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build 171031: reduced footprint for binary region terrain file

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This commit is contained in:
tmj-fstate
2017-10-31 21:43:31 +01:00
parent 071a156527
commit ffbaacdb0e
6 changed files with 86 additions and 24 deletions
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45
scene.cpp
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@@ -224,6 +224,11 @@ basic_cell::deserialize( std::istream &Input ) {
while( itemcount-- ) {
m_lines.emplace_back( lines_node().deserialize( Input ) );
}
// cell activation flag
m_active = (
( false == m_shapesopaque.empty() )
|| ( false == m_shapestranslucent.empty() )
|| ( false == m_lines.empty() ) );
}
// adds provided shape to the cell
@@ -877,18 +882,27 @@ basic_region::serialize( std::string const &Scenariofile ) const {
std::ofstream output { filename, std::ios::binary };
// region file version 0
// region file version 1
// header: EU07SBT + version (0-255)
sn_utils::ls_uint32( output, MAKE_ID4( 'E', 'U', '0', '7' ) );
sn_utils::ls_uint32( output, MAKE_ID4( 'S', 'B', 'T', 0 ) );
sn_utils::ls_uint32( output, MAKE_ID4( 'S', 'B', 'T', 1 ) );
// sections
// TBD, TODO: build table of sections and file offsets, if we postpone section loading until they're within range
for( auto section : m_sections ) {
// length of section data, followed by section data (if any)
std::uint32_t sectioncount { 0 };
for( auto *section : m_sections ) {
if( section != nullptr ) {
++sectioncount;
}
}
// section count, followed by section data
sn_utils::ls_uint32( output, sectioncount );
std::uint32_t sectionindex { 0 };
for( auto *section : m_sections ) {
// section data: section index, followed by length of section data, followed by section data
if( section != nullptr ) {
sn_utils::ls_uint32( output, sectionindex );
section->serialize( output ); }
else {
sn_utils::ls_uint32( output, 0 ); }
++sectionindex;
}
}
@@ -907,7 +921,7 @@ basic_region::deserialize( std::string const &Scenariofile ) {
if( false == FileExists( filename ) ) {
return false;
}
// region file version 0
// region file version 1
// file type and version check
std::ifstream input( filename, std::ios::binary );
@@ -915,20 +929,21 @@ basic_region::deserialize( std::string const &Scenariofile ) {
uint32_t headertype { sn_utils::ld_uint32( input ) };
if( ( headermain != MAKE_ID4( 'E', 'U', '0', '7' )
|| ( headertype != MAKE_ID4( 'S', 'B', 'T', 0 ) ) ) ) {
|| ( headertype != MAKE_ID4( 'S', 'B', 'T', 1 ) ) ) ) {
// wrong file type
ErrorLog( "Bad file: \"" + filename + "\" is of either unrecognized type or version" );
WriteLog( "Bad file: \"" + filename + "\" is of either unrecognized type or version" );
return false;
}
// sections
// TBD, TODO: build table of sections and file offsets, if we postpone section loading until they're within range
for( auto &section : m_sections ) {
// length of section data, followed by section data (if any)
// section count
auto sectioncount { sn_utils::ld_uint32( input ) };
while( sectioncount-- ) {
// section index, followed by section data size, followed by section data
auto *&section { m_sections[ sn_utils::ld_uint32( input ) ] };
auto const sectionsize { sn_utils::ld_uint32( input ) };
if( sectionsize != 0 ) {
section = new basic_section();
section->deserialize( input );
}
section = new basic_section();
section->deserialize( input );
}
return true;