24 |
|
|
25 |
|
#define GAMMA 2.2 /* exponent for color correction */ |
26 |
|
|
27 |
< |
#define MINWIDTH (4*COMCW) /* minimum graphics window width */ |
28 |
< |
#define MINHEIGHT 16 /* minimum graphics window height */ |
27 |
> |
#define MINWIDTH (32*COMCW) /* minimum graphics window width */ |
28 |
> |
#define MINHEIGHT MINWIDTH /* minimum graphics window height */ |
29 |
|
|
30 |
|
#define BORWIDTH 5 /* border width */ |
31 |
|
#define COMHEIGHT (COMLH*COMCH) /* command line height (pixels) */ |
49 |
|
|
50 |
|
static Display *ourdisplay = NULL; /* our display */ |
51 |
|
|
52 |
+ |
static Visual *ourvisual; /* our visual structure */ |
53 |
+ |
|
54 |
|
static Window gwind = 0; /* our graphics window */ |
55 |
|
|
56 |
|
static Cursor pickcursor = 0; /* cursor used for picking */ |
65 |
|
|
66 |
|
static GC ourgc = 0; /* our graphics context for drawing */ |
67 |
|
|
68 |
< |
static Colormap ourmap; /* our color map */ |
68 |
> |
static Colormap ourmap = 0; /* our color map */ |
69 |
|
|
70 |
|
extern char *malloc(); |
71 |
|
|
82 |
|
x11_init(name, id) /* initialize driver */ |
83 |
|
char *name, *id; |
84 |
|
{ |
85 |
+ |
int nplanes; |
86 |
+ |
XVisualInfo ourvinfo; |
87 |
|
XWMHints ourxwmhints; |
84 |
– |
Pixmap bmCursorSrc, bmCursorMsk; |
88 |
|
|
89 |
|
ourdisplay = XOpenDisplay(NULL); |
90 |
|
if (ourdisplay == NULL) { |
91 |
|
stderr_v("cannot open X-windows; DISPLAY variable set?\n"); |
92 |
|
return(NULL); |
93 |
|
} |
94 |
< |
if (DisplayPlanes(ourdisplay, ourscreen) < 4) { |
94 |
> |
nplanes = DisplayPlanes(ourdisplay, ourscreen); |
95 |
> |
if (nplanes < 4) { |
96 |
|
stderr_v("not enough colors\n"); |
97 |
|
return(NULL); |
98 |
+ |
} else if (nplanes <= 12) { |
99 |
+ |
if (!XMatchVisualInfo(ourdisplay,ourscreen, |
100 |
+ |
nplanes,PseudoColor,&ourvinfo)) { |
101 |
+ |
stderr_v("PseudoColor not supported\n"); |
102 |
+ |
return(NULL); |
103 |
+ |
} |
104 |
+ |
} else if (!XMatchVisualInfo(ourdisplay,ourscreen, |
105 |
+ |
nplanes,TrueColor,&ourvinfo)) { |
106 |
+ |
stderr_v("TrueColor not supported\n"); |
107 |
+ |
return(NULL); |
108 |
|
} |
109 |
< |
ourmap = DefaultColormap(ourdisplay,ourscreen); |
110 |
< |
make_gmap(GAMMA); /* make color map */ |
109 |
> |
ourvisual = ourvinfo.visual; |
110 |
> |
make_gmap(GAMMA); |
111 |
|
/* create a cursor */ |
112 |
|
pickcursor = XCreateFontCursor (ourdisplay, XC_diamond_cross); |
113 |
|
/* open window */ |
151 |
|
xt_close(comline); |
152 |
|
comline = NULL; |
153 |
|
} |
140 |
– |
if (gwind != 0) { |
141 |
– |
XFreeGC(ourdisplay, ourgc); |
142 |
– |
XDestroyWindow(ourdisplay, gwind); |
143 |
– |
gwind = 0; |
144 |
– |
ourgc = 0; |
145 |
– |
} |
146 |
– |
XFreeCursor(ourdisplay, pickcursor); |
154 |
|
freepixels(); |
155 |
+ |
XFreeGC(ourdisplay, ourgc); |
156 |
+ |
XDestroyWindow(ourdisplay, gwind); |
157 |
+ |
gwind = 0; |
158 |
+ |
ourgc = 0; |
159 |
+ |
XFreeCursor(ourdisplay, pickcursor); |
160 |
|
XCloseDisplay(ourdisplay); |
161 |
|
ourdisplay = NULL; |
162 |
|
} |
181 |
|
XSelectInput(ourdisplay, comline->w, ExposureMask); |
