diff options
| -rw-r--r-- | DEPS | 7 | ||||
| -rw-r--r-- | skia/skia.gyp | 1 | ||||
| -rw-r--r-- | third_party/sfntly/COPYING.txt | 203 | ||||
| -rw-r--r-- | third_party/sfntly/README.chromium | 18 | ||||
| -rw-r--r-- | third_party/sfntly/sfntly.gyp | 89 | ||||
| -rw-r--r-- | third_party/sfntly/src/subsetter/font_subsetter.cc | 39 | ||||
| -rw-r--r-- | third_party/sfntly/src/subsetter/font_subsetter.h | 50 | ||||
| -rw-r--r-- | third_party/sfntly/src/subsetter/subsetter_impl.cc | 289 | ||||
| -rw-r--r-- | third_party/sfntly/src/subsetter/subsetter_impl.h | 71 |
9 files changed, 767 insertions, 0 deletions
@@ -21,6 +21,7 @@ vars = { "libjingle_revision": "73", "libvpx_revision": "90416", "ffmpeg_revision": "91042", + "sfntly_revision": "20", "skia_revision": "1919", "v8_revision": "8695", "webrtc_revision": "232", @@ -98,6 +99,12 @@ deps = { Var("nacl_trunk") + "/src/native_client/tests/prebuilt@" + Var("nacl_revision"), + "src/third_party/sfntly/src/sfntly": + "http://sfntly.googlecode.com/svn/trunk/cpp/src/sfntly@" + + #TODO(arthurhsu): replace above line with this after mirror is setup. + #(Var("googlecode_url") % "sfntly") + "/trunk/cpp/src/sfntly@" + + Var("sfntly_revision"), + "src/third_party/skia/gpu": (Var("googlecode_url") % "skia") + "/trunk/gpu@" + Var("skia_revision"), diff --git a/skia/skia.gyp b/skia/skia.gyp index a4b53af..2644d47 100644 --- a/skia/skia.gyp +++ b/skia/skia.gyp @@ -843,6 +843,7 @@ 'skia_opts', 'skia_libtess', '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations', + '../third_party/sfntly/sfntly.gyp:sfntly', '../third_party/zlib/zlib.gyp:zlib', ], 'direct_dependent_settings': { diff --git a/third_party/sfntly/COPYING.txt b/third_party/sfntly/COPYING.txt new file mode 100644 index 0000000..c61423c --- /dev/null +++ b/third_party/sfntly/COPYING.txt @@ -0,0 +1,203 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2011 Google Inc. All Rights Reserved. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/third_party/sfntly/README.chromium b/third_party/sfntly/README.chromium new file mode 100644 index 0000000..bf00b8c --- /dev/null +++ b/third_party/sfntly/README.chromium @@ -0,0 +1,18 @@ +Name: sfntly +URL: http://code.google.com/p/sfntly/ +Version: unknown +Revision: 9 +Security Critical: yes + +Description: +sfntly is a C++ library for using, editing, and creating sfnt container based +fonts (e.g. OpenType, TrueType). We use it to subset the embedded font in the +PDF generated in print preview so that the result PDF documents are +significantly smaller and loaded faster. + +Local files (not taken from upstream): +README.chromium +src/subsetter/* + +COPYING.txt is the license file copied from upstream. +A sfntly.gyp file has been added for building with Chromium. diff --git a/third_party/sfntly/sfntly.gyp b/third_party/sfntly/sfntly.gyp new file mode 100644 index 0000000..21b50ee --- /dev/null +++ b/third_party/sfntly/sfntly.gyp @@ -0,0 +1,89 @@ +# Copyright (c) 2011 The Chromium Authors. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +{ + 'targets': [ + { + 'target_name': 'sfntly', + 'type': 'static_library', + 'sources': [ + 'src/sfntly/cmap_table.cc', + 'src/sfntly/cmap_table.h', + 'src/sfntly/data/byte_array.cc', + 'src/sfntly/data/byte_array.h', + 'src/sfntly/data/font_data.cc', + 'src/sfntly/data/font_data.h', + 'src/sfntly/data/font_input_stream.cc', + 'src/sfntly/data/font_input_stream.h', + 'src/sfntly/data/font_output_stream.cc', + 'src/sfntly/data/font_output_stream.h', + 'src/sfntly/data/growable_memory_byte_array.cc', + 'src/sfntly/data/growable_memory_byte_array.h', + 'src/sfntly/data/memory_byte_array.cc', + 'src/sfntly/data/memory_byte_array.h', + 