123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382 |
- /*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "include/core/SkData.h"
- #include "include/core/SkFontMgr.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkStream.h"
- #include "include/core/SkTypeface.h"
- #include "include/ports/SkTypeface_win.h"
- #include "include/private/SkFixed.h"
- #include "src/core/SkAdvancedTypefaceMetrics.h"
- #include "src/core/SkFontDescriptor.h"
- #include "src/core/SkFontMgrPriv.h"
- #include "src/core/SkFontPriv.h"
- #include "src/core/SkMakeUnique.h"
- #include "src/core/SkTypefaceCache.h"
- #include "src/sfnt/SkOTTable_OS_2.h"
- #include "src/sfnt/SkSFNTHeader.h"
- #include "src/utils/SkUTF.h"
- #include "tests/Test.h"
- #include "tools/Resources.h"
- #include "tools/ToolUtils.h"
- #include "tools/fonts/TestEmptyTypeface.h"
- #include <memory>
- static void TypefaceStyle_test(skiatest::Reporter* reporter,
- uint16_t weight, uint16_t width, SkData* data)
- {
- sk_sp<SkData> dataCopy;
- if (!data->unique()) {
- dataCopy = SkData::MakeWithCopy(data->data(), data->size());
- data = dataCopy.get();
- }
- SkSFNTHeader* sfntHeader = static_cast<SkSFNTHeader*>(data->writable_data());
- SkSFNTHeader::TableDirectoryEntry* tableEntry =
- SkTAfter<SkSFNTHeader::TableDirectoryEntry>(sfntHeader);
- SkSFNTHeader::TableDirectoryEntry* os2TableEntry = nullptr;
- int numTables = SkEndian_SwapBE16(sfntHeader->numTables);
- for (int tableEntryIndex = 0; tableEntryIndex < numTables; ++tableEntryIndex) {
- if (SkOTTableOS2::TAG == tableEntry[tableEntryIndex].tag) {
- os2TableEntry = tableEntry + tableEntryIndex;
- break;
- }
- }
- SkASSERT_RELEASE(os2TableEntry);
- size_t os2TableOffset = SkEndian_SwapBE32(os2TableEntry->offset);
- SkOTTableOS2_V0* os2Table = SkTAddOffset<SkOTTableOS2_V0>(sfntHeader, os2TableOffset);
- os2Table->usWeightClass.value = SkEndian_SwapBE16(weight);
- using WidthType = SkOTTableOS2_V0::WidthClass::Value;
- os2Table->usWidthClass.value = static_cast<WidthType>(SkEndian_SwapBE16(width));
- sk_sp<SkTypeface> newTypeface(SkTypeface::MakeFromData(sk_ref_sp(data)));
- if (!newTypeface) {
- // Not all SkFontMgr can MakeFromStream().
- return;
- }
- SkFontStyle newStyle = newTypeface->fontStyle();
- //printf("%d, %f\n", weight, (newStyle.weight() - (float)0x7FFF) / (float)0x7FFF);
- //printf("%d, %f\n", width , (newStyle.width() - (float)0x7F) / (float)0x7F);
- //printf("%d, %d\n", weight, newStyle.weight());
- //printf("%d, %d\n", width , newStyle.width());
- // Some back-ends (CG, GDI, DW) support OS/2 version A which uses 0 - 10 (but all differently).
- REPORTER_ASSERT(reporter,
- newStyle.weight() == weight ||
- (weight <= 10 && newStyle.weight() == 100 * weight) ||
- (weight == 4 && newStyle.weight() == 350) || // GDI weirdness
- (weight == 5 && newStyle.weight() == 400) || // GDI weirdness
- (weight == 0 && newStyle.weight() == 1) || // DW weirdness
- (weight == 1000 && newStyle.weight() == 999) // DW weirdness
- );
- // Some back-ends (GDI) don't support width, ensure these always report 'medium'.
- REPORTER_ASSERT(reporter,
- newStyle.width() == width ||
- newStyle.width() == 5);
- }
- DEF_TEST(TypefaceStyle, reporter) {
- std::unique_ptr<SkStreamAsset> stream(GetResourceAsStream("fonts/Em.ttf"));
- if (!stream) {
- REPORT_FAILURE(reporter, "fonts/Em.ttf", SkString("Cannot load resource"));
- return;
- }
- sk_sp<SkData> data(SkData::MakeFromStream(stream.get(), stream->getLength()));
- using SkFS = SkFontStyle;
- for (int weight = SkFS::kInvisible_Weight; weight <= SkFS::kExtraBlack_Weight; ++weight) {
- TypefaceStyle_test(reporter, weight, 5, data.get());
- }
- for (int width = SkFS::kUltraCondensed_Width; width <= SkFS::kUltraExpanded_Width; ++width) {
- TypefaceStyle_test(reporter, 400, width, data.get());
- }
- }
- DEF_TEST(TypefaceRoundTrip, reporter) {
- sk_sp<SkTypeface> typeface(MakeResourceAsTypeface("fonts/7630.otf"));
- if (!typeface) {
- // Not all SkFontMgr can MakeFromStream().
