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+/*
+ * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WM_WAYLAND_HPP
+#define WM_WAYLAND_HPP
+
+#include "controller_hooks.hpp"
+#include "ivi-wm-client-protocol.h"
+#include "util.hpp"
+
+#include <functional>
+#include <memory>
+#include <unordered_map>
+#include <vector>
+
+/**
+ * @struct wayland_proxy
+ */
+template <typename ProxyT>
+struct wayland_proxy {
+ std::unique_ptr<ProxyT, std::function<void(ProxyT *)>> proxy;
+ wayland_proxy(wayland_proxy const &) = delete;
+ wayland_proxy &operator=(wayland_proxy const &) = delete;
+ wayland_proxy(void *p)
+ : wayland_proxy(p,
+ reinterpret_cast<void (*)(ProxyT *)>(wl_proxy_destroy)) {}
+ wayland_proxy(void *p, std::function<void(ProxyT *)> &&p_del)
+ : proxy(std::unique_ptr<ProxyT, std::function<void(ProxyT *)>>(
+ static_cast<ProxyT *>(p), p_del)) {}
+};
+
+/**
+ * namespace wl
+ */
+namespace wl {
+
+/**
+ * @struct registry
+ */
+struct registry : public wayland_proxy<struct wl_registry> {
+ typedef std::function<void(struct wl_registry *, uint32_t, uint32_t)> binder;
+ std::unordered_map<std::string, binder> bindings;
+
+ registry(registry const &) = delete;
+ registry &operator=(registry const &) = delete;
+ registry(struct wl_display *d);
+
+ void add_global_handler(char const *iface, binder bind);
+
+ // Events
+ void global_created(uint32_t name, char const *iface, uint32_t v);
+ void global_removed(uint32_t name);
+};
+
+/**
+ * @struct display
+ */
+struct display {
+ std::unique_ptr<struct wl_display, void (*)(struct wl_display *)> d;
+ struct registry r;
+
+ display(display const &) = delete;
+ display &operator=(display const &) = delete;
+ display();
+ bool ok() const;
+ void roundtrip();
+ int dispatch();
+ int dispatch_pending();
+ int read_events();
+ void flush();
+ int get_fd() const;
+ int get_error();
+
+ // Lets just proxy this for the registry
+ inline void add_global_handler(char const *iface, registry::binder bind) {
+ this->r.add_global_handler(iface, bind);
+ }
+};
+
+/**
+ * @struct output
+ */
+struct output : public wayland_proxy<struct wl_output> {
+ int width{};
+ int height{};
+ int refresh{};
+ int transform{};
+
+ output(output const &) = delete;
+ output &operator=(output const &) = delete;
+ output(struct wl_registry *r, uint32_t name, uint32_t v);
+
+ // Events
+ void geometry(int32_t x, int32_t y, int32_t pw, int32_t ph, int32_t subpel,
+ char const *make, char const *model, int32_t tx);
+ void mode(uint32_t flags, int32_t w, int32_t h, int32_t r);
+ void done();
+ void scale(int32_t factor);
+};
+} // namespace wl
+
+/**
+ * namespace compositor
+ */
+namespace compositor {
+
+struct size {
+ uint32_t w, h;
+};
+
+struct rect {
+ int32_t w, h;
+ int32_t x, y;
+};
+
+static const constexpr rect full_rect = rect{-1, -1, 0, 0};
+
+inline bool operator==(struct rect a, struct rect b) {
+ return a.w == b.w && a.h == b.h && a.x == b.x && a.y == b.y;
+}
+
+struct controller;
+
+struct controller_child {
+ struct controller *parent;
+ uint32_t id;
+
+ controller_child(controller_child const &) = delete;
+ controller_child &operator=(controller_child const &) = delete;
+ controller_child(struct controller *c, uint32_t i) : parent(c), id(i) {}
+ virtual ~controller_child() {}
+};
+
+struct surface_properties {
+ uint32_t id; // let's just save an ID here too
+ struct rect dst_rect;
+ struct rect src_rect;
+ struct size size;
+ int32_t orientation;
+ int32_t visibility;
+ float opacity;
+};
+
+/**
+ * @struct surface
+ */
+struct surface : public controller_child {
+ surface(surface const &) = delete;
+ surface &operator=(surface const &) = delete;
+ surface(uint32_t i, struct controller *c);
+
+ // Requests
+ void set_visibility(uint32_t visibility);
+ void set_source_rectangle(int32_t x, int32_t y,
+ int32_t width, int32_t height);
+ void set_destination_rectangle(int32_t x, int32_t y,
+ int32_t width, int32_t height);
+};
+
+/**
+ * @struct layer
+ */
+struct layer : public controller_child {
+ layer(layer const &) = delete;
+ layer &operator=(layer const &) = delete;
+ layer(uint32_t i, struct controller *c);
+ layer(uint32_t i, int32_t w, int32_t h, struct controller *c);
+
+ // Requests
+ void set_visibility(uint32_t visibility);
+ void set_destination_rectangle(int32_t x, int32_t y,
+ int32_t width, int32_t height);
+ void add_surface(uint32_t surface_id);
+ void remove_surface(uint32_t surface_id);
