PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ test_band_pixtype_8BUI()

static void test_band_pixtype_8BUI ( )
static

Definition at line 416 of file cu_band_basics.c.

References ovdump::band, ovdump::data, ES_NONE, PT_8BUI, rt_band_destroy(), rt_band_get_height(), rt_band_get_nodata(), rt_band_get_ownsdata_flag(), rt_band_get_pixel(), rt_band_get_width(), rt_band_new_inline(), rt_band_set_nodata(), rt_band_set_ownsdata_flag(), rt_band_set_pixel(), rt_pixtype_size(), rtalloc(), pixval::x, and pixval::y.

Referenced by band_basics_suite_setup().

416  {
417  rt_pixtype pixtype = PT_8BUI;
418  uint8_t *data = NULL;
419  rt_band band = NULL;
420  int width = 5;
421  int height = 5;
422  int err = 0;
423  int clamped = 0;
424  double val = 0;
425  int x;
426  int y;
427 
428  /* inline band */
429  data = rtalloc(rt_pixtype_size(pixtype) * width * height);
430  CU_ASSERT(data != NULL);
431  memset(data, 0, rt_pixtype_size(pixtype) * width * height);
432 
433  band = rt_band_new_inline(
434  width, height,
435  pixtype,
436  0, 0,
437  data
438  );
439  CU_ASSERT(band != NULL);
440  rt_band_set_ownsdata_flag(band, 1);
441  CU_ASSERT(rt_band_get_ownsdata_flag(band));
442 
443  err = rt_band_set_nodata(band, 1, &clamped);
444  CU_ASSERT_EQUAL(err, ES_NONE);
445  CU_ASSERT(!clamped);
446  rt_band_get_nodata(band, &val);
447  CU_ASSERT_DOUBLE_EQUAL(val, 1, DBL_EPSILON);
448 
449  err = rt_band_set_nodata(band, 0, &clamped);
450  CU_ASSERT_EQUAL(err, ES_NONE);
451  CU_ASSERT(!clamped);
452  rt_band_get_nodata(band, &val);
453  CU_ASSERT_DOUBLE_EQUAL(val, 0, DBL_EPSILON);
454 
455  err = rt_band_set_nodata(band, 2, &clamped);
456  CU_ASSERT_EQUAL(err, ES_NONE);
457  CU_ASSERT(!clamped);
458  rt_band_get_nodata(band, &val);
459  CU_ASSERT_DOUBLE_EQUAL(val, 2, DBL_EPSILON);
460 
461  err = rt_band_set_nodata(band, 4, &clamped);
462  CU_ASSERT_EQUAL(err, ES_NONE);
463  CU_ASSERT(!clamped);
464  rt_band_get_nodata(band, &val);
465  CU_ASSERT_DOUBLE_EQUAL(val, 4, DBL_EPSILON);
466 
467  err = rt_band_set_nodata(band, 8, &clamped);
468  CU_ASSERT_EQUAL(err, ES_NONE);
469  CU_ASSERT(!clamped);
470  rt_band_get_nodata(band, &val);
471  CU_ASSERT_DOUBLE_EQUAL(val, 8, DBL_EPSILON);
472 
473  err = rt_band_set_nodata(band, 15, &clamped);
474  CU_ASSERT_EQUAL(err, ES_NONE);
475  CU_ASSERT(!clamped);
476  rt_band_get_nodata(band, &val);
477  CU_ASSERT_DOUBLE_EQUAL(val, 15, DBL_EPSILON);
478 
479  err = rt_band_set_nodata(band, 31, &clamped);
480  CU_ASSERT_EQUAL(err, ES_NONE);
481  CU_ASSERT(!clamped);
482  rt_band_get_nodata(band, &val);
483  CU_ASSERT_DOUBLE_EQUAL(val, 31, DBL_EPSILON);
484 
485  err = rt_band_set_nodata(band, 255, &clamped);
486  CU_ASSERT_EQUAL(err, ES_NONE);
487  CU_ASSERT(!clamped);
488  rt_band_get_nodata(band, &val);
489  CU_ASSERT_DOUBLE_EQUAL(val, 255, DBL_EPSILON);
