SectionHeaders.h

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#pragma once
/*
 * Original work Copyright 2009 - 2010 Kevin Ackley (kackley@gwi.net)
 * Modified work Copyright 2018 - 2020 Andy Maloney <asmaloney@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person or organization
 * obtaining a copy of the software and accompanying documentation covered by
 * this license (the "Software") to use, reproduce, display, distribute,
 * execute, and transmit the Software, and to prepare derivative works of the
 * Software, and to permit third-parties to whom the Software is furnished to
 * do so, all subject to the following:
 *
 * The copyright notices in the Software and this entire statement, including
 * the above license grant, this restriction and the following disclaimer,
 * must be included in all copies of the Software, in whole or in part, and
 * all derivative works of the Software, unless such copies or derivative
 * works are solely in the form of machine-executable object code generated by
 * a source language processor.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
 * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */
 
#include "Common.h"
 
namespace e57
{
   enum
   {
      BLOB_SECTION = 0,
      COMPRESSED_VECTOR_SECTION,
   };
 
   struct BlobSectionHeader
   {
      const uint8_t sectionId = BLOB_SECTION;
 
      uint8_t reserved1[7] = {};         // must be zero
      uint64_t sectionLogicalLength = 0; // byte length of whole section
 
#ifdef E57_DEBUG
      void dump( int indent = 0, std::ostream &os = std::cout );
#endif
   };
 
   struct CompressedVectorSectionHeader
   {
      const uint8_t sectionId = COMPRESSED_VECTOR_SECTION;
 
      uint8_t reserved1[7] = {};         // must be zero
      uint64_t sectionLogicalLength = 0; // byte length of whole section
      uint64_t dataPhysicalOffset = 0;   // offset of first data packet
      uint64_t indexPhysicalOffset = 0;  // offset of first index packet
 
      CompressedVectorSectionHeader();
      void verify( uint64_t filePhysicalSize = 0 );
 
#ifdef E57_DEBUG
      void dump( int indent = 0, std::ostream &os = std::cout ) const;
#endif
   };
}