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/* Copyright (c) 1990 Regents of the University of California */ |
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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
4 |
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static char SCCSid[] = "$SunId$ SGI"; |
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#endif |
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/* |
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#include "standard.h" |
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#include <signal.h> |
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#include <X11/Xlib.h> |
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#include <X11/cursorfont.h> |
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#include <X11/Xutil.h> |
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#include <X11/Xatom.h> |
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|
30 |
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#undef NOPROTO |
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#define NOPROTO 1 |
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#include "color.h" |
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#include "tonemap.h" |
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#include "view.h" |
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#include "pic.h" |
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#include "x11raster.h" |
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#include "random.h" |
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#include "resolu.h" |
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|
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#define FONTNAME "8x13" /* text font we'll use */ |
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|
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#define CTRL(c) ('c'-'@') |
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#define CTRL(c) ((c)-'@') |
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|
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#define BORWIDTH 5 /* border width */ |
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|
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#define ICONSIZ (8*10) /* maximum icon dimension (even 8) */ |
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|
47 |
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#define FIXWEIGHT 20 /* weight to add for fixation points */ |
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|
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#define ourscreen DefaultScreen(thedisplay) |
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#define ourblack BlackPixel(thedisplay,ourscreen) |
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#define ourwhite WhitePixel(thedisplay,ourscreen) |
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#define ourroot RootWindow(thedisplay,ourscreen) |
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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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#define redraw(x,y,w,h) patch_raster(wind,(x)-xoff,(y)-yoff,x,y,w,h,ourras) |
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|
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double gamcor = 2.2; /* gamma correction */ |
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char *gamstr = NULL; /* gamma value override */ |
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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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|
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Window wind = 0; /* our output window */ |
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Font fontid; /* our font */ |
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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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int maxcolors = 0; /* maximum colors */ |
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int greyscale = 0; /* in grey */ |
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|
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int xoff = 0; /* x image offset */ |
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int yoff = 0; /* y image offset */ |
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|
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int parent = 0; /* number of children, -1 if child */ |
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int sequential = 0; /* display images in sequence */ |
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|
77 |
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char *tout = "od"; /* output of 't' command */ |
78 |
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int tinterv = 0; /* interval between mouse reports */ |
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|
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int tmflags = TM_F_LINEAR; /* tone mapping flags */ |
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|
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VIEW ourview = STDVIEW; /* image view parameters */ |
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int gotview = 0; /* got parameters from file */ |
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|
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COLR *scanline; /* scan line buffer */ |
86 |
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TMbright *lscan; /* encoded luminance scanline */ |
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BYTE *cscan; /* encoded chroma scanline */ |
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BYTE *pscan; /* compute pixel scanline */ |
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|
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int xmax, ymax; /* picture resolution */ |
90 |
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RESOLU inpres; /* input resolution and ordering */ |
91 |
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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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double exposure = 1.0; /* exposure compensation used */ |
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|
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XRASTER *ourras; /* our stored image */ |
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int wrongformat = 0; /* input in another format? */ |
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|
102 |
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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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int *ourrank; /* our visual class ranking */ |
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XVisualInfo ourvis; /* our visual */ |
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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 *geometry = NULL; /* geometry specification */ |
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|
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char icondata[ICONSIZ*ICONSIZ/8]; /* icon bitmap data */ |
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int iconwidth = 0, iconheight = 0; |
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|
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char *progname; |
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|
