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.
18 #include "json_helper.hpp"
22 #include "wayland.hpp"
29 #include <json-c/json.h>
32 #include <bits/signum.h>
46 result<json> file_to_json(char const *filename) {
47 std::ifstream i(filename);
49 return Err<json>("Could not open config file");
56 struct result<layer_map> load_layer_map(char const *filename) {
57 logdebug("loading IDs from %s", filename);
59 auto j = file_to_json(filename);
61 return Err<layer_map>(j.unwrap_err());
63 json jids = j.unwrap();
65 return to_layer_map(jids);
71 // ___| | __ _ ___ ___ / \ _ __ _ __ (_)_ __ ___ _ __ | |
72 // / __| |/ _` / __/ __| / _ \ | '_ \| '_ \ | | '_ ` _ \| '_ \| |
73 // | (__| | (_| \__ \__ \ / ___ \| |_) | |_) | | | | | | | | |_) | |
74 // \___|_|\__,_|___/___/ /_/ \_\ .__/| .__/ |_|_| |_| |_| .__/|_|
76 App::App(wl::display *d)
85 pending_events(false),
87 assert(g_app == nullptr);
92 auto l = load_layer_map(
93 this->config.get_string("layers.json").value().c_str());
95 this->layers = l.unwrap();
97 logerror("%s", l.err().value());
100 } catch (std::exception &e) {
101 logerror("Loading of configuration failed: %s", e.what());
105 App::~App() { g_app = nullptr; }
108 if (!this->display->ok()) {
112 if (this->layers.mapping.empty()) {
113 logerror("No surface -> layer mapping loaded");
117 this->display->add_global_handler(
118 "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
119 this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
122 this->display->add_global_handler(
123 "ivi_controller", [this](wl_registry *r, uint32_t name, uint32_t v) {
125 std::make_unique<struct genivi::controller>(r, name, v);
127 // Init controller hooks
128 this->controller->chooks = &this->chooks;
130 // XXX: This protocol needs the output, so lets just add our mapping
132 this->controller->add_proxy_to_id_mapping(
133 this->outputs.back()->proxy.get(),
134 wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
135 this->outputs.back()->proxy.get())));
138 // First level objects
139 this->display->roundtrip();
140 // Second level objects
141 this->display->roundtrip();
142 // Third level objects
143 this->display->roundtrip();
145 return init_layers();
148 int App::dispatch_events() {
149 if (this->dispatch_events() == 0) {
153 int ret = this->display->dispatch();
155 logerror("wl_display_dipatch() returned error %d",
156 this->display->get_error());
159 this->display->flush();
164 int App::dispatch_pending_events() {
165 if (this->pop_pending_events()) {
166 this->display->dispatch_pending();
172 bool App::pop_pending_events() {
174 return this->pending_events.compare_exchange_strong(
175 x, false, std::memory_order_consume);
178 void App::set_pending_events() {
179 this->pending_events.store(true, std::memory_order_release);
182 optional<int> App::lookup_id(char const *name) {
183 return this->id_alloc.lookup(std::string(name));
185 optional<std::string> App::lookup_name(int id) {
186 return this->id_alloc.lookup(id);
190 // (_)_ __ (_) |_ | | __ _ _ _ ___ _ _| |_ / /\ \
191 // | | '_ \| | __| | |/ _` | | | |/ _ \| | | | __| | | |
192 // | | | | | | |_ | | (_| | |_| | (_) | |_| | |_| | | |
193 // |_|_| |_|_|\__|___|_|\__,_|\__, |\___/ \__,_|\__| | | |
194 // |_____| |___/ \_\/_/
195 int App::init_layers() {
196 if (!this->controller) {
197 logerror("ivi_controller global not available");
201 if (this->outputs.empty()) {
202 logerror("no output was set up!");
206 auto &c = this->controller;
208 auto &o = this->outputs.front();
209 auto &s = c->screens.begin()->second;
210 auto &layers = c->layers;
212 // XXX: Write output dimensions to ivi controller...
213 c->output_size = genivi::size{uint32_t(o->width), uint32_t(o->height)};
221 // Quick and dirty setup of layers
222 // XXX: This likely needs to be sorted by order (note, we don't (yet?)
223 // do any zorder arrangement).
224 for (auto const &i : this->layers.mapping) {
225 c->layer_create(i.layer_id, o->width, o->height);
226 auto &l = layers[i.layer_id];
227 l->set_destination_rectangle(0, 0, o->width, o->height);
228 l->set_visibility(1);
230 "Setting up layer %s (%d) for surfaces %d-%d and role match \"%s\"",
231 i.name.c_str(), i.layer_id, i.id_min, i.id_max, i.role.c_str());
234 // Add layers to screen (XXX: are they sorted correctly?)
