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h3.c
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h3.c
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/* h3 extension for PHP */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "ext/spl/spl_exceptions.h"
#include "ext/standard/info.h"
#include "h3_arginfo.h"
#include "php.h"
#include "php_h3.h"
#include "zend_exceptions.h"
#include <h3/h3api.h>
ZEND_DECLARE_MODULE_GLOBALS(h3)
#define H3_STRVAL_LEN 17
#define H3_INVALID_INDEX 0
#define H3_HEX_NUM_EDGES 6
#define H3_EDGE_NUM_INDX 2
#define H3_MIN_RES 0
#define H3_MAX_RES 15
#define H3_AREA_UNIT_KM2 0
#define H3_AREA_UNIT_M2 1
#define H3_AREA_UNIT_RADS2 2
#define H3_LENGTH_UNIT_KM 0
#define H3_LENGTH_UNIT_M 1
#define H3_LENGTH_UNIT_RADS 2
#define H3_ERR_CODE_INVALID_RES 1
#define H3_ERR_CODE_INVALID_INDEX 2
#define H3_ERR_CODE_UNSUPPORTED_UNIT 3
#define H3_ERR_CODE_COMPACT_ERROR 4
#define H3_ERR_CODE_UNCOMPACT_ERROR 5
#define H3_ERR_CODE_LINE_SIZE_ERROR 6
#define H3_ERR_CODE_PENTAGON_ENCOUNTERED 7
#define H3_THROW(message, code) zend_throw_exception(H3_H3Exception_ce, message, code)
#define VALIDATE_H3_RES(res) \
if (H3_G(validate_res) && (res < H3_MIN_RES || res > H3_MAX_RES)) { \
H3_THROW("Invalid resolution", H3_ERR_CODE_INVALID_RES); \
RETURN_THROWS(); \
}
#define VALIDATE_H3_INDEX(index) \
if (H3_G(validate_index) && !h3IsValid(index)) { \
H3_THROW("Invalid H3 index", H3_ERR_CODE_INVALID_INDEX); \
RETURN_THROWS(); \
}
#define VALIDATE_H3_UNI_EDGE(index) \
if (H3_G(validate_index) && !h3UnidirectionalEdgeIsValid(index)) { \
H3_THROW("Invalid H3 unidirectional edge", H3_ERR_CODE_INVALID_INDEX); \
RETURN_THROWS(); \
}
#define OBJ_IS_A(val, ce) (Z_TYPE_P(val) == IS_OBJECT && instanceof_function(Z_OBJCE_P(val), ce))
typedef H3Index H3UniEdge;
zend_class_entry *H3_H3Exception_ce;
zend_class_entry *H3_H3Index_ce;
zend_class_entry *H3_H3UniEdge_ce;
zend_class_entry *H3_GeoCoord_ce;
zend_class_entry *H3_GeoBoundary_ce;
zend_class_entry *H3_GeoPolygon_ce;
zend_class_entry *H3_GeoMultiPolygon_ce;
zend_class_entry *H3_CoordIJ_ce;
int max_hex_kring_size(int k)
{
return k == 0 ? 1 : k * H3_HEX_NUM_EDGES;
}
H3Index obj_to_h3(zend_object *obj)
{
zval *prop;
zval rv;
prop = zend_read_property(H3_H3Index_ce, obj, "index", sizeof("index") - 1, 1, &rv);
return zval_get_long(prop);
}
zend_object *h3_to_obj(H3Index index)
{
zend_object *obj = zend_objects_new(H3_H3Index_ce);
object_properties_init(obj, H3_H3Index_ce);
zend_update_property_long(H3_H3Index_ce, obj, "index", sizeof("index") - 1, index);
return obj;
}
void h3_array_to_zend_array(H3Index *in, int size, zval *out)
{
for (int i = 0; i < size; i++) {
if (in[i] != H3_INVALID_INDEX) {
add_next_index_object(out, h3_to_obj(in[i]));
}
}
}
int zend_array_to_h3_array(zend_array *arr, H3Index *out)
{
int idx = 0;
zval *val;
ZEND_HASH_FOREACH_VAL(arr, val)
{
if (OBJ_IS_A(val, H3_H3Index_ce)) {
out[idx++] = obj_to_h3(Z_OBJ_P(val));
} else {
return -1;
}
}
ZEND_HASH_FOREACH_END();
return 0;
}
H3UniEdge obj_to_h3ue(zend_object *obj)
{
zval *prop;
zval rv;
prop = zend_read_property(H3_H3UniEdge_ce, obj, "index", sizeof("index") - 1, 1, &rv);
return zval_get_long(prop);
}
