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- /*****************************************************************************
- *
- * unixconf.h
- *
- * from DKBTrace (c) 1990 David Buck
- *
- * This header file contains all constants and types required to run on a
- * UNIX system.
- *
- * This software is freely distributable. The source and/or object code may be
- * copied or uploaded to communications services so long as this notice remains
- * at the top of each file. If any changes are made to the program, you must
- * clearly indicate in the documentation and in the programs startup message
- * who it was who made the changes. The documentation should also describe what
- * those changes were. This software may not be included in whole or in
- * part into any commercial package without the express written consent of the
- * author. It may, however, be included in other public domain or freely
- * distributed software so long as the proper credit for the software is given.
- *
- * This software is provided as is without any guarantees or warranty. Although
- * the author has attempted to find and correct any bugs in the software, he
- * is not responsible for any damage caused by the use of the software. The
- * author is under no obligation to provide service, corrections, or upgrades
- * to this package.
- *
- * Despite all the legal stuff above, if you do find bugs, I would like to hear
- * about them. Also, if you have any comments or questions, you may contact me
- * at the following address:
- *
- * David Buck
- * 22C Sonnet Cres.
- * Nepean Ontario
- * Canada, K2H 8W7
- *
- * I can also be reached on the following bulleton boards:
- *
- * OMX (613) 731-3419
- * Mystic (613) 596-4249 or (613) 596-4772
- *
- * Fidonet: 1:163/109.9
- * Internet: dbuck@ccs.carleton.ca
- * The "You Can Call Me RAY" BBS (708) 358-5611
- *
- * IBM Port by Aaron A. Collins. Aaron may be reached on the following BBS'es:
- *
- * The "You Can Call Me RAY" BBS (708) 358-5611
- * The Information Exchange BBS (708) 945-5575
- *
- *****************************************************************************/
-
- /* The following defines may be added when porting to other systems or
- other compilers. The defaults are shown here:
-
-
- #define PARAMS(x) x - use 'x' for ANSI, '()' for non ANSI
- #define EPSILON 1.0e-5 - a small value used for quartics
- #define FILE_NAME_LENGTH 150 - default file name length
- #define DBL double - floating point precision
- #define HUGE_VAL 1.0e+17 - a really big number
- #define DBL_FORMAT_STRING "%lf" - the string to use for scanfs of doubles
- #define DEFAULT_OUTPUT_FORMAT 'd' - the default +f format
- #define TEST_ABORT - code to test for ^C or abort
- (called on each pixel)
- #define RED_RAW_FILE_EXTENSION ".red" - for +fr, this is the extension for the
- red file
- #define GREEN_RAW_FILE_EXTENSION ".grn" - ditto for the green file
- #define BLUE_RAW_FILE_EXTENSION ".blu" - ditto again for the blue file
- #define STARTUP_DKB_TRACE - first executable statement of main
- (useful for initialization)
- #define PRINT_OTHER_CREDITS - used for people who extend dkbtrace.
- (put your own printf's here)
- #define FINISH_DKB_TRACE - last statement before exiting normally
- #define FILENAME_SEPARATOR "/" - the character that separates names
- in a path.
- #define setvbuf(w,x,y,z) - some systems don't understand setvbuf.
- If not, just define it away - it's
- not critical to the raytracer. It
- just buffers disk accesses.
- */
-
- /* By default, UNIX doesn't use ANSI prototyping */
-
- #ifdef _STDC_
- #define PARAMS(x) x
- #else
- #define PARAMS(x) ()
- #define volatile
- #endif
-
- #define ACOS acos
- #define SQRT sqrt
- #define POW pow
- #define COS cos
- #define SIN sin
- #define EPSILON 1.0e-5
-
- char *getenv PARAMS((char *name));
- char *malloc PARAMS((int size));
- void free PARAMS((void *));
-
- #define STARTUP_DKB_TRACE unix_init_dkb_trace();
- #ifndef max
- #define max(x,y) ((x<y)?y:x)
- #endif
-