2 * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 /* Tessellation, "finding intersecting triangles" */
19 /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */
20 /* http://www.opengl.org/wiki/Alpha_Blending */
25 #include <gdk/gdkkeysyms.h>
27 #include <gtk/gtkgl.h>
31 #include "gis-opengl.h"
33 #include "gis-object.h"
36 #define FOV_DIST 2000.0
37 #define MPPX(dist) (4*dist/FOV_DIST)
44 static void _gis_opengl_begin(GisOpenGL *self)
46 g_assert(GIS_IS_OPENGL(self));
48 GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(self));
49 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(self));
51 if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
52 g_assert_not_reached();
55 static void _gis_opengl_end(GisOpenGL *self)
57 g_assert(GIS_IS_OPENGL(self));
58 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(self));
59 gdk_gl_drawable_gl_end(gldrawable);
62 static void _set_visuals(GisOpenGL *self)
64 glMatrixMode(GL_MODELVIEW);
68 double lat, lon, elev, rx, ry, rz;
69 gis_viewer_get_location(GIS_VIEWER(self), &lat, &lon, &elev);
70 gis_viewer_get_rotation(GIS_VIEWER(self), &rx, &ry, &rz);
71 glRotatef(rx, 1, 0, 0);
72 glRotatef(rz, 0, 0, 1);
76 float light_ambient[] = {0.7f, 0.7f, 0.7f, 1.0f};
77 float light_diffuse[] = {2.0f, 2.0f, 2.0f, 1.0f};
79 float light_ambient[] = {0.2f, 0.2f, 0.2f, 1.0f};
80 float light_diffuse[] = {5.0f, 5.0f, 5.0f, 1.0f};
82 float light_position[] = {-13*EARTH_R, 1*EARTH_R, 3*EARTH_R, 1.0f};
83 glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
84 glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
85 glLightfv(GL_LIGHT0, GL_POSITION, light_position);
87 glEnable(GL_LIGHTING);
89 float material_ambient[] = {0.2, 0.2, 0.2, 1.0};
90 float material_diffuse[] = {0.8, 0.8, 0.8, 1.0};
91 float material_specular[] = {0.1, 0.1, 0.1, 1.0};
92 float material_emission[] = {0.0, 0.0, 0.0, 1.0};
93 glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, material_ambient);
94 glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, material_diffuse);
95 glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, material_specular);
96 glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, material_emission);
97 glDisable(GL_TEXTURE_2D);
98 glDisable(GL_COLOR_MATERIAL);
101 glTranslatef(0, 0, -elev2rad(elev));
102 glRotatef(lat, 1, 0, 0);
103 glRotatef(-lon, 0, 1, 0);
105 glDisable(GL_ALPHA_TEST);
107 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
112 glEnable(GL_CULL_FACE);
116 glDepthFunc(GL_LEQUAL);
117 glEnable(GL_DEPTH_TEST);
119 glEnable(GL_LINE_SMOOTH);
121 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
122 //glShadeModel(GL_FLAT);
124 roam_sphere_update_view(self->sphere);
128 /********************
130 ********************/
131 static void _draw_marker(GisOpenGL *self, GisMarker *marker)
133 GisPoint *point = gis_object_center(GIS_OBJECT(marker));
135 gis_viewer_project(GIS_VIEWER(self),
136 point->lat, point->lon, point->elev,
141 //g_debug("GisOpenGL: draw_marker - %s pz=%f ", marker->label, pz);
143 cairo_surface_t *surface = cairo_get_target(marker->cairo);
144 gdouble width = cairo_image_surface_get_width(surface);
145 gdouble height = cairo_image_surface_get_height(surface);
147 glMatrixMode(GL_PROJECTION); glLoadIdentity();
