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< |
/* Copyright (c) 1990 Regents of the University of California */ |
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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#include "color.h" |
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#include "view.h" |
30 |
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#include "pic.h" |
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#include "x11raster.h" |
31 |
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#include "random.h" |
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+ |
#include "resolu.h" |
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|
34 |
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#define FONTNAME "8x13" /* text font we'll use */ |
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|
36 |
< |
#define CTRL(c) ('c'-'@') |
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> |
#define CTRL(c) ((c)-'@') |
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|
38 |
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#define BORWIDTH 5 /* border width */ |
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|
40 |
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#define ICONSIZ (8*10) /* maximum icon dimension (even 8) */ |
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|
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#define ourscreen DefaultScreen(thedisplay) |
43 |
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#define ourblack BlackPixel(thedisplay,ourscreen) |
44 |
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#define ourwhite WhitePixel(thedisplay,ourscreen) |
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#define ourroot RootWindow(thedisplay,ourscreen) |
46 |
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#define ourgc DefaultGC(thedisplay,ourscreen) |
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|
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#define revline(x0,y0,x1,y1) XDrawLine(thedisplay,wind,revgc,x0,y0,x1,y1) |
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|
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int dither = 1; /* dither colors? */ |
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int fast = 0; /* keep picture in Pixmap? */ |
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|
54 |
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char *dispname = NULL; /* our display name */ |
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|
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Window wind = 0; /* our output window */ |
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unsigned long ourblack=0, ourwhite=1; /* black and white for this visual */ |
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Font fontid; /* our font */ |
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|
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int maxcolors = 0; /* maximum colors */ |
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|
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COLR *scanline; /* scan line buffer */ |
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|
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int xmax, ymax; /* picture resolution */ |
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RESOLU inpres; /* input resolution and ordering */ |
74 |
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int xmax, ymax; /* picture dimensions */ |
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int width, height; /* window size */ |
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char *fname = NULL; /* input file name */ |
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FILE *fin = stdin; /* input file */ |
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|
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int wrongformat = 0; /* input in another format? */ |
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|
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GC ourgc; /* standard graphics context */ |
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GC revgc; /* graphics context with GXinvert */ |
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|
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< |
XRASTER *ourras; /* our stored image */ |
88 |
> |
int *ourrank; /* our visual class ranking */ |
89 |
> |
XVisualInfo ourvis; /* our visual */ |
