Filter downsampled pixel art (itgalaxy#257)

* Created a more intricate sample image for pixel art, which is downsampled by a few favicons. * Nearest-neighbour is now only used when upscaling pixel art; this preserves the impression of detail when generating small favicons from large sprites.
ranpo · Feb 16, 2019 · ed95ccc · ed95ccc
1 parent 7cb1a37
commit ed95ccc
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Showing 4 changed files with 6,073 additions and 4,363 deletions.
diff --git a/src/helpers.js b/src/helpers.js
@@ -273,7 +273,11 @@ module.exports = function(options) {
               width,
               height,
               Jimp.HORIZONTAL_ALIGN_CENTER | Jimp.VERTICAL_ALIGN_MIDDLE,
-              options.pixel_art ? Jimp.RESIZE_NEAREST_NEIGHBOR : null
+              options.pixel_art &&
+                width >= image.bitmap.width &&
+                height >= image.bitmap.height
+                ? Jimp.RESIZE_NEAREST_NEIGHBOR
+                : null
             )
           );
         }

diff --git a/test/fixtures/pixel_art.png b/test/fixtures/pixel_art.png