SkRasterPipeline preliminaries

src/opts/SkNx_neon.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkNx_neon_DEFINED
 #define SkNx_neon_DEFINED
 
@@ skipping 368 matching lines @@
     int operator[](int k) const {
         SkASSERT(0 <= k && k < 4);
         union { int32x4_t v; int is[4]; } pun = {fVec};
         return pun.is[k&3];
     }
 
     SkNx operator + (const SkNx& o) const { return vaddq_s32(fVec, o.fVec); }
     SkNx operator - (const SkNx& o) const { return vsubq_s32(fVec, o.fVec); }
     SkNx operator * (const SkNx& o) const { return vmulq_s32(fVec, o.fVec); }
 
+    SkNx operator & (const SkNx& o) const { return vandq_s32(fVec, o.fVec); }
     SkNx operator | (const SkNx& o) const { return vorrq_s32(fVec, o.fVec); }
 
     SkNx operator << (int bits) const { SHIFT32(vshlq_n_s32, fVec, bits); }
     SkNx operator >> (int bits) const { SHIFT32(vshrq_n_s32, fVec, bits); }
 
     static SkNx Min(const SkNx& a, const SkNx& b) { return vminq_s32(a.fVec, b.fVec); }
     // TODO as needed
 
     int32x4_t fVec;
 };
@@ skipping 45 matching lines @@
 
 template<> inline Sk4h SkNx_cast<uint16_t, uint8_t>(const Sk4b& src) {
     return vget_low_u16(vmovl_u8(src.fVec));
 }
 
 template<> inline Sk4b SkNx_cast<uint8_t, uint16_t>(const Sk4h& src) {
     return vmovn_u16(vcombine_u16(src.fVec, src.fVec));
 }
 
 #endif//SkNx_neon_DEFINED