1 | //====================================================================== |
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2 | // |
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3 | // Project: XTIDE Universal BIOS, Serial Port Server |
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4 | // |
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5 | // File: FlatImage.h - Header file for basic flat disk image support |
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6 | // |
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7 | |
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8 | // |
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9 | // XTIDE Universal BIOS and Associated Tools |
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10 | // Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team. |
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11 | // |
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12 | // This program is free software; you can redistribute it and/or modify |
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13 | // it under the terms of the GNU General Public License as published by |
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14 | // the Free Software Foundation; either version 2 of the License, or |
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15 | // (at your option) any later version. |
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16 | // |
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17 | // This program is distributed in the hope that it will be useful, |
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18 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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20 | // GNU General Public License for more details. |
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21 | // Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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22 | // |
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23 | |
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24 | #include "Library.h" |
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25 | |
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26 | class FlatImage : public Image |
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27 | { |
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28 | private: |
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29 | class FileAccess fp; |
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30 | |
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31 | public: |
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32 | FlatImage( char *name, int p_readOnly, int p_drive, int p_create, unsigned long p_cyl, unsigned long p_head, unsigned long p_sect, int p_useCHS ) : Image( name, p_readOnly, p_drive, p_create, p_cyl, p_head, p_sect, p_useCHS ) |
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33 | { |
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34 | long filesize; |
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35 | |
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36 | if( p_create ) |
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37 | { |
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38 | char buff[512]; |
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39 | unsigned long size; |
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40 | double sizef; |
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41 | FileAccess cf; |
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42 | char sizeChar; |
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43 | |
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44 | size = (unsigned long) p_cyl * (unsigned long) p_sect * (unsigned long) p_head; |
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45 | if( size > cf.MaxSectors ) |
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46 | log( -1, "'%s', can't create flat file with size greater than %lu 512-byte sectors", name, cf.MaxSectors ); |
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47 | sizef = size / 2048.0; // 512 byte sectors -> MB |
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48 | sizeChar = 'M'; |
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49 | if( sizef < 1 ) |
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50 | { |
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51 | sizef *= 1024; |
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52 | sizeChar = 'K'; |
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53 | } |
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54 | |
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55 | if( cf.Create( name ) ) |
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56 | { |
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57 | memset( &buff[0], 0, 512 ); |
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58 | while( size-- ) |
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59 | cf.Write( &buff[0], 512 ); |
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60 | |
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61 | if( p_cyl > 1024 ) |
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62 | log( 0, "Created file '%s', size %.2lf %cB", name, sizef, sizeChar ); |
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63 | else |
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64 | log( 0, "Created file '%s', geometry %u:%u:%u, size %.2lf %cB", name, p_cyl, p_head, p_sect, sizef, sizeChar ); |
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65 | cf.Close(); |
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66 | } |
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67 | } |
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68 | |
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69 | fp.Open( name ); |
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70 | |
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71 | totallba = fp.SizeSectors(); |
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72 | |
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73 | init( name, p_readOnly, p_drive, p_cyl, p_head, p_sect, p_useCHS ); |
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74 | } |
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75 | |
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76 | FlatImage::~FlatImage() |
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77 | { |
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78 | fp.Close(); |
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79 | } |
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80 | |
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81 | void seekSector( unsigned long lba ) |
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82 | { |
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83 | fp.SeekSectors( lba ); |
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84 | } |
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85 | |
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86 | void writeSector( void *buff ) |
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87 | { |
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88 | fp.Write( buff, 512 ); |
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89 | } |
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90 | |
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91 | void readSector( void *buff ) |
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92 | { |
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93 | fp.Read( buff, 512 ); |
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94 | } |
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95 | }; |
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96 | |
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