182 |
|
gwidth = xres; |
183 |
|
gheight = yres; |
184 |
< |
XSync(ourdisplay, 1); /* discard input */ |
184 |
> |
XFlush(ourdisplay); |
185 |
|
sleep(2); /* wait for window manager */ |
186 |
+ |
XSync(ourdisplay, 1); /* discard input */ |
187 |
|
} |
188 |
|
XClearWindow(ourdisplay, gwind); |
189 |
< |
/* reinitialize color table */ |
190 |
< |
if (getpixels() == 0) |
191 |
< |
stderr_v("cannot allocate colors\n"); |
192 |
< |
else |
193 |
< |
new_ctab(ncolors); |
189 |
> |
if (ourvisual->class == PseudoColor) /* reinitialize color table */ |
190 |
> |
if (getpixels() == 0) |
191 |
> |
stderr_v("cannot allocate colors\n"); |
192 |
> |
else |
193 |
> |
new_ctab(ncolors); |
194 |
|
|
195 |
|
XSelectInput(ourdisplay, gwind, |
196 |
|
StructureNotifyMask|ExposureMask|KeyPressMask|ButtonPressMask); |
203 |
|
int xmin, ymin, xmax, ymax; |
204 |
|
{ |
205 |
|
extern int xnewcolr(); /* pixel assignment routine */ |
206 |
+ |
extern unsigned long true_pixel(); |
207 |
+ |
unsigned long pixel; |
208 |
|
|
209 |
< |
if (ncolors > 0) { |
210 |
< |
XSetForeground(ourdisplay, ourgc, |
211 |
< |
pixval[get_pixel(col, xnewcolr)]); |
212 |
< |
XFillRectangle(ourdisplay, gwind, |
213 |
< |
ourgc, xmin, gheight-ymax, xmax-xmin, ymax-ymin); |
214 |
< |
} |
209 |
> |
if (ncolors > 0) |
210 |
> |
pixel = pixval[get_pixel(col, xnewcolr)]; |
211 |
> |
else if (ourvisual->class == TrueColor) |
212 |
> |
pixel = true_pixel(col); |
213 |
> |
else |
214 |
> |
return; |
215 |
> |
XSetForeground(ourdisplay, ourgc, pixel); |
216 |
> |
XFillRectangle(ourdisplay, gwind, |
217 |
> |
ourgc, xmin, gheight-ymax, xmax-xmin, ymax-ymin); |
218 |
|
} |
219 |
|
|
220 |
|
|
221 |
|
static |
222 |
|
x11_flush() /* flush output */ |
223 |
|
{ |
224 |
< |
if (ncolors <= 0) /* output necessary for death */ |
224 |
> |
if (ncolors <= 0 && ourvisual->class != TrueColor) /* dummy */ |
225 |
|
XFillRectangle(ourdisplay, gwind, ourgc, 0, 0, 1 ,1); |
226 |
|
while (XPending(ourdisplay) > 0) |
227 |
|
getevent(); |
251 |
|
{ |
252 |
|
if (comline != NULL) |
253 |
|
xt_puts(out, comline); |
236 |
– |
XFlush(ourdisplay); |
254 |
|
} |
255 |
|
|
256 |
|
|
314 |
|
static int |
315 |
|
getpixels() /* get the color map */ |
316 |
|
{ |
300 |
– |
Visual *ourvis = DefaultVisual(ourdisplay,ourscreen); |
301 |
– |
|
317 |
|
if (ncolors > 0) |
318 |
|
return(ncolors); |
319 |
< |
for (ncolors=(ourvis->map_entries)-3; ncolors>12; ncolors=ncolors*.937){ |
319 |
> |
if (ourvisual == DefaultVisual(ourdisplay,ourscreen)) { |
320 |
> |
ourmap = DefaultColormap(ourdisplay,ourscreen); |
321 |
> |
goto loop; |
322 |
> |
} |
323 |
> |
newmap: |
324 |
> |
ourmap = XCreateColormap(ourdisplay,gwind,ourvisual,AllocNone); |
325 |
> |
loop: |
326 |
> |
for (ncolors = ourvisual->map_entries; |
327 |
> |
ncolors > ourvisual->map_entries/3; |
328 |
> |
ncolors = ncolors*.937) { |
329 |
|
pixval = (int *)malloc(ncolors*sizeof(int)); |
330 |
|
if (pixval == NULL) |
331 |
< |
break; |
331 |
> |
return(ncolors = 0); |
332 |
|
if (XAllocColorCells(ourdisplay,ourmap,0,NULL,0, |
