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