77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
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/*
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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 "bench/Benchmark.h"
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#include "include/core/SkCanvas.h"
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#include "include/private/SkChecksum.h"
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#include "include/private/SkTemplates.h"
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#include "include/utils/SkRandom.h"
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#include "src/core/SkMD5.h"
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#include "src/core/SkOpts.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");
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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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(void)md5.finish();
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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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using INHERITED = Benchmark;
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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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