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)
86 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();
173 // (_)_ __ (_) |_ | | __ _ _ _ ___ _ _| |_ / /\ \
174 // | | '_ \| | __| | |/ _` | | | |/ _ \| | | | __| | | |
175 // | | | | | | |_ | | (_| | |_| | (_) | |_| | |_| | | |
176 // |_|_| |_|_|\__|___|_|\__,_|\__, |\___/ \__,_|\__| | | |
177 // |_____| |___/ \_\/_/
178 int App::init_layers() {
179 if (!this->controller) {
180 logerror("ivi_controller global not available");
184 if (this->outputs.empty()) {
185 logerror("no output was set up!");
189 auto &c = this->controller;
191 auto &o = this->outputs.front();
192 auto &s = c->screens.begin()->second;
193 auto &layers = c->layers;
195 // XXX: Write output dimensions to ivi controller...
196 c->output_size = genivi::size{uint32_t(o->width), uint32_t(o->height)};
204 // Quick and dirty setup of layers
205 // XXX: This likely needs to be sorted by order (note, we don't (yet?)
206 // do any zorder arrangement).
207 for (auto const &i : this->layers.mapping) {
208 c->layer_create(i.layer_id, o->width, o->height);
209 auto &l = layers[i.layer_id];
210 l->set_destination_rectangle(0, 0, o->width, o->height);
211 l->set_visibility(1);
213 "Setting up layer %s (%d) for surfaces %d-%d and role match \"%s\"",
214 i.name.c_str(), i.layer_id, i.id_min, i.id_max, i.role.c_str());
215 this->layouts[l->id] = LayoutState{};
218 // Add layers to screen (XXX: are they sorted correctly?)
219 s->set_render_order(this->layers.layers);
223 this->display->flush();
230 #ifdef WE_LIKE_NOT_TO_USE_THIS
231 // This can fix the HomeScreen...
232 void redraw_fix(App *app, std::unique_ptr<genivi::surface> &s, int x, int y,
234 { // XXX: Work around weston redraw issues
235 // trigger an update by changing the source dimensions!
236 s->set_configuration(w + 1, h);
237 s->set_source_rectangle(0, 0, w + 1, h);
238 s->set_destination_rectangle(x, y, w + 1, h);
239 app->controller->commit_changes();
240 app->display->roundtrip();
242 // wait some time, for the process to do its thing...
243 using namespace std::chrono_literals;
244 std::this_thread::sleep_for(100ms);
246 // Set a different size then what we actually want.
247 s->set_configuration(w, h);
248 s->set_source_rectangle(0, 0, w, h);
249 s->set_destination_rectangle(x, y, w, h);
250 app->controller->commit_changes();
251 app->display->roundtrip();
258 void App::surface_set_layout_full(uint32_t surface_id) {
259 if (!this->controller->surface_exists(surface_id)) {
260 logerror("Surface %d does not exist", int(surface_id));
264 auto o_layer_id = this->layers.get_layer_id(surface_id);
267 logerror("Surface %d is not associated with any layer!", int(surface_id));
271 uint32_t layer_id = o_layer_id.value();
272 logdebug("surface_set_layout for surface %u on layer %u", surface_id,
275 auto const &layer = this->layers.get_layer(layer_id);
276 auto rect = layer.value().rect;
277 auto &s = this->controller->surfaces[surface_id];
284 // less-than-0 values refer to MAX + 1 - $VALUE
285 // e.g. MAX is either screen width or height
287 w = this->controller->output_size.w + 1 + w;
290 h = this->controller->output_size.h + 1 + h;
293 // configure surface to wxh dimensions
294 s->set_configuration(w, h);
296 // set source reactangle, even if we should not need to set it.