'src/sfntly/data/readable_font_data.cc', + 'src/sfntly/data/readable_font_data.h', + 'src/sfntly/data/writable_font_data.cc', + 'src/sfntly/data/writable_font_data.h', + 'src/sfntly/font.cc', + 'src/sfntly/font.h', + 'src/sfntly/font_data_table.cc', + 'src/sfntly/font_data_table.h', + 'src/sfntly/font_data_table_builder_container.h', + 'src/sfntly/font_factory.cc', + 'src/sfntly/font_factory.h', + 'src/sfntly/font_header_table.cc', + 'src/sfntly/font_header_table.h', + 'src/sfntly/glyph_table.cc', + 'src/sfntly/glyph_table.h', + 'src/sfntly/horizontal_header_table.cc', + 'src/sfntly/horizontal_header_table.h', + 'src/sfntly/horizontal_metrics_table.cc', + 'src/sfntly/horizontal_metrics_table.h', + 'src/sfntly/loca_table.cc', + 'src/sfntly/loca_table.h', + 'src/sfntly/math/fixed1616.h', + 'src/sfntly/math/font_math.h', + 'src/sfntly/maximum_profile_table.cc', + 'src/sfntly/maximum_profile_table.h', + 'src/sfntly/name_table.cc', + 'src/sfntly/name_table.h', + 'src/sfntly/os2_table.cc', + 'src/sfntly/os2_table.h', + 'src/sfntly/port/atomic.h', + 'src/sfntly/port/config.h', + 'src/sfntly/port/endian.h', + 'src/sfntly/port/exception_type.h', + 'src/sfntly/port/file_input_stream.cc', + 'src/sfntly/port/file_input_stream.h', + 'src/sfntly/port/input_stream.h', + 'src/sfntly/port/memory_output_stream.cc', + 'src/sfntly/port/memory_output_stream.h', + 'src/sfntly/port/output_stream.h', + 'src/sfntly/port/refcount.h', + 'src/sfntly/port/type.h', + 'src/sfntly/subtable.cc', + 'src/sfntly/subtable.h', + 'src/sfntly/table.cc', + 'src/sfntly/table.h', + 'src/sfntly/tag.cc', + 'src/sfntly/tag.h', + 'src/subsetter/font_subsetter.cc', + 'src/subsetter/font_subsetter.h', + 'src/subsetter/subsetter_impl.cc', + 'src/subsetter/subsetter_impl.h', + ], + 'include_dirs': [ + 'src', '../..', + ], + # This macro must be define to suppress the use of exception + 'defines': [ + 'SFNTLY_NO_EXCEPTION', + ], + 'dependencies' : [ + '../icu/icu.gyp:icuuc', + ], + }, + ] +} diff --git a/third_party/sfntly/src/subsetter/font_subsetter.cc b/third_party/sfntly/src/subsetter/font_subsetter.cc new file mode 100644 index 0000000..c045790 --- /dev/null +++ b/third_party/sfntly/src/subsetter/font_subsetter.cc @@ -0,0 +1,39 @@ +/* + * Copyright 2011 Google Inc. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "third_party/sfntly/src/subsetter/font_subsetter.h" + +#include "third_party/sfntly/src/subsetter/subsetter_impl.h" + +int SfntlyWrapper::SubsetFont(const char* font_name, + const unsigned char* original_font, + size_t font_size, + const unsigned int* glyph_ids, + size_t glyph_count, + unsigned char** output_buffer) { + if (output_buffer == NULL || + original_font == NULL || font_size == 0 || + glyph_ids == NULL || glyph_count == 0) { + return 0; + } + + sfntly::SubsetterImpl subsetter; + if (!subsetter.LoadFont(font_name, original_font, font_size)) { + return -1; // Load error or font not found. + } + + return subsetter.SubsetFont(glyph_ids, glyph_count, output_buffer); +} diff --git a/third_party/sfntly/src/subsetter/font_subsetter.h b/third_party/sfntly/src/subsetter/font_subsetter.h new file mode 100644 index 0000000..9055cd3 --- /dev/null +++ b/third_party/sfntly/src/subsetter/font_subsetter.h @@ -0,0 +1,50 @@ +/* + * Copyright 2011 Google Inc. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef THIRD_PARTY_SFNTLY_SRC_SUBSETTER_FONT_SUBSETTER_H_ +#define THIRD_PARTY_SFNTLY_SRC_SUBSETTER_FONT_SUBSETTER_H_ + +#include <cstddef> + +class SfntlyWrapper { + public: + + // Font subsetting API + // + // Input TTF/TTC/OTF fonts, specify the glyph IDs to subset, and the subset + // font is returned in |output_buffer| (caller to delete[]). Return value is + // the length of output_buffer allocated. + // + // If subsetting fails, a negative value is returned. If none of the glyph + // IDs specified is found, the function will return 0. + // + // |font_name| Font name, required for TTC files. If specified NULL, + // the first available font is selected. + // |original_font| Original font file contents. + // |font_size| Size of |original_font| in bytes. + // |glyph_ids| Glyph IDs to subset. If the specified glyph ID is not + // found in the font file, it will be ignored silently. + // |glyph_count| Number of glyph IDs in |glyph_ids| + // |output_buffer| Generated subset font. Caller to delete[]. + static int SubsetFont(const char* font_name, + const unsigned char* original_font, + size_t font_size, + const unsigned int* glyph_ids, + size_t glyph_count, + unsigned char** output_buffer); +}; + +#endif // THIRD_PARTY_SFNTLY_SRC_SUBSETTER_FONT_SUBSETTER_H_ diff --git a/third_party/sfntly/src/subsetter/subsetter_impl.cc b/third_party/sfntly/src/subsetter/subsetter_impl.cc new file mode 100644 index 0000000..290ae9f --- /dev/null +++ b/third_party/sfntly/src/subsetter/subsetter_impl.cc @@ -0,0 +1,289 @@ +/* + * Copyright 2011 Google Inc. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "third_party/sfntly/src/subsetter/subsetter_impl.h" + +#include <string.h> + +#include <map> +#include <set> + +#include "third_party/sfntly/src/sfntly/glyph_table.h" +#include "third_party/sfntly/src/sfntly/loca_table.h" +#include "third_party/sfntly/src/sfntly/name_table.h" +#include "third_party/sfntly/src/sfntly/tag.h" +#include "third_party/sfntly/src/sfntly/data/memory_byte_array.h" +#include "third_party/sfntly/src/sfntly/port/memory_output_stream.h" + +namespace sfntly { + +void ConstructName(UChar* name_part, UnicodeString* name, int32_t name_id) { + switch(name_id) { + case NameId::kFullFontName: + *name = name_part; + break; + case NameId::kFontFamilyName: + case NameId::kPreferredFamily: + case NameId::kWWSFamilyName: { + UnicodeString original = *name; + *name = name_part; + *name += original; + break; + } + case NameId::kFontSubfamilyName: + case NameId::kPreferredSubfamily: + case NameId::kWWSSubfamilyName: + *name += name_part; + break; + default: + // This name part is not used to construct font name (e.g. copyright). + // Simply ignore it. + break; + } +} + +int32_t HashCode(int32_t platform_id, int32_t encoding_id, int32_t language_id, + int32_t name_id) { + int32_t result = platform_id << 24 | encoding_id << 16 | language_id << 8; + if (name_id == NameId::kFullFontName) { + result |= 0xff; + } else if (name_id == NameId::kPreferredFamily || + name_id == NameId::kPreferredSubfamily) { + result |= 0xf; + } else if (name_id == NameId::kWWSFamilyName || + name_id == NameId::kWWSSubfamilyName) { + result |= 1; + } + return result; +} + +SubsetterImpl::SubsetterImpl() { +} + +SubsetterImpl::~SubsetterImpl() { +} + +bool SubsetterImpl::LoadFont(const char* font_name, + const unsigned char* original_font, + size_t font_size) { + ByteArrayPtr raw_font = + new MemoryByteArray((byte_t*)original_font, font_size); + if (factory_ == NULL) { + factory_.attach(FontFactory::getInstance()); + } + + FontArray font_array; + factory_->loadFonts(raw_font, &font_array); + font_ = FindFont(font_name, font_array); + if (font_ == NULL) { + return false; + } + + return true; +} + +int SubsetterImpl::SubsetFont(const unsigned int* glyph_ids, + size_t glyph_count, + unsigned char** output_buffer) { + if (factory_ == NULL || font_ == NULL) { + return -1; + } + + FontPtr new_font; + new_font.attach(Subset(glyph_ids, glyph_count)); + if (new_font == NULL) { + return 