20 |
|
|
21 |
|
#include <ctype.h> |
22 |
|
|
23 |
< |
VIEW ourview = STDVIEW(470); /* viewing parameters */ |
23 |
> |
VIEW ourview = STDVIEW; /* viewing parameters */ |
24 |
> |
int hresolu, vresolu; /* image resolution */ |
25 |
|
|
26 |
|
int psample = 8; /* pixel sample size */ |
27 |
|
double maxdiff = .15; /* max. sample difference */ |
45 |
|
int ambincl = -1; /* include == 1, exclude == 0 */ |
46 |
|
|
47 |
|
int greyscale = 0; /* map colors to brightness? */ |
48 |
< |
char *devname = "X"; /* output device name */ |
48 |
> |
char *devname = dev_default; /* output device name */ |
49 |
|
|
50 |
|
struct driver *dev = NULL; /* driver functions */ |
51 |
|
|
55 |
|
RECT pframe; /* current frame boundaries */ |
56 |
|
int pdepth; /* image depth in current frame */ |
57 |
|
|
58 |
+ |
static char *reserve_mem = NULL; /* pre-allocated reserve memory */ |
59 |
+ |
|
60 |
+ |
#define RESERVE_AMT 8192 /* amount of memory to reserve */ |
61 |
+ |
|
62 |
|
#define CTRL(c) ('c'-'@') |
63 |
|
|
64 |
|
|
116 |
|
char buf[32]; |
117 |
|
|
118 |
|
devopen(devname); /* open device */ |
119 |
< |
newimage(); /* set up image */ |
119 |
> |
newimage(); /* start image (calls fillreserves) */ |
120 |
|
|
121 |
|
for ( ; ; ) { /* quit in command() */ |
122 |
< |
while (ourview.hresolu <= 1<<pdepth && |
118 |
< |
ourview.vresolu <= 1<<pdepth) |
122 |
> |
while (hresolu <= 1<<pdepth && vresolu <= 1<<pdepth) |
123 |
|
command("done: "); |
124 |
< |
|
125 |
< |
if (ourview.hresolu <= psample<<pdepth && |
126 |
< |
ourview.vresolu <= psample<<pdepth) { |
124 |
> |
while (reserve_mem == NULL) |
125 |
> |
command("out of memory: "); |
126 |
> |
errno = 0; |
127 |
> |
if (hresolu <= psample<<pdepth && vresolu <= psample<<pdepth) { |
128 |
|
sprintf(buf, "%d sampling...\n", 1<<pdepth); |
129 |
|
(*dev->comout)(buf); |
130 |
|
rsample(); |
131 |
|
} else { |
132 |
|
sprintf(buf, "%d refining...\n", 1<<pdepth); |
133 |
|
(*dev->comout)(buf); |
134 |
< |
refine(&ptrunk, 0, 0, ourview.hresolu, |
130 |
< |
ourview.vresolu, pdepth+1); |
134 |
> |
refine(&ptrunk, 0, 0, hresolu, vresolu, pdepth+1); |
135 |
|
} |
136 |
< |
if (dev->inpready) |
136 |
> |
if (errno == ENOMEM) /* ran out of memory */ |
137 |
> |
freereserves(); |
138 |
> |
else if (dev->inpready) /* noticed some input */ |
139 |
|
command(": "); |
140 |
< |
else |
140 |
> |
else /* finished this depth */ |
141 |
|
pdepth++; |
142 |
|
} |
143 |
|
} |
144 |
|
|
145 |
|
|
146 |
+ |
fillreserves() /* fill memory reserves */ |
147 |
+ |
{ |
148 |
+ |
if (reserve_mem != NULL) |
149 |
+ |
return; |
150 |
+ |
reserve_mem = malloc(RESERVE_AMT); |
151 |
+ |
} |
152 |
+ |
|
153 |
+ |
|
154 |
+ |
freereserves() /* free memory reserves */ |
155 |
+ |
{ |
156 |
+ |
if (reserve_mem == NULL) |
157 |
+ |
return; |
158 |
+ |
free(reserve_mem); |
159 |
+ |
reserve_mem = NULL; |
160 |
+ |
} |
161 |
+ |
|
162 |
+ |
|
163 |
|
command(prompt) /* get/execute command */ |
164 |
|
char *prompt; |
165 |
|
{ |
168 |
|
char inpbuf[256]; |
169 |
|
char *args; |
170 |
|
again: |
