61 lines
1.1 KiB
PHP
61 lines
1.1 KiB
PHP
<?php
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/**
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* Handler for Microsoft's bitmap format
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*
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* @file
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* @ingroup Media
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*/
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/**
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* Handler for Microsoft's bitmap format; getimagesize() doesn't
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* support these files
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*
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* @ingroup Media
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*/
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class BmpHandler extends BitmapHandler {
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/**
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* @param $file
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* @return bool
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*/
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function mustRender( $file ) {
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return true;
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}
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/**
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* Render files as PNG
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*
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* @param $text
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* @param $mime
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* @param $params
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* @return array
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*/
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function getThumbType( $text, $mime, $params = null ) {
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return array( 'png', 'image/png' );
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}
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/**
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* Get width and height from the bmp header.
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*
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* @param $image
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* @param $filename
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* @return array
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*/
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function getImageSize( $image, $filename ) {
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$f = fopen( $filename, 'r' );
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if( !$f ) {
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return false;
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}
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$header = fread( $f, 54 );
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fclose($f);
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// Extract binary form of width and height from the header
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$w = substr( $header, 18, 4);
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$h = substr( $header, 22, 4);
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// Convert the unsigned long 32 bits (little endian):
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$w = unpack( 'V' , $w );
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$h = unpack( 'V' , $h );
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return array( $w[1], $h[1] );
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}
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}
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