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/*
* 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 "gtest/gtest.h"
#include "sfntly/font.h"
#include "sfntly/font_factory.h"
#include "sfntly/port/memory_input_stream.h"
#include "sfntly/port/memory_output_stream.h"
#include "test/test_data.h"
#include "test/test_font_utils.h"
#include "test/serialization_test.h"
namespace sfntly {
bool TestSerialization() {
FontFactoryPtr factory1, factory2, factory3;
factory1.Attach(FontFactory::GetInstance());
FontArray font_array;
LoadFont(SAMPLE_TTF_FILE, factory1, &font_array);
FontPtr original = font_array[0];
factory2.Attach(FontFactory::GetInstance());
FontBuilderArray font_builder_array;
BuilderForFontFile(SAMPLE_TTF_FILE, factory2, &font_builder_array);
FontBuilderPtr font_builder = font_builder_array[0];
FontPtr intermediate;
intermediate.Attach(font_builder->Build());
MemoryOutputStream os;
factory2->SerializeFont(intermediate, &os);
factory3.Attach(FontFactory::GetInstance());
FontArray new_font_array;
MemoryInputStream is;
is.Attach(os.Get(), os.Size());
factory3->LoadFonts(&is, &new_font_array);
FontPtr serialized = new_font_array[0];
// Check number of tables
EXPECT_EQ(original->num_tables(), serialized->num_tables());
// Check if same set of tables
const TableMap* original_tables = original->GetTableMap();
const TableMap* serialized_tables = serialized->GetTableMap();
EXPECT_EQ(original_tables->size(), serialized_tables->size());
TableMap::const_iterator not_found = serialized_tables->end();
for (TableMap::const_iterator b = original_tables->begin(),
e = original_tables->end(); b != e; ++b) {
EXPECT_TRUE((serialized_tables->find(b->first) != not_found));
}
// TODO(arthurhsu): check cmap equivalence
// Check checksum equivalence
for (size_t i = 0; i < SAMPLE_TTF_KNOWN_TAGS; ++i) {
TablePtr original_table = original->GetTable(TTF_KNOWN_TAGS[i]);
TablePtr serialized_table = serialized->GetTable(TTF_KNOWN_TAGS[i]);
EXPECT_EQ(original_table->CalculatedChecksum(),
serialized_table->CalculatedChecksum());
EXPECT_EQ(original_table->DataLength(), serialized_table->DataLength());
if (TTF_KNOWN_TAGS[i] == Tag::hhea) {
EXPECT_TRUE(VerifyHHEA(original_table, serialized_table));
} else if (TTF_KNOWN_TAGS[i] == Tag::glyf) {
EXPECT_TRUE(VerifyGLYF(original_table, serialized_table));
} else if (TTF_KNOWN_TAGS[i] == Tag::hmtx) {
EXPECT_TRUE(VerifyHMTX(original_table, serialized_table));
} else if (TTF_KNOWN_TAGS[i] == Tag::loca) {
EXPECT_TRUE(VerifyLOCA(original_table, serialized_table));
} else if (TTF_KNOWN_TAGS[i] == Tag::maxp) {
EXPECT_TRUE(VerifyMAXP(original_table, serialized_table));
} else if (TTF_KNOWN_TAGS[i] == Tag::name) {
EXPECT_TRUE(VerifyNAME(original_table, serialized_table));
} else if (TTF_KNOWN_TAGS[i] == Tag::OS_2) {
EXPECT_TRUE(VerifyOS_2(original_table, serialized_table));
}
}
return true;
}
bool TestSerializationBitmap() {
FontFactoryPtr factory1, factory2, factory3;
factory1.Attach(FontFactory::GetInstance());
FontArray font_array;
LoadFont(SAMPLE_BITMAP_FONT, factory1, &font_array);
FontPtr original = font_array[0];
factory2.Attach(FontFactory::GetInstance());
FontBuilderArray font_builder_array;
BuilderForFontFile(SAMPLE_BITMAP_FONT, factory2, &font_builder_array);
FontBuilderPtr font_builder = font_builder_array[0];
FontPtr intermediate;
intermediate.Attach(font_builder->Build());
MemoryOutputStream os;
factory2->SerializeFont(intermediate, &os);
factory3.Attach(FontFactory::GetInstance());
FontArray new_font_array;
MemoryInputStream is;
is.Attach(os.Get(), os.Size());
factory3->LoadFonts(&is, &new_font_array);
FontPtr serialized = new_font_array[0];
// Check number of tables
EXPECT_EQ(original->num_tables(), serialized->num_tables());
// Check if same set of tables
const TableMap* original_tables = original->GetTableMap();
const TableMap* serialized_tables = serialized->GetTableMap();
EXPECT_EQ(original_tables->size(), serialized_tables->size());
TableMap::const_iterator not_found = serialized_tables->end();
for (TableMap::const_iterator b = original_tables->begin(),
e = original_tables->end(); b != e; ++b) {
EXPECT_TRUE((serialized_tables->find(b->first) != not_found));
}
// Check checksum equivalence
for (size_t i = 0; i < SAMPLE_BITMAP_KNOWN_TAGS; ++i) {
TablePtr original_table = original->GetTable(BITMAP_KNOWN_TAGS[i]);
TablePtr serialized_table = serialized->GetTable(BITMAP_KNOWN_TAGS[i]);
EXPECT_EQ(original_table->CalculatedChecksum(),
serialized_table->CalculatedChecksum());
EXPECT_EQ(original_table->DataLength(), serialized_table->DataLength());
}
return true;
}
} // namespace sfntly
TEST(Serialization, Simple) {
ASSERT_TRUE(sfntly::TestSerialization());
}
TEST(Serialization, Bitmap) {
ASSERT_TRUE(sfntly::TestSerializationBitmap());
}
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