1 files changed, 35 insertions, 0 deletions
diff --git a/src/core/SkOpts.h b/src/core/SkOpts.h
new file mode 100644
index 0000000000..9239f8efec
--- /dev/null
+++ b/src/core/SkOpts.h
@@ -0,0 +1,35 @@
+/*
+ * 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 SkOpts_DEFINED
+#define SkOpts_DEFINED
+
+#include "SkTypes.h"
+#include "SkXfermode.h"
+
+struct ProcCoeff;
+
+namespace SkOpts {
+    // Call to replace pointers to portable functions with pointers to CPU-specific functions.
+    // Thread-safe and idempotent.
+    // Called by SkGraphics::Init(), and automatically #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS.
+    void Init();
+
+    // Declare function pointers here...
+
+    // Returns a fast approximation of 1.0f/sqrtf(x).
+    extern float (*rsqrt)(float);
+
+    // See SkUtils.h
+    extern void (*memset16)(uint16_t[], uint16_t, int);
+    extern void (*memset32)(uint32_t[], uint32_t, int);
+
+    // May return nullptr if we haven't specialized the given Mode.
+    extern SkXfermode* (*create_xfermode)(const ProcCoeff&, SkXfermode::Mode);
+}
+
+#endif//SkOpts_DEFINED