Fix incorrect swizzle on BGRA platforms in filterColor4f path

src/core/SkColorFilter.cpp

 /*
  * Copyright 2006 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 "SkColorFilter.h"
 #include "SkReadBuffer.h"
 #include "SkRefCnt.h"
@@ skipping 25 matching lines @@
     return nullptr;
 }
 #endif
 
 void SkColorFilter::filterSpan4f(const SkPM4f src[], int count, SkPM4f result[]) const {
     const int N = 128;
     SkPMColor tmp[N];
     while (count > 0) {
         int n = SkTMin(count, N);
         for (int i = 0; i < n; ++i) {
-            SkNx_cast<uint8_t>(Sk4f::Load(src[i].fVec) * Sk4f(255) + Sk4f(0.5f)).store(&tmp[i]);
+            tmp[i] = src[i].toPMColor();
         }
         this->filterSpan(tmp, n, tmp);
         for (int i = 0; i < n; ++i) {
             result[i] = SkPM4f::FromPMColor(tmp[i]);
         }
         src += n;
         result += n;
         count -= n;
     }
 }
@@ skipping 121 matching lines @@
     }
     return sk_sp<SkColorFilter>(new SkComposeColorFilter(std::move(outer), std::move(inner),count));
 }
 
 #include "SkModeColorFilter.h"
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkColorFilter)
 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkComposeColorFilter)
 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkModeColorFilter)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END