void json_set_value(const jsonvalue& json, frame3f& value) {
value = identity_frame3f;
if(json.object_contains("from") or json.object_contains("to") or json.object_contains("up")) {
auto from = z3f, to = zero3f, up = y3f;
if(json.object_contains("from")) json_set_value(json.object_element("from"), from);
if(json.object_contains("to")) json_set_value(json.object_element("to"), to);
if(json.object_contains("up")) json_set_value(json.object_element("up"), up);
value = lookat_frame(from, to, up);
} else {
if(json.object_contains("o")) json_set_value(json.object_element("o"), value.o);
if(json.object_contains("x")) json_set_value(json.object_element("x"), value.x);
if(json.object_contains("y")) json_set_value(json.object_element("y"), value.y);
if(json.object_contains("z")) json_set_value(json.object_element("z"), value.z);
value = orthonormalize_zyx(value);
}
}
void json_set_optvalue(const jsonvalue& json, T& value, const string& name) {
if(not json.object_contains(name)) return;
json_set_value(json.object_element(name), value);
}
void json_set_value(const jsonvalue& json, vector<vector<mat4f>>& value) {
value.resize(json.array_size());
for(auto i : range(value.size())) json_set_value(json.array_element(i), value[i]);
}
static int
json_parse_object (const char **s, size_t *n, const char *objname,
size_t objsize, void *obj, const json_t *table,
size_t table_items)
{
ssr_t value;
int rc;
const json_t *element;
uint64_t int_value;
element = NULL;
if (**s != '{') {
WARN("Expected '{' at start of object parsing\n"
"Current position: %.*s\n",
(int)*n, *s);
return (-1);
}
element = NULL;
value.size = 0;
value.data = NULL;
(*s)++; (*n)--;
while (*n) {
if (**s == '"') {
rc = json_parse_string(s, n, &value);
if (rc == -1) {
WARN("Value name for object %s failed at: %.*s\n",
objname, (int)*n, *s);
}
if (element) {
rc = json_set_value(obj, element, &value);
if (rc == -1) {return (-1);}
element = NULL;
} else {
element = json_find_element(&value, table, table_items);
if (!element) {
WARN("Could not find element '%.*s' in object '%s'\n",
(int)value.size, value.data, objname);
return (-1);
}
}
} else if (**s == '{') {
if (element && element->type == JSON_ELEMENT_STRUCT_POINTER) {
rc = json_parse_object(s, n, element->name, element->size,
*(void**)ELEMENTAT(obj, element->offset),
element->json, element->json_size);
if (rc == -1) {
return (-1);
}
} else if (element &&
element->type == JSON_ELEMENT_STRUCT_EMBEDDED) {
rc = json_parse_object(s, n, element->name, element->size,
(void*)ELEMENTAT(obj, element->offset),
element->json, element->json_size);
if (rc == -1) {
return (-1);
}
} else {
WARN("Unexpected '{' at %.*s\n",
(int)*n, *s);
return (-1);
}
} else if (**s == '}') {
return (0);
} else if (**s >= '0' && **s <= '9') {
if (!element) {
WARN("Unexpected digit at %.*s",
(int)*n, *s);
return (-1);
}
json_parse_uint64(s, n, &int_value);
rc = json_set_int_value(obj, element, int_value);
if (rc == -1) {return (-1);}
element = NULL;
}
(*s)++; (*n)--;
}
return (0);
}