90 |
> |
XRASTER *ourras; /* our stored image */ |
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unsigned char *ourdata; /* our image data */ |
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|
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struct { |
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|
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char errmsg[128]; |
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|
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extern BYTE clrtab[256][3]; /* global color map */ |
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|
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extern long ftell(); |
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|
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extern char *malloc(), *calloc(); |
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|
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extern double atof(), pow(), log(); |
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|
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Display *thedisplay; |
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|
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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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extern char *getenv(); |
120 |
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char *gv; |
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int headline(); |
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int i; |
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|
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progname = argv[0]; |
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if ((gv = getenv("GAMMA")) != NULL) |
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+ |
gamcor = atof(gv); |
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|
128 |
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for (i = 1; i < argc; i++) |
129 |
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if (argv[i][0] == '-') |
138 |
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maxcolors = 2; |
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break; |
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case 'd': |
141 |
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dither = !dither; |
141 |
> |
if (argv[i][2] == 'i') |
142 |
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dispname = argv[++i]; |
143 |
> |
else |
144 |
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dither = !dither; |
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break; |
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case 'f': |
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fast = !fast; |
152 |
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scale = atoi(argv[++i]); |
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break; |
154 |
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case 'g': |
155 |
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if (!strcmp(argv[i], "-geometry")) |
155 |
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if (argv[i][2] == 'e') |
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geometry = argv[++i]; |
157 |
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else |
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gamcor = atof(argv[++i]); |
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fname = argv[i]; |
170 |
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fin = fopen(fname, "r"); |
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if (fin == NULL) { |
172 |
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sprintf(errmsg, "can't open file \"%s\"", fname); |
172 |
> |
sprintf(errmsg, "cannot open file \"%s\"", fname); |
173 |
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quiterr(errmsg); |
174 |
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} |
175 |
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} else if (i != argc) |
177 |
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/* get header */ |
178 |
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getheader(fin, headline, NULL); |
179 |
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/* get picture dimensions */ |
180 |
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if (wrongformat || fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
180 |
