Fix underflow/overflow issues in skvm::approx_pow2.
The skvm implementation of pow2 uses a clever bit-twiddling trick to
generate a floating-point value that can be cast to integer, then bit-
punned to float, to generate its result. However, the bit trick fails
for large inputs, and the bit-punning step generates a nonsense result.
This is now fixed by using a well-positioned clamp.
Change-Id: I55143a98324f5f518d0875149a0b6ce6d734ded0
Bug: skia:12847
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/497283
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2 files changed