htflt.cc

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/* 
 *      HT Editor
 *      htelf.cc
 *
 *      Copyright (C) 1999-2002 Stefan Weyergraf (stefan@weyergraf.de)
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      This program 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 General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "log.h"
#include "htflt.h"
#include "htflthd.h"
#include "htfltimg.h"
#include "htendian.h"
#include "stream.h"
#include "tools.h"

#include "fltstruc.h"

#include <stdlib.h>

static format_viewer_if *htflt_ifs[] = {
        &htfltheader_if,
        &htfltimage_if,
        0
};

static ht_view *htflt_init(bounds *b, ht_streamfile *file, ht_format_group *format_group)
{
        byte ident[4];
        file->seek(0);
        file->read(&ident, sizeof ident);
        if ((ident[0]!=FLTMAG0) || (ident[1]!=FLTMAG1) ||
                (ident[2]!=FLTMAG2) || (ident[3]!=FLTMAG3) ) return 0;
                
        ht_flt *g=new ht_flt();
        g->init(b, file, htflt_ifs, format_group, 0);
        return g;
}

format_viewer_if htflt_if = {
        htflt_init,
        0
};

/*
 *      CLASS ht_flt
 */
void ht_flt::init(bounds *b, ht_streamfile *f, format_viewer_if **ifs, ht_format_group *format_group, FILEOFS header_ofs)
{
        ht_format_group::init(b, VO_SELECTABLE | VO_BROWSABLE | VO_RESIZE, DESC_FLT, f, false, true, 0, format_group);
        VIEW_DEBUG_NAME("ht_flt");

        LOG("%s: FLAT: found header at %08x", file->get_filename(), header_ofs);
        
        ht_flt_shared_data *flt_shared=(ht_flt_shared_data *)malloc(sizeof(ht_flt_shared_data));
        
        shared_data=flt_shared;
        flt_shared->header_ofs=header_ofs;

        /* read header */
        file->seek(header_ofs);
        file->read(&flt_shared->header, sizeof flt_shared->header);
        create_host_struct(&flt_shared->header, FLAT_HEADER_struct, big_endian);

        flt_shared->code_start = sizeof flt_shared->header;
        flt_shared->code_end = flt_shared->header.data_start;
        flt_shared->data_start = flt_shared->header.data_start;
        flt_shared->data_end = flt_shared->header.data_end;
        flt_shared->bss_start = flt_shared->header.data_end;
        flt_shared->bss_end = flt_shared->header.bss_end;
        /* init ifs */
        ht_format_group::init_ifs(ifs);
}

void ht_flt::done()
{
        ht_format_group::done();
        ht_flt_shared_data *flt_shared=(ht_flt_shared_data *)shared_data;
        free(flt_shared);
}

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