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char errmsg[128]; |
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|
123 |
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BYTE clrtab[256][3]; /* global color map */ |
124 |
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|
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extern long ftell(); |
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|
127 |
< |
extern char *malloc(), *calloc(); |
127 |
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extern char *getenv(); |
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|
95 |
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extern double atof(), pow(), log(); |
96 |
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|
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Display *thedisplay; |
130 |
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Atom closedownAtom, wmProtocolsAtom; |
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|
132 |
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int sigrecv; |
133 |
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|
134 |
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int onsig() { sigrecv++; } |
135 |
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|
136 |
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|
137 |
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main(argc, argv) |
138 |
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int argc; |
139 |
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char *argv[]; |
140 |
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{ |
141 |
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int headline(); |
142 |
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int i; |
143 |
+ |
int pid; |
144 |
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|
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progname = argv[0]; |
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|
147 |
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for (i = 1; i < argc; i++) |
148 |
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if (argv[i][0] == '-') |
149 |
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switch (argv[i][1]) { |
150 |
< |
case 'c': |
150 |
> |
case 'c': /* number of colors */ |
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maxcolors = atoi(argv[++i]); |
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break; |
153 |
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case 'b': |
153 |
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case 'b': /* greyscale only */ |
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greyscale = !greyscale; |
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break; |
156 |
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case 'm': |
156 |
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case 'm': /* monochrome */ |
157 |
> |
greyscale = 1; |
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maxcolors = 2; |
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break; |
160 |
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case 'd': |
161 |
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dither = !dither; |
160 |
> |
case 'd': /* display or dither */ |
161 |
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if (argv[i][2] == 'i') |
162 |
> |
dispname = argv[++i]; |
163 |
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else |
164 |
> |
dither = !dither; |
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break; |
166 |
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case 'f': |
166 |
> |
case 'f': /* save pixmap */ |
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fast = !fast; |
168 |
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break; |
169 |
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case 'e': |
170 |
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if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
169 |
> |
case 's': /* one at a time */ |
170 |
> |
sequential = !sequential; |
171 |
> |
break; |
172 |
> |
case 'o': /* 't' output */ |
173 |
> |
tout = argv[i]+2; |
174 |
> |
break; |
175 |
> |
case 't': /* msec interval */ |
176 |
> |
tinterv = atoi(argv[++i]); |
177 |
> |
break; |
178 |
> |
case 'e': /* exposure comp. */ |
179 |
> |
i++; |
180 |
> |
if (argv[i][0] == 'a') { |
181 |
> |
tmflags = TM_F_CAMERA; |
182 |
> |
break; |
183 |
> |
} |
184 |
> |
if (argv[i][0] == 'h') { |
185 |
> |
tmflags = TM_F_HUMAN; |
186 |
> |
break; |
187 |
> |
} |
188 |
> |
if (argv[i][0] != '+' && argv[i][0] != '-') |
189 |
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goto userr; |
190 |
< |
scale = atoi(argv[++i]); |
190 |
> |
scale = atoi(argv[i]); |
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break; |
192 |
< |
case 'g': |
193 |
< |
if (!strcmp(argv[i], "-geometry")) |
192 |
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case 'g': /* gamma comp. */ |
193 |
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if (argv[i][2] == 'e') |
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geometry = argv[++i]; |
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else |
196 |
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gamcor = atof(argv[++i]); |
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> |
gamstr = argv[++i]; |
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break; |
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default: |
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goto userr; |
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else |
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break; |
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|
206 |
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if (i == argc-1) { |
206 |
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if (i > argc) |
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goto userr; |
208 |
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while (i < argc-1) { |
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sigrecv = 0; |
210 |
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signal(SIGCONT, onsig); |
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if ((pid=fork()) == 0) { /* a child for each picture */ |
212 |
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parent = -1; |
213 |
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break; |
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} |
215 |
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if (pid < 0) |
216 |
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quiterr("fork failed"); |
217 |
> |
parent++; |
218 |
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while (!sigrecv) |
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pause(); /* wait for wake-up call */ |
220 |
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i++; |
221 |
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} |
222 |
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if (i < argc) { /* open picture file */ |
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fname = argv[i]; |
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fin = fopen(fname, "r"); |
225 |
< |
if (fin == NULL) { |
226 |
< |
sprintf(errmsg, "can't open file \"%s\"", fname); |
227 |
< |
quiterr(errmsg); |
151 |
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} |
152 |
< |
} else if (i != argc) |
153 |
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goto userr; |
225 |
> |
