diff options
| author |  mtklein <mtklein@chromium.org> | 2015-04-27 14:22:32 -0700 |
|---|---|---|
| committer |  Commit bot <commit-bot@chromium.org> | 2015-04-27 14:22:32 -0700 |
| commit | d7c014ff03d44d3ed7a6a2ddca59621a7e98f739 (patch) | |
| tree | 0739bd83543af31c22ef25e1b352cedb56a4ee77 /src/core/SkNx.h | |
| parent | 498856ebc6f22d7018071bd6696756d7cd077ab8 (diff) | |
Split rsqrt into rsqrt{0,1,2}, with increasing cost and precision on ARM
This is a logical no-op. Everything was using the equivalent of rsqrt1() before, and is now after.
BUG=skia:
Committed: https://skia.googlesource.com/skia/+/9de16283fdc8cc0d31a84f503578d0ecea4e8297
CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-Arm64-Debug-Android-Trybot
Review URL: https://codereview.chromium.org/1109913002
Diffstat (limited to 'src/core/SkNx.h')
| -rw-r--r-- | src/core/SkNx.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/core/SkNx.h b/src/core/SkNx.h index 65b5b97a83..4cfc6e3d9a 100644 --- a/src/core/SkNx.h +++ b/src/core/SkNx.h @@ -119,7 +119,11 @@ public: } SkNf sqrt() const { return SkNf(fLo. sqrt(), fHi. sqrt()); } - SkNf rsqrt() const { return SkNf(fLo.rsqrt(), fHi.rsqrt()); } + + // Generally, increasing precision, increasing cost. + SkNf rsqrt0() const { return SkNf(fLo.rsqrt0(), fHi.rsqrt0()); } + SkNf rsqrt1() const { return SkNf(fLo.rsqrt1(), fHi.rsqrt1()); } + SkNf rsqrt2() const { return SkNf(fLo.rsqrt2(), fHi.rsqrt2()); } SkNf invert() const { return SkNf(fLo. invert(), fHi. invert()); } SkNf approxInvert() const { return SkNf(fLo.approxInvert(), fHi.approxInvert()); } @@ -207,7 +211,9 @@ public: static SkNf Max(const SkNf& l, const SkNf& r) { return SkNf(SkTMax(l.fVal, r.fVal)); } SkNf sqrt() const { return SkNf(Sqrt(fVal)); } - SkNf rsqrt() const { return SkNf((T)1 / Sqrt(fVal)); } + SkNf rsqrt0() const { return SkNf((T)1 / Sqrt(fVal)); } + SkNf rsqrt1() const { return this->rsqrt0(); } + SkNf rsqrt2() const { return this->rsqrt1(); } SkNf invert() const { return SkNf((T)1 / fVal); } SkNf approxInvert() const { return this->invert(); } |