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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "Benchmark.h" | 8 #include "Benchmark.h" |
9 #include "SkBlurImageFilter.h" | 9 #include "SkBlurImageFilter.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
11 #include "SkMergeImageFilter.h" | 11 #include "SkMergeImageFilter.h" |
12 | 12 |
13 enum { kNumInputs = 5 }; | 13 enum { kNumInputs = 5 }; |
14 | 14 |
15 // Exercise a blur filter connected to 5 inputs of the same merge filter. | 15 // Exercise a blur filter connected to 5 inputs of the same merge filter. |
16 // This bench shows an improvement in performance once cacheing of re-used | 16 // This bench shows an improvement in performance once cacheing of re-used |
17 // nodes is implemented, since the DAG is no longer flattened to a tree. | 17 // nodes is implemented, since the DAG is no longer flattened to a tree. |
18 | 18 |
19 class ImageFilterDAGBench : public Benchmark { | 19 class ImageFilterDAGBench : public Benchmark { |
20 public: | 20 public: |
21 ImageFilterDAGBench() { | 21 ImageFilterDAGBench() {} |
22 } | |
23 | 22 |
24 protected: | 23 protected: |
25 virtual const char* onGetName() SK_OVERRIDE { | 24 virtual const char* onGetName() SK_OVERRIDE { |
26 return "image_filter_dag"; | 25 return "image_filter_dag"; |
27 } | 26 } |
28 | 27 |
29 virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { | 28 virtual void onDraw(int loops, SkCanvas* canvas) SK_OVERRIDE { |
30 SkAutoTUnref<SkImageFilter> blur(SkBlurImageFilter::Create(20.0f, 20.0f)
); | 29 while (loops --> 0) { |
31 SkImageFilter* inputs[kNumInputs]; | 30 SkAutoTUnref<SkImageFilter> blur(SkBlurImageFilter::Create(20.0f, 20
.0f)); |
32 for (int i = 0; i < kNumInputs; ++i) { | 31 SkImageFilter* inputs[kNumInputs]; |
33 inputs[i] = blur.get(); | 32 for (int i = 0; i < kNumInputs; ++i) { |
| 33 inputs[i] = blur.get(); |
| 34 } |
| 35 SkAutoTUnref<SkImageFilter> merge(SkMergeImageFilter::Create(inputs,
kNumInputs)); |
| 36 SkPaint paint; |
| 37 paint.setImageFilter(merge); |
| 38 SkRect rect = SkRect::Make(SkIRect::MakeWH(400, 400)); |
| 39 canvas->drawRect(rect, paint); |
34 } | 40 } |
35 SkAutoTUnref<SkImageFilter> merge(SkMergeImageFilter::Create(inputs, kNu
mInputs)); | |
36 SkPaint paint; | |
37 paint.setImageFilter(merge); | |
38 SkRect rect = SkRect::Make(SkIRect::MakeWH(400, 400)); | |
39 canvas->drawRect(rect, paint); | |
40 } | 41 } |
41 | 42 |
42 private: | 43 private: |
43 typedef Benchmark INHERITED; | 44 typedef Benchmark INHERITED; |
44 }; | 45 }; |
45 | 46 |
46 DEF_BENCH(return new ImageFilterDAGBench;) | 47 DEF_BENCH(return new ImageFilterDAGBench;) |
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