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// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// any later version.
//
// 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 "cdsk.h"
CDisk::CDisk()
{
m_bHasData = FALSE;
m_pbtMemory = NULL;
m_iMaxSectorWritten = 0;
#ifdef _MEMORY_DUMP_
printf( "CDisk constructed: %p\n", this );
#endif
}
CDisk::~CDisk()
{
if ( m_pbtMemory )
{
delete [] m_pbtMemory;
m_pbtMemory = NULL;
}
#ifdef _MEMORY_DUMP_
printf( "CDisk destructed: %p\n", this );
#endif
}
BOOL CDisk::Duplicate( CDisk* pDisk, DISK_GEOMETRY* pGeoForced )
{
DISK_GEOMETRY* pGeo = pGeoForced;
if ( !pGeo )
pGeo = &( pDisk->m_geometry );
if ( !Format( pGeo ) )
return FALSE;
memcpy( m_pbtMemory, pDisk->m_pbtMemory, pDisk->m_iAllocated );
m_iMaxSectorWritten = pDisk->m_iMaxSectorWritten;
return TRUE;
}
BOOL CDisk::Format( DISK_GEOMETRY* pgeo )
{
m_iMaxSectorWritten = 0;
int iSectors = pgeo->iSides * pgeo->iTracks * pgeo->iSectorsPerTrack;
if ( m_pbtMemory )
delete [] m_pbtMemory;
m_iAllocated = iSectors * pgeo->iBytesPerSector;
m_pbtMemory = new BYTE [ m_iAllocated ];
if ( !m_pbtMemory )
{
sprintf( m_szLastError, "DISK: Can't format - Not enough memory!" );
return FALSE;
}
memset( m_pbtMemory, 0, m_iAllocated );
m_geometry.iSides = pgeo->iSides;
m_geometry.iTracks = pgeo->iTracks;
m_geometry.iSectorsPerTrack = pgeo->iSectorsPerTrack;
m_geometry.iBytesPerSector = pgeo->iBytesPerSector;
m_geometry.iSectors = iSectors;
return TRUE;
}
BOOL CDisk::ReadSector( void* pBuf, int iStartSec )
{
if ( iStartSec && ( iStartSec <= m_geometry.iSectors ) )
memcpy( pBuf, m_pbtMemory + ( iStartSec - 1 ) * m_geometry.iBytesPerSector, m_geometry.iBytesPerSector );
else
{
sprintf( m_szLastError, "DISK: Reading non-existent sector: %04X", iStartSec );
return FALSE;
}
return TRUE;
}
BOOL CDisk::WriteSector( int iStartSec, void* pBuf )
{
//printf( " ws: %d ", iStartSec );
if ( iStartSec && ( iStartSec <= m_geometry.iSectors ) )
memcpy( m_pbtMemory + ( iStartSec - 1 ) * m_geometry.iBytesPerSector, pBuf, m_geometry.iBytesPerSector );
else
{
sprintf( m_szLastError, "DISK: Writing non-existent sector: %04X", iStartSec );
return FALSE;
}
if ( iStartSec > m_iMaxSectorWritten )
m_iMaxSectorWritten = iStartSec;
return TRUE;
}
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