Make SSE2/Neon convolution functions not to read extra bytes

src/opts/opts_check_x86.cpp

 /*
  * Copyright 2009 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapFilter_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSE2.h"
 #include "SkBitmapProcState_opts_SSSE3.h"
@@ skipping 19 matching lines @@
 /* This file must *not* be compiled with -msse or any other optional SIMD
    extension, otherwise gcc may generate SIMD instructions even for scalar ops
    (and thus give an invalid instruction on Pentium3 on the code below).
    For example, only files named *_SSE2.cpp in this directory should be
    compiled with -msse2 or higher. */
 
 ////////////////////////////////////////////////////////////////////////////////
 
 void SkBitmapScaler::PlatformConvolutionProcs(SkConvolutionProcs* procs) {
     if (SkCpu::Supports(SkCpu::SSE2)) {
-        procs->fExtraHorizontalReads = 3;
         procs->fConvolveVertically = &convolveVertically_SSE2;
         procs->fConvolve4RowsHorizontally = &convolve4RowsHorizontally_SSE2;
         procs->fConvolveHorizontally = &convolveHorizontally_SSE2;
-        procs->fApplySIMDPadding = &applySIMDPadding_SSE2;
     }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
 void SkBitmapProcState::platformProcs() {
     /* Every optimization in the function requires at least SSE2 */
     if (!SkCpu::Supports(SkCpu::SSE2)) {
         return;
     }
@@ skipping 99 matching lines @@
         }
     } else {
         return nullptr;
     }
 
 }
 
 SkBlitMask::RowProc SkBlitMask::PlatformRowProcs(SkColorType, SkMask::Format, RowFlags) {
     return nullptr;
 }