297 s->set_source_rectangle(0, 0, w, h);
299 // set destination to the display rectangle
300 s->set_destination_rectangle(x, y, w, h);
302 // redraw_fix(this, s, x, y, w, h);
304 logdebug("Surface %u now with rect { %d, %d, %d, %d }", surface_id, x, y, w,
308 void App::surface_set_layout_split(uint32_t surface_id,
309 uint32_t sub_surface_id) {
310 if (!this->controller->surface_exists(surface_id)) {
311 logerror("Surface %d does not exist", int(surface_id));
315 auto o_layer_id = this->layers.get_layer_id(surface_id);
318 logerror("Surface %d is not associated with any layer!", int(surface_id));
322 uint32_t layer_id = o_layer_id.value();
323 logdebug("surface_set_layout for surface %u on layer %u", surface_id,
326 auto const &layer = this->layers.get_layer(layer_id);
327 auto rect = layer.value().rect;
328 auto &s = this->controller->surfaces[surface_id];
329 auto &ss = this->controller->surfaces[sub_surface_id];
336 // less-than-0 values refer to MAX + 1 - $VALUE
337 // e.g. MAX is either screen width or height
339 w = this->controller->output_size.w + 1 + w;
342 h = this->controller->output_size.h + 1 + h;
348 // split along major axis
357 // configure surface to wxh dimensions
358 s->set_configuration(w, h);
359 // set source reactangle, even if we should not need to set it.
360 s->set_source_rectangle(0, 0, w, h);
361 // set destination to the display rectangle
362 s->set_destination_rectangle(x, y, w, h);
364 // configure surface to wxh dimensions
365 ss->set_configuration(w, h);
366 // set source reactangle, even if we should not need to set it.
367 ss->set_source_rectangle(0, 0, w, h);
368 // set destination to the display rectangle
369 ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
371 // redraw_fix(this, s, x, y, w, h);
372 // redraw_fix(this, ss, x+x_off, y+y_off, w, h);
374 logdebug("Surface %u now on layer %u with rect { %d, %d, %d, %d }",
375 surface_id, layer_id, x, y, w, h);
378 char const *App::api_activate_surface(char const *drawing_name) {
380 auto const &surface_id = this->lookup_id(drawing_name);
383 return "Surface does not exist";
386 if (!this->controller->surface_exists(*surface_id)) {
387 return "Surface does not exist in controller!";
390 auto layer_id = this->layers.get_layer_id(*surface_id);
393 return "Surface is not on any layer!";
396 auto o_state = *this->layers.get_layout_state(*surface_id);
399 return "Could not find layer for surface";
402 struct LayoutState &state = *o_state;
404 // disable layers that are above our current layer
405 for (auto const &l : this->layers.mapping) {
406 if (l.layer_id <= *layer_id) {
411 if (l.state.main != -1) {
412 this->deactivate(l.state.main);
417 if (l.state.sub != -1) {
418 this->deactivate(l.state.sub);
423 l.state.s = LayoutState::Single;
426 this->controller->commit_changes();
427 this->display->flush();
431 if (state.main == *surface_id || state.sub == *surface_id) {
432 return "Surface already active";
435 // This should involve a policy check, but as we do not (yet) have
436 // such a thing, we will just switch to this surface.
437 // XXX: input focus missing!!1
439 if (state.main == -1) {
440 this->emit_syncdraw(drawing_name);
442 this->surface_set_layout_full(*surface_id);
443 this->activate(*surface_id);
444 state.main = *surface_id;
446 state.s = LayoutState::Single;
448 this->enqueue_flushdraw(state.main);
450 bool can_split = this->can_split(state, *surface_id);
452 if (state.sub == -1) {
454 if (state.main != *surface_id) {
455 std::string main = std::move(*this->lookup_name(state.main));
456 this->emit_syncdraw(drawing_name);
457 this->emit_syncdraw(main.c_str());
459 this->surface_set_layout_split(state.main, *surface_id);
460 this->activate(*surface_id);
461 state.sub = *surface_id;
463 this->enqueue_flushdraw(state.main);
464 this->enqueue_flushdraw(state.sub);
467 this->emit_syncdraw(drawing_name);
469 this->surface_set_layout_full(*surface_id);
470 this->deactivate(state.main);
471 this->activate(*surface_id);
472 this->deactivate(state.sub);
473 state.main = *surface_id;
475 state.s = LayoutState::Single;
477 this->enqueue_flushdraw(state.main);
483 this->controller->commit_changes();
484 this->display->flush();
490 char const *App::api_deactivate_surface(char const *drawing_name) {
492 auto const &surface_id = this->lookup_id(drawing_name);
495 return "Surface does not exist";
498 if (*surface_id == this->layers.main_surface) {
499 return "Cannot deactivate main_surface";
