Flutter Engine
The Flutter Engine
SkJpegXmpTest.cpp
Go to the documentation of this file.
1/*
2 * Copyright 2023 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 "include/core/SkData.h"
9#include "include/private/SkGainmapInfo.h"
10#include "src/codec/SkJpegXmp.h"
11#include "src/core/SkMD5.h"
12#include "tests/Test.h"
13
14#include <iomanip>
15#include <iostream>
16#include <regex>
17#include <sstream>
18
19DEF_TEST(SkJpegXmp_standardXmp, r) {
20 const char xmpData[] =
21 "http://ns.adobe.com/xap/1.0/\0"
22 R"(
23 <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="XMP Core 6.0.0">
24 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
25 xmlns:hdrgm="http://ns.adobe.com/hdr-gain-map/1.0/">
26 <rdf:Description rdf:about="">
27 <hdrgm:Version>1.0</hdrgm:Version>
28 <hdrgm:GainMapMax>3</hdrgm:GainMapMax>
29 <hdrgm:HDRCapacityMax>4</hdrgm:HDRCapacityMax>
30 </rdf:Description>
31 </rdf:RDF>
32 </x:xmpmeta>)";
33
34 std::vector<sk_sp<SkData>> app1Params;
35 app1Params.push_back(SkData::MakeWithoutCopy(xmpData, sizeof(xmpData) - 1));
36
37 auto xmp = SkJpegMakeXmp(app1Params);
38 REPORTER_ASSERT(r, xmp);
39
40 SkGainmapInfo info;
41 REPORTER_ASSERT(r, xmp->getGainmapInfoHDRGM(&info));
42 REPORTER_ASSERT(r, info.fGainmapRatioMax.fR == 8.f);
43 REPORTER_ASSERT(r, info.fDisplayRatioHdr == 16.f);
44}
45
46DEF_TEST(SkJpegXmp_defaultValues, r) {
47 const char xmpData[] =
48 "http://ns.adobe.com/xap/1.0/\0"
49 R"(
50 <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="XMP Core 6.0.0">
51 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
52 xmlns:hdrgm="http://ns.adobe.com/hdr-gain-map/1.0/">
53 <rdf:Description rdf:about="" hdrgm:Version="1.0">
54 </rdf:Description>
55 </rdf:RDF>
56 </x:xmpmeta>)";
57
58 std::vector<sk_sp<SkData>> app1Params;
59 app1Params.push_back(SkData::MakeWithoutCopy(xmpData, sizeof(xmpData) - 1));
60
61 auto xmp = SkJpegMakeXmp(app1Params);
62 REPORTER_ASSERT(r, xmp);
63
64 SkGainmapInfo info;
65 REPORTER_ASSERT(r, xmp->getGainmapInfoHDRGM(&info));
66 REPORTER_ASSERT(r, info.fGainmapRatioMin.fR == 1.f);
67 REPORTER_ASSERT(r, info.fGainmapRatioMin.fG == 1.f);
68 REPORTER_ASSERT(r, info.fGainmapRatioMin.fB == 1.f);
69 REPORTER_ASSERT(r, info.fGainmapRatioMax.fR == 2.f);
70 REPORTER_ASSERT(r, info.fGainmapRatioMax.fG == 2.f);
71 REPORTER_ASSERT(r, info.fGainmapRatioMax.fB == 2.f);
72 REPORTER_ASSERT(r, info.fGainmapGamma.fR == 1.f);
73 REPORTER_ASSERT(r, info.fGainmapGamma.fG == 1.f);
74 REPORTER_ASSERT(r, info.fGainmapGamma.fB == 1.f);
75 REPORTER_ASSERT(r, info.fEpsilonSdr.fR == 1.f / 64.f);
76 REPORTER_ASSERT(r, info.fEpsilonSdr.fG == 1.f / 64.f);
77 REPORTER_ASSERT(r, info.fEpsilonSdr.fB == 1.f / 64.f);
78 REPORTER_ASSERT(r, info.fEpsilonHdr.fG == 1.f / 64.f);
79 REPORTER_ASSERT(r, info.fEpsilonHdr.fR == 1.f / 64.f);
80 REPORTER_ASSERT(r, info.fEpsilonHdr.fB == 1.f / 64.f);
81 REPORTER_ASSERT(r, info.fDisplayRatioSdr == 1.f);
82 REPORTER_ASSERT(r, info.fDisplayRatioHdr == 2.f);
83}
84
85static std::string uint32_to_string(uint32_t v) {
86 const char c[4] = {static_cast<char>((v >> 24) & 0xff),
87 static_cast<char>((v >> 16) & 0xff),
88 static_cast<char>((v >> 8) & 0xff),
89 static_cast<char>(v & 0xff)};
90 return std::string(c, 4);
91}
92
93static std::string standard_xmp_with_header(const SkMD5::Digest& digest, const std::string& data) {
94 const std::string guid = digest.toHexString().c_str();
95 const std::string dataWithGuid = std::regex_replace(data, std::regex("\\$GUID"), guid);
96 return std::string("http://ns.adobe.com/xap/1.0/") + '\0' + dataWithGuid;
97}
98
99static std::string extended_xmp_with_header(const SkMD5::Digest& digest,
100 uint32_t size,
101 uint32_t offset,
102 const std::string& data) {
103 return std::string("http://ns.adobe.com/xmp/extension/") + '\0' + digest.toHexString().c_str() +
104 uint32_to_string(size) + uint32_to_string(offset) + data;
105}
106
107DEF_TEST(SkJpegXmp_readExtendedXmp, r) {
108 const std::string standardXmpData = R"(
109 <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="XMP Core 6.0.0">
110 <rdf:RDF xmlns:xmpNote="http://ns.adobe.com/xmp/note/">
111 <rdf:Description rdf:about="">
112 <xmpNote:HasExtendedXMP>$GUID</xmpNote:HasExtendedXMP>
113 </rdf:Description>
114 </rdf:RDF>
115 </x:xmpmeta>)";
116
117 const std::string extendedXmpData1 = R"(
