* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <gtk/gtkgl.h>
+#include <time.h>
#include <GL/gl.h>
#include <gis.h>
#include "bmng.h"
-/***********
- * Helpers *
- ***********/
-static gboolean rotate(gpointer _self)
+#define MAX_RESOLUTION 500
+#define TILE_WIDTH 1024
+#define TILE_HEIGHT 512
+
+static void _load_tile(GisTile *tile, gpointer _self)
+{
+ GisPluginBmng *self = _self;
+ g_debug("GisPluginBmng: _load_tile start");
+
+ char *path = gis_wms_make_local(self->wms, tile);
+ GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(path, NULL);
+ g_free(path);
+
+ 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_opengl_begin(self->opengl);
+ 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_opengl_end(self->opengl);
+
+ tile->data = tex;
+ gis_opengl_redraw(self->opengl);
+ g_object_unref(pixbuf);
+}
+
+static void _free_tile(GisTile *tile, gpointer _self)
+{
+ GisPluginBmng *self = _self;
+ g_debug("GisPluginBmng: _free_tile: %p=%d", tile->data, *(guint*)tile->data);
+ guint *data = tile->data;
+ glDeleteTextures(1, data);
+ g_free(data);
+}
+
+static gpointer _update_tiles(gpointer _self)
{
+ g_debug("GisPluginBmng: _update_tiles");
GisPluginBmng *self = _self;
- if (gtk_toggle_button_get_active(self->button)) {
- self->rotation += 1.0;
- gis_opengl_redraw(self->opengl);
- }
- return TRUE;
+ gdouble lat, lon, elev;
+ gis_view_get_location(self->view, &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);
+ return NULL;
}
+/*************
+ * Callbacks *
+ *************/
+static void _on_location_changed(GisView *view, gdouble lat, gdouble lon, gdouble elev,
+ GisPluginBmng *self)
+{
+ _update_tiles(self);
+}
/***********
* Methods *
{
g_debug("GisPluginBmng: new");
GisPluginBmng *self = g_object_new(GIS_TYPE_PLUGIN_BMNG, NULL);
+ self->view = view;
self->opengl = opengl;
- return self;
-}
+ /* Load initial tiles */
+ _load_tile(self->tiles, self);
+ _update_tiles(self);
-static GtkWidget *gis_plugin_bmng_get_config(GisPlugin *_self)
-{
- GisPluginBmng *self = GIS_PLUGIN_BMNG(_self);
- return GTK_WIDGET(self->button);
+ /* Connect signals */
+ g_signal_connect(self->view, "location-changed", G_CALLBACK(_on_location_changed), self);
+
+ return self;
}
static void gis_plugin_bmng_expose(GisPlugin *_self)
{
GisPluginBmng *self = GIS_PLUGIN_BMNG(_self);
g_debug("GisPluginBmng: expose");
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(1,-1, -1,1, -10,10);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- float light_ambient[] = {0.1f, 0.1f, 0.0f, 1.0f};
- float light_diffuse[] = {0.9f, 0.9f, 0.9f, 1.0f};
- float light_position[] = {-30.0f, 50.0f, 40.0f, 1.0f};
- glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
- glLightfv(GL_LIGHT0, GL_POSITION, light_position);
- glEnable(GL_COLOR_MATERIAL);
-
- glTranslatef(-0.5, -0.5, -2);
- glRotatef(self->rotation, 1, 1, 0);
- glColor4f(0.9, 0.9, 0.7, 1.0);
- glDisable(GL_CULL_FACE);
- gdk_gl_draw_teapot(TRUE, 0.25);
+ gis_opengl_render_tiles(self->opengl, self->tiles);
}
{
g_debug("GisPluginBmng: plugin_init");
/* Add methods to the interface */
- iface->expose = gis_plugin_bmng_expose;
- iface->get_config = gis_plugin_bmng_get_config;
+ iface->expose = gis_plugin_bmng_expose;
}
/* Class/Object init */
static void gis_plugin_bmng_init(GisPluginBmng *self)
{
g_debug("GisPluginBmng: init");
/* Set defaults */
- self->button = GTK_TOGGLE_BUTTON(gtk_toggle_button_new_with_label("Rotate"));
- self->rotate_id = g_timeout_add(1000/60, rotate, self);
- self->rotation = 30.0;
- self->opengl = NULL;
+ self->tiles = gis_tile_new(NULL, NORTH, SOUTH, EAST, WEST);
+ self->wms = gis_wms_new(
+ "http://www.nasa.network.com/wms", "bmng200406", "image/jpeg",
+ "bmng", ".jpg", TILE_WIDTH, TILE_HEIGHT);
}
static void gis_plugin_bmng_dispose(GObject *gobject)
{
g_debug("GisPluginBmng: dispose");
GisPluginBmng *self = GIS_PLUGIN_BMNG(gobject);
- g_source_remove(self->rotate_id);
/* Drop references */
G_OBJECT_CLASS(gis_plugin_bmng_parent_class)->dispose(gobject);
}
g_debug("GisPluginBmng: finalize");
GisPluginBmng *self = GIS_PLUGIN_BMNG(gobject);
/* Free data */
+ gis_tile_free(self->tiles, _free_tile, self);
+ gis_wms_free(self->wms);
G_OBJECT_CLASS(gis_plugin_bmng_parent_class)->finalize(gobject);
}
projects / grits / blobdiff