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authorzheng_wenlong <wenlong_zheng@nexty-ele.com>2017-09-29 21:06:22 +0900
committerYuta Doi <yuta-d@witz-inc.co.jp>2017-10-09 01:48:59 +0900
commit074d058a7a483a66af7f8c0b928b321ad483f47c (patch)
treeeb89aacd178a7b99850cbdc528976e97d35d37bf /src/app.cpp
parent7204e00b05cab896df48abf6a355be69a0f57f80 (diff)
Add agl-service-windowmanager-2017
Add a new binding agl-service-windowmanager-2017. A image about this see JIRA SPEC-915. [PatchSet2] Use aglwgt make package. [PatchSet3] Modify to wait until wayland compositor starts up. Bug-AGL: SPEC-925 Change-Id: I8729bb71b5e91d5b009a5bab77232d92605c43ea Signed-off-by: zheng_wenlong <wenlong_zheng@nexty-ele.com>
Diffstat (limited to 'src/app.cpp')
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diff --git a/src/app.cpp b/src/app.cpp
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+++ b/src/app.cpp
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+/*
+ * Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
+ *
+ * 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.
+ */
+
+#include "app.hpp"
+#include "json_helper.hpp"
+#include "layers.hpp"
+#include "layout.hpp"
+#include "util.hpp"
+#include "wayland.hpp"
+
+#include <cstdio>
+#include <memory>
+
+#include <cassert>
+
+#include <json-c/json.h>
+
+#include <algorithm>
+#include <bits/signum.h>
+#include <csignal>
+#include <fstream>
+#include <json.hpp>
+#include <regex>
+#include <thread>
+
+namespace wm {
+
+namespace {
+
+using nlohmann::json;
+
+result<json> file_to_json(char const *filename) {
+ std::ifstream i(filename);
+ if (i.fail()) {
+ return Err<json>("Could not open config file");
+ }
+ json j;
+ i >> j;
+ return Ok(j);
+}
+
+struct result<layer_map> load_layer_map(char const *filename) {
+ logdebug("loading IDs from %s", filename);
+
+ auto j = file_to_json(filename);
+ if (j.is_err()) {
+ return Err<layer_map>(j.unwrap_err());
+ }
+ json jids = j.unwrap();
+
+ return to_layer_map(jids);
+}
+
+} // namespace
+
+// _ _ _ _
+// ___| | __ _ ___ ___ / \ _ __ _ __ (_)_ __ ___ _ __ | |
+// / __| |/ _` / __/ __| / _ \ | '_ \| '_ \ | | '_ ` _ \| '_ \| |
+// | (__| | (_| \__ \__ \ / ___ \| |_) | |_) | | | | | | | | |_) | |
+// \___|_|\__,_|___/___/ /_/ \_\ .__/| .__/ |_|_| |_| |_| .__/|_|
+// |_| |_| |_|
+App::App(wl::display *d)
+ : api{this},
+ chooks{this},
+ display{d},
+ controller{},
+ outputs(),
+ config(),
+ layers(),
+ id_alloc{},
+ pending_events(false),
+ policy{} {
+ try {
+ {
+ auto l = load_layer_map(
+ this->config.get_string("layers.json").value().c_str());
+ if (l.is_ok()) {
+ this->layers = l.unwrap();
+ } else {
+ logerror("%s", l.err().value());
+ }
+ }
+ } catch (std::exception &e) {
+ logerror("Loading of configuration failed: %s", e.what());
+ }
+}
+
+int App::init() {
+ if (!this->display->ok()) {
+ return -1;
+ }
+
+ if (this->layers.mapping.empty()) {
+ logerror("No surface -> layer mapping loaded");
+ return -1;
+ }
+
+ this->display->add_global_handler(
+ "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
+ this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
+ });
+
+ this->display->add_global_handler(
+ "ivi_controller", [this](wl_registry *r, uint32_t name, uint32_t v) {
+ this->controller =
+ std::make_unique<struct genivi::controller>(r, name, v);
+
+ // Init controller hooks
+ this->controller->chooks = &this->chooks;
+
+ // XXX: This protocol needs the output, so lets just add our mapping
+ // here...
