| 1 |
#ifndef lint
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| 2 |
static const char RCSid[] = "$Id: pcomb.c,v 2.41 2007/11/05 23:40:26 greg Exp $";
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| 3 |
#endif
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| 4 |
/*
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| 5 |
* Combine picture files according to calcomp functions.
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| 6 |
*
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| 7 |
* 1/4/89
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| 8 |
*/
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| 9 |
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| 10 |
#include "platform.h"
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| 11 |
#include "standard.h"
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| 12 |
#include "rtprocess.h"
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| 13 |
#include "color.h"
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| 14 |
#include "calcomp.h"
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#include "view.h"
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| 16 |
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| 17 |
#define MAXINP 512 /* maximum number of input files */
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| 18 |
#define WINSIZ 64 /* scanline window size */
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| 19 |
#define MIDSCN ((WINSIZ-1)/2+1)
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| 20 |
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| 21 |
struct {
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| 22 |
char *name; /* file or command name */
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| 23 |
FILE *fp; /* stream pointer */
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| 24 |
VIEW vw; /* view for picture */
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| 25 |
RESOLU rs; /* image resolution and orientation */
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| 26 |
float pa; /* pixel aspect ratio */
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| 27 |
COLOR *scan[WINSIZ]; /* input scanline window */
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| 28 |
COLOR coef; /* coefficient */
|
| 29 |
COLOR expos; /* recorded exposure */
|
| 30 |
} input[MAXINP]; /* input pictures */
|
| 31 |
|
| 32 |
int nfiles; /* number of input files */
|
| 33 |
|
| 34 |
char ourfmt[LPICFMT+1] = PICFMT; /* input picture format */
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| 35 |
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| 36 |
char StandardInput[] = "<stdin>";
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| 37 |
char Command[] = "<Command>";
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| 38 |
char vcolin[3][4] = {"ri", "gi", "bi"};
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| 39 |
char vcolout[3][4] = {"ro", "go", "bo"};
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| 40 |
char vbrtin[] = "li";
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| 41 |
char vbrtout[] = "lo";
|
| 42 |
char vcolexp[3][4] = {"re", "ge", "be"};
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| 43 |
char vbrtexp[] = "le";
|
| 44 |
char vpixaspect[] = "pa";
|
| 45 |
|
| 46 |
char vray[7][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz", "T"};
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| 47 |
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| 48 |
char vpsize[] = "S";
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| 49 |
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| 50 |
char vnfiles[] = "nfiles";
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| 51 |
char vwhteff[] = "WE";
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| 52 |
char vxmax[] = "xmax";
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| 53 |
char vymax[] = "ymax";
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| 54 |
char vxres[] = "xres";
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| 55 |
char vyres[] = "yres";
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| 56 |
char vxpos[] = "x";
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| 57 |
char vypos[] = "y";
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| 58 |
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| 59 |
int nowarn = 0; /* no warning messages? */
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| 60 |
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| 61 |
int xmax = 0, ymax = 0; /* input resolution */
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| 62 |
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| 63 |
int xscan, yscan; /* input position */
