PostGIS 3.0.6dev-r@@SVN_REVISION@@
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◆ rt_raster_wkb_size()

static uint32_t rt_raster_wkb_size ( rt_raster  raster,
int  outasin 
)
static

Definition at line 441 of file rt_wkb.c.

441 {
442 uint32_t size = RT_WKB_HDR_SZ;
443 uint16_t i = 0;
444
445 assert(NULL != raster);
446
447 RASTER_DEBUGF(3, "rt_raster_wkb_size: computing size for %d bands",
448 raster->numBands);
449
450 for (i = 0; i < raster->numBands; ++i) {
451 rt_band band = raster->bands[i];
452 rt_pixtype pixtype = band->pixtype;
453 int pixbytes = rt_pixtype_size(pixtype);
454
455 RASTER_DEBUGF(3, "rt_raster_wkb_size: adding size of band %d", i);
456
457 if (pixbytes < 1) {
458 rterror("rt_raster_wkb_size: Corrupted band: unknown pixtype");
459 return 0;
460 }
461
462 /* Add space for band type */
463 size += 1;
464
465 /* Add space for nodata value */
466 size += pixbytes;
467
468 if (!outasin && band->offline) {
469 /* Add space for band number */
470 size += 1;
471
472 /* Add space for null-terminated path */
473 size += strlen(band->data.offline.path) + 1;
474 }
475 else {
476 /* Add space for actual data */
477 size += pixbytes * raster->width * raster->height;
478 }
479 }
480
481 return size;
482}
void rterror(const char *fmt,...)
Wrappers used for reporting errors and info.
Definition rt_context.c:199
#define RASTER_DEBUGF(level, msg,...)
Definition librtcore.h:299
rt_pixtype
Definition librtcore.h:185
int rt_pixtype_size(rt_pixtype pixtype)
Return size in bytes of a value in the given pixtype.
Definition rt_pixel.c:39
raster
Be careful!! Zeros function's input parameter can be a (height x width) array, not (width x height): ...
Definition rtrowdump.py:121
#define RT_WKB_HDR_SZ
Definition rt_wkb.c:273

References RASTER_DEBUGF, rt_pixtype_size(), RT_WKB_HDR_SZ, and rterror().

Referenced by rt_raster_to_wkb().

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