zend_object *h3ue_to_obj(H3UniEdge index)
{
zend_object *obj = zend_objects_new(H3_H3UniEdge_ce);
object_properties_init(obj, H3_H3UniEdge_ce);
zend_update_property_long(H3_H3UniEdge_ce, obj, "index", sizeof("index") - 1, index);
return obj;
}
void h3ue_array_to_zend_array(H3UniEdge *in, int size, zval *out)
{
for (int i = 0; i < size; i++) {
if (in[i] != H3_INVALID_INDEX) {
add_next_index_object(out, h3ue_to_obj(in[i]));
}
}
}
void obj_to_geo(zend_object *obj, GeoCoord *geo)
{
zval *prop;
zval rv;
prop = zend_read_property(H3_GeoCoord_ce, obj, "lat", sizeof("lat") - 1, 1, &rv);
geo->lat = degsToRads(zval_get_double(prop));
prop = zend_read_property(H3_GeoCoord_ce, obj, "lon", sizeof("lon") - 1, 1, &rv);
geo->lon = degsToRads(zval_get_double(prop));
}
zend_object *geo_to_obj(GeoCoord *geo)
{
zend_object *obj = zend_objects_new(H3_GeoCoord_ce);
object_properties_init(obj, H3_GeoCoord_ce);
zend_update_property_double(H3_GeoCoord_ce, obj, "lat", sizeof("lat") - 1, radsToDegs(geo->lat));
zend_update_property_double(H3_GeoCoord_ce, obj, "lon", sizeof("lon") - 1, radsToDegs(geo->lon));
return obj;
}
zend_object *geo_boundary_to_obj(GeoBoundary *boundary)
{
zval val;
array_init_size(&val, boundary->numVerts);
for (int i = 0; i < boundary->numVerts; i++) {
add_next_index_object(&val, geo_to_obj(&boundary->verts[i]));
}
zend_object *obj = zend_objects_new(H3_GeoBoundary_ce);
object_properties_init(obj, H3_GeoBoundary_ce);
zend_update_property(H3_GeoBoundary_ce, obj, "vertices", sizeof("vertices") - 1, &val);
zval_ptr_dtor(&val);
return obj;
}
int zend_array_to_geocoord_array(zend_array *arr, GeoCoord *out)
{
int idx = 0;
zval *val;
ZEND_HASH_FOREACH_VAL(arr, val)
{
if (OBJ_IS_A(val, H3_GeoCoord_ce)) {
obj_to_geo(Z_OBJ_P(val), &out[idx++]);
} else {
return -1;
}
}
ZEND_HASH_FOREACH_END();
return 0;
}
int obj_to_geofence(zend_object *obj, Geofence *out)
{
zval *prop;
zval rv;
zend_array *arr;
int idx = 0;
zval *val;
prop = zend_read_property(H3_GeoBoundary_ce, obj, "vertices", sizeof("vertices") - 1, 1, &rv);
arr = Z_ARR_P(prop);
uint32_t num_verts = zend_array_count(arr);
GeoCoord *verts = ecalloc(num_verts, sizeof(GeoCoord));
ZEND_HASH_FOREACH_VAL(arr, val)
{
if (OBJ_IS_A(val, H3_GeoCoord_ce)) {
obj_to_geo(Z_OBJ_P(val), &verts[idx++]);
} else {
efree(verts);
return -1;
}
}
ZEND_HASH_FOREACH_END();
out->numVerts = num_verts;
out->verts = verts;
efree(verts);
return 0;
}
int zend_array_to_geofence_array(zend_array *arr, Geofence *out)
{
int idx = 0;
zval *val;
Geofence tmp;
ZEND_HASH_FOREACH_VAL(arr, val)
{
if (OBJ_IS_A(val, H3_GeoBoundary_ce) && obj_to_geofence(Z_OBJ_P(val), &tmp) == 0) {
out[idx++] = tmp;
} else {
return -1;
}
}
ZEND_HASH_FOREACH_END();
return 0;
}
void h3_line(zend_object *start, zend_object *end, INTERNAL_FUNCTION_PARAMETERS)
{
H3Index startIndex = obj_to_h3(start);
H3Index endIndex = obj_to_h3(end);
int size = h3LineSize(startIndex, endIndex);
if (size < 0) {
H3_THROW("Failed to caluclate line size", H3_ERR_CODE_LINE_SIZE_ERROR);
RETURN_THROWS();
}
H3Index *out = ecalloc(size, sizeof(H3Index));
h3Line(startIndex, endIndex, out);
array_init(return_value);
h3_array_to_zend_array(out, size, return_value);
efree(out);
}