+ this->controller->add_proxy_to_id_mapping(
+ this->outputs.back()->proxy.get(),
+ wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
+ this->outputs.back()->proxy.get())));
+ });
+
+ // First level objects
+ this->display->roundtrip();
+ // Second level objects
+ this->display->roundtrip();
+ // Third level objects
+ this->display->roundtrip();
+
+ return init_layers();
+}
+
+int App::dispatch_events() {
+ if (this->dispatch_events() == 0) {
+ return 0;
+ }
+
+ int ret = this->display->dispatch();
+ if (ret == -1) {
+ logerror("wl_display_dipatch() returned error %d",
+ this->display->get_error());
+ return -1;
+ }
+ this->display->flush();
+
+ return 0;
+}
+
+int App::dispatch_pending_events() {
+ if (this->pop_pending_events()) {
+ this->display->dispatch_pending();
+ return 0;
+}
+ return -1;
+}
+
+bool App::pop_pending_events() {
+ bool x{true};
+ return this->pending_events.compare_exchange_strong(
+ x, false, std::memory_order_consume);
+}
+
+void App::set_pending_events() {
+ this->pending_events.store(true, std::memory_order_release);
+}
+
+optional<int> App::lookup_id(char const *name) {
+ return this->id_alloc.lookup(std::string(name));
+}
+optional<std::string> App::lookup_name(int id) {
+ return this->id_alloc.lookup(id);
+}
+
+// _ _ _ _ _ ____
+// (_)_ __ (_) |_ | | __ _ _ _ ___ _ _| |_ / /\ \
+// | | '_ \| | __| | |/ _` | | | |/ _ \| | | | __| | | |
+// | | | | | | |_ | | (_| | |_| | (_) | |_| | |_| | | |
+// |_|_| |_|_|\__|___|_|\__,_|\__, |\___/ \__,_|\__| | | |
+// |_____| |___/ \_\/_/
+int App::init_layers() {
+ if (!this->controller) {
+ logerror("ivi_controller global not available");
+ return -1;
+ }
+
+ if (this->outputs.empty()) {
+ logerror("no output was set up!");
+ return -1;
+ }
+
+ auto &c = this->controller;
+
+ auto &o = this->outputs.front();
+ auto &s = c->screens.begin()->second;
+ auto &layers = c->layers;
+
+ // XXX: Write output dimensions to ivi controller...
+ c->output_size = genivi::size{uint32_t(o->width), uint32_t(o->height)};
+
+ // Clear scene
+ layers.clear();
+
+ // Clear screen
+ s->clear();
+
+ // Quick and dirty setup of layers
+ // XXX: This likely needs to be sorted by order (note, we don't (yet?)
+ // do any zorder arrangement).
+ for (auto const &i : this->layers.mapping) {
+ c->layer_create(i.second.layer_id, o->width, o->height);
+ auto &l = layers[i.second.layer_id];
+ l->set_destination_rectangle(0, 0, o->width, o->height);
+ l->set_visibility(1);
+ logdebug("Setting up layer %s (%d) for surface role match \"%s\"",
+ i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
+ }
+
+ // Add layers to screen (XXX: are they sorted correctly?)