if (fin == NULL) |
226 |
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quiterr("cannot open picture file"); |
227 |
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} |
228 |
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/* get header */ |
229 |
< |
getheader(fin, headline); |
229 |
> |
getheader(fin, headline, NULL); |
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/* get picture dimensions */ |
231 |
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if (fgetresolu(&xmax, &ymax, fin) != (YMAJOR|YDECR)) |
232 |
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quiterr("bad picture size"); |
231 |
> |
if (wrongformat || !fgetsresolu(&inpres, fin)) |
232 |
> |
quiterr("bad picture format"); |
233 |
> |
xmax = scanlen(&inpres); |
234 |
> |
ymax = numscans(&inpres); |
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/* set view parameters */ |
236 |
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if (gotview && setview(&ourview) != NULL) |
237 |
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gotview = 0; |
238 |
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if ((scanline = (COLR *)malloc(xmax*sizeof(COLR))) == NULL) |
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quiterr("out of memory"); |
240 |
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|
241 |
< |
init(); /* get file and open window */ |
241 |
> |
init(argc, argv); /* get file and open window */ |
242 |
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|
243 |
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for ( ; ; ) |
244 |
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getevent(); /* main loop */ |
245 |
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userr: |
246 |
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fprintf(stderr, |
247 |
< |
"Usage: %s [-geometry spec][-b][-m][-d][-f][-c ncolors][-e +/-stops] file\n", |
247 |
> |
"Usage: %s [-di disp][[-ge] spec][-b][-m][-d][-f][-c nclrs][-e spec][-g gamcor][-s][-ospec][-t intvl] pic ..\n", |
248 |
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progname); |
249 |
< |
quit(1); |
249 |
> |
exit(1); |
250 |
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} |
251 |
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|
252 |
|
|
253 |
+ |
int |
254 |
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headline(s) /* get relevant info from header */ |
255 |
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char *s; |
256 |
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{ |
257 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
181 |
< |
register char **an; |
257 |
> |
char fmt[32]; |
258 |
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|
259 |
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if (isexpos(s)) |
260 |
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exposure *= exposval(s); |
261 |
< |
else |
262 |
< |
for (an = altname; *an != NULL; an++) |
263 |
< |
if (!strncmp(*an, s, strlen(*an))) { |
264 |
< |
if (sscanview(&ourview, s+strlen(*an)) > 0) |
265 |
< |
gotview++; |
190 |
< |
return; |
191 |
< |
} |
261 |
> |
else if (formatval(fmt, s)) |
262 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
263 |
> |
else if (isview(s) && sscanview(&ourview, s) > 0) |
264 |
> |
gotview++; |
265 |
> |
return(0); |
266 |
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} |
267 |
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|
268 |
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|
269 |
< |
init() /* get data and open window */ |
269 |
> |
init(argc, argv) /* get data and open window */ |
270 |
> |
int argc; |
271 |
> |
char **argv; |
272 |
|
{ |
273 |
< |
XSizeHints oursizhints; |
274 |
< |
register int i; |
273 |
> |
XSetWindowAttributes ourwinattr; |
274 |
> |
XClassHint xclshints; |
275 |
> |
XWMHints xwmhints; |
276 |
> |
XSizeHints xszhints; |
277 |
> |
XTextProperty windowName, iconName; |
278 |
> |
XGCValues xgcv; |
279 |
> |
char *name; |
280 |
> |
register int i; |
281 |
|
|
282 |
|
if (fname != NULL) { |
283 |
|
scanpos = (long *)malloc(ymax*sizeof(long)); |
284 |
|
if (scanpos == NULL) |
285 |
< |
goto memerr; |
285 |
> |
quiterr("out of memory"); |
286 |
|
for (i = 0; i < ymax; i++) |
287 |
|
scanpos[i] = -1; |
288 |
< |
} |
289 |
< |
if ((thedisplay = XOpenDisplay(NULL)) == NULL) |
290 |
< |
quiterr("can't open display; DISPLAY variable set?"); |
291 |
< |
wind = XCreateSimpleWindow(thedisplay, |
292 |
< |
ourroot, 0, 0, xmax, ymax, BORWIDTH, ourblack, ourwhite); |
293 |
< |
if (wind == 0) |
294 |
< |
quiterr("can't create window"); |
295 |
< |
if (maxcolors == 0) { /* get number of available colors */ |
296 |
< |
i = DisplayPlanes(thedisplay,ourscreen); |
297 |
< |
maxcolors = i > 8 ? 256 : 1<<i; |
298 |
< |
if (maxcolors > 4) maxcolors -= 2; |
299 |
< |
} |
300 |
< |
fontid = XLoadFont(thedisplay, FONTNAME); |
301 |
< |
if (fontid == 0) |
302 |
< |
quiterr("can't get font"); |
303 |
< |
XSetFont(thedisplay, ourgc, fontid); |
304 |
< |
XStoreName(thedisplay, wind, fname == NULL ? progname : fname); |
305 |
< |
XDefineCursor(thedisplay, wind, XCreateFontCursor(thedisplay, |
306 |
< |
XC_diamond_cross)); |
288 |
> |
name = fname; |
289 |
> |
} else |
290 |
> |
name = progname; |
291 |
> |
/* remove directory prefix from name */ |
292 |
> |
for (i = strlen(name); i-- > 0; ) |
293 |
> |
if (name[i] == '/') |
294 |
> |
break; |
295 |
> |
name += i+1; |
296 |
> |
if ((thedisplay = XOpenDisplay(dispname)) == NULL) |
297 |
> |
quiterr("cannot open display"); |
298 |
> |
/* set gamma value */ |
299 |
> |
if (gamstr == NULL) /* get it from the X server */ |
300 |
> |
gamstr = XGetDefault(thedisplay, "radiance", "gamma"); |
301 |
> |
if (gamstr == NULL) /* get it from the environment */ |
302 |
> |
gamstr = getenv("DISPLAY_GAMMA"); |
303 |
> |
if (gamstr != NULL) |
304 |
> |
gamcor = atof(gamstr); |
305 |
> |
/* get best visual for default screen */ |
306 |
> |
getbestvis(); |
307 |
> |
/* store image */ |
308 |
> |
getras(); |
309 |
> |
/* get size and position */ |
310 |
> |
xszhints.flags = 0; |
311 |
> |
xszhints.width = xmax; xszhints.height = ymax; |
312 |
|
if (geometry != NULL) { |
313 |
< |
bzero((char *)&oursizhints, sizeof(oursizhints)); |
314 |
< |
i = XParseGeometry(geometry, &oursizhints.x, &oursizhints.y, |
315 |
< |
&oursizhints.width, &oursizhints.height); |
313 |
> |
i = XParseGeometry(geometry, &xszhints.x, &xszhints.y, |
314 |
> |
(unsigned *)&xszhints.width, |
315 |
> |
(unsigned *)&xszhints.height); |
316 |
|
if ((i&(WidthValue|HeightValue)) == (WidthValue|HeightValue)) |
317 |
< |
oursizhints.flags |= USSize; |
318 |
< |
else { |
319 |
< |
oursizhints.width = xmax; |
233 |
< |
oursizhints.height = ymax; |
234 |
< |
oursizhints.flags |= PSize; |
235 |
< |
} |
317 |
> |
xszhints.flags |= USSize; |
318 |
> |
else |
319 |
> |
xszhints.flags |= PSize; |
320 |
|
if ((i&(XValue|YValue)) == (XValue|YValue)) { |
321 |
< |
oursizhints.flags |= USPosition; |
321 |
> |
xszhints.flags |= USPosition; |
322 |
|
if (i & XNegative) |
323 |
< |
oursizhints.x += DisplayWidth(thedisplay, |
324 |
< |
ourscreen)-1-oursizhints.width-2*BORWIDTH; |
323 |
> |
xszhints.x += DisplayWidth(thedisplay, |
324 |
> |
ourscreen)-1-xszhints.width-2*BORWIDTH; |
325 |
|
if (i & YNegative) |
326 |
< |
oursizhints.y += DisplayHeight(thedisplay, |
327 |
< |
ourscreen)-1-oursizhints.height-2*BORWIDTH; |
326 |
> |
xszhints.y += DisplayHeight(thedisplay, |
327 |
> |
ourscreen)-1-xszhints.height-2*BORWIDTH; |
328 |
|
} |
245 |
– |
