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/*
* PostGIS Raster - Raster Types for PostGIS
* http://trac.osgeo.org/postgis/wiki/WKTRaster
*
* Copyright (C) 2013 Regents of the University of California
* <bkpark@ucdavis.edu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "CUnit/Basic.h"
#include "cu_tester.h"
static void test_rgb_to_hsv() {
double rgb[3] = {0, 0, 0};
double hsv[3] = {0, 0, 0};
rt_util_rgb_to_hsv(rgb, hsv);
CU_ASSERT_DOUBLE_EQUAL(hsv[0], 0, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0, DBL_EPSILON);
rgb[0] = 0;
rgb[1] = 0;
rgb[2] = 1;
rt_util_rgb_to_hsv(rgb, hsv);
CU_ASSERT_DOUBLE_EQUAL(hsv[0], 2/3., DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[1], 1, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[2], 1, DBL_EPSILON);
rgb[0] = 0;
rgb[1] = 0.25;
rgb[2] = 0.5;
rt_util_rgb_to_hsv(rgb, hsv);
CU_ASSERT_DOUBLE_EQUAL(hsv[0], 7/12., DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[1], 1, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0.5, DBL_EPSILON);
rgb[0] = 0.5;
rgb[1] = 1;
rgb[2] = 0.5;
rt_util_rgb_to_hsv(rgb, hsv);
CU_ASSERT_DOUBLE_EQUAL(hsv[0], 1/3., DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0.5, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[2], 1, DBL_EPSILON);
rgb[0] = 0.2;
rgb[1] = 0.4;
rgb[2] = 0.4;
rt_util_rgb_to_hsv(rgb, hsv);
CU_ASSERT_DOUBLE_EQUAL(hsv[0], 0.5, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0.5, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0.4, DBL_EPSILON);
}
static void test_hsv_to_rgb() {
double hsv[3] = {0, 0, 0};
double rgb[3] = {0, 0, 0};
rt_util_hsv_to_rgb(hsv, rgb);
CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0, DBL_EPSILON);
hsv[0] = 2/3.;
hsv[1] = 1;
hsv[2] = 1;
rt_util_hsv_to_rgb(hsv, rgb);
CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0., DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[2], 1, DBL_EPSILON);
hsv[0] = 7/12.;
hsv[1] = 1;
hsv[2] = 0.5;
rt_util_hsv_to_rgb(hsv, rgb);
CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0.25, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0.5, DBL_EPSILON);
hsv[0] = 1/3.;
hsv[1] = 0.5;
hsv[2] = 1;
rt_util_hsv_to_rgb(hsv, rgb);
CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0.5, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[1], 1, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0.5, DBL_EPSILON);
hsv[0] = 0.5;
hsv[1] = 0.5;
hsv[2] = 0.4;
rt_util_hsv_to_rgb(hsv, rgb);
CU_ASSERT_DOUBLE_EQUAL(rgb[0], 0.2, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[1], 0.4, DBL_EPSILON);
CU_ASSERT_DOUBLE_EQUAL(rgb[2], 0.4, DBL_EPSILON);
}
static void test_util_gdal_open() {
extern char *gdal_enabled_drivers;
GDALDatasetH ds;
char *disable_all = GDAL_DISABLE_ALL;
char *enabled = "GTiff JPEG PNG";
// char *enabled_vsi = "GTiff JPEG PNG VSICURL";
rt_util_gdal_register_all(1);
/* all drivers disabled */
gdal_enabled_drivers = disable_all;
ds = rt_util_gdal_open("/tmp/foo", GA_ReadOnly, 0);
CU_ASSERT(ds == NULL);
/* can't test VSICURL if HTTP driver not found */
if (!rt_util_gdal_driver_registered("HTTP"))
return;
/* enabled drivers, no VSICURL */
gdal_enabled_drivers = enabled;
ds = rt_util_gdal_open("/vsicurl/http://download.osgeo.org/gdal/data/gtiff/small_world.tif", GA_ReadOnly, 0);
CU_ASSERT(ds == NULL);
/* enabled drivers with VSICURL */
/* disabled as we don't want network access as a requirement
gdal_enabled_drivers = enabled_vsi;
ds = rt_util_gdal_open("/vsicurl/http://download.osgeo.org/gdal/data/gtiff/small_world.tif", GA_ReadOnly, 0);
CU_ASSERT(ds != NULL);
GDALClose(ds);
*/
}
/* register tests */
void misc_suite_setup(void);
void misc_suite_setup(void)
{
CU_pSuite suite = CU_add_suite("misc", NULL, NULL);
PG_ADD_TEST(suite, test_rgb_to_hsv);
PG_ADD_TEST(suite, test_hsv_to_rgb);
PG_ADD_TEST(suite, test_util_gdal_open);
}
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