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- /* Catacomb Armageddon Source Code
- * Copyright (C) 1993-2014 Flat Rock Software
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- //
- // UNIT : JAM_IO.h
- //
- // FUNCTION : General defines, prototypes, typedefs used in all the
- // supported compression techniques used in JAMPAK Ver x.x
- //
- //
- //==========================================================================
- //
- // PARAMETER PASSING TYPES
- //
- //
- // SOURCE PARAMS (LO BYTE)
- #define SRC_FILE (0x0001) // GE Buffered IO
- #define SRC_FFILE (0x0002) // Stdio File IO (fwrite etc.)
- #define SRC_MEM (0x0004) // Std void ptr (alloc etc)
- #define SRC_BFILE (0x0008) // Buffered File I/O
- #define SRC_TYPES (SRC_FILE | SRC_FFILE | SRC_MEM | SRC_BFILE)
- // DESTINATION PARAMS (HI BYTE)
- #define DEST_FILE (0x0100) // GE Buffered IO
- #define DEST_FFILE (0x0200) // Stdio File IO (fwrite etc.)
- #define DEST_MEM (0x0400) // Std void ptr (alloc etc)
- #define DEST_IMEM (0x0800) // ID Memory alloc
- #define DEST_TYPES (DEST_FILE | DEST_FFILE | DEST_MEM | DEST_IMEM)
- //=========================================================================
- //
- // FILE CHUNK IDs
- //
- // NOTE: The only reason for changing from COMP to CMP1 and having multi
- // comp header structs is for downward compatablity.
- //
- #define COMP ("COMP") // Comp type is ct_LZW ALWAYS!
- #define CMP1 ("CMP1") // Comp type is determined in header.
- //
- // COMPRESSION TYPES
- //
- typedef enum ct_TYPES
- {
- ct_NONE = 0, // No compression - Just data..Rarely used!
- ct_LZW, // LZW data compression
- ct_LZH,
- } ct_TYPES;
- //
- // FILE CHUNK HEADER FORMATS
- //
- struct COMPStruct
- {
- unsigned long DecompLen;
- };
- struct CMP1Header
- {
- unsigned CompType; // SEE: ct_TYPES above for list of pos.
- unsigned long OrginalLen; // Orginal FileLength of compressed Data.
- unsigned long CompressLen; // Length of data after compression (A MUST for LZHUFF!)
- };
- //---------------------------------------------------------------------------
- //
- // FUNCTION PROTOTYPEING
- //
- //---------------------------------------------------------------------------
- char WritePtr(long outfile, unsigned char data, unsigned PtrType);
- int ReadPtr(long infile, unsigned PtrType);
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