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| 65 |
int xres, yres; /* output resolution */
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| 66 |
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| 67 |
int xpos, ypos; /* output position */
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| 68 |
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| 69 |
char *progname; /* global argv[0] */
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| 70 |
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| 71 |
int echoheader = 1;
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| 72 |
int wrongformat = 0;
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| 73 |
int gotview;
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| 74 |
|
| 75 |
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| 76 |
static gethfunc headline;
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| 77 |
static void checkfile(void);
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| 78 |
static double rgb_bright(COLOR clr);
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| 79 |
static double xyz_bright(COLOR clr);
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| 80 |
static void init(void);
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| 81 |
static void combine(void);
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| 82 |
static void advance(void);
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| 83 |
static double l_expos(char *nam);
|
| 84 |
static double l_pixaspect(char *nm);
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| 85 |
static double l_colin(char *nam);
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| 86 |
static double l_ray(char *nam);
|
| 87 |
static double l_psize(char *nm);
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| 88 |
|
| 89 |
|
| 90 |
int
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| 91 |
main(
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| 92 |
int argc,
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| 93 |
char *argv[]
|
| 94 |
)
|
| 95 |
{
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| 96 |
int original;
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| 97 |
double f;
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| 98 |
int a;
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| 99 |
SET_DEFAULT_BINARY();
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| 100 |
SET_FILE_BINARY(stdin);
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| 101 |
SET_FILE_BINARY(stdout);
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progname = argv[0];
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/* scan options */
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| 104 |
for (a = 1; a < argc; a++) {
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| 105 |
if (argv[a][0] == '-')
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switch (argv[a][1]) {
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| 107 |
case 'x':
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| 108 |
case 'y':
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a++;
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continue;
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case 'w':
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nowarn = !nowarn;
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continue;
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case 'h':
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echoheader = !echoheader;
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continue;
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| 117 |
case 'f':
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| 118 |
case 'e':
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a++;
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continue;
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}
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break;
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}
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newheader("RADIANCE", stdout); /* start header */
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fputnow(stdout);
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/* process files */
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for (nfiles = 0; nfiles < MAXINP; nfiles++) {
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0);
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0);
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input[nfiles].vw = stdview;
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input[nfiles].pa = 1.0;
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}
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nfiles = 0;