- return;
- }
- int fontIndex;
- std::unique_ptr<SkStreamAsset> stream = typeface->openStream(&fontIndex);
- sk_sp<SkFontMgr> fm = SkFontMgr::RefDefault();
- sk_sp<SkTypeface> typeface2 = fm->makeFromStream(std::move(stream), fontIndex);
- REPORTER_ASSERT(reporter, typeface2);
- }
- DEF_TEST(FontDescriptorNegativeVariationSerialize, reporter) {
- SkFontDescriptor desc;
- SkFixed axis = -SK_Fixed1;
- auto font = skstd::make_unique<SkMemoryStream>("a", 1, false);
- desc.setFontData(skstd::make_unique<SkFontData>(std::move(font), 0, &axis, 1));
- SkDynamicMemoryWStream stream;
- desc.serialize(&stream);
- SkFontDescriptor descD;
- SkFontDescriptor::Deserialize(stream.detachAsStream().get(), &descD);
- std::unique_ptr<SkFontData> fontData = descD.detachFontData();
- if (!fontData) {
- REPORT_FAILURE(reporter, "fontData", SkString());
- return;
- }
- if (fontData->getAxisCount() != 1) {
- REPORT_FAILURE(reporter, "fontData->getAxisCount() != 1", SkString());
- return;
- }
- REPORTER_ASSERT(reporter, fontData->getAxis()[0] == -SK_Fixed1);
- };
- DEF_TEST(TypefaceAxes, reporter) {
- std::unique_ptr<SkStreamAsset> distortable(GetResourceAsStream("fonts/Distortable.ttf"));
- if (!distortable) {
- REPORT_FAILURE(reporter, "distortable", SkString());
- return;
- }
- constexpr int numberOfAxesInDistortable = 1;
- sk_sp<SkFontMgr> fm = SkFontMgr::RefDefault();
- // The position may be over specified. If there are multiple values for a given axis,
- // ensure the last one since that's what css-fonts-4 requires.
- const SkFontArguments::VariationPosition::Coordinate position[] = {
- { SkSetFourByteTag('w','g','h','t'), 1.618033988749895f },
- { SkSetFourByteTag('w','g','h','t'), SK_ScalarSqrt2 },
- };
- SkFontArguments params;
- params.setVariationDesignPosition({position, SK_ARRAY_COUNT(position)});
- // TODO: if axes are set and the back-end doesn't support them, should we create the typeface?
- sk_sp<SkTypeface> typeface = fm->makeFromStream(std::move(distortable), params);
- if (!typeface) {
- // Not all SkFontMgr can makeFromStream().
- return;
- }
- int count = typeface->getVariationDesignPosition(nullptr, 0);
- if (count == -1) {
- return;
- }
- REPORTER_ASSERT(reporter, count == numberOfAxesInDistortable);
- SkFontArguments::VariationPosition::Coordinate positionRead[numberOfAxesInDistortable];
- count = typeface->getVariationDesignPosition(positionRead, SK_ARRAY_COUNT(positionRead));
- REPORTER_ASSERT(reporter, count == SK_ARRAY_COUNT(positionRead));
- REPORTER_ASSERT(reporter, positionRead[0].axis == position[1].axis);
- // Convert to fixed for "almost equal".
- SkFixed fixedRead = SkScalarToFixed(positionRead[0].value);
- SkFixed fixedOriginal = SkScalarToFixed(position[1].value);
- REPORTER_ASSERT(reporter, SkTAbs(fixedRead - fixedOriginal) < 2);
- }
- DEF_TEST(TypefaceVariationIndex, reporter) {
- std::unique_ptr<SkStreamAsset> distortable(GetResourceAsStream("fonts/Distortable.ttf"));
- if (!distortable) {
- REPORT_FAILURE(reporter, "distortable", SkString());
- return;
- }
- sk_sp<SkFontMgr> fm = SkFontMgr::RefDefault();
- SkFontArguments params;
- // The first named variation position in Distortable is 'Thin'.
