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      1 /*
      2  * Copyright 2016 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 #include "Benchmark.h"
      9 
     10 #include "SkCanvas.h"
     11 #include "SkShader.h"
     12 #include "SkGradientShader.h"
     13 #include "SkString.h"
     14 #include "SkColor.h"
     15 #include "SkPaint.h"
     16 
     17 enum class Kind {
     18     k001,
     19     k011,
     20     kCentered,
     21 };
     22 
     23 const char* kindstr(Kind k) {
     24     switch (k) {
     25         case Kind::k001:
     26             return "001";
     27         case Kind::k011:
     28             return "011";
     29         case Kind::kCentered:
     30             return "centered";
     31         default:
     32             return "Invalid kind";
     33     }
     34 }
     35 
     36 class HardStopGradientBench_SpecialHardStops : public Benchmark {
     37 public:
     38     HardStopGradientBench_SpecialHardStops(int w, int h, Kind kind) {
     39         fW    = w;
     40         fH    = h;
     41         fKind = kind;
     42 
     43         fName.printf("hardstop_special_%03dx%03d_%s", fW, fH, kindstr(fKind));
     44     }
     45 
     46     const char* onGetName() override {
     47         return fName.c_str();
     48     }
     49 
     50     SkIPoint onGetSize() override {
     51         return SkIPoint::Make(fW, fH);
     52     }
     53 
     54     void onPreDraw(SkCanvas* canvas) override {
     55         SkPoint points[2] = {
     56             SkPoint::Make(   0.0f, fH/2.0f),
     57             SkPoint::Make(fW+2.0f, fH/2.0f),
     58         };
     59 
     60         SkColor colors[4] = {
     61             SK_ColorRED,
     62             SK_ColorGREEN,
     63             SK_ColorBLUE,
     64             SK_ColorYELLOW,
     65         };
     66 
     67         SkScalar pos_001[3] = {
     68             0.0f,
     69             0.0f,
     70             1.0f,
     71         };
     72 
     73         SkScalar pos_011[3] = {
     74             0.0f,
     75             1.0f,
     76             1.0f,
     77         };
     78 
     79         SkScalar pos_centered[4] = {
     80             0.0f,
     81             0.5f,
     82             0.5f,
     83             1.0f,
     84         };
     85 
     86         SkScalar* positions = fKind == Kind::k001 ? pos_001 :
     87                               fKind == Kind::k011 ? pos_011 :
     88                                                     pos_centered;
     89 
     90         int count = fKind == Kind::kCentered ? 4 : 3;
     91 
     92         fPaint.setShader(SkGradientShader::MakeLinear(points,
     93                                                       colors,
     94                                                       positions,
     95                                                       count,
     96                                                       SkShader::kClamp_TileMode,
     97                                                       0,
     98                                                       nullptr));
     99     }
    100 
    101     void onDraw(int loops, SkCanvas* canvas) override {
    102         for (int i = 0; i < loops; i++) {
    103             canvas->drawPaint(fPaint);
    104         }
    105     }
    106 
    107 private:
    108     SkString fName;
    109     int      fW;
    110     int      fH;
    111     Kind     fKind;
    112     SkPaint  fPaint;
    113 };
    114 
    115 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(100, 100, Kind::k001););
    116 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(200, 200, Kind::k001););
    117 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(300, 300, Kind::k001););
    118 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(400, 400, Kind::k001););
    119 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(500, 500, Kind::k001););
    120 
    121 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(100, 100, Kind::k011););
    122 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(200, 200, Kind::k011););
    123 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(300, 300, Kind::k011););
    124 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(400, 400, Kind::k011););
    125 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(500, 500, Kind::k011););
    126 
    127 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(100, 100, Kind::kCentered););
    128 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(200, 200, Kind::kCentered););
    129 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(300, 300, Kind::kCentered););
    130 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(400, 400, Kind::kCentered););
    131 DEF_BENCH(return new HardStopGradientBench_SpecialHardStops(500, 500, Kind::kCentered););
    132