blob: 9dd87c348153351b5071c30b8227b732d37d88cf (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/*
* 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 "SkMD5.h"
#include "SkRandom.h"
#include "SkSHA1.h"
#include "SkTemplates.h"
enum ChecksumType {
kChecksum_ChecksumType,
kMD5_ChecksumType,
kSHA1_ChecksumType,
kMurmur3_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:
virtual const char* onGetName() {
switch (fType) {
case kChecksum_ChecksumType: return "compute_checksum";
case kMD5_ChecksumType: return "compute_md5";
case kSHA1_ChecksumType: return "compute_sha1";
case kMurmur3_ChecksumType: return "compute_murmur3";
default: SK_CRASH(); return "";
}
}
virtual void onDraw(const int loops, SkCanvas*) {
switch (fType) {
case kChecksum_ChecksumType: {
for (int i = 0; i < loops; i++) {
volatile uint32_t result = SkChecksum::Compute(fData, sizeof(fData));
sk_ignore_unused_variable(result);
}
} break;
case kMD5_ChecksumType: {
for (int i = 0; i < loops; i++) {
SkMD5 md5;
md5.update(reinterpret_cast<uint8_t*>(fData), sizeof(fData));
SkMD5::Digest digest;
md5.finish(digest);
}
} break;
case kSHA1_ChecksumType: {
for (int i = 0; i < loops; i++) {
SkSHA1 sha1;
sha1.update(reinterpret_cast<uint8_t*>(fData), sizeof(fData));
SkSHA1::Digest digest;
sha1.finish(digest);
}
} break;
case kMurmur3_ChecksumType: {
for (int i = 0; i < loops; i++) {
volatile uint32_t result = SkChecksum::Murmur3(fData, sizeof(fData));
sk_ignore_unused_variable(result);
}
}break;
}
}
private:
typedef Benchmark INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
DEF_BENCH( return new ComputeChecksumBench(kChecksum_ChecksumType); )
DEF_BENCH( return new ComputeChecksumBench(kMD5_ChecksumType); )
DEF_BENCH( return new ComputeChecksumBench(kSHA1_ChecksumType); )
DEF_BENCH( return new ComputeChecksumBench(kMurmur3_ChecksumType); )
|