- params.setCollectionIndex(0x00010000);
- sk_sp<SkTypeface> typeface = fm->makeFromStream(std::move(distortable), params);
- if (!typeface) {
- // FreeType is the only weird thing that supports this, Skia just needs to make sure if it
- // gets one of these things make sense.
- return;
- }
- int count = typeface->getVariationDesignPosition(nullptr, 0);
- if (!(count == 1)) {
- REPORT_FAILURE(reporter, "count == 1", SkString());
- return;
- }
- SkFontArguments::VariationPosition::Coordinate positionRead[1];
- count = typeface->getVariationDesignPosition(positionRead, SK_ARRAY_COUNT(positionRead));
- if (count == -1) {
- return;
- }
- if (!(count == 1)) {
- REPORT_FAILURE(reporter, "count == 1", SkString());
- return;
- }
- REPORTER_ASSERT(reporter, positionRead[0].axis == SkSetFourByteTag('w','g','h','t'));
- REPORTER_ASSERT(reporter, positionRead[0].value == 0.5);
- }
- DEF_TEST(Typeface, reporter) {
- sk_sp<SkTypeface> t1(SkTypeface::MakeFromName(nullptr, SkFontStyle()));
- sk_sp<SkTypeface> t2(SkTypeface::MakeDefault());
- REPORTER_ASSERT(reporter, SkTypeface::Equal(t1.get(), t2.get()));
- REPORTER_ASSERT(reporter, SkTypeface::Equal(nullptr, t1.get()));
- REPORTER_ASSERT(reporter, SkTypeface::Equal(nullptr, t2.get()));
- REPORTER_ASSERT(reporter, SkTypeface::Equal(t1.get(), nullptr));
- REPORTER_ASSERT(reporter, SkTypeface::Equal(t2.get(), nullptr));
- }
- DEF_TEST(TypefaceAxesParameters, reporter) {
- std::unique_ptr<SkStreamAsset> distortable(GetResourceAsStream("fonts/Distortable.ttf"));
- if (!distortable) {
- REPORT_FAILURE(reporter, "distortable", SkString());
- return;
- }
- constexpr int numberOfAxesInDistortable = 1;
- constexpr SkScalar minAxisInDistortable = 0.5;
- constexpr SkScalar defAxisInDistortable = 1;
- constexpr SkScalar maxAxisInDistortable = 2;
- constexpr bool axisIsHiddenInDistortable = false;
- sk_sp<SkFontMgr> fm = SkFontMgr::RefDefault();
- SkFontArguments params;
- sk_sp<SkTypeface> typeface = fm->makeFromStream(std::move(distortable), params);
- if (!typeface) {
- // Not all SkFontMgr can makeFromStream().
- return;
- }
- SkFontParameters::Variation::Axis parameter[numberOfAxesInDistortable];
- int count = typeface->getVariationDesignParameters(parameter, SK_ARRAY_COUNT(parameter));
- if (count == -1) {
- return;
- }
- REPORTER_ASSERT(reporter, count == SK_ARRAY_COUNT(parameter));
- REPORTER_ASSERT(reporter, parameter[0].min == minAxisInDistortable);
- REPORTER_ASSERT(reporter, parameter[0].def == defAxisInDistortable);
- REPORTER_ASSERT(reporter, parameter[0].max == maxAxisInDistortable);
- REPORTER_ASSERT(reporter, parameter[0].tag == SkSetFourByteTag('w','g','h','t'));
- REPORTER_ASSERT(reporter, parameter[0].isHidden() == axisIsHiddenInDistortable);
- }
- static bool count_proc(SkTypeface* face, void* ctx) {
- int* count = static_cast<int*>(ctx);
- *count = *count + 1;
- return false;
- }
- static int count(skiatest::Reporter* reporter, const SkTypefaceCache& cache) {
- int count = 0;
- sk_sp<SkTypeface> none = cache.findByProcAndRef(count_proc, &count);
- REPORTER_ASSERT(reporter, none == nullptr);
- return count;
- }
- DEF_TEST(TypefaceCache, reporter) {
- sk_sp<SkTypeface> t1(TestEmptyTypeface::Make());
- {
- SkTypefaceCache cache;
- REPORTER_ASSERT(reporter, count(reporter, cache) == 0);
- {
- sk_sp<SkTypeface> t0(TestEmptyTypeface::Make());
- cache.add(t0);
- REPORTER_ASSERT(reporter, count(reporter, cache) == 1);
- cache.add(t1);
- REPORTER_ASSERT(reporter, count(reporter, cache) == 2);
- cache.purgeAll();
