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* Simplify SkAnimatedImageGravatar Leon Scroggins III2018-01-30
| | | | | | | | | | | | | Bug: b/63908092 Rather than keeping track of the time and whether the animation is running, leave that up to the client. Offer a single method to decode the next frame, allowing the client to stay one frame ahead. Change-Id: I546013e32e3a0874181b0dce1349bbec07aaadd4 Reviewed-on: https://skia-review.googlesource.com/101544 Reviewed-by: Derek Sollenberger <djsollen@google.com> Commit-Queue: Leon Scroggins <scroggo@google.com>
* Respect repetition count in SkAnimatedImageGravatar Leon Scroggins III2018-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | Bug: b/63908092 By default use the repetition count stored in the encoded data (if any). Allow setting the repetition count manually, so that the animation will stop after n+1 total cycles (unless -1 is used for infinite). If the animation is complete, make start reset it. When the animation is not running, make update return max double (i.e. no need to update any time soon). Fix a bug where the first call to update returned -1. Share write_bm with CodecAnimTest, for debugging. Update Sample to check isRunning rather than keeping its own record of whether the animation is running. Change-Id: I883e4d7325f7a7b23a422fa9d756f9ea3018f0f8 Reviewed-on: https://skia-review.googlesource.com/97082 Reviewed-by: Derek Sollenberger <djsollen@google.com> Commit-Queue: Leon Scroggins <scroggo@google.com>
* Use SkAndroidCodec in SkAnimatedImageGravatar Leon Scroggins III2018-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | Bug: b/63909536 Bug: b/63908092 SkAnimatedImage is designed around a specific Android use case, so move it into the android folders. Make SkAnimatedImage hold an SkAndroidCodec (instead of an SkCodec). Expose fCodec so that SkAnimatedImage can animate by using the internal SkCodec. Update the sample to use SkAndroidCodec. Allow webp to decode a scaled down animation. For RestoreBG frames, adjust the frameRect (which is erased) to account for the scaling. Add a test to verify that we decode a webp with a RestoreBG frame successfully. Disable scaling for later frames in other formats (GIF, for now), since the code for erasing a RestoreBG frame is currently unaware of the sampling. Change-Id: I5dd2b86138f2c7f6adcd08dce1bd49040f7dc224 Reviewed-on: https://skia-review.googlesource.com/94621 Commit-Queue: Leon Scroggins <scroggo@google.com> Reviewed-by: Derek Sollenberger <djsollen@google.com>
* Add an SkDrawable for animated images (e.g. GIF)Gravatar Leon Scroggins III2018-01-12
Bug: b/63909536 SkAnimatedImage is a simple drawable for animating a GIF. Thread-safety is left up to the client. At most two bitmaps are stored in the drawable; one for the current frame and one for a frame that may need to be restored. The backup frame prevents some cases where we would otherwise have to re-decode from the beginning of the image. The API lets the client set the time value, and decodes to match that time. TODO: - Callback for when the animation is complete - Ability to use SkAndroidCodec - Modify the loop count (or leave that up to client?) - Better and/or client-specific caching Other changes: - Add a sample which animates a GIF - Reenable SK_CODEC_PRINTF for debug builds and Android Change-Id: I945ffbccdb6008f2a05ed4d9b2af869a261fb300 Reviewed-on: https://skia-review.googlesource.com/93420 Reviewed-by: Derek Sollenberger <djsollen@google.com> Commit-Queue: Leon Scroggins <scroggo@google.com>