+ s->set_render_order(this->layers.layers);
+
+ this->layout_commit();
+
+ return 0;
+}
+
+void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
+ if (!this->controller->surface_exists(surface_id)) {
+ logerror("Surface %d does not exist", surface_id);
+ return;
+ }
+
+ auto o_layer_id = this->layers.get_layer_id(surface_id);
+
+ if (!o_layer_id) {
+ logerror("Surface %d is not associated with any layer!", surface_id);
+ return;
+ }
+
+ uint32_t layer_id = *o_layer_id;
+
+ auto const &layer = this->layers.get_layer(layer_id);
+ auto rect = layer.value().rect;
+ auto &s = this->controller->surfaces[surface_id];
+
+ int x = rect.x;
+ int y = rect.y;
+ int w = rect.w;
+ int h = rect.h;
+
+ // less-than-0 values refer to MAX + 1 - $VALUE
+ // e.g. MAX is either screen width or height
+ if (w < 0) {
+ w = this->controller->output_size.w + 1 + w;
+ }
+ if (h < 0) {
+ h = this->controller->output_size.h + 1 + h;
+ }
+
+ if (sub_surface_id) {
+ if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
+ logerror(
+ "surface_set_layout: layers of surfaces (%d and %d) don't match!",
+ surface_id, *sub_surface_id);
+ return;
+ }
+
+ int x_off = 0;
+ int y_off = 0;
+
+ // split along major axis
+ if (w > h) {
+ w /= 2;
+ x_off = w;
+ } else {
+ h /= 2;
+ y_off = h;
+ }
+
+ auto &ss = this->controller->surfaces[*sub_surface_id];
+
+ logdebug("surface_set_layout for sub surface %u on layer %u",
+ *sub_surface_id, layer_id);
+
+ // configure surface to wxh dimensions
+ ss->set_configuration(w, h);
+ // set source reactangle, even if we should not need to set it.
+ ss->set_source_rectangle(0, 0, w, h);
+ // set destination to the display rectangle
+ ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
+ }
+
+ logdebug("surface_set_layout for surface %u on layer %u", surface_id,
+ layer_id);
+
+ // configure surface to wxh dimensions
+ s->set_configuration(w, h);
+ // set source reactangle, even if we should not need to set it.
+ s->set_source_rectangle(0, 0, w, h);
+
+ // set destination to the display rectangle
+ s->set_destination_rectangle(x, y, w, h);
+
+ logdebug("Surface %u now on layer %u with rect { %d, %d, %d, %d }",
+ surface_id, layer_id, x, y, w, h);
+}
+
+void App::layout_commit() {
+ this->controller->commit_changes();
+ this->display->flush();
+}
+
+char const *App::api_activate_surface(char const *drawing_name) {
+ ST();
+ auto const &surface_id = this->lookup_id(drawing_name);
+
+ if (!surface_id) {
+ return "Surface does not exist";
+ }
+
+ if (!this->controller->surface_exists(*surface_id)) {
+ return "Surface does not exist in controller!";
+ }
+
+ auto layer_id = this->layers.get_layer_id(*surface_id);
+
+ if (!layer_id) {
+ return "Surface is not on any layer!";
+ }
+
+ auto o_state = *this->layers.get_layout_state(*surface_id);
+
+ if (o_state == nullptr) {
+ return "Could not find layer for surface";
+}
+
+ struct LayoutState &state = *o_state;
+
+ // disable layers that are above our current layer
+ for (auto const &l : this->layers.mapping) {
+ if (l.second.layer_id <= *layer_id) {
+ continue;
+ }
+
+ bool flush = false;
+ if (l.second.state.main != -1) {
+ this->deactivate(l.second.state.main);
+ l.second.state.main = -1;
+ flush = true;
+ }
+
+ if (l.second.state.sub != -1) {
+ this->deactivate(l.second.state.sub);
+ l.second.state.sub = -1;
+ flush = true;
+ }
+
+ if (flush) {
+ this->layout_commit();
+ }
+ }
+
+ if (state.main == *surface_id || state.sub == *surface_id) {
+ return "Surface already active";
+ }
+
+ if (state.main == -1) {
+ this->try_layout(
+ state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
+ this->surface_set_layout(*surface_id);
+ // XXX do we need to activate after enddraw?