int geofence_obj_to_geojson_arr(zend_object *geofence_obj, zval *geojson_geofence_val)
{
zval *prop;
zval rv;
zend_array *geofence_verts_arr;
zval *geofence_vert_val;
zend_object *coord_obj;
zval coords_val;
zval first_coords_val;
int idx = 0;
uint32_t verts_count;
prop = zend_read_property(H3_GeoBoundary_ce, geofence_obj, "vertices", sizeof("vertices") - 1, 1, &rv);
geofence_verts_arr = Z_ARRVAL_P(prop);
verts_count = zend_array_count(geofence_verts_arr);
if (verts_count == 0) {
return -1;
}
array_init_size(geojson_geofence_val, 1 + verts_count);
ZEND_HASH_FOREACH_VAL(geofence_verts_arr, geofence_vert_val)
{
if (Z_TYPE_P(geofence_vert_val) == IS_OBJECT && OBJ_IS_A(geofence_vert_val, H3_GeoCoord_ce)) {
coord_obj = Z_OBJ_P(geofence_vert_val);
array_init_size(&coords_val, 2);
prop = zend_read_property(H3_GeoCoord_ce, coord_obj, "lon", sizeof("lon") - 1, 1, &rv);
add_next_index_double(&coords_val, Z_DVAL_P(prop));
prop = zend_read_property(H3_GeoCoord_ce, coord_obj, "lat", sizeof("lat") - 1, 1, &rv);
add_next_index_double(&coords_val, Z_DVAL_P(prop));
add_next_index_zval(geojson_geofence_val, &coords_val);
if (idx++ == 0) {
ZVAL_COPY(&first_coords_val, &coords_val);
}
} else {
zval_ptr_dtor(geojson_geofence_val);
return -1;
}
}
ZEND_HASH_FOREACH_END();
add_next_index_zval(geojson_geofence_val, &first_coords_val);
return 0;
}
int multi_polygon_obj_to_geo_json(zend_object *obj, zval *return_value)
{
zval *prop;
zval rv;
zend_array *polygons_arr;
zval *val;
zend_object *polygon_obj;
zend_object *geofence_obj;
zend_array *holes_arr;
zval geojson_polygon_val;
zval coords_val;
zval *hole_val;
prop = zend_read_property(H3_GeoMultiPolygon_ce, obj, "polygons", sizeof("polygons") - 1, 1, &rv);
polygons_arr = Z_ARRVAL_P(prop);
array_init_size(return_value, zend_array_count(polygons_arr));
ZEND_HASH_FOREACH_VAL(polygons_arr, val)
{
if (Z_TYPE_P(val) == IS_OBJECT && OBJ_IS_A(val, H3_GeoPolygon_ce)) {
polygon_obj = Z_OBJ_P(val);
prop = zend_read_property(H3_GeoPolygon_ce, polygon_obj, "geofence", sizeof("geofence") - 1, 1, &rv);
geofence_obj = Z_OBJ_P(prop);
prop = zend_read_property(H3_GeoPolygon_ce, polygon_obj, "holes", sizeof("holes") - 1, 1, &rv);
holes_arr = Z_ARRVAL_P(prop);
array_init_size(&geojson_polygon_val, 1 + zend_array_count(holes_arr));
if (geofence_obj_to_geojson_arr(geofence_obj, &coords_val) == 0) {
add_next_index_zval(&geojson_polygon_val, &coords_val);
} else {
zval_ptr_dtor(&geojson_polygon_val);
return -1;
}
ZEND_HASH_FOREACH_VAL(holes_arr, hole_val)
{
if (Z_TYPE_P(hole_val) == IS_OBJECT && OBJ_IS_A(hole_val, H3_GeoBoundary_ce)) {
if (geofence_obj_to_geojson_arr(Z_OBJ_P(hole_val), &coords_val) == 0) {
add_next_index_zval(&geojson_polygon_val, &coords_val);
} else {
zval_ptr_dtor(&geojson_polygon_val);
return -1;
}
} else {
zval_ptr_dtor(&geojson_polygon_val);
return -1;
}
}
ZEND_HASH_FOREACH_END();
add_next_index_zval(return_value, &geojson_polygon_val);
} else {
return -1;
}
}
ZEND_HASH_FOREACH_END();
return 0;
}
zend_object *geo_loop_to_geo_boundary_obj(LinkedGeoLoop *geo_loop)
{
LinkedGeoCoord *geo_coord;
zval coords_val;
zend_object *obj;
array_init(&coords_val);
geo_coord = geo_loop->first;
while (geo_coord) {
