main: init dummy layout of layer 100 on the first screen

* If the layer is not existent, create it.
* Set the layer to the output dimensions.
* Set layer visibility to 1.
* Add the layer to the first screen.

Signed-off-by: Marcus Fritzsch <marcus_fritzsch@mentor.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 0acf201..67687af 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -58,6 +58,29 @@ int check_events(struct wl::display *d, struct conn *c, int fd) {
 
    return 0;
 }
+
+void init_layout(struct conn &c) {
+   struct wl::output &o = *c.outputs.begin()->get();
+   struct genivi::screen &s = *c.c->screens.begin()->second;
+   auto &layers = c.c->layers;
+
+   // Setup our dummy scene...
+   if (layers.find(100) == layers.end()) {
+      logdebug("Creating layer 100 with output dimensions (%ux%u)", o.width, o.height);
+      c.c->layer_create(100, o.width, o.height);
+   }
+
+   struct genivi::layer &l = *c.c->layers[100].get();
+
+   l.set_destination_rectangle(0, 0, o.width, o.height);
+   s.clear();
+
+   logdebug("Add layer 100 to screen %u", s.id);
+   s.add_layer(&l);
+
+   c.c->commit_changes();
+   // Note: this does not flush the display!
+}
 }
 
 int main(int argc, char **argv) {
@@ -95,6 +118,8 @@ int main(int argc, char **argv) {
    if (c.outputs.empty())
       fatal("no output was set up!");
 
+   init_layout(c);
+
    while (check_events(d.get(), &c, STDIN_FILENO) != -1) {
       c.c->execute_pending();
    }