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original = 0;
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for ( ; a < argc; a++) {
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if (nfiles >= MAXINP) {
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eputs(argv[0]);
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eputs(": too many picture files\n");
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quit(1);
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}
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if (argv[a][0] == '-')
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switch (argv[a][1]) {
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case '\0':
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input[nfiles].name = StandardInput;
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input[nfiles].fp = stdin;
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break;
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case 'o':
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original++;
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continue;
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case 's':
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f = atof(argv[++a]);
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scalecolor(input[nfiles].coef, f);
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continue;
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case 'c':
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colval(input[nfiles].coef,RED)*=atof(argv[++a]);
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colval(input[nfiles].coef,GRN)*=atof(argv[++a]);
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colval(input[nfiles].coef,BLU)*=atof(argv[++a]);
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continue;
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default:
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goto usage;
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}
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else {
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if (argv[a][0] == '!') {
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input[nfiles].name = Command;
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input[nfiles].fp = popen(argv[a]+1, "r");
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} else {
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input[nfiles].name = argv[a];
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input[nfiles].fp = fopen(argv[a], "r");
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}
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if (input[nfiles].fp == NULL) {
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perror(argv[a]);
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quit(1);
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}
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}
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checkfile();
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if (original) {
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colval(input[nfiles].coef,RED) /=
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colval(input[nfiles].expos,RED);
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colval(input[nfiles].coef,GRN) /=
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colval(input[nfiles].expos,GRN);
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colval(input[nfiles].coef,BLU) /=
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colval(input[nfiles].expos,BLU);
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0);
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}
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nfiles++;
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original = 0;
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}
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init(); /* set constants */
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/* go back and get expressions */
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for (a = 1; a < argc; a++) {
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if (argv[a][0] == '-')
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switch (argv[a][1]) {
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case 'x':
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varset(vxres, ':', eval(argv[++a]));
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continue;
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case 'y':
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varset(vyres, ':', eval(argv[++a]));
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continue;
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| 199 |
case 'w':