> |
if (wrongformat || !fgetsresolu(&inpres, fin)) |
181 |
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quiterr("bad picture format"); |
182 |
+ |
xmax = scanlen(&inpres); |
183 |
+ |
ymax = numscans(&inpres); |
184 |
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/* set view parameters */ |
185 |
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if (gotview && setview(&ourview) != NULL) |
186 |
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gotview = 0; |
193 |
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getevent(); /* main loop */ |
194 |
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userr: |
195 |
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fprintf(stderr, |
196 |
< |
"Usage: %s [-geometry spec][-b][-m][-d][-f][-c ncolors][-e +/-stops] file\n", |
196 |
> |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e +/-stops] pic\n", |
197 |
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progname); |
198 |
< |
quit(1); |
198 |
> |
exit(1); |
199 |
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} |
200 |
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|
201 |
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|
202 |
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headline(s) /* get relevant info from header */ |
203 |
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char *s; |
204 |
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{ |
191 |
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static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
192 |
– |
register char **an; |
205 |
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char fmt[32]; |
206 |
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|
207 |
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if (isexpos(s)) |
209 |
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else if (isformat(s)) { |
210 |
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formatval(fmt, s); |
211 |
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wrongformat = strcmp(fmt, COLRFMT); |
212 |
< |
} else |
213 |
< |
for (an = altname; *an != NULL; an++) |
202 |
< |
if (!strncmp(*an, s, strlen(*an))) { |
203 |
< |
if (sscanview(&ourview, s+strlen(*an)) > 0) |
204 |
< |
gotview++; |
205 |
< |
return; |
206 |
< |
} |
212 |
> |
} else if (isview(s) && sscanview(&ourview, s) > 0) |
213 |
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gotview++; |
214 |
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} |
215 |
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|
216 |
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|
218 |
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{ |
219 |
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XWMHints ourxwmhints; |
220 |
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XSetWindowAttributes ourwinattr; |
221 |
< |
XSizeHints oursizhints; |
222 |
< |
register int i; |
221 |
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XSizeHints oursizhints; |
222 |
> |
register int i; |
223 |
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|
224 |
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if (fname != NULL) { |
225 |
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scanpos = (long *)malloc(ymax*sizeof(long)); |
228 |
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for (i = 0; i < ymax; i++) |
229 |
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scanpos[i] = -1; |
230 |
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} |
231 |
< |
if ((thedisplay = XOpenDisplay(NULL)) == NULL) |
232 |
< |
quiterr("can't open display; DISPLAY variable set?"); |
233 |
< |
if (maxcolors == 0) { /* get number of available colors */ |
234 |
< |
i = DisplayPlanes(thedisplay,ourscreen); |
228 |
< |
maxcolors = i > 8 ? 256 : 1<<i; |
229 |
< |
if (maxcolors > 4) maxcolors -= 2; |
230 |
< |
} |
231 |
> |
if ((thedisplay = XOpenDisplay(dispname)) == NULL) |
232 |
> |
quiterr("cannot open display"); |
233 |
> |
/* get best visual for default screen */ |
234 |
> |
getbestvis(); |
235 |
|
/* store image */ |
236 |
|
getras(); |
237 |
< |
/* open window */ |
238 |
< |
ourwinattr.border_pixel = ourblack; |
239 |
< |
ourwinattr.background_pixel = ourwhite; |
236 |
< |
wind = XCreateWindow(thedisplay, ourroot, 0, 0, xmax, ymax, BORWIDTH, |
237 |
< |
0, InputOutput, ourras->visual, |
238 |
< |
CWBackPixel|CWBorderPixel, &ourwinattr); |
239 |
< |
if (wind == 0) |
240 |
< |
