jpg.zip jconfig.h

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/* 
 * jconfig.doc 
 * 
 * Copyright (C) 1991-1994, Thomas G. Lane. 
 * This file is part of the Independent JPEG Group's software. 
 * For conditions of distribution and use, see the accompanying README file. 
 * 
 * This file documents the configuration options that are required to 
 * customize the JPEG software for a particular system. 
 * 
 * The actual configuration options for a particular installation are stored 
 * in jconfig.h.  On many machines, jconfig.h can be generated automatically 
 * or copied from one of the "canned" jconfig files that we supply.  But if 
 * you need to generate a jconfig.h file by hand, this file tells you how. 
 * 
 * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING. 
 * EDIT A COPY NAMED JCONFIG.H. 
 */ 
 
 
/* 
 * These symbols indicate the properties of your machine or compiler. 
 * #define the symbol if yes, #undef it if no. 
 */ 
 
/* Does your compiler support function prototypes? 
 * (If not, you also need to use ansi2knr, see install.doc) 
 */ 
#define HAVE_PROTOTYPES 
 
/* Does your compiler support the declaration "unsigned char" ? 
 * How about "unsigned short" ? 
 */ 
#define HAVE_UNSIGNED_CHAR 
#define HAVE_UNSIGNED_SHORT 
 
/* Define "void" as "char" if your compiler doesn't know about type void. 
 * NOTE: be sure to define void such that "void *" represents the most general 
 * pointer type, e.g., that returned by malloc(). 
 */ 
/* #define void char */ 
 
/* Define "const" as empty if your compiler doesn't know the "const" keyword. 
 */ 
/* #define const */ 
 
/* Define this if an ordinary "char" type is unsigned. 
 * If you're not sure, leaving it undefined will work at some cost in speed. 
 * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal. 
 */ 
#undef CHAR_IS_UNSIGNED 
 
/* Define this if your system has an ANSI-conforming  file. 
 */ 
#define HAVE_STDDEF_H 
 
/* Define this if your system has an ANSI-conforming  file. 
 */ 
#define HAVE_STDLIB_H 
 
/* Define this if your system does not have an ANSI/SysV , 
 * but does have a BSD-style . 
 */ 
#undef NEED_BSD_STRINGS 
 
/* Define this if your system does not provide typedef size_t in any of the 
 * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in 
 *  instead. 
 */ 
//#undef NEED_SYS_TYPES_H 
#define NEED_SYS_TYPES_H 
 
/* For 80x86 machines, you need to define NEED_FAR_POINTERS, 
 * unless you are using a large-data memory model or 80386 flat-memory mode. 
 * On less brain-damaged CPUs this symbol must not be defined. 
 * (Defining this symbol causes large data structures to be referenced through 
 * "far" pointers and to be allocated with a special version of malloc.) 
 */ 
#undef NEED_FAR_POINTERS 
 
/* Define this if your linker needs global names to be unique in less 
 * than the first 15 characters. 
 */ 
#undef NEED_SHORT_EXTERNAL_NAMES 
 
/* Although a real ANSI C compiler can deal perfectly well with pointers to 
 * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI 
 * and pseudo-ANSI compilers get confused.  To keep one of these bozos happy, 
 * define INCOMPLETE_TYPES_BROKEN.  This is not recommended unless you 
 * actually get "missing structure definition" warnings or errors while 
 * compiling the JPEG code. 
 */ 
#undef INCOMPLETE_TYPES_BROKEN 
 
 
/* 
 * The following options affect code selection within the JPEG library, 
 * but they don't need to be visible to applications using the library. 
 * To minimize application namespace pollution, the symbols won't be 
 * defined unless JPEG_INTERNALS has been defined. 
 */ 
 
#ifdef JPEG_INTERNALS 
 
/* Define this if your compiler implements ">>" on signed values as a logical 
 * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift, 
 * which is the normal and rational definition. 
 */ 
#undef RIGHT_SHIFT_IS_UNSIGNED 
 
 
#endif /* JPEG_INTERNALS */ 
 
 
/* 
 * The remaining options do not affect the JPEG library proper, 
 * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c). 
 * Other applications can ignore these. 
 */ 
 
#ifdef JPEG_CJPEG_DJPEG 
 
/* These defines indicate which image (non-JPEG) file formats are allowed. */ 
 
#define BMP_SUPPORTED		/* BMP image file format */ 
#define GIF_SUPPORTED		/* GIF image file format */ 
#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */ 
#undef RLE_SUPPORTED		/* Utah RLE image file format */ 
#define TARGA_SUPPORTED		/* Targa image file format */ 
 
/* Define this if you want to name both input and output files on the command 
 * line, rather than using stdout and optionally stdin.  You MUST do this if 
 * your system can't cope with binary I/O to stdin/stdout.  See comments at 
 * head of cjpeg.c or djpeg.c. 
 */ 
//#undef TWO_FILE_COMMANDLINE 
#define TWO_FILE_COMMANDLINE 
 
/* Define this if your system needs explicit cleanup of temporary files. 
 * This is crucial under MS-DOS, where the temporary "files" may be areas 
 * of extended memory; on most other systems it's not as important. 
 */ 
#undef NEED_SIGNAL_CATCHER 
 
/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb"). 
 * This is necessary on systems that distinguish text files from binary files, 
 * and is harmless on most systems that don't.  If you have one of the rare 
 * systems that complains about the "b" spec, define this symbol. 
 */ 
#undef DONT_USE_B_MODE 
 
/* Define this if you want percent-done progress reports from cjpeg/djpeg. 
 */ 
#undef PROGRESS_REPORT 
 
#endif /* JPEG_CJPEG_DJPEG */