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<?php
/**
* @file
* @ingroup Media
*/
/**
* Handler for Microsoft's bitmap format; getimagesize() doesn't
* support these files
*
* @ingroup Media
*/
class BmpHandler extends BitmapHandler {
// We never want to use .bmp in an <img/> tag
function mustRender( $file ) {
return true;
}
// Render files as PNG
function getThumbType( $text, $mime ) {
return array( 'png', 'image/png' );
}
/*
* Get width and height from the bmp header.
*/
function getImageSize( $image, $filename ) {
$f = fopen( $filename, 'r' );
if(!$f) return false;
$header = fread( $f, 54 );
fclose($f);
// Extract binary form of width and height from the header
$w = substr( $header, 18, 4);
$h = substr( $header, 22, 4);
// Convert the unsigned long 32 bits (little endian):
$w = unpack( 'V' , $w );
$h = unpack( 'V' , $h );
return array( $w[1], $h[1] );
}
}
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