add_next_index_object(&coords_val, geo_to_obj(&geo_coord->vertex));
geo_coord = geo_coord->next;
}
obj = zend_objects_new(H3_GeoBoundary_ce);
object_properties_init(obj, H3_GeoBoundary_ce);
zend_update_property(H3_GeoBoundary_ce, obj, "vertices", sizeof("vertices") - 1, &coords_val);
Z_TRY_DELREF(coords_val);
return obj;
}
PHP_FUNCTION(degs_to_rads)
{
double degrees;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_DOUBLE(degrees)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
RETURN_DOUBLE(degsToRads(degrees));
}
PHP_FUNCTION(rads_to_degs)
{
double radians;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_DOUBLE(radians)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
RETURN_DOUBLE(radsToDegs(radians));
}
PHP_FUNCTION(hex_area)
{
zend_long res;
zend_long unit;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_LONG(res)
Z_PARAM_LONG(unit)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_RES(res);
switch (unit) {
case H3_AREA_UNIT_KM2:
RETURN_DOUBLE(hexAreaKm2(res));
case H3_AREA_UNIT_M2:
RETURN_DOUBLE(hexAreaM2(res));
default:
H3_THROW("Unsupported unit (must be one of H3_AREA_UNIT_KM2, or H3_AREA_UNIT_M2)",
H3_ERR_CODE_UNSUPPORTED_UNIT);
RETURN_THROWS();
}
}
PHP_FUNCTION(edge_length)
{
zend_long res;
zend_long unit;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_LONG(res)
Z_PARAM_LONG(unit)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_RES(res);
switch (unit) {
case H3_LENGTH_UNIT_KM:
RETURN_DOUBLE(edgeLengthKm(res));
case H3_LENGTH_UNIT_M:
RETURN_DOUBLE(edgeLengthM(res));
default:
H3_THROW("Unsupported unit (must be one of H3_LENGTH_UNIT_KM, or H3_LENGTH_UNIT_RADS)",
H3_ERR_CODE_UNSUPPORTED_UNIT);
RETURN_THROWS();
}
}
PHP_FUNCTION(num_hexagons)
{
zend_long res;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(res)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_RES(res);
RETURN_LONG(numHexagons(res));
}
PHP_FUNCTION(get_res0_indexes)
{
ZEND_PARSE_PARAMETERS_NONE();
int max = res0IndexCount();
H3Index *indexes = ecalloc(max, sizeof(H3Index));
getRes0Indexes(indexes);
array_init_size(return_value, max);
h3_array_to_zend_array(indexes, max, return_value);
efree(indexes);
}
PHP_FUNCTION(get_pentagon_indexes)
{
zend_long res;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(res)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_RES(res);
int max = pentagonIndexCount();
H3Index *indexes = ecalloc(max, sizeof(H3Index));
getPentagonIndexes(res, indexes);
array_init_size(return_value, max);
h3_array_to_zend_array(indexes, max, return_value);
efree(indexes);
}
PHP_FUNCTION(point_dist)
{
zend_object *a;
zend_object *b;
zend_long unit;
// clang-format off
ZEND_PARSE_PARAMETERS_START(3, 3)
Z_PARAM_OBJ_OF_CLASS(a, H3_GeoCoord_ce)
Z_PARAM_OBJ_OF_CLASS(b, H3_GeoCoord_ce)
Z_PARAM_LONG(unit)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
GeoCoord *geoA = emalloc(sizeof(GeoCoord));
GeoCoord *geoB = emalloc(sizeof(GeoCoord));
obj_to_geo(a, geoA);
obj_to_geo(b, geoB);
switch (unit) {
case H3_LENGTH_UNIT_KM:
RETVAL_DOUBLE(pointDistKm(geoA, geoB));
break;
case H3_LENGTH_UNIT_M:
RETVAL_DOUBLE(pointDistM(geoA, geoB));
break;
case H3_LENGTH_UNIT_RADS:
RETVAL_DOUBLE(pointDistRads(geoA, geoB));
