172972394a
libjpeg-turbo has never supported non-ANSI C compilers. Per the spec, ANSI C compilers must have locale.h, stddef.h, stdlib.h, memset(), memcpy(), unsigned char, and unsigned short. They must also handle undefined structures.
93 lines
3.1 KiB
Plaintext
93 lines
3.1 KiB
Plaintext
/*
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* jconfig.txt
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*
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* This file was part of the Independent JPEG Group's software:
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* Copyright (C) 1991-1994, Thomas G. Lane.
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* It was modified by The libjpeg-turbo Project to include only code relevant
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* to libjpeg-turbo.
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* For conditions of distribution and use, see the accompanying README.ijg
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* file.
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*
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* This file documents the configuration options that are required to
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* customize the JPEG software for a particular system.
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*
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* The actual configuration options for a particular installation are stored
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* in jconfig.h. On many machines, jconfig.h can be generated automatically
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* or copied from one of the "canned" jconfig files that we supply. But if
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* you need to generate a jconfig.h file by hand, this file tells you how.
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*
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* DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING.
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* EDIT A COPY NAMED JCONFIG.H.
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*/
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/*
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* These symbols indicate the properties of your machine or compiler.
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* #define the symbol if yes, #undef it if no.
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*/
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/* Define "boolean" as unsigned char, not int, on Windows systems.
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*/
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#ifdef _WIN32
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#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */
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typedef unsigned char boolean;
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#endif
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#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */
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#endif
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/*
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* The following options affect code selection within the JPEG library,
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* but they don't need to be visible to applications using the library.
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* To minimize application namespace pollution, the symbols won't be
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* defined unless JPEG_INTERNALS has been defined.
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*/
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#ifdef JPEG_INTERNALS
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/* Define this if your compiler implements ">>" on signed values as a logical
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* (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift,
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* which is the normal and rational definition.
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*/
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#undef RIGHT_SHIFT_IS_UNSIGNED
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#endif /* JPEG_INTERNALS */
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/*
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* The remaining options do not affect the JPEG library proper,
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* but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c).
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* Other applications can ignore these.
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*/
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#ifdef JPEG_CJPEG_DJPEG
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/* These defines indicate which image (non-JPEG) file formats are allowed. */
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#define BMP_SUPPORTED /* BMP image file format */
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#define GIF_SUPPORTED /* GIF image file format */
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#define PPM_SUPPORTED /* PBMPLUS PPM/PGM image file format */
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#define TARGA_SUPPORTED /* Targa image file format */
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/* Define this if you want to name both input and output files on the command
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* line, rather than using stdout and optionally stdin. You MUST do this if
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* your system can't cope with binary I/O to stdin/stdout. See comments at
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* head of cjpeg.c or djpeg.c.
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*/
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#undef TWO_FILE_COMMANDLINE
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/* By default, we open image files with fopen(..., "rb") or fopen(..., "wb").
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* This is necessary on systems that distinguish text files from binary files,
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* and is harmless on most systems that don't. If you have one of the rare
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* systems that complains about the "b" spec, define this symbol.
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*/
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#undef DONT_USE_B_MODE
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/* Define this if you want percent-done progress reports from cjpeg/djpeg.
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*/
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#undef PROGRESS_REPORT
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#endif /* JPEG_CJPEG_DJPEG */
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