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 "SkCanvas.h"
10#include "SkImageSource.h"
11#include "SkMergeImageFilter.h"
12#include "SkSurface.h"
13
14#define FILTER_WIDTH_SMALL  SkIntToScalar(32)
15#define FILTER_HEIGHT_SMALL SkIntToScalar(32)
16#define FILTER_WIDTH_LARGE  SkIntToScalar(256)
17#define FILTER_HEIGHT_LARGE SkIntToScalar(256)
18
19class MergeBench : public Benchmark {
20public:
21    MergeBench(bool small) : fIsSmall(small), fInitialized(false) { }
22
23protected:
24    const char* onGetName() override {
25        return fIsSmall ? "merge_small" : "merge_large";
26    }
27
28    void onDelayedSetup() override {
29        if (!fInitialized) {
30            make_bitmap();
31            make_checkerboard();
32            fInitialized = true;
33        }
34    }
35
36    void onDraw(int loops, SkCanvas* canvas) override {
37        SkRect r = fIsSmall ? SkRect::MakeWH(FILTER_WIDTH_SMALL, FILTER_HEIGHT_SMALL) :
38                              SkRect::MakeWH(FILTER_WIDTH_LARGE, FILTER_HEIGHT_LARGE);
39        SkPaint paint;
40        paint.setImageFilter(mergeBitmaps())->unref();
41        for (int i = 0; i < loops; i++) {
42            canvas->drawRect(r, paint);
43        }
44    }
45
46private:
47    SkImageFilter* mergeBitmaps() {
48        SkAutoTUnref<SkImageFilter> first(SkImageSource::Create(fCheckerboard));
49        SkAutoTUnref<SkImageFilter> second(SkImageSource::Create(fImage));
50        return SkMergeImageFilter::Create(first, second);
51    }
52
53    void make_bitmap() {
54        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(80, 80));
55        surface->getCanvas()->clear(0x00000000);
56        SkPaint paint;
57        paint.setAntiAlias(true);
58        paint.setColor(0xFF884422);
59        paint.setTextSize(SkIntToScalar(96));
60        const char* str = "g";
61        surface->getCanvas()->drawText(str, strlen(str), 15, 55, paint);
62        fImage.reset(surface->newImageSnapshot());
63    }
64
65    void make_checkerboard() {
66        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(80, 80));
67        SkCanvas* canvas = surface->getCanvas();
68        canvas->clear(0x00000000);
69        SkPaint darkPaint;
70        darkPaint.setColor(0xFF804020);
71        SkPaint lightPaint;
72        lightPaint.setColor(0xFF244484);
73        for (int y = 0; y < 80; y += 16) {
74            for (int x = 0; x < 80; x += 16) {
75                canvas->save();
76                canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
77                canvas->drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
78                canvas->drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
79                canvas->drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
80                canvas->drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
81                canvas->restore();
82            }
83        }
84
85        fCheckerboard.reset(surface->newImageSnapshot());
86    }
87
88    bool fIsSmall;
89    bool fInitialized;
90    SkAutoTUnref<SkImage> fImage, fCheckerboard;
91
92    typedef Benchmark INHERITED;
93};
94
95///////////////////////////////////////////////////////////////////////////////
96
97DEF_BENCH( return new MergeBench(true); )
98DEF_BENCH( return new MergeBench(false); )
99