502 auto o_state = *this->layers.get_layout_state(*surface_id);
505 return "Could not find layer for surface";
508 struct LayoutState &state = *o_state;
510 if (state.main == -1) {
511 return "No surface active";
514 if (*surface_id == this->layers.main_surface) {
515 logdebug("Refusing to deactivate main_surface %d", *surface_id);
519 if (state.main == *surface_id) {
520 if (state.sub != -1) {
521 std::string sub = std::move(*this->lookup_name(state.sub));
522 this->emit_syncdraw(sub.c_str());
524 this->deactivate(*surface_id);
525 this->surface_set_layout_full(state.sub);
526 state.main = state.sub;
528 state.s = LayoutState::Single;
530 this->enqueue_flushdraw(state.sub);
532 this->deactivate(*surface_id);
535 } else if (state.sub == *surface_id) {
536 std::string main = std::move(*this->lookup_name(state.main));
537 this->emit_syncdraw(main.c_str());
539 this->deactivate(*surface_id);
540 this->deactivate(*surface_id);
541 this->surface_set_layout_full(state.main);
543 state.s = LayoutState::Single;
545 this->enqueue_flushdraw(state.main);
547 return "Surface is not active";
550 this->controller->commit_changes();
551 this->display->flush();
556 void App::enqueue_flushdraw(int surface_id) {
557 this->check_flushdraw(surface_id);
558 logdebug("Enqueuing EndDraw for surface_id %d", surface_id);
559 this->pending_end_draw.push_back(surface_id);
562 void App::check_flushdraw(int surface_id) {
563 auto i = std::find(std::begin(this->pending_end_draw),
564 std::end(this->pending_end_draw), surface_id);
565 if (i != std::end(this->pending_end_draw)) {
566 auto n = this->lookup_name(surface_id);
567 logerror("Application %s (%d) has pending EndDraw call(s)!",
568 n ? n->c_str() : "unknown-name", surface_id);
569 std::swap(this->pending_end_draw[std::distance(
570 std::begin(this->pending_end_draw), i)],
571 this->pending_end_draw.back());
572 this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
576 char const *App::api_enddraw(char const *drawing_name) {
577 for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
578 auto n = this->lookup_name(this->pending_end_draw[i]);
579 if (n && *n == drawing_name) {
580 std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
581 this->pending_end_draw.resize(iend - 1);
582 // XXX: Please tell the compositor to thaw the surface...
583 this->emit_flushdraw(drawing_name);
587 return "No EndDraw pending for surface";
591 // _ __ _ __ _____ _(_) ___ __| | | ____|_ _____ _ __ | |_ ___
592 // | '_ \| '__/ _ \ \/ / |/ _ \/ _` | | _| \ \ / / _ \ '_ \| __/ __|
593 // | |_) | | | (_) > <| | __/ (_| | | |___ \ V / __/ | | | |_\__ \
594 // | .__/|_| \___/_/\_\_|\___|\__,_| |_____| \_/ \___|_| |_|\__|___/
596 void App::surface_created(uint32_t surface_id) {
597 auto layer_id = this->layers.get_layer_id(surface_id);
599 logdebug("Newly created surfce %d is not associated with any layer!",
604 logdebug("surface_id is %u, layer_id is %u", surface_id, *layer_id);
606 this->controller->layers[*layer_id]->add_surface(
607 this->controller->surfaces[surface_id].get());
609 // activate the main_surface right away
610 if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
611 logdebug("Activating main_surface (%d)", surface_id);
613 this->api_activate_surface(
614 this->lookup_name(surface_id).value_or("unknown-name").c_str());
618 void App::surface_removed(uint32_t surface_id) {
619 logdebug("surface_id is %u", surface_id);
621 auto drawing_name = this->lookup_name(surface_id);
623 this->api_deactivate_surface(drawing_name->c_str());
626 this->id_alloc.remove_id(surface_id);
629 void App::emit_activated(char const *label) {
630 this->api.send_event("activated", label);
633 void App::emit_deactivated(char const *label) {
634 this->api.send_event("deactivated", label);
637 void App::emit_syncdraw(char const *label) {
638 this->api.send_event("syncdraw", label);
641 void App::emit_flushdraw(char const *label) {
642 this->api.send_event("flushdraw", label);
645 void App::emit_visible(char const *label, bool is_visible) {
646 this->api.send_event(is_visible ? "visible" : "invisible", label);
649 void App::emit_invisible(char const *label) {
650 return emit_visible(label, false);
653 void App::emit_visible(char const *label) { return emit_visible(label, true); }
655 result<int> App::api_request_surface(char const *drawing_name) {
656 auto lid = this->layers.get_layer_id(std::string(drawing_name));
658 // XXX: to we need to put these applications on the App layer?
