text: /*
   * 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 "sfntly/table/bitmap/index_sub_table_format2.h"
  
  #include "sfntly/table/bitmap/eblc_table.h"
  
  namespace sfntly {
  
  // static
  int32_t IndexSubTableFormat2::GetDataLength(ReadableFontData* data,
                                              int32_t offset,
                                              int32_t first,
                                              int32_t last) {
    UNREFERENCED_PARAMETER(data);
    UNREFERENCED_PARAMETER(offset);
    UNREFERENCED_PARAMETER(first);
    UNREFERENCED_PARAMETER(last);
    return EblcTable::Offset::kIndexSubTable2Length;
  }
  
  IndexSubTableFormat2::IndexSubTableFormat2(ReadableFontData* data,
                                             int32_t first,
                                             int32_t last)
      : IndexSubTable(data, first, last) {
    image_size_ =
        data_->ReadULongAsInt(EblcTable::Offset::kIndexSubTable2_imageSize);
  }
  
  IndexSubTableFormat2::~IndexSubTableFormat2() {
  }
  
  int32_t IndexSubTableFormat2::NumGlyphs() {
    return last_glyph_index() - first_glyph_index() + 1;
  }
  
  int32_t IndexSubTableFormat2::GlyphOffset(int32_t glyph_id) {
    if (CheckGlyphRange(glyph_id)) {
      return image_data_offset() + (glyph_id - first_glyph_index()) * image_size_;
    }
    return -1;
  }
  
  int32_t IndexSubTableFormat2::GlyphLength(int32_t glyph_id) {
    if (CheckGlyphRange(glyph_id)) {
      return image_size_;
    }
    return -1;
  }
  
  }  // namespace sfntly
  