148 glMatrixMode(GL_MODELVIEW); glLoadIdentity();
149 glOrtho(0, GTK_WIDGET(self)->allocation.width,
150 0, GTK_WIDGET(self)->allocation.height, -1, 1);
151 glTranslated(px - marker->xoff,
152 py - marker->yoff, 0);
154 glDisable(GL_LIGHTING);
155 glDisable(GL_COLOR_MATERIAL);
156 glDisable(GL_DEPTH_TEST);
157 glEnable(GL_TEXTURE_2D);
158 glBindTexture(GL_TEXTURE_2D, marker->tex);
160 glTexCoord2f(1, 1); glVertex3f(width, 0 , 0);
161 glTexCoord2f(1, 0); glVertex3f(width, height, 0);
162 glTexCoord2f(0, 0); glVertex3f(0 , height, 0);
163 glTexCoord2f(0, 1); glVertex3f(0 , 0 , 0);
167 static void _draw_callback(GisOpenGL *self, GisCallback *callback)
169 callback->callback(callback, callback->user_data);
172 static void _draw_object(GisOpenGL *self, GisObject *object)
174 //g_debug("GisOpenGL: draw_object");
175 /* Skip out of range objects */
176 if (object->lod > 0) {
177 gdouble eye[3], obj[3];
178 gis_viewer_get_location(GIS_VIEWER(self), &eye[0], &eye[1], &eye[2]);
179 lle2xyz(eye[0], eye[1], eye[2], &eye[0], &eye[1], &eye[2]);
180 lle2xyz(object->center.lat, object->center.lon, object->center.elev,
181 &obj[0], &obj[1], &obj[2]);
182 gdouble dist = distd(obj, eye);
183 if (object->lod < dist)
188 glMatrixMode(GL_PROJECTION); glPushMatrix();
189 glMatrixMode(GL_MODELVIEW); glPushMatrix();
190 glPushAttrib(GL_ALL_ATTRIB_BITS);
191 switch (object->type) {
192 case GIS_TYPE_MARKER:
193 _draw_marker(self, GIS_MARKER(object));
195 case GIS_TYPE_CALLBACK:
196 _draw_callback(self, GIS_CALLBACK(object));
202 glMatrixMode(GL_PROJECTION); glPopMatrix();
203 glMatrixMode(GL_MODELVIEW); glPopMatrix();
206 static void _load_object(GisOpenGL *self, GisObject *object)
208 g_debug("GisOpenGL: load_object");
209 switch (object->type) {
210 case GIS_TYPE_MARKER: {
211 GisMarker *marker = GIS_MARKER(object);
212 cairo_surface_t *surface = cairo_get_target(marker->cairo);
213 gdouble width = cairo_image_surface_get_width(surface);
214 gdouble height = cairo_image_surface_get_height(surface);
216 _gis_opengl_begin(self);
217 glEnable(GL_TEXTURE_2D);
218 glGenTextures(1, &marker->tex);
219 glBindTexture(GL_TEXTURE_2D, marker->tex);
221 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
222 glPixelStorei(GL_PACK_ALIGNMENT, 1);
223 glTexImage2D(GL_TEXTURE_2D, 0, 4, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
224 cairo_image_surface_get_data(surface));
225 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
226 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
227 g_debug("load_texture: %d", marker->tex);
228 _gis_opengl_end(self);
236 static void _unload_object(GisOpenGL *self, GisObject *object)
238 g_debug("GisOpenGL: unload_object");
239 switch (object->type) {
240 case GIS_TYPE_MARKER: {
241 GisMarker *marker = GIS_MARKER(object);
242 g_debug("delete_texture: %d", marker->tex);
243 glDeleteTextures(1, &marker->tex);
255 /* The unsorted/sroted GLists are blank head nodes,
256 * This way us we can remove objects from the level just by fixing up links
257 * I.e. we don't need to do a lookup to remove an object if we have its GList */
263 static void on_realize(GisOpenGL *self, gpointer _)
265 g_debug("GisOpenGL: on_realize");
267 g_mutex_lock(self->sphere_lock);