0; + } + + MemoryOutputStream output_stream; + factory_->serializeFont(new_font, &output_stream); + int length = static_cast<int>(output_stream.size()); + if (length > 0) { + *output_buffer = new unsigned char[length]; + memcpy(*output_buffer, output_stream.get(), length); + } + + return length; +} + +Font* SubsetterImpl::FindFont(const char* font_name, + const FontArray& font_array) { + if (font_array.empty() || font_array[0] == NULL) { + return NULL; + } + + if (font_name && strlen(font_name)) { + for (FontArray::const_iterator b = font_array.begin(), e = font_array.end(); + b != e; ++b) { + if (HasName(font_name, (*b).p_)) { + return (*b).p_; + } + } + } + + return font_array[0].p_; +} + +bool SubsetterImpl::HasName(const char* font_name, Font* font) { + UnicodeString font_string = UnicodeString::fromUTF8(font_name); + if (font_string.isEmpty()) + return false; + UnicodeString regular_suffix = UnicodeString::fromUTF8(" Regular"); + UnicodeString alt_font_string = font_string; + alt_font_string += regular_suffix; + + typedef std::map<int32_t, UnicodeString> NameMap; + NameMap names; + NameTablePtr name_table = down_cast<NameTable*>(font->table(Tag::name)); + + for (int32_t i = 0; i < name_table->nameCount(); ++i) { + switch(name_table->nameId(i)) { + case NameId::kFontFamilyName: + case NameId::kFontSubfamilyName: + case NameId::kFullFontName: + case NameId::kPreferredFamily: + case NameId::kPreferredSubfamily: + case NameId::kWWSFamilyName: + case NameId::kWWSSubfamilyName: { + int32_t hash_code = HashCode(name_table->platformId(i), + name_table->encodingId(i), + name_table->languageId(i), + name_table->nameId(i)); + UChar* name_part = name_table->name(i); + ConstructName(name_part, &(names[hash_code]), name_table->nameId(i)); + break; + } + default: + break; + } + } + + if (!names.empty()) { + for (NameMap::iterator b = names.begin(), e = names.end(); b != e; ++b) { + if (b->second.caseCompare(font_string, 0) == 0 || + b->second.caseCompare(alt_font_string, 0) == 0) { + return true; + } + } + } + return false; +} + +CALLER_ATTACH Font* SubsetterImpl::Subset(const unsigned int* glyph_ids, + size_t glyph_count) { + if (glyph_ids == NULL || glyph_count == 0) { + return NULL; + } + + // Find glyf and loca table. + GlyphTablePtr glyph_table = down_cast<GlyphTable*>(font_->table(Tag::glyf)); + LocaTablePtr loca_table = down_cast<LocaTable*>(font_->table(Tag::loca)); + if (glyph_table == NULL || loca_table == NULL) { + // The font is invalid. + return NULL; + } + + // Setup font builders we need. + FontBuilderPtr font_builder; + font_builder.attach(factory_->newFontBuilder()); + + GlyphTableBuilderPtr glyph_table_builder; + glyph_table_builder.attach(down_cast<GlyphTable::Builder*>( + font_builder->newTableBuilder(Tag::glyf))); + LocaTableBuilderPtr loca_table_builder; + loca_table_builder.attach(down_cast<LocaTable::Builder*>( + font_builder->newTableBuilder(Tag::loca))); + if (glyph_table_builder == NULL || loca_table_builder == NULL) { + // Out of memory. + return NULL; + } + + // Sort and uniquify glyph ids. + IntegerSet glyph_id_set; + glyph_id_set.insert(0); // Always include glyph id 0. + for (size_t i = 0; i < glyph_count; ++i) { + glyph_id_set.insert(glyph_ids[i]); + } + + // Extract glyphs and setup loca list. + IntegerList loca_list; + loca_list.resize(loca_table->numGlyphs()); + loca_list.push_back(0); + int32_t last_glyph_id = 0; + int32_t last_offset = 0; + GlyphTable::GlyphBuilderList* glyph_builders = + glyph_table_builder->glyphBuilders(); + for (IntegerSet::iterator i = glyph_id_set.begin(), e = glyph_id_set.end(); + i != e; ++i) { + if (*i < 0 || *i >= loca_table->numGlyphs()) { + // Invalid