XSetNormalHints(thedisplay, wind, &oursizhints); |
329 |
|
} |
330 |
< |
/* store image */ |
331 |
< |
getras(); |
332 |
< |
XSelectInput(thedisplay, wind, ButtonPressMask|ButtonReleaseMask |
333 |
< |
|ButtonMotionMask|StructureNotifyMask |
334 |
< |
|KeyPressMask|ExposureMask); |
330 |
> |
/* open window */ |
331 |
> |
i = CWEventMask|CWCursor|CWBackPixel|CWBorderPixel; |
332 |
> |
ourwinattr.border_pixel = ourwhite; |
333 |
> |
ourwinattr.background_pixel = ourblack; |
334 |
> |
if (ourvis.visual != DefaultVisual(thedisplay,ourscreen)) { |
335 |
> |
ourwinattr.colormap = newcmap(thedisplay, ourscreen, ourvis.visual); |
336 |
> |
i |= CWColormap; |
337 |
> |
} |
338 |
> |
ourwinattr.event_mask = ExposureMask|KeyPressMask|ButtonPressMask| |
339 |
> |
ButtonReleaseMask|ButtonMotionMask|StructureNotifyMask; |
340 |
> |
ourwinattr.cursor = XCreateFontCursor(thedisplay, XC_diamond_cross); |
341 |
> |
wind = XCreateWindow(thedisplay, ourroot, xszhints.x, xszhints.y, |
342 |
> |
xszhints.width, xszhints.height, BORWIDTH, |
343 |
> |
ourvis.depth, InputOutput, ourvis.visual, |
344 |
> |
i, &ourwinattr); |
345 |
> |
if (wind == 0) |
346 |
> |
quiterr("cannot create window"); |
347 |
> |
width = xmax; |
348 |
> |
height = ymax; |
349 |
> |
/* prepare graphics drawing context */ |
350 |
> |
if ((xgcv.font = XLoadFont(thedisplay, FONTNAME)) == 0) |
351 |
> |
quiterr("cannot get font"); |
352 |
> |
xgcv.foreground = ourblack; |
353 |
> |
xgcv.background = ourwhite; |
354 |
> |
ourgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| |
355 |
> |
GCFont, &xgcv); |
356 |
> |
xgcv.function = GXinvert; |
357 |
> |
revgc = XCreateGC(thedisplay, wind, GCForeground|GCBackground| |
358 |
> |
GCFunction, &xgcv); |
359 |
> |
|
360 |
> |
/* set up the window manager */ |
361 |
> |
xwmhints.flags = InputHint|IconPixmapHint; |
362 |
> |
xwmhints.input = True; |
363 |
> |
xwmhints.icon_pixmap = XCreateBitmapFromData(thedisplay, |
364 |
> |
wind, icondata, iconwidth, iconheight); |
365 |
> |
|
366 |
> |
windowName.encoding = iconName.encoding = XA_STRING; |
367 |
> |
windowName.format = iconName.format = 8; |
368 |
> |
windowName.value = (u_char *)name; |
369 |
> |
windowName.nitems = strlen(windowName.value); |
370 |
> |
iconName.value = (u_char *)name; |
371 |
> |
iconName.nitems = strlen(windowName.value); |
372 |
> |
|
373 |
> |
xclshints.res_name = NULL; |
374 |
> |
xclshints.res_class = "Ximage"; |
375 |
> |
XSetWMProperties(thedisplay, wind, &windowName, &iconName, |
376 |
> |
argv, argc, &xszhints, &xwmhints, &xclshints); |
377 |
> |
closedownAtom = XInternAtom(thedisplay, "WM_DELETE_WINDOW", False); |
378 |
> |
wmProtocolsAtom = XInternAtom(thedisplay, "WM_PROTOCOLS", False); |
379 |
> |
XSetWMProtocols(thedisplay, wind, &closedownAtom, 1); |
380 |
> |
|
381 |
|
XMapWindow(thedisplay, wind); |
253 |
– |
return; |
254 |
– |
memerr: |
255 |
– |
quiterr("out of memory"); |
382 |
|
} /* end of init */ |
383 |
|
|
384 |
|
|
385 |
|
quiterr(err) /* print message and exit */ |
386 |
|
char *err; |
387 |
|
{ |
388 |
< |
if (err != NULL) { |
389 |
< |
fprintf(stderr, "%s: %s\n", progname, err); |
390 |
< |
exit(1); |
388 |
> |
register int es; |
389 |
> |
int cs; |
390 |
> |
|
391 |
> |
if (es = err != NULL) |
392 |
> |
fprintf(stderr, "%s: %s: %s\n", progname, |
393 |
> |
fname==NULL?"<stdin>":fname, err); |
394 |
> |
if (thedisplay != NULL) |
395 |
> |
XCloseDisplay(thedisplay); |
396 |
> |
if (parent < 0 & sigrecv == 0) |
397 |
> |
kill(getppid(), SIGCONT); |
398 |
> |
while (parent > 0 && wait(&cs) != -1) { /* wait for any children */ |
399 |
> |
if (es == 0) |
400 |
> |
es = cs>>8 & 0xff; |
401 |
> |
parent--; |
402 |
|
} |
403 |
< |
exit(0); |
403 |
> |
exit(es); |
404 |
|
} |
405 |
|
|
406 |
|
|
407 |
< |
eputs(s) |
408 |
< |
char *s; |
407 |
> |
static int |
408 |
> |
viscmp(v1,v2) /* compare visual to see which is better, descending */ |
409 |
> |
register XVisualInfo *v1, *v2; |
410 |
|
{ |
411 |
< |
fputs(s, stderr); |
411 |
> |
int bad1 = 0, bad2 = 0; |
412 |
> |
register int *rp; |
413 |
> |
|
414 |
> |
if (v1->class == v2->class) { |
415 |
> |
if (v1->class == TrueColor || v1->class == DirectColor) { |
416 |
> |
/* prefer 24-bit to 32-bit */ |
417 |
> |
if (v1->depth == 24 && v2->depth == 32) |
418 |
> |
return(-1); |
419 |
> |
if (v1->depth == 32 && v2->depth == 24) |
420 |
> |
return(1); |
421 |
> |
return(0); |
422 |
> |
} |
423 |
> |
/* don't be too greedy */ |
424 |
> |
if (maxcolors <= 1<<v1->depth && maxcolors <= 1<<v2->depth) |
425 |
> |
return(v1->depth - v2->depth); |
426 |
> |
return(v2->depth - v1->depth); |
427 |
> |
} |
428 |
> |
/* prefer Pseudo when < 24-bit */ |
429 |
> |
if ((v1->class == TrueColor || v1->class == DirectColor) && |
430 |
> |
v1->depth < 24) |
431 |
> |
bad1 = 1; |
432 |
> |
if ((v2->class == TrueColor || v2->class == DirectColor) && |
433 |
> |
v2->depth < 24) |
434 |
> |
bad2 = -1; |
435 |
> |
if (bad1 | bad2) |
436 |
> |
return(bad1+bad2); |
437 |
> |
/* otherwise, use class ranking */ |
438 |
> |
for (rp = ourrank; *rp != -1; rp++) { |
439 |
> |
if (v1->class == *rp) |
440 |
> |
return(-1); |
441 |
> |
if (v2->class == *rp) |
442 |
> |
return(1); |
443 |
> |
} |
444 |
> |
return(0); |
445 |
|
} |
446 |
|
|
447 |
|
|
448 |
< |
quit(code) |
278 |
< |
int code; |
448 |
> |
getbestvis() /* get the best visual for this screen */ |
449 |
|
{ |
450 |
< |
exit(code); |
450 |
> |
#ifdef DEBUG |
451 |
> |
static char vistype[][12] = { |
452 |
> |
"StaticGray", |
453 |
> |
"GrayScale", |
454 |
> |
"StaticColor", |
455 |
> |
"PseudoColor", |
456 |
> |
"TrueColor", |
457 |
> |
"DirectColor" |
458 |
> |
}; |
459 |
> |
#endif |
460 |
> |
static int rankings[3][6] = { |
461 |
> |
{TrueColor,DirectColor,PseudoColor,GrayScale,StaticGray,-1}, |
462 |
> |
{PseudoColor,GrayScale,StaticGray,-1}, |
463 |
> |
{PseudoColor,GrayScale,StaticGray,-1} |
464 |
> |
}; |
465 |
> |
XVisualInfo *xvi; |
466 |
> |
int vismatched; |
467 |
> |
register int i, j; |
468 |
> |
|
469 |
> |
if (greyscale) { |
470 |
> |
ourrank = rankings[2]; |
471 |
> |
if (maxcolors < 2) maxcolors = 256; |
472 |
> |
} else if (maxcolors >= 2 && maxcolors <= 256) |
473 |
> |
ourrank = rankings[1]; |
474 |
> |
else { |
475 |
> |
ourrank = rankings[0]; |
476 |
> |
maxcolors = 256; |
477 |
> |
} |
478 |
> |
/* find best visual */ |
479 |
> |
ourvis.screen = ourscreen; |
480 |
> |
xvi = XGetVisualInfo(thedisplay,VisualScreenMask,&ourvis,&vismatched); |
481 |
> |
if (xvi == NULL) |
482 |
> |
quiterr("no visuals for this screen!"); |
483 |
> |
#ifdef DEBUG |
484 |
> |
fprintf(stderr, "Supported visuals:\n"); |
485 |
> |
for (i = 0; i < vismatched; i++) |
486 |
> |
fprintf(stderr, "\ttype %s, depth %d\n", |
487 |
> |
vistype[xvi[i].class], xvi[i].depth); |
488 |
> |
#endif |
489 |
> |
for (i = 0, j = 1; j < vismatched; j++) |
490 |
> |
if (viscmp(&xvi[i],&xvi[j]) > 0) |
491 |
> |
i = j; |
492 |
> |
/* compare to least acceptable */ |
493 |
> |
for (j = 0; ourrank[j++] != -1; ) |
494 |
> |
; |
495 |
> |
ourvis.class = ourrank[--j]; |
496 |
> |
ourvis.depth = 1; |
497 |
> |
if (viscmp(&xvi[i],&ourvis) > 0) |
498 |
> |
quiterr("inadequate visuals on this screen"); |
499 |
> |
/* OK, we'll use it */ |
500 |
> |
copystruct(&ourvis, &xvi[i]); |
501 |
> |
#ifdef DEBUG |
502 |
> |
fprintf(stderr, "Selected visual type %s, depth %d\n", |
503 |
> |
vistype[ourvis.class], ourvis.depth); |
504 |
> |
#endif |
505 |
> |
/* make appropriate adjustments */ |
506 |
> |
if (ourvis.class == GrayScale || ourvis.class == StaticGray) |
