From 743884774843259d92ec2b3745caa7e91805af53 Mon Sep 17 00:00:00 2001
From: Marcus Fritzsch <marcus_fritzsch@mentor.com>
Date: Fri, 28 Jul 2017 13:19:47 +0200
Subject: [PATCH] app: scene setup according to ids.json

* Setup layers as specified in ids.json.
* Map surfaces to their layers.
* Complain about unknown surfaces (i.e. those w/o a mapping).

Signed-off-by: Marcus Fritzsch <marcus_fritzsch@mentor.com>
---
 src/app.cpp | 73 ++++++++++++++++++++++++++++++++-----------------------------
 src/app.hpp |  2 ++
 2 files changed, 40 insertions(+), 35 deletions(-)

diff --git a/src/app.cpp b/src/app.cpp
index e04b89b..939d569 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -42,7 +42,7 @@ result<struct layout> layout_from_json(json const &j) {
    DB(j);
    auto &ja = j["areas"];
 
-   auto l = wm::layout{j["name"].get<std::string>(), uint32_t(ja.size()), {}};
+   auto l = layout{j["name"].get<std::string>(), uint32_t(ja.size()), {}};
 
    if (ja.size() > layout::MAX_N_AREAS) {
       return Err<struct layout>("Invalid number of areas in layout");
@@ -92,22 +92,16 @@ struct result<surface_id_to_layer_map>
 //  \___|_|\__,_|___/___/ /_/   \_\ .__/| .__/  |_|_| |_| |_| .__/|_|
 //                                |_|   |_|                 |_|
 App::App(wl::display *d)
-   : api{this}, chooks{this}, display{d}, controller{} {
+   : api{this},
+     chooks{this},
+     display{d},
+     controller{},
+     outputs(),
+     layouts(load_layout("../layout.json").unwrap()),
+     surface2layer(load_layer_ids("../ids.json").unwrap()) {
    // layouts(load_layout("../layout.json").unwrap()) {
    assert(g_app == nullptr);
    g_app = this;
-
-   auto a = load_layout("../layout.json");
-   auto b = a.map_err([](char const *e) -> char const * {
-      DB("Could not load layout: " << e);
-      return e;
-   });
-
-   auto c = load_layer_ids("../ids.json");
-   auto e = c.map_err([](char const *e) -> char const * {
-      DB("Could not load ids: " << e);
-      return e;
-   });
 }
 
 App::~App() { g_app = nullptr; }
@@ -195,21 +189,22 @@ int App::init_layout() {
    // Clear screen
    s->clear();
 
-   // Setup our dummy scene...
-   c->layer_create(100, 0, 0);   // bottom layer, anything else
-   c->layer_create(1000, 0, 0);  // top layer, mandelbrot
-
-   auto &l100 = c->layers[100];
-   auto &l1k = c->layers[1000];
-
-   // Set layers fullscreen
-   l100->set_destination_rectangle(0, 0, o->width, o->height);
-   l1k->set_destination_rectangle(0, 0, o->width, o->height);
-   l100->set_visibility(1);
-   l1k->set_visibility(1);
+   // Quick and dirty setup of layers
+   // XXX: This likely needs to be sorted by order (note, we don't (yet?)
+   // do any zorder arrangement).
+   std::vector<unsigned> ls;
+   ls.reserve(this->surface2layer.mapping.size());
+   for (auto const &i: this->surface2layer.mapping) {
+      c->layer_create(i.layer_id, o->width, o->height);
+      auto &l = layers[i.layer_id];
+      l->set_destination_rectangle(0, 0, o->width, o->height);
+      l->set_visibility(1);
+      DB("Setting up layer " << i.layer_id << " for surfaces " << i.id_min << " through " << i.id_max);
+      ls.push_back(unsigned(i.layer_id));
+   }
 
    // Add layers to screen
-   s->set_render_order({100, 1000});
+   s->set_render_order(ls);
 
    c->commit_changes();
 
@@ -220,14 +215,22 @@ int App::init_layout() {
 
 void App::surface_created(uint32_t surface_id) {
    DB("surface_id is " << surface_id);
-   this->controller->add_task("fullscreen surface", [surface_id](struct genivi::controller *c) {
-      auto &s = c->surfaces[surface_id];
-      s->set_destination_rectangle(0, 0, c->output_size.w, c->output_size.h);
-      s->set_visibility(1);
-      uint32_t lid = surface_id == 0x16180 ? 1000 : 100;
-      c->layers[lid]->add_surface(s.get());
-      logdebug("Surface %u now fullscreen on layer %u", surface_id, lid);
-   });
+   int layer_id =
+      this->surface2layer.get_layer_for_surface(surface_id).value_or(-1);
+   if (layer_id == -1) {
+      logerror("Surface %d (0x%x) is not part of any layer!", surface_id,
+               surface_id);
+   } else {
+      this->controller->add_task(
+         "fullscreen surface", [layer_id, surface_id](struct genivi::controller *c) {
+            auto &s = c->surfaces[surface_id];
+            s->set_destination_rectangle(0, 0, c->output_size.w,
+                                         c->output_size.h);
+            s->set_visibility(1);
+            c->layers[layer_id]->add_surface(s.get());
+            logdebug("Surface %u now fullscreen on layer %u", surface_id, layer_id);
+         });
+   }
 }
 
 void App::surface_removed(uint32_t surface_id) {
diff --git a/src/app.hpp b/src/app.hpp
index 0e38bc0..512f272 100644
--- a/src/app.hpp
+++ b/src/app.hpp
@@ -13,6 +13,7 @@
 #include "wayland.hpp"
 #include "layout.hpp"
 #include "controller_hooks.hpp"
+#include "layers.hpp"
 
 namespace wl {
 struct display;
@@ -35,6 +36,7 @@ struct App {
    std::vector<std::unique_ptr<struct wl::output>> outputs;
 
    layouts_type layouts;
+   surface_id_to_layer_map surface2layer;
 
    App(wl::display *d);
    ~App();
-- 
2.16.6