Port uses of SkLazyPtr to SkOncePtr.

src/core/SkXfermode.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 "SkXfermode.h"
 #include "SkXfermode_proccoeff.h"
 #include "SkColorPriv.h"
-#include "SkLazyPtr.h"
 #include "SkMathPriv.h"
+#include "SkOncePtr.h"
 #include "SkOpts.h"
 #include "SkReadBuffer.h"
 #include "SkString.h"
 #include "SkWriteBuffer.h"
 
 #define SkAlphaMulAlpha(a, b)   SkMulDiv255Round(a, b)
 
 static inline unsigned saturated_add(unsigned a, unsigned b) {
     SkASSERT(a <= 255);
     SkASSERT(b <= 255);
@@ skipping 965 matching lines @@
     str->append(" dst: ");
     if (CANNOT_USE_COEFF == fDstCoeff) {
         str->append("can't use");
     } else {
         str->append(gCoeffStrings[fDstCoeff]);
     }
 }
 #endif
 
 
-// Technically, can't be static and passed as a template parameter.  So we use anonymous namespace.
-namespace {
-SkXfermode* create_mode(int iMode) {
-    SkXfermode::Mode mode = (SkXfermode::Mode)iMode;
-
-    ProcCoeff rec = gProcCoeffs[mode];
-    if (auto xfermode = SkOpts::create_xfermode(rec, mode)) {
-        return xfermode;
-    }
-    return new SkProcCoeffXfermode(rec, mode);
-}
-}  // namespace
-
-SK_DECLARE_STATIC_LAZY_PTR_ARRAY(SkXfermode, cached, SkXfermode::kLastMode + 1, create_mode);
+SK_DECLARE_STATIC_ONCE_PTR(SkXfermode, cached[SkXfermode::kLastMode + 1]);
 
 SkXfermode* SkXfermode::Create(Mode mode) {
     SkASSERT(SK_ARRAY_COUNT(gProcCoeffs) == kModeCount);
 
     if ((unsigned)mode >= kModeCount) {
         // report error
         return nullptr;
     }
 
     // Skia's "default" mode is srcover. nullptr in SkPaint is interpreted as srcover
     // so we can just return nullptr from the factory.
     if (kSrcOver_Mode == mode) {
         return nullptr;
     }
 
-    return SkSafeRef(cached[mode]);
+    return SkSafeRef(cached[mode].get([=]{
+        ProcCoeff rec = gProcCoeffs[mode];
+        if (auto xfermode = SkOpts::create_xfermode(rec, mode)) {
+            return xfermode;
+        }
+        return (SkXfermode*) new SkProcCoeffXfermode(rec, mode);
+    }));
 }
 
 SkXfermodeProc SkXfermode::GetProc(Mode mode) {
     SkXfermodeProc  proc = nullptr;
     if ((unsigned)mode < kModeCount) {
         proc = gProcCoeffs[mode].fProc;
     }
     return proc;
 }
 
@@ skipping 54 matching lines @@
     if (!xfer) {
         return SkXfermode::kOpaque_SrcColorOpacity == opacityType;
     }
 
     return xfer->isOpaque(opacityType);
 }
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkXfermode)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkProcCoeffXfermode)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END