507 |
> |
greyscale = 1; |
508 |
> |
if (ourvis.depth <= 8 && ourvis.colormap_size < maxcolors) |
509 |
> |
maxcolors = ourvis.colormap_size; |
510 |
> |
if (ourvis.class == StaticGray) { |
511 |
> |
ourblack = 0; |
512 |
> |
ourwhite = 255; |
513 |
> |
} else if (ourvis.class == PseudoColor) { |
514 |
> |
ourblack = BlackPixel(thedisplay,ourscreen); |
515 |
> |
ourwhite = WhitePixel(thedisplay,ourscreen); |
516 |
> |
if ((ourblack|ourwhite) & ~255L) { |
517 |
> |
ourblack = 0; |
518 |
> |
ourwhite = 1; |
519 |
> |
} |
520 |
> |
if (maxcolors > 4) |
521 |
> |
maxcolors -= 2; |
522 |
> |
} else { |
523 |
> |
ourblack = 0; |
524 |
> |
ourwhite = ourvis.red_mask|ourvis.green_mask|ourvis.blue_mask; |
525 |
> |
} |
526 |
> |
XFree((char *)xvi); |
527 |
|
} |
528 |
|
|
529 |
|
|
530 |
|
getras() /* get raster file */ |
531 |
|
{ |
286 |
– |
colormap ourmap; |
532 |
|
XVisualInfo vinfo; |
533 |
|
|
534 |
|
if (maxcolors <= 2) { /* monochrome */ |
535 |
|
ourdata = (unsigned char *)malloc(ymax*((xmax+7)/8)); |
536 |
|
if (ourdata == NULL) |
537 |
|
goto fail; |
538 |
< |
ourras = make_raster(thedisplay, ourscreen, 1, ourdata, |
538 |
> |
ourras = make_raster(thedisplay, &ourvis, 1, ourdata, |
539 |
|
xmax, ymax, 8); |
540 |
|
if (ourras == NULL) |
541 |
|
goto fail; |
542 |
|
getmono(); |
543 |
< |
} else if (XMatchVisualInfo(thedisplay,ourscreen,24,TrueColor,&vinfo)) { |
544 |
< |
ourdata = (unsigned char *)malloc(xmax*ymax*3); |
543 |
> |
} else if (ourvis.class == TrueColor | ourvis.class == DirectColor) { |
544 |
> |
ourdata = (unsigned char *)malloc(sizeof(int4)*xmax*ymax); |
545 |
|
if (ourdata == NULL) |
546 |
|
goto fail; |
547 |
< |
ourras = make_raster(thedisplay, ourscreen, 24, ourdata, |
548 |
< |
xmax, ymax, 8); |
547 |
> |
ourras = make_raster(thedisplay, &ourvis, sizeof(int4)*8, |
548 |
> |
ourdata, xmax, ymax, 32); |
549 |
|
if (ourras == NULL) |
550 |
|
goto fail; |
551 |
|
getfull(); |
553 |
|
ourdata = (unsigned char *)malloc(xmax*ymax); |
554 |
|
if (ourdata == NULL) |
555 |
|
goto fail; |
556 |
< |
ourras = make_raster(thedisplay, ourscreen, 8, ourdata, |
556 |
> |
ourras = make_raster(thedisplay, &ourvis, 8, ourdata, |
557 |
|
xmax, ymax, 8); |
558 |
|
if (ourras == NULL) |
559 |
|
goto fail; |
560 |
|
if (greyscale) |
561 |
< |
biq(dither,maxcolors,1,ourmap); |
561 |
> |
getgrey(); |
562 |
|
else |
563 |
< |
ciq(dither,maxcolors,1,ourmap); |
564 |
< |
if (init_rcolors(ourras, ourmap[0], ourmap[1], ourmap[2]) == 0) |
563 |
> |
getmapped(); |
564 |
> |
if (ourvis.class != StaticGray && !init_rcolors(ourras,clrtab)) |
565 |
|
goto fail; |
566 |
|
} |
567 |
|
return; |
568 |
|
fail: |
569 |
< |
quit("could not create raster image"); |
569 |
> |
quiterr("could not create raster image"); |
570 |
|
} |
571 |
|
|
572 |
|
|
573 |
|
getevent() /* process the next event */ |
574 |
|
{ |
575 |
< |
union { |
331 |
< |
XEvent u; |
332 |
< |
XConfigureEvent c; |
333 |
< |
XExposeEvent e; |
334 |
< |
XButtonPressedEvent b; |
335 |
< |
XKeyPressedEvent k; |
336 |
< |
} e; |
575 |
> |
XEvent xev; |
576 |
|
|
577 |
< |
XNextEvent(thedisplay, &e.u); |
578 |
< |
switch (e.u.type) { |
577 |
> |
XNextEvent(thedisplay, &xev); |
578 |
> |
switch ((int)xev.type) { |
579 |
|
case KeyPress: |
580 |
< |
docom(&e.k); |
580 |
> |
docom(&xev.xkey); |
581 |
|
break; |
582 |
|
case ConfigureNotify: |
583 |
< |
width = e.c.width; |
584 |
< |
height = e.c.height; |
583 |
> |
width = xev.xconfigure.width; |
584 |
> |
height = xev.xconfigure.height; |
585 |
|
break; |
586 |
|
case MapNotify: |
587 |
|
map_rcolors(ourras, wind); |
588 |
|
if (fast) |
589 |
< |
make_rpixmap(ourras); |
589 |
> |
make_rpixmap(ourras, wind); |
590 |
> |
if (!sequential & parent < 0 & sigrecv == 0) { |
591 |
> |
kill(getppid(), SIGCONT); |
592 |
> |
sigrecv--; |
593 |
> |
} |
594 |
|
break; |
595 |
|
case UnmapNotify: |
596 |
< |
unmap_rcolors(ourras); |
596 |
> |
if (!fast) |
597 |
> |
unmap_rcolors(ourras); |
598 |
|
break; |
599 |
|
case Expose: |
600 |
< |
redraw(e.e.x, e.e.y, e.e.width, e.e.height); |
600 |
> |
redraw(xev.xexpose.x, xev.xexpose.y, |
601 |
> |
xev.xexpose.width, xev.xexpose.height); |
602 |
|
break; |
603 |
|
case ButtonPress: |
604 |
< |
if (e.b.state & (ShiftMask|ControlMask)) |
605 |
< |
moveimage(&e.b); |
604 |
> |
if (xev.xbutton.state & (ShiftMask|ControlMask)) |
605 |
> |
moveimage(&xev.xbutton); |
606 |
|
else |
607 |
< |
getbox(&e.b); |
607 |
> |
switch (xev.xbutton.button) { |
608 |
> |
case Button1: |
609 |
> |
getbox(&xev.xbutton); |
610 |
> |
break; |
611 |
> |
case Button2: |
612 |
> |
traceray(xev.xbutton.x, xev.xbutton.y); |
613 |
> |
break; |
614 |
> |
case Button3: |
615 |
> |
trackrays(&xev.xbutton); |
616 |
> |
break; |
617 |
> |
} |
618 |
|
break; |
619 |
+ |
case ClientMessage: |
620 |
+ |
if ((xev.xclient.message_type == wmProtocolsAtom) && |
621 |
+ |
(xev.xclient.data.l[0] == closedownAtom)) |
622 |
+ |
quiterr(NULL); |
623 |
+ |
break; |
624 |
|
} |
625 |
|
} |
626 |
|
|
627 |
|
|
628 |
< |
docom(ekey) /* execute command */ |
628 |
> |
traceray(xpos, ypos) /* print requested pixel data */ |
629 |
> |
int xpos, ypos; |
630 |
> |
{ |
631 |
> |
extern char *index(); |
632 |
> |
FLOAT hv[2]; |
633 |
> |
FVECT rorg, rdir; |
634 |
> |
COLOR cval; |
635 |
> |
register char *cp; |
636 |
> |
|
637 |
> |
box.xmin = xpos; box.xsiz = 1; |
638 |
> |
box.ymin = ypos; box.ysiz = 1; |
639 |
> |
avgbox(cval); |
640 |
> |
scalecolor(cval, 1./exposure); |
641 |
> |
pix2loc(hv, &inpres, xpos-xoff, ypos-yoff); |
642 |
> |
if (!gotview || viewray(rorg, rdir, &ourview, hv[0], hv[1]) < 0) |
643 |
> |
rorg[0] = rorg[1] = rorg[2] = |
644 |
> |
rdir[0] = rdir[1] = rdir[2] = 0.; |
645 |
> |
|
646 |
> |
for (cp = tout; *cp; cp++) /* print what they asked for */ |
647 |
> |
switch (*cp) { |
648 |
> |
case 'o': /* origin */ |
649 |
> |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
650 |
> |
break; |
651 |
> |
case 'd': /* direction */ |
652 |
> |
printf("%e %e %e ", rdir[0], rdir[1], rdir[2]); |
653 |
> |
break; |
654 |
> |
case 'v': /* radiance value */ |
655 |
> |
printf("%e %e %e ", colval(cval,RED), |
656 |
> |
colval(cval,GRN), colval(cval,BLU)); |
657 |
> |
break; |
658 |
> |
case 'l': /* luminance */ |
659 |
> |
printf("%e ", luminance(cval)); |
660 |
> |
break; |
661 |
> |
case 'p': /* pixel position */ |
662 |
> |
printf("%d %d ", (int)(hv[0]*inpres.xr), |
663 |
> |
(int)(hv[1]*inpres.yr)); |
664 |
> |
break; |
665 |
> |
} |
666 |
> |
putchar('\n'); |
667 |
> |
fflush(stdout); |
668 |
> |
return(0); |
669 |
> |
} |
670 |
> |
|
671 |
> |
|
672 |
> |
docom(ekey) /* execute command */ |
673 |
|
XKeyPressedEvent *ekey; |
674 |
|
{ |
675 |
|
char buf[80]; |
677 |
|
XColor cvx; |
678 |
|
int com, n; |
679 |
|
double comp; |
680 |
< |
FVECT rorg, rdir; |
680 |
> |
FLOAT hv[2]; |
681 |
|
|
682 |
|
n = XLookupString(ekey, buf, sizeof(buf), NULL, NULL); |
683 |
|
if (n == 0) |
685 |
|
com = buf[0]; |
686 |
|
switch (com) { /* interpret command */ |
687 |
|
case 'q': |
688 |
< |
case CTRL(D): /* quit */ |
689 |
< |
quit(0); |
688 |
> |
case 'Q': |
689 |
> |
case CTRL('D'): /* quit */ |
690 |
> |
quiterr(NULL); |
691 |
|
case '\n': |
692 |
|
case '\r': |
693 |
|
case 'l': |
694 |
|
case 'c': /* value */ |
695 |
< |
if (avgbox(cval) == -1) |
695 |
> |
if (!avgbox(cval)) |
696 |
|
return(-1); |
697 |
|
switch (com) { |
698 |
|
case '\n': |
700 |
|
sprintf(buf, "%.3f", intens(cval)/exposure); |
701 |
|
break; |
702 |
|
case 'l': /* luminance */ |