118 <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="XMP Core 6.0.0">
119 <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
120 xmlns:hdrgm="http://ns.adobe.com/hdr-gain-map/1.0/">
121 <rdf:Description rdf:about="">
122 <hdrgm:Version>1.0</hdrgm:Version>
123 <hdrgm:GainMapMax>3</hdrgm:GainMapMax>
124 <hdrgm:HDRCapacityMax>4</hdrgm:HDRCapacityMax>)";
125 const std::string extendedXmpData2 = R"(
126 </rdf:Description>
127 </rdf:RDF>
128 </x:xmpmeta>)";
129
130 const uint32_t totalExtendedXmpSize = extendedXmpData1.size() + extendedXmpData2.size();
131 SkMD5 md5;
132 md5.write(extendedXmpData1.data(), extendedXmpData1.length());
133 md5.write(extendedXmpData2.data(), extendedXmpData2.length());
134 const SkMD5::Digest digest = md5.finish();
135
136 const std::string standardXmpDataWithHeader = standard_xmp_with_header(digest, standardXmpData);
137
138 const uint32_t offset1 = 0;
139 const std::string extendedXmpData1WithHeader =
140 extended_xmp_with_header(digest, totalExtendedXmpSize, offset1, extendedXmpData1);
141
142 const uint32_t offset2 = extendedXmpData1.size();
143 const std::string extendedXmpData2WithHeader =
144 extended_xmp_with_header(digest, totalExtendedXmpSize, offset2, extendedXmpData2);
145
146 std::vector<sk_sp<SkData>> app1Params;
147 app1Params.push_back(SkData::MakeWithoutCopy(standardXmpDataWithHeader.data(),
148 standardXmpDataWithHeader.length()));
149 app1Params.push_back(SkData::MakeWithoutCopy(extendedXmpData1WithHeader.data(),
150 extendedXmpData1WithHeader.length()));
151 app1Params.push_back(SkData::MakeWithoutCopy(extendedXmpData2WithHeader.data(),
152 extendedXmpData2WithHeader.length()));
153
154 auto xmp = SkJpegMakeXmp(app1Params);
155 REPORTER_ASSERT(r, xmp);
156
157 SkGainmapInfo info;
158 REPORTER_ASSERT(r, xmp->getGainmapInfoHDRGM(&info));
159 REPORTER_ASSERT(r, info.fGainmapRatioMax.fR == 8.f);
160 REPORTER_ASSERT(r, info.fDisplayRatioHdr == 16.f);
161}
md5
static SkMD5::Digest md5(const SkBitmap &bm)
Definition: CodecTest.cpp:77
info
static void info(const char *fmt,...) SK_PRINTF_LIKE(1
Definition: DM.cpp:213
standard_xmp_with_header
static std::string standard_xmp_with_header(const SkMD5::Digest &digest, const std::string &data)
Definition: SkJpegXmpTest.cpp:76
extended_xmp_with_header
static std::string extended_xmp_with_header(const SkMD5::Digest &digest, uint32_t size, uint32_t offset, const std::string &data)
Definition: SkJpegXmpTest.cpp:82
DEF_TEST
DEF_TEST(SkJpegXmp_standardXmp, r)
Definition: SkJpegXmpTest.cpp:19
uint32_to_string
static std::string uint32_to_string(uint32_t v)
Definition: SkJpegXmpTest.cpp:68
SkJpegMakeXmp
std::unique_ptr< SkXmp > SkJpegMakeXmp(const std::vector< sk_sp< SkData > > &decoderApp1Params)
Definition: SkJpegXmp.cpp:181
REPORTER_ASSERT
#define REPORTER_ASSERT(r, cond,...)
Definition: Test.h:286
SkData::MakeWithoutCopy
static sk_sp< SkData > MakeWithoutCopy(const void *data, size_t length)
Definition: SkData.h:116
SkMD5
Definition: SkMD5.h:19
SkString::c_str
const char * c_str() const
Definition: SkString.h:133
dart_profiler_symbols.regex
regex
Definition: dart_profiler_symbols.py:61
flutter::size
it will be possible to load the file into Perfetto s trace viewer disable asset Prevents usage of any non test fonts unless they were explicitly Loaded via prefetched default font Indicates whether the embedding started a prefetch of the default font manager before creating the engine run In non interactive keep the shell running after the Dart script has completed enable serial On low power devices with low core running concurrent GC tasks on threads can cause them to contend with the UI thread which could potentially lead to jank This option turns off all concurrent GC activities domain network JSON encoded network policy per domain This overrides the DisallowInsecureConnections switch Embedder can specify whether to allow or disallow insecure connections at a domain level old gen heap size
Definition: switches.h:259
offset
SeparatedVector2 offset
Definition: stroke_path_geometry.cc:311
SkMD5::Digest::toHexString
SkString toHexString() const
Definition: SkMD5.cpp:112
data
std::shared_ptr< const fml::Mapping > data
Definition: texture_gles.cc:63
Generated on Sun Jun 23 2024 21:56:47 for Flutter Engine by doxygen 1.9.4