]> Pileus Git - grits/blobdiff - src/plugins/map.c
Move threading out of tile update/gc functions
[grits] / src / plugins / map.c
index b1363e44a438f1e5a5d8ff608359432335ba3285..255f67cf2980d1bfe31e7ec250d7e095c616d218 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
+ * Copyright (C) 2009-2011 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
  */
 
 #include <time.h>
-#include <stdlib.h>
 #include <glib/gstdio.h>
-#include <GL/gl.h>
 
 #include <grits.h>
 
 #include "map.h"
 
-#define MAX_RESOLUTION 500
-#define TILE_WIDTH     1024
-#define TILE_HEIGHT    512
+#define MAX_RESOLUTION 1
+#define TILE_WIDTH     256
+#define TILE_HEIGHT    256
+
+//#define MAX_RESOLUTION 100
+//#define TILE_WIDTH     1024
+//#define TILE_HEIGHT    512
 
 static const guchar colormap[][2][4] = {
-       {{0x73, 0x91, 0xad}, {0x73, 0x91, 0xad, 0x20}}, // Oceans
+       {{0x73, 0x91, 0xad}, {0x73, 0x91, 0xad, 0x00}}, // Oceans
        {{0xf6, 0xee, 0xee}, {0xf6, 0xee, 0xee, 0x00}}, // Ground
        {{0xff, 0xff, 0xff}, {0xff, 0xff, 0xff, 0xff}}, // Borders
        {{0x73, 0x93, 0xad}, {0x73, 0x93, 0xad, 0x40}}, // Lakes
        {{0xff, 0xe1, 0x80}, {0xff, 0xe1, 0x80, 0x60}}, // Cities
 };
 
-struct _LoadTileData {
-       GritsPluginMap *map;
-       GritsTile      *tile;
-       gchar          *path;
-};
-static gboolean _load_tile_cb(gpointer _data)
+static void _load_tile_thread(gpointer _tile, gpointer _map)
 {
-       struct _LoadTileData *data = _data;
-       GritsPluginMap *map  = data->map;
-       GritsTile      *tile = data->tile;
-       gchar          *path = data->path;
-       g_free(data);
+       GritsTile      *tile = _tile;
+       GritsPluginMap *map  = _map;
+
+       g_debug("GritsPluginMap: _load_tile_thread start %p - tile=%p",
+                       g_thread_self(), tile);
+       if (map->aborted) {
+               g_debug("GritsPluginMap: _load_tile_thread - aborted");
+               return;
+       }
+
+       /* Download tile */
+       gchar *path = grits_tms_fetch(map->tms, tile, GRITS_ONCE, NULL, NULL);
+       //gchar *path = grits_wms_fetch(map->wms, tile, GRITS_ONCE, NULL, NULL);
+       if (!path) return; // Canceled/error
 
        /* Load pixbuf */
-       g_debug("GritsPluginMap: _load_tile_cb start");
        GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, NULL);
        if (!pixbuf) {
-               g_warning("GritsPluginMap: _load_tile - Error loading pixbuf %s", path);
+               g_warning("GritsPluginMap: _load_tile_thread - 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);
-
-       for (int i = 0; i < width*height; i++) {
+#ifdef MAP_MAP_COLORS
+       /* Map texture colors, if needed */
+       gint    width  = gdk_pixbuf_get_width(pixbuf);
+       gint    height = gdk_pixbuf_get_height(pixbuf);
+       guchar *pixels = gdk_pixbuf_get_pixels(pixbuf);
+       for (int i = 0; i < width * height; i++) {
                for (int j = 0; j < G_N_ELEMENTS(colormap); j++) {
                        if (pixels[i*4+0] == colormap[j][0][0] &&
                            pixels[i*4+1] == colormap[j][0][1] &&
@@ -87,67 +91,18 @@ static gboolean _load_tile_cb(gpointer _data)
                        }
                }
        }
+#endif
 
-       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(map->viewer));
-       g_object_unref(pixbuf);
-       return FALSE;
+       /* Load the GL texture from the main thread */
+       grits_tile_load_pixbuf(tile, pixbuf);
+       g_debug("GritsPluginMap: _load_tile_thread end %p", g_thread_self());
 }
 
-static void _load_tile(GritsTile *tile, gpointer _map)
+static void _load_tile_func(GritsTile *tile, gpointer _map)
 {
+       g_debug("GritsPluginMap: _load_tile_func - tile=%p", tile);
        GritsPluginMap *map = _map;
-       g_debug("GritsPluginMap: _load_tile start %p", g_thread_self());
-       struct _LoadTileData *data = g_new0(struct _LoadTileData, 1);
-       data->map  = map;
-       data->tile = tile;
-       data->path = grits_wms_fetch(map->wms, tile, GRITS_ONCE, NULL, NULL);
-       g_idle_add_full(G_PRIORITY_LOW, _load_tile_cb, data, NULL);
-       g_debug("GritsPluginMap: _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(GritsTile *tile, gpointer _map)
-{
-       g_debug("GritsPluginMap: _free_tile: %p", tile->data);
-       if (tile->data)
-               g_idle_add_full(G_PRIORITY_LOW, _free_tile_cb, tile->data, NULL);
-}
-
-static gpointer _update_tiles(gpointer _map)
-{
-       g_debug("GritsPluginMap: _update_tiles");
-       GritsPluginMap *map = _map;
-       if (!g_mutex_trylock(map->mutex))
-               return NULL;
-       GritsPoint eye;
-       grits_viewer_get_location(map->viewer, &eye.lat, &eye.lon, &eye.elev);
-       grits_tile_update(map->tiles, &eye,
-                       MAX_RESOLUTION, TILE_WIDTH, TILE_WIDTH,
-                       _load_tile, map);
-       grits_tile_gc(map->tiles, time(NULL)-10,
-                       _free_tile, map);
-       g_mutex_unlock(map->mutex);
-       return NULL;
+       g_thread_pool_push(map->threads, tile, NULL);
 }
 