+ state = nl;
+ this->emit_syncdraw(drawing_name);
+ this->enqueue_flushdraw(state.main);
+ });
+ } else {
+ bool can_split = this->can_split(state, *surface_id);
+
+ if (can_split) {
+ this->try_layout(
+ state,
+ LayoutState{state.main, *surface_id},
+ [&] (LayoutState const &nl) {
+ std::string main =
+ std::move(*this->lookup_name(state.main));
+
+ this->surface_set_layout(state.main, surface_id);
+ if (state.sub != -1) {
+ this->deactivate(state.sub);
+ }
+ state = nl;
+
+ this->emit_syncdraw(drawing_name);
+ this->emit_syncdraw(main.c_str());
+ this->enqueue_flushdraw(state.main);
+ this->enqueue_flushdraw(state.sub);
+ });
+ } else {
+ this->try_layout(
+ state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
+ this->surface_set_layout(*surface_id);
+ this->deactivate(state.main);
+ if (state.sub != -1) {
+ this->deactivate(state.sub);
+ }
+ state = nl;
+
+ this->emit_syncdraw(drawing_name);
+ this->enqueue_flushdraw(state.main);
+ });
+ }
+ }
+
+ // no error
+ return nullptr;
+}
+
+char const *App::api_deactivate_surface(char const *drawing_name) {
+ ST();
+ auto const &surface_id = this->lookup_id(drawing_name);
+
+ if (!surface_id) {
+ return "Surface does not exist";
+ }
+
+ if (*surface_id == this->layers.main_surface) {
+ return "Cannot deactivate main_surface";
+ }
+
+ auto o_state = *this->layers.get_layout_state(*surface_id);
+
+ if (o_state == nullptr) {
+ return "Could not find layer for surface";
+ }
+
+ struct LayoutState &state = *o_state;
+
+ if (state.main == -1) {
+ return "No surface active";
+ }
+
+ // XXX: check against main_surface, main_surface_name is the configuration
+ // item.
+ if (*surface_id == this->layers.main_surface) {
+ logdebug("Refusing to deactivate main_surface %d", *surface_id);
+ return nullptr;
+ }
+
+ if (state.main == *surface_id) {
+ if (state.sub != -1) {
+ this->try_layout(
+ state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
+ std::string sub = std::move(*this->lookup_name(state.sub));
+
+ this->deactivate(*surface_id);
+ this->surface_set_layout(state.sub);
+ state = nl;
+
+ this->layout_commit();
+ this->emit_syncdraw(sub.c_str());
+ this->enqueue_flushdraw(state.sub);
+ });
+ } else {
+ this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
+ this->deactivate(*surface_id);
+ state = nl;
+ this->layout_commit();
+ });
+ }
+ } else if (state.sub == *surface_id) {
+ this->try_layout(
+ state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
+ std::string main = std::move(*this->lookup_name(state.main));
+
+ this->deactivate(*surface_id);
+ this->surface_set_layout(state.main);
+ state = nl;
+
+ this->layout_commit();
+ this->emit_syncdraw(main.c_str());
+ this->enqueue_flushdraw(state.main);
+ });
+ } else {
+ return "Surface is not active";
+ }
+
+ return nullptr;
+}
+
+void App::enqueue_flushdraw(int surface_id) {
+ this->check_flushdraw(surface_id);
+ logdebug("Enqueuing EndDraw for surface_id %d", surface_id);
+ this->pending_end_draw.push_back(surface_id);
+}
+
+void App::check_flushdraw(int surface_id) {
+ auto i = std::find(std::begin(this->pending_end_draw),
+ std::end(this->pending_end_draw), surface_id);
+ if (i != std::end(this->pending_end_draw)) {
+ auto n = this->lookup_name(surface_id);
+ logerror("Application %s (%d) has pending EndDraw call(s)!",
+ n ? n->c_str() : "unknown-name", surface_id);
+ std::swap(this->pending_end_draw[std::distance(
+ std::begin(this->pending_end_draw), i)],
+ this->pending_end_draw.back());
+ this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
+ }
+}
+
+char const *App::api_enddraw(char const *drawing_name) {
+ for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
+ auto n = this->lookup_name(this->pending_end_draw[i]);
+ if (n && *n == drawing_name) {
+ std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
+ this->pending_end_draw.resize(iend - 1);
+ // XXX: Please tell the compositor to thaw the surface...
