1 /* 2 * Copyright 2014 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 "Test.h" 9 10 #include "Resources.h" 11 #include "SkCanvas.h" 12 #include "SkCommandLineFlags.h" 13 #include "SkFixed.h" 14 #include "SkFont.h" 15 #include "SkFontMgr_android.h" 16 #include "SkFontMgr_android_parser.h" 17 #include "SkOSFile.h" 18 #include "SkTypeface.h" 19 20 #include <cmath> 21 #include <cstdio> 22 23 DECLARE_bool(verboseFontMgr); 24 25 int CountFallbacks(SkTDArray<FontFamily*> fontFamilies) { 26 int countOfFallbackFonts = 0; 27 for (int i = 0; i < fontFamilies.count(); i++) { 28 if (fontFamilies[i]->fIsFallbackFont) { 29 countOfFallbackFonts++; 30 } 31 } 32 return countOfFallbackFonts; 33 } 34 35 //https://tools.ietf.org/html/rfc5234#appendix-B.1 36 static bool isALPHA(int c) { 37 return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'); 38 } 39 40 //https://tools.ietf.org/html/rfc5234#appendix-B.1 41 static bool isDIGIT(int c) { 42 return ('0' <= c && c <= '9'); 43 } 44 45 static void ValidateLoadedFonts(SkTDArray<FontFamily*> fontFamilies, const char* firstExpectedFile, 46 skiatest::Reporter* reporter) { 47 REPORTER_ASSERT(reporter, fontFamilies[0]->fNames.count() == 5); 48 REPORTER_ASSERT(reporter, !strcmp(fontFamilies[0]->fNames[0].c_str(), "sans-serif")); 49 REPORTER_ASSERT(reporter, 50 !strcmp(fontFamilies[0]->fFonts[0].fFileName.c_str(), firstExpectedFile)); 51 REPORTER_ASSERT(reporter, !fontFamilies[0]->fIsFallbackFont); 52 53 // Check that the languages are all sane. 54 for (const auto& fontFamily : fontFamilies) { 55 for (const auto& lang : fontFamily->fLanguages) { 56 const SkString& langString = lang.getTag(); 57 for (size_t i = 0; i < langString.size(); ++i) { 58 int c = langString[i]; 59 REPORTER_ASSERT(reporter, isALPHA(c) || isDIGIT(c) || '-' == c); 60 } 61 } 62 } 63 64 // All file names in the test configuration files start with a capital letter. 65 // This is not a general requirement, but it is true of all the test configuration data. 66 // Verifying ensures the filenames have been read sanely and have not been 'sliced'. 67 for (int i = 0; i < fontFamilies.count(); ++i) { 68 FontFamily& family = *fontFamilies[i]; 69 for (int j = 0; j < family.fFonts.count(); ++j) { 70 FontFileInfo& file = family.fFonts[j]; 71 REPORTER_ASSERT(reporter, !file.fFileName.isEmpty() && 72 file.fFileName[0] >= 'A' && 73 file.fFileName[0] <= 'Z'); 74 } 75 } 76 } 77 78 static void DumpFiles(const FontFamily& fontFamily) { 79 for (int j = 0; j < fontFamily.fFonts.count(); ++j) { 80 const FontFileInfo& ffi = fontFamily.fFonts[j]; 81 SkDebugf(" file (%d) %s#%d", ffi.fWeight, ffi.fFileName.c_str(), ffi.fIndex); 82 for (const auto& coordinate : ffi.fVariationDesignPosition) { 83 SkDebugf(" @'%c%c%c%c'=%f", 84 (coordinate.axis >> 24) & 0xFF, 85 (coordinate.axis >> 16) & 0xFF, 86 (coordinate.axis >> 8) & 0xFF, 87 (coordinate.axis ) & 0xFF, 88 coordinate.value); 89 } 90 SkDebugf("\n"); 91 } 92 } 93 94 static void DumpLoadedFonts(SkTDArray<FontFamily*> fontFamilies, const char* label) { 95 if (!FLAGS_verboseFontMgr) { 96 return; 97 } 98 99 SkDebugf("\n--- Dumping %s\n", label); 100 for (int i = 0; i < fontFamilies.count(); ++i) { 101 SkDebugf("Family %d:\n", i); 102 switch(fontFamilies[i]->fVariant) { 103 case kElegant_FontVariant: SkDebugf(" elegant\n"); break; 104 case kCompact_FontVariant: SkDebugf(" compact\n"); break; 105 