/*
- * Copyright (C) 2009-201
0 Andy Spencer <andy753421@gmail.com>
+ * Copyright (C) 2009-201
1 Andy Spencer <andy753421@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/**
+ * SECTION:sat
+ * @short_description: Satellite plugin
+ *
+ * #GritsPluginSat provides overlays using satellite imagery. This is mostly
+ * provided by NASA's Blue Marble Next Generation.
+ */
+
#include <time.h>
+#include <string.h>
#include <glib/gstdio.h>
-#include <GL/gl.h>
-#include <gis.h>
+#include <grits.h>
#include "sat.h"
#define TILE_WIDTH 1024
#define TILE_HEIGHT 512
-struct _LoadTileData {
- GisPluginSat *self;
- GisTile *tile;
- GdkPixbuf *pixbuf;
-};
-static gboolean _load_tile_cb(gpointer _data)
+static void _load_tile_thread(gpointer _tile, gpointer _sat)
{
- struct _LoadTileData *data = _data;
- GisPluginSat *self = data->self;
- GisTile *tile = data->tile;
- GdkPixbuf *pixbuf = data->pixbuf;
- g_free(data);
-
- /* Create Texture */
- g_debug("GisPluginSat: _load_tile_cb start");
- 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);
-
- guint *tex = g_new0(guint, 1);
- gis_viewer_begin(self->viewer);
- 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_NEAREST);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
- glFlush();
- gis_viewer_end(self->viewer);
-
- tile->data = tex;
- gtk_widget_queue_draw(GTK_WIDGET(self->viewer));
- g_object_unref(pixbuf);
- return FALSE;
-}
+ GritsTile *tile = _tile;
+ GritsPluginSat *sat = _sat;
+
+ g_debug("GritsPluginSat: _load_tile_thread start %p - tile=%p",
+ g_thread_self(), tile);
+ if (sat->aborted) {
+ g_debug("GritsPluginSat: _load_tile_thread - aborted");
+ return;
+ }
-static void _load_tile(GisTile *tile, gpointer _self)
-{
- GisPluginSat *self = _self;
- g_debug("GisPluginSat: _load_tile start %p", g_thread_self());
- char *path = gis_wms_fetch(self->wms, tile, GIS_ONCE, NULL, NULL);
- struct _LoadTileData *data = g_new0(struct _LoadTileData, 1);
- data->self = self;
- data->tile = tile;
- data->pixbuf = gdk_pixbuf_new_from_file(path, NULL);
- if (data->pixbuf) {
- g_idle_add_full(G_PRIORITY_LOW, _load_tile_cb, data, NULL);
- } else {
- g_warning("GisPluginSat: _load_tile - Error loading pixbuf %s", path);
- g_free(data);
+ /* Download tile */
+ gchar *path = grits_wms_fetch(sat->wms, tile, GRITS_ONCE, NULL, NULL);
+ if (!path) return; // Canceled/error
+
+ /* Load pixbuf */
+ GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, NULL);
+ if (!pixbuf) {
+ g_warning("GritsPluginSat: _load_tile_thread - Error loading pixbuf %s", path);
g_remove(path);
+ g_free(path);
+ return;
}
g_free(path);
- g_debug("GisPluginSat: _load_tile end %p", g_thread_self());
-}
-static gboolean _free_tile_cb(gpointer data)
-{
- glDeleteTextures(1, data);
- g_free(data);
- return FALSE;
-}
-static void _free_tile(GisTile *tile, gpointer _self)
-{
- GisPluginSat *self = _self;
- g_debug("GisPluginSat: _free_tile: %p=%d", tile->data, *(guint*)tile->data);
- g_idle_add_full(G_PRIORITY_LOW, _free_tile_cb, tile->data, NULL);
+ /* Draw a border */
+#ifdef DRAW_TILE_BORDER
+ gint border = 10;
+ gint width = gdk_pixbuf_get_width(pixbuf);
+ gint height = gdk_pixbuf_get_height(pixbuf);
