/****************************************************************************
* ibmconf.h
*
* This file contains the IBM-PC specific defines. Rename to config.h when
* compiling for IBM-PC.
*
*
* from Persistence of Vision Raytracer
* Copyright 1993 Persistence of Vision Team
*---------------------------------------------------------------------------
* NOTICE: This source code file is provided so that users may experiment
* with enhancements to POV-Ray and to port the software to platforms other
* than those supported by the POV-Ray Team. There are strict rules under
* which you are permitted to use this file. The rules are in the file
* named POVLEGAL.DOC which should be distributed with this file. If
* POVLEGAL.DOC is not available or for more info please contact the POV-Ray
* Team Coordinator by leaving a message in CompuServe's Graphics Developer's
* Forum. The latest version of POV-Ray may be found there as well.
*
* This program is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
*
*****************************************************************************/
/* Below are several defines needed by the generic parts of POV. You
* may redefine them as needed in this config.h file.
*
* The following constants are needed by various POV modules. Each has
* a default (shown below) which is will be defined in frame.h if you don't
* define them here.
*
* #define EPSILON 1.0e-10 - a small value used for POLY
* #define FILE_NAME_LENGTH 150 - default file name length
* #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 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 FILENAME_SEPARATOR "/" - the character that separates names
* in a path.
* #define CASE_SENSITIVE_DEFAULT 2 - controls case sensitivity in DAT files
* #define READ_FILE_STRING "rb" - special binary (raw, uncooked)
* #define WRITE_FILE_STRING "wb" modes of fopen()
* #define APPEND_FILE_STRING "ab"
* #define NORMAL '0' - machine-specific PaletteOption settings
* #define GREY 'G'
*
* These routines are required by POV to compute trace times. The defaults
* shown below are defined in most versions of C. You may redefine them if
* your compiler doesn't support these. If time is completely unsupported
* define them as 0.
*
* #define START_TIME time(&tstart);
* #define STOP_TIME time(&tstop);
* #define TIME_ELAPSED difftime (tstop, tstart);
*
* Note difftime can be replaced with: #define TIME_ELAPSED (tstop - tstart);
* in some cases.
*
* These are optional routines that POV calls. You may define them
* or if undefined they will be defined as empty in frame.h.
*
* #define STARTUP_POVRAY - first executable statement of main
* (useful for initialization)
* #define PRINT_OTHER_CREDITS - used for people who extend the machine specific modules
* (put your own printf's here)
* #define TEST_ABORT - code to test for ^C or abort
* (called on each pixel)
* #define FINISH_POVRAY - last statement before exiting normally
* #define COOPERATE - called for multi-tasking
*
* These items are standard on some C compilers. If they are not defined
* on your compiler or are called something different you may define your
* own or use the defaults supplied in frame.h as shown below.
*
* #define DBL double - floating point precision
* #define ACOS acos - arc cosine of DBL
* #define SQRT sqrt - square root of DBL
* #define POW pow - x to the y power - x, y DBL
* #define COS cos - cosine of DBL
* #define SIN sin - sine of DBL
* #define labs(x) (long) ((x<0)?-x:x) - Returns the absolute value of long integer x
* #define max (x,y) ((x<y)?y:x) - greater of x and y
*
* On some systems "sprintf" returns the string rather than the length
* of the string. If the string is returned, define the following:
* #define STRLN(x) strlen(x)
*
* #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.
* This macro controls prototyping and is required by POV. Choose one
* of the two options below or if left undefined it will default to ANSI
* in frame.h
*
* #define PARAMS (x) x - do ANSI prototyping
* #define PARAMS (x) () - do K&R non-ANSI prototyping
*
* These allow command line vs non-command line versions and alternate
* main routines. Normally they should be undefined. Define them 1 if needed.
* #define ALTMAIN 1
* #define NOCMDLINE 1
****************************************************/
#ifdef _INTELC32_
#include <i32.h>
#include <float.h>
#endif
#ifdef __WATCOMC__ /* Perhaps we should always include */
#include <float.h> /* FLOAT.H? What does ANSI say?--CWM */
#endif
#ifndef GCCDOS
#include <conio.h>
#else
#include <pc.h>
#endif
#include <stdarg.h>
#include <stdlib.h>
#ifdef MATH_CO
#define DBL long double
#else
#define DBL double
#endif
#ifdef MATH_CO
#define DBL_FORMAT_STRING "%Lf"
#else
#define DBL_FORMAT_STRING "%lf"
#endif
#define RED_RAW_FILE_EXTENSION ".r8" /* PICLAB's "RAW" file format */
#define GREEN_RAW_FILE_EXTENSION ".g8" /* PICLAB's "RAW" file format */
#define BLUE_RAW_FILE_EXTENSION ".b8" /* PICLAB's "RAW" file format */
#define FILENAME_SEPARATOR "\\" /* weird 'ol IBM's like backslashes */
#if defined(MATH_CO) && !defined(__TURBOC__)
#define ACOS acosl
#define SQRT sqrtl
#define POW powl
#define COS cosl
#define SIN sinl
#define EPSILON 1.0e-15
#else
#define EPSILON 1.0e-5
#endif
#define DEFAULT_OUTPUT_FORMAT 't'
#define TEST_ABORT if (Options & EXITENABLE) if (kbhit()) { Stop_Flag = TRUE; getch(); }
/* defines for machine-specific PaletteOption settings */
#define NORMAL '0'
#define GREY 'G'
#define HSV '0'
#define P_332 '3'
#define HICOLOR 'H' /* 16 bits/pixel "high" color */
#define FULLCOLOR 'T' /* 24 bits/pixel "true" color */
#ifndef READ_ENV_VAR_BEFORE
#define READ_ENV_VAR_BEFORE if ((Option_String_Ptr = getenv("POVRAYOPT")) != NULL) read_options(Option_String_Ptr);
#endif
#ifndef READ_ENV_VAR_AFTER
#define READ_ENV_VAR_AFTER
#endif
/**********************************
* The defines below have nothing to do with the generic part of POV.