default: break; 106 } 107 SkDebugf(" basePath %s\n", fontFamilies[i]->fBasePath.c_str()); 108 if (!fontFamilies[i]->fLanguages.empty()) { 109 SkDebugf(" language"); 110 for (const auto& lang : fontFamilies[i]->fLanguages) { 111 SkDebugf(" %s", lang.getTag().c_str()); 112 } 113 SkDebugf("\n"); 114 } 115 for (int j = 0; j < fontFamilies[i]->fNames.count(); ++j) { 116 SkDebugf(" name %s\n", fontFamilies[i]->fNames[j].c_str()); 117 } 118 DumpFiles(*fontFamilies[i]); 119 fontFamilies[i]->fallbackFamilies.foreach( 120 [](SkString, std::unique_ptr<FontFamily>* fallbackFamily) { 121 SkDebugf(" Fallback for: %s\n", (*fallbackFamily)->fFallbackFor.c_str()); 122 DumpFiles(*(*fallbackFamily).get()); 123 } 124 ); 125 } 126 SkDebugf("\n\n"); 127 } 128 129 template <int N, typename T> static double test_parse_fixed_r(skiatest::Reporter* reporter, 130 double low, double high, double inc) 131 { 132 double SK_FixedMax_double = nextafter(1 << (sizeof(T) * CHAR_BIT - N - 1), 0.0); 133 double SK_FixedEpsilon_double = (1.0 / (1 << N)); 134 double maxError = 0; 135 char buffer[64]; 136 for (double f = low; f < high; f += inc) { 137 SkString s; 138 // 'sprintf' formatting as expected depends on the current locale being "C". 139 // We currently expect tests and tools to run in the "C" locale. 140 sprintf(buffer, "%.20f", f); 141 T fix; 142 bool b = parse_fixed<N>(buffer, &fix); 143 if (b) { 144 double f2 = fix * SK_FixedEpsilon_double; 145 double error = fabs(f - f2); 146 REPORTER_ASSERT(reporter, error <= SK_FixedEpsilon_double); 147 maxError = SkTMax(maxError, error); 148 } else { 149 REPORTER_ASSERT(reporter, f < -SK_FixedMax_double || SK_FixedMax_double < f); 150 } 151 } 152 153 //SkDebugf("maxError: %.20f\n", maxError); 154 return maxError; 155 } 156 157 static void test_parse_fixed(skiatest::Reporter* reporter) { 158 test_parse_fixed_r<27, int32_t>(reporter, -8.1, -7.9, 0.000001); 159 test_parse_fixed_r<27, int32_t>(reporter, -0.1, 0.1, 0.000001); 160 test_parse_fixed_r<27, int32_t>(reporter, 7.9, 8.1, 0.000001); 161 test_parse_fixed_r<16, int32_t>(reporter, -0.125, 0.125, 1.0 / (1 << 19)); 162 test_parse_fixed_r<16, int32_t>(reporter, -32768.125, -32766.875, 1.0 / (1 << 17)); 163 test_parse_fixed_r<16, int32_t>(reporter, 32766.875, 32768.125, 1.0 / (1 << 17)); 164 test_parse_fixed_r<16, int32_t>(reporter, -1.1, 1.1, 0.0001); 165 166 SkFixed fix; 167 REPORTER_ASSERT(reporter, !parse_fixed<27>("-17.1", &fix)); 168 REPORTER_ASSERT(reporter, !parse_fixed<16>("32768", &fix)); 169 REPORTER_ASSERT(reporter, !parse_fixed<16>("", &fix)); 170 REPORTER_ASSERT(reporter, !parse_fixed<16>(".", &fix)); 171 REPORTER_ASSERT(reporter, !parse_fixed<16>("123.", &fix)); 172 REPORTER_ASSERT(reporter, !parse_fixed<16>("a", &fix)); 173 REPORTER_ASSERT(reporter, !parse_fixed<16>(".123a", &fix)); 174 } 175 176 DEF_TEST(FontMgrAndroidParser, reporter) { 177 test_parse_fixed(reporter); 178 179 bool resourcesMissing = false; 180 181 SkTDArray<FontFamily*> preV17FontFamilies; 182 SkFontMgr_Android_Parser::GetCustomFontFamilies(preV17FontFamilies, 183 SkString("/custom/font/path/"), 184 GetResourcePath("android_fonts/pre_v17/system_fonts.xml").c_str(), 185 GetResourcePath("android_fonts/pre_v17/fallback_fonts.xml").c_str()); 186 187 if (preV17FontFamilies.count() > 0) { 188 REPORTER_ASSERT(reporter, preV17FontFamilies.count() == 14); 189 