268 roam_sphere_update_errors(self->sphere);
269 g_mutex_unlock(self->sphere_lock);
271 static gboolean on_configure(GisOpenGL *self, GdkEventConfigure *event, gpointer _)
273 g_debug("GisOpenGL: on_configure");
274 _gis_opengl_begin(self);
276 double width = GTK_WIDGET(self)->allocation.width;
277 double height = GTK_WIDGET(self)->allocation.height;
279 /* Setup OpenGL Window */
280 glViewport(0, 0, width, height);
281 glMatrixMode(GL_PROJECTION);
283 double ang = atan(height/FOV_DIST);
284 gluPerspective(rad2deg(ang)*2, width/height, 1, 10*EARTH_R);
287 g_mutex_lock(self->sphere_lock);
288 roam_sphere_update_errors(self->sphere);
289 g_mutex_unlock(self->sphere_lock);
292 _gis_opengl_end(self);
296 static gboolean _draw_level(gpointer key, gpointer value, gpointer user_data)
298 g_debug("GisOpenGL: _draw_level - level=%-4d", (int)key);
299 GisOpenGL *self = user_data;
300 struct RenderLevel *level = value;
301 int nsorted = 0, nunsorted = 0;
304 /* Draw opaque objects without sorting */
306 glClear(GL_DEPTH_BUFFER_BIT);
307 for (cur = level->unsorted.next; cur; cur = cur->next, nunsorted++)
308 _draw_object(self, GIS_OBJECT(cur->data));
310 /* Freeze depth buffer and draw transparent objects sorted */
312 //glDepthMask(FALSE);
313 glAlphaFunc(GL_GREATER, 0.1);
314 for (cur = level->sorted.next; cur; cur = cur->next, nsorted++)
315 _draw_object(self, GIS_OBJECT(cur->data));
317 /* TODO: Prune empty levels */
319 g_debug("GisOpenGL: _draw_level - drew %d,%d objects",
324 static gboolean on_expose(GisOpenGL *self, GdkEventExpose *event, gpointer _)
326 g_debug("GisOpenGL: on_expose - begin");
327 _gis_opengl_begin(self);
329 glClear(GL_COLOR_BUFFER_BIT);
333 glColor4f(0.0, 0.0, 9.0, 0.6);
334 glDisable(GL_TEXTURE_2D);
335 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
336 roam_sphere_draw(self->sphere);
337 //roam_sphere_draw_normals(self->sphere);
339 g_tree_foreach(self->objects, _draw_level, self);
340 if (self->wireframe) {
341 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
342 roam_sphere_draw(self->sphere);
346 GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(self));
347 gdk_gl_drawable_swap_buffers(gldrawable);
349 _gis_opengl_end(self);
350 g_debug("GisOpenGL: on_expose - end\n");
354 static gboolean on_key_press(GisOpenGL *self, GdkEventKey *event, gpointer _)
356 g_debug("GisOpenGL: on_key_press - key=%x, state=%x, plus=%x",
357 event->keyval, event->state, GDK_plus);
359 guint kv = event->keyval;
363 self->wireframe = !self->wireframe;
364 gtk_widget_queue_draw(GTK_WIDGET(self));
367 else if (kv == GDK_n) roam_sphere_split_one(self->sphere);
368 else if (kv == GDK_p) roam_sphere_merge_one(self->sphere);
369 else if (kv == GDK_r) roam_sphere_split_merge(self->sphere);
370 else if (kv == GDK_u) roam_sphere_update_errors(self->sphere);
372 gtk_widget_queue_draw(GTK_WIDGET(self));
379 static gboolean _update_errors_cb(gpointer sphere)
381 roam_sphere_update_errors(sphere);
384 static void on_view_changed(GisOpenGL *self,
385 gdouble _1, gdouble _2, gdouble _3)
387 g_debug("GisOpenGL: on_view_changed");
389 _gis_opengl_begin(self);
392 g_idle_add_full(G_PRIORITY_HIGH_IDLE+30, _update_errors_cb, self->sphere, NULL);
393 //roam_sphere_update_errors(self->sphere);
