07a722cdcf
Bug: b/63909536 Android's ImageDecoder API takes as input an arbitrary width and height to scale the image to. Internally, this uses SkAndroidCodec to sample, and then (if not a perfect match) scales to the desired size with drawing. computeSampledSize is a modified version of what ImageDecoder currently does to convert from arbitrary dimensions to a sampleSize. Moving it here allows it to be shared by SkAnimatedImage. The modified version also corrects two bugs: - a client using the dimensions returned by getSampledDimensions previously may have resulted in ImageDecoder decoding to a larger size and then scaling it. (example found in tests: dog.jpg is 180 x 180. getSampledDimensions(8) returns 23 x 23, but the old method resulted in using sampleSize of 7 and downscaling the resulting 25 x 25 image.) - recompute the sampleSize based on the size returned by getSampledDimensions. Change-Id: I022040e8bac31c20988903a0452257f7ae902bc7 Reviewed-on: https://skia-review.googlesource.com/94620 Reviewed-by: Derek Sollenberger <djsollen@google.com> Commit-Queue: Leon Scroggins <scroggo@google.com> |
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SkAndroidCodec.h | ||
SkCodec.h | ||
SkCodecAnimation.h | ||
SkEncodedOrigin.h |