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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 <stdio.h>
#include "sfntly/font.h"
#include "sfntly/table/table.h"
#include "sfntly/tag.h"
#include "subtly/stats.h"
namespace subtly {
using namespace sfntly;
int32_t TotalFontSize(Font* font) {
int32_t size = 0;
const TableMap* table_map = font->GetTableMap();
for (TableMap::const_iterator it = table_map->begin(),
e = table_map->end(); it != e; ++it) {
size += it->second->DataLength();
}
return size;
}
double TableSizePercent(Font* font, int32_t tag) {
TablePtr table = font->GetTable(tag);
return static_cast<double>(table->DataLength()) / TotalFontSize(font) * 100;
}
void PrintComparison(FILE* out, Font* font, Font* new_font) {
fprintf(out, "====== Table Comparison (original v. subset) ======\n");
const TableMap* tables = font->GetTableMap();
for (TableMap::const_iterator it = tables->begin(),
e = tables->end(); it != e; ++it) {
char *name = TagToString(it->first);
int32_t size = it->second->DataLength();
fprintf(out, "-- %s: %d (%lf%%) ", name, size,
TableSizePercent(font, it->first));
delete[] name;
Ptr<FontDataTable> new_table = new_font->GetTable(it->first);
int32_t new_size = 0;
double size_percent = 0;
if (new_table) {
new_size = new_table->DataLength();
size_percent = subtly::TableSizePercent(new_font, it->first);
}
if (new_size == size) {
fprintf(out, "| same size\n");
} else {
fprintf(out, "-> %d (%lf%%) | %lf%% of original\n", new_size,
size_percent, static_cast<double>(new_size) / size * 100);
}
}
}
void PrintStats(FILE* out, Font* font) {
fprintf(out, "====== Table Stats ======\n");
const TableMap* tables = font->GetTableMap();
for (TableMap::const_iterator it = tables->begin(),
e = tables->end(); it != e; ++it) {
char *name = TagToString(it->first);
int32_t size = it->second->DataLength();
fprintf(out, "-- %s: %d (%lf%%)\n", name, size,
TableSizePercent(font, it->first));
delete[] name;
}
}
}
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