quiterr("can't create window"); |
241 |
< |
width = xmax; |
242 |
< |
height = ymax; |
243 |
< |
fontid = XLoadFont(thedisplay, FONTNAME); |
244 |
< |
if (fontid == 0) |
245 |
< |
quiterr("can't get font"); |
246 |
< |
XSetFont(thedisplay, ourgc, fontid); |
247 |
< |
revgc = XCreateGC(thedisplay, wind, 0, 0); |
248 |
< |
XSetFunction(thedisplay, revgc, GXinvert); |
249 |
< |
XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, |
250 |
< |
XC_diamond_cross)); |
251 |
< |
XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
237 |
> |
/* get size and position */ |
238 |
> |
bzero((char *)&oursizhints, sizeof(oursizhints)); |
239 |
> |
oursizhints.width = xmax; oursizhints.height = ymax; |
240 |
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if (geometry != NULL) { |
253 |
– |
bzero((char *)&oursizhints, sizeof(oursizhints)); |
241 |
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i = XParseGeometry(geometry, &oursizhints.x, &oursizhints.y, |
242 |
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(unsigned *)&oursizhints.width, |
243 |
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(unsigned *)&oursizhints.height); |
244 |
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if ((i&(WidthValue|HeightValue)) == (WidthValue|HeightValue)) |
245 |
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oursizhints.flags |= USSize; |
246 |
< |
else { |
260 |
< |
oursizhints.width = xmax; |
261 |
< |
oursizhints.height = ymax; |
246 |
> |
else |
247 |
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oursizhints.flags |= PSize; |
263 |
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} |
248 |
|
if ((i&(XValue|YValue)) == (XValue|YValue)) { |
249 |
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oursizhints.flags |= USPosition; |
250 |
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if (i & XNegative) |
254 |
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oursizhints.y += DisplayHeight(thedisplay, |
255 |
|
ourscreen)-1-oursizhints.height-2*BORWIDTH; |
256 |
|
} |
273 |
– |
XSetNormalHints(thedisplay, wind, &oursizhints); |
257 |
|
} |
258 |
+ |
/* open window */ |
259 |
+ |
ourwinattr.border_pixel = ourwhite; |
260 |
+ |
ourwinattr.background_pixel = ourblack; |
261 |
+ |
ourwinattr.colormap = XCreateColormap(thedisplay, ourroot, |
262 |
+ |
ourvis.visual, AllocNone); |
263 |
+ |
wind = XCreateWindow(thedisplay, ourroot, oursizhints.x, oursizhints.y, |
264 |
+ |
oursizhints.width, oursizhints.height, BORWIDTH, |
265 |
+ |
ourvis.depth, InputOutput, ourvis.visual, |
266 |
+ |
CWBackPixel|CWBorderPixel|CWColormap, &ourwinattr); |
267 |
+ |
if (wind == 0) |
268 |
+ |
quiterr("cannot create window"); |
269 |
+ |
XFreeColormap(thedisplay, ourwinattr.colormap); |
270 |
+ |
width = xmax; |
271 |
+ |
height = ymax; |
272 |
+ |
ourgc = XCreateGC(thedisplay, wind, 0, 0); |
273 |
+ |
XSetState(thedisplay, ourgc, ourblack, ourwhite, GXcopy, AllPlanes); |
274 |
+ |
revgc = XCreateGC(thedisplay, wind, 0, 0); |
275 |
+ |
XSetFunction(thedisplay, revgc, GXinvert); |
276 |
+ |
fontid = XLoadFont(thedisplay, FONTNAME); |
277 |
+ |
if (fontid == 0) |
278 |
+ |
quiterr("cannot get font"); |
279 |
+ |
XSetFont(thedisplay, ourgc, fontid); |
280 |
+ |
XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, |
281 |
+ |
XC_diamond_cross)); |
282 |
+ |
XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
283 |
+ |
if (oursizhints.flags) |
284 |
+ |
XSetNormalHints(thedisplay, wind, &oursizhints); |
285 |
|
ourxwmhints.flags = InputHint|IconPixmapHint; |
286 |
|
ourxwmhints.input = True; |
287 |
|
ourxwmhints.icon_pixmap = XCreateBitmapFromData(thedisplay, |
308 |
|
} |
309 |
|
|
310 |
|
|
311 |
< |
eputs(s) |
312 |
< |
char *s; |
311 |
> |
static int |
312 |
> |
viscmp(v1,v2) /* compare visual to see which is better, descending */ |
313 |
> |
register XVisualInfo *v1, *v2; |
314 |
|
{ |
315 |
< |
fputs(s, stderr); |
315 |
> |
int bad1 = 0, bad2 = 0; |
316 |
> |
register int *rp; |
317 |
> |
|
318 |
> |
if (v1->class == v2->class) { |
319 |
> |
if (v1->class == TrueColor || v1->class == DirectColor) { |
320 |
> |
/* prefer 24-bit to 32-bit */ |
321 |
> |
if (v1->depth == 24 && v2->depth == 32) |
322 |
> |
return(-1); |
323 |
> |
if (v1->depth == 32 && v2->depth == 24) |
324 |
> |
return(1); |
325 |
> |
return(0); |
326 |
> |
} |
327 |
> |
/* don't be too greedy */ |
328 |
> |
if (maxcolors <= 1<<v1->depth && maxcolors <= 1<<v2->depth) |
329 |
> |
