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111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
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#ifndef _WAD3_H_
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#define _WAD3_H_
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// WAD3 (Half-Life) Header and mip structs
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// WAD2 (Quake) Header and mip structs added by LordHavoc
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#define WADBUFSIZE 32768
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#define WAD2_TYPE_MIP 0x44
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#define WAD2_ID ( 'W' | 'A' << 8 | 'D' << 16 | '2' << 24 )
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#define WAD3_TYPE_MIP 0x43
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#define WAD3_ID ( 'W' | 'A' << 8 | 'D' << 16 | '3' << 24 )
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#define GET_MIP_DATA_SIZE( WIDTH, HEIGHT ) ( ( WIDTH * HEIGHT ) + ( WIDTH * HEIGHT / 4 ) + ( WIDTH * HEIGHT / 16 ) + ( WIDTH * HEIGHT / 64 ) )
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/*
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WAD3 pseudo-structure:
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WAD3 Header
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Mip section
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First mip
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Mip header
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First mip (width * height)
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Second mip (width * height / 4)
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Third mip (width * height / 16)
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Fourth mip (width * height / 64)
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Palette size (WORD)
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Palette (Palette size * 3)
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Padding (WORD)
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[...]
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Last mip
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Lump table
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First lump entry
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Lump header
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[...]
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Last lump entry
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WAD2 pseudo-structure:
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WAD2 Header
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Mip section
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First mip
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Mip header
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First mip (width * height)
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Second mip (width * height / 4)
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Third mip (width * height / 16)
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Fourth mip (width * height / 64)
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[...]
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Last mip
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Lump table
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First lump entry
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Lump header
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[...]
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Last lump entry
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*/
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#define DWORD unsigned int
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#define BYTE unsigned char
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#define WORD unsigned short int
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typedef struct
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{
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DWORD identification;
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DWORD numlumps;
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DWORD infotableofs; // Lump table
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} WAD3_HEADER, *LPWAD3_HEADER;
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typedef struct
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{
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DWORD filepos;
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DWORD disksize;
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DWORD size; // uncompressed
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BYTE type;
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BYTE compression;
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BYTE pad1, pad2;
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char name[16]; // must be null terminated
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} WAD3_LUMP, *LPWAD3_LUMP;
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typedef struct
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{
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char name[16];
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DWORD width, height;
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DWORD offsets[4]; // four mip maps stored
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} WAD3_MIP, *LPWAD3_MIP;
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typedef struct wadFile_s
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{
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FILE * fin;
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LPWAD3_HEADER lpHeader;
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LPWAD3_LUMP lpLump;
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LPWAD3_MIP lpMip;
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DWORD FileSize;
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unsigned long currentfile;
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char *wadfilename;
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} wadFile_t;
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wadFile_t *wadOpen( const char* path );
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wadFile_t *wadCleanup( wadFile_t *wf );
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int wadGoToFirstFile( wadFile_t *wf );
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int wadGetCurrentFileInfo( wadFile_t *wf, char *szFileName, unsigned long fileNameBufferSize, unsigned long *filesize );
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int wadGoToNextFile( wadFile_t *wf );
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int wadOpenCurrentFileByNum( wadFile_t *wf, unsigned long filenumber );
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void wadCloseCurrentFile( wadFile_t *wf );
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unsigned long wadReadCurrentFile( wadFile_t *wf, char *bufferptr, unsigned long size );
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#endif // #ifndef _WAD3_H_
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