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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCanvas.h"
#include "SkCommandLineFlags.h"
#include "SkForceLinking.h"
#include "SkGraphics.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkStream.h"
#include "SkString.h"
#include "Stats.h"
#include "Timer.h"
__SK_FORCE_IMAGE_DECODER_LINKING;
DEFINE_string2(skps, r, "skps", "Directory containing SKPs to playback.");
DEFINE_int32(samples, 10, "Gather this many samples of each picture playback.");
DEFINE_bool(skr, false, "Play via SkRecord instead of SkPicture.");
DEFINE_int32(tile, 1000000000, "Simulated tile size.");
DEFINE_string(match, "", "The usual filters on file names of SKPs to bench.");
DEFINE_string(timescale, "ms", "Print times in ms, us, or ns");
DEFINE_int32(verbose, 0, "0: print min sample; "
"1: print min, mean, max and noise indication "
"2: print all samples");
static double timescale() {
if (FLAGS_timescale.contains("us")) return 1000;
if (FLAGS_timescale.contains("ns")) return 1000000;
return 1;
}
static SkPicture* rerecord(const SkPicture& src, bool skr) {
SkTileGridFactory::TileGridInfo info;
info.fTileInterval.set(FLAGS_tile, FLAGS_tile);
info.fMargin.setEmpty();
info.fOffset.setZero();
SkTileGridFactory factory(info);
SkPictureRecorder recorder;
src.playback(skr ? recorder.EXPERIMENTAL_beginRecording(src.cullRect().width(),
src.cullRect().height(),
&factory)
: recorder. DEPRECATED_beginRecording(src.cullRect().width(),
src.cullRect().height(),
&factory));
return recorder.endRecording();
}
static void bench(SkPMColor* scratch, const SkPicture& src, const char* name) {
SkAutoTUnref<const SkPicture> picture(rerecord(src, FLAGS_skr));
SkAutoTDelete<SkCanvas> canvas(
SkCanvas::NewRasterDirectN32(SkScalarCeilToInt(src.cullRect().width()),
SkScalarCeilToInt(src.cullRect().height()),
scratch,
SkScalarCeilToInt(src.cullRect().width()) * sizeof(SkPMColor)));
canvas->clipRect(SkRect::MakeWH(SkIntToScalar(FLAGS_tile), SkIntToScalar(FLAGS_tile)));
// Draw once to warm any caches. The first sample otherwise can be very noisy.
picture->playback(canvas.get());
WallTimer timer;
const double scale = timescale();
SkAutoTMalloc<double> samples(FLAGS_samples);
for (int i = 0; i < FLAGS_samples; i++) {
// We assume timer overhead (typically, ~30ns) is insignificant
// compared to draw runtime (at least ~100us, usually several ms).
timer.start();
picture->playback(canvas.get());
timer.end();
samples[i] = timer.fWall * scale;
}
Stats stats(samples.get(), FLAGS_samples);
if (FLAGS_verbose == 0) {
printf("%g\t%s\n", stats.min, name);
} else if (FLAGS_verbose == 1) {
// Get a rough idea of how noisy the measurements were.
const double noisePercent = 100 * sqrt(stats.var) / stats.mean;
printf("%g\t%g\t%g\t±%.0f%%\t%s\n", stats.min, stats.mean, stats.max, noisePercent, name);
} else if (FLAGS_verbose == 2) {
printf("%s", name);
for (int i = 0; i < FLAGS_samples; i++) {
printf("\t%g", samples[i]);
}
printf("\n");
}
}
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkCommandLineFlags::Parse(argc, argv);
SkAutoGraphics autoGraphics;
// We share a single scratch bitmap among benches to reduce the profile noise from allocation.
static const int kMaxArea = 209825221; // tabl_mozilla is this big.
SkAutoTMalloc<SkPMColor> scratch(kMaxArea);
SkOSFile::Iter it(FLAGS_skps[0], ".skp");
SkString filename;
bool failed = false;
while (it.next(&filename)) {
if (SkCommandLineFlags::ShouldSkip(FLAGS_match, filename.c_str())) {
continue;
}
const SkString path = SkOSPath::Join(FLAGS_skps[0], filename.c_str());
SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path.c_str()));
if (!stream) {
SkDebugf("Could not read %s.\n", path.c_str());
failed = true;
continue;
}
SkAutoTUnref<const SkPicture> src(SkPicture::CreateFromStream(stream));
if (!src) {
SkDebugf("Could not read %s as an SkPicture.\n", path.c_str());
failed = true;
continue;
}
if (SkScalarCeilToInt(src->cullRect().width()) *
SkScalarCeilToInt(src->cullRect().height()) > kMaxArea) {
SkDebugf("%s (%f,%f,%f,%f) is larger than hardcoded scratch bitmap (%dpx).\n",
path.c_str(),
src->cullRect().fLeft, src->cullRect().fTop,
src->cullRect().fRight, src->cullRect().fBottom,
kMaxArea);
failed = true;
continue;
}
bench(scratch.get(), *src, filename.c_str());
}
return failed ? 1 : 0;
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif
|