+ gint stride = gdk_pixbuf_get_rowstride(pixbuf);
+ guchar *pixels = gdk_pixbuf_get_pixels(pixbuf);
+ for (int i = 0; i < border; i++) {
+ memset(&pixels[( i)*stride], 0xff, stride);
+ memset(&pixels[(height-1-i)*stride], 0xff, stride);
+ }
+ for (int i = 0; i < height; i++) {
+ memset(&pixels[(i*stride) ], 0xff, border*4);
+ memset(&pixels[(i*stride)+((width-border)*4)], 0xff, border*4);
+ }
+#endif
+
+ /* Load the GL texture from the main thread */
+ grits_tile_load_pixbuf(tile, pixbuf);
+ g_debug("GritsPluginSat: _load_tile_thread end %p", g_thread_self());
}
-static gpointer _update_tiles(gpointer _self)
+static void _load_tile_func(GritsTile *tile, gpointer _sat)
{
- g_debug("GisPluginSat: _update_tiles");
- GisPluginSat *self = _self;
- g_mutex_lock(self->mutex);
- gdouble lat, lon, elev;
- gis_viewer_get_location(self->viewer, &lat, &lon, &elev);
- gis_tile_update(self->tiles,
- MAX_RESOLUTION, TILE_WIDTH, TILE_WIDTH,
- lat, lon, elev,
- _load_tile, self);
- gis_tile_gc(self->tiles, time(NULL)-10,
- _free_tile, self);
- g_mutex_unlock(self->mutex);
- return NULL;
+ g_debug("GritsPluginSat: __load_tile_func - tile=%p", tile);
+ GritsPluginSat *sat = _sat;
+ g_thread_pool_push(sat->threads, tile, NULL);
}
/*************
* Callbacks *
*************/
-static void _on_location_changed(GisViewer *viewer,
- gdouble lat, gdouble lon, gdouble elev, GisPluginSat *self)
+static void _on_location_changed(GritsViewer *viewer,
+ gdouble lat, gdouble lon, gdouble elev, GritsPluginSat *sat)
{
- g_thread_create(_update_tiles, self, FALSE, NULL);
+ GritsPoint eye = {lat, lon, elev};
+ grits_tile_update(sat->tiles, &eye,
+ MAX_RESOLUTION, TILE_WIDTH, TILE_WIDTH,
+ _load_tile_func, sat);
+ grits_tile_gc(sat->tiles, time(NULL)-10, NULL, sat);
}
/***********
* Methods *
***********/
-GisPluginSat *gis_plugin_sat_new(GisViewer *viewer)
+/**
+ * grits_plugin_sat_new:
+ * @viewer: the #GritsViewer to use for drawing
+ *
+ * Create a new instance of the satellite plugin.
+ *
+ * Returns: the new #GritsPluginSat
+ */
+GritsPluginSat *grits_plugin_sat_new(GritsViewer *viewer)
{
- g_debug("GisPluginSat: new");
- GisPluginSat *self = g_object_new(GIS_TYPE_PLUGIN_SAT, NULL);
- self->viewer = g_object_ref(viewer);
+ g_debug("GritsPluginSat: new");
+ GritsPluginSat *sat = g_object_new(GRITS_TYPE_PLUGIN_SAT, NULL);
+ sat->viewer = g_object_ref(viewer);
/* Load initial tiles */
- _load_tile(self->tiles, self);
- g_thread_create(_update_tiles, self, FALSE, NULL);
+ gdouble lat, lon, elev;
+ grits_viewer_get_location(viewer, &lat, &lon, &elev);
+ _on_location_changed(viewer, lat, lon, elev, sat);
/* Connect signals */
- self->sigid = g_signal_connect(self->viewer, "location-changed",
- G_CALLBACK(_on_location_changed), self);
+ sat->sigid = g_signal_connect(sat->viewer, "location-changed",
+ G_CALLBACK(_on_location_changed), sat);
/* Add renderers */
- gis_viewer_add(viewer, GIS_OBJECT(self->tiles), GIS_LEVEL_WORLD, 0);
+ grits_viewer_add(viewer, GRITS_OBJECT(sat->tiles), GRITS_LEVEL_WORLD, FALSE);
- return self;
+ return sat;
}
* GObject code *
****************/
/* Plugin init */
-static void gis_plugin_sat_plugin_init(GisPluginInterface *iface);
-G_DEFINE_TYPE_WITH_CODE(GisPluginSat, gis_plugin_sat, G_TYPE_OBJECT,
