MirDisplayConnection::MirDisplayConnection()
: connection_(nullptr),
output_id_(-1),
vertical_resolution_(0),
horizontal_resolution_(0) {
auto xdg_runtime_dir = ::getenv("XDG_RUNTIME_DIR");
if (!xdg_runtime_dir)
BOOST_THROW_EXCEPTION(std::runtime_error("Failed to find XDG_RUNTIME_DIR"));
std::string socket_path = xdg_runtime_dir;
socket_path += "/mir_socket";
connection_ = mir_connect_sync(socket_path.c_str(), "anbox");
if (!mir_connection_is_valid(connection_)) {
std::string msg;
msg += "Failed to connect with Mir server: ";
msg += mir_connection_get_error_message(connection_);
BOOST_THROW_EXCEPTION(std::runtime_error(msg.c_str()));
}
mir_connection_set_display_config_change_callback(
connection_,
[](MirConnection *connection, void *context) {
auto thiz = reinterpret_cast<MirDisplayConnection *>(context);
DEBUG("");
},
this);
MirDisplayConfiguration *display_config =
mir_connection_create_display_config(connection_);
const MirDisplayOutput *output = find_active_output(display_config);
if (!output)
BOOST_THROW_EXCEPTION(
std::runtime_error("Failed to find active output display"));
DEBUG("Selecting output id %d", output->output_id);
output_id_ = output->output_id;
const MirDisplayMode *mode = &output->modes[output->current_mode];
vertical_resolution_ = mode->vertical_resolution;
horizontal_resolution_ = mode->horizontal_resolution;
mir_display_config_destroy(display_config);
}
bool
NativeStateMir::create_window(WindowProperties const& properties)
{
static const char *win_name("glmark2 "GLMARK_VERSION);
if (!mir_connection_is_valid(mir_connection_)) {
Log::error("Cannot create a Mir surface without a valid connection "
"to the Mir display server!\n");
return false;
}
/* Recreate an existing window only if it has actually been resized */
if (mir_surface_) {
if (properties_.fullscreen != properties.fullscreen ||
(properties.fullscreen == false &&
(properties_.width != properties.width ||
properties_.height != properties.height)))
{
mir_surface_release_sync(mir_surface_);
mir_surface_ = 0;
}
else
{
return true;
}
}
uint32_t output_id = mir_display_output_id_invalid;
properties_ = properties;
if (properties_.fullscreen) {
DisplayConfiguration display_config(mir_connection_);
if (!display_config.is_valid()) {
Log::error("Couldn't get display configuration from the Mir display server!\n");
return false;
}
const MirDisplayOutput* active_output = find_active_output(display_config);
if (active_output == NULL) {
Log::error("Couldn't find an active output in the Mir display server!\n");
return false;
}
const MirDisplayMode* current_mode =
&active_output->modes[active_output->current_mode];
properties_.width = current_mode->horizontal_resolution;
properties_.height = current_mode->vertical_resolution;
output_id = active_output->output_id;
Log::debug("Making Mir surface fullscreen on output %u (%ux%u)\n",
output_id, properties_.width, properties_.height);
}
MirPixelFormat surface_format = find_best_surface_format(mir_connection_);
if (surface_format == mir_pixel_format_invalid) {
Log::error("Couldn't find a pixel format to use for the Mir surface!\n");
return false;
}
Log::debug("Using pixel format %u for the Mir surface\n", surface_format);
MirSurfaceParameters surface_parameters = {
win_name,
properties_.width, properties_.height,
surface_format,
mir_buffer_usage_hardware,
output_id
};
mir_surface_ = mir_connection_create_surface_sync(mir_connection_,
&surface_parameters);
if (!mir_surface_ || !mir_surface_is_valid(mir_surface_)) {
Log::error("Failed to create Mir surface!\n");
return false;
}
return true;
}