703 |
< |
sprintf(buf, "%.0fn", bright(cval)*683.0/exposure); |
703 |
> |
sprintf(buf, "%.0fL", luminance(cval)/exposure); |
704 |
|
break; |
705 |
|
case 'c': /* color */ |
706 |
|
comp = pow(2.0, (double)scale); |
726 |
|
XStoreColor(thedisplay, ourras->cmap, &cvx); |
727 |
|
return(0); |
728 |
|
case 'p': /* position */ |
729 |
< |
sprintf(buf, "(%d,%d)", ekey->x-xoff, ymax-1-ekey->y+yoff); |
729 |
> |
pix2loc(hv, &inpres, ekey->x-xoff, ekey->y-yoff); |
730 |
> |
sprintf(buf, "(%d,%d)", (int)(hv[0]*inpres.xr), |
731 |
> |
(int)(hv[1]*inpres.yr)); |
732 |
|
XDrawImageString(thedisplay, wind, ourgc, ekey->x, ekey->y, |
733 |
|
buf, strlen(buf)); |
734 |
|
return(0); |
735 |
|
case 't': /* trace */ |
736 |
< |
if (!gotview) { |
737 |
< |
XBell(thedisplay, 0); |
736 |
> |
return(traceray(ekey->x, ekey->y)); |
737 |
> |
case 'a': /* auto exposure */ |
738 |
> |
if (fname == NULL) |
739 |
|
return(-1); |
740 |
< |
} |
741 |
< |
viewray(rorg, rdir, &ourview, |
742 |
< |
(ekey->x-xoff+.5)/xmax, |
743 |
< |
(ymax-1-ekey->y+yoff+.5)/ymax); |
744 |
< |
printf("%e %e %e ", rorg[0], rorg[1], rorg[2]); |
745 |
< |
printf("%e %e %e\n", rdir[0], rdir[1], rdir[2]); |
746 |
< |
fflush(stdout); |
747 |
< |
return(0); |
740 |
> |
tmflags = TM_F_CAMERA; |
741 |
> |
strcpy(buf, "auto exposure..."); |
742 |
> |
goto remap; |
743 |
> |
case 'h': /* human response */ |
744 |
> |
if (fname == NULL) |
745 |
> |
return(-1); |
746 |
> |
tmflags = TM_F_HUMAN; |
747 |
> |
strcpy(buf, "human exposure..."); |
748 |
> |
goto remap; |
749 |
|
case '=': /* adjust exposure */ |
750 |
< |
if (avgbox(cval) == -1) |
750 |
> |
case '@': /* adaptation level */ |
751 |
> |
if (!avgbox(cval)) |
752 |
|
return(-1); |
753 |
< |
n = log(.5/bright(cval))/.69315 - scale; /* truncate */ |
754 |
< |
if (n == 0) |
755 |
< |
return(0); |
756 |
< |
scale_rcolors(ourras, pow(2.0, (double)n)); |
753 |
> |
comp = bright(cval); |
754 |
> |
if (comp < 1e-20) { |
755 |
> |
XBell(thedisplay, 0); |
756 |
> |
return(-1); |
757 |
> |
} |
758 |
> |
if (com == '@') |
759 |
> |
comp = 106./exposure/ |
760 |
> |
pow(1.219+pow(comp*WHTEFFICACY/exposure,.4),2.5); |
761 |
> |
else |
762 |
> |
comp = .5/comp; |
763 |
> |
comp = log(comp)/.69315 - scale; |
764 |
> |
n = comp < 0 ? comp-.5 : comp+.5 ; /* round */ |
765 |
> |
if (tmflags != TM_F_LINEAR) |
766 |
> |
tmflags = TM_F_LINEAR; /* turn off tone mapping */ |
767 |
> |
else { |
768 |
> |
if (n == 0) /* else check if any change */ |
769 |
> |
return(0); |
770 |
> |
scale_rcolors(ourras, pow(2.0, (double)n)); |
771 |
> |
} |
772 |
|
scale += n; |
773 |
|
sprintf(buf, "%+d", scale); |
774 |
+ |
remap: |
775 |
|
XDrawImageString(thedisplay, wind, ourgc, |
776 |
|
box.xmin, box.ymin+box.ysiz, buf, strlen(buf)); |
777 |
|
XFlush(thedisplay); |
779 |
|
free_raster(ourras); |
780 |
|
getras(); |
781 |
|
/* fall through */ |
782 |
< |
case CTRL(R): /* redraw */ |
783 |
< |
case CTRL(L): |
782 |
> |
case CTRL('R'): /* redraw */ |
783 |
> |
case CTRL('L'): |
784 |
|
unmap_rcolors(ourras); |
785 |
|
XClearWindow(thedisplay, wind); |
786 |
|
map_rcolors(ourras, wind); |
787 |
|
if (fast) |
788 |
< |
make_rpixmap(ourras); |
788 |
> |
make_rpixmap(ourras, wind); |
789 |
|
redraw(0, 0, width, height); |
790 |
|
return(0); |
791 |
+ |
case 'f': /* turn on fast redraw */ |
792 |
+ |
fast = 1; |
793 |
+ |
make_rpixmap(ourras, wind); |
794 |
+ |
return(0); |
795 |
+ |
case 'F': /* turn off fast redraw */ |
796 |
+ |
fast = 0; |
797 |
+ |
free_rpixmap(ourras); |
798 |
+ |
return(0); |
799 |
+ |
case '0': /* recenter origin */ |
800 |
+ |
if (xoff == 0 & yoff == 0) |
801 |
+ |
return(0); |
802 |
+ |
xoff = yoff = 0; |
803 |
+ |
XClearWindow(thedisplay, wind); |
804 |
+ |
redraw(0, 0, width, height); |
805 |
+ |
return(0); |
806 |
|
case ' ': /* clear */ |
807 |
|
redraw(box.xmin, box.ymin, box.xsiz, box.ysiz); |
808 |
|
return(0); |
816 |
|
moveimage(ebut) /* shift the image */ |
817 |
|
XButtonPressedEvent *ebut; |
818 |
|
{ |
819 |
< |
union { |
820 |
< |
XEvent u; |
480 |
< |
XButtonReleasedEvent b; |
481 |
< |
XPointerMovedEvent m; |
482 |
< |
} e; |
483 |
< |
int nxo, nyo; |
819 |
> |
XEvent e; |
820 |
> |
int mxo, myo; |
821 |
|
|
822 |
< |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); |
823 |
< |
while (e.u.type == MotionNotify) { |
824 |
< |
nxo = xoff + e.m.x - ebut->x; |
825 |
< |
nyo = yoff + e.m.y - ebut->y; |
826 |
< |
revbox(nxo, nyo, nxo+xmax, nyo+ymax); |
827 |
< |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); |
828 |
< |
revbox(nxo, nyo, nxo+xmax, nyo+ymax); |
822 |
> |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); |
823 |
> |
while (e.type == MotionNotify) { |
824 |
> |
mxo = e.xmotion.x; |
825 |
> |
myo = e.xmotion.y; |
826 |
> |
revline(ebut->x, ebut->y, mxo, myo); |
827 |
> |
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
828 |
> |
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
829 |
> |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); |
830 |
> |
revline(ebut->x, ebut->y, mxo, myo); |
831 |
> |
revbox(xoff+mxo-ebut->x, yoff+myo-ebut->y, |
832 |
> |
xoff+mxo-ebut->x+xmax, yoff+myo-ebut->y+ymax); |
833 |
|
} |
834 |
< |
xoff += e.b.x - ebut->x; |
835 |
< |
yoff += e.b.y - ebut->y; |
834 |
> |
xoff += e.xbutton.x - ebut->x; |
835 |
> |
yoff += e.xbutton.y - ebut->y; |
836 |
|
XClearWindow(thedisplay, wind); |
837 |
|
redraw(0, 0, width, height); |
838 |
|
} |
841 |
|
getbox(ebut) /* get new box */ |
842 |
|
XButtonPressedEvent *ebut; |
843 |
|
{ |
844 |
< |
union { |
504 |
< |
XEvent u; |
505 |
< |
XButtonReleasedEvent b; |
506 |
< |
XPointerMovedEvent m; |
507 |
< |
} e; |
844 |
> |
XEvent e; |
845 |
|
|
846 |
< |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e.u); |
847 |
< |
while (e.u.type == MotionNotify) { |
848 |
< |
revbox(ebut->x, ebut->y, box.xmin = e.m.x, box.ymin = e.m.y); |
849 |
< |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e.u); |
846 |
> |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); |
847 |
> |
while (e.type == MotionNotify) { |
848 |
> |
revbox(ebut->x, ebut->y, box.xmin = e.xmotion.x, box.ymin = e.xmotion.y); |
849 |
> |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); |
850 |
|
revbox(ebut->x, ebut->y, box.xmin, box.ymin); |
851 |
|
} |
852 |
< |
box.xmin = e.b.x<0 ? 0 : (e.b.x>=width ? width-1 : e.b.x); |
853 |
< |
box.ymin = e.b.y<0 ? 0 : (e.b.y>=height ? height-1 : e.b.y); |
852 |
> |
box.xmin = e.xbutton.x<0 ? 0 : (e.xbutton.x>=width ? width-1 : e.xbutton.x); |
853 |
> |
box.ymin = e.xbutton.y<0 ? 0 : (e.xbutton.y>=height ? height-1 : e.xbutton.y); |
854 |
|
if (box.xmin > ebut->x) { |
855 |
|
box.xsiz = box.xmin - ebut->x + 1; |
856 |
|
box.xmin = ebut->x; |
866 |
|
} |
867 |
|
|
868 |
|
|
869 |
+ |
trackrays(ebut) /* trace rays as mouse moves */ |
870 |
+ |
XButtonPressedEvent *ebut; |
871 |
+ |
{ |
872 |
+ |
XEvent e; |
873 |
+ |
unsigned long lastrept; |
874 |
+ |
|
875 |
+ |
traceray(ebut->x, ebut->y); |
876 |
+ |
lastrept = ebut->time; |
877 |
+ |
XMaskEvent(thedisplay, ButtonReleaseMask|ButtonMotionMask, &e); |
878 |
+ |
while (e.type == MotionNotify) { |
879 |
+ |
if (e.xmotion.time >= lastrept + tinterv) { |
880 |
+ |
traceray(e.xmotion.x, e.xmotion.y); |
881 |
+ |
lastrept = e.xmotion.time; |
882 |
+ |
} |
883 |
+ |
XMaskEvent(thedisplay,ButtonReleaseMask|ButtonMotionMask,&e); |
884 |
+ |
} |
885 |
+ |
} |
886 |
+ |
|
887 |
+ |
|
888 |
|
revbox(x0, y0, x1, y1) /* draw box with reversed lines */ |
889 |
|
int x0, y0, x1, y1; |
890 |
|
{ |
891 |
< |
