/* * Copyright 2014 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "tests/Test.h" #include "include/core/SkBitmap.h" #include "include/core/SkCanvas.h" #include "include/core/SkFont.h" #include "include/core/SkStream.h" #include "include/core/SkTypeface.h" #include "include/ports/SkFontMgr_android.h" #include "include/private/SkFixed.h" #include "src/core/SkOSFile.h" #include "src/ports/SkFontMgr_android_parser.h" #include "tools/Resources.h" #include "tools/flags/CommandLineFlags.h" #include #include DECLARE_bool(verboseFontMgr); int CountFallbacks(SkTDArray fontFamilies) { int countOfFallbackFonts = 0; for (int i = 0; i < fontFamilies.count(); i++) { if (fontFamilies[i]->fIsFallbackFont) { countOfFallbackFonts++; } } return countOfFallbackFonts; } //https://tools.ietf.org/html/rfc5234#appendix-B.1 static bool isALPHA(int c) { return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'); } //https://tools.ietf.org/html/rfc5234#appendix-B.1 static bool isDIGIT(int c) { return ('0' <= c && c <= '9'); } static void ValidateLoadedFonts(SkTDArray fontFamilies, const char* firstExpectedFile, skiatest::Reporter* reporter) { REPORTER_ASSERT(reporter, fontFamilies[0]->fNames.count() == 5); REPORTER_ASSERT(reporter, !strcmp(fontFamilies[0]->fNames[0].c_str(), "sans-serif")); REPORTER_ASSERT(reporter, !strcmp(fontFamilies[0]->fFonts[0].fFileName.c_str(), firstExpectedFile)); REPORTER_ASSERT(reporter, !fontFamilies[0]->fIsFallbackFont); // Check that the languages are all sane. for (const auto& fontFamily : fontFamilies) { for (const auto& lang : fontFamily->fLanguages) { const SkString& langString = lang.getTag(); for (size_t i = 0; i < langString.size(); ++i) { int c = langString[i]; REPORTER_ASSERT(reporter, isALPHA(c) || isDIGIT(c) || '-' == c); } } } // All file names in the test configuration files start with a capital letter. // This is not a general requirement, but it is true of all the test configuration data. // Verifying ensures the filenames have been read sanely and have not been 'sliced'. for (int i = 0; i < fontFamilies.count(); ++i) { FontFamily& family = *fontFamilies[i]; for (int j = 0; j < family.fFonts.count(); ++j) { FontFileInfo& file = family.fFonts[j]; REPORTER_ASSERT(reporter, !file.fFileName.isEmpty() && file.fFileName[0] >= 'A' && file.fFileName[0] <= 'Z'); } } } static void DumpFiles(const FontFamily& fontFamily) { for (int j = 0; j < fontFamily.fFonts.count(); ++j) { const FontFileInfo& ffi = fontFamily.fFonts[j]; SkDebugf(" file (%d) %s#%d", ffi.fWeight, ffi.fFileName.c_str(), ffi.fIndex); for (const auto& coordinate : ffi.fVariationDesignPosition) { SkDebugf(" @'%c%c%c%c'=%f", (coordinate.axis >> 24) & 0xFF, (coordinate.axis >> 16) & 0xFF, (coordinate.axis >> 8) & 0xFF, (coordinate.axis ) & 0xFF, coordinate.value); } SkDebugf("\n"); } } static void DumpLoadedFonts(SkTDArray fontFamilies, const char* label) { if (!FLAGS_verboseFontMgr) { return; } SkDebugf("\n--- Dumping %s\n", label); for (int i = 0; i < fontFamilies.count(); ++i) { SkDebugf("Family %d:\n", i); switch(fontFamilies[i]->fVariant) { case kElegant_FontVariant: SkDebugf(" elegant\n"); break; case kCompact_FontVariant: SkDebugf(" compact\n"); break; default: break; } SkDebugf(" basePath %s\n", fontFamilies[i]->fBasePath.c_str()); if (!fontFamilies[i]->fLanguages.empty()) { SkDebugf(" language"); for (const auto& lang : fontFamilies[i]->fLanguages) { SkDebugf(" %s", lang.getTag().c_str()); } SkDebugf("\n"); } for (int j = 0; j < fontFamilies[i]->fNames.count(); ++j) { SkDebugf(" name %s\n", fontFamilies[i]->fNames[j].c_str()); } DumpFiles(*fontFamilies[i]); for (const auto& [unused, fallbackFamily] : fontFamilies[i]->fallbackFamilies) { SkDebugf(" Fallback for: %s\n", fallbackFamily->fFallbackFor.c_str()); DumpFiles(*fallbackFamily); } } SkDebugf("\n\n"); } template static double test_parse_fixed_r(skiatest::Reporter* reporter, double low, double high, double inc) { double SK_FixedMax_double = nextafter(1 << (sizeof(T) * CHAR_BIT - N - 1), 0.0); double