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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 4.iso
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src
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haeberli
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include
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tiffcomp.h
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1994-08-01
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/* $Header: /usr/people/sam/tiff/libtiff/RCS/tiffcomp.h,v 1.32 92/10/30 11:43:31 sam Exp $ */
/*
* Copyright (c) 1990, 1991, 1992, 1993 Sam Leffler
* Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that (i) the above copyright notices and this permission notice appear in
* all copies of the software and related documentation, and (ii) the names of
* Sam Leffler and Silicon Graphics may not be used in any advertising or
* publicity relating to the software without the specific, prior written
* permission of Sam Leffler and Silicon Graphics.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _COMPAT_
#define _COMPAT_
/*
* This file contains a hodgepodge of definitions and
* declarations that are needed to provide compatibility
* between the native system and the base implementation
* that the library assumes.
*
* NB: This file is a mess.
*/
/*
* If nothing has been specified about the use of function prototypes,
* deduce it's use from thje compilation environment. Note that if
* we decide protototypes should be used, we also assume that const is
* supported. If this is not true, then the user must force the
* definitions in the Makefile or similar.
*/
#if !defined(USE_PROTOTYPES)
#if defined(__STDC__) || defined(__EXTENDED__) || defined(c_plusplus) || defined(__cplusplus)
#define USE_PROTOTYPES 1
#define USE_CONST 1
#endif /* __STDC__ || __EXTENDED__ || c_plusplus || __cplusplus */
#endif /* !defined(USE_PROTOTYPES) */
/*
* If nothing has been specified about the
* use of const, define it to be void.
*/
#if !USE_CONST
#if !defined(const)
#define const
#endif
#endif
/*
* Setup basic type definitions and function declaratations.
*/
#ifdef THINK_C
#include <unix.h>
#include <math.h>
#endif
#if USE_PROTOTYPES
#include <stdio.h>
#endif
#ifdef applec
#include <types.h>
#else
#ifndef THINK_C
#include <sys/types.h>
#endif
#endif
#ifdef VMS
#include <file.h>
#include <unixio.h>
#else
#include <fcntl.h>
#endif
#if defined(THINK_C) || defined(applec)
#include <stdlib.h>
typedef long off_t;
#define BSDTYPES
#endif
/*
* Workarounds for BSD lseek definitions.
*/
#if defined(SYSV) || defined(VMS)
#if defined(SYSV)
#include <unistd.h>
#endif
#define L_SET SEEK_SET
#define L_INCR SEEK_CUR
#define L_XTND SEEK_END
#endif /* defined(SYSV) || defined(VMS) */
#ifndef L_SET
#define L_SET 0
#define L_INCR 1
#define L_XTND 2
#endif
/*
* The library uses memset, memcpy, and memcmp.
* ANSI C and System V define these in string.h.
*/
#include <string.h>
/*
* The BSD typedefs are used throughout the library.
* If your system doesn't have them in <sys/types.h>,
* then define BSDTYPES in your Makefile.
*/
#ifdef BSDTYPES
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned int u_int;
typedef unsigned long u_long;
#endif
/*
* Default Read/Seek/Write definitions. These aren't really
* compatibility related and should probably go in tiffiop.h.
*/
#ifndef ReadOK
#define ReadOK(tif, buf, size) \
(TIFFReadFile(tif, (char *)buf, size) == size)
#endif
#ifndef SeekOK
#define SeekOK(tif, off) \
(TIFFSeekFile(tif, (long)off, L_SET) == (long)off)
#endif
#ifndef WriteOK
#define WriteOK(tif, buf, size) \
(TIFFWriteFile(tif, (char *)buf, size) == size)
#endif
/*
* dblparam_t is the type that a double precision
* floating point value will have on the parameter
* stack (when coerced by the compiler).
*/
#ifdef applec
typedef extended dblparam_t;
#else
typedef double dblparam_t;
#endif
/*
* Varargs parameter list handling...YECH!!!!
*/
#if defined(__STDC__) && !defined(USE_VARARGS)
#define USE_VARARGS 0
#endif
#if defined(USE_VARARGS)
#if USE_VARARGS
#include <varargs.h>
#define VA_START(ap, parmN) va_start(ap)
#else
#include <stdarg.h>
#define VA_START(ap, parmN) va_start(ap, parmN)
#endif
#endif /* defined(USE_VARARGS) */
/*
* Macros for declaring functions with and without
* prototypes--according to the definition of USE_PROTOTYPES.
*/
#if USE_PROTOTYPES
#define DECLARE1(f,t1,a1) f(t1 a1)
#define DECLARE2(f,t1,a1,t2,a2) f(t1 a1, t2 a2)
#define DECLARE3(f,t1,a1,t2,a2,t3,a3) f(t1 a1, t2 a2, t3 a3)
#define DECLARE4(f,t1,a1,t2,a2,t3,a3,t4,a4)\
f(t1 a1, t2 a2, t3 a3, t4 a4)
#define DECLARE5(f,t1,a1,t2,a2,t3,a3,t4,a4,t5,a5)\
f(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5)
#define DECLARE6(f,t1,a1,t2,a2,t3,a3,t4,a4,t5,a5,t6,a6)\
f(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5, t6 a6)
#define DECLARE1V(f,t1,a1) f(t1 a1 ...)
#define DECLARE2V(f,t1,a1,t2,a2) f(t1 a1, t2 a2, ...)
#define DECLARE3V(f,t1,a1,t2,a2,t3,a3) f(t1 a1, t2 a2, t3 a3, ...)
#else
#define DECLARE1(f,t1,a1) f(a1) t1 a1;
#define DECLARE2(f,t1,a1,t2,a2) f(a1,a2) t1 a1; t2 a2;
#define DECLARE3(f,t1,a1,t2,a2,t3,a3) f(a1, a2, a3) t1 a1; t2 a2; t3 a3;
#define DECLARE4(f,t1,a1,t2,a2,t3,a3,t4,a4) \
f(a1, a2, a3, a4) t1 a1; t2 a2; t3 a3; t4 a4;
#define DECLARE5(f,t1,a1,t2,a2,t3,a3,t4,a4,t5,a5)\
f(a1, a2, a3, a4, a5) t1 a1; t2 a2; t3 a3; t4 a4; t5 a5;
#define DECLARE6(f,t1,a1,t2,a2,t3,a3,t4,a4,t5,a5,t6,a6)\
f(a1, a2, a3, a4, a5, a6) t1 a1; t2 a2; t3 a3; t4 a4; t5 a5; t6 a6;
#if USE_VARARGS
#define DECLARE1V(f,t1,a1) \
f(a1, va_alist) t1 a1; va_dcl
#define DECLARE2V(f,t1,a1,t2,a2) \
f(a1, a2, va_alist) t1 a1; t2 a2; va_dcl
#define DECLARE3V(f,t1,a1,t2,a2,t3,a3) \
f(a1, a2, a3, va_alist) t1 a1; t2 a2; t3 a3; va_dcl
#else
"Help, I don't know how to handle this case: !USE_PROTOTYPES and !USE_VARARGS?"
#endif
#endif
#endif /* _COMPAT_ */