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continue;
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case 'h':
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continue;
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case 'f':
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fcompile(argv[++a]);
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continue;
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case 'e':
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scompile(argv[++a], NULL, 0);
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continue;
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}
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break;
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}
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/* set/get output resolution */
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if (!vardefined(vxres))
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varset(vxres, ':', (double)xmax);
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if (!vardefined(vyres))
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varset(vyres, ':', (double)ymax);
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xres = varvalue(vxres) + .5;
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yres = varvalue(vyres) + .5;
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if (xres <= 0 || yres <= 0) {
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eputs(argv[0]);
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eputs(": illegal output resolution\n");
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quit(1);
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}
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/* complete header */
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printargs(argc, argv, stdout);
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if (strcmp(ourfmt, PICFMT))
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fputformat(ourfmt, stdout); /* print format if known */
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putchar('\n');
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fprtresolu(xres, yres, stdout);
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/* combine pictures */
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combine();
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quit(0);
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usage:
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eputs("Usage: ");
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eputs(argv[0]);
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eputs(
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" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] pic ..]\n");
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| 238 |
quit(1);
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return 1; /* pro forma return */
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}
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static int
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headline( /* check header line & echo if requested */
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char *s,
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| 246 |
void *p
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| 247 |
)
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| 248 |
{
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| 249 |
char fmt[32];
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double d;
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COLOR ctmp;
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| 253 |
if (isheadid(s)) /* header id */
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return(0); /* don't echo */
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| 255 |
if (formatval(fmt, s)) { /* check format */
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if (globmatch(ourfmt, fmt)) {
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wrongformat = 0;
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strcpy(ourfmt, fmt);
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} else
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wrongformat = globmatch(PICFMT, fmt) ? 1 : -1;
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return(0); /* don't echo */
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}
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if (isexpos(s)) { /* exposure */
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d = exposval(s);
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scalecolor(input[nfiles].expos, d);
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} else if (iscolcor(s)) { /* color correction */
