1 /*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "Benchmark.h"
9 #include "Resources.h"
10 #include "SkBitmap.h"
11 #include "SkJpegEncoder.h"
12 #include "SkPngEncoder.h"
13 #include "SkWebpEncoder.h"
14 #include "SkStream.h"
15
16 // Like other Benchmark subclasses, Encoder benchmarks are run by:
17 // nanobench --match ^Encode_
18 //
19 // There is no corresponding DecodeBench class. Decoder benchmarks are run by:
20 // nanobench --benchType skcodec --images your_images_directory
21
22 class EncodeBench : public Benchmark {
23 public:
24 using Encoder = bool (*)(SkWStream*, const SkPixmap&);
EncodeBench(const char * filename,Encoder encoder,const char * encoderName)25 EncodeBench(const char* filename, Encoder encoder, const char* encoderName)
26 : fSourceFilename(filename)
27 , fEncoder(encoder)
28 , fName(SkStringPrintf("Encode_%s_%s", filename, encoderName)) {}
29
isSuitableFor(Backend backend)30 bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
31
onGetName()32 const char* onGetName() override { return fName.c_str(); }
33
onDelayedSetup()34 void onDelayedSetup() override {
35 SkAssertResult(GetResourceAsBitmap(fSourceFilename, &fBitmap));
36 }
37
onDraw(int loops,SkCanvas *)38 void onDraw(int loops, SkCanvas*) override {
39 while (loops-- > 0) {
40 SkPixmap pixmap;
41 SkAssertResult(fBitmap.peekPixels(&pixmap));
42 SkNullWStream dst;
43 SkAssertResult(fEncoder(&dst, pixmap));
44 SkASSERT(dst.bytesWritten() > 0);
45 }
46 }
47
48 private:
49 const char* fSourceFilename;
50 Encoder fEncoder;
51 SkString fName;
52 SkBitmap fBitmap;
53 };
54
encode_jpeg(SkWStream * dst,const SkPixmap & src)55 static bool encode_jpeg(SkWStream* dst, const SkPixmap& src) {
56 SkJpegEncoder::Options opts;
57 opts.fQuality = 90;
58 return SkJpegEncoder::Encode(dst, src, opts);
59 }
60
encode_webp_lossy(SkWStream * dst,const SkPixmap & src)61 static bool encode_webp_lossy(SkWStream* dst, const SkPixmap& src) {
62 SkWebpEncoder::Options opts;
63 opts.fCompression = SkWebpEncoder::Compression::kLossy;
64 opts.fQuality = 90;
65 return SkWebpEncoder::Encode(dst, src, opts);
66 }
67
encode_webp_lossless(SkWStream * dst,const SkPixmap & src)68 static bool encode_webp_lossless(SkWStream* dst, const SkPixmap& src) {
69 SkWebpEncoder::Options opts;
70 opts.fCompression = SkWebpEncoder::Compression::kLossless;
71 opts.fQuality = 90;
72 return SkWebpEncoder::Encode(dst, src, opts);
73 }
74
encode_png(SkWStream * dst,const SkPixmap & src,SkPngEncoder::FilterFlag filters,int zlibLevel)75 static bool encode_png(SkWStream* dst,
76 const SkPixmap& src,
77 SkPngEncoder::FilterFlag filters,
78 int zlibLevel) {
79 SkPngEncoder::Options opts;
80 opts.fFilterFlags = filters;
81 opts.fZLibLevel = zlibLevel;
82 return SkPngEncoder::Encode(dst, src, opts);
83 }
84
85 #define PNG(FLAG, ZLIBLEVEL) [](SkWStream* d, const SkPixmap& s) { \
86 return encode_png(d, s, SkPngEncoder::FilterFlag::FLAG, ZLIBLEVEL); }
87
88 static const char* srcs[2] = {"images/mandrill_512.png", "images/color_wheel.jpg"};
89
90 // The Android Photos app uses a quality of 90 on JPEG encodes
91 DEF_BENCH(return new EncodeBench(srcs[0], &encode_jpeg, "JPEG"));
92 DEF_BENCH(return new EncodeBench(srcs[1], &encode_jpeg, "JPEG"));
93
94 // TODO: What is the appropriate quality to use to benchmark WEBP encodes?
95 DEF_BENCH(return new EncodeBench(srcs[0], encode_webp_lossy, "WEBP"));
96 DEF_BENCH(return new EncodeBench(srcs[1], encode_webp_lossy, "WEBP"));
97
98 DEF_BENCH(return new EncodeBench(srcs[0], encode_webp_lossless, "WEBP_LL"));
99 DEF_BENCH(return new EncodeBench(srcs[1], encode_webp_lossless, "WEBP_LL"));
100
101 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kAll, 6), "PNG"));
102 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kAll, 3), "PNG_3"));
103 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kAll, 1), "PNG_1"));
104
105 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kSub, 6), "PNG_6s"));
106 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kSub, 3), "PNG_3s"));
107 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kSub, 1), "PNG_1s"));
108
109 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kNone, 6), "PNG_6n"));
110 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kNone, 3), "PNG_3n"));
111 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kNone, 1), "PNG_1n"));
112
113 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kAll, 6), "PNG"));
114 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kAll, 3), "PNG_3"));
115 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kAll, 1), "PNG_1"));
116
117 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kSub, 6), "PNG_6s"));
118 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kSub, 3), "PNG_3s"));
119 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kSub, 1), "PNG_1s"));
120
121 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kNone, 6), "PNG_6n"));
122 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kNone, 3), "PNG_3n"));
123 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kNone, 1), "PNG_1n"));
124
125 #undef PNG
126
