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>
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>
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>
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>
