115 lines
4.6 KiB
PHP
115 lines
4.6 KiB
PHP
<?php
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/*************************************************************
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# 076 License
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Copyright (c) テクニカル諏訪子
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Permission is hereby granted to any person obtaining a copy of the software
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Little Beast (the "Software") to use, modify, merge, copy, publish, distribute,
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sublicense, and/or sell copies of the Software, subject to the following conditions:
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1. **Origin Attribution**:
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- You must not misrepresent the origin of the Software; you must not claim
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you created the original Software.
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- If the Software is used in a product, you must either:
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a. Provide clear attribution in the product's documentation, user interface,
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or other visible areas, **OR**
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b. Pay the original developers a fee they specify in writing.
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2. **Usage Restriction**:
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- The Software, or any derivative works, dependencies, or libraries
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incorporating it, must not be used for censorship or to suppress freedom of
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speech, expression, or creativity. Prohibited uses include, but are not
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limited to:
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- Censorship of so-called "hate speech", visuals, non-mainstream opinions,
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ideas, or objective reality.
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- Tools or systems designed to restrict access to information or
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artistic works.
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3. **Notice Preservation**:
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- This license and the above copyright notice must remain intact in all copies
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of the source code.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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namespace Std\Lib;
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use Std\Lib\Image\ImageInterface;
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use Std\Lib\Image\Gif;
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use Std\Lib\Image\Jpeg;
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use Std\Lib\Image\Png;
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use Std\Lib\Image\Targa;
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class RGB {
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public int $r;
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public int $g;
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public int $b;
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public array $rgb;
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public function __construct(int $r, int $g, int $b) {
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$this->r = $r;
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$this->g = $g;
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$this->b = $b;
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$this->rgb = ['r' => $r, 'g' => $g, 'b' => $b];
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}
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}
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class Image {
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public string $filename = 'UNKNOWN';
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public string $extension = 'UNKNOWN';
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public string $type = 'UNSUPPORTED';
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public string $size = '0 B';
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public int $bytes = 0;
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public \stdClass $fullInfo;
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private array $supported = [
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'image/gif' => Gif::class,
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'image/jpeg' => Jpeg::class,
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'image/png' => Png::class,
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'image/x-tga' => Targa::class,
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];
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public function __construct(string $file) {
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$file = ROOT.$file;
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// $file = ROOT.'/public/static/article/mock-screenshot.tga';
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if (!file_exists($file)) return;
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$fp = fopen($file, 'rb');
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if (!$fp) return;
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$extBytes = fread($fp, 15);
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fclose($fp);
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$this->bytes = filesize($file);
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$this->size = $this->formatBytes($this->bytes);
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$this->extension = pathinfo($file, PATHINFO_EXTENSION);
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$this->filename = str_replace('.'.$this->extension, '', array_last(explode('/', $file)));
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if (substr($extBytes, 0, 3) === "\xff\xd8\xff") $this->type = 'image/jpeg';
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else if (substr($extBytes, 0, 15) === "\x52\x49\x46\x46\x1a\x28\x00\x00\x57\x45\x42\x50\x56\x50\x38") $this->type = 'image/webp';
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else if (substr($extBytes, 0, 3) === "\x42\x4d\x36") $this->type = 'image/bmp';
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else if (substr($extBytes, 0, 6) === "\x89\x50\x4e\x47\x0d\x0a") $this->type = 'image/png';
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else if (substr($extBytes, 0, 6) === "\x47\x49\x46\x38\x37\x61" || substr($extBytes, 0, 6) === "\x47\x49\x46\x38\x39\x61") $this->type = 'image/gif';
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else if (str_ends_with($file, '.tga')) $this->type = 'image/x-tga';
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$this->fullInfo = $this->createHandler($this->type)->parse($file);
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$this->fullInfo->type = $this->type;
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$this->fullInfo->size = $this->size;
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$this->fullInfo->bytes = $this->bytes;
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}
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///////////////
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private function createHandler(string $ext): ImageInterface {
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$class = $this->supported[$ext] ?? null;
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if (!$class) throw new \RuntimeException("形式のハンドルが存在しない： {$ext}");
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return new $class();
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}
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private function formatBytes(int $size, int $precision = 2): string {
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$units = ['B', 'KiB', 'MiB', 'GiB', 'TiB'];
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for ($i = 0; $size > 1024 && $i < count($units) - 1; ++$i) $size /= 1024;
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return round($size, $precision).' '.$units[$i];
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}
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} |