glyph id, ignore. + continue; + } + + int32_t length = loca_table->glyphLength(*i); + if (length == 0) { + // Empty glyph, ignore. + continue; + } + int32_t offset = loca_table->glyphOffset(*i); + + GlyphPtr glyph; + glyph.attach(glyph_table->glyph(offset, length)); + if (glyph == NULL) { + // Error finding glyph, ignore. + continue; + } + + // Add glyph to new glyf table. + ReadableFontDataPtr data = glyph->readFontData(); + WritableFontDataPtr copy_data; + copy_data.attach(font_builder->getNewData(data->length())); + data->copyTo(copy_data); + GlyphBuilderPtr glyph_builder; + glyph_builder.attach(glyph_table_builder->glyphBuilder(copy_data)); + glyph_builders->push_back(glyph_builder); + + // Configure loca list. + for (int32_t j = last_glyph_id + 1; j <= *i; ++j) { + loca_list[j] = last_offset; + } + last_offset += length; + loca_list[*i + 1] = last_offset; + last_glyph_id = *i; + } + for (int32_t j = last_glyph_id + 1; j <= loca_table->numGlyphs(); ++j) { + loca_list[j] = last_offset; + } + loca_table_builder->setLocaList(&loca_list); + + // Setup remaining builders. + for (TableMap::iterator i = font_->tables()->begin(), + e = font_->tables()->end(); i != e; ++i) { + // We already build the builder for glyph and loca. + if (i->first != Tag::glyf && i->first != Tag::loca) { + // The newTableBuilder() call will alter internal state of font_builder + // AND the reference count of returned object. Therefore we need to + // dereference it. + TableBuilderPtr dereference; + dereference.attach( + font_builder->newTableBuilder(i->first, i->second->readFontData())); + } + } + + return font_builder->build(); +} + +} // namespace sfntly diff --git a/third_party/sfntly/src/subsetter/subsetter_impl.h b/third_party/sfntly/src/subsetter/subsetter_impl.h new file mode 100644 index 0000000..7994689 --- /dev/null +++ b/third_party/sfntly/src/subsetter/subsetter_impl.h @@ -0,0 +1,71 @@ +/* + * Copyright 2011 Google Inc. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef THIRD_PARTY_SFNTLY_SRC_SUBSETTER_SUBSETTER_IMPL_H_ +#define THIRD_PARTY_SFNTLY_SRC_SUBSETTER_SUBSETTER_IMPL_H_ + +#include "third_party/sfntly/src/sfntly/font.h" +#include "third_party/sfntly/src/sfntly/font_factory.h" + +namespace sfntly { + +// Smart pointer usage in sfntly: +// +// sfntly carries a smart pointer implementation like COM. Ref-countable object +// type inherits from RefCounted<>, which have AddRef and Release just like +// IUnknown (but no QueryInterface). Use a Ptr<> based smart pointer to hold +// the object so that the object ref count is handled correctly. +// +// class Foo : public RefCounted<Foo> { +// public: +// static Foo* CreateInstance() { +// Ptr<Foo> obj = new Foo(); // ref count = 1 +// return obj.detach(); +// } +// }; +// typedef Ptr<Foo> FooPtr; // common short-hand notation +// FooPtr obj; +// obj.attach(Foo::CreatedInstance()); // ref count = 1 +// { +// FooPtr obj2 = obj; // ref count = 2 +// } // ref count = 1, obj2 out of scope +// obj.release(); // ref count = 0, object destroyed + +class SubsetterImpl { + public: + SubsetterImpl(); + ~SubsetterImpl(); + + bool LoadFont(const char* font_name, + const unsigned char* original_font, + size_t font_size); + int SubsetFont(const unsigned int* glyph_ids, + size_t glyph_count, + unsigned char** output_buffer); + + private: + Font* FindFont(const char* font_name, const FontArray& font_array); + bool HasName(const char* font_name, Font* font); + CALLER_ATTACH Font* Subset(const unsigned int* glyph_ids, + size_t glyph_count); + + FontFactoryPtr factory_; + FontPtr font_; +}; + +} // namespace sfntly + +#endif // THIRD_PARTY_SFNTLY_SRC_SUBSETTER_SUBSETTER_IMPL_H_ |