<?php
+/**
+ * @file
+ * @ingroup Media
+ */
/**
- * @addtogroup Media
+ * @ingroup Media
*/
class BitmapHandler extends ImageHandler {
function normaliseParams( $image, &$params ) {
# Don't make an image bigger than the source
$params['physicalWidth'] = $params['width'];
$params['physicalHeight'] = $params['height'];
-
+
if ( $params['physicalWidth'] >= $srcWidth ) {
$params['physicalWidth'] = $srcWidth;
$params['physicalHeight'] = $srcHeight;
return true;
}
-
+
function doTransform( $image, $dstPath, $dstUrl, $params, $flags = 0 ) {
- global $wgUseImageMagick, $wgImageMagickConvertCommand;
- global $wgCustomConvertCommand;
+ global $wgUseImageMagick, $wgImageMagickConvertCommand, $wgImageMagickTempDir;
+ global $wgCustomConvertCommand, $wgUseImageResize;
global $wgSharpenParameter, $wgSharpenReductionThreshold;
+ global $wgMaxAnimatedGifArea;
if ( !$this->normaliseParams( $image, $params ) ) {
return new TransformParameterError( $params );
$srcWidth = $image->getWidth();
$srcHeight = $image->getHeight();
$mimeType = $image->getMimeType();
- $srcPath = $image->getImagePath();
+ $srcPath = $image->getPath();
$retval = 0;
wfDebug( __METHOD__.": creating {$physicalWidth}x{$physicalHeight} thumbnail at $dstPath\n" );
- if ( $physicalWidth == $srcWidth && $physicalHeight == $srcHeight ) {
+ if ( !$image->mustRender() && $physicalWidth == $srcWidth && $physicalHeight == $srcHeight ) {
# normaliseParams (or the user) wants us to return the unscaled image
wfDebug( __METHOD__.": returning unscaled image\n" );
- return new ThumbnailImage( $image->getURL(), $clientWidth, $clientHeight, $srcPath );
+ return new ThumbnailImage( $image, $image->getURL(), $clientWidth, $clientHeight, $srcPath );
}
- if ( $wgUseImageMagick ) {
+ if ( !$dstPath ) {
+ // No output path available, client side scaling only
+ $scaler = 'client';
+ } elseif( !$wgUseImageResize ) {
+ $scaler = 'client';
+ } elseif ( $wgUseImageMagick ) {
$scaler = 'im';
} elseif ( $wgCustomConvertCommand ) {
$scaler = 'custom';
} else {
$scaler = 'client';
}
+ wfDebug( __METHOD__.": scaler $scaler\n" );
if ( $scaler == 'client' ) {
# Client-side image scaling, use the source URL
# Using the destination URL in a TRANSFORM_LATER request would be incorrect
- return new ThumbnailImage( $image->getURL(), $clientWidth, $clientHeight, $srcPath );
+ return new ThumbnailImage( $image, $image->getURL(), $clientWidth, $clientHeight, $srcPath );
}
if ( $flags & self::TRANSFORM_LATER ) {
- return new ThumbnailImage( $dstUrl, $clientWidth, $clientHeight, $dstPath );
+ wfDebug( __METHOD__.": Transforming later per flags.\n" );
+ return new ThumbnailImage( $image, $dstUrl, $clientWidth, $clientHeight, $dstPath );
}
if ( !wfMkdirParents( dirname( $dstPath ) ) ) {
- return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight,
- wfMsg( 'thumbnail_dest_directory' ) );
+ wfDebug( __METHOD__.": Unable to create thumbnail destination directory, falling back to client scaling\n" );
+ return new ThumbnailImage( $image, $image->getURL(), $clientWidth, $clientHeight, $srcPath );
}
if ( $scaler == 'im' ) {
# use ImageMagick
+ $quality = '';
$sharpen = '';
+ $frame = '';
+ $animation = '';
if ( $mimeType == 'image/jpeg' ) {
$quality = "-quality 80"; // 80%
# Sharpening, see bug 6193
}
} elseif ( $mimeType == 'image/png' ) {
$quality = "-quality 95"; // zlib 9, adaptive filtering
+ } elseif( $mimeType == 'image/gif' ) {
+ if( $srcWidth * $srcHeight > $wgMaxAnimatedGifArea ) {
+ // Extract initial frame only; we're so big it'll
+ // be a total drag. :P
+ $frame = '[0]';
+ } else {
+ // Coalesce is needed to scale animated GIFs properly (bug 1017).
+ $animation = ' -coalesce ';
+ }
+ }
+
+ if ( strval( $wgImageMagickTempDir ) !== '' ) {
+ $tempEnv = 'MAGICK_TMPDIR=' . wfEscapeShellArg( $wgImageMagickTempDir ) . ' ';
} else {
- $quality = ''; // default
+ $tempEnv = '';
}
# Specify white background color, will be used for transparent images
# It seems that ImageMagick has a bug wherein it produces thumbnails of
# the wrong size in the second case.
- $cmd = wfEscapeShellArg($wgImageMagickConvertCommand) .
+ $cmd =
+ $tempEnv .