return(v1->depth - v2->depth); |
330 |
> |
return(v2->depth - v1->depth); |
331 |
> |
} |
332 |
> |
/* prefer Pseudo when < 24-bit */ |
333 |
> |
if ((v1->class == TrueColor || v1->class == DirectColor) && |
334 |
> |
v1->depth < 24) |
335 |
> |
bad1 = 1; |
336 |
> |
if ((v2->class == TrueColor || v2->class == DirectColor) && |
337 |
> |
v2->depth < 24) |
338 |
> |
bad2 = -1; |
339 |
> |
if (bad1 | bad2) |
340 |
> |
return(bad1+bad2); |
341 |
> |
/* otherwise, use class ranking */ |
342 |
> |
for (rp = ourrank; *rp != -1; rp++) { |
343 |
> |
if (v1->class == *rp) |
344 |
> |
return(-1); |
345 |
> |
if (v2->class == *rp) |
346 |
> |
return(1); |
347 |
> |
} |
348 |
> |
return(0); |
349 |
|
} |
350 |
|
|
351 |
|
|
352 |
< |
quit(code) |
309 |
< |
int code; |
352 |
> |
getbestvis() /* get the best visual for this screen */ |
353 |
|
{ |
354 |
< |
exit(code); |
354 |
> |
#ifdef DEBUG |
355 |
> |
static char vistype[][12] = { |
356 |
> |
"StaticGray", |
357 |
> |
"GrayScale", |
358 |
> |
"StaticColor", |
359 |
> |
"PseudoColor", |
360 |
> |
"TrueColor", |
361 |
> |
"DirectColor" |
362 |
> |
}; |
363 |
> |
#endif |
364 |
> |
static int rankings[3][6] = { |
365 |
> |
{TrueColor,DirectColor,PseudoColor,GrayScale,StaticGray,-1}, |
366 |
> |
{PseudoColor,GrayScale,StaticGray,-1}, |
367 |
> |
{PseudoColor,GrayScale,StaticGray,-1} |
368 |
> |
}; |
369 |
> |
XVisualInfo *xvi; |
370 |
> |
int vismatched; |
371 |
> |
register int i, j; |
372 |
> |
|
373 |
> |
if (greyscale) { |
374 |
> |
ourrank = rankings[2]; |
375 |
> |
if (maxcolors < 2) maxcolors = 256; |
376 |
> |
} else if (maxcolors >= 2 && maxcolors <= 256) |
377 |
> |
ourrank = rankings[1]; |
378 |
> |
else { |
379 |
> |
ourrank = rankings[0]; |
380 |
> |
maxcolors = 256; |
381 |
> |
} |
382 |
> |
/* find best visual */ |
383 |
> |
ourvis.screen = ourscreen; |
384 |
> |
xvi = XGetVisualInfo(thedisplay,VisualScreenMask,&ourvis,&vismatched); |
385 |
> |
if (xvi == NULL) |
386 |
> |
quiterr("no visuals for this screen!"); |
387 |
> |
#ifdef DEBUG |
388 |
> |
fprintf(stderr, "Supported visuals:\n"); |
389 |
> |
for (i = 0; i < vismatched; i++) |
390 |
> |
fprintf(stderr, "\ttype %s, depth %d\n", |
391 |
> |
vistype[xvi[i].class], xvi[i].depth); |
392 |
> |
#endif |
393 |
> |
for (i = 0, j = 1; j < vismatched; j++) |
394 |
> |
if (viscmp(&xvi[i],&xvi[j]) > 0) |
395 |
> |
i = j; |
396 |
> |
/* compare to least acceptable */ |
397 |
> |
for (j = 0; ourrank[j++] != -1; ) |
398 |
> |
; |
399 |
> |
ourvis.class = ourrank[--j]; |
400 |
> |
ourvis.depth = 1; |
401 |
> |
if (viscmp(&xvi[i],&ourvis) > 0) |
402 |
> |
quiterr("inadequate visuals on this screen"); |
403 |
> |
/* OK, we'll use it */ |
404 |
> |
copystruct(&ourvis, &xvi[i]); |
405 |
> |
#ifdef DEBUG |
406 |
> |
fprintf(stderr, "Selected visual type %s, depth %d\n", |
407 |
> |
vistype[ourvis.class], ourvis.depth); |
408 |
> |
#endif |
409 |
> |
/* make appropriate adjustments */ |
410 |
> |
if (ourvis.class == GrayScale || ourvis.class == StaticGray) |
411 |
> |
greyscale = 1; |
412 |
> |
if (ourvis.depth <= 8 && ourvis.colormap_size < maxcolors) |
413 |
> |
maxcolors = ourvis.colormap_size; |
414 |
> |
if (ourvis.class == StaticGray) { |
415 |
> |
ourblack = 0; |
416 |
> |
ourwhite = 255; |
417 |
> |
} else if (ourvis.class == PseudoColor) { |
418 |
> |
ourblack = BlackPixel(thedisplay,ourscreen); |
419 |
> |
ourwhite = WhitePixel(thedisplay,ourscreen); |
420 |
> |
if ((ourblack|ourwhite) & ~255L) { |
421 |
> |
ourblack = 0; |
422 |
> |
ourwhite = 1; |
423 |
> |
} |
424 |
> |
if (maxcolors > 4) |
425 |
> |
maxcolors -= 2; |
426 |
> |
} else { |
427 |
> |
ourblack = 0; |
428 |
> |
ourwhite = ourvis.red_mask|ourvis.green_mask|ourvis.blue_mask; |
429 |
> |
} |
430 |
> |
XFree((char *)xvi); |
431 |
|
} |
432 |
|
|
433 |
|
|
434 |
|
getras() /* get raster file */ |
435 |
|
{ |
317 |
– |
colormap ourmap; |
436 |
|
XVisualInfo vinfo; |
437 |
|
|
438 |
|
if (maxcolors <= 2) { /* monochrome */ |
439 |
|
ourdata = (unsigned char *)malloc(ymax*((xmax+7)/8)); |
440 |
|
if (ourdata == NULL) |
441 |
|
goto fail; |
442 |
< |
ourras = make_raster(thedisplay, ourscreen, 1, ourdata, |
442 |
> |
ourras = make_raster(thedisplay, &ourvis, 1, ourdata, |
443 |
|
xmax, ymax, 8); |
444 |
|
if (ourras == NULL) |
445 |
|
goto fail; |
446 |
|
getmono(); |
447 |
< |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo) |
448 |
< |
/* kludge for DirectColor */ |
331 |
< |