+};
+
+/**
+ * @struct screen
+ */
+struct screen : public wayland_proxy<struct ivi_wm_screen>,
+ public controller_child {
+ screen(screen const &) = delete;
+ screen &operator=(screen const &) = delete;
+ screen(uint32_t i, struct controller *c, struct wl_output *o);
+
+ void clear();
+ void screen_created(struct screen *screen, uint32_t id);
+ void set_render_order(std::vector<uint32_t> const &ro);
+};
+
+/**
+ * @struct controller
+ */
+struct controller : public wayland_proxy<struct ivi_wm> {
+ // This controller is still missing ivi-input
+
+ typedef std::unordered_map<uintptr_t, uint32_t> proxy_to_id_map_type;
+ typedef std::unordered_map<uint32_t, std::unique_ptr<struct surface>>
+ surface_map_type;
+ typedef std::unordered_map<uint32_t, std::unique_ptr<struct layer>>
+ layer_map_type;
+ typedef std::unordered_map<uint32_t, struct screen *> screen_map_type;
+ typedef std::unordered_map<uint32_t, struct surface_properties> props_map;
+
+ // HACK:
+ // The order of these member is mandatory, as when objects are destroyed
+ // they will call their parent (that's us right here!) and remove their
+ // proxy-to-id mapping. I.e. the *_proxy_to_id members need to be valid
+ // when the surfaces/layers/screens maps are destroyed. This sucks, but
+ // I cannot see a better solution w/o globals or some other horrible
+ // call-our-parent construct.
+ proxy_to_id_map_type surface_proxy_to_id;
+ proxy_to_id_map_type layer_proxy_to_id;
+ proxy_to_id_map_type screen_proxy_to_id;
+
+ props_map sprops;
+ props_map lprops;
+
+ surface_map_type surfaces;
+ layer_map_type layers;
+ screen_map_type screens;
+
+ std::unique_ptr<struct screen> screen;
+
+ size output_size;
+
+ wm::controller_hooks *chooks;
+
+ struct wl::display *display;
+
+ void add_proxy_to_sid_mapping(struct ivi_wm *p, uint32_t id);
+ void remove_proxy_to_sid_mapping(struct ivi_wm *p);
+
+ void add_proxy_to_lid_mapping(struct ivi_wm *p, uint32_t id);
+ void remove_proxy_to_lid_mapping(struct ivi_wm *p);
+
+ void add_proxy_to_id_mapping(struct wl_output *p, uint32_t id);
+ void remove_proxy_to_id_mapping(struct wl_output *p);
+
+ bool surface_exists(uint32_t id) const {
+ return this->surfaces.find(id) != this->surfaces.end();
+ }
+
+ bool layer_exists(uint32_t id) const {
+ return this->layers.find(id) != this->layers.end();
+ }
+
+ controller(struct wl_registry *r, uint32_t name, uint32_t version);
+
+ // Requests
+ void commit_changes() const {
+ ivi_wm_commit_changes(this->proxy.get());
+ }
+ void layer_create(uint32_t id, int32_t w, int32_t h);
+ void surface_create(uint32_t id);
+ void create_screen(struct wl_output *output);
+
+ // Events
+ void surface_visibility_changed(struct surface *s, int32_t visibility);
+ void surface_opacity_changed(struct surface *s, float opacity);
+ void surface_source_rectangle_changed(struct surface *s, int32_t x, int32_t y,
+ int32_t width, int32_t height);
+ void surface_destination_rectangle_changed(struct surface *s, int32_t x, int32_t y,
+ int32_t width, int32_t height);
+ void surface_created(uint32_t id);
+ void surface_destroyed(struct surface *s, uint32_t surface_id);
+ void surface_error_detected(uint32_t object_id,
+ uint32_t error_code, char const *error_text);
+ void surface_size_changed(struct surface *s, int32_t width, int32_t height);
+ void surface_stats_received(struct surface *s, uint32_t surface_id,
+ uint32_t frame_count, uint32_t pid);
+ void surface_added_to_layer(struct surface *s, uint32_t layer_id, uint32_t surface_id);
+
+ void layer_visibility_changed(struct layer *l, uint32_t layer_id,int32_t visibility);
+ void layer_opacity_changed(struct layer *l, uint32_t layer_id,float opacity);
+ void layer_source_rectangle_changed(struct layer *l, uint32_t layer_id,int32_t x, int32_t y,
+ int32_t width, int32_t height);
+ void layer_destination_rectangle_changed(struct layer *l, uint32_t layer_id,int32_t x, int32_t y,
+ int32_t width, int32_t height);
+ void layer_created(uint32_t id);
+ void layer_destroyed(struct layer *l, uint32_t layer_id);
+ void layer_error_detected(uint32_t object_id,
+ uint32_t error_code, char const *error_text);
+ void layer_configuration(struct layer *l, int32_t width, int32_t height);
+ void layer_orientation(struct layer *l, int32_t orientation);
+ void layer_screen(struct layer *l, struct wl_output *screen);
+
+};
+} // namespace compositor
+
+#endif // !WM_WAYLAND_HPP