break;
default:
H3_THROW("Unsupported unit (must be one of H3_LENGTH_UNIT_KM, H3_LENGTH_UNIT_M, or H3_LENGTH_UNIT_RADS)",
H3_ERR_CODE_UNSUPPORTED_UNIT);
break;
}
efree(geoA);
efree(geoB);
if (Z_TYPE_P(return_value) == IS_NULL) {
RETURN_THROWS();
}
}
PHP_FUNCTION(compact)
{
zval *indexes;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_ARRAY(indexes)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
zend_array *arr = Z_ARR_P(indexes);
int count = zend_array_count(arr);
H3Index *set = ecalloc(count, sizeof(H3Index));
H3Index *compactedSet = ecalloc(count, sizeof(H3Index));
if (zend_array_to_h3_array(arr, set) != 0) {
zend_argument_error(H3_H3Exception_ce, 1, "must be an array of H3Index objects");
efree(set);
efree(compactedSet);
RETURN_THROWS();
}
if (compact(set, compactedSet, count) != 0) {
H3_THROW("Failed to compact", H3_ERR_CODE_COMPACT_ERROR);
efree(set);
efree(compactedSet);
RETURN_THROWS();
}
array_init(return_value);
h3_array_to_zend_array(compactedSet, count, return_value);
efree(set);
efree(compactedSet);
}
PHP_FUNCTION(uncompact)
{
zval *indexes;
zend_long res;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_ARRAY(indexes)
Z_PARAM_LONG(res)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_RES(res);
zend_array *arr = Z_ARR_P(indexes);
int count = zend_array_count(arr);
H3Index *compactedSet = ecalloc(count, sizeof(H3Index));
if (zend_array_to_h3_array(arr, compactedSet) != 0) {
zend_argument_error(H3_H3Exception_ce, 1, "must be an array of H3Index objects");
efree(compactedSet);
RETURN_THROWS();
}
int max = maxUncompactSize(compactedSet, count, res);
if (max < 0) {
H3_THROW("Unknown uncompact error", H3_ERR_CODE_UNCOMPACT_ERROR);
efree(compactedSet);
RETURN_THROWS();
}
H3Index *set = ecalloc(max, sizeof(H3Index));
if (uncompact(compactedSet, count, set, max, res) != 0) {
H3_THROW("Failed to uncompact", H3_ERR_CODE_UNCOMPACT_ERROR);
efree(compactedSet);
efree(set);
RETURN_THROWS();
}
array_init(return_value);
h3_array_to_zend_array(set, max, return_value);
efree(compactedSet);
efree(set);
}
PHP_FUNCTION(line)
{
zend_object *start;
zend_object *end;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_OBJ_OF_CLASS(start, H3_H3Index_ce)
Z_PARAM_OBJ_OF_CLASS(end, H3_H3Index_ce)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
h3_line(start, end, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
PHP_FUNCTION(distance)
{
zend_object *a;
zend_object *b;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_OBJ_OF_CLASS(a, H3_H3Index_ce)
Z_PARAM_OBJ_OF_CLASS(b, H3_H3Index_ce)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
RETURN_LONG(h3Distance(obj_to_h3(a), obj_to_h3(b)));
}
PHP_FUNCTION(indexes_are_neighbors)
{
zend_object *org;
zend_object *dest;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_OBJ_OF_CLASS(org, H3_H3Index_ce)
Z_PARAM_OBJ_OF_CLASS(dest, H3_H3Index_ce)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
H3Index origin = obj_to_h3(org);
H3Index destination = obj_to_h3(dest);
RETURN_BOOL(h3IndexesAreNeighbors(origin, destination));
}
PHP_FUNCTION(polyfill)
{
zend_object *polygon;
zend_long res;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_OBJ_OF_CLASS(polygon, H3_GeoPolygon_ce)
