| 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 (hresolu <= 1<<pdepth && |
| 123 |
< |
vresolu <= 1<<pdepth) |
| 122 |
> |
while (hresolu <= 1<<pdepth && vresolu <= 1<<pdepth) |
| 123 |
|
command("done: "); |
| 124 |
< |
|
| 125 |
< |
if (hresolu <= psample<<pdepth && |
| 126 |
< |
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(); |
| 133 |
|
(*dev->comout)(buf); |
| 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 |
< |
memreserve() /* fill memory reserves */ |
| 146 |
> |
fillreserves() /* fill memory reserves */ |
| 147 |
|
{ |
| 148 |
|
if (reserve_mem != NULL) |
| 149 |
< |
return; /* got some already */ |
| 149 |
> |
return; |
| 150 |
|
reserve_mem = malloc(RESERVE_AMT); |
| 151 |
|
} |
| 152 |
|
|
| 153 |
|
|
| 154 |
< |
memerror(detail) /* try and rescue a memory error */ |
| 153 |
< |
char *detail; |
| 154 |
> |
freereserves() /* free memory reserves */ |
| 155 |
|
{ |
| 156 |
< |
if (reserve_mem == NULL) { |
| 157 |
< |
sprintf(errmsg, "out of memory %s", detail); |
| 157 |
< |
error(SYSTEM, errmsg); |
| 158 |
< |
} |
| 156 |
> |
if (reserve_mem == NULL) |
| 157 |
> |
return; |
| 158 |
|
free(reserve_mem); |
| 159 |
|
reserve_mem = NULL; |
| 161 |
– |
for ( ; ; ) |
| 162 |
– |
command("out of memory: "); |
| 160 |
|
} |
| 161 |
|
|
| 162 |
|
|
| 292 |
|
ysiz = (((pframe.u-pframe.d)<<pdepth)+vresolu-1) / vresolu; |
| 293 |
|
rl = (RECT *)malloc(xsiz*sizeof(RECT)); |
| 294 |
|
if (rl == NULL) |
| 295 |
< |
memerror("in rsample"); |
| 295 |
> |
return; |
| 296 |
|
pl = (PNODE **)malloc(xsiz*sizeof(PNODE *)); |
| 297 |
|
if (pl == NULL) |
| 298 |
< |
memerror("in rsample"); |
| 298 |
> |
return; |
| 299 |
|
/* |
| 300 |
|
* Initialize the bottom row. |
| 301 |
|
*/ |
| 382 |
|
if (p->kid == NULL) { /* subdivide */ |
| 383 |
|
|
| 384 |
|
if ((p->kid = newptree()) == NULL) |
| 385 |
< |
memerror("in refine"); |
| 385 |
> |
return(growth); |
| 386 |
|
/* |
| 387 |
|
* The following paint order can leave a black pixel |
| 388 |
|
* when redraw() is called in (*dev->paintr)(). |