|| XMatchVisualInfo(thedisplay,ourscreen,24,DirectColor,&vinfo)) { |
332 |
< |
ourdata = (unsigned char *)malloc(xmax*ymax*3); |
447 |
> |
} else if (ourvis.class == TrueColor | ourvis.class == DirectColor) { |
448 |
> |
ourdata = (unsigned char *)malloc(4*xmax*ymax); |
449 |
|
if (ourdata == NULL) |
450 |
|
goto fail; |
451 |
< |
ourras = make_raster(thedisplay, ourscreen, 24, ourdata, |
452 |
< |
xmax, ymax, 8); |
451 |
> |
ourras = make_raster(thedisplay, &ourvis, 32, |
452 |
> |
ourdata, xmax, ymax, 32); |
453 |
|
if (ourras == NULL) |
454 |
|
goto fail; |
455 |
|
getfull(); |
457 |
|
ourdata = (unsigned char *)malloc(xmax*ymax); |
458 |
|
if (ourdata == NULL) |
459 |
|
goto fail; |
460 |
< |
ourras = make_raster(thedisplay, ourscreen, 8, ourdata, |
460 |
> |
ourras = make_raster(thedisplay, &ourvis, 8, ourdata, |
461 |
|
xmax, ymax, 8); |
462 |
|
if (ourras == NULL) |
463 |
|
goto fail; |
464 |
< |
if (greyscale) |
465 |
< |
biq(dither,maxcolors,1,ourmap); |
464 |
> |
if (greyscale | ourvis.class == StaticGray) |
465 |
> |
getgrey(); |
466 |
|
else |
467 |
< |
ciq(dither,maxcolors,1,ourmap); |
468 |
< |
if (init_rcolors(ourras, ourmap[0], ourmap[1], ourmap[2]) == 0) |
467 |
> |
getmapped(); |
468 |
> |
if (ourvis.class != StaticGray && !init_rcolors(ourras,clrtab)) |
469 |
|
goto fail; |
470 |
|
} |
471 |
|
return; |
496 |
|
case MapNotify: |
497 |
|
map_rcolors(ourras, wind); |
498 |
|
if (fast) |
499 |
< |
make_rpixmap(ourras); |
499 |
> |
make_rpixmap(ourras, wind); |
500 |
|
break; |
501 |
|
case UnmapNotify: |
502 |
< |
unmap_rcolors(ourras); |
502 |
> |
if (!fast) |
503 |
> |
unmap_rcolors(ourras); |
504 |
|
break; |
505 |
|
case Expose: |
506 |
|
redraw(e.e.x, e.e.y, e.e.width, e.e.height); |
508 |
|
case ButtonPress: |
509 |
|
if (e.b.state & (ShiftMask|ControlMask)) |
510 |
|
moveimage(&e.b); |
511 |
+ |
else if (e.b.button == Button2) |
512 |
+ |
traceray(e.b.x, e.b.y); |
513 |
|
else |
514 |
|
getbox(&e.b); |
515 |
|
break; |
517 |
|
} |
518 |
|
|
519 |
|
|
520 |
< |
docom(ekey) /* execute command */ |
520 |
> |
traceray(xpos, ypos) /* print ray corresponding to pixel */ |
521 |
> |
int xpos, ypos; |
522 |
> |
{ |
523 |
> |
FLOAT hv[2]; |
524 |
> |
FVECT rorg, rdir; |
525 |
> |
|
526 |
> |
if (!gotview) { /* no view, no can do */ |
527 |
> |
XBell(thedisplay, 0); |
528 |
> |
return(-1); |
529 |
> |
} |
530 |
> |
pix2loc(hv, &inpres, xpos-xoff, ypos-yoff); |
531 |
> |
if (viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) |
532 |
> |
return(-1); |
533 |
> |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
534 |
> |
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
535 |
> |
fflush(stdout); |
536 |
> |
return(0); |
537 |
> |
} |
538 |
> |
|
539 |
> |
|
540 |
> |
docom(ekey) /* execute command */ |
541 |
|
XKeyPressedEvent *ekey; |
542 |
|
{ |
543 |
|
char buf[80]; |
545 |
|
XColor cvx; |
546 |
|
int com, n; |
547 |
|
double comp; |
548 |
< |
FVECT rorg, rdir; |
548 |
> |
FLOAT hv[2]; |
549 |
|
|
550 |
|
n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL); |
551 |
|
if (n == 0) |
553 |
|
com = buf[0]; |
554 |
|
switch (com) { /* interpret command */ |
555 |
|
case 'q': |
556 |
< |
case CTRL(D): /* quit */ |
557 |
< |
quit(0); |
556 |
> |
case 'Q': |
557 |
> |
case CTRL('D'): /* quit */ |
558 |
> |
quiterr(NULL); |
559 |
|
case '\n': |
560 |
|
case '\r': |
561 |
|
case 'l': |
594 |
|
XStoreColor(thedisplay, ourras->cmap, &cvx); |
595 |
|
return(0); |
596 |
|
case 'p': /* position */ |
597 |
< |
sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
597 |
> |
pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); |
598 |
> |
sprintf(buf, "(%d,%d)", (int)(hv[0]*inpres.xr), |
599 |
> |
(int)(hv[1]*inpres.yr)); |
600 |
|
XDrawImageString(thedisplay, wind, ourgc, ekey->x, ekey->y, |
601 |
|
buf, strlen(buf)); |
602 |
|
return(0); |
603 |
|
case 't': /* trace */ |
604 |
< |
if (!gotview) { |
463 |
< |
XBell(thedisplay, 0); |
464 |
< |
return(-1); |
465 |
< |
} |
466 |
< |
if (viewray(rorg, rdir, &ourview, |
467 |
< |
(ekey->x-xoff+.5)/xmax, |
468 |
< |
(ymax-1-ekey->y+yoff+.5)/ymax) < 0) |
469 |
< |
return(-1); |
470 |
< |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
471 |
< |
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
472 |
< |
fflush(stdout); |
473 |
< |
return(0); |
604 |
> |
return(traceray(ekey->x, ekey->y)); |
605 |
|
case '=': /* adjust exposure */ |
606 |
|
if (avgbox(cval) == -1) |
607 |
|
return(-1); |
618 |
|
free_raster(ourras); |