static GC mygc = 0; |
891 |
> |
revline(x0, y0, x1, y0); |
892 |
> |
revline(x0, y1, x1, y1); |
893 |
> |
revline(x0, y0, x0, y1); |
894 |
> |
revline(x1, y0, x1, y1); |
895 |
> |
} |
896 |
|
|
897 |
< |
if (mygc == 0) { |
898 |
< |
mygc = XCreateGC(thedisplay, wind, 0, 0); |
899 |
< |
XSetFunction(thedisplay, mygc, GXinvert); |
897 |
> |
|
898 |
> |
int |
899 |
> |
colavg(scn, n, cavg) |
900 |
> |
register COLR *scn; |
901 |
> |
register int n; |
902 |
> |
COLOR cavg; |
903 |
> |
{ |
904 |
> |
COLOR col; |
905 |
> |
|
906 |
> |
while (n--) { |
907 |
> |
colr_color(col, scn++); |
908 |
> |
addcolor(cavg, col); |
909 |
|
} |
910 |
< |
XDrawLine(thedisplay, wind, mygc, x0, y0, x1, y0); |
542 |
< |
XDrawLine(thedisplay, wind, mygc, x0, y1, x1, y1); |
543 |
< |
XDrawLine(thedisplay, wind, mygc, x0, y0, x0, y1); |
544 |
< |
XDrawLine(thedisplay, wind, mygc, x1, y0, x1, y1); |
545 |
< |
} /* end of revbox */ |
910 |
> |
} |
911 |
|
|
912 |
|
|
913 |
< |
avgbox(clr) /* average color over current box */ |
914 |
< |
COLOR clr; |
913 |
> |
int |
914 |
> |
avgbox(cavg) /* average color over current box */ |
915 |
> |
COLOR cavg; |
916 |
|
{ |
917 |
+ |
double d; |
918 |
+ |
register int rval; |
919 |
+ |
|
920 |
+ |
setcolor(cavg, 0., 0., 0.); |
921 |
+ |
rval = dobox(colavg, (char *)cavg); |
922 |
+ |
if (rval > 0) { |
923 |
+ |
d = 1./rval; |
924 |
+ |
scalecolor(cavg, d); |
925 |
+ |
} |
926 |
+ |
return(rval); |
927 |
+ |
} |
928 |
+ |
|
929 |
+ |
|
930 |
+ |
int |
931 |
+ |
dobox(f, p) /* run function over box */ |
932 |
+ |
int (*f)(); /* function to call for each subscan */ |
933 |
+ |
char *p; /* pointer to private data */ |
934 |
+ |
{ |
935 |
|
int left, right, top, bottom; |
936 |
|
int y; |
553 |
– |
double d; |
554 |
– |
COLOR ctmp; |
555 |
– |
register int x; |
937 |
|
|
557 |
– |
setcolor(clr, 0.0, 0.0, 0.0); |
938 |
|
left = box.xmin - xoff; |
939 |
|
right = left + box.xsiz; |
940 |
|
if (left < 0) |
942 |
|
if (right > xmax) |
943 |
|
right = xmax; |
944 |
|
if (left >= right) |
945 |
< |
return(-1); |
945 |
> |
return(0); |
946 |
|
top = box.ymin - yoff; |
947 |
|
bottom = top + box.ysiz; |
948 |
|
if (top < 0) |
950 |
|
if (bottom > ymax) |
951 |
|
bottom = ymax; |
952 |
|
if (top >= bottom) |
953 |
< |
return(-1); |
953 |
> |
return(0); |
954 |
|
for (y = top; y < bottom; y++) { |
955 |
|
if (getscan(y) == -1) |
956 |
|
return(-1); |
957 |
< |
for (x = left; x < right; x++) { |
958 |
< |
colr_color(ctmp, scanline[x]); |
959 |
< |
addcolor(clr, ctmp); |
957 |
> |
(*f)(scanline+left, right-left, p); |
958 |
> |
} |
959 |
> |
return((right-left)*(bottom-top)); |
960 |
> |
} |
961 |
> |
|
962 |
> |
|
963 |
> |
int |
964 |
> |
addfix(scn, n) /* add fixation points to histogram */ |
965 |
> |
COLR *scn; |
966 |
> |
int n; |
967 |
> |
{ |
968 |
> |
if (tmCvColrs(lscan, TM_NOCHROM, scn, n)) |
969 |
> |
goto tmerr; |
970 |
> |
if (tmAddHisto(lscan, n, FIXWEIGHT)) |
971 |
> |
goto tmerr; |
972 |
> |
return; |
973 |
> |
tmerr: |
974 |
> |
quiterr("tone mapping error"); |
975 |
> |
} |
976 |
> |
|
977 |
> |
|
978 |
> |
make_tonemap() /* initialize tone mapping */ |
979 |
> |
{ |
980 |
> |
int flags, y; |
981 |
> |
|
982 |
> |
if (tmflags != TM_F_LINEAR && fname == NULL) { |
983 |
> |
fprintf(stderr, "%s: cannot adjust tone of standard input\n", |
984 |
> |
progname); |
985 |
> |
tmflags = TM_F_LINEAR; |
986 |
> |
} |
987 |
> |
if (tmflags == TM_F_LINEAR) { /* linear with clamping */ |
988 |
> |
setcolrcor(pow, 1.0/gamcor); |
989 |
> |
return; |
990 |
> |
} |
991 |
> |
flags = tmflags; /* histogram adjustment */ |
992 |
> |
if (greyscale) flags |= TM_F_BW; |
993 |
> |
if (tmTop != NULL) { /* reuse old histogram if one */ |
994 |
> |
tmDone(tmTop); |
995 |
> |
tmTop->flags = flags; |
996 |
> |
} else { /* else initialize */ |
997 |
> |
if ((lscan = (TMbright *)malloc(xmax*sizeof(TMbright))) == NULL) |
998 |
> |
goto memerr; |
999 |
> |
if (greyscale) { |
1000 |
> |
cscan = TM_NOCHROM; |
1001 |
> |
if ((pscan = (BYTE *)malloc(sizeof(BYTE)*xmax)) == NULL) |
1002 |
> |
goto memerr; |
1003 |
> |
} else if ((pscan=cscan = (BYTE *)malloc(3*sizeof(BYTE)*xmax)) |
1004 |
> |
== NULL) |
1005 |
> |
goto memerr; |
1006 |
> |
/* initialize tm library */ |
1007 |
> |
if (tmInit(flags, stdprims, gamcor) == NULL) |
1008 |
> |
goto memerr; |
1009 |
> |
if (tmSetSpace(stdprims, WHTEFFICACY/exposure)) |
1010 |
> |
goto tmerr; |
1011 |
> |
/* compute picture histogram */ |
1012 |
> |
for (y = 0; y < ymax; y++) { |
1013 |
> |
getscan(y); |
1014 |
> |
if (tmCvColrs(lscan, TM_NOCHROM, scanline, xmax)) |
1015 |
> |
goto tmerr; |
1016 |
> |
if (tmAddHisto(lscan, xmax, 1)) |
1017 |
> |
goto tmerr; |
1018 |
|
} |
1019 |
|
} |
1020 |
< |
d = 1.0/((right-left)*(bottom-top)); |
1021 |
< |
scalecolor(clr, d); |
1022 |
< |
return(0); |
1020 |
> |
tmDup(); /* add fixations to duplicate map */ |
1021 |
> |
dobox(addfix, NULL); |
1022 |
> |
/* (re)compute tone mapping */ |
1023 |
> |
if (tmComputeMapping(gamcor, 0., 0.)) |
1024 |
> |
goto tmerr; |
1025 |
> |
return; |
1026 |
> |
memerr: |
1027 |
> |
quiterr("out of memory in make_tonemap"); |
1028 |
> |
tmerr: |
1029 |
> |
quiterr("tone mapping error"); |
1030 |
|
} |
1031 |
|
|
1032 |
|
|
1033 |
+ |
tmap_colrs(scn, len) /* apply tone mapping to scanline */ |
1034 |
+ |
register COLR *scn; |
1035 |
+ |
int len; |
1036 |
+ |
{ |
1037 |
+ |
register BYTE *ps; |
1038 |
+ |
|
1039 |
+ |
if (tmflags == TM_F_LINEAR) { |
1040 |
+ |
if (scale) |
1041 |
+ |
shiftcolrs(scn, len, scale); |
1042 |
+ |
colrs_gambs(scn, len); |
1043 |
+ |
return; |
1044 |
+ |
} |
1045 |
+ |
if (len > xmax) |
1046 |
+ |
quiterr("code error 1 in tmap_colrs"); |
1047 |
+ |
if (tmCvColrs(lscan, cscan, scn, len)) |
1048 |
+ |
goto tmerr; |
1049 |
+ |
if (tmMapPixels(pscan, lscan, cscan, len)) |
1050 |
+ |
goto tmerr; |
1051 |
+ |
ps = pscan; |
1052 |
+ |
if (greyscale) |
1053 |
+ |
while (len--) { |
1054 |
+ |
scn[0][RED] = scn[0][GRN] = scn[0][BLU] = *ps++; |
1055 |
+ |
scn[0][EXP] = COLXS; |
1056 |
+ |
scn++; |
1057 |
+ |
} |
1058 |
+ |
else |
1059 |
+ |
while (len--) { |
1060 |
+ |
scn[0][RED] = *ps++; |
1061 |
+ |
scn[0][GRN] = *ps++; |
1062 |
+ |
scn[0][BLU] = *ps++; |
1063 |
+ |
scn[0][EXP] = COLXS; |
1064 |
+ |
scn++; |
1065 |
+ |
} |
1066 |
+ |
return; |
1067 |
+ |
tmerr: |
1068 |
+ |
quiterr("tone mapping error"); |
1069 |
+ |
} |
1070 |
+ |
|
1071 |
+ |
|
1072 |
|
getmono() /* get monochrome data */ |
1073 |
|
{ |
1074 |
|
register unsigned char *dp; |
1075 |
|
register int x, err; |
1076 |
< |
int y; |
593 |
< |
rgbpixel *inline; |
1076 |
> |
int y, errp; |
1077 |
|
short *cerr; |
1078 |
|
|
1079 |
< |
if ((inline = (rgbpixel *)malloc(xmax*sizeof(rgbpixel))) == NULL |
1080 |
< |
|| (cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
598 |
< |
quit("out of memory in getmono"); |
1079 |
> |
if ((cerr = (short *)calloc(xmax,sizeof(short))) == NULL) |
1080 |
> |
quiterr("out of memory in getmono"); |
1081 |
|
dp = ourdata - 1; |
1082 |
|
for (y = 0; y < ymax; y++) { |
1083 |
< |
picreadline3(y, inline); |
1083 |
> |
getscan(y); |
1084 |
> |
add2icon(y, scanline); |
1085 |
> |
normcolrs(scanline, xmax, scale); |
1086 |
|
err = 0; |
1087 |
|
for (x = 0; x < xmax; x++) { |
1088 |
|
if (!(x&7)) |
1089 |
|
*++dp = 0; |
1090 |
< |
err += rgb_bright(&inline[x]) + cerr[x]; |
1090 |
> |
errp = err; |
1091 |
> |
err += normbright(scanline[x]) + cerr[x]; |
1092 |
|
if (err > 127) |
1093 |
|
err -= 255; |
1094 |
|
else |
1095 |
|
*dp |= 1<<(7-(x&07)); |
1096 |
< |
cerr[x] = err >>= 1; |
