xref: /aosp_15_r20/external/skia/tools/TestFontDataProvider.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker /*
2*c8dee2aaSAndroid Build Coastguard Worker  * Copyright 2023 Google LLC
3*c8dee2aaSAndroid Build Coastguard Worker  *
4*c8dee2aaSAndroid Build Coastguard Worker  * Use of this source code is governed by a BSD-style license that can be
5*c8dee2aaSAndroid Build Coastguard Worker  * found in the LICENSE file.
6*c8dee2aaSAndroid Build Coastguard Worker  */
7*c8dee2aaSAndroid Build Coastguard Worker 
8*c8dee2aaSAndroid Build Coastguard Worker #include "tools/TestFontDataProvider.h"
9*c8dee2aaSAndroid Build Coastguard Worker 
10*c8dee2aaSAndroid Build Coastguard Worker #include "include/core/SkData.h"
11*c8dee2aaSAndroid Build Coastguard Worker #include "include/private/base/SkDebug.h"
12*c8dee2aaSAndroid Build Coastguard Worker #include "src/utils/SkOSPath.h"
13*c8dee2aaSAndroid Build Coastguard Worker #include "tools/flags/CommandLineFlags.h"
14*c8dee2aaSAndroid Build Coastguard Worker 
15*c8dee2aaSAndroid Build Coastguard Worker const char kTestDataJsonFilename[] = "raster_test.json";
16*c8dee2aaSAndroid Build Coastguard Worker const char kTestDataBasePath[] = "third_party/externals/googlefonts_testdata/data/";
17*c8dee2aaSAndroid Build Coastguard Worker 
18*c8dee2aaSAndroid Build Coastguard Worker std::atomic<const char*> gFontTestDataBasePath{kTestDataBasePath};
19*c8dee2aaSAndroid Build Coastguard Worker 
20*c8dee2aaSAndroid Build Coastguard Worker namespace skiatest {
21*c8dee2aaSAndroid Build Coastguard Worker static DEFINE_string(fontTestDataPath,
22*c8dee2aaSAndroid Build Coastguard Worker                      "",
23*c8dee2aaSAndroid Build Coastguard Worker                      "Path to extracted data from googlefonts_testdata CIPD file.");
24*c8dee2aaSAndroid Build Coastguard Worker 
SetFontTestDataDirectory()25*c8dee2aaSAndroid Build Coastguard Worker void SetFontTestDataDirectory() {
26*c8dee2aaSAndroid Build Coastguard Worker     if (FLAGS_fontTestDataPath.isEmpty()) {
27*c8dee2aaSAndroid Build Coastguard Worker         return;
28*c8dee2aaSAndroid Build Coastguard Worker     }
29*c8dee2aaSAndroid Build Coastguard Worker     if (strlen(FLAGS_fontTestDataPath[0])) {
30*c8dee2aaSAndroid Build Coastguard Worker         gFontTestDataBasePath = FLAGS_fontTestDataPath[0];
31*c8dee2aaSAndroid Build Coastguard Worker     }
32*c8dee2aaSAndroid Build Coastguard Worker }
33*c8dee2aaSAndroid Build Coastguard Worker }  // namespace skiatest
34*c8dee2aaSAndroid Build Coastguard Worker 
35*c8dee2aaSAndroid Build Coastguard Worker #if defined(SK_DEBUG)
36*c8dee2aaSAndroid Build Coastguard Worker // Change size when rolling / changing googlefonts_testdata CIPD, see bin/fetch-fonts-testdata.