490 
491  err = rt_band_set_nodata(band, 256, &clamped); /* out of value range */
492  CU_ASSERT_EQUAL(err, ES_NONE);
493  CU_ASSERT(clamped);
494 
495  err = rt_band_set_pixel(band, 0, 0, 256, &clamped); /* out of value range */
496  CU_ASSERT_EQUAL(err, ES_NONE);
497  CU_ASSERT(clamped);
498 
499  for (x=0; x<rt_band_get_width(band); ++x) {
500  for (y=0; y<rt_band_get_height(band); ++y) {
501  err = rt_band_set_pixel(band, x, y, 31, NULL);
502  CU_ASSERT_EQUAL(err, ES_NONE);
503  err = rt_band_get_pixel(band, x, y, &val, NULL);
504  CU_ASSERT_EQUAL(err, ES_NONE);
505  CU_ASSERT_DOUBLE_EQUAL(val, 31, DBL_EPSILON);
506 
507  err = rt_band_set_pixel(band, x, y, 255, NULL);
508  CU_ASSERT_EQUAL(err, ES_NONE);
509  err = rt_band_get_pixel(band, x, y, &val, NULL);
510  CU_ASSERT_EQUAL(err, ES_NONE);
511  CU_ASSERT_DOUBLE_EQUAL(val, 255, DBL_EPSILON);
512 
513  err = rt_band_set_pixel(band, x, y, 1, NULL);
514  CU_ASSERT_EQUAL(err, ES_NONE);
515  err = rt_band_get_pixel(band, x, y, &val, NULL);
516  CU_ASSERT_EQUAL(err, ES_NONE);
517  CU_ASSERT_DOUBLE_EQUAL(val, 1, DBL_EPSILON);
518  }
519  }
520 
521  rt_band_destroy(band);
522 }
band
Definition: ovdump.py:57
void * rtalloc(size_t size)
Wrappers used for managing memory.
Definition: rt_context.c:171
data
Definition: ovdump.py:103
rt_errorstate rt_band_set_nodata(rt_band band, double val, int *converted)
Set nodata value.
Definition: rt_band.c:685
rt_pixtype
Definition: librtcore.h:185
void rt_band_destroy(rt_band band)
Destroy a raster band.
Definition: rt_band.c:336
rt_errorstate rt_band_get_nodata(rt_band band, double *nodata)
Get NODATA value.
Definition: rt_band.c:1682
void rt_band_set_ownsdata_flag(rt_band band, int flag)
Definition: rt_band.c:619
int rt_band_get_ownsdata_flag(rt_band band)
Return 0 (FALSE) or non-zero (TRUE) indicating if rt_band is responsible for managing the memory for ...
Definition: rt_band.c:611
rt_errorstate rt_band_get_pixel(rt_band band, int x, int y, double *value, int *nodata)
Get pixel value.
Definition: rt_band.c:1173
uint16_t rt_band_get_width(rt_band band)
Return width of this band.
Definition: rt_band.c:592
uint16_t rt_band_get_height(rt_band band)
Return height of this band.
Definition: rt_band.c:601
rt_band rt_band_new_inline(uint16_t width, uint16_t height, rt_pixtype pixtype, uint32_t hasnodata, double nodataval, uint8_t *data)
Create an in-db rt_band with no data.
Definition: rt_band.c:59
int rt_pixtype_size(rt_pixtype pixtype)
Return size in bytes of a value in the given pixtype.
Definition: rt_pixel.c:39
rt_errorstate rt_band_set_pixel(rt_band band, int x, int y, double val, int *converted)
Set single pixel&#39;s value.
Definition: rt_band.c:926
unsigned char uint8_t
Definition: uthash.h:79
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