From 64bbad360f30930befafee1bdefe4ad89f130dac Mon Sep 17 00:00:00 2001 From: mtklein Date: Thu, 14 Jul 2016 12:03:04 -0700 Subject: Revert of Expand _01 half<->float limitation to _finite. Simplify. (patchset #7 id:120001 of https://codereview.chromium.org/2145663003/ ) Reason for revert: Unit tests fail on Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Fast Original issue's description: > Expand _01 half<->float limitation to _finite. Simplify. > > It's become clear we need to sometimes deal with values <0 or >1. > I'm not yet convinced we care about NaN or +-inf. > > We had some fairly clever tricks and optimizations here for NEON > and SSE. I've thrown them out in favor of a single implementation. > If we find the specializations mattered, we can certainly figure out > how to extend them to this new range/domain. > > This happens to add a vectorized float -> half for ARMv7, which was > missing from the _01 version. (The SSE strategy was not portable to > platforms that flush denorm floats to zero.) > > I've tested the full float range for FloatToHalf on my desktop and a 5x. > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145663003 > CQ_INCLUDE_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot;master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot,Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Fast-Trybot > > Committed: https://skia.googlesource.com/skia/+/3296bee70d074bb8094b3229dbe12fa016657e90 TBR=msarett@google.com,mtklein@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2151023003 --- tests/SkNxTest.cpp | 19 ------------------- 1 file changed, 19 deletions(-) (limited to 'tests/SkNxTest.cpp') diff --git a/tests/SkNxTest.cpp b/tests/SkNxTest.cpp index 51d937dd4d..5509814c07 100644 --- a/tests/SkNxTest.cpp +++ b/tests/SkNxTest.cpp @@ -288,22 +288,3 @@ DEF_TEST(SkNx_u16_float, r) { REPORTER_ASSERT(r, !memcmp(s16, d16, sizeof(s16))); } } - -// The SSE2 implementation of SkNx_cast(Sk4i) is non-trivial, so worth a test. -DEF_TEST(SkNx_int_u16, r) { - // These are pretty hard to get wrong. - for (int i = 0; i <= 0x7fff; i++) { - uint16_t expected = (uint16_t)i; - uint16_t actual = SkNx_cast(Sk4i(i))[0]; - - REPORTER_ASSERT(r, expected == actual); - } - - // A naive implementation with _mm_packs_epi32 would succeed up to 0x7fff but fail here: - for (int i = 0x8000; (1) && i <= 0xffff; i++) { - uint16_t expected = (uint16_t)i; - uint16_t actual = SkNx_cast(Sk4i(i))[0]; - - REPORTER_ASSERT(r, expected == actual); - } -} -- cgit v1.2.3