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77 lines
2.0 KiB
77 lines
2.0 KiB
/* |
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* Copyright 2012 Google Inc. |
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* |
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* Use of this source code is governed by a BSD-style license that can be |
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* found in the LICENSE file. |
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*/ |
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#include "Benchmark.h" |
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#include "SkCanvas.h" |
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#include "SkChecksum.h" |
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#include "SkOpts.h" |
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#include "SkMD5.h" |
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#include "SkRandom.h" |
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#include "SkTemplates.h" |
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enum ChecksumType { |
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kMD5_ChecksumType, |
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kHash_ChecksumType, |
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}; |
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class ComputeChecksumBench : public Benchmark { |
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enum { |
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U32COUNT = 256, |
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SIZE = U32COUNT * 4, |
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}; |
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uint32_t fData[U32COUNT]; |
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ChecksumType fType; |
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public: |
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ComputeChecksumBench(ChecksumType type) : fType(type) { |
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SkRandom rand; |
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for (int i = 0; i < U32COUNT; ++i) { |
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fData[i] = rand.nextU(); |
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} |
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} |
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bool isSuitableFor(Backend backend) override { |
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return backend == kNonRendering_Backend; |
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} |
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protected: |
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const char* onGetName() override { |
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switch (fType) { |
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case kMD5_ChecksumType: return "compute_md5"; |
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case kHash_ChecksumType: return "compute_hash"; |
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default: SK_ABORT("Invalid Type"); return ""; |
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} |
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} |
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void onDraw(int loops, SkCanvas*) override { |
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switch (fType) { |
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case kMD5_ChecksumType: { |
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for (int i = 0; i < loops; i++) { |
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SkMD5 md5; |
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md5.write(fData, sizeof(fData)); |
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SkMD5::Digest digest; |
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md5.finish(digest); |
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} |
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} break; |
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case kHash_ChecksumType: { |
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for (int i = 0; i < loops; i++) { |
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volatile uint32_t result = SkOpts::hash(fData, sizeof(fData)); |
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sk_ignore_unused_variable(result); |
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} |
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}break; |
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} |
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} |
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private: |
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typedef Benchmark INHERITED; |
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}; |
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/////////////////////////////////////////////////////////////////////////////// |
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DEF_BENCH( return new ComputeChecksumBench(kMD5_ChecksumType); ) |
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DEF_BENCH( return new ComputeChecksumBench(kHash_ChecksumType); )
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