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      1 /*
      2  * Copyright 2012 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 "SkBenchmark.h"
      9 #include "SkBitmap.h"
     10 #include "SkCanvas.h"
     11 #include "SkColorPriv.h"
     12 #include "SkPaint.h"
     13 #include "SkRandom.h"
     14 #include "SkShader.h"
     15 #include "SkString.h"
     16 #include "SkTArray.h"
     17 
     18 
     19 class LineBench : public SkBenchmark {
     20     SkScalar    fStrokeWidth;
     21     bool        fDoAA;
     22     SkString    fName;
     23     enum {
     24         PTS = 500,
     25         N = SkBENCHLOOP(10)
     26     };
     27     SkPoint fPts[PTS];
     28 
     29 public:
     30     LineBench(void* param, SkScalar width, bool doAA) : INHERITED(param) {
     31         fStrokeWidth = width;
     32         fDoAA = doAA;
     33         fName.printf("lines_%g_%s", width, doAA ? "AA" : "BW");
     34 
     35         SkRandom rand;
     36         for (int i = 0; i < PTS; ++i) {
     37             fPts[i].set(rand.nextUScalar1() * 640, rand.nextUScalar1() * 480);
     38         }
     39     }
     40 
     41 protected:
     42     virtual const char* onGetName() SK_OVERRIDE {
     43         return fName.c_str();
     44     }
     45 
     46     virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
     47         SkPaint paint;
     48         this->setupPaint(&paint);
     49 
     50         paint.setStyle(SkPaint::kStroke_Style);
     51         paint.setAntiAlias(fDoAA);
     52         paint.setStrokeWidth(fStrokeWidth);
     53 
     54         for (int i = 0; i < N; i++) {
     55             canvas->drawPoints(SkCanvas::kLines_PointMode, PTS, fPts, paint);
     56         }
     57     }
     58 
     59 private:
     60     typedef SkBenchmark INHERITED;
     61 };
     62 
     63 DEF_BENCH(return new LineBench(p, 0,            false);)
     64 DEF_BENCH(return new LineBench(p, SK_Scalar1,   false);)
     65 DEF_BENCH(return new LineBench(p, 0,            true);)
     66 DEF_BENCH(return new LineBench(p, SK_Scalar1/2, true);)
     67 DEF_BENCH(return new LineBench(p, SK_Scalar1,   true);)
     68