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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkCodec.h"
#include "SkCommonFlags.h"
#include "SkImageEncoder.h"
#include "SkOSPath.h"
#include "SkStream.h"
#include "Resources.h"
#include "Test.h"
#include <initializer_list>
#include <vector>
static void write_bm(const char* name, const SkBitmap& bm) {
if (FLAGS_writePath.isEmpty()) {
return;
}
SkString filename = SkOSPath::Join(FLAGS_writePath[0], name);
filename.appendf(".png");
SkFILEWStream file(filename.c_str());
if (!SkEncodeImage(&file, bm, SkEncodedImageFormat::kPNG, 100)) {
SkDebugf("failed to write '%s'\n", filename.c_str());
}
}
DEF_TEST(Codec_frames, r) {
#define kOpaque kOpaque_SkAlphaType
#define kUnpremul kUnpremul_SkAlphaType
static const struct {
const char* fName;
size_t fFrameCount;
// One less than fFramecount, since the first frame is always
// independent.
std::vector<size_t> fRequiredFrames;
// Same, since the first frame should match getInfo.
std::vector<SkAlphaType> fAlphaTypes;
// The size of this one should match fFrameCount for animated, empty
// otherwise.
std::vector<size_t> fDurations;
int fRepetitionCount;
} gRecs[] = {
{ "alphabetAnim.gif", 13,
{ SkCodec::kNone, 0, 0, 0, 0, 5, 6, SkCodec::kNone,
SkCodec::kNone, SkCodec::kNone, 10, 11 },
{ kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul,
kUnpremul, kUnpremul, kUnpremul, kOpaque, kOpaque, kUnpremul },
{ 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100 },
0 },
{ "randPixelsAnim2.gif", 4,
// required frames
{ 0, 0, 1 },
// alphas
{ kOpaque, kOpaque, kOpaque },
// durations
{ 0, 1000, 170, 40 },
// repetition count
0 },
{ "randPixelsAnim.gif", 13,
// required frames
{ SkCodec::kNone, 1, 2, 3, 4, 3, 6, 7, 7, 7, 9, 9 },
{ kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul,
kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul, kUnpremul },
// durations
{ 0, 1000, 170, 40, 220, 7770, 90, 90, 90, 90, 90, 90, 90 },
// repetition count
0 },
{ "box.gif", 1, {}, {}, {}, 0 },
{ "color_wheel.gif", 1, {}, {}, {}, 0 },
{ "test640x479.gif", 4, { 0, 1, 2 },
{ kOpaque, kOpaque, kOpaque },
{ 200, 200, 200, 200 },
SkCodec::kRepetitionCountInfinite },
{ "colorTables.gif", 2, { 0 }, { kOpaque }, { 1000, 1000 }, 5 },
{ "arrow.png", 1, {}, {}, {}, 0 },
{ "google_chrome.ico", 1, {}, {}, {}, 0 },
{ "brickwork-texture.jpg", 1, {}, {}, {}, 0 },
#if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32))
{ "dng_with_preview.dng", 1, {}, {}, {}, 0 },
#endif
{ "mandrill.wbmp", 1, {}, {}, {}, 0 },
{ "randPixels.bmp", 1, {}, {}, {}, 0 },
{ "yellow_rose.webp", 1, {}, {}, {}, 0 },
};
#undef kOpaque
#undef kUnpremul
for (const auto& rec : gRecs) {
std::unique_ptr<SkStream> stream(GetResourceAsStream(rec.fName));
if (!stream) {
// Useful error statement, but sometimes people run tests without
// resources, and they do not want to see these messages.
//ERRORF(r, "Missing resources? Could not find '%s'", rec.fName);
continue;
}
std::unique_ptr<SkCodec> codec(SkCodec::NewFromStream(stream.release()));
if (!codec) {
ERRORF(r, "Failed to create an SkCodec from '%s'", rec.fName);
continue;
}
const int repetitionCount = codec->getRepetitionCount();
if (repetitionCount != rec.fRepetitionCount) {
ERRORF(r, "%s repetition count does not match! expected: %i\tactual: %i",
rec.fName, rec.fRepetitionCount, repetitionCount);
}
const size_t expected = rec.fFrameCount;
const auto frameInfos = codec->getFrameInfo();
// getFrameInfo returns empty set for non-animated.
