junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 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 "SkChecksum.h" |
reed@google.com | 142e1fe | 2012-07-09 17:44:44 +0000 | [diff] [blame^] | 10 | #include "SkRandom.h" |
junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 11 | |
| 12 | class ComputeChecksumBench : public SkBenchmark { |
reed@google.com | fc8581b | 2012-07-09 17:40:48 +0000 | [diff] [blame] | 13 | enum { |
reed@google.com | 142e1fe | 2012-07-09 17:44:44 +0000 | [diff] [blame^] | 14 | U32COUNT = 256, |
| 15 | SIZE = U32COUNT * 4, |
reed@google.com | fc8581b | 2012-07-09 17:40:48 +0000 | [diff] [blame] | 16 | N = SkBENCHLOOP(100000), |
| 17 | }; |
reed@google.com | 142e1fe | 2012-07-09 17:44:44 +0000 | [diff] [blame^] | 18 | uint32_t fData[U32COUNT]; |
| 19 | |
| 20 | public: |
| 21 | ComputeChecksumBench(void* param) : INHERITED(param) { |
| 22 | SkRandom rand; |
| 23 | for (int i = 0; i < U32COUNT; ++i) { |
| 24 | fData[i] = rand.nextU(); |
| 25 | } |
| 26 | } |
| 27 | |
junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 28 | protected: |
| 29 | virtual const char* onGetName() { |
reed@google.com | 142e1fe | 2012-07-09 17:44:44 +0000 | [diff] [blame^] | 30 | return "compute_checksum"; |
junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 31 | } |
| 32 | |
| 33 | virtual void onDraw(SkCanvas* canvas) { |
reed@google.com | 142e1fe | 2012-07-09 17:44:44 +0000 | [diff] [blame^] | 34 | for (int i = 0; i < N; i++) { |
| 35 | volatile uint32_t result = SkChecksum::Compute(fData, sizeof(fData)); |
| 36 | } |
junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 37 | } |
| 38 | |
junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 39 | private: |
| 40 | typedef SkBenchmark INHERITED; |
| 41 | }; |
| 42 | |
junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 43 | /////////////////////////////////////////////////////////////////////////////// |
| 44 | |
reed@google.com | 142e1fe | 2012-07-09 17:44:44 +0000 | [diff] [blame^] | 45 | static SkBenchmark* Fact0(void* p) { return new ComputeChecksumBench(p); } |
junov@chromium.org | ef76060 | 2012-06-27 20:03:16 +0000 | [diff] [blame] | 46 | |
| 47 | static BenchRegistry gReg0(Fact0); |