1096 |
> |
err /= 3; |
1097 |
> |
cerr[x] = err + errp; |
1098 |
|
} |
1099 |
|
} |
614 |
– |
free((char *)inline); |
1100 |
|
free((char *)cerr); |
1101 |
|
} |
1102 |
|
|
1103 |
|
|
1104 |
+ |
add2icon(y, scan) /* add a scanline to our icon data */ |
1105 |
+ |
int y; |
1106 |
+ |
COLR *scan; |
1107 |
+ |
{ |
1108 |
+ |
static short cerr[ICONSIZ]; |
1109 |
+ |
static int ynext; |
1110 |
+ |
static char *dp; |
1111 |
+ |
COLR clr; |
1112 |
+ |
register int err; |
1113 |
+ |
register int x, ti; |
1114 |
+ |
int errp; |
1115 |
+ |
|
1116 |
+ |
if (iconheight == 0) { /* initialize */ |
1117 |
+ |
if (xmax <= ICONSIZ && ymax <= ICONSIZ) { |
1118 |
+ |
iconwidth = xmax; |
1119 |
+ |
iconheight = ymax; |
1120 |
+ |
} else if (xmax > ymax) { |
1121 |
+ |
iconwidth = ICONSIZ; |
1122 |
+ |
iconheight = ICONSIZ*ymax/xmax; |
1123 |
+ |
if (iconheight < 1) |
1124 |
+ |
iconheight = 1; |
1125 |
+ |
} else { |
1126 |
+ |
iconwidth = ICONSIZ*xmax/ymax; |
1127 |
+ |
if (iconwidth < 1) |
1128 |
+ |
iconwidth = 1; |
1129 |
+ |
iconheight = ICONSIZ; |
1130 |
+ |
} |
1131 |
+ |
ynext = 0; |
1132 |
+ |
dp = icondata - 1; |
1133 |
+ |
} |
1134 |
+ |
if (y < ynext*ymax/iconheight) /* skip this one */ |
1135 |
+ |
return; |
1136 |
+ |
err = 0; |
1137 |
+ |
for (x = 0; x < iconwidth; x++) { |
1138 |
+ |
if (!(x&7)) |
1139 |
+ |
*++dp = 0; |
1140 |
+ |
errp = err; |
1141 |
+ |
ti = x*xmax/iconwidth; |
1142 |
+ |
copycolr(clr, scan[ti]); |
1143 |
+ |
normcolrs(clr, 1, scale); |
1144 |
+ |
err += normbright(clr) + cerr[x]; |
1145 |
+ |
if (err > 127) |
1146 |
+ |
err -= 255; |
1147 |
+ |
else |
1148 |
+ |
*dp |= 1<<(x&07); |
1149 |
+ |
err /= 3; |
1150 |
+ |
cerr[x] = err + errp; |
1151 |
+ |
} |
1152 |
+ |
ynext++; |
1153 |
+ |
} |
1154 |
+ |
|
1155 |
+ |
|
1156 |
|
getfull() /* get full (24-bit) data */ |
1157 |
|
{ |
1158 |
|
int y; |
1159 |
+ |
register unsigned int4 *dp; |
1160 |
+ |
register int x; |
1161 |
+ |
/* initialize tone mapping */ |
1162 |
+ |
make_tonemap(); |
1163 |
+ |
/* read and convert file */ |
1164 |
+ |
dp = (unsigned int4 *)ourdata; |
1165 |
+ |
for (y = 0; y < ymax; y++) { |
1166 |
+ |
getscan(y); |
1167 |
+ |
add2icon(y, scanline); |
1168 |
+ |
tmap_colrs(scanline, xmax); |
1169 |
+ |
if (ourras->image->blue_mask & 1) |
1170 |
+ |
for (x = 0; x < xmax; x++) |
1171 |
+ |
*dp++ = (unsigned int4)scanline[x][RED] << 16 | |
1172 |
+ |
(unsigned int4)scanline[x][GRN] << 8 | |
1173 |
+ |
(unsigned int4)scanline[x][BLU] ; |
1174 |
+ |
else |
1175 |
+ |
for (x = 0; x < xmax; x++) |
1176 |
+ |
*dp++ = (unsigned int4)scanline[x][RED] | |
1177 |
+ |
(unsigned int4)scanline[x][GRN] << 8 | |
1178 |
+ |
(unsigned int4)scanline[x][BLU] << 16 ; |
1179 |
+ |
} |
1180 |
+ |
} |
1181 |
|
|
1182 |
< |
for (y = 0; y < ymax; y++) |
1183 |
< |
picreadline3(y, (rgbpixel *)(ourdata+y*xmax*3)); |
1182 |
> |
|
1183 |
> |
getgrey() /* get greyscale data */ |
1184 |
> |
{ |
1185 |
> |
int y; |
1186 |
> |
register unsigned char *dp; |
1187 |
> |
register int x; |
1188 |
> |
/* initialize tone mapping */ |
1189 |
> |
make_tonemap(); |
1190 |
> |
/* read and convert file */ |
1191 |
> |
dp = ourdata; |
1192 |
> |
for (y = 0; y < ymax; y++) { |
1193 |
> |
getscan(y); |
1194 |
> |
add2icon(y, scanline); |
1195 |
> |
tmap_colrs(scanline, xmax); |
1196 |
> |
if (maxcolors < 256) |
1197 |
> |
for (x = 0; x < xmax; x++) |
1198 |
> |
*dp++ = ((int4)scanline[x][GRN] * |
1199 |
> |
maxcolors + maxcolors/2) >> 8; |
1200 |
> |
else |
1201 |
> |
for (x = 0; x < xmax; x++) |
1202 |
> |
*dp++ = scanline[x][GRN]; |
1203 |
> |
} |
1204 |
> |
for (x = 0; x < maxcolors; x++) |
1205 |
> |
clrtab[x][RED] = clrtab[x][GRN] = |
1206 |
> |
clrtab[x][BLU] = ((int4)x*256 + 128)/maxcolors; |
1207 |
|
} |
1208 |
|
|
1209 |
|
|
1210 |
+ |
getmapped() /* get color-mapped data */ |
1211 |
+ |
{ |
1212 |
+ |
int y; |
1213 |
+ |
/* make sure we can do it first */ |
1214 |
+ |
if (fname == NULL) |
1215 |
+ |
quiterr("cannot map colors from standard input"); |
1216 |
+ |
/* initialize tone mapping */ |
1217 |
+ |
make_tonemap(); |
1218 |
+ |
/* make histogram */ |
1219 |
+ |
if (new_histo((int4)xmax*ymax) == -1) |
1220 |
+ |
quiterr("cannot initialize histogram"); |
1221 |
+ |
for (y = 0; y < ymax; y++) { |
1222 |
+ |
if (getscan(y) < 0) |
1223 |
+ |
break; |
1224 |
+ |
add2icon(y, scanline); |
1225 |
+ |
tmap_colrs(scanline, xmax); |
1226 |
+ |
cnt_colrs(scanline, xmax); |
1227 |
+ |
} |
1228 |
+ |
/* map pixels */ |
1229 |
+ |
if (!new_clrtab(maxcolors)) |
1230 |
+ |
quiterr("cannot create color map"); |
1231 |
+ |
for (y = 0; y < ymax; y++) { |
1232 |
+ |
getscan(y); |
1233 |
+ |
tmap_colrs(scanline, xmax); |
1234 |
+ |
if (dither) |
1235 |
+ |
dith_colrs(ourdata+y*xmax, scanline, xmax); |
1236 |
+ |
else |
1237 |
+ |
map_colrs(ourdata+y*xmax, scanline, xmax); |
1238 |
+ |
} |
1239 |
+ |
} |
1240 |
+ |
|
1241 |
+ |
|
1242 |
|
scale_rcolors(xr, sf) /* scale color map */ |
1243 |
|
register XRASTER *xr; |
1244 |
|
double sf; |
1270 |
|
getscan(y) |
1271 |
|
int y; |
1272 |
|
{ |
1273 |
+ |
static int trunced = -1; /* truncated file? */ |
1274 |
+ |
skipit: |
1275 |
+ |
if (trunced >= 0 && y >= trunced) { |
1276 |
+ |
bzero(scanline, xmax*sizeof(COLR)); |
1277 |
+ |
return(-1); |
1278 |
+ |
} |
1279 |
|
if (y != cury) { |
1280 |
|
if (scanpos == NULL || scanpos[y] == -1) |
1281 |
|
return(-1); |
1282 |
|
if (fseek(fin, scanpos[y], 0) == -1) |
1283 |
< |
quit("fseek error"); |
1283 |
> |
quiterr("fseek error"); |
1284 |
|
cury = y; |
1285 |
< |
} else if (scanpos != NULL) |
1285 |
> |
} else if (scanpos != NULL && scanpos[y] == -1) |
1286 |
|
scanpos[y] = ftell(fin); |
1287 |
|
|
1288 |
< |
if (freadcolrs(scanline, xmax, fin) < 0) |
1289 |
< |
quiterr("read error"); |
1290 |
< |
|
1288 |
> |
if (freadcolrs(scanline, xmax, fin) < 0) { |
1289 |
> |
fprintf(stderr, "%s: %s: unfinished picture\n", |
1290 |
> |
progname, fname==NULL?"<stdin>":fname); |
1291 |
> |
trunced = y; |
1292 |
> |
goto skipit; |
1293 |
> |
} |
1294 |
|
cury++; |
1295 |
|
return(0); |
673 |
– |
} |
674 |
– |
|
675 |
– |
|
676 |
– |
picreadline3(y, l3) /* read in 3-byte scanline */ |
677 |
– |
int y; |
678 |
– |
register rgbpixel *l3; |
679 |
– |
{ |
680 |
– |
register int i; |
681 |
– |
/* read scanline */ |
682 |
– |
if (getscan(y) < 0) |
683 |
– |
quiterr("cannot seek for picreadline"); |
684 |
– |
/* convert scanline */ |
685 |
– |
normcolrs(scanline, xmax, scale); |
686 |
– |
for (i = 0; i < xmax; i++) { |
687 |
– |
l3[i].r = scanline[i][RED]; |
688 |
– |
l3[i].g = scanline[i][GRN]; |
689 |
– |
l3[i].b = scanline[i][BLU]; |
690 |
– |
} |
691 |
– |
} |
692 |
– |
|
693 |
– |
|
694 |
– |
picwriteline(y, l) /* add 8-bit scanline to image */ |
695 |
– |
int y; |
696 |
– |
pixel *l; |
697 |
– |
{ |
698 |
– |
bcopy((char *)l, (char *)ourdata+y*xmax, xmax); |
699 |
– |
} |
700 |
– |
|
701 |
– |
|
702 |
– |
picreadcm(map) /* do gamma correction */ |
703 |
– |
colormap map; |
704 |
– |
{ |
705 |
– |
extern double pow(); |
706 |
– |
register int i, val; |
707 |
– |
|
708 |
– |
for (i = 0; i < 256; i++) { |
709 |
– |
val = pow(i/256.0, 1.0/gamcor) * 256.0; |
710 |
– |
map[0][i] = map[1][i] = map[2][i] = val; |
711 |
– |
} |
712 |
– |
} |
713 |
– |
|
714 |
– |
|
715 |
– |
picwritecm(map) /* handled elsewhere */ |
716 |
– |
colormap map; |
717 |
– |
{ |
718 |
– |
#ifdef DEBUG |
719 |
– |
register int i; |
720 |
– |
|
721 |
– |
for (i = 0; i < 256; i++) |
722 |
– |
printf("%d %d %d\n", map[0][i],map[1][i],map[2][i]); |
723 |
– |
#endif |
1296 |
|
} |