1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #include "Benchmark.h"
9 #include "SkBitmap.h"
10 #include "SkCanvas.h"
11 #include "SkColorPriv.h"
12 #include "SkPaint.h"
13 #include "SkRandom.h"
14 #include "SkString.h"
15
draw_into_bitmap(const SkBitmap & bm)16 static void draw_into_bitmap(const SkBitmap& bm) {
17 const int w = bm.width();
18 const int h = bm.height();
19
20 SkCanvas canvas(bm);
21 SkPaint p;
22 p.setAntiAlias(true);
23 p.setColor(SK_ColorRED);
24 canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2,
25 SkIntToScalar(SkMin32(w, h))*3/8, p);
26
27 SkRect r;
28 r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h));
29 p.setStyle(SkPaint::kStroke_Style);
30 p.setStrokeWidth(SkIntToScalar(4));
31 p.setColor(SK_ColorBLUE);
32 canvas.drawRect(r, p);
33 }
34
35 /* Variants for bitmaprect
36 src : entire bitmap, subset, fractional subset
37 dst : same size as src, diff size
38 paint : filter-p
39 */
40
41 class BitmapRectBench : public Benchmark {
42 SkBitmap fBitmap;
43 bool fSlightMatrix;
44 uint8_t fAlpha;
45 SkFilterQuality fFilterQuality;
46 SkString fName;
47 SkRect fSrcR, fDstR;
48
49 static const int kWidth = 128;
50 static const int kHeight = 128;
51 public:
BitmapRectBench(U8CPU alpha,SkFilterQuality filterQuality,bool slightMatrix)52 BitmapRectBench(U8CPU alpha, SkFilterQuality filterQuality,
53 bool slightMatrix) {
54 fAlpha = SkToU8(alpha);
55 fFilterQuality = filterQuality;
56 fSlightMatrix = slightMatrix;
57
58 fBitmap.setInfo(SkImageInfo::MakeN32Premul(kWidth, kHeight));
59 }
60
61 protected:
onGetName()62 const char* onGetName() override {
63 fName.printf("bitmaprect_%02X_%sfilter_%s",
64 fAlpha,
65 kNone_SkFilterQuality == fFilterQuality ? "no" : "",
66 fSlightMatrix ? "trans" : "identity");
67 return fName.c_str();
68 }
69
onDelayedSetup()70 void onDelayedSetup() override {
71 fBitmap.allocPixels();
72 fBitmap.setAlphaType(kOpaque_SkAlphaType);
73 fBitmap.eraseColor(SK_ColorBLACK);
74 draw_into_bitmap(fBitmap);
75
76 fSrcR.iset(0, 0, kWidth, kHeight);
77 fDstR.iset(0, 0, kWidth, kHeight);
78
79 if (fSlightMatrix) {
80 // want fractional translate
81 fDstR.offset(SK_Scalar1 / 3, SK_Scalar1 * 5 / 7);
82 // want enough to create a scale matrix, but not enough to scare
83 // off our sniffer which tries to see if the matrix is "effectively"
84 // translate-only.
85 fDstR.fRight += SK_Scalar1 / (kWidth * 60);
86 }
87 }
88
89
onDraw(int loops,SkCanvas * canvas)90 void onDraw(int loops, SkCanvas* canvas) override {
91 SkRandom rand;
92
93 SkPaint paint;
94 this->setupPaint(&paint);
95 paint.setFilterQuality(fFilterQuality);
96 paint.setAlpha(fAlpha);
97
98 for (int i = 0; i < loops; i++) {
99 canvas->drawBitmapRect(fBitmap, fSrcR, fDstR, &paint,
100 SkCanvas::kStrict_SrcRectConstraint);
101 }
102 }
103
104 private:
105 typedef Benchmark INHERITED;
106 };
107
108 DEF_BENCH(return new BitmapRectBench(0xFF, kNone_SkFilterQuality, false))
109 DEF_BENCH(return new BitmapRectBench(0x80, kNone_SkFilterQuality, false))
110 DEF_BENCH(return new BitmapRectBench(0xFF, kLow_SkFilterQuality, false))
111 DEF_BENCH(return new BitmapRectBench(0x80, kLow_SkFilterQuality, false))
112
113 DEF_BENCH(return new BitmapRectBench(0xFF, kNone_SkFilterQuality, true))
114 DEF_BENCH(return new BitmapRectBench(0xFF, kLow_SkFilterQuality, true))
115