235 s->set_render_order(this->layers.layers);
237 this->layout_commit();
244 #ifdef WE_LIKE_NOT_TO_USE_THIS
245 // This can fix the HomeScreen...
246 void redraw_fix(App *app, std::unique_ptr<genivi::surface> &s, int x, int y,
248 { // XXX: Work around weston redraw issues
249 // trigger an update by changing the source dimensions!
250 s->set_configuration(w + 1, h);
251 s->set_source_rectangle(0, 0, w + 1, h);
252 s->set_destination_rectangle(x, y, w + 1, h);
253 app->controller->commit_changes();
254 app->display->roundtrip();
256 // wait some time, for the process to do its thing...
257 using namespace std::chrono_literals;
258 std::this_thread::sleep_for(100ms);
260 // Set a different size then what we actually want.
261 s->set_configuration(w, h);
262 s->set_source_rectangle(0, 0, w, h);
263 s->set_destination_rectangle(x, y, w, h);
264 app->controller->commit_changes();
265 app->display->roundtrip();
272 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
273 if (!this->controller->surface_exists(surface_id)) {
274 logerror("Surface %d does not exist", surface_id);
278 auto o_layer_id = this->layers.get_layer_id(surface_id);
281 logerror("Surface %d is not associated with any layer!", surface_id);
285 uint32_t layer_id = *o_layer_id;
287 auto const &layer = this->layers.get_layer(layer_id);
288 auto rect = layer.value().rect;
289 auto &s = this->controller->surfaces[surface_id];
296 // less-than-0 values refer to MAX + 1 - $VALUE
297 // e.g. MAX is either screen width or height
299 w = this->controller->output_size.w + 1 + w;
302 h = this->controller->output_size.h + 1 + h;
305 if (sub_surface_id) {
306 if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
308 "surface_set_layout: layers of surfaces (%d and %d) don't match!",
309 surface_id, *sub_surface_id);
316 // split along major axis
325 auto &ss = this->controller->surfaces[*sub_surface_id];
327 logdebug("surface_set_layout for sub surface %u on layer %u",
328 *sub_surface_id, layer_id);
330 // configure surface to wxh dimensions
331 ss->set_configuration(w, h);
332 // set source reactangle, even if we should not need to set it.
333 ss->set_source_rectangle(0, 0, w, h);
334 // set destination to the display rectangle
335 ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
338 logdebug("surface_set_layout for surface %u on layer %u", surface_id,
341 // configure surface to wxh dimensions
342 s->set_configuration(w, h);
343 // set source reactangle, even if we should not need to set it.
344 s->set_source_rectangle(0, 0, w, h);
345 // set destination to the display rectangle
346 s->set_destination_rectangle(x, y, w, h);
348 // redraw_fix(this, s, x, y, w, h);
349 // redraw_fix(this, ss, x+x_off, y+y_off, w, h);
351 logdebug("Surface %u now on layer %u with rect { %d, %d, %d, %d }",
352 surface_id, layer_id, x, y, w, h);
355 void App::layout_commit() {
356 this->controller->commit_changes();
357 this->display->flush();
360 char const *App::api_activate_surface(char const *drawing_name) {
362 auto const &surface_id = this->lookup_id(drawing_name);
365 return "Surface does not exist";
368 if (!this->controller->surface_exists(*surface_id)) {
369 return "Surface does not exist in controller!";
372 auto layer_id = this->layers.get_layer_id(*surface_id);
375 return "Surface is not on any layer!";
378 auto o_state = *this->layers.get_layout_state(*surface_id);
381 return "Could not find layer for surface";
384 struct LayoutState &state = *o_state;
386 // disable layers that are above our current layer
387 for (auto const &l : this->layers.mapping) {
388 if (l.layer_id <= *layer_id) {
393 if (l.state.main != -1) {
394 this->deactivate(l.state.main);
399 if (l.state.sub != -1) {
400 this->deactivate(l.state.sub);
406 this->layout_commit();
410 if (state.main == *surface_id || state.sub == *surface_id) {
411 return "Surface already active";
415 if (state.main == -1) {
417 state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
418 this->surface_set_layout(*surface_id);
419 // XXX do we need to activate after enddraw?
