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1 /* | |
2 * Copyright 2015 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #ifndef SkOpts_DEFINED | |
9 #define SkOpts_DEFINED | |
10 | |
11 #include "SkTypes.h" | |
12 | |
13 namespace SkOpts { | |
14 // Call to replace pointers to portable functions with pointers to CPU-speci
fic functions. | |
15 // Thread-safe and idempotent. | |
16 // Called by SkGraphics::Init(), and automatically #if SK_ALLOW_STATIC_GLOBA
L_INITIALIZERS. | |
17 void Init(); | |
18 | |
19 // Declare function pointers here... | |
20 | |
21 // Returns a fast approximation of 1.0f/sqrtf(x). | |
22 extern float (*rsqrt)(float); | |
23 } | |
24 | |
25 #endif//SkOpts_DEFINED | |
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