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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 "SkConfig8888.h" | |
12 | |
13 class PremulAndUnpremulAlphaOpsBench : public SkBenchmark { | |
14 public: | |
15 PremulAndUnpremulAlphaOpsBench(void* param, SkCanvas::Config8888 config, con st char* name) | |
16 : INHERITED(param) { | |
17 unPremulConfig = config; | |
18 benchName = name; | |
19 } | |
20 | |
21 protected: | |
22 virtual const char* onGetName() SK_OVERRIDE { | |
23 return benchName; | |
24 } | |
25 | |
26 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { | |
27 canvas->clear(SK_ColorBLACK); | |
28 SkISize size = canvas->getDeviceSize(); | |
29 | |
30 static const int kLoopCount = SkBENCHLOOP(10); | |
31 for (int loop = 0; loop < kLoopCount; ++loop) { | |
32 SkBitmap bmp1; | |
33 bmp1.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.heigh t()); | |
34 bmp1.allocPixels(); | |
bsalomon
2013/06/10 13:48:22
Can't all this setup of bmp1 be done outside the l
Jun Jiang
2013/06/11 14:46:20
Yes, the setup of bmp1 can be done outside of the
| |
35 SkAutoLockPixels alp(bmp1); | |
36 uint32_t* pixels = reinterpret_cast<uint32_t*>(bmp1.getPixels()); | |
37 for (int h = 0; h < size.height(); ++h) { | |
38 for (int w = 0; w < size.width(); ++w) | |
39 pixels[h * size.width() + w] = SkPackConfig8888(unPremulConf ig, h & 0xFF, w & 0xFF, w & 0xFF, w & 0xFF); | |
40 } | |
41 // Unpremul -> Premul | |
42 canvas->writePixels(bmp1, 0, 0, unPremulConfig); | |
43 | |
44 SkBitmap bmp2; | |
45 bmp2.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.heigh t()); | |
46 // Premul -> Unpremul | |
47 canvas->readPixels(&bmp2, 0, 0, unPremulConfig); | |
48 } | |
49 } | |
50 | |
51 private: | |
52 SkCanvas::Config8888 unPremulConfig; | |
53 const char* benchName; | |
54 typedef SkBenchmark INHERITED; | |
55 }; | |
56 | |
57 static SkBenchmark* fact0(void* p) { return new PremulAndUnpremulAlphaOpsBench(p , SkCanvas::kRGBA_Unpremul_Config8888, "premul_and_unpremul_alpha_RGBA8888"); } | |
58 static SkBenchmark* fact1(void* p) { return new PremulAndUnpremulAlphaOpsBench(p , SkCanvas::kNative_Unpremul_Config8888, "premul_and_unpremul_alpha_Native8888") ; } | |
59 | |
60 static BenchRegistry gReg0(fact0); | |
61 static BenchRegistry gReg1(fact1); | |
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