MergeBench.cpp revision 1f2f338e23789f3eef168dcbd8171a28820ba6c1 
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#include "SkBenchmark.h"
8#include "SkBitmapDevice.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 SkBenchmark {
19public:
20    MergeBench(void* param, bool small) : INHERITED(param), fIsSmall(small), fInitialized(false) {
21    }
22
23protected:
24    virtual const char* onGetName() SK_OVERRIDE {
25        return fIsSmall ? "merge_small" : "merge_large";
26    }
27
28    virtual void onPreDraw() SK_OVERRIDE {
29        if (!fInitialized) {
30            make_bitmap();
31            make_checkerboard();
32            fInitialized = true;
33        }
34    }
35
36    virtual void onDraw(SkCanvas* canvas) SK_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        canvas->drawRect(r, paint);
42    }
43
44private:
45    SkImageFilter* mergeBitmaps() {
46        SkImageFilter* first = new SkBitmapSource(fCheckerboard);
47        SkImageFilter* second = new SkBitmapSource(fBitmap);
48        SkAutoUnref aur0(first);
49        SkAutoUnref aur1(second);
50        return new SkMergeImageFilter(first, second);
51    }
52
53    void make_bitmap() {
54        fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
55        fBitmap.allocPixels();
56        SkBitmapDevice device(fBitmap);
57        SkCanvas canvas(&device);
58        canvas.clear(0x00000000);
59        SkPaint paint;
60        paint.setAntiAlias(true);
61        paint.setColor(0xFF884422);
62        paint.setTextSize(SkIntToScalar(96));
63        const char* str = "g";
64        canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint);
65    }
66
67    void make_checkerboard() {
68        fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
69        fCheckerboard.allocPixels();
70        SkBitmapDevice device(fCheckerboard);
71        SkCanvas canvas(&device);
72        canvas.clear(0x00000000);
73        SkPaint darkPaint;
74        darkPaint.setColor(0xFF804020);
75        SkPaint lightPaint;
76        lightPaint.setColor(0xFF244484);
77        for (int y = 0; y < 80; y += 16) {
78            for (int x = 0; x < 80; x += 16) {
79                canvas.save();
80                canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
81                canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
82                canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
83                canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
84                canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
85                canvas.restore();
86            }
87        }
88    }
89
90    bool fIsSmall;
91    bool fInitialized;
92    SkBitmap fBitmap, fCheckerboard;
93
94    typedef SkBenchmark INHERITED;
95};
96
97///////////////////////////////////////////////////////////////////////////////
98
99DEF_BENCH( return new MergeBench(p, true); )
100DEF_BENCH( return new MergeBench(p, false); )
101