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raster/test/cunit/cu_misc.c
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1/*
2 * PostGIS Raster - Raster Types for PostGIS
3 * http://trac.osgeo.org/postgis/wiki/WKTRaster
4 *
5 * Copyright (C) 2013 Regents of the University of California
6 * <bkpark@ucdavis.edu>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 *
22 */
23
24#include "CUnit/Basic.h"
25#include "cu_tester.h"
26
27static void test_rgb_to_hsv() {
28 double rgb[3] = {0, 0, 0};
29 double hsv[3] = {0, 0, 0};
30
31 rt_util_rgb_to_hsv(rgb, hsv);
32 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 0, DBL_EPSILON);
33 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0, DBL_EPSILON);
34 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0, DBL_EPSILON);
35
36 rgb[0] = 0;
37 rgb[1] = 0;
38 rgb[2] = 1;
39 rt_util_rgb_to_hsv(rgb, hsv);
40 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 2/3., DBL_EPSILON);
41 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 1, DBL_EPSILON);
42 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 1, DBL_EPSILON);
43
44 rgb[0] = 0;
45 rgb[1] = 0.25;
46 rgb[2] = 0.5;
47 rt_util_rgb_to_hsv(rgb, hsv);
48 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 7/12., DBL_EPSILON);
49 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 1, DBL_EPSILON);
50 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0.5, DBL_EPSILON);
51
52 rgb[0] = 0.5;
53 rgb[1] = 1;
54 rgb[2] = 0.5;
55 rt_util_rgb_to_hsv(rgb, hsv);
56 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 1/3., DBL_EPSILON);
57 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0.5, DBL_EPSILON);
58 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 1, DBL_EPSILON);
59
60 rgb[0] = 0.2;
61 rgb[1] = 0.4;
62 rgb[2] = 0.4;
63 rt_util_rgb_to_hsv(rgb, hsv);
64 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 0.5, DBL_EPSILON);
65 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0.5, DBL_EPSILON);
66 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0.4, DBL_EPSILON);
67}
68
69static void test_hsv_to_rgb() {
70 double hsv[3] = {0, 0, 0};
71 double rgb[3] = {0, 0, 0};
72
73 rt_util_hsv_to_rgb(hsv, rgb);
74 CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0, DBL_EPSILON);
75 CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0, DBL_EPSILON);
76 CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0, DBL_EPSILON);
77
78 hsv[0] = 2/3.;
79 hsv[1] = 1;
80 hsv[2] = 1;
81 rt_util_hsv_to_rgb(hsv, rgb);
82 CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0., DBL_EPSILON);
83 CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0, DBL_EPSILON);
84 CU_ASSERT_DOUBLE_EQUAL(rgb[2], 1, DBL_EPSILON);
85
86 hsv[0] = 7/12.;
87 hsv[1] = 1;
88 hsv[2] = 0.5;
89 rt_util_hsv_to_rgb(hsv, rgb);
90 CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0, DBL_EPSILON);
91 CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0.25, DBL_EPSILON);
92 CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0.5, DBL_EPSILON);
93
94 hsv[0] = 1/3.;
95 hsv[1] = 0.5;
96 hsv[2] = 1;
97 rt_util_hsv_to_rgb(hsv, rgb);
98 CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0.5, DBL_EPSILON);
99 CU_ASSERT_DOUBLE_EQUAL(rgb[1], 1, DBL_EPSILON);
100 CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0.5, DBL_EPSILON);
101
102 hsv[0] = 0.5;
103 hsv[1] = 0.5;
104 hsv[2] = 0.4;
105 rt_util_hsv_to_rgb(hsv, rgb);
106 CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0.2, DBL_EPSILON);
107 CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0.4, DBL_EPSILON);
108 CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0.4, DBL_EPSILON);
109}
110
111static void test_util_gdal_open() {
112 extern char *gdal_enabled_drivers;
113
114 GDALDatasetH ds;
115
116 char *disable_all = GDAL_DISABLE_ALL;
117 char *enabled = "GTiff JPEG PNG";
118 // char *enabled_vsi = "GTiff JPEG PNG VSICURL";
119
120 rt_util_gdal_register_all(1);
121
122 /* all drivers disabled */
123 gdal_enabled_drivers = disable_all;
124 ds = rt_util_gdal_open("/tmp/foo", GA_ReadOnly, 0);
125 CU_ASSERT(ds == NULL);
126
127 /* can't test VSICURL if HTTP driver not found */
128 if (!rt_util_gdal_driver_registered("HTTP"))
129 return;
130
131 /* enabled drivers, no VSICURL */
132 gdal_enabled_drivers = enabled;
133 ds = rt_util_gdal_open("/vsicurl/http://download.osgeo.org/gdal/data/gtiff/small_world.tif", GA_ReadOnly, 0);
134 CU_ASSERT(ds == NULL);
135
136 /* enabled drivers with VSICURL */
137 /* disabled as we don't want network access as a requirement */
138 // gdal_enabled_drivers = enabled_vsi;
139 // ds = rt_util_gdal_open("/vsicurl/http://download.osgeo.org/gdal/data/gtiff/small_world.tif", GA_ReadOnly, 0);
140 // CU_ASSERT(ds != NULL);
141 // GDALClose(ds);
142
143}
144
145/* register tests */
146void misc_suite_setup(void);
147void misc_suite_setup(void)
148{
149 CU_pSuite suite = CU_add_suite("misc", NULL, NULL);
150 PG_ADD_TEST(suite, test_rgb_to_hsv);
151 PG_ADD_TEST(suite, test_hsv_to_rgb);
152 PG_ADD_TEST(suite, test_util_gdal_open);
153}
154
PG_ADD_TEST
#define PG_ADD_TEST(suite, testfunc)
Definition liblwgeom/cunit/cu_tester.h:21
rt_util_rgb_to_hsv
rt_errorstate rt_util_rgb_to_hsv(double rgb[3], double hsv[3])
Definition rt_util.c:656
rt_util_gdal_register_all
int rt_util_gdal_register_all(int force_register_all)
Definition rt_util.c:444
rt_util_gdal_open
GDALDatasetH rt_util_gdal_open(const char *fn, GDALAccess fn_access, int shared)
Definition rt_util.c:491
rt_util_gdal_driver_registered
int rt_util_gdal_driver_registered(const char *drv)
Definition rt_util.c:463
GDAL_DISABLE_ALL
#define GDAL_DISABLE_ALL
Definition librtcore.h:2240
rt_util_hsv_to_rgb
rt_errorstate rt_util_hsv_to_rgb(double hsv[3], double rgb[3])
Definition rt_util.c:710
test_util_gdal_open
static void test_util_gdal_open()
Definition raster/test/cunit/cu_misc.c:111
misc_suite_setup
void misc_suite_setup(void)
Definition raster/test/cunit/cu_misc.c:147
test_hsv_to_rgb
static void test_hsv_to_rgb()
Definition raster/test/cunit/cu_misc.c:69
test_rgb_to_hsv
static void test_rgb_to_hsv()
Definition raster/test/cunit/cu_misc.c:27
cu_tester.h
gdal_enabled_drivers
char * gdal_enabled_drivers
Definition rt_util.c:483