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colcorval(ctmp, s);
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multcolor(input[nfiles].expos, ctmp);
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} else if (isaspect(s))
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input[nfiles].pa *= aspectval(s);
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else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0)
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gotview++;
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| 273 |
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| 274 |
if (echoheader) { /* echo line */
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| 275 |
putchar('\t');
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| 276 |
return(fputs(s, stdout));
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| 277 |
}
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| 278 |
return(0);
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| 279 |
}
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| 280 |
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| 281 |
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| 282 |
static void
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| 283 |
checkfile(void) /* ready a file */
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| 284 |
{
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| 285 |
register int i;
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| 286 |
/* process header */
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| 287 |
gotview = 0;
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| 288 |
if (echoheader) {
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| 289 |
fputs(input[nfiles].name, stdout);
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| 290 |
fputs(":\n", stdout);
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| 291 |
}
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| 292 |
getheader(input[nfiles].fp, headline, NULL);
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| 293 |
if (wrongformat < 0) {
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| 294 |
eputs(input[nfiles].name);
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| 295 |
eputs(": not a Radiance picture\n");
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| 296 |
quit(1);
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| 297 |
}
|
| 298 |
if (wrongformat > 0) {
|
| 299 |
wputs(input[nfiles].name);
|
| 300 |
wputs(": warning -- incompatible picture format\n");
|
| 301 |
}
|
| 302 |
if (!gotview || setview(&input[nfiles].vw) != NULL)
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| 303 |
input[nfiles].vw.type = 0;
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| 304 |
if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) {
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| 305 |
eputs(input[nfiles].name);
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| 306 |
eputs(": bad picture size\n");
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| 307 |
quit(1);
|
| 308 |
}
|
| 309 |
if (xmax == 0 && ymax == 0) {
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| 310 |
xmax = scanlen(&input[nfiles].rs);
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| 311 |
ymax = numscans(&input[nfiles].rs);
|
| 312 |
} else if (scanlen(&input[nfiles].rs) != xmax ||
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| 313 |
numscans(&input[nfiles].rs) != ymax) {
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| 314 |
eputs(input[nfiles].name);
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| 315 |
eputs(": resolution mismatch\n");
|
| 316 |
quit(1);
|
| 317 |
}
|
| 318 |
/* allocate scanlines */
|
| 319 |
for (i = 0; i < WINSIZ; i++)
|
| 320 |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR));
|
| 321 |
}
|
| 322 |
|
| 323 |
|
| 324 |
static double
|
| 325 |
rgb_bright(
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| 326 |
COLOR clr
|
| 327 |
)
|
| 328 |
{
|
| 329 |
return(bright(clr));
|
| 330 |
}
|
| 331 |
|
| 332 |
|
| 333 |
static double
|
| 334 |
xyz_bright(
|
| 335 |
COLOR clr
|
| 336 |
)
|
| 337 |
{
|
| 338 |
return(clr[CIEY]);
|
| 339 |
}
|
| 340 |
|
| 341 |
|
| 342 |
double (*ourbright)() = rgb_bright;
|
| 343 |
|
| 344 |
|
| 345 |
static void
|
| 346 |
init(void) /* perform final setup */
|
| 347 |
{
|
| 348 |
register int i;
|
| 349 |
/* define constants */
|
| 350 |
varset("PI", ':', PI);
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| 351 |
varset(vnfiles, ':', (double)nfiles);
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| 352 |
varset(vxmax, ':', (double)xmax);
|
| 353 |
varset(vymax, ':', (double)ymax);
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| 354 |
