2 * Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 #include "json_helper.hpp"
26 using json = nlohmann::json;
28 layer::layer(nlohmann::json const &j) {
29 if (j["type"] == "range") {
30 this->id_min = j["first_surface_id"];
31 this->id_max = j["last_surface_id"];
33 this->id_min = this->id_max = j["surface_id"];
35 this->role = j["role"];
36 this->name = j["name"];
37 this->layer_id = j["layer_id"];
38 this->rect = genivi::full_rect;
39 if (j["area"]["type"] == "rect") {
40 auto jr = j["area"]["rect"];
41 this->rect = genivi::rect{
42 jr["width"], jr["height"], jr["x"], jr["y"],
47 struct result<struct layer_map> to_layer_map(nlohmann::json const &j) {
50 auto m = j["mappings"];
52 std::transform(std::cbegin(m), std::cend(m),
53 std::inserter(stl.mapping, stl.mapping.end()),
54 [](nlohmann::json const &j) { return layer(j); });
56 // XXX: add sanity checks here?
57 // * check for double IDs
58 // * check for double names/roles
60 stl.layers.reserve(m.size());
62 std::cbegin(stl.mapping), std::cend(stl.mapping),
63 std::back_inserter(stl.layers), [&stl](struct layer const &k) {
64 stl.roles.emplace_back(std::make_pair(k.role, k.layer_id));
65 return unsigned(k.layer_id);
68 // XXX need to sort layers?
69 for (auto i : stl.mapping) {
71 return Err<struct layer_map>("Found mapping w/o name");
73 if (i.layer_id == -1 || i.id_min == -1 || i.id_max == -1) {
74 return Err<struct layer_map>("Found invalid/unset IDs in mapping");
78 auto msi = j.find("main_surface");
80 stl.main_surface_name = msi->value("surface_role", "");
82 stl.main_surface_name.empty() ? int((*msi)["surface_id"]) : -1;
86 auto jtests = j.value("tests", json());
88 if (!jtests.empty()) {
89 logdebug("Embedded tests...");
90 std::vector<std::pair<int, int>> tests;
91 tests.reserve(jtests.size());
92 std::transform(std::cbegin(jtests), std::cend(jtests),
93 std::back_inserter(tests), [](json const &j) {
94 return std::make_pair(j["surface_id"],
95 j["expect_layer_id"]);
98 for (auto sid : tests) {
99 int lid = stl.get_layer_id(sid.first).value_or(-1);
100 logdebug("this=%d, that=%d, expect=%d", sid.first, lid, sid.second);
101 if (lid != sid.second) {
102 return Err<layer_map>("ID Map embedded test failed!");
108 } catch (std::exception &e) {
109 return Err<struct layer_map>(e.what());
113 // Helper to allow std::lower_bound with a int key only
115 operator<(struct layer const &a, int b) {
120 optional<layer> get_surface_id_to_layer(struct layer_map const *s2l,
122 auto i = std::lower_bound(std::cbegin(s2l->mapping), std::cend(s2l->mapping),
125 if (i != s2l->mapping.end()) {
126 // std::less only checks for layer::id_max, so check
127 // that we are actually inside of an interval here.
128 if (i->id_min <= surface_id) {
129 return optional<layer>(*i);
137 optional<int> layer_map::get_layer_id(int surface_id) {
138 auto e = get_surface_id_to_layer(this, surface_id);
140 auto i = this->surfaces.find(surface_id);
141 if (i != this->surfaces.end()) {
142 return optional<int>(int(i->second));
146 return optional<int>(e->layer_id);
149 optional<int> layer_map::get_layer_id(std::string const &role) {
150 for (auto const &r : this->roles) {
151 auto re = std::regex(r.first);
152 if (std::regex_match(role, re)) {
153 logdebug("role %s matches layer %d", role.c_str(), r.second);
154 return optional<int>(r.second);
157 logdebug("role %s does NOT match any layer", role.c_str());
161 optional<genivi::rect> layer_map::get_layer_rect(int surface_id) {
162 auto e = get_surface_id_to_layer(this, surface_id);
163 return e ? optional<genivi::rect>(e->rect) : nullopt;
166 json layer::to_json() const {
167 auto is_full = this->rect == genivi::full_rect;
171 r = {{"type", "full"}};
173 r = {{"type", "rect"},
175 {{"x", this->rect.x},
177 {"width", this->rect.w},
178 {"height", this->rect.h}}}};
182 {"id_min", this->id_min},
183 {"id_max", this->id_max},
184 {"name", this->name},
185 {"layer_id", this->layer_id},
190 json layer_map::to_json() const {
192 for (auto const &i : this->mapping) {
193 j.push_back(i.to_json());