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 #include "Benchmark.h"
8 #include "SkBitmap.h"
9 #include "SkCanvas.h"
10 #include "SkColorPriv.h"
11 #include "SkPaint.h"
12 #include "SkRandom.h"
13 #include "SkString.h"
14
draw_into_bitmap(const SkBitmap & bm)15 static void draw_into_bitmap(const SkBitmap& bm) {
16 const int w = bm.width();
17 const int h = bm.height();
18
19 SkCanvas canvas(bm);
20 SkPaint p;
21 p.setAntiAlias(true);
22 p.setColor(SK_ColorRED);
23 canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2,
24 SkIntToScalar(SkMin32(w, h))*3/8, p);
25
26 SkRect r;
27 r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h));
28 p.setStyle(SkPaint::kStroke_Style);
29 p.setStrokeWidth(SkIntToScalar(4));
30 p.setColor(SK_ColorBLUE);
31 canvas.drawRect(r, p);
32 }
33
34 /* Variants for bitmaprect
35 src : entire bitmap, subset, fractional subset
36 dst : same size as src, diff size
37 paint : filter-p
38 */
39
40 class BitmapRectBench : public Benchmark {
41 SkBitmap fBitmap;
42 bool fSlightMatrix;
43 uint8_t fAlpha;
44 SkFilterQuality fFilterQuality;
45 SkString fName;
46 SkRect fSrcR, fDstR;
47
48 static const int kWidth = 128;
49 static const int kHeight = 128;
50 public:
BitmapRectBench(U8CPU alpha,SkFilterQuality filterQuality,bool slightMatrix)51 BitmapRectBench(U8CPU alpha, SkFilterQuality filterQuality,
52 bool slightMatrix) {
53 fAlpha = SkToU8(alpha);
54 fFilterQuality = filterQuality;
55 fSlightMatrix = slightMatrix;
56
57 fBitmap.setInfo(SkImageInfo::MakeN32Premul(kWidth, kHeight));
58 }
59
60 protected:
onGetName()61 const char* onGetName() override {
62 fName.printf("bitmaprect_%02X_%sfilter_%s",
63 fAlpha,
64 kNone_SkFilterQuality == fFilterQuality ? "no" : "",
65 fSlightMatrix ? "trans" : "identity");
66 return fName.c_str();
67 }
68
onDelayedSetup()69 void onDelayedSetup() override {
70 fBitmap.allocPixels();
71 fBitmap.setAlphaType(kOpaque_SkAlphaType);
72 fBitmap.eraseColor(SK_ColorBLACK);
73 draw_into_bitmap(fBitmap);
74
75 fSrcR.iset(0, 0, kWidth, kHeight);
76 fDstR.iset(0, 0, kWidth, kHeight);
77
78 if (fSlightMatrix) {
79 // want fractional translate
80 fDstR.offset(SK_Scalar1 / 3, SK_Scalar1 * 5 / 7);
81 // want enough to create a scale matrix, but not enough to scare
82 // off our sniffer which tries to see if the matrix is "effectively"
83 // translate-only.
84 fDstR.fRight += SK_Scalar1 / (kWidth * 60);
85 }
86 }
87
88
onDraw(int loops,SkCanvas * canvas)89 void onDraw(int loops, SkCanvas* canvas) override {
90 SkRandom rand;
91
92 SkPaint paint;
93 this->setupPaint(&paint);
94 paint.setFilterQuality(fFilterQuality);
95 paint.setAlpha(fAlpha);
96
97 for (int i = 0; i < loops; i++) {
98 canvas->drawBitmapRect(fBitmap, fSrcR, fDstR, &paint,
99 SkCanvas::kStrict_SrcRectConstraint);
100 }
101 }
102
103 private:
104 typedef Benchmark INHERITED;
105 };
106
107 DEF_BENCH(return new BitmapRectBench(0xFF, kNone_SkFilterQuality, false))
108 DEF_BENCH(return new BitmapRectBench(0x80, kNone_SkFilterQuality, false))
109 DEF_BENCH(return new BitmapRectBench(0xFF, kLow_SkFilterQuality, false))
110 DEF_BENCH(return new BitmapRectBench(0x80, kLow_SkFilterQuality, false))
111
112 DEF_BENCH(return new BitmapRectBench(0xFF, kNone_SkFilterQuality, true))
113 DEF_BENCH(return new BitmapRectBench(0xFF, kLow_SkFilterQuality, true))
114