- REPORTER_ASSERT(reporter, count(reporter, cache) == 2);
- }
- REPORTER_ASSERT(reporter, count(reporter, cache) == 2);
- cache.purgeAll();
- REPORTER_ASSERT(reporter, count(reporter, cache) == 1);
- }
- REPORTER_ASSERT(reporter, t1->unique());
- }
- static void check_serialize_behaviors(sk_sp<SkTypeface> tf, bool isLocalData,
- skiatest::Reporter* reporter) {
- if (!tf) {
- return;
- }
- auto data0 = tf->serialize(SkTypeface::SerializeBehavior::kDoIncludeData);
- auto data1 = tf->serialize(SkTypeface::SerializeBehavior::kDontIncludeData);
- auto data2 = tf->serialize(SkTypeface::SerializeBehavior::kIncludeDataIfLocal);
- REPORTER_ASSERT(reporter, data0->size() >= data1->size());
- if (isLocalData) {
- REPORTER_ASSERT(reporter, data0->equals(data2.get()));
- } else {
- REPORTER_ASSERT(reporter, data1->equals(data2.get()));
- }
- }
- DEF_TEST(Typeface_serialize, reporter) {
- check_serialize_behaviors(SkTypeface::MakeDefault(), false, reporter);
- check_serialize_behaviors(SkTypeface::MakeFromStream(
- GetResourceAsStream("fonts/Distortable.ttf")),
- true, reporter);
- }
- DEF_TEST(Typeface_glyph_to_char, reporter) {
- SkFont font(ToolUtils::emoji_typeface(), 12);
- SkASSERT(font.getTypeface());
- char const * text = ToolUtils::emoji_sample_text();
- size_t const textLen = strlen(text);
- size_t const codepointCount = SkUTF::CountUTF8(text, textLen);
- char const * const textEnd = text + textLen;
- std::unique_ptr<SkUnichar[]> originalCodepoints(new SkUnichar[codepointCount]);
- for (size_t i = 0; i < codepointCount; ++i) {
- originalCodepoints[i] = SkUTF::NextUTF8(&text, textEnd);
- }
- std::unique_ptr<SkGlyphID[]> glyphs(new SkGlyphID[codepointCount]);
- font.unicharsToGlyphs(originalCodepoints.get(), codepointCount, glyphs.get());
- std::unique_ptr<SkUnichar[]> newCodepoints(new SkUnichar[codepointCount]);
- SkFontPriv::GlyphsToUnichars(font, glyphs.get(), codepointCount, newCodepoints.get());
- SkString familyName;
- font.getTypeface()->getFamilyName(&familyName);
- for (size_t i = 0; i < codepointCount; ++i) {
- #if defined(SK_BUILD_FOR_WIN)
- // GDI does not support character to glyph mapping outside BMP.
- if (gSkFontMgr_DefaultFactory == &SkFontMgr_New_GDI &&
- 0xFFFF < originalCodepoints[i] && newCodepoints[i] == 0)
- {
- continue;
- }
- #endif
- // If two codepoints map to the same glyph then this assert is not valid.
- // However, the emoji test font should never have multiple characters map to the same glyph.
- REPORTER_ASSERT(reporter, originalCodepoints[i] == newCodepoints[i],
- "name:%s i:%d original:%d new:%d glyph:%d", familyName.c_str(), i,
- originalCodepoints[i], newCodepoints[i], glyphs[i]);
- }
- }
- // This test makes sure the legacy typeface creation does not lose its specified
- // style. See https://bugs.chromium.org/p/skia/issues/detail?id=8447 for more
- // context.
- DEF_TEST(LegacyMakeTypeface, reporter) {
- sk_sp<SkFontMgr> fm = SkFontMgr::RefDefault();
- sk_sp<SkTypeface> typeface1 = fm->legacyMakeTypeface(nullptr, SkFontStyle::Italic());
- sk_sp<SkTypeface> typeface2 = fm->legacyMakeTypeface(nullptr, SkFontStyle::Bold());
- sk_sp<SkTypeface> typeface3 = fm->legacyMakeTypeface(nullptr, SkFontStyle::BoldItalic());
- REPORTER_ASSERT(reporter, typeface1->isItalic());
- REPORTER_ASSERT(reporter, !typeface1->isBold());
- REPORTER_ASSERT(reporter, !typeface2->isItalic());
- REPORTER_ASSERT(reporter, typeface2->isBold());
- REPORTER_ASSERT(reporter, typeface3->isItalic());
- REPORTER_ASSERT(reporter, typeface3->isBold());
- }
|