395 _gis_opengl_end(self);
399 static gboolean on_idle(GisOpenGL *self)
401 //g_debug("GisOpenGL: on_idle");
403 _gis_opengl_begin(self);
404 g_mutex_lock(self->sphere_lock);
405 if (roam_sphere_split_merge(self->sphere))
406 gtk_widget_queue_draw(GTK_WIDGET(self));
407 g_mutex_unlock(self->sphere_lock);
408 _gis_opengl_end(self);
414 /*********************
415 * GisViewer methods *
416 *********************/
417 GisViewer *gis_opengl_new(GisPlugins *plugins, GisPrefs *prefs)
419 g_debug("GisOpenGL: new");
420 GisViewer *self = g_object_new(GIS_TYPE_OPENGL, NULL);
421 gis_viewer_setup(self, plugins, prefs);
425 static void gis_opengl_center_position(GisViewer *_self, gdouble lat, gdouble lon, gdouble elev)
427 GisOpenGL *self = GIS_OPENGL(_self);
428 glRotatef(lon, 0, 1, 0);
429 glRotatef(-lat, 1, 0, 0);
430 glTranslatef(0, 0, elev2rad(elev));
433 static void gis_opengl_project(GisViewer *_self,
434 gdouble lat, gdouble lon, gdouble elev,
435 gdouble *px, gdouble *py, gdouble *pz)
437 GisOpenGL *self = GIS_OPENGL(_self);
439 lle2xyz(lat, lon, elev, &x, &y, &z);
441 self->sphere->view->model,
442 self->sphere->view->proj,
443 self->sphere->view->view,
447 static void gis_opengl_render_tile(GisViewer *_self, GisTile *tile)
449 GisOpenGL *self = GIS_OPENGL(_self);
450 if (!tile || !tile->data)
452 GList *triangles = roam_sphere_get_intersect(self->sphere, FALSE,
453 tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
455 g_warning("GisOpenGL: render_tiles - No triangles to draw: edges=%f,%f,%f,%f",
456 tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
457 //g_message("rendering %4d triangles for tile edges=%7.2f,%7.2f,%7.2f,%7.2f",
458 // g_list_length(triangles), tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
459 for (GList *cur = triangles; cur; cur = cur->next) {
460 RoamTriangle *tri = cur->data;
462 gdouble lat[3] = {tri->p.r->lat, tri->p.m->lat, tri->p.l->lat};
463 gdouble lon[3] = {tri->p.r->lon, tri->p.m->lon, tri->p.l->lon};
465 if (lon[0] < -90 || lon[1] < -90 || lon[2] < -90) {
466 if (lon[0] > 90) lon[0] -= 360;
467 if (lon[1] > 90) lon[1] -= 360;
468 if (lon[2] > 90) lon[2] -= 360;
471 gdouble n = tile->edge.n;
472 gdouble s = tile->edge.s;
473 gdouble e = tile->edge.e;
474 gdouble w = tile->edge.w;
476 gdouble londist = e - w;
477 gdouble latdist = n - s;
480 {(lon[0]-w)/londist, 1-(lat[0]-s)/latdist},
481 {(lon[1]-w)/londist, 1-(lat[1]-s)/latdist},
482 {(lon[2]-w)/londist, 1-(lat[2]-s)/latdist},
485 //if ((lat[0] == 90 && (xy[0][0] < 0 || xy[0][0] > 1)) ||
486 // (lat[1] == 90 && (xy[1][0] < 0 || xy[1][0] > 1)) ||
487 // (lat[2] == 90 && (xy[2][0] < 0 || xy[2][0] > 1)))
488 // g_message("w,e=%4.f,%4.f "
490 // "%4.1f,%4.0f,%4.2f,%4.2f "
491 // "%4.1f,%4.0f,%4.2f,%4.2f "
492 // "%4.1f,%4.0f,%4.2f,%4.2f ",
494 // lat[0], lon[0], xy[0][0], xy[0][1],
495 // lat[1], lon[1], xy[1][0], xy[1][1],
496 // lat[2], lon[2], xy[2][0], xy[2][1]);
499 if (lat[0] == 90 || lat[0] == -90) xy[0][0] = 0.5;
500 if (lat[1] == 90 || lat[1] == -90) xy[1][0] = 0.5;
501 if (lat[2] == 90 || lat[2] == -90) xy[2][0] = 0.5;
503 glEnable(GL_TEXTURE_2D);
504 glBindTexture(GL_TEXTURE_2D, *(guint*)tile->data);
505 glBegin(GL_TRIANGLES);
506 glNormal3dv(tri->p.r->norm); glTexCoord2dv(xy[0]); glVertex3dv((double*)tri->p.r);
