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+/* |
+ * jconfig.txt |
+ * |
+ * This file was part of the Independent JPEG Group's software: |
+ * Copyright (C) 1991-1994, Thomas G. Lane. |
+ * It was modified by The libjpeg-turbo Project to include only code relevant |
+ * to libjpeg-turbo. |
+ * For conditions of distribution and use, see the accompanying README.ijg |
+ * 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 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_UNSIGNED__ |
+ |
+/* Define this if your system has an ANSI-conforming <stddef.h> file. |
+ */ |
+#define HAVE_STDDEF_H |
+ |
+/* Define this if your system has an ANSI-conforming <stdlib.h> file. |
+ */ |
+#define HAVE_STDLIB_H |
+ |
+/* Define this if your system does not have an ANSI/SysV <string.h>, |
+ * but does have a BSD-style <strings.h>. |
+ */ |
+#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 |
+ * <sys/types.h> instead. |
+ */ |
+#undef NEED_SYS_TYPES_H |
+ |
+/* 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 |
+ |
+/* Define "boolean" as unsigned char, not int, on Windows systems. |
+ */ |
+#ifdef _WIN32 |
+#ifndef __RPCNDR_H__ /* don't conflict if rpcndr.h already read */ |
+typedef unsigned char boolean; |
+#endif |
+#define HAVE_BOOLEAN /* prevent jmorecfg.h from redefining it */ |
+#endif |
+ |
+ |
+/* |
+ * 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 |
+ |
+/* 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 */ |