FontScalerBench.cpp revision f7834221ac5342a3446b9b299398ea3ff7976946 
1/*
2 * Copyright 2011 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#include "SkCanvas.h"
10#include "SkGraphics.h"
11#include "SkPaint.h"
12#include "SkRandom.h"
13#include "SkString.h"
14
15class FontScalerBench : public Benchmark {
16    SkString fName;
17    SkString fText;
18    bool     fDoLCD;
19public:
20    FontScalerBench(bool doLCD)  {
21        fName.printf("fontscaler_%s", doLCD ? "lcd" : "aa");
22        fText.set("abcdefghijklmnopqrstuvwxyz01234567890");
23        fDoLCD = doLCD;
24    }
25
26protected:
27    virtual const char* onGetName() { return fName.c_str(); }
28    virtual void onDraw(const int loops, SkCanvas* canvas) {
29        SkPaint paint;
30        this->setupPaint(&paint);
31        paint.setLCDRenderText(fDoLCD);
32
33        for (int i = 0; i < loops; i++) {
34            // this is critical - we want to time the creation process, so we
35            // explicitly flush our cache before each run
36            SkGraphics::PurgeFontCache();
37
38            for (int ps = 9; ps <= 24; ps += 2) {
39                paint.setTextSize(SkIntToScalar(ps));
40                canvas->drawText(fText.c_str(), fText.size(),
41                        0, SkIntToScalar(20), paint);
42            }
43        }
44    }
45private:
46    typedef Benchmark INHERITED;
47};
48
49///////////////////////////////////////////////////////////////////////////////
50
51DEF_BENCH( return SkNEW_ARGS(FontScalerBench, (false)); )
52DEF_BENCH( return SkNEW_ARGS(FontScalerBench, (true)); )
53