/* set functions */
|
| 355 |
for (i = 0; i < 3; i++) {
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| 356 |
funset(vcolexp[i], 1, ':', l_expos);
|
| 357 |
funset(vcolin[i], 1, '=', l_colin);
|
| 358 |
}
|
| 359 |
funset(vbrtexp, 1, ':', l_expos);
|
| 360 |
funset(vbrtin, 1, '=', l_colin);
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| 361 |
funset(vpixaspect, 1, ':', l_pixaspect);
|
| 362 |
for (i = 0; i < 7; i++)
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| 363 |
funset(vray[i], 1, '=', l_ray);
|
| 364 |
funset(vpsize, 1, '=', l_psize);
|
| 365 |
/* set brightness function */
|
| 366 |
if (!strcmp(ourfmt, CIEFMT)) {
|
| 367 |
varset(vwhteff, ':', 1.0);
|
| 368 |
ourbright = xyz_bright;
|
| 369 |
} else
|
| 370 |
varset(vwhteff, ':', WHTEFFICACY);
|
| 371 |
}
|
| 372 |
|
| 373 |
|
| 374 |
static void
|
| 375 |
combine(void) /* combine pictures */
|
| 376 |
{
|
| 377 |
EPNODE *coldef[3], *brtdef;
|
| 378 |
COLOR *scanout;
|
| 379 |
double d;
|
| 380 |
register int i, j;
|
| 381 |
/* check defined variables */
|
| 382 |
for (j = 0; j < 3; j++) {
|
| 383 |
if (vardefined(vcolout[j]))
|
| 384 |
coldef[j] = eparse(vcolout[j]);
|
| 385 |
else
|
| 386 |
coldef[j] = NULL;
|
| 387 |
}
|
| 388 |
if (vardefined(vbrtout))
|
| 389 |
brtdef = eparse(vbrtout);
|
| 390 |
else
|
| 391 |
brtdef = NULL;
|
| 392 |
/* allocate scanline */
|
| 393 |
scanout = (COLOR *)emalloc(xres*sizeof(COLOR));
|
| 394 |
/* set input position */
|
| 395 |
yscan = ymax+MIDSCN;
|
| 396 |
/* combine files */
|
| 397 |
for (ypos = yres-1; ypos >= 0; ypos--) {
|
| 398 |
advance();
|
| 399 |
varset(vypos, '=', (double)ypos);
|
| 400 |
for (xpos = 0; xpos < xres; xpos++) {
|
| 401 |
xscan = (xpos+.5)*xmax/xres;
|
| 402 |
varset(vxpos, '=', (double)xpos);
|
| 403 |
eclock++;
|
| 404 |
if (brtdef != NULL) {
|
| 405 |
d = evalue(brtdef);
|
| 406 |
if (d < 0.0)
|
| 407 |
d = 0.0;
|
| 408 |
setcolor(scanout[xpos], d, d, d);
|
| 409 |
} else {
|
| 410 |
for (j = 0; j < 3; j++) {
|
| 411 |
if (coldef[j] != NULL) {
|
| 412 |
d = evalue(coldef[j]);
|
| 413 |
} else {
|
| 414 |
d = 0.0;
|
| 415 |
for (i = 0; i < nfiles; i++)
|
| 416 |
d += colval(input[i].scan[MIDSCN][xscan],j);
|
| 417 |
}
|
| 418 |
if (d < 0.0)
|
| 419 |
d = 0.0;
|
| 420 |
colval(scanout[xpos],j) = d;
|
| 421 |
}
|
| 422 |
}
|
| 423 |
}
|
| 424 |
if (fwritescan(scanout, xres, stdout) < 0) {
|
| 425 |
perror("write error");
|
| 426 |
quit(1);
|
| 427 |
}
|
| 428 |
}
|
| 429 |
efree((char *)scanout);
|
| 430 |
}
|
| 431 |
|
| 432 |
|
| 433 |
static void
|
| 434 |
advance(void) /* read in data for next scanline */
|
| 435 |
{
|
| 436 |
int ytarget;
|
| 437 |
register COLOR *st;
|
| 438 |
register int i, j;
|
| 439 |
|
| 440 |
for (ytarget = (ypos+.5)*ymax/yres; yscan > ytarget; yscan--)
|
| 441 |
for (i = 0; i < nfiles; i++) {
|
| 442 |
st = input[i].scan[WINSIZ-1];
|
| 443 |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */
|
| 444 |
input[i].scan[j] = input[i].scan[j-1];
|
| 445 |
input[i].scan[0] = st;
|
| 446 |
if (yscan <= MIDSCN) /* hit bottom? */
|
| 447 |
continue;
|
| 448 |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */
|
| 449 |
eputs(input[i].name);
|
| 450 |
eputs(": read error\n");
|
| 451 |
quit(1);
|
| 452 |
}
|
| 453 |
for (j = 0; j < xmax; j++) /* adjust color */
|
| 454 |
multcolor(st[j], input[i].coef);
|
| 455 |
}
|
| 456 |
}
|
| 457 |
|
| 458 |
|
| 459 |
static double
|
| 460 |
l_expos( /* return picture exposure */
|
| 461 |
char *nam
|
| 462 |
)
|
| 463 |
{
|
| 464 |
int fn, n;
|
| 465 |
double d;
|
| 466 |
|
| 467 |
d = argument(1);
|
| 468 |
if (d <= -0.5 || d >= nfiles+0.5) {
|
| 469 |
errno = EDOM;
|
| 470 |
return(0.0);
|
| 471 |
}
|
| 472 |
if (d < 0.5)
|
| 473 |
return((double)nfiles);
|
| 474 |
fn = d - 0.5;
|
| 475 |
if (nam == vbrtexp)
|
| 476 |
return((*ourbright)(input[fn].expos));
|
| 477 |
n = 3;
|
| 478 |
while (n--)
|
| 479 |
if (nam == vcolexp[n])
|
| 480 |
return(colval(input[fn].expos,n));
|
| 481 |
eputs("Bad call to l_expos()!\n");
|
| 482 |
quit(1);
|
| 483 |
return 1; /* pro forma return */
|
| 484 |
}
|
| 485 |
|
| 486 |
|
| 487 |
static double
|
| 488 |
l_pixaspect(char *nm) /* return pixel aspect ratio */
|
| 489 |
{
|
| 490 |
int fn;
|
| 491 |
double d;
|
| 492 |
|
| 493 |
d = argument(1);
|
| 494 |
if (d <= -0.5 || d >= nfiles+0.5) {
|
| 495 |
errno = EDOM;
|
| 496 |
return(0.0);
|
| 497 |
}
|
| 498 |
if (d < 0.5)
|
| 499 |
return((double)nfiles);
|
| 500 |
fn = d - 0.5;
|
| 501 |
return(input[fn].pa);
|
| 502 |
}
|
| 503 |
|
| 504 |
|
| 505 |
static double
|
| 506 |
l_colin( /* return color value for picture */
|
| 507 |
register char *nam
|
| 508 |
)
|
| 509 |
{
|
| 510 |
int fn;
|
| 511 |
register int n, xoff, yoff;
|
| 512 |
double d;
|
| 513 |
|
| 514 |
d = argument(1);
|
| 515 |
if (d <= -0.5 || d >= nfiles+0.5) {
