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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 "SkRasterPipeline.h"
     12 #include "SkTypes.h"
     13 #include "SkXfermodePriv.h"
     14 
     15 struct ProcCoeff;
     16 
     17 namespace SkOpts {
     18     // Call to replace pointers to portable functions with pointers to CPU-specific functions.
     19     // Thread-safe and idempotent.
     20     // Called by SkGraphics::Init().
     21     void Init();
     22 
     23     // Declare function pointers here...
     24 
     25     // May return nullptr if we haven't specialized the given Mode.
     26     extern SkXfermode* (*create_xfermode)(SkBlendMode);
     27 
     28     typedef void (*Morph)(const SkPMColor*, SkPMColor*, int, int, int, int, int);
     29     extern Morph dilate_x, dilate_y, erode_x, erode_y;
     30 
     31     extern void (*blit_mask_d32_a8)(SkPMColor*, size_t, const SkAlpha*, size_t, SkColor, int, int);
     32     extern void (*blit_row_color32)(SkPMColor*, const SkPMColor*, int, SkPMColor);
     33     extern void (*blit_row_s32a_opaque)(SkPMColor*, const SkPMColor*, int, U8CPU);
     34 
     35     // Swizzle input into some sort of 8888 pixel, {premul,unpremul} x {rgba,bgra}.
     36     typedef void (*Swizzle_8888)(uint32_t*, const void*, int);
     37     extern Swizzle_8888 RGBA_to_BGRA,          // i.e. just swap RB
     38                         RGBA_to_rgbA,          // i.e. just premultiply
     39                         RGBA_to_bgrA,          // i.e. swap RB and premultiply
     40                         RGB_to_RGB1,           // i.e. insert an opaque alpha
     41                         RGB_to_BGR1,           // i.e. swap RB and insert an opaque alpha
     42                         gray_to_RGB1,          // i.e. expand to color channels + an opaque alpha
     43                         grayA_to_RGBA,         // i.e. expand to color channels
     44                         grayA_to_rgbA,         // i.e. expand to color channels and premultiply
     45                         inverted_CMYK_to_RGB1, // i.e. convert color space
     46                         inverted_CMYK_to_BGR1; // i.e. convert color space
     47 
     48     extern void (*memset16)(uint16_t[], uint16_t, int);
     49     extern void SK_API (*memset32)(uint32_t[], uint32_t, int);
     50     extern void (*memset64)(uint64_t[], uint64_t, int);
     51 
     52     // The fastest high quality 32-bit hash we can provide on this platform.
     53     extern uint32_t (*hash_fn)(const void*, size_t, uint32_t seed);
     54     static inline uint32_t hash(const void* data, size_t bytes, uint32_t seed=0) {
     55         return hash_fn(data, bytes, seed);
     56     }
     57 }
     58 
     59 #endif//SkOpts_DEFINED
     60