507 glNormal3dv(tri->p.m->norm); glTexCoord2dv(xy[1]); glVertex3dv((double*)tri->p.m);
508 glNormal3dv(tri->p.l->norm); glTexCoord2dv(xy[2]); glVertex3dv((double*)tri->p.l);
511 g_list_free(triangles);
514 static void gis_opengl_render_tiles(GisViewer *_self, GisTile *tile)
516 GisOpenGL *self = GIS_OPENGL(_self);
517 /* Only render children if possible */
518 gboolean has_children = TRUE;
520 gis_tile_foreach(tile, child)
521 if (!child || !child->data)
522 has_children = FALSE;
524 /* Only render children */
525 gis_tile_foreach(tile, child)
526 gis_opengl_render_tiles(_self, child);
528 /* No children, render this tile */
529 gis_opengl_render_tile(_self, tile);
532 static void gis_opengl_set_height_func(GisViewer *_self, GisTile *tile,
533 RoamHeightFunc height_func, gpointer user_data, gboolean update)
535 GisOpenGL *self = GIS_OPENGL(_self);
538 /* TODO: get points? */
539 g_mutex_lock(self->sphere_lock);
540 GList *triangles = roam_sphere_get_intersect(self->sphere, TRUE,
541 tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
542 for (GList *cur = triangles; cur; cur = cur->next) {
543 RoamTriangle *tri = cur->data;
544 RoamPoint *points[] = {tri->p.l, tri->p.m, tri->p.r, tri->split};
545 for (int i = 0; i < G_N_ELEMENTS(points); i++) {
546 if (tile->edge.n >= points[i]->lat && points[i]->lat >= tile->edge.s &&
547 tile->edge.e >= points[i]->lon && points[i]->lon >= tile->edge.w) {
548 points[i]->height_func = height_func;
549 points[i]->height_data = user_data;
550 roam_point_update_height(points[i]);
554 g_list_free(triangles);
555 g_mutex_unlock(self->sphere_lock);
558 static void _gis_opengl_clear_height_func_rec(RoamTriangle *root)
562 RoamPoint *points[] = {root->p.l, root->p.m, root->p.r, root->split};
563 for (int i = 0; i < G_N_ELEMENTS(points); i++) {
564 points[i]->height_func = NULL;
565 points[i]->height_data = NULL;
566 roam_point_update_height(points[i]);
568 _gis_opengl_clear_height_func_rec(root->kids[0]);
569 _gis_opengl_clear_height_func_rec(root->kids[1]);
572 static void gis_opengl_clear_height_func(GisViewer *_self)
574 GisOpenGL *self = GIS_OPENGL(_self);
575 for (int i = 0; i < G_N_ELEMENTS(self->sphere->roots); i++)
576 _gis_opengl_clear_height_func_rec(self->sphere->roots[i]);
579 static void gis_opengl_begin(GisViewer *_self)
581 g_assert(GIS_IS_OPENGL(_self));
582 _gis_opengl_begin(GIS_OPENGL(_self));
585 static void gis_opengl_end(GisViewer *_self)
587 g_assert(GIS_IS_OPENGL(_self));
588 _gis_opengl_end(GIS_OPENGL(_self));
591 static gpointer gis_opengl_add(GisViewer *_self, GisObject *object,
592 gint key, gboolean sort)
594 g_assert(GIS_IS_OPENGL(_self));
595 GisOpenGL *self = GIS_OPENGL(_self);
596 _load_object(self, object);
597 struct RenderLevel *level = g_tree_lookup(self->objects, (gpointer)key);
599 level = g_new0(struct RenderLevel, 1);
600 g_tree_insert(self->objects, (gpointer)key, level);
602 GList *list = sort ? &level->sorted : &level->unsorted;
603 list->next = g_list_prepend(list->next, object);
607 static void gis_opengl_remove(GisViewer *_self, gpointer _link)
609 g_assert(GIS_IS_OPENGL(_self));
611 GisOpenGL *self = GIS_OPENGL(_self);
612 _unload_object(self, link->data);