37*c8dee2aaSAndroid Build Coastguard Worker constexpr size_t kExpectNumFonts = 51;
38*c8dee2aaSAndroid Build Coastguard Worker #endif
39*c8dee2aaSAndroid Build Coastguard Worker 
40*c8dee2aaSAndroid Build Coastguard Worker namespace {
prefixWithTestDataPath(SkString suffix)41*c8dee2aaSAndroid Build Coastguard Worker SkString prefixWithTestDataPath(SkString suffix) {
42*c8dee2aaSAndroid Build Coastguard Worker     return SkOSPath::Join(gFontTestDataBasePath, suffix.c_str());
43*c8dee2aaSAndroid Build Coastguard Worker }
44*c8dee2aaSAndroid Build Coastguard Worker 
prefixWithFontsPath(SkString suffix)45*c8dee2aaSAndroid Build Coastguard Worker SkString prefixWithFontsPath(SkString suffix) {
46*c8dee2aaSAndroid Build Coastguard Worker     SkString fontsPath = prefixWithTestDataPath(SkString("fonts"));
47*c8dee2aaSAndroid Build Coastguard Worker     return SkOSPath::Join(fontsPath.c_str(), suffix.c_str());
48*c8dee2aaSAndroid Build Coastguard Worker }
49*c8dee2aaSAndroid Build Coastguard Worker 
50*c8dee2aaSAndroid Build Coastguard Worker }  // namespace
51*c8dee2aaSAndroid Build Coastguard Worker 
TestFontDataProvider(const std::string & fontFilterRegexp,const std::string & langFilterRegexp)52*c8dee2aaSAndroid Build Coastguard Worker TestFontDataProvider::TestFontDataProvider(const std::string& fontFilterRegexp,
53*c8dee2aaSAndroid Build Coastguard Worker                                            const std::string& langFilterRegexp)
54*c8dee2aaSAndroid Build Coastguard Worker         : fFontFilter(fontFilterRegexp), fLangFilter(langFilterRegexp) {
55*c8dee2aaSAndroid Build Coastguard Worker     SkString testDataLocation = prefixWithTestDataPath(SkString(kTestDataJsonFilename));
56*c8dee2aaSAndroid Build Coastguard Worker     sk_sp<SkData> jsonTestData = SkData::MakeFromFileName(testDataLocation.c_str());
57*c8dee2aaSAndroid Build Coastguard Worker     SkASSERTF(jsonTestData && jsonTestData->size(),
58*c8dee2aaSAndroid Build Coastguard Worker               "Unable to access font test metadata at location %s, check bin/fetch-fonts-testdata.",
59*c8dee2aaSAndroid Build Coastguard Worker               testDataLocation.c_str());
60*c8dee2aaSAndroid Build Coastguard Worker     fJsonDom = std::make_unique<skjson::DOM>(reinterpret_cast<const char*>(jsonTestData->bytes()),
61*c8dee2aaSAndroid Build Coastguard Worker                                              jsonTestData->size());
62*c8dee2aaSAndroid Build Coastguard Worker     const skjson::ObjectValue& root = fJsonDom->root().as<skjson::ObjectValue>();
63*c8dee2aaSAndroid Build Coastguard Worker     fFonts = root["fonts"];
64*c8dee2aaSAndroid Build Coastguard Worker     SkASSERT(fFonts);
65*c8dee2aaSAndroid Build Coastguard Worker     SkASSERTF(fFonts->size() == kExpectNumFonts,
66*c8dee2aaSAndroid Build Coastguard Worker               "Unable to access all %zu test fonts (only got %zu), check bin/fetch-fonts-testdata.",
67*c8dee2aaSAndroid Build Coastguard Worker               kExpectNumFonts,
68*c8dee2aaSAndroid Build Coastguard Worker               fFonts->size());
69*c8dee2aaSAndroid Build Coastguard Worker     fSamples = root["samples"];
70*c8dee2aaSAndroid Build Coastguard Worker     SkASSERT(fSamples);
71*c8dee2aaSAndroid Build Coastguard Worker }
72*c8dee2aaSAndroid Build Coastguard Worker 
next(TestSet * testSet)73*c8dee2aaSAndroid Build Coastguard Worker bool TestFontDataProvider::next(TestSet* testSet) {
74*c8dee2aaSAndroid Build Coastguard Worker     while (testSet && fFontsIndex < fFonts->size()) {
75*c8dee2aaSAndroid Build Coastguard Worker         const skjson::ObjectValue* fontsEntry = (*fFonts)[fFontsIndex++];