619 |
|
getras(); |
620 |
|
/* fall through */ |
621 |
< |
case CTRL(R): /* redraw */ |
622 |
< |
case CTRL(L): |
621 |
> |
case CTRL('R'): /* redraw */ |
622 |
> |
case CTRL('L'): |
623 |
|
unmap_rcolors(ourras); |
624 |
|
XClearWindow(thedisplay, wind); |
625 |
|
map_rcolors(ourras, wind); |
626 |
|
if (fast) |
627 |
< |
make_rpixmap(ourras); |
627 |
> |
make_rpixmap(ourras, wind); |
628 |
|
redraw(0, 0, width, height); |
629 |
|
return(0); |
630 |
+ |
case '0': /* recenter origin */ |
631 |
+ |
if (xoff == 0 & yoff == 0) |
632 |
+ |
return(0); |
633 |
+ |
xoff = yoff = 0; |
634 |
+ |
XClearWindow(thedisplay, wind); |
635 |
+ |
redraw(0, 0, width, height); |
636 |
+ |
return(0); |
637 |
|
case ' ': /* clear */ |
638 |
|
redraw(box.xmin, box.ymin, box.xsiz, box.ysiz); |
639 |
|
return(0); |
718 |
|
avgbox(clr) /* average color over current box */ |
719 |
|
COLOR clr; |
720 |
|
{ |
721 |
+ |
static COLOR lc; |
722 |
+ |
static int ll, lr, lt, lb; |
723 |
|
int left, right, top, bottom; |
724 |
|
int y; |
725 |
|
double d; |
743 |
|
bottom = ymax; |
744 |
|
if (top >= bottom) |
745 |
|
return(-1); |
746 |
+ |
if (left == ll && right == lr && top == lt && bottom == lb) { |
747 |
+ |
copycolor(clr, lc); |
748 |
+ |
return(0); |
749 |
+ |
} |
750 |
|
for (y = top; y < bottom; y++) { |
751 |
|
if (getscan(y) == -1) |
752 |
|
return(-1); |
757 |
|
} |
758 |
|
d = 1.0/((right-left)*(bottom-top)); |
759 |
|
scalecolor(clr, d); |
760 |
+ |
ll = left; lr = right; lt = top; lb = bottom; |
761 |
+ |
copycolor(lc, clr); |
762 |
|
return(0); |
763 |
|
} |
764 |
|
|
767 |
|
{ |
768 |
|
register unsigned char *dp; |
769 |
|
register int x, err; |
770 |
< |
int y; |
770 |
> |
int y, errp; |
771 |
|
short *cerr; |
772 |
|
|
773 |
|
if ((cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
774 |
|
quiterr("out of memory in getmono"); |
775 |
|
dp = ourdata - 1; |
776 |
|
for (y = 0; y < ymax; y++) { |
777 |
< |
if (getscan(y) < 0) |
632 |
< |
quiterr("seek error in getmono"); |
633 |
< |
normcolrs(scanline, xmax, scale); |
777 |
> |
getscan(y); |
778 |
|
add2icon(y, scanline); |
779 |
+ |
normcolrs(scanline, xmax, scale); |
780 |
|
err = 0; |
781 |
|
for (x = 0; x < xmax; x++) { |
782 |
|
if (!(x&7)) |
783 |
|
*++dp = 0; |
784 |
+ |
errp = err; |
785 |
|
err += normbright(scanline[x]) + cerr[x]; |
786 |
|
if (err > 127) |
787 |
|
err -= 255; |
788 |
|
else |
789 |
|
*dp |= 1<<(7-(x&07)); |
790 |
< |
cerr[x] = err >>= 1; |
790 |
> |
err /= 3; |
791 |
> |
cerr[x] = err + errp; |
792 |
|
} |
793 |
|
} |
794 |
|
free((char *)cerr); |
802 |
|
static short cerr[ICONSIZ]; |
803 |
|
static int ynext; |
804 |
|
static char *dp; |
805 |
+ |
COLR clr; |
806 |
|
register int err; |
807 |
|
register int x, ti; |
808 |
+ |
int errp; |
809 |
|
|
810 |
|
if (iconheight == 0) { /* initialize */ |
811 |
|
if (xmax <= ICONSIZ && ymax <= ICONSIZ) { |
814 |
|
} else if (xmax > ymax) { |
815 |
|
iconwidth = ICONSIZ; |
816 |
|
iconheight = ICONSIZ*ymax/xmax; |
817 |
+ |
if (iconheight < 1) |
818 |
+ |
iconheight = 1; |
819 |
|
} else { |
820 |
|
iconwidth = ICONSIZ*xmax/ymax; |
821 |
+ |
if (iconwidth < 1) |
822 |
+ |
iconwidth = 1; |
823 |
|
iconheight = ICONSIZ; |
824 |
|
} |
825 |
|
ynext = 0; |
831 |
|
for (x = 0; x < iconwidth; x++) { |
832 |
|
if (!(x&7)) |
833 |
|
*++dp = 0; |
834 |
+ |
errp = err; |
835 |
|
ti = x*xmax/iconwidth; |
836 |
< |
err += normbright(scan[ti]) + cerr[x]; |
836 |
> |
copycolr(clr, scan[ti]); |
837 |
> |
normcolrs(clr, 1, scale); |
838 |
> |
err += normbright(clr) + cerr[x]; |
839 |
|
if (err > 127) |
840 |
|
err -= 255; |
841 |
|
else |
842 |
|
*dp |= 1<<(x&07); |
843 |
< |
cerr[x] = err >>= 1; |
843 |
> |
err /= 3; |
844 |
> |
cerr[x] = err + errp; |
845 |
|
} |
846 |
|
ynext++; |
847 |
|
} |
850 |
|
getfull() /* get full (24-bit) data */ |
851 |
|
{ |
852 |
|
int y; |
853 |
+ |
register unsigned long *dp; |
854 |
+ |
register int x; |
855 |
+ |
/* set gamma correction */ |
856 |
+ |
setcolrgam(gamcor); |
857 |
+ |
/* read and convert file */ |
858 |
+ |
dp = (unsigned long *)ourdata; |
859 |
+ |
for (y = 0; y < ymax; y++) { |
860 |
+ |
getscan(y); |
861 |
+ |
add2icon(y, scanline); |
862 |
+ |
if (scale) |
863 |
+ |
shiftcolrs(scanline, xmax, scale); |
864 |
+ |
colrs_gambs(scanline, xmax); |
865 |
+ |
if (ourras->image->blue_mask & 1) |
866 |
+ |
for (x = 0; x < xmax; x++) |
867 |
+ |
*dp++ = scanline[x][RED] << 16 | |
868 |
+ |
scanline[x][GRN] << 8 | |
