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 class EncodeBench : public Benchmark {
17 public:
18 using Encoder = bool (*)(SkWStream*, const SkPixmap&);
EncodeBench(const char * filename,Encoder encoder,const char * encoderName)19 EncodeBench(const char* filename, Encoder encoder, const char* encoderName)
20 : fSourceFilename(filename)
21 , fEncoder(encoder)
22 , fName(SkStringPrintf("Encode_%s_%s", filename, encoderName)) {}
23
isSuitableFor(Backend backend)24 bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
25
onGetName()26 const char* onGetName() override { return fName.c_str(); }
27
onPreDraw(SkCanvas *)28 void onPreDraw(SkCanvas*) override {
29 SkAssertResult(GetResourceAsBitmap(fSourceFilename, &fBitmap));
30 }
31
onDraw(int loops,SkCanvas *)32 void onDraw(int loops, SkCanvas*) override {
33 while (loops-- > 0) {
34 SkPixmap pixmap;
35 SkAssertResult(fBitmap.peekPixels(&pixmap));
36 SkNullWStream dst;
37 SkAssertResult(fEncoder(&dst, pixmap));
38 SkASSERT(dst.bytesWritten() > 0);
39 }
40 }
41
42 private:
43 const char* fSourceFilename;
44 Encoder fEncoder;
45 SkString fName;
46 SkBitmap fBitmap;
47 };
48
encode_jpeg(SkWStream * dst,const SkPixmap & src)49 static bool encode_jpeg(SkWStream* dst, const SkPixmap& src) {
50 SkJpegEncoder::Options opts;
51 opts.fQuality = 90;
52 return SkJpegEncoder::Encode(dst, src, opts);
53 }
54
encode_webp_lossy(SkWStream * dst,const SkPixmap & src)55 static bool encode_webp_lossy(SkWStream* dst, const SkPixmap& src) {
56 SkWebpEncoder::Options opts;
57 opts.fCompression = SkWebpEncoder::Compression::kLossy;
58 opts.fQuality = 90;
59 opts.fUnpremulBehavior = SkTransferFunctionBehavior::kIgnore;
60 return SkWebpEncoder::Encode(dst, src, opts);
61 }
62
encode_webp_lossless(SkWStream * dst,const SkPixmap & src)63 static bool encode_webp_lossless(SkWStream* dst, const SkPixmap& src) {
64 SkWebpEncoder::Options opts;
65 opts.fCompression = SkWebpEncoder::Compression::kLossless;
66 opts.fQuality = 90;
67 opts.fUnpremulBehavior = SkTransferFunctionBehavior::kIgnore;
68 return SkWebpEncoder::Encode(dst, src, opts);
69 }
70
encode_png(SkWStream * dst,const SkPixmap & src,SkPngEncoder::FilterFlag filters,int zlibLevel)71 static bool encode_png(SkWStream* dst,
72 const SkPixmap& src,
73 SkPngEncoder::FilterFlag filters,
74 int zlibLevel) {
75 SkPngEncoder::Options opts;
76 opts.fFilterFlags = filters;
77 opts.fUnpremulBehavior = SkTransferFunctionBehavior::kIgnore;
78 opts.fZLibLevel = zlibLevel;
79 return SkPngEncoder::Encode(dst, src, opts);
80 }
81
82 #define PNG(FLAG, ZLIBLEVEL) [](SkWStream* d, const SkPixmap& s) { \
83 return encode_png(d, s, SkPngEncoder::FilterFlag::FLAG, ZLIBLEVEL); }
84
85 static const char* srcs[2] = {"mandrill_512.png", "color_wheel.jpg"};
86
87 // The Android Photos app uses a quality of 90 on JPEG encodes
88 DEF_BENCH(return new EncodeBench(srcs[0], &encode_jpeg, "JPEG"));
89 DEF_BENCH(return new EncodeBench(srcs[1], &encode_jpeg, "JPEG"));
90
91 // TODO: What is the appropriate quality to use to benchmark WEBP encodes?
92 DEF_BENCH(return new EncodeBench(srcs[0], encode_webp_lossy, "WEBP"));
93 DEF_BENCH(return new EncodeBench(srcs[1], encode_webp_lossy, "WEBP"));
94
95 DEF_BENCH(return new EncodeBench(srcs[0], encode_webp_lossless, "WEBP_LL"));
96 DEF_BENCH(return new EncodeBench(srcs[1], encode_webp_lossless, "WEBP_LL"));
97
98 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kAll, 6), "PNG"));
99 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kAll, 3), "PNG_3"));
100 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kAll, 1), "PNG_1"));
101
102 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kSub, 6), "PNG_6s"));
103 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kSub, 3), "PNG_3s"));
104 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kSub, 1), "PNG_1s"));
105
106 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kNone, 6), "PNG_6n"));
107 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kNone, 3), "PNG_3n"));
108 DEF_BENCH(return new EncodeBench(srcs[0], PNG(kNone, 1), "PNG_1n"));
109
110 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kAll, 6), "PNG"));
111 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kAll, 3), "PNG_3"));
112 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kAll, 1), "PNG_1"));
113
114 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kSub, 6), "PNG_6s"));
115 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kSub, 3), "PNG_3s"));
116 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kSub, 1), "PNG_1s"));
117
118 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kNone, 6), "PNG_6n"));
119 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kNone, 3), "PNG_3n"));
120 DEF_BENCH(return new EncodeBench(srcs[1], PNG(kNone, 1), "PNG_1n"));
121
122 #undef PNG
123