Z_PARAM_LONG(res)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_RES(res);
zval *geofence_val;
zval rv;
zend_object *geofence_obj;
zval *geofence_verts_val;
zend_array *geofence_verts_arr;
zval *holes_val;
zend_array *holes_arr;
geofence_val = zend_read_property(H3_GeoPolygon_ce, polygon, "geofence", sizeof("geofence") - 1, 1, &rv);
geofence_obj = Z_OBJ_P(geofence_val);
geofence_verts_val = zend_read_property(H3_GeoBoundary_ce, geofence_obj, "vertices", sizeof("vertices") - 1, 1, &rv);
geofence_verts_arr = Z_ARR_P(geofence_verts_val);
uint32_t geofence_num_verts = zend_array_count(geofence_verts_arr);
GeoCoord *geofence_verts = ecalloc(geofence_num_verts, sizeof(GeoCoord));
if (zend_array_to_geocoord_array(geofence_verts_arr, geofence_verts) != 0) {
zend_argument_error(H3_H3Exception_ce, 1, "must be valid GeoPolygon object");
efree(geofence_verts);
RETURN_THROWS();
}
holes_val = zend_read_property(H3_GeoPolygon_ce, polygon, "holes", sizeof("holes") - 1, 1, &rv);
holes_arr = Z_ARR_P(holes_val);
uint32_t num_holes = zend_array_count(holes_arr);
Geofence *holes = ecalloc(num_holes, sizeof(Geofence));
if (zend_array_to_geofence_array(holes_arr, holes) != 0) {
zend_argument_error(H3_H3Exception_ce, 1, "must be valid GeoPolygon object");
efree(geofence_verts);
efree(holes);
RETURN_THROWS();
}
GeoPolygon geo_polygon = {
.geofence = {
.numVerts = geofence_num_verts,
.verts = geofence_verts,
},
.numHoles = num_holes,
.holes = holes,
};
int max = maxPolyfillSize(&geo_polygon, res);
H3Index *out = ecalloc(max, sizeof(H3Index));
polyfill(&geo_polygon, res, out);
array_init(return_value);
h3_array_to_zend_array(out, max, return_value);
efree(geofence_verts);
efree(holes);
efree(out);
}
PHP_FUNCTION(h3_set_to_multi_polygon)
{
zval *indexes;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_ARRAY(indexes);
ZEND_PARSE_PARAMETERS_END();
// clang-format on
zend_array *indexes_arr = Z_ARR_P(indexes);
int num_indexes = zend_array_count(indexes_arr);
H3Index *set = ecalloc(num_indexes, sizeof(H3Index));
if (zend_array_to_h3_array(indexes_arr, set) != 0) {
zend_argument_error(H3_H3Exception_ce, 1, "must be an array of H3Index objects");
efree(set);
RETURN_THROWS();
}
LinkedGeoPolygon *out = emalloc(sizeof(LinkedGeoPolygon));
h3SetToLinkedGeo(set, num_indexes, out);
LinkedGeoPolygon *polygon = out;
LinkedGeoLoop *geo_loop;
LinkedGeoCoord *geo_coord;
zval polygons_val;
zval holes_val;
zval polygon_val;
zval geofence_val;
zend_object *geofence_obj;
zend_object *polygon_obj;
int geo_loop_idx;
array_init(&polygons_val);
while (polygon) {
array_init(&holes_val);
geo_loop = polygon->first;
geo_loop_idx = 0;
while (geo_loop) {
geofence_obj = geo_loop_to_geo_boundary_obj(geo_loop);
if (geo_loop_idx++ == 0) {
ZVAL_OBJ(&geofence_val, geofence_obj);
} else {
add_next_index_object(&holes_val, geofence_obj);
}
geo_loop = geo_loop->next;
}
polygon_obj = zend_objects_new(H3_GeoPolygon_ce);
object_properties_init(polygon_obj, H3_GeoPolygon_ce);
zend_update_property(H3_GeoPolygon_ce, polygon_obj, "geofence", sizeof("geofence") - 1, &geofence_val);
zend_update_property(H3_GeoPolygon_ce, polygon_obj, "holes", sizeof("holes") - 1, &holes_val);
