Nigel Tao
746988e7a2
vector: add SIMD versions of xxxAccumulateOpSrc.
...
name old time/op new time/op delta
GlyphAlpha16Src-8 3.37µs ± 0% 3.07µs ± 1% -8.86% (p=0.000 n=9+9)
GlyphAlpha32Src-8 6.01µs ± 1% 4.55µs ± 0% -24.28% (p=0.000 n=10+9)
GlyphAlpha64Src-8 13.2µs ± 0% 8.1µs ± 0% -38.69% (p=0.000 n=10+9)
GlyphAlpha128Src-8 32.9µs ± 0% 16.9µs ± 0% -48.85% (p=0.000 n=10+9)
GlyphAlpha256Src-8 98.0µs ± 0% 43.6µs ± 1% -55.50% (p=0.000 n=10+10)
A comparison of the non-SIMD and SIMD versions:
name time/op
FixedAccumulateOpSrc16-8 368ns ± 0%
FixedAccumulateOpSrcSIMD16-8 86.8ns ± 1%
FloatingAccumulateOpSrc16-8 434ns ± 0%
FloatingAccumulateOpSrcSIMD16-8 119ns ± 0%
FixedAccumulateOpSrc64-8 6.12µs ± 0%
FixedAccumulateOpSrcSIMD64-8 1.17µs ± 0%
FloatingAccumulateOpSrc64-8 7.15µs ± 0%
FloatingAccumulateOpSrcSIMD64-8 1.68µs ± 1%
Change-Id: I58e5c7a3ecd12e536aab8e765e94275453d0eac8
Reviewed-on: https://go-review.googlesource.com/30431
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-10 07:32:32 +00:00
Nigel Tao
72141d56a2
vector: re-order some functions.
...
There are no code changes, just a re-ordering so that these files are
consistent with others in this package: OpOver, OpSrc, Mask.
Change-Id: Ib1d46a8e912dae0c760af655e919b77023688189
Reviewed-on: https://go-review.googlesource.com/30111
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-10-02 02:10:30 +00:00
Nigel Tao
b077ed42b3
vector: implement arbitrary dst and src image types.
...
Change-Id: Ib0d0961c69cabc3bb01d7b1d244796f0f713b819
Reviewed-on: https://go-review.googlesource.com/29691
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-09-24 05:40:50 +00:00
Nigel Tao
cd8486aac9
vector: implement DrawOp == draw.Over.
...
Some "TODO: the general case" lines remain.
Change-Id: If66e484a00d5ea3fce9db37d4ee493739648daa3
Reviewed-on: https://go-review.googlesource.com/29495
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-09-23 01:58:13 +00:00
Nigel Tao
714f2e47f7
vector: new package for rasterizing 2-D graphics.
...
Updates golang/go#16904
Change-Id: I4e11e4e859c007c3444655a227ac935c27f3f784
Reviewed-on: https://go-review.googlesource.com/28347
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-09-04 08:48:55 +00:00
