*/
#include <time.h>
-#include <string.h>
#include <glib/gstdio.h>
#include <GL/gl.h>
struct _LoadTileData {
GritsPluginSat *sat;
GritsTile *tile;
- gchar *path;
+ guint8 *pixels;
+ gboolean alpha;
+ gint width;
+ gint height;
};
static gboolean _load_tile_cb(gpointer _data)
{
struct _LoadTileData *data = _data;
- GritsPluginSat *sat = data->sat;
- GritsTile *tile = data->tile;
- gchar *path = data->path;
+ g_debug("GritsPluginSat: _load_tile_cb start");
+
+ guint *tex = g_new0(guint, 1);
+ glGenTextures(1, tex);
+ glBindTexture(GL_TEXTURE_2D, *tex);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+ glTexImage2D(GL_TEXTURE_2D, 0, 4, data->width, data->height, 0,
+ (data->alpha ? GL_RGBA : GL_RGB), GL_UNSIGNED_BYTE, data->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);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+ glFlush();
+
+ data->tile->data = tex;
+ gtk_widget_queue_draw(GTK_WIDGET(data->sat->viewer));
+ g_free(data->pixels);
g_free(data);
+ return FALSE;
+}
+
+static void _load_tile(GritsTile *tile, gpointer _sat)
+{
+ GritsPluginSat *sat = _sat;
+ g_debug("GritsPluginSat: _load_tile start %p", g_thread_self());
+ if (sat->aborted) {
+ g_debug("GritsPluginSat: _load_tile - aborted");
+ return;
+ }
+
+ /* Download tile */
+ gchar *path = grits_wms_fetch(sat->wms, tile, GRITS_ONCE, NULL, NULL);
+ if (!path) return; // Canceled/error
/* Load pixbuf */
- g_debug("GritsPluginSat: _load_tile_cb start");
GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, NULL);
if (!pixbuf) {
g_warning("GritsPluginSat: _load_tile - Error loading pixbuf %s", path);
g_remove(path);
g_free(path);
- return FALSE;
+ return;
}
g_free(path);
- /* Create Texture */
- guchar *pixels = gdk_pixbuf_get_pixels(pixbuf);
- gboolean alpha = gdk_pixbuf_get_has_alpha(pixbuf);
- gint width = gdk_pixbuf_get_width(pixbuf);
- gint height = gdk_pixbuf_get_height(pixbuf);
+ /* Copy pixbuf data for callback */
+ struct _LoadTileData *data = g_new0(struct _LoadTileData, 1);
+ data->sat = sat;
+ data->tile = tile;
+ data->pixels = gdk_pixbuf_get_pixels(pixbuf);
+ data->alpha = gdk_pixbuf_get_has_alpha(pixbuf);
+ data->width = gdk_pixbuf_get_width(pixbuf);
+ data->height = gdk_pixbuf_get_height(pixbuf);
+ data->pixels = g_memdup(data->pixels,
+ data->width * data->height * (data->alpha ? 4 : 3));
+ g_object_unref(pixbuf);
/* Draw a border */
//gint border = 10;
// memset(&pixels[(i*stride)+((width-border)*4)], 0xff, border*4);
//}
- guint *tex = g_new0(guint, 1);
- glGenTextures(1, tex);
- glBindTexture(GL_TEXTURE_2D, *tex);
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glPixelStorei(GL_PACK_ALIGNMENT, 1);
- glTexImage2D(GL_TEXTURE_2D, 0, 4, width, height, 0,
- (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);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
- glFlush();
-
- tile->data = tex;
- gtk_widget_queue_draw(GTK_WIDGET(sat->viewer));
- g_object_unref(pixbuf);
- return FALSE;
-}
-
-static void _load_tile(GritsTile *tile, gpointer _sat)
-{
- GritsPluginSat *sat = _sat;
- g_debug("GritsPluginSat: _load_tile start %p", g_thread_self());
- struct _LoadTileData *data = g_new0(struct _LoadTileData, 1);
- data->sat = sat;
- data->tile = tile;
- data->path = grits_wms_fetch(sat->wms, tile, GRITS_ONCE, NULL, NULL);
+ /* Load the GL texture from the main thread */
g_idle_add_full(G_PRIORITY_LOW, _load_tile_cb, data, NULL);
g_debug("GritsPluginSat: _load_tile end %p", g_thread_self());
}
g_idle_add_full(G_PRIORITY_LOW, _free_tile_cb, tile->data, NULL);
}
-static gpointer _update_tiles(gpointer _sat)
+static void _update_tiles(gpointer _, gpointer _sat)
{
g_debug("GritsPluginSat: _update_tiles");
GritsPluginSat *sat = _sat;
- if (!g_mutex_trylock(sat->mutex))
- return NULL;
GritsPoint eye;
grits_viewer_get_location(sat->viewer, &eye.lat, &eye.lon, &eye.elev);
grits_tile_update(sat->tiles, &eye,
_load_tile, sat);
grits_tile_gc(sat->tiles, time(NULL)-10,
_free_tile, sat);
- g_mutex_unlock(sat->mutex);
- return NULL;
}
/*************
static void _on_location_changed(GritsViewer *viewer,
gdouble lat, gdouble lon, gdouble elev, GritsPluginSat *sat)
{
- g_thread_create(_update_tiles, sat, FALSE, NULL);
-}
-
-static gpointer _threaded_init(GritsPluginSat *sat)
-{
- _load_tile(sat->tiles, sat);
- _update_tiles(sat);
- return NULL;
+ g_thread_pool_push(sat->threads, NULL+1, NULL);
}
/***********
sat->viewer = g_object_ref(viewer);
/* Load initial tiles */
- g_thread_create((GThreadFunc)_threaded_init, sat, FALSE, NULL);
+ _load_tile(sat->tiles, sat);
+ _update_tiles(NULL, sat);
/* Connect signals */
sat->sigid = g_signal_connect(sat->viewer, "location-changed",
{
g_debug("GritsPluginSat: init");
/* Set defaults */
- sat->mutex = g_mutex_new();
+ sat->threads = g_thread_pool_new(_update_tiles, sat, 1, FALSE, NULL);
sat->tiles = grits_tile_new(NULL, NORTH, SOUTH, EAST, WEST);
sat->wms = grits_wms_new(
"http://www.nasa.network.com/wms", "bmng200406", "image/jpeg",
{
g_debug("GritsPluginSat: dispose");
GritsPluginSat *sat = GRITS_PLUGIN_SAT(gobject);
+ sat->aborted = TRUE;
/* Drop references */
if (sat->viewer) {
g_signal_handler_disconnect(sat->viewer, sat->sigid);
grits_viewer_remove(sat->viewer, sat->tiles);
soup_session_abort(sat->wms->http->soup);
+ g_thread_pool_free(sat->threads, TRUE, TRUE);
while (gtk_events_pending())
gtk_main_iteration();
g_object_unref(sat->viewer);
g_debug("GritsPluginSat: finalize");
GritsPluginSat *sat = GRITS_PLUGIN_SAT(gobject);
/* Free data */
- grits_tile_free(sat->tiles, _free_tile, sat);
grits_wms_free(sat->wms);
- g_mutex_free(sat->mutex);
+ grits_tile_free(sat->tiles, _free_tile, sat);
G_OBJECT_CLASS(grits_plugin_sat_parent_class)->finalize(gobject);
}
projects / grits / blobdiff