 /*************
@@ -156,14 +111,11 @@ static gpointer _update_tiles(gpointer _map)
 static void _on_location_changed(GritsViewer *viewer,
                gdouble lat, gdouble lon, gdouble elev, GritsPluginMap *map)
 {
-       g_thread_create(_update_tiles, map, FALSE, NULL);
-}
-
-static gpointer _threaded_init(GritsPluginMap *map)
-{
-       _load_tile(map->tiles, map);
-       _update_tiles(map);
-       return NULL;
+       GritsPoint eye = {lat, lon, elev};
+       grits_tile_update(map->tiles, &eye,
+                       MAX_RESOLUTION, TILE_WIDTH, TILE_WIDTH,
+                       _load_tile_func, map);
+       grits_tile_gc(map->tiles, time(NULL)-10, NULL, map);
 }
 
 /***********
@@ -184,14 +136,16 @@ GritsPluginMap *grits_plugin_map_new(GritsViewer *viewer)
        map->viewer = g_object_ref(viewer);
 
        /* Load initial tiles */
-       g_thread_create((GThreadFunc)_threaded_init, map, FALSE, NULL);
+       gdouble lat, lon, elev;
+       grits_viewer_get_location(viewer, &lat, &lon, &elev);
+       _on_location_changed(viewer, lat, lon, elev, map);
 
        /* Connect signals */
        map->sigid = g_signal_connect(map->viewer, "location-changed",
                        G_CALLBACK(_on_location_changed), map);
 
        /* Add renderers */
-       grits_viewer_add(viewer, GRITS_OBJECT(map->tiles), GRITS_LEVEL_OVERLAY-1, 0);
+       grits_viewer_add(viewer, GRITS_OBJECT(map->tiles), GRITS_LEVEL_WORLD, FALSE);
 
        return map;
 }
@@ -215,26 +169,34 @@ static void grits_plugin_map_init(GritsPluginMap *map)
 {
        g_debug("GritsPluginMap: init");
        /* Set defaults */
-       map->mutex = g_mutex_new();
-       map->tiles = grits_tile_new(NULL, NORTH, SOUTH, EAST, WEST);
-       map->wms   = grits_wms_new(
-               "http://labs.metacarta.com/wms/vmap0", "basic", "image/png",
-               "osm/", "png", TILE_WIDTH, TILE_HEIGHT);
+       map->threads = g_thread_pool_new(_load_tile_thread, map, 1, FALSE, NULL);
+       map->tiles = grits_tile_new(NULL, 85.0511, -85.0511, EAST, WEST);
+       map->tms   = grits_tms_new("http://tile.openstreetmap.org",
+               "osmtile/", "png");
+       map->tiles->proj = GRITS_PROJ_MERCATOR;
+       //map->tiles = grits_tile_new(NULL, NORTH, SOUTH, EAST, WEST);
+       //map->wms   = grits_wms_new(
+       //      "http://vmap0.tiles.osgeo.org/wms/vmap0",
+       //      "basic,priroad,secroad,depthcontour,clabel,statelabel",
+       //       "image/png", "osm/", "png", TILE_WIDTH, TILE_HEIGHT);
        g_object_ref(map->tiles);
 }
 static void grits_plugin_map_dispose(GObject *gobject)
 {
        g_debug("GritsPluginMap: dispose");
        GritsPluginMap *map = GRITS_PLUGIN_MAP(gobject);
+       map->aborted = TRUE;
        /* Drop references */
        if (map->viewer) {
-               g_signal_handler_disconnect(map->viewer, map->sigid);
-               grits_viewer_remove(map->viewer, map->tiles);
-               soup_session_abort(map->wms->http->soup);
-               while (gtk_events_pending())
-                       gtk_main_iteration();
-               g_object_unref(map->viewer);
+               GritsViewer *viewer = map->viewer;
+               g_signal_handler_disconnect(viewer, map->sigid);
+               soup_session_abort(map->tms->http->soup);
+               //soup_session_abort(map->wms->http->soup);
+               g_thread_pool_free(map->threads, TRUE, TRUE);
                map->viewer = NULL;
+               grits_viewer_remove(viewer, GRITS_OBJECT(map->tiles));
+               g_object_unref(map->tiles);
+               g_object_unref(viewer);
        }
        G_OBJECT_CLASS(grits_plugin_map_parent_class)->dispose(gobject);
 }
@@ -243,9 +205,9 @@ static void grits_plugin_map_finalize(GObject *gobject)
        g_debug("GritsPluginMap: finalize");
        GritsPluginMap *map = GRITS_PLUGIN_MAP(gobject);
        /* Free data */
-       grits_tile_free(map->tiles, _free_tile, map);
-       grits_wms_free(map->wms);
-       g_mutex_free(map->mutex);
+       grits_tms_free(map->tms);
+       //grits_wms_free(map->wms);
+       grits_tile_free(map->tiles, NULL, map);
        G_OBJECT_CLASS(grits_plugin_map_parent_class)->finalize(gobject);
 
 }