+ this->activate(this->pending_end_draw[i]);
+ this->layout_commit();
+ this->emit_flushdraw(drawing_name);
+ return nullptr;
+ }
+ }
+ return "No EndDraw pending for surface";
+}
+
+void App::api_ping() { this->dispatch_pending_events(); }
+
+// _ _ _____ _
+// _ __ _ __ _____ _(_) ___ __| | | ____|_ _____ _ __ | |_ ___
+// | '_ \| '__/ _ \ \/ / |/ _ \/ _` | | _| \ \ / / _ \ '_ \| __/ __|
+// | |_) | | | (_) > <| | __/ (_| | | |___ \ V / __/ | | | |_\__ \
+// | .__/|_| \___/_/\_\_|\___|\__,_| |_____| \_/ \___|_| |_|\__|___/
+// |_|
+void App::surface_created(uint32_t surface_id) {
+ auto layer_id = this->layers.get_layer_id(surface_id);
+ if (!layer_id) {
+ logdebug("Newly created surfce %d is not associated with any layer!",
+ surface_id);
+ return;
+ }
+
+ logdebug("surface_id is %u, layer_id is %u", surface_id, *layer_id);
+
+ this->controller->layers[*layer_id]->add_surface(
+ this->controller->surfaces[surface_id].get());
+
+ // activate the main_surface right away
+ /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
+ logdebug("Activating main_surface (%d)", surface_id);
+
+ this->api_activate_surface(
+ this->lookup_name(surface_id).value_or("unknown-name").c_str());
+ }*/
+}
+
+void App::surface_removed(uint32_t surface_id) {
+ logdebug("surface_id is %u", surface_id);
+
+ // We cannot normally deactivate the main_surface, so be explicit
+ // about it:
+ if (int(surface_id) == this->layers.main_surface) {
+ this->deactivate_main_surface();
+ } else {
+ auto drawing_name = this->lookup_name(surface_id);
+ if (drawing_name) {
+ this->api_deactivate_surface(drawing_name->c_str());
+ }
+ }
+
+ this->id_alloc.remove_id(surface_id);
+ this->layers.remove_surface(surface_id);
+}
+
+void App::emit_activated(char const *label) {
+ this->api.send_event("active", label);
+}
+
+void App::emit_deactivated(char const *label) {
+ this->api.send_event("inactive", label);
+}
+
+void App::emit_syncdraw(char const *label) {
+ this->api.send_event("syncdraw", label);
+}
+
+void App::emit_flushdraw(char const *label) {
+ this->api.send_event("flushdraw", label);
+}
+
+void App::emit_visible(char const *label, bool is_visible) {
+ this->api.send_event(is_visible ? "visible" : "invisible", label);
+}
+
+void App::emit_invisible(char const *label) {
+ return emit_visible(label, false);
+}
+
+void App::emit_visible(char const *label) { return emit_visible(label, true); }
+
+result<int> App::api_request_surface(char const *drawing_name) {
+ auto lid = this->layers.get_layer_id(std::string(drawing_name));
+ if (!lid) {
+ // XXX: to we need to put these applications on the App layer?
+ return Err<int>("Drawing name does not match any role");
+ }
+
+ auto rname = this->lookup_id(drawing_name);
+ if (!rname) {
+ // name does not exist yet, allocate surface id...
+ auto id = int(this->id_alloc.generate_id(drawing_name));
+ this->layers.add_surface(id, *lid);
+
+ // XXX: we set the main_surface[_name] here and now,
+ // not sure if we want this, but it worked so far.