SK_FixedEpsilon_double = (1.0 / (1 << N)); double maxError = 0; char buffer[64]; for (double f = low; f < high; f += inc) { SkString s; // 'sprintf' formatting as expected depends on the current locale being "C". // We currently expect tests and tools to run in the "C" locale. sprintf(buffer, "%.20f", f); T fix; bool b = parse_fixed(buffer, &fix); if (b) { double f2 = fix * SK_FixedEpsilon_double; double error = fabs(f - f2); REPORTER_ASSERT(reporter, error <= SK_FixedEpsilon_double); maxError = std::max(maxError, error); } else { REPORTER_ASSERT(reporter, f < -SK_FixedMax_double || SK_FixedMax_double < f); } } //SkDebugf("maxError: %.20f\n", maxError); return maxError; } static void test_parse_fixed(skiatest::Reporter* reporter) { test_parse_fixed_r<27, int32_t>(reporter, -8.1, -7.9, 0.000001); test_parse_fixed_r<27, int32_t>(reporter, -0.1, 0.1, 0.000001); test_parse_fixed_r<27, int32_t>(reporter, 7.9, 8.1, 0.000001); test_parse_fixed_r<16, int32_t>(reporter, -0.125, 0.125, 1.0 / (1 << 19)); test_parse_fixed_r<16, int32_t>(reporter, -32768.125, -32766.875, 1.0 / (1 << 17)); test_parse_fixed_r<16, int32_t>(reporter, 32766.875, 32768.125, 1.0 / (1 << 17)); test_parse_fixed_r<16, int32_t>(reporter, -1.1, 1.1, 0.0001); SkFixed fix; REPORTER_ASSERT(reporter, !parse_fixed<27>("-17.1", &fix)); REPORTER_ASSERT(reporter, !parse_fixed<16>("32768", &fix)); REPORTER_ASSERT(reporter, !parse_fixed<16>("", &fix)); REPORTER_ASSERT(reporter, !parse_fixed<16>(".", &fix)); REPORTER_ASSERT(reporter, !parse_fixed<16>("123.", &fix)); REPORTER_ASSERT(reporter, !parse_fixed<16>("a", &fix)); REPORTER_ASSERT(reporter, !parse_fixed<16>(".123a", &fix)); } DEF_TEST(FontMgrAndroidParser, reporter) { test_parse_fixed(reporter); bool resourcesMissing = false; SkTDArray preV17FontFamilies; SkFontMgr_Android_Parser::GetCustomFontFamilies(preV17FontFamilies, SkString("/custom/font/path/"), GetResourcePath("android_fonts/pre_v17/system_fonts.xml").c_str(), GetResourcePath("android_fonts/pre_v17/fallback_fonts.xml").c_str()); if (preV17FontFamilies.count() > 0) { REPORTER_ASSERT(reporter, preV17FontFamilies.count() == 14); REPORTER_ASSERT(reporter, CountFallbacks(preV17FontFamilies) == 10); DumpLoadedFonts(preV17FontFamilies, "pre version 17"); ValidateLoadedFonts(preV17FontFamilies, "Roboto-Regular.ttf", reporter); } else { resourcesMissing = true; } preV17FontFamilies.deleteAll(); SkTDArray v17FontFamilies; SkFontMgr_Android_Parser::GetCustomFontFamilies(v17FontFamilies, SkString("/custom/font/path/"), GetResourcePath("android_fonts/v17/system_fonts.xml").c_str(), GetResourcePath("android_fonts/v17/fallback_fonts.xml").c_str(), GetResourcePath("android_fonts/v17").c_str()); if (v17FontFamilies.count() > 0) { REPORTER_ASSERT(reporter, v17FontFamilies.count() == 56); REPORTER_ASSERT(reporter, CountFallbacks(v17FontFamilies) == 46); DumpLoadedFonts(v17FontFamilies, "version 17"); ValidateLoadedFonts(v17FontFamilies, "Roboto-Regular.ttf", reporter); } else { resourcesMissing = true; } v17FontFamilies.deleteAll(); SkTDArray v22FontFamilies; SkFontMgr_Android_Parser::GetCustomFontFamilies(v22FontFamilies, SkString("/custom/font/path/"), GetResourcePath("android_fonts/v22/fonts.xml").c_str(), nullptr); if (v22FontFamilies.count() > 0) { REPORTER_ASSERT(reporter, v22FontFamilies.count() == 54); REPORTER_ASSERT(reporter, CountFallbacks(v22FontFamilies) == 42); DumpLoadedFonts(v22FontFamilies, "version 22"); ValidateLoadedFonts(v22FontFamilies, "Roboto-Thin.ttf", reporter); } else { resourcesMissing = true; } v22FontFamilies.deleteAll(); if (resourcesMissing) { SkDebugf("---- Resource files missing for FontConfigParser test\n"); } } DEF_TEST(FontMgrAndroidLegacyMakeTypeface, reporter) { constexpr char fontsXmlFilename[] = "fonts/fonts.xml"; SkString basePath = GetResourcePath("fonts/"); SkString fontsXml = GetResourcePath(fontsXmlFilename); if (!sk_exists(fontsXml.c_str())) { ERRORF(reporter, "file missing: %s\n", fontsXmlFilename); return; } SkFontMgr_Android_CustomFonts