Tinker with SkLazyFnPtr a bit.

src/core/SkUtils.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 "SkUtils.h"
@@ skipping 95 matching lines @@
         do {
             *dst++ = value;
         } while (--count != 0);
     }
 }
 
 static void sk_memcpy32_portable(uint32_t dst[], const uint32_t src[], int count) {
     memcpy(dst, src, count * sizeof(uint32_t));
 }
 
-static SkMemset16Proc choose_memset16() {
+namespace {
+// These three methods technically need external linkage to be passed as template parameters.
+// Since they can't be static, we hide them in an anonymous namespace instead.
+
+SkMemset16Proc choose_memset16() {
     SkMemset16Proc proc = SkMemset16GetPlatformProc();
     return proc ? proc : sk_memset16_portable;
 }
 
-void sk_memset16(uint16_t dst[], uint16_t value, int count) {
-    SK_DECLARE_STATIC_LAZY_FN_PTR(SkMemset16Proc, choice);
-    return choice.get(choose_memset16)(dst, value, count);
-}
-
-static SkMemset32Proc choose_memset32() {
+SkMemset32Proc choose_memset32() {
     SkMemset32Proc proc = SkMemset32GetPlatformProc();
     return proc ? proc : sk_memset32_portable;
 }
 
-void sk_memset32(uint32_t dst[], uint32_t value, int count) {
-    SK_DECLARE_STATIC_LAZY_FN_PTR(SkMemset32Proc, choice);
-    return choice.get(choose_memset32)(dst, value, count);
-}
-
-static SkMemcpy32Proc choose_memcpy32() {
+SkMemcpy32Proc choose_memcpy32() {
     SkMemcpy32Proc proc = SkMemcpy32GetPlatformProc();
     return proc ? proc : sk_memcpy32_portable;
 }
 
+}  // namespace
+
+void sk_memset16(uint16_t dst[], uint16_t value, int count) {
+    SK_DECLARE_STATIC_LAZY_FN_PTR(SkMemset16Proc, proc, choose_memset16);
+    proc.get()(dst, value, count);
+}
+
+void sk_memset32(uint32_t dst[], uint32_t value, int count) {
+    SK_DECLARE_STATIC_LAZY_FN_PTR(SkMemset32Proc, proc, choose_memset32);
+    proc.get()(dst, value, count);
+}
+
 void sk_memcpy32(uint32_t dst[], const uint32_t src[], int count) {
-    SK_DECLARE_STATIC_LAZY_FN_PTR(SkMemcpy32Proc, choice);
-    return choice.get(choose_memcpy32)(dst, src, count);
+    SK_DECLARE_STATIC_LAZY_FN_PTR(SkMemcpy32Proc, proc, choose_memcpy32);
+    proc.get()(dst, src, count);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 /*  0xxxxxxx    1 total
     10xxxxxx    // never a leading byte
     110xxxxx    2 total
     1110xxxx    3 total
     11110xxx    4 total
 
@@ skipping 253 matching lines @@
         }
     } else {
         char* start = utf8;
         while (utf16 < stop) {
             utf8 += SkUTF8_FromUnichar(SkUTF16_NextUnichar(&utf16), utf8);
         }
         size = utf8 - start;
     }
     return size;
 }