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.
17 #ifndef TMCAGLWM_APP_HPP
18 #define TMCAGLWM_APP_HPP
20 #include <json-c/json.h>
24 #include <unordered_map>
25 #include <unordered_set>
26 #include <experimental/optional>
28 #include "afb_binding_api.hpp"
30 #include "controller_hooks.hpp"
34 #include "wayland.hpp"
46 using std::experimental::optional;
49 constexpr static const unsigned id_shift = 22;
50 constexpr static const unsigned id_mask = (1 << id_shift) - 1;
54 // Surfaces that where requested but not yet created
55 std::unordered_map<unsigned, std::string> id2name;
56 // std::unordered_set<unsigned> pending_surfaces;
57 std::unordered_map<std::string, unsigned> name2id;
59 id_allocator(id_allocator const &) = delete;
60 id_allocator(id_allocator &&) = delete;
61 id_allocator &operator=(id_allocator const &);
62 id_allocator &operator=(id_allocator &&) = delete;
64 // Insert and return a new ID
65 unsigned generate_id(std::string const &name) {
66 unsigned sid = this->next++;
67 this->id2name[sid] = name;
68 // this->pending_surfaces.insert({sid});
69 this->name2id[name] = sid;
70 logdebug("allocated new id %u with name %s", sid, name.c_str());
74 // Lookup by ID or by name
75 optional<unsigned> lookup(std::string const &name) const {
76 auto i = this->name2id.find(name);
77 return i == this->name2id.end() ? nullopt : optional<unsigned>(i->second);
80 optional<std::string> lookup(unsigned id) const {
81 auto i = this->id2name.find(id);
82 return i == this->id2name.end() ? nullopt
83 : optional<std::string>(i->second);
86 // Remove a surface id and name
87 // I don't think I will need this, do I?
88 void remove_id(std::string const &name) {
89 auto i = this->name2id.find(name);
90 if (i != this->name2id.end()) {
91 this->id2name.erase(i->second);
92 this->name2id.erase(i);
96 void remove_id(unsigned id) {
97 auto i = this->id2name.find(id);
98 if (i != this->id2name.end()) {
99 this->name2id.erase(i->second);
100 this->id2name.erase(i);
107 LayoutNone, // Not useful...
112 enum States state{LayoutSingle};
116 bool operator==(const LayoutState &b) const {
117 return state == b.state && main == b.main && sub == b.sub;
119 bool operator!=(const LayoutState &b) const {
120 return !(*this == b);
125 struct binding_api api;
126 struct controller_hooks chooks;
128 // This is the one thing, we do not own.
129 struct wl::display *display;
131 std::unique_ptr<struct genivi::controller> controller;
132 std::vector<std::unique_ptr<struct wl::output>> outputs;
134 struct config config;
136 // track current layouts separately
137 std::map<int, struct LayoutState> layouts;
140 // ID allocation and proxy methods for lookup
141 struct id_allocator id_alloc;
142 optional<unsigned> lookup_id(char const *name) {
143 return this->id_alloc.lookup(std::string(name));
145 optional<std::string> lookup_name(unsigned id) {
146 return this->id_alloc.lookup(id);
149 struct LayoutState state;
151 std::atomic<bool> pending_events;
153 explicit App(wl::display *d);
156 App(App const &) = delete;
157 App &operator=(App const &) = delete;
158 App(App &&) = delete;
159 App &operator=(App &&) = delete;
164 int dispatch_events();
166 void surface_set_layout_full(uint32_t surface_id);
167 void surface_set_layout_split(uint32_t surface_id, uint32_t sub_surface_id);
169 // Allocate a surface ID for this role
170 result<int> request_surface(char const *drawing_name);
172 // Activate (i.e. make visible, if allowed!) a surface
173 char const *activate_surface(char const *drawing_name);
174 char const *deactivate_surface(char const *drawing_name);
176 // Events from the compositor we are interested in
177 void surface_created(uint32_t surface_id);
178 void surface_removed(uint32_t surface_id);
180 // TMC WM Events to clients
181 void emit_activated(char const *label);
182 void emit_deactivated(char const *label);
183 void emit_syncdraw(char const *label);
184 void emit_flushdraw(char const *label);
185 void emit_visible(char const *label, bool is_visible);
186 void emit_invisible(char const *label);
187 void emit_visible(char const *label);
189 void activate(unsigned id);
190 void deactivate(unsigned id);
192 bool can_split(unsigned new_id);
197 #endif // TMCAGLWM_APP_HPP