PostGIS 3.7.0dev-r@@SVN_REVISION@@
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◆ test_band_pixtype_32BF()

static void test_band_pixtype_32BF ( )
static

Definition at line 1056 of file cu_band_basics.c.

1056 {
1057 rt_pixtype pixtype = PT_32BF;
1058 uint8_t *data = NULL;
1059 rt_band band = NULL;
1060 int width = 5;
1061 int height = 5;
1062 int err = 0;
1063 int clamped = 0;
1064 double val = 0;
1065 int x;
1066 int y;
1067
1068 /* inline band */
1069 data = rtalloc(rt_pixtype_size(pixtype) * width * height);
1070 CU_ASSERT(data != NULL);
1071 memset(data, 0, rt_pixtype_size(pixtype) * width * height);
1072
1074 width, height,
1075 pixtype,
1076 0, 0,
1077 data
1078 );
1079 CU_ASSERT(band != NULL);
1081 CU_ASSERT(rt_band_get_ownsdata_flag(band));
1082
1083 err = rt_band_set_nodata(band, 1, &clamped);
1084 CU_ASSERT_EQUAL(err, ES_NONE);
1085 CU_ASSERT(!clamped);
1086 rt_band_get_nodata(band, &val);
1087 CU_ASSERT_DOUBLE_EQUAL(val, 1, DBL_EPSILON);
1088
1089 err = rt_band_set_nodata(band, 0, &clamped);
1090 CU_ASSERT_EQUAL(err, ES_NONE);
1091 CU_ASSERT(!clamped);
1092 rt_band_get_nodata(band, &val);
1093 CU_ASSERT_DOUBLE_EQUAL(val, 0, DBL_EPSILON);
1094
1095 err = rt_band_set_nodata(band, 65535.5, &clamped);
1096 CU_ASSERT_EQUAL(err, ES_NONE);
1097 CU_ASSERT(!clamped);
1098 rt_band_get_nodata(band, &val);
1099 CU_ASSERT_DOUBLE_EQUAL(val, 65535.5, DBL_EPSILON);
1100
1101 err = rt_band_set_nodata(band, 0.006, &clamped);
1102 CU_ASSERT_EQUAL(err, ES_NONE);
1103 CU_ASSERT(!clamped);
1104 rt_band_get_nodata(band, &val);
1105 CU_ASSERT_DOUBLE_EQUAL(val, 0.0060000000521540, DBL_EPSILON);
1106
1107 for (x=0; x<rt_band_get_width(band); ++x) {
1108 for (y=0; y<rt_band_get_height(band); ++y) {
1109 err = rt_band_set_pixel(band, x, y, 1, NULL);
1110 CU_ASSERT_EQUAL(err, ES_NONE);
1111 err = rt_band_get_pixel(band, x, y, &val, NULL);
1112 CU_ASSERT_EQUAL(err, ES_NONE);
1113 CU_ASSERT_DOUBLE_EQUAL(val, 1, DBL_EPSILON);
1114
1115 err = rt_band_set_pixel(band, x, y, 0, NULL);
1116 CU_ASSERT_EQUAL(err, ES_NONE);
1117 err = rt_band_get_pixel(band, x, y, &val, NULL);
1118 CU_ASSERT_EQUAL(err, ES_NONE);
1119 CU_ASSERT_DOUBLE_EQUAL(val, 0, DBL_EPSILON);
1120
1121 err = rt_band_set_pixel(band, x, y, 65535.5, NULL);
1122 CU_ASSERT_EQUAL(err, ES_NONE);
1123 err = rt_band_get_pixel(band, x, y, &val, NULL);
1124 CU_ASSERT_EQUAL(err, ES_NONE);
1125 CU_ASSERT_DOUBLE_EQUAL(val, 65535.5, DBL_EPSILON);
1126
1127 err = rt_band_set_pixel(band, x, y, 0.006, NULL);
1128 CU_ASSERT_EQUAL(err, ES_NONE);
1129 err = rt_band_get_pixel(band, x, y, &val, NULL);
1130 CU_ASSERT_EQUAL(err, ES_NONE);
1131 CU_ASSERT_DOUBLE_EQUAL(val, 0.0060000000521540, DBL_EPSILON);
1132 }
1133 }
1134
1135 rt_band_destroy(band);
1136}
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
void rt_band_set_ownsdata_flag(rt_band band, int flag)
Definition rt_band.c:826
void * rtalloc(size_t size)
Wrappers used for managing memory.
Definition rt_context.c:191
uint16_t rt_band_get_width(rt_band band)
Return width of this band.
Definition rt_band.c:799
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
Definition librtcore.h:188
@ PT_32BF
Definition librtcore.h:199
rt_errorstate rt_band_set_nodata(rt_band band, double val, int *converted)
Set nodata value.
Definition rt_band.c:892
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
Definition librtcore.h:182
void rt_band_destroy(rt_band band)
Destroy a raster band.
Definition rt_band.c:499
rt_errorstate rt_band_get_nodata(rt_band band, double *nodata)
Get NODATA value.
Definition rt_band.c:2067
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
uint16_t rt_band_get_height(rt_band band)
Return height of this band.
Definition rt_band.c:808
int rt_pixtype_size(rt_pixtype pixtype)
Return size in bytes of a value in the given pixtype.
Definition rt_pixel.c:40

References ES_NONE, PT_32BF, 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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