+// _ _ _ _ _ ____
+// (_)_ __ (_) |_ | | __ _ _ _ ___ _ _| |_ / /\ \
+// | | '_ \| | __| | |/ _` | | | |/ _ \| | | | __| | | |
+// | | | | | | |_ | | (_| | |_| | (_) | |_| | |_| | | |
+// |_|_| |_|_|\__|___|_|\__,_|\__, |\___/ \__,_|\__| | | |
+// |_____| |___/ \_\/_/
+char const *init_layout(struct connection &c) {
+ if (!c.c) {
+ return "ivi_controller global not available";
+ }
+
+ if (c.outputs.empty()) {
+ return "no output was set up!";
+ }
+
+ auto &o = c.outputs.front();
+ auto &s = c.c->screens.begin()->second;
+ auto &layers = c.c->layers;
+
+ // XXX: Write output dimensions to ivi controller...
+ c.c->output_size = genivi::size{uint32_t(o->width), uint32_t(o->height)};
+
+ // Clear scene
+ layers.clear();
+
+ // Clear screen
+ s->clear();
+
+ // Setup our dummy scene...
+ c.c->layer_create(100, 0, 0); // bottom layer, anything else
+ c.c->layer_create(1000, 0, 0); // top layer, mandelbrot
+
+ auto &l100 = c.c->layers[100];
+ auto &l1k = c.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);
+
+ // Add layers to screen
+ s->set_render_order({100, 1000});
+
+ c.c->commit_changes();
+ // Note: this does not flush the display!
+
+ return nullptr;
+}
+} // namespace
+
+// _ ____
+// _ __ ___ __ _(_)_ __ / /\ \
+// | '_ ` _ \ / _` | | '_ \| | | |
+// | | | | | | (_| | | | | | | | |
+// |_| |_| |_|\__,_|_|_| |_| | | |
+// \_\/_/
+int main(int /*argc*/, char ** /*argv*/) {