commit-bot@chromium.org | d7aaf60 | 2013-04-01 12:51:34 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2013 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 | |
| 9 | #include "SkBenchmark.h" |
| 10 | #include "SkCanvas.h" |
| 11 | #include "SkPaint.h" |
| 12 | #include "SkRandom.h" |
| 13 | #include "SkString.h" |
| 14 | #include "SkXfermode.h" |
| 15 | |
| 16 | // Benchmark that draws non-AA rects with an SkXfermode::Mode |
| 17 | class XfermodeBench : public SkBenchmark { |
| 18 | public: |
| 19 | XfermodeBench(void* param, SkXfermode::Mode mode) : SkBenchmark(param) { |
| 20 | fXfermode.reset(SkXfermode::Create(mode)); |
| 21 | SkASSERT(NULL != fXfermode.get() || SkXfermode::kSrcOver_Mode == mode); |
| 22 | fName.printf("Xfermode_%s", SkXfermode::ModeName(mode)); |
| 23 | } |
| 24 | |
| 25 | protected: |
| 26 | virtual const char* onGetName() SK_OVERRIDE { return fName.c_str(); } |
| 27 | |
| 28 | virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 29 | SkISize size = canvas->getDeviceSize(); |
| 30 | SkMWCRandom random; |
| 31 | for (int i = 0; i < kNumRects; ++i) { |
| 32 | SkPaint paint; |
| 33 | paint.setXfermode(fXfermode.get()); |
| 34 | paint.setColor(random.nextU()); |
| 35 | SkScalar w = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize)); |
| 36 | SkScalar h = random.nextRangeScalar(SkIntToScalar(kMinSize), SkIntToScalar(kMaxSize)); |
| 37 | SkRect rect = SkRect::MakeXYWH( |
| 38 | random.nextUScalar1() * (size.fWidth - w), |
| 39 | random.nextUScalar1() * (size.fHeight - h), |
| 40 | w, |
| 41 | h |
| 42 | ); |
| 43 | canvas->drawRect(rect, paint); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | private: |
| 48 | enum { |
| 49 | kNumRects = SkBENCHLOOP(1000), |
| 50 | kMinSize = 10, |
| 51 | kMaxSize = 400, |
| 52 | }; |
| 53 | SkAutoTUnref<SkXfermode> fXfermode; |
| 54 | SkString fName; |
skia.committer@gmail.com | 05a2ee0 | 2013-04-02 07:01:34 +0000 | [diff] [blame] | 55 | |
commit-bot@chromium.org | d7aaf60 | 2013-04-01 12:51:34 +0000 | [diff] [blame] | 56 | typedef SkBenchmark INHERITED; |
| 57 | }; |
| 58 | |
| 59 | ////////////////////////////////////////////////////////////////////////////// |
| 60 | |
| 61 | |
| 62 | // These modes were chosen because they are expected to be successively harder for the GPU. |
| 63 | // kSrc can disable blending, kSrcOver cannot, kDarken requires reading the dst pixel in the shader. |
| 64 | static SkBenchmark* Fact0(void* p) { return new XfermodeBench(p, SkXfermode::kSrc_Mode); } |
| 65 | static SkBenchmark* Fact1(void* p) { return new XfermodeBench(p, SkXfermode::kSrcOver_Mode); } |
| 66 | static SkBenchmark* Fact2(void* p) { return new XfermodeBench(p, SkXfermode::kDarken_Mode); } |
| 67 | |
| 68 | static BenchRegistry gReg0(Fact0); |
| 69 | static BenchRegistry gReg1(Fact1); |
| 70 | static BenchRegistry gReg2(Fact2); |