659 return Err<int>("Drawing name does not match any role");
662 auto rname = this->lookup_id(drawing_name);
664 // name does not exist yet, allocate surface id...
665 auto id = int(this->id_alloc.generate_id(drawing_name));
666 this->layers.add_surface(id, *lid);
668 // XXX: we set the main_surface[_name] here and now,
669 // not sure if we want this, but it worked so far.
670 if (!this->layers.main_surface_name.empty() &&
671 this->layers.main_surface_name == drawing_name) {
672 this->layers.main_surface = id;
673 logdebug("Set main_surface id to %u", id);
679 // Check currently registered drawing names if it is already there.
680 return Err<int>("Surface already present");
683 void App::activate(int id) {
684 if (this->controller->sprops[id].visibility == 0) {
685 this->controller->surfaces[id]->set_visibility(1);
687 this->lookup_name(id).value_or("unknown-name").c_str();
688 this->emit_activated(label);
689 this->emit_visible(label);
693 void App::deactivate(int id) {
694 if (this->controller->sprops[id].visibility != 0) {
695 this->controller->surfaces[id]->set_visibility(0);
697 this->lookup_name(id).value_or("unknown-name").c_str();
698 this->emit_deactivated(label);
699 this->emit_invisible(label);
703 bool App::can_split(struct LayoutState const &state, int new_id) {
704 if (state.main != -1 && state.main != new_id) {
705 auto new_id_layer = this->layers.get_layer_id(new_id).value();
706 auto current_id_layer = this->layers.get_layer_id(state.main).value();
708 // surfaces are on separate layers, don't bother.
709 if (new_id_layer != current_id_layer) {
713 std::string const &new_id_str = this->lookup_name(new_id).value();
714 std::string const &cur_id_str = this->lookup_name(state.main).value();
716 auto const &layer = this->layers.get_layer(new_id_layer);
718 logdebug("layer info name: %s", layer->name.c_str());
720 if (layer->layouts.empty()) {
724 for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
725 logdebug("%d main_match '%s'", new_id_layer, i->main_match.c_str());
726 auto rem = std::regex(i->main_match);
727 if (std::regex_match(cur_id_str, rem)) {
728 // build the second one only if the first already matched
729 logdebug("%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
730 auto res = std::regex(i->sub_match);
731 if (std::regex_match(new_id_str, res)) {
732 logdebug("layout matched!");
743 // ___ ___ _ __ | |_ _ __ ___ | | | ___ _ __ | |__ ___ ___ | | _____
744 // / __/ _ \| '_ \| __| '__/ _ \| | |/ _ \ '__|| '_ \ / _ \ / _ \| |/ / __|
745 // | (_| (_) | | | | |_| | | (_) | | | __/ | | | | | (_) | (_) | <\__ \
746 // \___\___/|_| |_|\__|_| \___/|_|_|\___|_|___|_| |_|\___/ \___/|_|\_\___/
748 void controller_hooks::surface_created(uint32_t surface_id) {
749 this->app->surface_created(surface_id);
752 void controller_hooks::surface_removed(uint32_t surface_id) {
753 this->app->surface_removed(surface_id);