76*c8dee2aaSAndroid Build Coastguard Worker         SkASSERT(fontsEntry);
77*c8dee2aaSAndroid Build Coastguard Worker         const skjson::StringValue* fontName = (*fontsEntry)["name"];
78*c8dee2aaSAndroid Build Coastguard Worker         SkASSERT(fontName);
79*c8dee2aaSAndroid Build Coastguard Worker         std::smatch match;
80*c8dee2aaSAndroid Build Coastguard Worker         std::string fontNameStr(fontName->str());
81*c8dee2aaSAndroid Build Coastguard Worker         if (std::regex_match(fontNameStr, match, fFontFilter)) {
82*c8dee2aaSAndroid Build Coastguard Worker             testSet->fontName = SkString(fontNameStr);
83*c8dee2aaSAndroid Build Coastguard Worker             const skjson::StringValue* fontFilename = (*fontsEntry)["path"];
84*c8dee2aaSAndroid Build Coastguard Worker             testSet->fontFilename = prefixWithFontsPath(
85*c8dee2aaSAndroid Build Coastguard Worker                     SkString(fontFilename->str().data(), fontFilename->str().size()));
86*c8dee2aaSAndroid Build Coastguard Worker             testSet->langSamples =
87*c8dee2aaSAndroid Build Coastguard Worker                     getLanguageSamples((*fontsEntry)["languages"].as<skjson::ArrayValue>());
88*c8dee2aaSAndroid Build Coastguard Worker             return true;
89*c8dee2aaSAndroid Build Coastguard Worker         }
90*c8dee2aaSAndroid Build Coastguard Worker     }
91*c8dee2aaSAndroid Build Coastguard Worker     return false;
92*c8dee2aaSAndroid Build Coastguard Worker }
93*c8dee2aaSAndroid Build Coastguard Worker 
rewind()94*c8dee2aaSAndroid Build Coastguard Worker void TestFontDataProvider::rewind() { fFontsIndex = 0; }
95*c8dee2aaSAndroid Build Coastguard Worker 
getLanguageSamples(const skjson::ArrayValue * languages)96*c8dee2aaSAndroid Build Coastguard Worker std::vector<TestFontDataProvider::LangSample> TestFontDataProvider::getLanguageSamples(
97*c8dee2aaSAndroid Build Coastguard Worker         const skjson::ArrayValue* languages) {
98*c8dee2aaSAndroid Build Coastguard Worker     std::vector<LangSample> samples;
99*c8dee2aaSAndroid Build Coastguard Worker     for (size_t i = 0; i < languages->size(); ++i) {
100*c8dee2aaSAndroid Build Coastguard Worker         const skjson::StringValue* langTag = (*languages)[i];
101*c8dee2aaSAndroid Build Coastguard Worker         std::string langTagStr(langTag->str());
102*c8dee2aaSAndroid Build Coastguard Worker         std::smatch match;
103*c8dee2aaSAndroid Build Coastguard Worker         if (std::regex_match(langTagStr, match, fLangFilter)) {
104*c8dee2aaSAndroid Build Coastguard Worker             const skjson::ObjectValue* sample = (*fSamples)[langTagStr.c_str()];
105*c8dee2aaSAndroid Build Coastguard Worker             const skjson::StringValue* shortSample = (*sample)["short_sample"];
106*c8dee2aaSAndroid Build Coastguard Worker             const skjson::StringValue* longSample = (*sample)["long_sample"];
107*c8dee2aaSAndroid Build Coastguard Worker             SkString sampleShort(shortSample->str().data(), shortSample->str().size());
108*c8dee2aaSAndroid Build Coastguard Worker             SkString sampleLong(longSample->str().data(), longSample->str().size());
109*c8dee2aaSAndroid Build Coastguard Worker             samples.push_back({SkString(langTagStr), sampleShort, sampleLong});
110*c8dee2aaSAndroid Build Coastguard Worker         }
111*c8dee2aaSAndroid Build Coastguard Worker     }
112*c8dee2aaSAndroid Build Coastguard Worker     SkASSERT_RELEASE(samples.size());
113*c8dee2aaSAndroid Build Coastguard Worker     return samples;
114*c8dee2aaSAndroid Build Coastguard Worker }
115