tree 91d5a5bc9bd7172078c348d59ebab472a524d0cd
parent f0647c10a19ae96304ba0c76f3571023e78dc319
author rivessamr <hello@rive.app> 1724264980 +0000
committer rivessamr <hello@rive.app> 1724264980 +0000

iOS images unpremult SIMD support

Support for SIMD instructions for unpremult

First checkin, using rive::int16x4 instructions : 1 pixel at a time
Further checkin, using rive::int16x4 instructions : 2 pixels at a time
Last checkin, avoid computation when opaque pixels (assume there will be enough opaque pixels to warrant this)

Thanks to Chris for the SIMD instructions usage in rive

More checkins: move the decode and unpremult to the rive decoder - this requires modifications to build files. The benefits are we are now running tests on this path. However, there are some issues with decoding two images for tests:

"../../test/assets/bad.jpg" ... Apple Preview app cannot open this image, however, the current test says that it should be not null
And
"../../test/assets/bad.png", Apple Preview app can load this images, however, the current test says that it should be null

Diffs=
e992059d6 iOS images unpremult SIMD support (#7875)

Co-authored-by: rivessamr <suki@rive.app>