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
|
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Resources.h"
#include "Test.h"
#include "SkBitmap.h"
#include "SkEncodedImageFormat.h"
#include "SkImage.h"
#include "SkJpegEncoder.h"
#include "SkPngEncoder.h"
#include "SkStream.h"
static bool encode(SkEncodedImageFormat format, SkWStream* dst, const SkPixmap& src) {
switch (format) {
case SkEncodedImageFormat::kJPEG:
return SkJpegEncoder::Encode(dst, src, SkJpegEncoder::Options());
case SkEncodedImageFormat::kPNG:
return SkPngEncoder::Encode(dst, src, SkPngEncoder::Options());
default:
return false;
}
}
static std::unique_ptr<SkEncoder> make(SkEncodedImageFormat format, SkWStream* dst,
const SkPixmap& src) {
switch (format) {
case SkEncodedImageFormat::kJPEG:
return SkJpegEncoder::Make(dst, src, SkJpegEncoder::Options());
case SkEncodedImageFormat::kPNG:
return SkPngEncoder::Make(dst, src, SkPngEncoder::Options());
default:
return nullptr;
}
}
static void test_encode(skiatest::Reporter* r, SkEncodedImageFormat format) {
SkBitmap bitmap;
bool success = GetResourceAsBitmap("mandrill_128.png", &bitmap);
if (!success) {
return;
}
SkPixmap src;
success = bitmap.peekPixels(&src);
REPORTER_ASSERT(r, success);
if (!success) {
return;
}
SkDynamicMemoryWStream dst0, dst1, dst2, dst3;
success = encode(format, &dst0, src);
REPORTER_ASSERT(r, success);
auto encoder1 = make(format, &dst1, src);
for (int i = 0; i < src.height(); i++) {
success = encoder1->encodeRows(1);
REPORTER_ASSERT(r, success);
}
auto encoder2 = make(format, &dst2, src);
for (int i = 0; i < src.height(); i+=3) {
success = encoder2->encodeRows(3);
REPORTER_ASSERT(r, success);
}
auto encoder3 = make(format, &dst3, src);
success = encoder3->encodeRows(200);
REPORTER_ASSERT(r, success);
sk_sp<SkData> data0 = dst0.detachAsData();
sk_sp<SkData> data1 = dst1.detachAsData();
sk_sp<SkData> data2 = dst2.detachAsData();
sk_sp<SkData> data3 = dst3.detachAsData();
REPORTER_ASSERT(r, data0->equals(data1.get()));
REPORTER_ASSERT(r, data0->equals(data2.get()));
REPORTER_ASSERT(r, data0->equals(data3.get()));
}
DEF_TEST(Encode, r) {
test_encode(r, SkEncodedImageFormat::kJPEG);
test_encode(r, SkEncodedImageFormat::kPNG);
}
static inline bool equals(const SkBitmap& a, const SkBitmap& b) {
if (a.info() != b.info()) {
return false;
}
SkASSERT(kN32_SkColorType == a.colorType());
for (int y = 0; y < a.height(); y++) {
for (int x = 0; x < a.width(); x++) {
if (*a.getAddr32(x, y) != *b.getAddr32(x, y)) {
return false;
}
}
}
return true;
}
DEF_TEST(Encode_PngOptions, r) {
SkBitmap bitmap;
bool success = GetResourceAsBitmap("mandrill_128.png", &bitmap);
if (!success) {
return;
}
SkPixmap src;
success = bitmap.peekPixels(&src);
REPORTER_ASSERT(r, success);
if (!success) {
return;
}
SkDynamicMemoryWStream dst0, dst1, dst2;
SkPngEncoder::Options options;
success = SkPngEncoder::Encode(&dst0, src, options);
REPORTER_ASSERT(r, success);
options.fFilterFlags = SkPngEncoder::FilterFlag::kUp;
success = SkPngEncoder::Encode(&dst1, src, options);
REPORTER_ASSERT(r, success);
options.fZLibLevel = 3;
success = SkPngEncoder::Encode(&dst2, src, options);
REPORTER_ASSERT(r, success);
sk_sp<SkData> data0 = dst0.detachAsData();
sk_sp<SkData> data1 = dst1.detachAsData();
sk_sp<SkData> data2 = dst2.detachAsData();
REPORTER_ASSERT(r, data0->size() < data1->size());
REPORTER_ASSERT(r, data1->size() < data2->size());
SkBitmap bm0, bm1, bm2;
SkImage::MakeFromEncoded(data0)->asLegacyBitmap(&bm0, SkImage::kRO_LegacyBitmapMode);
SkImage::MakeFromEncoded(data1)->asLegacyBitmap(&bm1, SkImage::kRO_LegacyBitmapMode);
SkImage::MakeFromEncoded(data2)->asLegacyBitmap(&bm2, SkImage::kRO_LegacyBitmapMode);
REPORTER_ASSERT(r, equals(bm0, bm1));
REPORTER_ASSERT(r, equals(bm0, bm2));
}
|
