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 "bench/Benchmark.h"
9 #include "include/core/SkBitmap.h"
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkColorPriv.h"
12 #include "include/core/SkPaint.h"
13 #include "include/core/SkString.h"
14 #include "include/private/SkTo.h"
15 #include "include/utils/SkRandom.h"
16
draw_into_bitmap(const SkBitmap & bm)17 static void draw_into_bitmap(const SkBitmap& bm) {
18 const int w = bm.width();
19 const int h = bm.height();
20
21 SkCanvas canvas(bm);
22 SkPaint p;
23 p.setAntiAlias(true);
24 p.setColor(SK_ColorRED);
25 canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2,
26 SkIntToScalar(std::min(w, h))*3/8, p);
27
28 SkRect r;
29 r.setWH(SkIntToScalar(w), SkIntToScalar(h));
30 p.setStyle(SkPaint::kStroke_Style);
31 p.setStrokeWidth(SkIntToScalar(4));
32 p.setColor(SK_ColorBLUE);
33 canvas.drawRect(r, p);
34 }
35
36 /* Variants for bitmaprect
37 src : entire bitmap, subset, fractional subset
38 dst : same size as src, diff size
39 paint : filter-p
40 */
41
42 class BitmapRectBench : public Benchmark {
43 SkBitmap fBitmap;
44 bool fSlightMatrix;
45 uint8_t fAlpha;
46 SkFilterQuality fFilterQuality;
47 SkString fName;
48 SkRect fSrcR, fDstR;
49
50 static const int kWidth = 128;
51 static const int kHeight = 128;
52 public:
BitmapRectBench(U8CPU alpha,SkFilterQuality filterQuality,bool slightMatrix)53 BitmapRectBench(U8CPU alpha, SkFilterQuality filterQuality,
54 bool slightMatrix) {
55 fAlpha = SkToU8(alpha);
56 fFilterQuality = filterQuality;
57 fSlightMatrix = slightMatrix;
58
59 fBitmap.setInfo(SkImageInfo::MakeN32Premul(kWidth, kHeight));
60 }
61
62 protected:
onGetName()63 const char* onGetName() override {
64 fName.printf("bitmaprect_%02X_%sfilter_%s",
65 fAlpha,
66 kNone_SkFilterQuality == fFilterQuality ? "no" : "",
67 fSlightMatrix ? "trans" : "identity");
68 return fName.c_str();
69 }
70
onDelayedSetup()71 void onDelayedSetup() override {
72 fBitmap.allocPixels();
73 fBitmap.setAlphaType(kOpaque_SkAlphaType);
74 fBitmap.eraseColor(SK_ColorBLACK);
75 draw_into_bitmap(fBitmap);
76
77 fSrcR.setWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
78 fDstR.setWH(SkIntToScalar(kWidth), SkIntToScalar(kHeight));
79
80 if (fSlightMatrix) {
81 // want fractional translate
82 fDstR.offset(SK_Scalar1 / 3, SK_Scalar1 * 5 / 7);
83 // want enough to create a scale matrix, but not enough to scare
84 // off our sniffer which tries to see if the matrix is "effectively"
85 // translate-only.
86 fDstR.fRight += SK_Scalar1 / (kWidth * 60);
87 }
88 }
89
90
onDraw(int loops,SkCanvas * canvas)91 void onDraw(int loops, SkCanvas* canvas) override {
92 SkRandom rand;
93
94 SkPaint paint;
95 this->setupPaint(&paint);
96 paint.setFilterQuality(fFilterQuality);
97 paint.setAlpha(fAlpha);
98
99 for (int i = 0; i < loops; i++) {
100 canvas->drawBitmapRect(fBitmap, fSrcR, fDstR, &paint,
101 SkCanvas::kStrict_SrcRectConstraint);
102 }
103 }
104
105 private:
106 typedef Benchmark INHERITED;
107 };
108
109 DEF_BENCH(return new BitmapRectBench(0xFF, kNone_SkFilterQuality, false))
110 DEF_BENCH(return new BitmapRectBench(0x80, kNone_SkFilterQuality, false))
111 DEF_BENCH(return new BitmapRectBench(0xFF, kLow_SkFilterQuality, false))
112 DEF_BENCH(return new BitmapRectBench(0x80, kLow_SkFilterQuality, false))
113
114 DEF_BENCH(return new BitmapRectBench(0xFF, kNone_SkFilterQuality, true))
115 DEF_BENCH(return new BitmapRectBench(0xFF, kLow_SkFilterQuality, true))
116