+ wfEscapeShellArg($wgImageMagickConvertCommand) .
" {$quality} -background white -size {$physicalWidth} ".
- wfEscapeShellArg($srcPath) .
- // Coalesce is needed to scale animated GIFs properly (bug 1017).
- ' -coalesce ' .
+ wfEscapeShellArg($srcPath . $frame) .
+ $animation .
// For the -resize option a "!" is needed to force exact size,
// or ImageMagick may decide your ratio is wrong and slice off
// a pixel.
if( !isset( $typemap[$mimeType] ) ) {
$err = 'Image type not supported';
wfDebug( "$err\n" );
- return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight, $err );
+ $errMsg = wfMsg ( 'thumbnail_image-type' );
+ return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight, $errMsg );
}
list( $loader, $colorStyle, $saveType ) = $typemap[$mimeType];
if( !function_exists( $loader ) ) {
$err = "Incomplete GD library configuration: missing function $loader";
wfDebug( "$err\n" );
- return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight, $err );
+ $errMsg = wfMsg ( 'thumbnail_gd-library', $loader );
+ return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight, $errMsg );
+ }
+
+ if ( !file_exists( $srcPath ) ) {
+ $err = "File seems to be missing: $srcPath";
+ wfDebug( "$err\n" );
+ $errMsg = wfMsg ( 'thumbnail_image-missing', $srcPath );
+ return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight, $errMsg );
}
$src_image = call_user_func( $loader, $srcPath );
$dst_image = imagecreatetruecolor( $physicalWidth, $physicalHeight );
- imagecopyresampled( $dst_image, $src_image,
- 0,0,0,0,
- $physicalWidth, $physicalHeight, imagesx( $src_image ), imagesy( $src_image ) );
+
+ // Initialise the destination image to transparent instead of
+ // the default solid black, to support PNG and GIF transparency nicely
+ $background = imagecolorallocate( $dst_image, 0, 0, 0 );
+ imagecolortransparent( $dst_image, $background );
+ imagealphablending( $dst_image, false );
+
+ if( $colorStyle == 'palette' ) {
+ // Don't resample for paletted GIF images.
+ // It may just uglify them, and completely breaks transparency.
+ imagecopyresized( $dst_image, $src_image,
+ 0,0,0,0,
+ $physicalWidth, $physicalHeight, imagesx( $src_image ), imagesy( $src_image ) );
+ } else {
+ imagecopyresampled( $dst_image, $src_image,
+ 0,0,0,0,
+ $physicalWidth, $physicalHeight, imagesx( $src_image ), imagesy( $src_image ) );
+ }
+
+ imagesavealpha( $dst_image, true );
+
call_user_func( $saveType, $dst_image, $dstPath );
imagedestroy( $dst_image );
imagedestroy( $src_image );
wfHostname(), $retval, trim($err), $cmd ) );
return new MediaTransformError( 'thumbnail_error', $clientWidth, $clientHeight, $err );
} else {
- return new ThumbnailImage( $dstUrl, $clientWidth, $clientHeight, $dstPath );
+ return new ThumbnailImage( $image, $dstUrl, $clientWidth, $clientHeight, $dstPath );
}
}
$exif['MEDIAWIKI_EXIF_VERSION'] != Exif::version() )
{
# Wrong version
+ wfDebug( __METHOD__.": wrong version\n" );
return false;
}
return true;
}
-}
+ /**
+ * Get a list of EXIF metadata items which should be displayed when
+ * the metadata table is collapsed.
+ *
+ * @return array of strings
+ * @access private
+ */
+ function visibleMetadataFields() {
+ $fields = array();
+ $lines = explode( "\n", wfMsgForContent( 'metadata-fields' ) );
+ foreach( $lines as $line ) {
+ $matches = array();
+ if( preg_match( '/^\\*\s*(.*?)\s*$/', $line, $matches ) ) {
+ $fields[] = $matches[1];
+ }
+ }
+ $fields = array_map( 'strtolower', $fields );
+ return $fields;
+ }
-?>
+ function formatMetadata( $image ) {
+ $result = array(
+ 'visible' => array(),
+ 'collapsed' => array()
+ );
+ $metadata = $image->getMetadata();
+ if ( !$metadata ) {
+ return false;
+ }
+ $exif = unserialize( $metadata );
+ if ( !$exif ) {
+ return false;
+ }
+ unset( $exif['MEDIAWIKI_EXIF_VERSION'] );
+ $format = new FormatExif( $exif );
+
+ $formatted = $format->getFormattedData();
+ // Sort fields into visible and collapsed
+ $visibleFields = $this->visibleMetadataFields();
+ foreach ( $formatted as $section => $tags ) {
+ foreach ( $tags as $name => $value ) {
+ $tag = strtolower( $name );
+ self::addMeta( $result,
+ in_array( $tag, $visibleFields ) ? 'visible' : 'collapsed',
+ 'exif',
+ $tag,
+ $value
+ );
+ }
+ }
+ return $result;
+ }
+}
dépôts / lhc / web / wiklou.git / blobdiff