X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fplugins%2Fmap.c;h=0ae8ef6c411fadf497d7fa426547c8114a2f781b;hp=0dbb79f38931333092fa91274610d77dabed7945;hb=5350256efff1c97426e0db60e404bfd8a6cb08be;hpb=b87064909e6d20e1ee2995adae0c1ce5cb692d7e

diff --git a/src/plugins/map.c b/src/plugins/map.c
index 0dbb79f..0ae8ef6 100644
--- a/src/plugins/map.c
+++ b/src/plugins/map.c
@@ -15,6 +15,14 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/**
+ * SECTION:map
+ * @short_description: Map plugin
+ *
+ * #GisPluginMap provides map overlays. Much of this data is obtained from the
+ * OpenStreetMap project.
+ */
+
 #include <time.h>
 #include <stdlib.h>
 #include <glib/gstdio.h>
@@ -80,8 +88,8 @@ static gboolean _load_tile_cb(gpointer _data)
 			(alpha ? GL_RGBA : GL_RGB), GL_UNSIGNED_BYTE, pixels);
 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
-	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
 	glFlush();
 
 	tile->data = tex;
@@ -126,12 +134,12 @@ static gpointer _update_tiles(gpointer _map)
 {
 	g_debug("GisPluginMap: _update_tiles");
 	GisPluginMap *map = _map;
-	g_mutex_lock(map->mutex);
-	gdouble lat, lon, elev;
-	gis_viewer_get_location(map->viewer, &lat, &lon, &elev);
-	gis_tile_update(map->tiles,
+	if (!g_mutex_trylock(map->mutex))
+		return NULL;
+	GisPoint eye;
+	gis_viewer_get_location(map->viewer, &eye.lat, &eye.lon, &eye.elev);
+	gis_tile_update(map->tiles, &eye,
 			MAX_RESOLUTION, TILE_WIDTH, TILE_WIDTH,
-			lat, lon, elev,
 			_load_tile, map);
 	gis_tile_gc(map->tiles, time(NULL)-10,
 			_free_tile, map);
@@ -148,9 +156,24 @@ static void _on_location_changed(GisViewer *viewer,
 	g_thread_create(_update_tiles, map, FALSE, NULL);
 }
 
+static gpointer _threaded_init(GisPluginMap *map)
+{
+	_load_tile(map->tiles, map);
+	_update_tiles(map);
+	return NULL;
+}
+
 /***********
  * Methods *
  ***********/
+/**
+ * gis_plugin_map_new:
+ * @viewer: the #GisViewer to use for drawing
+ *
+ * Create a new instance of the map plugin.
+ *
+ * Returns: the new #GisPluginMap
+ */
 GisPluginMap *gis_plugin_map_new(GisViewer *viewer)
 {
 	g_debug("GisPluginMap: new");
@@ -158,8 +181,7 @@ GisPluginMap *gis_plugin_map_new(GisViewer *viewer)
 	map->viewer = g_object_ref(viewer);
 
 	/* Load initial tiles */
-	_load_tile(map->tiles, map);
-	g_thread_create(_update_tiles, map, FALSE, NULL);
+	g_thread_create((GThreadFunc)_threaded_init, map, FALSE, NULL);
 
 	/* Connect signals */
 	map->sigid = g_signal_connect(map->viewer, "location-changed",