|
| 516 |
errno = EDOM;
|
| 517 |
return(0.0);
|
| 518 |
}
|
| 519 |
if (d < 0.5)
|
| 520 |
return((double)nfiles);
|
| 521 |
fn = d - 0.5;
|
| 522 |
xoff = yoff = 0;
|
| 523 |
n = nargum();
|
| 524 |
if (n >= 2) {
|
| 525 |
d = argument(2);
|
| 526 |
if (d < 0.0) {
|
| 527 |
xoff = d-.5;
|
| 528 |
if (xscan+xoff < 0)
|
| 529 |
xoff = -xscan;
|
| 530 |
} else {
|
| 531 |
xoff = d+.5;
|
| 532 |
if (xscan+xoff >= xmax)
|
| 533 |
xoff = xmax-1-xscan;
|
| 534 |
}
|
| 535 |
}
|
| 536 |
if (n >= 3) {
|
| 537 |
d = argument(3);
|
| 538 |
if (d < 0.0) {
|
| 539 |
yoff = d-.5;
|
| 540 |
if (yoff+MIDSCN < 0)
|
| 541 |
yoff = -MIDSCN;
|
| 542 |
if (yscan+yoff < 0)
|
| 543 |
yoff = -yscan;
|
| 544 |
} else {
|
| 545 |
yoff = d+.5;
|
| 546 |
if (yoff+MIDSCN >= WINSIZ)
|
| 547 |
yoff = WINSIZ-1-MIDSCN;
|
| 548 |
if (yscan+yoff >= ymax)
|
| 549 |
yoff = ymax-1-yscan;
|
| 550 |
}
|
| 551 |
}
|
| 552 |
if (nam == vbrtin)
|
| 553 |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff]));
|
| 554 |
n = 3;
|
| 555 |
while (n--)
|
| 556 |
if (nam == vcolin[n])
|
| 557 |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n));
|
| 558 |
eputs("Bad call to l_colin()!\n");
|
| 559 |
quit(1);
|
| 560 |
return 1; /* pro forma return */
|
| 561 |
}
|
| 562 |
|
| 563 |
|
| 564 |
static double
|
| 565 |
l_ray( /* return ray origin or direction */
|
| 566 |
register char *nam
|
| 567 |
)
|
| 568 |
{
|
| 569 |
static unsigned long ltick[MAXINP];
|
| 570 |
static FVECT lorg[MAXINP], ldir[MAXINP];
|
| 571 |
static double ldist[MAXINP];
|
| 572 |
RREAL loc[2];
|
| 573 |
double d;
|
| 574 |
int fn;
|
| 575 |
register int i;
|
| 576 |
|
| 577 |
d = argument(1);
|
| 578 |
if (d <= -0.5 || d >= nfiles+0.5) {
|
| 579 |
errno = EDOM;
|
| 580 |
return(0.0);
|
| 581 |
}
|
| 582 |
if (d < 0.5)
|
| 583 |
return((double)nfiles);
|
| 584 |
fn = d - 0.5;
|
| 585 |
if (ltick[fn] != eclock) { /* need to compute? */
|
| 586 |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0;
|
| 587 |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0;
|
| 588 |
ldist[fn] = -1.0;
|
| 589 |
if (input[fn].vw.type == 0)
|
| 590 |
errno = EDOM;
|
| 591 |
else {
|
| 592 |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan);
|
| 593 |
ldist[fn] = viewray(lorg[fn], ldir[fn],
|
| 594 |
&input[fn].vw, loc[0], loc[1]);
|
| 595 |
}
|
| 596 |
ltick[fn] = eclock;
|
| 597 |
}
|
| 598 |
if (nam == vray[i=6])
|
| 599 |
return(ldist[fn]);
|
| 600 |
while (i--)
|
| 601 |
if (nam == vray[i])
|
| 602 |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]);
|
| 603 |
eputs("Bad call to l_ray()!\n");
|
| 604 |
quit(1);
|
| 605 |
return 1; /* pro forma return */
|
| 606 |
}
|
| 607 |
|
| 608 |
|
| 609 |
static double
|
| 610 |
l_psize(char *nm) /* compute pixel size in steradians */
|
| 611 |
{
|
| 612 |
static unsigned long ltick[MAXINP];
|
| 613 |
static double psize[MAXINP];
|
| 614 |
FVECT dir0, org, dirx, diry;
|
| 615 |
RREAL locx[2], locy[2];
|
| 616 |
double d;
|
| 617 |
int fn;
|
| 618 |
register int i;
|
| 619 |
|
| 620 |
d = argument(1);
|
| 621 |
if (d <= -0.5 || d >= nfiles+0.5) {
|
| 622 |
errno = EDOM;
|
| 623 |
return(0.0);
|
| 624 |
}
|
| 625 |
if (d < 0.5)
|
| 626 |
return((double)nfiles);
|
| 627 |
fn = d - 0.5;
|
| 628 |
if (ltick[fn] != eclock) { /* need to compute? */
|
| 629 |
psize[fn] = 0.0;
|
| 630 |
if (input[fn].vw.type == 0)
|
| 631 |
errno = EDOM;
|
| 632 |
else if (input[fn].vw.type != VT_PAR &&
|
| 633 |
funvalue(vray[6], 1, &d) >= -FTINY) {
|
| 634 |
for (i = 0; i < 3; i++)
|
| 635 |
dir0[i] = funvalue(vray[3+i], 1, &d);
|
| 636 |
pix2loc(locx, &input[fn].rs, xscan+1, ymax-1-yscan);
|
| 637 |
pix2loc(locy, &input[fn].rs, xscan, ymax-yscan);
|
| 638 |
if (viewray(org, dirx, &input[fn].vw,
|
| 639 |
locx[0], locx[1]) >= -FTINY &&
|
| 640 |
viewray(org, diry, &input[fn].vw,
|
| 641 |
locy[0], locy[1]) >= -FTINY) {
|
| 642 |
/* approximate solid angle */
|
| 643 |
for (i = 0; i < 3; i++) {
|
| 644 |
dirx[i] -= dir0[i];
|
| 645 |
diry[i] -= dir0[i];
|
| 646 |
}
|
| 647 |
fcross(dir0, dirx, diry);
|
| 648 |
psize[fn] = VLEN(dir0);
|
| 649 |
}
|
| 650 |
}
|
| 651 |
ltick[fn] = eclock;
|
| 652 |
}
|
| 653 |
return(psize[fn]);
|
| 654 |
}
|
| 655 |
|
| 656 |
|
| 657 |
extern void
|
| 658 |
wputs(char *msg)
|
| 659 |
{
|
| 660 |
if (!nowarn)
|
| 661 |
eputs(msg);
|
| 662 |
}
|
| 663 |
|
| 664 |
|
| 665 |
extern void
|
| 666 |
eputs(char *msg)
|
| 667 |
{
|
| 668 |
fputs(msg, stderr);
|
| 669 |
}
|
| 670 |
|
| 671 |
|
| 672 |
extern void
|
| 673 |
quit(int code) /* exit gracefully */
|
| 674 |
{
|
| 675 |
register int i;
|
| 676 |
/* close input files */
|
| 677 |
for (i = 0; i < nfiles; i++)
|
| 678 |
if (input[i].name == Command)
|
| 679 |
pclose(input[i].fp);
|
| 680 |
else
|
| 681 |
fclose(input[i].fp);
|
| 682 |
exit(code);
|
| 683 |
}
|