add_next_index_object(&polygons_val, polygon_obj);
zval_ptr_dtor(&holes_val);
zval_ptr_dtor(&geofence_val);
polygon = polygon->next;
}
zend_object *result = zend_objects_new(H3_GeoMultiPolygon_ce);
object_properties_init(result, H3_GeoMultiPolygon_ce);
zend_update_property(H3_GeoMultiPolygon_ce, result, "polygons", sizeof("polygons") - 1, &polygons_val);
destroyLinkedPolygon(out);
zval_ptr_dtor(&polygons_val);
efree(set);
efree(out);
RETURN_OBJ(result);
}
PHP_FUNCTION(experimental_h3_to_local_ij)
{
zend_object *origin_obj;
zend_object *h_obj;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_OBJ_OF_CLASS(origin_obj, H3_H3Index_ce)
Z_PARAM_OBJ_OF_CLASS(h_obj, H3_H3Index_ce)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
CoordIJ ij;
experimentalH3ToLocalIj(obj_to_h3(origin_obj), obj_to_h3(h_obj), &ij);
zend_object *ij_obj = zend_objects_new(H3_CoordIJ_ce);
object_properties_init(ij_obj, H3_CoordIJ_ce);
zend_update_property_long(H3_CoordIJ_ce, ij_obj, "i", sizeof("i") - 1, ij.i);
zend_update_property_long(H3_CoordIJ_ce, ij_obj, "j", sizeof("j") - 1, ij.j);
RETURN_OBJ(ij_obj);
}
PHP_FUNCTION(experimental_local_ij_to_h3)
{
zend_object *origin_obj;
zend_object *ij_obj;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_OBJ_OF_CLASS(origin_obj, H3_H3Index_ce)
Z_PARAM_OBJ_OF_CLASS(ij_obj, H3_CoordIJ_ce)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
CoordIJ ij;
zval *prop;
zval rv;
prop = zend_read_property(H3_CoordIJ_ce, ij_obj, "i", sizeof("i") - 1, 1, &rv);
ij.i = Z_LVAL_P(prop);
prop = zend_read_property(H3_CoordIJ_ce, ij_obj, "j", sizeof("j") - 1, 1, &rv);
ij.j = Z_LVAL_P(prop);
H3Index result;
experimentalLocalIjToH3(obj_to_h3(origin_obj), &ij, &result);
RETURN_OBJ(h3_to_obj(result));
}
PHP_METHOD(H3_H3Index, __construct)
{
zend_ulong index;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(index)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_INDEX(index);
zend_update_property_long(H3_H3Index_ce, Z_OBJ_P(ZEND_THIS), "index", sizeof("index") - 1, index);
}
PHP_METHOD(H3_H3Index, fromLong)
{
zend_ulong index;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_LONG(index)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_INDEX(index);
zend_object *obj = zend_objects_new(H3_H3Index_ce);
object_properties_init(obj, H3_H3Index_ce);
zend_update_property_long(H3_H3Index_ce, obj, "index", sizeof("index") - 1, index);
RETURN_OBJ(obj);
}
PHP_METHOD(H3_H3Index, fromString)
{
zend_string *value;
// clang-format off
ZEND_PARSE_PARAMETERS_START(1, 1)
Z_PARAM_STR(value)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
H3Index index = stringToH3(ZSTR_VAL(value));
VALIDATE_H3_INDEX(index);
RETURN_OBJ(h3_to_obj(index));
}
PHP_METHOD(H3_H3Index, fromGeo)
{
zend_object *geo_obj;
zend_long res;
// clang-format off
ZEND_PARSE_PARAMETERS_START(2, 2)
Z_PARAM_OBJ_OF_CLASS(geo_obj, H3_GeoCoord_ce)
Z_PARAM_LONG(res)
ZEND_PARSE_PARAMETERS_END();
// clang-format on
VALIDATE_H3_RES(res);
GeoCoord *geo = emalloc(sizeof(GeoCoord));
obj_to_geo(geo_obj, geo);
H3Index index = geoToH3(geo, res);
efree(geo);
if (index == H3_INVALID_INDEX) {
H3_THROW("Failed to create H3 index from geo coordinates", 0);
RETURN_THROWS();
}