PostGIS 3.7.0dev-r@@SVN_REVISION@@
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◆ test_band_pixtype_4BUI()

static void test_band_pixtype_4BUI ( )
static

Definition at line 316 of file cu_band_basics.c.

316 {
317 rt_pixtype pixtype = PT_4BUI;
318 uint8_t *data = NULL;
319 rt_band band = NULL;
320 int width = 5;
321 int height = 5;
322 int err = 0;
323 int clamped = 0;
324 double val = 0;
325 int x;
326 int y;
327
328 /* inline band */
329 data = rtalloc(rt_pixtype_size(pixtype) * width * height);
330 CU_ASSERT(data != NULL);
331 memset(data, 0, rt_pixtype_size(pixtype) * width * height);
332
333 band = rt_band_new_inline(
334 width, height,
335 pixtype,
336 0, 0,
337 data
338 );
339 CU_ASSERT(band != NULL);
340 rt_band_set_ownsdata_flag(band, 1);
341 CU_ASSERT(rt_band_get_ownsdata_flag(band));
342
343 err = rt_band_set_nodata(band, 1, &clamped);
344 CU_ASSERT_EQUAL(err, ES_NONE);
345 CU_ASSERT(!clamped);
346 rt_band_get_nodata(band, &val);
347 CU_ASSERT_DOUBLE_EQUAL(val, 1, DBL_EPSILON);
348
349 err = rt_band_set_nodata(band, 0, &clamped);
350 CU_ASSERT_EQUAL(err, ES_NONE);
351 CU_ASSERT(!clamped);
352 rt_band_get_nodata(band, &val);
353 CU_ASSERT_DOUBLE_EQUAL(val, 0, DBL_EPSILON);
354
355 err = rt_band_set_nodata(band, 2, &clamped);
356 CU_ASSERT_EQUAL(err, ES_NONE);
357 CU_ASSERT(!clamped);
358 rt_band_get_nodata(band, &val);
359 CU_ASSERT_DOUBLE_EQUAL(val, 2, DBL_EPSILON);
360
361 err = rt_band_set_nodata(band, 4, &clamped);
362 CU_ASSERT_EQUAL(err, ES_NONE);
363 CU_ASSERT(!clamped);
364 rt_band_get_nodata(band, &val);
365 CU_ASSERT_DOUBLE_EQUAL(val, 4, DBL_EPSILON);
366
367 err = rt_band_set_nodata(band, 8, &clamped);
368 CU_ASSERT_EQUAL(err, ES_NONE);
369 CU_ASSERT(!clamped);
370 rt_band_get_nodata(band, &val);
371 CU_ASSERT_DOUBLE_EQUAL(val, 8, DBL_EPSILON);
372
373 err = rt_band_set_nodata(band, 15, &clamped);
374 CU_ASSERT_EQUAL(err, ES_NONE);
375 CU_ASSERT(!clamped);
376 rt_band_get_nodata(band, &val);
377 CU_ASSERT_DOUBLE_EQUAL(val, 15, DBL_EPSILON);
378
379 err = rt_band_set_nodata(band, 16, &clamped); /* out of value range */
380 CU_ASSERT_EQUAL(err, ES_NONE);
381 CU_ASSERT(clamped);
382
383 err = rt_band_set_nodata(band, 17, &clamped); /* out of value range */
384 CU_ASSERT_EQUAL(err, ES_NONE);
385 CU_ASSERT(clamped);
386
387 err = rt_band_set_pixel(band, 0, 0, 35, &clamped); /* out of value range */
388 CU_ASSERT_EQUAL(err, ES_NONE);
389 CU_ASSERT(clamped);
390
391 for (x=0; x<rt_band_get_width(band); ++x) {
392 for (y=0; y<rt_band_get_height(band); ++y) {
393 err = rt_band_set_pixel(band, x, y, 1, NULL);
394 CU_ASSERT_EQUAL(err, ES_NONE);
395 err = rt_band_get_pixel(band, x, y, &val, NULL);
396 CU_ASSERT_EQUAL(err, ES_NONE);
397 CU_ASSERT_DOUBLE_EQUAL(val, 1, DBL_EPSILON);
398
399 err = rt_band_set_pixel(band, x, y, 3, NULL);
400 CU_ASSERT_EQUAL(err, ES_NONE);
401 err = rt_band_get_pixel(band, x, y, &val, NULL);
402 CU_ASSERT_EQUAL(err, ES_NONE);
403 CU_ASSERT_DOUBLE_EQUAL(val, 3, DBL_EPSILON);
404
405 err = rt_band_set_pixel(band, x, y, 7, NULL);
406 CU_ASSERT_EQUAL(err, ES_NONE);
407 err = rt_band_get_pixel(band, x, y, &val, NULL);
408 CU_ASSERT_EQUAL(err, ES_NONE);
409 CU_ASSERT_DOUBLE_EQUAL(val, 7, DBL_EPSILON);
410
411 err = rt_band_set_pixel(band, x, y, 15, NULL);
412 CU_ASSERT_EQUAL(err, ES_NONE);
413 err = rt_band_get_pixel(band, x, y, &val, NULL);
414 CU_ASSERT_EQUAL(err, ES_NONE);
415 CU_ASSERT_DOUBLE_EQUAL(val, 15, DBL_EPSILON);
416 }
417 }
418
419 rt_band_destroy(band);
420}
rt_band_new_inline
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:64
rt_band_set_ownsdata_flag
void rt_band_set_ownsdata_flag(rt_band band, int flag)
Definition rt_band.c:826
rtalloc
void * rtalloc(size_t size)
Wrappers used for managing memory.
Definition rt_context.c:191
rt_band_get_width
uint16_t rt_band_get_width(rt_band band)
Return width of this band.
Definition rt_band.c:799
rt_band_get_pixel
rt_errorstate rt_band_get_pixel(rt_band band, int x, int y, double *value, int *nodata)
Get pixel value.
Definition rt_band.c:1551
rt_pixtype
rt_pixtype
Definition librtcore.h:188
PT_4BUI
@ PT_4BUI
Definition librtcore.h:191
rt_band_set_nodata
rt_errorstate rt_band_set_nodata(rt_band band, double val, int *converted)
Set nodata value.
Definition rt_band.c:892
rt_band_set_pixel
rt_errorstate rt_band_set_pixel(rt_band band, int x, int y, double val, int *converted)
Set single pixel's value.
Definition rt_band.c:1140
ES_NONE
@ ES_NONE
Definition librtcore.h:182
rt_band_destroy
void rt_band_destroy(rt_band band)
Destroy a raster band.
Definition rt_band.c:499
rt_band_get_nodata
rt_errorstate rt_band_get_nodata(rt_band band, double *nodata)
Get NODATA value.
Definition rt_band.c:2067
rt_band_get_ownsdata_flag
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:818
rt_band_get_height
uint16_t rt_band_get_height(rt_band band)
Return height of this band.
Definition rt_band.c:808
rt_pixtype_size
int rt_pixtype_size(rt_pixtype pixtype)
Return size in bytes of a value in the given pixtype.
Definition rt_pixel.c:40
rt_band_t
Definition librtcore.h:2515

References ES_NONE, PT_4BUI, 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(), and rtalloc().

Referenced by band_basics_suite_setup().

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