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 "SkConvolver.h"
12#include "SkRasterPipeline.h"
13#include "SkTypes.h"
14#include "SkXfermodePriv.h"
15
16struct ProcCoeff;
17
18namespace SkOpts {
19    // Call to replace pointers to portable functions with pointers to CPU-specific functions.
20    // Thread-safe and idempotent.
21    // Called by SkGraphics::Init().
22    void Init();
23
24    // Declare function pointers here...
25
26    // May return nullptr if we haven't specialized the given Mode.
27    extern SkXfermode* (*create_xfermode)(const ProcCoeff&, SkBlendMode);
28
29    typedef void (*BoxBlur)(const SkPMColor*, int, const SkIRect& srcBounds, SkPMColor*, int, int, int, int, int);
30    extern BoxBlur box_blur_xx, box_blur_xy, box_blur_yx;
31
32    typedef void (*Morph)(const SkPMColor*, SkPMColor*, int, int, int, int, int);
33    extern Morph dilate_x, dilate_y, erode_x, erode_y;
34
35    extern void (*blit_mask_d32_a8)(SkPMColor*, size_t, const SkAlpha*, size_t, SkColor, int, int);
36    extern void (*blit_row_color32)(SkPMColor*, const SkPMColor*, int, SkPMColor);
37    extern void (*blit_row_s32a_opaque)(SkPMColor*, const SkPMColor*, int, U8CPU);
38
39    // Swizzle input into some sort of 8888 pixel, {premul,unpremul} x {rgba,bgra}.
40    typedef void (*Swizzle_8888)(uint32_t*, const void*, int);
41    extern Swizzle_8888 RGBA_to_BGRA,          // i.e. just swap RB
42                        RGBA_to_rgbA,          // i.e. just premultiply
43                        RGBA_to_bgrA,          // i.e. swap RB and premultiply
44                        RGB_to_RGB1,           // i.e. insert an opaque alpha
45                        RGB_to_BGR1,           // i.e. swap RB and insert an opaque alpha
46                        gray_to_RGB1,          // i.e. expand to color channels + an opaque alpha
47                        grayA_to_RGBA,         // i.e. expand to color channels
48                        grayA_to_rgbA,         // i.e. expand to color channels and premultiply
49                        inverted_CMYK_to_RGB1, // i.e. convert color space
50                        inverted_CMYK_to_BGR1; // i.e. convert color space
51
52    // Blend ndst src pixels over dst, where both src and dst point to sRGB pixels (RGBA or BGRA).
53    // If nsrc < ndst, we loop over src to create a pattern.
54    extern void (*srcover_srgb_srgb)(uint32_t* dst, const uint32_t* src, int ndst, int nsrc);
55
56    // The fastest high quality 32-bit hash we can provide on this platform.
57    extern uint32_t (*hash_fn)(const void*, size_t, uint32_t seed);
58    static inline uint32_t hash(const void* data, size_t bytes, uint32_t seed=0) {
59        return hash_fn(data, bytes, seed);
60    }
61
62    extern void (*run_pipeline)(size_t, size_t, const SkRasterPipeline::Stage*, int);
63
64    extern void (*convolve_vertically)(const SkConvolutionFilter1D::ConvolutionFixed* filter_values,
65                                       int filter_length, unsigned char* const* source_data_rows,
66                                       int pixel_width, unsigned char* out_row, bool has_alpha);
67    extern void (*convolve_4_rows_horizontally)(const unsigned char* src_data[4],
68                                                const SkConvolutionFilter1D& filter,
69                                                unsigned char* out_row[4], size_t out_row_bytes);
70    extern void (*convolve_horizontally)(const unsigned char* src_data, const SkConvolutionFilter1D& filter,
71                                         unsigned char* out_row, bool has_alpha);
72}
73
74#endif//SkOpts_DEFINED
75