const size_t frameCount = frameInfos.size() == 0 ? 1 : frameInfos.size();
if (frameCount != expected) {
ERRORF(r, "'%s' expected frame count: %i\tactual: %i", rec.fName, expected, frameCount);
continue;
}
if (rec.fRequiredFrames.size() + 1 != expected) {
ERRORF(r, "'%s' has wrong number entries in fRequiredFrames; expected: %i\tactual: %i",
rec.fName, expected, rec.fRequiredFrames.size() + 1);
continue;
}
if (1 == frameCount) {
continue;
}
auto to_string = [](SkAlphaType type) {
switch (type) {
case kUnpremul_SkAlphaType:
return "unpremul";
case kOpaque_SkAlphaType:
return "opaque";
default:
return "other";
}
};
// From here on, we are only concerned with animated images.
REPORTER_ASSERT(r, frameInfos[0].fRequiredFrame == SkCodec::kNone);
REPORTER_ASSERT(r, frameInfos[0].fAlphaType == codec->getInfo().alphaType());
for (size_t i = 1; i < frameCount; i++) {
if (rec.fRequiredFrames[i-1] != frameInfos[i].fRequiredFrame) {
ERRORF(r, "%s's frame %i has wrong dependency! expected: %i\tactual: %i",
rec.fName, i, rec.fRequiredFrames[i-1], frameInfos[i].fRequiredFrame);
}
auto expectedAlpha = rec.fAlphaTypes[i-1];
auto alpha = frameInfos[i].fAlphaType;
if (expectedAlpha != alpha) {
ERRORF(r, "%s's frame %i has wrong alpha type! expected: %s\tactual: %s",
rec.fName, i, to_string(expectedAlpha), to_string(alpha));
}
}
// Compare decoding in two ways:
// 1. Provide the frame that a frame depends on, so the codec just has to blend.
// (in the array cachedFrames)
// 2. Do not provide the frame that a frame depends on, so the codec has to decode all the
// way back to a key-frame. (in a local variable uncachedFrame)
// The two should look the same.
std::vector<SkBitmap> cachedFrames(frameCount);
const auto& info = codec->getInfo().makeColorType(kN32_SkColorType);
auto decode = [&](SkBitmap* bm, bool cached, size_t index) {
bm->allocPixels(info);
if (cached) {
// First copy the pixels from the cached frame
const size_t requiredFrame = frameInfos[index].fRequiredFrame;
if (requiredFrame != SkCodec::kNone) {
const bool success = cachedFrames[requiredFrame].copyTo(bm);
REPORTER_ASSERT(r, success);
}
}
SkCodec::Options opts;
opts.fFrameIndex = index;
opts.fHasPriorFrame = cached;
const SkCodec::Result result = codec->getPixels(info, bm->getPixels(), bm->rowBytes(),
&opts, nullptr, nullptr);
REPORTER_ASSERT(r, result == SkCodec::kSuccess);
};
for (size_t i = 0; i < frameCount; i++) {
SkBitmap& cachedFrame = cachedFrames[i];
decode(&cachedFrame, true, i);
SkBitmap uncachedFrame;
decode(&uncachedFrame, false, i);
// Now verify they're equal.
const size_t rowLen = info.bytesPerPixel() * info.width();
for (int y = 0; y < info.height(); y++) {
const void* cachedAddr = cachedFrame.getAddr(0, y);
SkASSERT(cachedAddr != nullptr);
const void* uncachedAddr = uncachedFrame.getAddr(0, y);
SkASSERT(uncachedAddr != nullptr);
const bool lineMatches = memcmp(cachedAddr, uncachedAddr, rowLen) == 0;
if (!lineMatches) {
SkString name = SkStringPrintf("cached_%i", i);
write_bm(name.c_str(), cachedFrame);
name = SkStringPrintf("uncached_%i", i);
write_bm(name.c_str(), uncachedFrame);
ERRORF(r, "%s's frame %i is different depending on caching!", rec.fName, i);
break;
}
}
}
if (rec.fDurations.size() != expected) {
ERRORF(r, "'%s' has wrong number entries in fDurations; expected: %i\tactual: %i",
rec.fName, expected, rec.fDurations.size());
continue;
}
for (size_t i = 0; i < frameCount; i++) {
if (rec.fDurations[i] != frameInfos[i].fDuration) {
ERRORF(r, "%s frame %i's durations do not match! expected: %i\tactual: %i",
rec.fName, i, rec.fDurations[i], frameInfos[i].fDuration);
}
}
}
}
|