171 |
< |
(*dev->comout)(prompt); /* get command + arguments */ |
149 |
< |
(*dev->comin)(inpbuf); |
171 |
> |
(*dev->comin)(inpbuf, prompt); /* get command + arguments */ |
172 |
|
for (args = inpbuf; *args && *args != ' '; args++) |
173 |
|
; |
174 |
|
if (*args) *args++ = '\0'; |
220 |
|
goto commerr; |
221 |
|
getmove(args); |
222 |
|
break; |
223 |
< |
case 'r': /* rotate camera */ |
224 |
< |
if (badcom("rotate")) |
225 |
< |
goto commerr; |
223 |
> |
case 'r': /* rotate/repaint */ |
224 |
> |
if (badcom("rotate")) { |
225 |
> |
if (badcom("repaint")) |
226 |
> |
goto commerr; |
227 |
> |
getrepaint(args); |
228 |
> |
break; |
229 |
> |
} |
230 |
|
getrotate(args); |
231 |
|
break; |
232 |
|
case 'p': /* pivot view */ |
288 |
|
* difference, we subsample the super-pixels. The testing process |
289 |
|
* includes initialization of the next row. |
290 |
|
*/ |
291 |
< |
xsiz = (((pframe.r-pframe.l)<<pdepth)+ourview.hresolu-1) / |
292 |
< |
ourview.hresolu; |
267 |
< |
ysiz = (((pframe.u-pframe.d)<<pdepth)+ourview.vresolu-1) / |
268 |
< |
ourview.vresolu; |
291 |
> |
xsiz = (((pframe.r-pframe.l)<<pdepth)+hresolu-1) / hresolu; |
292 |
> |
ysiz = (((pframe.u-pframe.d)<<pdepth)+vresolu-1) / vresolu; |
293 |
|
rl = (RECT *)malloc(xsiz*sizeof(RECT)); |
294 |
+ |
if (rl == NULL) |
295 |
+ |
return; |
296 |
|
pl = (PNODE **)malloc(xsiz*sizeof(PNODE *)); |
297 |
< |
if (rl == NULL || pl == NULL) |
298 |
< |
error(SYSTEM, "out of memory in rsample"); |
297 |
> |
if (pl == NULL) |
298 |
> |
return; |
299 |
|
/* |
300 |
|
* Initialize the bottom row. |
301 |
|
*/ |
302 |
|
rl[0].l = rl[0].d = 0; |
303 |
< |
rl[0].r = ourview.hresolu; rl[0].u = ourview.vresolu; |
303 |
> |
rl[0].r = hresolu; rl[0].u = vresolu; |
304 |
|
pl[0] = findrect(pframe.l, pframe.d, &ptrunk, rl, pdepth); |
305 |
|
for (x = 1; x < xsiz; x++) { |
306 |
|
rl[x].l = rl[x].d = 0; |
307 |
< |
rl[x].r = ourview.hresolu; rl[x].u = ourview.vresolu; |
308 |
< |
pl[x] = findrect(pframe.l+((x*ourview.hresolu)>>pdepth), |
307 |
> |
rl[x].r = hresolu; rl[x].u = vresolu; |
308 |
> |
pl[x] = findrect(pframe.l+((x*hresolu)>>pdepth), |
309 |
|
pframe.d, &ptrunk, rl+x, pdepth); |
310 |
|
} |
311 |
|
/* sample the image */ |
333 |
|
* Find super-pixel at this position in next row. |
334 |
|
*/ |
335 |
|
r.l = r.d = 0; |
336 |
< |
r.r = ourview.hresolu; r.u = ourview.vresolu; |
337 |
< |
p = findrect(pframe.l+((x*ourview.hresolu)>>pdepth), |
338 |
< |
pframe.d+(((y+1)*ourview.vresolu)>>pdepth), |
336 |
> |
r.r = hresolu; r.u = vresolu; |
337 |
> |
p = findrect(pframe.l+((x*hresolu)>>pdepth), |
338 |
> |
pframe.d+(((y+1)*vresolu)>>pdepth), |
339 |
|
&ptrunk, &r, pdepth); |
340 |
|
/* |
341 |
|
* Test super-pixel in next row. |
382 |
|
if (p->kid == NULL) { /* subdivide */ |
383 |
|
|
384 |
|
if ((p->kid = newptree()) == NULL) |
385 |
< |
error(SYSTEM, "out of memory in refine"); |
385 |
> |
return(growth); |
386 |
|
/* |
387 |
|
* The following paint order can leave a black pixel |
388 |
|
* when redraw() is called in (*dev->paintr)(). |