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// Game_Music_Emu 0.6-pre. http://www.slack.net/~ant/
#include "Gme_Loader.h"
#include "blargg_endian.h"
/* Copyright (C) 2003-2008 Shay Green. This module is free software; you
can redistribute it and/or modify it under the terms of the GNU Lesser
General Public License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version. This
module is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
details. You should have received a copy of the GNU Lesser General Public
License along with this module; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
#include "blargg_source.h"
void Gme_Loader::unload()
{
file_begin_ = NULL;
file_end_ = NULL;
file_data.clear();
}
Gme_Loader::Gme_Loader()
{
warning_ = NULL;
Gme_Loader::unload();
blargg_verify_byte_order(); // used by most emulator types, so save them the trouble
}
Gme_Loader::~Gme_Loader() { }
blargg_err_t Gme_Loader::load_mem_( byte const data [], int size )
{
require( data != file_data.begin() ); // load_mem_() or load_() must be overridden
Mem_File_Reader in( data, size );
return load_( in );
}
inline blargg_err_t Gme_Loader::load_mem_wrapper( byte const data [], int size )
{
file_begin_ = data;
file_end_ = data + size;
return load_mem_( data, size );
}
blargg_err_t Gme_Loader::load_( Data_Reader& in )
{
RETURN_ERR( file_data.resize( in.remain() ) );
RETURN_ERR( in.read( file_data.begin(), file_data.size() ) );
return load_mem_wrapper( file_data.begin(), file_data.size() );
}
blargg_err_t Gme_Loader::post_load_( blargg_err_t err )
{
if ( err )
{
unload();
return err;
}
return post_load();
}
blargg_err_t Gme_Loader::load_mem( void const* in, long size )
{
pre_load();
return post_load_( load_mem_wrapper( (byte const*) in, (int) size ) );
}
blargg_err_t Gme_Loader::load( Data_Reader& in )
{
pre_load();
return post_load_( load_( in ) );
}
blargg_err_t Gme_Loader::load_file( const char path [] )
{
pre_load();
GME_FILE_READER in;
RETURN_ERR( in.open( path ) );
return post_load_( load_( in ) );
}
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