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| 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? |
| 20 static void fillRandomBits( int chars, char* bits ){ |
| 21 SkTime time; |
| 22 SkMWCRandom rand = SkMWCRandom( time.GetMSecs() ); |
| 23 |
| 24 for (int i = 0; i < chars; ++i){ |
| 25 bits[i] = rand.nextU(); |
| 26 } |
| 27 } |
| 28 |
| 29 static void path_proc(char* bits, SkPath* path) { |
| 30 SkPathUtils::BitsToPath_Path(path, bits, H, W, STRIDE); |
| 31 } |
| 32 |
| 33 static void region_proc(char* bits, SkPath* path) { |
| 34 SkPathUtils::BitsToPath_Region(path, bits, H, W, STRIDE); |
| 35 } |
| 36 |
| 37 /// Emulates the mix of rects blitted by gmail during scrolling |
| 38 class PathUtilsBench : public SkBenchmark { |
| 39 typedef void (*Proc)(char*, SkPath*); |
| 40 |
| 41 Proc fProc; |
| 42 int fH, fW, fStride; |
| 43 SkString fName; |
| 44 char* bits[H * STRIDE]; |
| 45 |
| 46 enum { N = SkBENCHLOOP(20) }; |
| 47 |
| 48 public: |
| 49 PathUtilsBench(void* param, Proc proc, const char name[]) : INHERITED(param)
{ |
| 50 fProc = proc; |
| 51 fName.printf("pathUtils_%s", name); |
| 52 |
| 53 |
| 54 } |
| 55 |
| 56 protected: |
| 57 virtual const char* onGetName() { return fName.c_str(); } |
| 58 |
| 59 virtual void onDraw(SkCanvas* canvas) { |
| 60 |
| 61 for (int i = 0; i < N; ++i){ |
| 62 //create a random 16x16 bitmap |
| 63 fillRandomBits(H * STRIDE, (char*) &bits); |
| 64 |
| 65 //use passed function pointer to handle it |
| 66 SkPath path; |
| 67 fProc( (char*) &bits, &path); |
| 68 } |
| 69 } |
| 70 |
| 71 private: |
| 72 typedef SkBenchmark INHERITED; |
| 73 }; |
| 74 |
| 75 static SkBenchmark* PU_path(void* p) { return SkNEW_ARGS(PathUtilsBench, (p, pat
h_proc, "path")); } |
| 76 static SkBenchmark* PU_region(void* p) { return SkNEW_ARGS(PathUtilsBench, (p, r
egion_proc, "region")); } |
| 77 |
| 78 static BenchRegistry PU_Path(PU_path); |
| 79 static BenchRegistry PU_Region(PU_region); |
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