REPORTER_ASSERT(reporter, CountFallbacks(preV17FontFamilies) == 10); 190 191 DumpLoadedFonts(preV17FontFamilies, "pre version 17"); 192 ValidateLoadedFonts(preV17FontFamilies, "Roboto-Regular.ttf", reporter); 193 } else { 194 resourcesMissing = true; 195 } 196 preV17FontFamilies.deleteAll(); 197 198 199 SkTDArray<FontFamily*> v17FontFamilies; 200 SkFontMgr_Android_Parser::GetCustomFontFamilies(v17FontFamilies, 201 SkString("/custom/font/path/"), 202 GetResourcePath("android_fonts/v17/system_fonts.xml").c_str(), 203 GetResourcePath("android_fonts/v17/fallback_fonts.xml").c_str(), 204 GetResourcePath("android_fonts/v17").c_str()); 205 206 if (v17FontFamilies.count() > 0) { 207 REPORTER_ASSERT(reporter, v17FontFamilies.count() == 56); 208 REPORTER_ASSERT(reporter, CountFallbacks(v17FontFamilies) == 46); 209 210 DumpLoadedFonts(v17FontFamilies, "version 17"); 211 ValidateLoadedFonts(v17FontFamilies, "Roboto-Regular.ttf", reporter); 212 } else { 213 resourcesMissing = true; 214 } 215 v17FontFamilies.deleteAll(); 216 217 218 SkTDArray<FontFamily*> v22FontFamilies; 219 SkFontMgr_Android_Parser::GetCustomFontFamilies(v22FontFamilies, 220 SkString("/custom/font/path/"), 221 GetResourcePath("android_fonts/v22/fonts.xml").c_str(), 222 nullptr); 223 224 if (v22FontFamilies.count() > 0) { 225 REPORTER_ASSERT(reporter, v22FontFamilies.count() == 54); 226 REPORTER_ASSERT(reporter, CountFallbacks(v22FontFamilies) == 42); 227 228 DumpLoadedFonts(v22FontFamilies, "version 22"); 229 ValidateLoadedFonts(v22FontFamilies, "Roboto-Thin.ttf", reporter); 230 } else { 231 resourcesMissing = true; 232 } 233 v22FontFamilies.deleteAll(); 234 235 if (resourcesMissing) { 236 SkDebugf("---- Resource files missing for FontConfigParser test\n"); 237 } 238 } 239 240 DEF_TEST(FontMgrAndroidLegacyMakeTypeface, reporter) { 241 constexpr char fontsXmlFilename[] = "fonts/fonts.xml"; 242 SkString basePath = GetResourcePath("fonts/"); 243 SkString fontsXml = GetResourcePath(fontsXmlFilename); 244 245 if (!sk_exists(fontsXml.c_str())) { 246 ERRORF(reporter, "file missing: %s\n", fontsXmlFilename); 247 return; 248 } 249 250 SkFontMgr_Android_CustomFonts custom; 251 custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom; 252 custom.fBasePath = basePath.c_str(); 253 custom.fFontsXml = fontsXml.c_str(); 254 custom.fFallbackFontsXml = nullptr; 255 custom.fIsolated = false; 256 257 sk_sp<SkFontMgr> fm(SkFontMgr_New_Android(&custom)); 258 sk_sp<SkTypeface> t(fm->legacyMakeTypeface("non-existent-font", SkFontStyle())); 259 REPORTER_ASSERT(reporter, nullptr == t); 260 } 261 262 static bool bitmap_compare(const SkBitmap& ref, const SkBitmap& test) { 263 for (int y = 0; y < test.height(); ++y) { 264 for (int x = 0; x < test.width(); ++x) { 265 SkColor testColor = test.getColor(x, y); 266 SkColor refColor = ref.getColor(x, y); 267 if (refColor != testColor) { 268 return false; 269 } 270 } 271 } 272 return true; 273 } 274 275 DEF_TEST(FontMgrAndroidSystemVariableTypeface, reporter) { 276 constexpr char fontsXmlFilename[] = "fonts/fonts.xml"; 277 SkString basePath = GetResourcePath("fonts/"); 278 SkString fontsXml = GetResourcePath(fontsXmlFilename); 279 280 if (!sk_exists(fontsXml.c_str())) { 281 ERRORF(reporter, "file missing: %s\n", fontsXmlFilename); 282 return; 283 } 284 285 SkFontMgr_Android_CustomFonts custom; 286 custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom; 