[$size[2]]))
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return false;
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$f = 'imagecreatefrom'.$types[$size[2]];
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return call_user_func($f, $filename);
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}
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error_reporting(E_ALL);
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ini_set('display_errors', 1);
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$colors = [
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0xff0000,
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0x00ff00,
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0x0000ff,
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0xffff00,
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0xff00ff,
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0x00ffff,
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];
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if ($argc < 2)
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fatal("usage: {$argv[0]} --roi FILE --input PATH --output PATH\n");
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try {
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array_shift($argv);
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while (count($argv) > 0) {
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switch ($argv[0]) {
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case '--roi':
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array_shift($argv);
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$roi_file = array_shift($argv);
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break;
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case '--input':
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array_shift($argv);
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$input = array_shift($argv);
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break;
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case '--output':
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array_shift($argv);
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$output = array_shift($argv);
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break;
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default:
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throw new Exception("unsupported argument: {$argv[0]}");
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}
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}
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if (!$roi_file)
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throw new Exception("--roi is not specified");
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if (!$input)
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throw new Exception('--input is not specified');
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if (!$output)
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throw new Exception('--output is not specified');
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$regions = parse_roi_input($roi_file);
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$img = imageopen($input);
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if (!$img)
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throw new Exception("failed to open image");
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$imgw = imagesx($img);
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$imgh = imagesy($img);
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foreach ($regions as $i => $region) {
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list($r, $g, $b) = hex2rgb($colors[$i]);
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if ($region[0]+$region[2] > $imgw || $region[1]+$region[3] > $imgh)
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throw new Exception('error: invalid region (line '.($i+1).')');
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$col = imagecolorallocatealpha($img, $r, $g, $b, 50);
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imagerectangle($img, $region[0], $region[1], $region[0]+$region[2], $region[1]+$region[3], $col);
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$col = imagecolorallocatealpha($img, $r, $g, $b, 90);
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imagefilledrectangle($img, $region[0]+1, $region[1]+1, $region[0]+$region[2]-2, $region[1]+$region[3]-2, $col);
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}
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imagejpeg($img, $output, 97);
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echo "saved to $output\n";
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} catch (Exception $e) {
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fatal($e->getMessage()."\n");
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} |