- G_IMPLEMENT_INTERFACE(GIS_TYPE_PLUGIN,
- gis_plugin_sat_plugin_init));
-static void gis_plugin_sat_plugin_init(GisPluginInterface *iface)
+static void grits_plugin_sat_plugin_init(GritsPluginInterface *iface);
+G_DEFINE_TYPE_WITH_CODE(GritsPluginSat, grits_plugin_sat, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE(GRITS_TYPE_PLUGIN,
+ grits_plugin_sat_plugin_init));
+static void grits_plugin_sat_plugin_init(GritsPluginInterface *iface)
{
- g_debug("GisPluginSat: plugin_init");
+ g_debug("GritsPluginSat: plugin_init");
/* Add methods to the interface */
}
/* Class/Object init */
-static void gis_plugin_sat_init(GisPluginSat *self)
+static void grits_plugin_sat_init(GritsPluginSat *sat)
{
- g_debug("GisPluginSat: init");
+ g_debug("GritsPluginSat: init");
/* Set defaults */
- self->mutex = g_mutex_new();
- self->tiles = gis_tile_new(NULL, NORTH, SOUTH, EAST, WEST);
- self->wms = gis_wms_new(
+ sat->threads = g_thread_pool_new(_load_tile_thread, 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",
"bmng/", "jpg", TILE_WIDTH, TILE_HEIGHT);
+ g_object_ref(sat->tiles);
}
-static void gis_plugin_sat_dispose(GObject *gobject)
+static void grits_plugin_sat_dispose(GObject *gobject)
{
- g_debug("GisPluginSat: dispose");
- GisPluginSat *self = GIS_PLUGIN_SAT(gobject);
+ g_debug("GritsPluginSat: dispose");
+ GritsPluginSat *sat = GRITS_PLUGIN_SAT(gobject);
+ sat->aborted = TRUE;
/* Drop references */
- if (self->viewer) {
- g_signal_handler_disconnect(self->viewer, self->sigid);
- g_object_unref(self->viewer);
- self->viewer = NULL;
+ if (sat->viewer) {
+ GritsViewer *viewer = sat->viewer;
+ g_signal_handler_disconnect(viewer, sat->sigid);
+ soup_session_abort(sat->wms->http->soup);
+ g_thread_pool_free(sat->threads, TRUE, TRUE);
+ sat->viewer = NULL;
+ grits_viewer_remove(viewer, GRITS_OBJECT(sat->tiles));
+ g_object_unref(sat->tiles);
+ g_object_unref(viewer);
}
- G_OBJECT_CLASS(gis_plugin_sat_parent_class)->dispose(gobject);
+ G_OBJECT_CLASS(grits_plugin_sat_parent_class)->dispose(gobject);
}
-static void gis_plugin_sat_finalize(GObject *gobject)
+static void grits_plugin_sat_finalize(GObject *gobject)
{
- g_debug("GisPluginSat: finalize");
- GisPluginSat *self = GIS_PLUGIN_SAT(gobject);
+ g_debug("GritsPluginSat: finalize");
+ GritsPluginSat *sat = GRITS_PLUGIN_SAT(gobject);
/* Free data */
- gis_tile_free(self->tiles, _free_tile, self);
- gis_wms_free(self->wms);
- g_mutex_free(self->mutex);
- G_OBJECT_CLASS(gis_plugin_sat_parent_class)->finalize(gobject);
+ grits_wms_free(sat->wms);
+ grits_tile_free(sat->tiles, NULL, sat);
+ G_OBJECT_CLASS(grits_plugin_sat_parent_class)->finalize(gobject);
}
-static void gis_plugin_sat_class_init(GisPluginSatClass *klass)
+static void grits_plugin_sat_class_init(GritsPluginSatClass *klass)
{
- g_debug("GisPluginSat: class_init");
+ g_debug("GritsPluginSat: class_init");
GObjectClass *gobject_class = (GObjectClass*)klass;
- gobject_class->dispose = gis_plugin_sat_dispose;
- gobject_class->finalize = gis_plugin_sat_finalize;
+ gobject_class->dispose = grits_plugin_sat_dispose;
+ gobject_class->finalize = grits_plugin_sat_finalize;
}
projects / grits / blobdiff