613 /* Just unlink and free it (blowup link to avoid warnings) */
614 link = g_list_delete_link(NULL, link);
620 static int _objects_cmp(gconstpointer _a, gconstpointer _b)
622 gint a = (int)_a, b = (int)_b;
627 G_DEFINE_TYPE(GisOpenGL, gis_opengl, GIS_TYPE_VIEWER);
628 static void gis_opengl_init(GisOpenGL *self)
630 g_debug("GisOpenGL: init");
632 GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
633 GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
634 GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA);
636 g_error("Failed to create glconfig");
637 if (!gtk_widget_set_gl_capability(GTK_WIDGET(self),
638 glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE))
639 g_error("GL lacks required capabilities");
640 g_object_unref(glconfig);
642 gtk_widget_set_size_request(GTK_WIDGET(self), 600, 550);
643 gtk_widget_set_events(GTK_WIDGET(self),
644 GDK_BUTTON_PRESS_MASK |
645 GDK_ENTER_NOTIFY_MASK |
647 g_object_set(self, "can-focus", TRUE, NULL);
649 self->objects = g_tree_new(_objects_cmp);
650 self->sphere = roam_sphere_new(self);
651 self->sphere_lock = g_mutex_new();
654 self->sm_source[0] = g_timeout_add_full(G_PRIORITY_HIGH_IDLE+30, 33, (GSourceFunc)on_idle, self, NULL);
655 self->sm_source[1] = g_timeout_add_full(G_PRIORITY_HIGH_IDLE+10, 500, (GSourceFunc)on_idle, self, NULL);
658 g_signal_connect(self, "realize", G_CALLBACK(on_realize), NULL);
659 g_signal_connect(self, "configure-event", G_CALLBACK(on_configure), NULL);
660 g_signal_connect(self, "expose-event", G_CALLBACK(on_expose), NULL);
662 g_signal_connect(self, "key-press-event", G_CALLBACK(on_key_press), NULL);
664 g_signal_connect(self, "location-changed", G_CALLBACK(on_view_changed), NULL);
665 g_signal_connect(self, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
667 static void gis_opengl_dispose(GObject *_self)
669 g_debug("GisOpenGL: dispose");
670 GisOpenGL *self = GIS_OPENGL(_self);
671 if (self->sm_source[0]) {
672 g_source_remove(self->sm_source[0]);
673 self->sm_source[0] = 0;
675 if (self->sm_source[1]) {
676 g_source_remove(self->sm_source[1]);
677 self->sm_source[1] = 0;
679 /* TODO: Cleanup/free objects tree */
680 G_OBJECT_CLASS(gis_opengl_parent_class)->dispose(_self);
682 static void gis_opengl_finalize(GObject *_self)
684 g_debug("GisViewer: finalize");
685 GisOpenGL *self = GIS_OPENGL(_self);
686 roam_sphere_free(self->sphere);
687 g_mutex_free(self->sphere_lock);
688 G_OBJECT_CLASS(gis_opengl_parent_class)->finalize(_self);
690 static void gis_opengl_class_init(GisOpenGLClass *klass)
692 g_debug("GisOpenGL: class_init");
693 GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
694 gobject_class->dispose = gis_opengl_dispose;
696 GisViewerClass *viewer_class = GIS_VIEWER_CLASS(klass);
697 viewer_class->center_position = gis_opengl_center_position;
698 viewer_class->project = gis_opengl_project;
699 viewer_class->clear_height_func = gis_opengl_clear_height_func;
700 viewer_class->set_height_func = gis_opengl_set_height_func;
701 viewer_class->render_tile = gis_opengl_render_tile;
702 viewer_class->render_tiles = gis_opengl_render_tiles;
703 viewer_class->begin = gis_opengl_begin;
704 viewer_class->end = gis_opengl_end;
705 viewer_class->add = gis_opengl_add;
706 viewer_class->remove = gis_opengl_remove;