add Load2() to Sk4f

and test it.

Change-Id: Ib0c2cf93c63d8d3c36a7d4d60bbec4ecede29bc7
Reviewed-on: https://skia-review.googlesource.com/78480
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/core/SkNx.h b/src/core/SkNx.h
index 6957cb0d38..91c978b70b 100644
--- a/src/core/SkNx.h
+++ b/src/core/SkNx.h
@@ -78,6 +78,15 @@ struct SkNx {
         *b = SkNx{bl, bh};
         *c = SkNx{cl, ch};
     }
+    AI static void Load2(const void* vptr, SkNx* a, SkNx* b) {
+        auto ptr = (const char*)vptr;
+        Half al, bl,
+             ah, bh;
+        Half::Load2(ptr                  , &al, &bl);
+        Half::Load2(ptr + 2*N/2*sizeof(T), &ah, &bh);
+        *a = SkNx{al, ah};
+        *b = SkNx{bl, bh};
+    }
     AI static void Store4(void* vptr, const SkNx& a, const SkNx& b, const SkNx& c, const SkNx& d) {
         auto ptr = (char*)vptr;
         Half::Store4(ptr,                   a.fLo, b.fLo, c.fLo, d.fLo);
@@ -168,6 +177,11 @@ struct SkNx<1,T> {
         *b = Load(ptr + 1*sizeof(T));
         *c = Load(ptr + 2*sizeof(T));
     }
+    AI static void Load2(const void* vptr, SkNx* a, SkNx* b) {
+        auto ptr = (const char*)vptr;
+        *a = Load(ptr + 0*sizeof(T));
+        *b = Load(ptr + 1*sizeof(T));
+    }
     AI static void Store4(void* vptr, const SkNx& a, const SkNx& b, const SkNx& c, const SkNx& d) {
         auto ptr = (char*)vptr;
         a.store(ptr + 0*sizeof(T));