420 this->activate(*surface_id);
422 this->layout_commit();
423 this->emit_syncdraw(drawing_name);
424 this->enqueue_flushdraw(state.main);
427 bool can_split = this->can_split(state, *surface_id);
432 LayoutState{state.main, *surface_id},
433 [&] (LayoutState const &nl) {
435 std::move(*this->lookup_name(state.main));
437 this->surface_set_layout(state.main, surface_id);
438 this->activate(*surface_id);
439 if (state.sub != -1) {
440 this->deactivate(state.sub);
444 this->layout_commit();
445 this->emit_syncdraw(drawing_name);
446 this->emit_syncdraw(main.c_str());
447 this->enqueue_flushdraw(state.main);
448 this->enqueue_flushdraw(state.sub);
452 state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
453 this->surface_set_layout(*surface_id);
454 this->deactivate(state.main);
455 this->activate(*surface_id);
456 if (state.sub != -1) {
457 this->deactivate(state.sub);
461 this->layout_commit();
462 this->emit_syncdraw(drawing_name);
463 this->enqueue_flushdraw(state.main);
472 char const *App::api_deactivate_surface(char const *drawing_name) {
474 auto const &surface_id = this->lookup_id(drawing_name);
477 return "Surface does not exist";
480 if (*surface_id == this->layers.main_surface) {
481 return "Cannot deactivate main_surface";
484 auto o_state = *this->layers.get_layout_state(*surface_id);
487 return "Could not find layer for surface";
490 struct LayoutState &state = *o_state;
492 if (state.main == -1) {
493 return "No surface active";
496 // XXX: check against main_surface, main_surface_name is the configuration
498 if (*surface_id == this->layers.main_surface) {
499 logdebug("Refusing to deactivate main_surface %d", *surface_id);
503 if (state.main == *surface_id) {
504 if (state.sub != -1) {
506 state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
507 std::string sub = std::move(*this->lookup_name(state.sub));
509 this->deactivate(*surface_id);
510 this->surface_set_layout(state.sub);
513 this->layout_commit();
514 this->emit_syncdraw(sub.c_str());
515 this->enqueue_flushdraw(state.sub);
518 this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
519 this->deactivate(*surface_id);
521 this->layout_commit();
524 } else if (state.sub == *surface_id) {
526 state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
527 std::string main = std::move(*this->lookup_name(state.main));
529 this->deactivate(*surface_id);
530 this->surface_set_layout(state.main);
533 this->layout_commit();
534 this->emit_syncdraw(main.c_str());
535 this->enqueue_flushdraw(state.main);
538 return "Surface is not active";
544 void App::enqueue_flushdraw(int surface_id) {
545 this->check_flushdraw(surface_id);
546 logdebug("Enqueuing EndDraw for surface_id %d", surface_id);
547 this->pending_end_draw.push_back(surface_id);
550 void App::check_flushdraw(int surface_id) {
551 auto i = std::find(std::begin(this->pending_end_draw),
552 std::end(this->pending_end_draw), surface_id);
553 if (i != std::end(this->pending_end_draw)) {
554 auto n = this->lookup_name(surface_id);
555 logerror("Application %s (%d) has pending EndDraw call(s)!",
556 n ? n->c_str() : "unknown-name", surface_id);
557 std::swap(this->pending_end_draw[std::distance(
558 std::begin(this->pending_end_draw), i)],
559 this->pending_end_draw.back());
560 this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
564 char const *App::api_enddraw(char const *drawing_name) {
565 for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
566 auto n = this->lookup_name(this->pending_end_draw[i]);
567 if (n && *n == drawing_name) {
568 std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
569 this->pending_end_draw.resize(iend - 1);
570 // XXX: Please tell the compositor to thaw the surface...
571 this->emit_flushdraw(drawing_name);
575 return "No EndDraw pending for surface";
578 void App::api_ping() { this->dispatch_pending_events(); }
581 // _ __ _ __ _____ _(_) ___ __| | | ____|_ _____ _ __ | |_ ___
582 // | '_ \| '__/ _ \ \/ / |/ _ \/ _` | | _| \ \ / / _ \ '_ \| __/ __|
583 // | |_) | | | (_) > <| | __/ (_| | | |___ \ V / __/ | | | |_\__ \
584 // | .__/|_| \___/_/\_\_|\___|\__,_| |_____| \_/ \___|_| |_|\__|___/
586 void App::surface_created(uint32_t surface_id) {
587 auto layer_id = this->layers.get_layer_id(surface_id);
589 logdebug("Newly created surfce %d is not associated with any layer!",
594 logdebug("surface_id is %u, layer_id is %u", surface_id, *layer_id);
596 this->controller->layers[*layer_id]->add_surface(
597 this->controller->surfaces[surface_id].get());
599 // activate the main_surface right away
600 if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
601 logdebug("Activating main_surface (%d)", surface_id);
603 this->api_activate_surface(
604 this->lookup_name(surface_id).value_or("unknown-name").c_str());
608 void App::surface_removed(uint32_t surface_id) {
609 logdebug("surface_id is %u", surface_id);
611 // We cannot normally deactivate the main_surface, so be explicit
613 if (int(surface_id) == this->layers.main_surface) {
614 this->deactivate_main_surface();
616 auto drawing_name = this->lookup_name(surface_id);
618 this->api_deactivate_surface(drawing_name->c_str());
622 this->id_alloc.remove_id(surface_id);
623 this->layers.remove_surface(surface_id);
626 void App::emit_activated(char const *label) {
627 this->api.send_event("activated", label);
630 void App::emit_deactivated(char const *label) {
631 this->api.send_event("deactivated", label);
634 void App::emit_syncdraw(char const *label) {
635 this->api.send_event("syncdraw", label);
638 void App::emit_flushdraw(char const *label) {
639 this->api.send_event("flushdraw", label);
642 void App::emit_visible(char const *label, bool is_visible) {
643 this->api.send_event(is_visible ? "visible" : "invisible", label);
646 void App::emit_invisible(char const *label) {
647 return emit_visible(label, false);
650 void App::emit_visible(char const *label) { return emit_visible(label, true); }
652 result<int> App::api_request_surface(char const *drawing_name) {
653 auto lid = this->layers.get_layer_id(std::string(drawing_name));
655 // XXX: to we need to put these applications on the App layer?
