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 "SkBenchmark.h"
8 #include "SkCanvas.h"
9 #include "SkPathUtils.h"
10 #include "SkRandom.h"
11 #include "SkTime.h"
12 #include "SkString.h"
13
14 #define H 16
15 #define W 16
16 #define STRIDE 2
17
18 //this function is redefined for sample, test, and bench. is there anywhere
19 // I can put it to avoid code duplcation?
fillRandomBits(int chars,char * bits)20 static void fillRandomBits( int chars, char* bits ){
21 SkRandom rand(SkTime::GetMSecs());
22
23 for (int i = 0; i < chars; ++i){
24 bits[i] = rand.nextU();
25 }
26 }
27
path_proc(char * bits,SkPath * path)28 static void path_proc(char* bits, SkPath* path) {
29 SkPathUtils::BitsToPath_Path(path, bits, H, W, STRIDE);
30 }
31
region_proc(char * bits,SkPath * path)32 static void region_proc(char* bits, SkPath* path) {
33 SkPathUtils::BitsToPath_Region(path, bits, H, W, STRIDE);
34 }
35
36 /// Emulates the mix of rects blitted by gmail during scrolling
37 class PathUtilsBench : public SkBenchmark {
38 typedef void (*Proc)(char*, SkPath*);
39
40 Proc fProc;
41 SkString fName;
42 char* bits[H * STRIDE];
43
44 public:
PathUtilsBench(Proc proc,const char name[])45 PathUtilsBench(Proc proc, const char name[]) {
46 fProc = proc;
47 fName.printf("pathUtils_%s", name);
48
49
50 }
51
52 protected:
onGetName()53 virtual const char* onGetName() { return fName.c_str(); }
54
onDraw(const int loops,SkCanvas * canvas)55 virtual void onDraw(const int loops, SkCanvas* canvas) {
56
57 for (int i = 0; i < loops; ++i){
58 //create a random 16x16 bitmap
59 fillRandomBits(H * STRIDE, (char*) &bits);
60
61 //use passed function pointer to handle it
62 SkPath path;
63 fProc( (char*) &bits, &path);
64 }
65 }
66
67 private:
68 typedef SkBenchmark INHERITED;
69 };
70
71 DEF_BENCH( return SkNEW_ARGS(PathUtilsBench, (path_proc, "path")); )
72 DEF_BENCH( return SkNEW_ARGS(PathUtilsBench, (region_proc, "region")); )
73