gfx/skia/skia/src/core/SkOpts.h
author Wes Kocher <wkocher@mozilla.com>
Wed, 10 May 2017 10:01:18 -0700
changeset 407965 ce2218406119c36a551e3faea4e192186ee46cc5
parent 407937 af6f19870b2a00759ac1d83dedc3db57213abfee
child 408167 0ded74baeaf23d7985401fe9bbabdb3d9385ac22
permissions -rw-r--r--
Backed out 9 changesets (bug 1340627) for graphical glitches a=backout Backed out changeset 0b1371055c7f (bug 1340627) Backed out changeset f152be1fadb7 (bug 1340627) Backed out changeset c691e2ab6a0c (bug 1340627) Backed out changeset 3cb4bceb8d79 (bug 1340627) Backed out changeset 026aadd76d06 (bug 1340627) Backed out changeset fdbd5d281287 (bug 1340627) Backed out changeset 75fb0d9858a9 (bug 1340627) Backed out changeset 0d4ec7d38a00 (bug 1340627) Backed out changeset af6f19870b2a (bug 1340627) MozReview-Commit-ID: 9dHr7xMZezY

/*
 * 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 "SkRasterPipeline.h"
#include "SkTextureCompressor.h"
#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().
    void Init();

    // Declare function pointers here...

    // May return nullptr if we haven't specialized the given Mode.
    extern SkXfermode* (*create_xfermode)(const ProcCoeff&, SkXfermode::Mode);

    typedef void (*BoxBlur)(const SkPMColor*, int, const SkIRect& srcBounds, SkPMColor*, int, int, int, int, int);
    extern BoxBlur box_blur_xx, box_blur_xy, box_blur_yx;

    typedef void (*Morph)(const SkPMColor*, SkPMColor*, int, int, int, int, int);
    extern Morph dilate_x, dilate_y, erode_x, erode_y;

    typedef bool (*TextureCompressor)(uint8_t* dst, const uint8_t* src,
                                      int width, int height, size_t rowBytes);
    extern TextureCompressor (*texture_compressor)(SkColorType, SkTextureCompressor::Format);
    extern bool (*fill_block_dimensions)(SkTextureCompressor::Format, int* x, int* y);

    extern void (*blit_mask_d32_a8)(SkPMColor*, size_t, const SkAlpha*, size_t, SkColor, int, int);
    extern void (*blit_row_color32)(SkPMColor*, const SkPMColor*, int, SkPMColor);
    extern void (*blit_row_s32a_opaque)(SkPMColor*, const SkPMColor*, int, U8CPU);

    // This function is an optimized version of SkColorCubeFilter::filterSpan
    extern void (*color_cube_filter_span)(const SkPMColor[],
                                          int,
                                          SkPMColor[],
                                          const int * [2],
                                          const SkScalar * [2],
                                          int,
                                          const SkColor*);

    // Swizzle input into some sort of 8888 pixel, {premul,unpremul} x {rgba,bgra}.
    typedef void (*Swizzle_8888)(uint32_t*, const void*, int);
    extern Swizzle_8888 RGBA_to_BGRA,          // i.e. just swap RB
                        RGBA_to_rgbA,          // i.e. just premultiply
                        RGBA_to_bgrA,          // i.e. swap RB and premultiply
                        RGB_to_RGB1,           // i.e. insert an opaque alpha
                        RGB_to_BGR1,           // i.e. swap RB and insert an opaque alpha
                        gray_to_RGB1,          // i.e. expand to color channels + an opaque alpha
                        grayA_to_RGBA,         // i.e. expand to color channels
                        grayA_to_rgbA,         // i.e. expand to color channels and premultiply
                        inverted_CMYK_to_RGB1, // i.e. convert color space
                        inverted_CMYK_to_BGR1; // i.e. convert color space

    // Blend ndst src pixels over dst, where both src and dst point to sRGB pixels (RGBA or BGRA).
    // If nsrc < ndst, we loop over src to create a pattern.
    extern void (*srcover_srgb_srgb)(uint32_t* dst, const uint32_t* src, int ndst, int nsrc);

    // The fastest high quality 32-bit hash we can provide on this platform.
    extern uint32_t (*hash_fn)(const void*, size_t, uint32_t seed);
    static inline uint32_t hash(const void* data, size_t bytes, uint32_t seed=0) {
        return hash_fn(data, bytes, seed);
    }

    extern SkRasterPipeline::Fn stages_4  [SkRasterPipeline::kNumStockStages],
                                stages_1_3[SkRasterPipeline::kNumStockStages];
}

#endif//SkOpts_DEFINED