- } elseif ( $wgUseImageMagick ) {
- # use ImageMagick
-
- if ( $this->mime == 'image/jpeg' ) {
- $quality = "-quality 80"; // 80%
- } elseif ( $this->mime == 'image/png' ) {
- $quality = "-quality 95"; // zlib 9, adaptive filtering
- } else {
- $quality = ''; // default
- }
-
- # Specify white background color, will be used for transparent images
- # in Internet Explorer/Windows instead of default black.
-
- # Note, we specify "-size {$width}" and NOT "-size {$width}x{$height}".
- # It seems that ImageMagick has a bug wherein it produces thumbnails of
- # the wrong size in the second case.
-
- $cmd = wfEscapeShellArg($wgImageMagickConvertCommand) .
- " {$quality} -background white -size {$width} ".
- wfEscapeShellArg($this->imagePath) .
- // Coalesce is needed to scale animated GIFs properly (bug 1017).
- ' -coalesce ' .
- // For the -resize option a "!" is needed to force exact size,
- // or ImageMagick may decide your ratio is wrong and slice off
- // a pixel.
- " -resize " . wfEscapeShellArg( "{$width}x{$height}!" ) .
- " -depth 8 " .
- wfEscapeShellArg($thumbPath) . " 2>&1";
- wfDebug("reallyRenderThumb: running ImageMagick: $cmd\n");
- wfProfileIn( 'convert' );
- $err = wfShellExec( $cmd, $retval );
- wfProfileOut( 'convert' );
- } elseif( $wgCustomConvertCommand ) {
- # Use a custom convert command
- # Variables: %s %d %w %h
- $src = wfEscapeShellArg( $this->imagePath );
- $dst = wfEscapeShellArg( $thumbPath );
- $cmd = $wgCustomConvertCommand;
- $cmd = str_replace( '%s', $src, str_replace( '%d', $dst, $cmd ) ); # Filenames
- $cmd = str_replace( '%h', $height, str_replace( '%w', $width, $cmd ) ); # Size
- wfDebug( "reallyRenderThumb: Running custom convert command $cmd\n" );
- wfProfileIn( 'convert' );
- $err = wfShellExec( $cmd, $retval );
- wfProfileOut( 'convert' );