Manual:$wgThumbnailBuckets
| サムネイルの設定: $wgThumbnailBuckets | |
|---|---|
| サムネイルのレンダリングを高速化するために使用する中間的なサムネサイズのリスト。 |
|
| 導入されたバージョン: | 1.24.0 (Gerrit change 135008; git #7036e7b6) |
| 除去されたバージョン: | 使用中 |
| 許容される値: | (正の整数の配列) |
| 既定値: | null |
| その他の設定: アルファベット順 | 機能順 | |
詳細
When $wgThumbnailBuckets is defined, MediaWiki will use intermediary thumbnails to speed up thumbnail rendering.
$wgThumbnailBuckets must be set to a list of thumbnail widths; whenever a new thumbnail needs to be rendered, MediaWiki will find the smallest bucket which is larger than the target width + $wgThumbnailMinimumBucketDistance but smaller than the original, and it will scale that thumbnail down to the target size instead of scaling down the original file.
This is done recursively, i.e. if the intermediary thumbnail for that bucket does not exist, it will be created from the intermediary thumbnail for the next bucket.
This will increase thumbnail generation speed considerably, especially for large images, but it will cause some loss of quality as thumbnails are now the result of several chained lossy transformations instead of just one.
File handlers have to opt into using this feature via MediaHandler::supportsBucketing().
現在の時点はBitmapHandlerがサポートしているのはこれのみです。