gboolean _camera_initialize(const dt_camctl_t *c, dt_camera_t *cam)
{
dt_camctl_t *camctl=(dt_camctl_t *)c;
CameraAbilities a;
GPPortInfo pi;
if( cam->gpcam==NULL )
{
gp_camera_new(&cam->gpcam);
int m = gp_abilities_list_lookup_model( c->gpcams, cam->model );
gp_abilities_list_get_abilities (c->gpcams, m, &a);
gp_camera_set_abilities (cam->gpcam, a);
int p = gp_port_info_list_lookup_path (c->gpports, cam->port);
gp_port_info_list_get_info (c->gpports, p, &pi);
gp_camera_set_port_info (cam->gpcam , pi);
// Check for abilities
if( (a.operations&GP_OPERATION_CAPTURE_IMAGE) ) cam->can_tether=TRUE;
if( (a.operations&GP_OPERATION_CAPTURE_PREVIEW) ) cam->can_live_view=TRUE;
if( cam->can_tether && (a.operations&GP_OPERATION_CONFIG) ) cam->can_config=TRUE;
if( !(a.file_operations&GP_FILE_OPERATION_NONE) ) cam->can_import=TRUE;
if( gp_camera_init( cam->gpcam , camctl->gpcontext) != GP_OK )
{
dt_print(DT_DEBUG_CAMCTL,"[camera_control] failed to initialize camera %s on port %s\n", cam->model,cam->port);
return FALSE;
}
// read a full copy of config to configuration cache
gp_camera_get_config( cam->gpcam, &cam->configuration, c->gpcontext );
// TODO: find a more robust way for this, once we find out how to do it with non-EOS cameras
if(cam->can_live_view && dt_camctl_camera_property_exists(camctl, cam, "eoszoomposition"))
cam->can_live_view_advanced = TRUE;
// initialize timeout callbacks eg. keep alive, some cameras needs it.
cam->gpcontext = camctl->gpcontext;
gp_camera_set_timeout_funcs(cam->gpcam,
(CameraTimeoutStartFunc)_camera_start_timeout_func,
(CameraTimeoutStopFunc)_camera_stop_timeout_func,
cam);
dt_pthread_mutex_init(&cam->jobqueue_lock, NULL);
dt_print(DT_DEBUG_CAMCTL,"[camera_control] device %s on port %s initialized\n", cam->model,cam->port);
}
else
dt_print(DT_DEBUG_CAMCTL,"[camera_control] device %s on port %s already initialized\n", cam->model,cam->port);
return TRUE;
}
static GtkamCamera *
gtkam_chooser_get_camera (GtkamChooser *chooser)
{
GtkWidget *dialog, *status;
GPPortInfo info;
Camera *camera;
CameraAbilities abilities;
const gchar *model, *port, *speed;
gchar *port_path, *right, *tmp;
int m, p, r;
gboolean multi;
GtkamCamera *c;
model = gtk_entry_get_text (chooser->priv->entry_model);
port = gtk_entry_get_text (chooser->priv->entry_port);
speed = gtk_entry_get_text (chooser->priv->entry_speed);
multi = GTK_TOGGLE_BUTTON (chooser->priv->check_multi)->active;
if (!port || !*port)
port_path = g_strdup (_("None"));
else {
port_path = g_strdup (port);
right = strrchr (port_path, ')');
*right = '\0';
tmp = g_strdup (strrchr (port_path, '(') + 1);
g_free (port_path);
port_path = tmp;
}
gp_camera_new (&camera);
#ifdef HAVE_GP_CAMERA_SET_TIMEOUT_FUNCS
gp_camera_set_timeout_funcs (camera, start_timeout_func,
stop_timeout_func, NULL);
#endif
/* Model? */
m = gp_abilities_list_lookup_model (chooser->priv->al, model);
gp_abilities_list_get_abilities (chooser->priv->al, m, &abilities);
gp_camera_set_abilities (camera, abilities);
/* Port? */
if (strcmp (port_path, _("None"))) {
p = gp_port_info_list_lookup_path (chooser->priv->il,
port_path);
gp_port_info_list_get_info (chooser->priv->il, p, &info);
gp_camera_set_port_info (camera, info);
}
/* Speed? */
if (strcmp (speed, _("Best")))
gp_camera_set_port_speed (camera, atoi (speed));
/*
* Initialize the camera to check if it is really there. Exit
* afterwards because other applications could need the camera, too.
*/
status = gtkam_status_new (_("Initializing camera..."));
gtkam_dialog_add_status (GTKAM_DIALOG (chooser), status);
r = gp_camera_init (camera, GTKAM_STATUS (status)->context->context);
if (multi)
gp_camera_exit (camera, NULL);
switch (r) {
case GP_OK:
break;
case GP_ERROR_CANCEL:
g_free (port_path);
break;
default:
g_free (port_path);
dialog = gtkam_error_new (r, GTKAM_STATUS (status)->context,
NULL, _("Could not initialize camera."));
gtk_window_set_transient_for (GTK_WINDOW (dialog),
GTK_WINDOW (chooser));
gtk_widget_show (dialog);
gp_camera_unref (camera);
camera = NULL;
}
gtk_object_destroy (GTK_OBJECT (status));
c = gtkam_camera_new (camera, multi);
gp_camera_unref (camera);
return (c);
}