custom; custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom; custom.fBasePath = basePath.c_str(); custom.fFontsXml = fontsXml.c_str(); custom.fFallbackFontsXml = nullptr; custom.fIsolated = false; sk_sp fm(SkFontMgr_New_Android(&custom)); sk_sp t(fm->legacyMakeTypeface("non-existent-font", SkFontStyle())); REPORTER_ASSERT(reporter, nullptr == t); } static bool bitmap_compare(const SkBitmap& ref, const SkBitmap& test) { for (int y = 0; y < test.height(); ++y) { for (int x = 0; x < test.width(); ++x) { SkColor testColor = test.getColor(x, y); SkColor refColor = ref.getColor(x, y); if (refColor != testColor) { return false; } } } return true; } DEF_TEST(FontMgrAndroidSystemVariableTypeface, reporter) { constexpr char fontsXmlFilename[] = "fonts/fonts.xml"; SkString basePath = GetResourcePath("fonts/"); SkString fontsXml = GetResourcePath(fontsXmlFilename); if (!sk_exists(fontsXml.c_str())) { ERRORF(reporter, "file missing: %s\n", fontsXmlFilename); return; } SkFontMgr_Android_CustomFonts custom; custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom; custom.fBasePath = basePath.c_str(); custom.fFontsXml = fontsXml.c_str(); custom.fFallbackFontsXml = nullptr; custom.fIsolated = false; sk_sp fontMgr(SkFontMgr_New_Android(&custom)); // "sans-serif" in "fonts/fonts.xml" is "fonts/Distortable.ttf" sk_sp typeface(fontMgr->legacyMakeTypeface("sans-serif", SkFontStyle())); SkBitmap bitmapStream; bitmapStream.allocN32Pixels(64, 64); SkCanvas canvasStream(bitmapStream); canvasStream.drawColor(SK_ColorWHITE); SkBitmap bitmapClone; bitmapClone.allocN32Pixels(64, 64); SkCanvas canvasClone(bitmapClone); canvasStream.drawColor(SK_ColorWHITE); SkPaint paint; paint.setColor(SK_ColorGRAY); paint.setAntiAlias(true); constexpr float kTextSize = 20; std::unique_ptr distortableStream( GetResourceAsStream("fonts/Distortable.ttf")); if (!distortableStream) { return; } SkPoint point = SkPoint::Make(20.0f, 20.0f); SkFourByteTag tag = SkSetFourByteTag('w', 'g', 'h', 't'); for (int i = 0; i < 10; ++i) { SkScalar styleValue = SkDoubleToScalar(0.5 + i * ((2.0 - 0.5) / 10)); SkFontArguments::VariationPosition::Coordinate coordinates[] = {{tag, styleValue}}; SkFontArguments::VariationPosition position = {coordinates, SK_ARRAY_COUNT(coordinates)}; SkFont fontStream( fontMgr->makeFromStream(distortableStream->duplicate(), SkFontArguments().setVariationDesignPosition(position)), kTextSize); fontStream.setEdging(SkFont::Edging::kSubpixelAntiAlias); SkFont fontClone( typeface->makeClone(SkFontArguments().setVariationDesignPosition(position)), kTextSize); fontClone.setEdging(SkFont::Edging::kSubpixelAntiAlias); constexpr char text[] = "abc"; canvasStream.drawColor(SK_ColorWHITE); canvasStream.drawString(text, point.fX, point.fY, fontStream, paint); canvasClone.drawColor(SK_ColorWHITE); canvasClone.drawString(text, point.fX, point.fY, fontClone, paint); bool success = bitmap_compare(bitmapStream, bitmapClone); REPORTER_ASSERT(reporter, success); } } DEF_TEST(FontMgrAndroidSystemFallbackFor, reporter) { constexpr char fontsXmlFilename[] = "fonts/fonts.xml"; SkString basePath = GetResourcePath("fonts/"); SkString fontsXml = GetResourcePath(fontsXmlFilename); if (!sk_exists(fontsXml.c_str())) { ERRORF(reporter, "file missing: %s\n", fontsXmlFilename); return; } SkFontMgr_Android_CustomFonts custom; custom.fSystemFontUse = SkFontMgr_Android_CustomFonts::kOnlyCustom; custom.fBasePath = basePath.c_str(); custom.fFontsXml = fontsXml.c_str(); custom.fFallbackFontsXml = nullptr; custom.fIsolated = false; sk_sp fontMgr(SkFontMgr_New_Android(&custom)); // "sans-serif" in "fonts/fonts.xml" is "fonts/Distortable.ttf", which doesn't have a '!' // but "TestTTC" has a bold font which does have '!' and is marked as fallback for "sans-serif" // and should take precedence over the same font marked as normal weight next to it. sk_sp typeface(fontMgr->matchFamilyStyleCharacter( "sans-serif", SkFontStyle(), nullptr, 0, '!')); REPORTER_ASSERT(reporter, typeface->fontStyle() == SkFontStyle::Bold()); }