869 |
+ |
scanline[x][BLU] ; |
870 |
+ |
else |
871 |
+ |
for (x = 0; x < xmax; x++) |
872 |
+ |
*dp++ = scanline[x][RED] | |
873 |
+ |
scanline[x][GRN] << 8 | |
874 |
+ |
scanline[x][BLU] << 16 ; |
875 |
+ |
} |
876 |
+ |
} |
877 |
+ |
|
878 |
+ |
|
879 |
+ |
getgrey() /* get greyscale data */ |
880 |
+ |
{ |
881 |
+ |
int y; |
882 |
|
register unsigned char *dp; |
883 |
|
register int x; |
884 |
|
/* set gamma correction */ |
886 |
|
/* read and convert file */ |
887 |
|
dp = ourdata; |
888 |
|
for (y = 0; y < ymax; y++) { |
889 |
< |
if (getscan(y) < 0) |
890 |
< |
quiterr("seek error in getfull"); |
889 |
> |
getscan(y); |
890 |
> |
add2icon(y, scanline); |
891 |
|
if (scale) |
892 |
|
shiftcolrs(scanline, xmax, scale); |
893 |
+ |
for (x = 0; x < xmax; x++) |
894 |
+ |
scanline[x][GRN] = normbright(scanline[x]); |
895 |
|
colrs_gambs(scanline, xmax); |
896 |
+ |
if (maxcolors < 256) |
897 |
+ |
for (x = 0; x < xmax; x++) |
898 |
+ |
*dp++ = ((long)scanline[x][GRN] * |
899 |
+ |
maxcolors + maxcolors/2) >> 8; |
900 |
+ |
else |
901 |
+ |
for (x = 0; x < xmax; x++) |
902 |
+ |
*dp++ = scanline[x][GRN]; |
903 |
+ |
} |
904 |
+ |
for (x = 0; x < maxcolors; x++) |
905 |
+ |
clrtab[x][RED] = clrtab[x][GRN] = |
906 |
+ |
clrtab[x][BLU] = ((long)x*256 + 128)/maxcolors; |
907 |
+ |
} |
908 |
+ |
|
909 |
+ |
|
910 |
+ |
getmapped() /* get color-mapped data */ |
911 |
+ |
{ |
912 |
+ |
int y; |
913 |
+ |
/* set gamma correction */ |
914 |
+ |
setcolrgam(gamcor); |
915 |
+ |
/* make histogram */ |
916 |
+ |
new_histo(); |
917 |
+ |
for (y = 0; y < ymax; y++) { |
918 |
+ |
if (getscan(y) < 0) |
919 |
+ |
quiterr("seek error in getmapped"); |
920 |
|
add2icon(y, scanline); |
921 |
< |
for (x = 0; x < xmax; x++) { |
922 |
< |
*dp++ = scanline[x][RED]; |
923 |
< |
*dp++ = scanline[x][GRN]; |
924 |
< |
*dp++ = scanline[x][BLU]; |
713 |
< |
} |
921 |
> |
if (scale) |
922 |
> |
shiftcolrs(scanline, xmax, scale); |
923 |
> |
colrs_gambs(scanline, xmax); |
924 |
> |
cnt_colrs(scanline, xmax); |
925 |
|
} |
926 |
+ |
/* map pixels */ |
927 |
+ |
if (!new_clrtab(maxcolors)) |
928 |
+ |
quiterr("cannot create color map"); |
929 |
+ |
for (y = 0; y < ymax; y++) { |
930 |
+ |
if (getscan(y) < 0) |
931 |
+ |
quiterr("seek error in getmapped"); |
932 |
+ |
if (scale) |
933 |
+ |
shiftcolrs(scanline, xmax, scale); |
934 |
+ |
colrs_gambs(scanline, xmax); |
935 |
+ |
if (dither) |
936 |
+ |
dith_colrs(ourdata+y*xmax, scanline, xmax); |
937 |
+ |
else |
938 |
+ |
map_colrs(ourdata+y*xmax, scanline, xmax); |
939 |
+ |
} |
940 |
|
} |
941 |
|
|
942 |
|
|
977 |
|
if (fseek(fin, scanpos[y], 0) == -1) |
978 |
|
quiterr("fseek error"); |
979 |
|
cury = y; |
980 |
< |
} else if (scanpos != NULL) |
980 |
> |
} else if (scanpos != NULL && scanpos[y] == -1) |
981 |
|
scanpos[y] = ftell(fin); |
982 |
|
|
983 |
|
if (freadcolrs(scanline, xmax, fin) < 0) |
985 |
|
|
986 |
|
cury++; |
987 |
|
return(0); |
763 |
– |
} |
764 |
– |
|
765 |
– |
|
766 |
– |
picreadline3(y, l3) /* read in 3-byte scanline */ |
767 |
– |
int y; |
768 |
– |
register rgbpixel *l3; |
769 |
– |
{ |
770 |
– |
register int i; |
771 |
– |
/* read scanline */ |
772 |
– |
if (getscan(y) < 0) |
773 |
– |
quiterr("cannot seek for picreadline"); |
774 |
– |
/* convert scanline */ |
775 |
– |
normcolrs(scanline, xmax, scale); |
776 |
– |
add2icon(y, scanline); |
777 |
– |
for (i = 0; i < xmax; i++) { |
778 |
– |
l3[i].r = scanline[i][RED]; |
779 |
– |
l3[i].g = scanline[i][GRN]; |
780 |
– |
l3[i].b = scanline[i][BLU]; |
781 |
– |
} |
782 |
– |
} |
783 |
– |
|
784 |
– |
|
785 |
– |
picwriteline(y, l) /* add 8-bit scanline to image */ |
786 |
– |
int y; |
787 |
– |
pixel *l; |
788 |
– |
{ |
789 |
– |
bcopy((char *)l, (char *)ourdata+y*xmax, xmax); |
790 |
– |
} |
791 |
– |
|
792 |
– |
|
793 |
– |
picreadcm(map) /* do gamma correction */ |
794 |
– |
colormap map; |
795 |
– |
{ |
796 |
– |
extern double pow(); |
797 |
– |
register int i, val; |
798 |
– |
|
799 |
– |
for (i = 0; i < 256; i++) { |
800 |
– |
val = pow((i+0.5)/256.0, 1.0/gamcor) * 256.0; |
801 |
– |
map[0][i] = map[1][i] = map[2][i] = val; |
802 |
– |
} |
803 |
– |
} |
804 |
– |
|
805 |
– |
|
806 |
– |
picwritecm(map) /* handled elsewhere */ |
807 |
– |
colormap map; |
808 |
– |
{ |
809 |
– |
#ifdef DEBUG |
810 |
– |
register int i; |
811 |
– |
|
812 |
– |
for (i = 0; i < 256; i++) |
813 |
– |
printf("%d %d %d\n", map[0][i],map[1][i],map[2][i]); |
814 |
– |
#endif |
988 |
|
} |