[209] | 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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[376] | 8 | // |
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| 9 | // XTIDE Universal BIOS and Associated Tools |
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| 10 | // Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 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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[209] | 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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[219] | 29 | class FileAccess fp; |
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[209] | 30 | |
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| 31 | public: |
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[219] | 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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[209] | 35 | |
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[219] | 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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[259] | 42 | char sizeChar; |
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[219] | 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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[259] | 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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[219] | 54 | |
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[225] | 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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[259] | 62 | log( 0, "Created file '%s', size %.2lf %cB", name, sizef, sizeChar ); |
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[225] | 63 | else |
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[259] | 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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[225] | 65 | cf.Close(); |
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| 66 | } |
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[219] | 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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[209] | 95 | }; |
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| 96 | |
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