[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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| 8 | #include "library.h" |
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| 9 | |
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| 10 | class FlatImage : public Image |
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| 11 | { |
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| 12 | private: |
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[219] | 13 | class FileAccess fp; |
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[209] | 14 | |
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| 15 | public: |
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[219] | 16 | 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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| 17 | { |
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| 18 | long filesize; |
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[209] | 19 | |
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[219] | 20 | if( p_create ) |
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| 21 | { |
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| 22 | char buff[512]; |
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| 23 | unsigned long size; |
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| 24 | double sizef; |
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| 25 | FileAccess cf; |
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[259] | 26 | char sizeChar; |
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[219] | 27 | |
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| 28 | size = (unsigned long) p_cyl * (unsigned long) p_sect * (unsigned long) p_head; |
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| 29 | if( size > cf.MaxSectors ) |
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| 30 | log( -1, "'%s', can't create flat file with size greater than %lu 512-byte sectors", name, cf.MaxSectors ); |
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| 31 | sizef = size / 2048.0; // 512 byte sectors -> MB |
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[259] | 32 | sizeChar = 'M'; |
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| 33 | if( sizef < 1 ) |
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| 34 | { |
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| 35 | sizef *= 1024; |
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| 36 | sizeChar = 'K'; |
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| 37 | } |
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[219] | 38 | |
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[225] | 39 | if( cf.Create( name ) ) |
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| 40 | { |
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| 41 | memset( &buff[0], 0, 512 ); |
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| 42 | while( size-- ) |
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| 43 | cf.Write( &buff[0], 512 ); |
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| 44 | |
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| 45 | if( p_cyl > 1024 ) |
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[259] | 46 | log( 0, "Created file '%s', size %.2lf %cB", name, sizef, sizeChar ); |
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[225] | 47 | else |
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[259] | 48 | 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] | 49 | cf.Close(); |
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| 50 | } |
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[219] | 51 | } |
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| 52 | |
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| 53 | fp.Open( name ); |
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| 54 | |
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| 55 | totallba = fp.SizeSectors(); |
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| 56 | |
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| 57 | init( name, p_readOnly, p_drive, p_cyl, p_head, p_sect, p_useCHS ); |
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| 58 | } |
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| 59 | |
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| 60 | FlatImage::~FlatImage() |
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| 61 | { |
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| 62 | fp.Close(); |
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| 63 | } |
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| 64 | |
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| 65 | void seekSector( unsigned long lba ) |
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| 66 | { |
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| 67 | fp.SeekSectors( lba ); |
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| 68 | } |
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| 69 | |
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| 70 | void writeSector( void *buff ) |
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| 71 | { |
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| 72 | fp.Write( buff, 512 ); |
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| 73 | } |
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| 74 | |
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| 75 | void readSector( void *buff ) |
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| 76 | { |
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| 77 | fp.Read( buff, 512 ); |
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| 78 | } |
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[209] | 79 | }; |
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| 80 | |
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