287 custom.fBasePath = basePath.c_str(); 288 custom.fFontsXml = fontsXml.c_str(); 289 custom.fFallbackFontsXml = nullptr; 290 custom.fIsolated = false; 291 292 sk_sp<SkFontMgr> fontMgr(SkFontMgr_New_Android(&custom)); 293 // "sans-serif" in "fonts/fonts.xml" is "fonts/Distortable.ttf" 294 sk_sp<SkTypeface> typeface(fontMgr->legacyMakeTypeface("sans-serif", SkFontStyle())); 295 296 SkBitmap bitmapStream; 297 bitmapStream.allocN32Pixels(64, 64); 298 SkCanvas canvasStream(bitmapStream); 299 canvasStream.drawColor(SK_ColorWHITE); 300 301 SkBitmap bitmapClone; 302 bitmapClone.allocN32Pixels(64, 64); 303 SkCanvas canvasClone(bitmapClone); 304 canvasStream.drawColor(SK_ColorWHITE); 305 306 SkPaint paint; 307 paint.setColor(SK_ColorGRAY); 308 paint.setAntiAlias(true); 309 constexpr float kTextSize = 20; 310 311 std::unique_ptr<SkStreamAsset> distortableStream( 312 GetResourceAsStream("fonts/Distortable.ttf")); 313 if (!distortableStream) { 314 return; 315 } 316 317 SkPoint point = SkPoint::Make(20.0f, 20.0f); 318 SkFourByteTag tag = SkSetFourByteTag('w', 'g', 'h', 't'); 319 320 for (int i = 0; i < 10; ++i) { 321 SkScalar styleValue = 322 SkDoubleToScalar(0.5 + i * ((2.0 - 0.5) / 10)); 323 SkFontArguments::VariationPosition::Coordinate 324 coordinates[] = {{tag, styleValue}}; 325 SkFontArguments::VariationPosition 326 position = {coordinates, SK_ARRAY_COUNT(coordinates)}; 327 328 SkFont fontStream( 329 fontMgr->makeFromStream(distortableStream->duplicate(), 330 SkFontArguments().setVariationDesignPosition(position)), 331 kTextSize); 332 fontStream.setEdging(SkFont::Edging::kSubpixelAntiAlias); 333 334 335 SkFont fontClone( 336 typeface->makeClone(SkFontArguments().setVariationDesignPosition(position)), kTextSize); 337 fontClone.setEdging(SkFont::Edging::kSubpixelAntiAlias); 338 339 constexpr char text[] = "abc"; 340 341 canvasStream.drawColor(SK_ColorWHITE); 342 canvasStream.drawString(text, point.fX, point.fY, fontStream, paint); 343 344 canvasClone.drawColor(SK_ColorWHITE); 345 canvasClone.drawString(text, point.fX, point.fY, fontClone, paint); 346 347 bool success = bitmap_compare(bitmapStream, bitmapClone); 348 REPORTER_ASSERT(reporter, success); 349 } 350 } 351 352 DEF_TEST(FontMgrAndroidSystemFallbackFor, reporter) { 353 constexpr char fontsXmlFilename[] = "fonts/fonts.xml"; 354 SkString basePath = GetResourcePath("fonts/"); 355 SkString fontsXml = GetResourcePath(fontsXmlFilename); 356 357 if (!sk_exists(fontsXml.c_str())) { 358 ERRORF(reporter, "file missing: %s\n", fontsXmlFilename); 359 return; 360 } 361 362 SkFontMgr_Android_CustomFonts custom; 363 custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom; 364 custom.fBasePath = basePath.c_str(); 365 custom.fFontsXml = fontsXml.c_str(); 366 custom.fFallbackFontsXml = nullptr; 367 custom.fIsolated = false; 368 369 sk_sp<SkFontMgr> fontMgr(SkFontMgr_New_Android(&custom)); 370 // "sans-serif" in "fonts/fonts.xml" is "fonts/Distortable.ttf", which doesn't have a '!' 371 // but "TestTTC" has a bold font which does have '!' and is marked as fallback for "sans-serif" 372 // and should take precedence over the same font marked as normal weight next to it. 373 sk_sp<SkTypeface> typeface(fontMgr->matchFamilyStyleCharacter( 374 "sans-serif", SkFontStyle(), nullptr, 0, '!')); 375 376 REPORTER_ASSERT(reporter, typeface->fontStyle() == SkFontStyle::Bold()); 377 } 378