* They are entirely machine specific. In general do not include them
* when porting to other platforms.
***********************************/
#ifdef _INTELC32_
#define COMPILER_VER ".ibmicb"
#define CONFIG_MATH _control87(MCW_EM, MCW_EM);
#define FINISH_POVRAY exit(0);
#define CDECL _cdecl
#endif
#ifdef __ZTC__
#define QSORT_FUNCT_PARM const void *
#define COMPILER_VER ".ibmztc386"
#ifdef __SC__
#undef COMPILER_VER
#define COMPILER_VER ".ibmsym386"
#endif
#ifdef __LARGE__
#undef COMPILER_VER
#define COMPILER_VER ".ibmztc"
#ifdef __SC__
#undef COMPILER_VER
#define COMPILER_VER ".ibmsymc"
#endif
#endif
#endif
#ifdef GCCDOS
void main(int, char **);
#ifdef MK_FP
#undef MK_FP
#endif
#define MK_FP(seg, ofs) ((void *)(0xE0000000 + ((seg)<<4) + ofs))
#ifdef FP_OFF
#undef FP_OFF
#endif
#define FP_OFF(ptr) (unsigned short)(ptr)
#ifdef FP_SEG /* note: this produces a warning at >= /W3 */
#undef FP_SEG
#endif
#define FP_SEG(ptr) (unsigned short)(((unsigned long)ptr >> 16) & 0x0FFF)
#ifndef min
#define min(x,y) ((x)<(y)?(x):(y))
#endif
#ifndef max
#define max(x,y) ((x)>(y)?(x):(y))
#endif
#undef outpw( portid,v )
#undef outp( portid,v )
#undef inp( portid )
#define outpw( portid,v ) outportw( portid,v )
#define outp( portid,v ) outportb( portid,v )
#define inp( portid ) inportb( portid )
#define getch() getkey()
#define _enable()
#define _disable()
#else
#ifdef _INTELC32_
#ifdef MK_FP
#undef MK_FP
#endif
#define MK_FP(seg, ofs) ((void _far *)(((seg)<<4) + ofs))
#ifndef far
#define far _far
#endif
#else
#ifdef __BORLANDC__
#define COMPILER_VER ".ibmbc"
#define IFF_SWITCH_CAST (long)
#define QSORT_FUNCT_PARM const void _FAR *
#define QSORT_FUNCT_RET int _Cdecl
#endif
#ifdef __TURBOC__
#define CDECL _cdecl
#ifndef __BORLANDC__
#define COMPILER_VER ".ibmbtc"
#endif
#endif
#ifdef __WATCOMC__
#ifndef __386__
#define COMPILER_VER ".ibmwat"
#endif
#ifdef __386__
#define COMPILER_VER ".ibmwat386"
#endif
#endif
#ifndef __ZTC__
#ifndef __TURBOC__
#ifdef __WATCOMC__
#ifdef __386__
/* CCP - Corrected MK_FP, removed redefinition of FP_OFF and FP_SEG */
#ifdef MK_FP
#undef MK_FP
#endif
#define MK_FP(seg,ofs) ((void *)(((unsigned long)(seg) << 4) + (unsigned)(ofs)))
#endif
#else
void _cdecl main(int, char **); /* so MSC can use FASTCALL's... */
#define main (_cdecl main)
#ifndef MK_FP
#define MK_FP(seg,ofs) ((void far *)(((unsigned long)(seg) << 16) | (unsigned)(ofs)))
#endif
#ifdef FP_OFF
#undef FP_OFF
#endif
#define FP_OFF(ptr) (unsigned int)(ptr) /* MSC's version doesn't work!?!? */
#ifdef FP_SEG /* note: this produces a warning at >= /W3 */
#undef FP_SEG
#endif
#define FP_SEG(ptr) (unsigned int)((unsigned long)ptr >> 16)
#endif
#else
#define _cdecl cdecl /* Turbo-C equivalent function names/keywords */
#define _enable enable
#define _disable disable
#undef outpw( portid,v )
#undef outp( portid,v )
#undef inp( portid )
#define outpw( portid,v ) outport( portid,v )
#define outp( portid,v ) outportb( portid,v )
#define inp( portid ) inportb( portid )
#endif
#endif
#endif
#endif
#ifdef __WATCOMC__
#ifndef COMPILER_VER
#define COMPILER_VER ".ibmwat"
#endif
double sqrt(double x);
#pragma aux sqrt = 0xD9 0xFA parm [8087] value [8087];
double sin(double x);
#pragma aux sin = 0xD9 0xFE parm [8087] value [8087];
double cos(double x);
#pragma aux cos = 0xD9 0xFF parm [8087] value [8087];
double fabs(double x);
#pragma aux fabs = 0xD9 0xE1 parm [8087] value [8087];
#endif
#ifdef GCCDOS
double fmod(double, double);
#define COMPILER_VER ".ibmgcc"
#endif
#ifndef COMPILER_VER /* if we haven't figured this out yet... */
#define COMPILER_VER ".ibmmsc"
#endif
#define PRINT_CREDITS print_ibm_credits();
#define PRINT_STATS print_ibm_stats();
#define WAIT_FOR_KEYPRESS getch();
void print_ibm_credits (void);
void print_ibm_stats(void);
