1/*
2 * Copyright 2013 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 "SkBitmapSource.h"
10#include "SkCanvas.h"
11#include "SkMergeImageFilter.h"
12
13#define FILTER_WIDTH_SMALL  SkIntToScalar(32)
14#define FILTER_HEIGHT_SMALL SkIntToScalar(32)
15#define FILTER_WIDTH_LARGE  SkIntToScalar(256)
16#define FILTER_HEIGHT_LARGE SkIntToScalar(256)
17
18class MergeBench : public Benchmark {
19public:
20    MergeBench(bool small) : fIsSmall(small), fInitialized(false) { }
21
22protected:
23    virtual const char* onGetName() SK_OVERRIDE {
24        return fIsSmall ? "merge_small" : "merge_large";
25    }
26
27    virtual void onPreDraw() SK_OVERRIDE {
28        if (!fInitialized) {
29            make_bitmap();
30            make_checkerboard();
31            fInitialized = true;
32        }
33    }
34
35    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
36        SkRect r = fIsSmall ? SkRect::MakeWH(FILTER_WIDTH_SMALL, FILTER_HEIGHT_SMALL) :
37                              SkRect::MakeWH(FILTER_WIDTH_LARGE, FILTER_HEIGHT_LARGE);
38        SkPaint paint;
39        paint.setImageFilter(mergeBitmaps())->unref();
40        for (int i = 0; i < loops; i++) {
41            canvas->drawRect(r, paint);
42        }
43    }
44
45private:
46    SkImageFilter* mergeBitmaps() {
47        SkImageFilter* first = SkBitmapSource::Create(fCheckerboard);
48        SkImageFilter* second = SkBitmapSource::Create(fBitmap);
49        SkAutoUnref aur0(first);
50        SkAutoUnref aur1(second);
51        return SkMergeImageFilter::Create(first, second);
52    }
53
54    void make_bitmap() {
55        fBitmap.allocN32Pixels(80, 80);
56        SkCanvas canvas(fBitmap);
57        canvas.clear(0x00000000);
58        SkPaint paint;
59        paint.setAntiAlias(true);
60        paint.setColor(0xFF884422);
61        paint.setTextSize(SkIntToScalar(96));
62        const char* str = "g";
63        canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint);
64    }
65
66    void make_checkerboard() {
67        fCheckerboard.allocN32Pixels(80, 80);
68        SkCanvas canvas(fCheckerboard);
69        canvas.clear(0x00000000);
70        SkPaint darkPaint;
71        darkPaint.setColor(0xFF804020);
72        SkPaint lightPaint;
73        lightPaint.setColor(0xFF244484);
74        for (int y = 0; y < 80; y += 16) {
75            for (int x = 0; x < 80; x += 16) {
76                canvas.save();
77                canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
78                canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
79                canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
80                canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
81                canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
82                canvas.restore();
83            }
84        }
85    }
86
87    bool fIsSmall;
88    bool fInitialized;
89    SkBitmap fBitmap, fCheckerboard;
90
91    typedef Benchmark INHERITED;
92};
93
94///////////////////////////////////////////////////////////////////////////////
95
96DEF_BENCH( return new MergeBench(true); )
97DEF_BENCH( return new MergeBench(false); )
98