333 |
|
pixval,ncolors) != 0) |
334 |
< |
return(ncolors); |
334 |
> |
break; |
335 |
|
free((char *)pixval); |
336 |
+ |
pixval = NULL; |
337 |
|
} |
338 |
< |
return(ncolors = 0); |
338 |
> |
if (pixval == NULL) { |
339 |
> |
if (ourmap == DefaultColormap(ourdisplay,ourscreen)) |
340 |
> |
goto newmap; /* try it with our map */ |
341 |
> |
else |
342 |
> |
return(ncolors = 0); /* failed */ |
343 |
> |
} |
344 |
> |
if (ourmap != DefaultColormap(ourdisplay,ourscreen)) { |
345 |
> |
XColor thiscolor; |
346 |
> |
register int i, j; |
347 |
> |
/* reset black and white */ |
348 |
> |
for (i = 0; i < ncolors; i++) { |
349 |
> |
if (pixval[i] != ourblack && pixval[i] != ourwhite) |
350 |
> |
continue; |
351 |
> |
thiscolor.pixel = pixval[i]; |
352 |
> |
thiscolor.flags = DoRed|DoGreen|DoBlue; |
353 |
> |
XQueryColor(ourdisplay, |
354 |
> |
DefaultColormap(ourdisplay,ourscreen), |
355 |
> |
&thiscolor); |
356 |
> |
XStoreColor(ourdisplay, ourmap, &thiscolor); |
357 |
> |
for (j = i; j+1 < ncolors; j++) |
358 |
> |
pixval[j] = pixval[j+1]; |
359 |
> |
ncolors--; |
360 |
> |
i--; |
361 |
> |
} |
362 |
> |
} |
363 |
> |
XSetWindowColormap(ourdisplay, gwind, ourmap); |
364 |
> |
return(ncolors); |
365 |
|
} |
366 |
|
|
367 |
|
|
372 |
|
return; |
373 |
|
XFreeColors(ourdisplay,ourmap,pixval,ncolors,0L); |
374 |
|
ncolors = 0; |
375 |
+ |
if (ourmap != DefaultColormap(ourdisplay,ourscreen)) |
376 |
+ |
XFreeColormap(ourdisplay, ourmap); |
377 |
+ |
ourmap = 0; |
378 |
|
} |
379 |
|
|
380 |
|
|
381 |
+ |
static unsigned long |
382 |
+ |
true_pixel(col) /* return true pixel value for color */ |
383 |
+ |
COLOR col; |
384 |
+ |
{ |
385 |
+ |
unsigned long rval; |
386 |
+ |
BYTE rgb[3]; |
387 |
+ |
|
388 |
+ |
map_color(rgb, col); |
389 |
+ |
rval = ourvisual->red_mask*rgb[RED]/255 & ourvisual->red_mask; |
390 |
+ |
rval |= ourvisual->green_mask*rgb[GRN]/255 & ourvisual->green_mask; |
391 |
+ |
rval |= ourvisual->blue_mask*rgb[BLU]/255 & ourvisual->blue_mask; |
392 |
+ |
return(rval); |
393 |
+ |
} |
394 |
+ |
|
395 |
+ |
|
396 |
|
static int |
397 |
|
x11_getc() /* get a command character */ |
398 |
|
{ |
417 |
|
freepixels(); |
418 |
|
break; |
419 |
|
case MapNotify: |
420 |
< |
if (getpixels() == 0) |
421 |
< |
stderr_v("Cannot allocate colors\n"); |
422 |
< |
else |
423 |
< |
new_ctab(ncolors); |
420 |
> |
if (ourvisual->class == PseudoColor) |
421 |
> |
if (getpixels() == 0) |
422 |
> |
stderr_v("Cannot allocate colors\n"); |
423 |
> |
else |
424 |
> |
new_ctab(ncolors); |
425 |
|
break; |
426 |
|
case Expose: |
427 |
|
fixwindow(levptr(XExposeEvent)); |
439 |
|
getkey(ekey) /* get input key */ |
440 |
|
register XKeyPressedEvent *ekey; |
441 |
|
{ |
442 |
< |
c_last += XLookupString(ekey, c_queue+c_last, sizeof(c_queue)-c_last, |
442 |
> |
register int n; |
443 |
> |
|
444 |
> |
n = XLookupString(ekey, c_queue+c_last, sizeof(c_queue)-c_last, |
445 |
|
NULL, NULL); |
446 |
< |
x11_driver.inpready = c_last-c_first; |
446 |
> |
c_last += n; |
447 |
> |
x11_driver.inpready += n; |
448 |
|
} |
449 |
|
|
450 |
|
|