Function Format_DOS33_Disk

source/ProDOS_Utils.cpp:964–1012

}

void Format_DOS33_Disk( const std::string & pathname, FrameBase *pFrame )
{
	FILE *hFile = fopen( pathname.c_str(), "r+b" );
	if (hFile)
	{
		fseek( hFile, 0, SEEK_END );
		size_t nDiskSize = ftell( hFile );
		fseek( hFile, 0, SEEK_SET );

		// Verify floppy size is <= 160KB (max 40 tracks) since that is the largest supported by DOS 3.3
		// TODO: Maybe use CImageBase::IsValidImageSize() ?
		size_t nMinDiskSize = 34         *  TRACK_DENIBBLIZED_SIZE;
		size_t nMaxDiskSize = TRACKS_MAX * TRACK_DENIBBLIZED_SIZE;

		std::string sMessage;
		if (nDiskSize < nMinDiskSize)
		{
			sMessage = StrFormat( "ERROR: Disk image size (%zu bytes) < minimum DOS 3.3 image size (%zu bytes)", nDiskSize, nMinDiskSize );
			pFrame->FrameMessageBox( sMessage.c_str(), "Format", MB_ICONERROR | MB_OK);
		}
		else
		if (nDiskSize > nMaxDiskSize)
		{
			sMessage = StrFormat( "ERROR: Disk image size (%zu bytes) > maximum DOS 3.3 image size (%zu bytes)", nDiskSize, nMaxDiskSize );
			pFrame->FrameMessageBox( sMessage.c_str(), "Format", MB_ICONERROR | MB_OK);
		}
		else
		{
			std::vector<uint8_t> pDiskBytes(nDiskSize);
			size_t nReadSize = fread( pDiskBytes.data(), 1, nDiskSize, hFile );
			assert( nReadSize == nDiskSize );

			int VTOC_TRACK = 0x11; // TODO: Allow user to over-ride via command-line argument? --vtoc 17
			Util_DOS33_FormatFileSystem( pDiskBytes.data(), nDiskSize, VTOC_TRACK );

			fseek( hFile, 0, SEEK_SET );
			size_t nWroteSize = fwrite( pDiskBytes.data(), 1, nReadSize, hFile );
			if (nWroteSize != nDiskSize)
			{
				pFrame->FrameMessageBox( "ERROR: Unable to write DOS 3.3 file system", "Format", MB_ICONWARNING | MB_OK);
			}
		}
		fclose( hFile );
	}
	else
	{
		pFrame->FrameMessageBox( "ERROR: Unable to open disk image for writing DOS 3.3 file system", "Format", MB_ICONWARNING | MB_OK);
	}
}