656 return Err<int>("Drawing name does not match any role");
659 auto rname = this->lookup_id(drawing_name);
661 // name does not exist yet, allocate surface id...
662 auto id = int(this->id_alloc.generate_id(drawing_name));
663 this->layers.add_surface(id, *lid);
665 // XXX: we set the main_surface[_name] here and now,
666 // not sure if we want this, but it worked so far.
667 if (!this->layers.main_surface_name.empty() &&
668 this->layers.main_surface_name == drawing_name) {
669 this->layers.main_surface = id;
670 logdebug("Set main_surface id to %u", id);
676 // Check currently registered drawing names if it is already there.
677 return Err<int>("Surface already present");
680 void App::activate(int id) {
681 auto ip = this->controller->sprops.find(id);
682 if (ip != this->controller->sprops.end() && ip->second.visibility == 0) {
683 this->controller->surfaces[id]->set_visibility(1);
685 this->lookup_name(id).value_or("unknown-name").c_str();
686 this->emit_activated(label);
687 this->emit_visible(label);
691 void App::deactivate(int id) {
692 auto ip = this->controller->sprops.find(id);
693 if (ip != this->controller->sprops.end() && ip->second.visibility != 0) {
694 this->controller->surfaces[id]->set_visibility(0);
696 this->lookup_name(id).value_or("unknown-name").c_str();
697 this->emit_deactivated(label);
698 this->emit_invisible(label);
702 void App::deactivate_main_surface() {
703 this->layers.main_surface = -1;
704 this->api_deactivate_surface(this->layers.main_surface_name.c_str());
707 bool App::can_split(struct LayoutState const &state, int new_id) {
708 if (state.main != -1 && state.main != new_id) {
709 auto new_id_layer = this->layers.get_layer_id(new_id).value();
710 auto current_id_layer = this->layers.get_layer_id(state.main).value();
712 // surfaces are on separate layers, don't bother.
713 if (new_id_layer != current_id_layer) {
717 std::string const &new_id_str = this->lookup_name(new_id).value();
718 std::string const &cur_id_str = this->lookup_name(state.main).value();
720 auto const &layer = this->layers.get_layer(new_id_layer);
722 logdebug("layer info name: %s", layer->name.c_str());
724 if (layer->layouts.empty()) {
728 for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
729 logdebug("%d main_match '%s'", new_id_layer, i->main_match.c_str());
730 auto rem = std::regex(i->main_match);
731 if (std::regex_match(cur_id_str, rem)) {
732 // build the second one only if the first already matched
733 logdebug("%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
734 auto res = std::regex(i->sub_match);
735 if (std::regex_match(new_id_str, res)) {
736 logdebug("layout matched!");
746 void App::try_layout(struct LayoutState &state,
747 struct LayoutState const &new_layout,
748 std::function<void(LayoutState const &nl)> apply) {
749 if (this->policy.layout_is_valid(new_layout)) {
755 // ___ ___ _ __ | |_ _ __ ___ | | | ___ _ __ | |__ ___ ___ | | _____
756 // / __/ _ \| '_ \| __| '__/ _ \| | |/ _ \ '__|| '_ \ / _ \ / _ \| |/ / __|
757 // | (_| (_) | | | | |_| | | (_) | | | __/ | | | | | (_) | (_) | <\__ \
758 // \___\___/|_| |_|\__|_| \___/|_|_|\___|_|___|_| |_|\___/ \___/|_|\_\___/
760 void controller_hooks::surface_created(uint32_t surface_id) {
761 this->app->surface_created(surface_id);
764 void controller_hooks::surface_removed(uint32_t surface_id) {
765 this->app->surface_removed(surface_id);
768 void controller_hooks::surface_visibility(uint32_t surface_id, uint32_t v) {
771 void controller_hooks::surface_destination_rectangle(uint32_t surface_id, uint32_t x, uint32_t y, uint32_t w, uint32_t h) {