+ if (!this->layers.main_surface_name.empty() &&
+ this->layers.main_surface_name == drawing_name) {
+ this->layers.main_surface = id;
+ logdebug("Set main_surface id to %u", id);
+ }
+
+ return Ok<int>(id);
+ }
+
+ // Check currently registered drawing names if it is already there.
+ return Err<int>("Surface already present");
+}
+
+void App::activate(int id) {
+ auto ip = this->controller->sprops.find(id);
+ if (ip != this->controller->sprops.end() && ip->second.visibility == 0) {
+ this->controller->surfaces[id]->set_visibility(1);
+ char const *label =
+ this->lookup_name(id).value_or("unknown-name").c_str();
+ this->emit_activated(label);
+ this->emit_visible(label);
+ }
+}
+
+void App::deactivate(int id) {
+ auto ip = this->controller->sprops.find(id);
+ if (ip != this->controller->sprops.end() && ip->second.visibility != 0) {
+ this->controller->surfaces[id]->set_visibility(0);
+ char const *label =
+ this->lookup_name(id).value_or("unknown-name").c_str();
+ this->emit_deactivated(label);
+ this->emit_invisible(label);
+ }
+}
+
+void App::deactivate_main_surface() {
+ this->layers.main_surface = -1;
+ this->api_deactivate_surface(this->layers.main_surface_name.c_str());
+}
+
+bool App::can_split(struct LayoutState const &state, int new_id) {
+ if (state.main != -1 && state.main != new_id) {
+ auto new_id_layer = this->layers.get_layer_id(new_id).value();
+ auto current_id_layer = this->layers.get_layer_id(state.main).value();
+
+ // surfaces are on separate layers, don't bother.
+ if (new_id_layer != current_id_layer) {
+ return false;
+}
+
+ std::string const &new_id_str = this->lookup_name(new_id).value();
+ std::string const &cur_id_str = this->lookup_name(state.main).value();
+
+ auto const &layer = this->layers.get_layer(new_id_layer);
+
+ logdebug("layer info name: %s", layer->name.c_str());
+
+ if (layer->layouts.empty()) {
+ return false;
+}
+
+ for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
+ logdebug("%d main_match '%s'", new_id_layer, i->main_match.c_str());
+ auto rem = std::regex(i->main_match);
+ if (std::regex_match(cur_id_str, rem)) {
+ // build the second one only if the first already matched
+ logdebug("%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
+ auto res = std::regex(i->sub_match);
+ if (std::regex_match(new_id_str, res)) {
+ logdebug("layout matched!");
+ return true;
+}
+ }
+ }
+ }
+
+ return false;
+}
+
+void App::try_layout(struct LayoutState & /*state*/,
+ struct LayoutState const &new_layout,
+ std::function<void(LayoutState const &nl)> apply) {
+ if (this->policy.layout_is_valid(new_layout)) {
+ apply(new_layout);
+ }
+}
+
+// _ _ _ _ _
+// ___ ___ _ __ | |_ _ __ ___ | | | ___ _ __ | |__ ___ ___ | | _____
+// / __/ _ \| '_ \| __| '__/ _ \| | |/ _ \ '__|| '_ \ / _ \ / _ \| |/ / __|
+// | (_| (_) | | | | |_| | | (_) | | | __/ | | | | | (_) | (_) | <\__ \
+// \___\___/|_| |_|\__|_| \___/|_|_|\___|_|___|_| |_|\___/ \___/|_|\_\___/
+// |_____|
+void controller_hooks::surface_created(uint32_t surface_id) {
+ this->app->surface_created(surface_id);
+}
+
+void controller_hooks::surface_removed(uint32_t surface_id) {
+ this->app->surface_removed(surface_id);
+}
+
+void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
+ uint32_t /*v*/) {}
+
+void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
+ uint32_t /*x*/,
+ uint32_t /*y*/,
+ uint32_t /*w*/,
+ uint32_t /*h*/) {}
+
+} // namespace wm