double width = GTK_WIDGET(opengl)->allocation.width;
double height = GTK_WIDGET(opengl)->allocation.height;
- double ang = atan(height/FOV_DIST);
+ double ang = atan((height/2)/FOV_DIST)*2;
double atmos = 100000;
double near = MAX(elev*0.75 - atmos, 50); // View 100km of atmosphere
double far = elev + 2*EARTH_R + atmos; // on both sides of the earth
grits_viewer_get_location(GRITS_VIEWER(opengl), &lat, &lon, &elev);
glViewport(0, 0, width, height);
- gluPerspective(rad2deg(ang)*2, width/height, near, far);
+ gluPerspective(rad2deg(ang), width/height, near, far);
/* Setup camera and lighting */
glMatrixMode(GL_MODELVIEW);
g_mutex_unlock(opengl->sphere_lock);
}
+typedef gboolean (*GritsLevelFunc)(GritsObject *obj, gpointer user_data, gint level, gboolean sorted);
+
static gboolean _foreach_object_cb(gpointer key, gpointer value, gpointer pointers)
{
struct RenderLevel *level = value;
- GFunc user_func = ((gpointer*)pointers)[0];
- gpointer user_data = ((gpointer*)pointers)[1];
+ GritsLevelFunc user_func = ((gpointer*)pointers)[0];
+ gpointer user_data = ((gpointer*)pointers)[1];
for (GList *cur = level->unsorted.next; cur; cur = cur->next)
- user_func(cur->data, user_data);
+ if (user_func(cur->data, user_data, (gint)key, FALSE))
+ return TRUE;
for (GList *cur = level->sorted.next; cur; cur = cur->next)
- user_func(cur->data, user_data);
+ if (user_func(cur->data, user_data, (gint)key, TRUE))
+ return TRUE;
return FALSE;
}
-static void _foreach_object(GritsOpenGL *opengl, GFunc func, gpointer user_data)
+static void _foreach_object(GritsOpenGL *opengl, GritsLevelFunc func, gpointer user_data)
{
gpointer pointers[2] = {func, user_data};
g_tree_foreach(opengl->objects, _foreach_object_cb, pointers);
}
-static void _add_object(GritsObject *object, GPtrArray *array)
+static gboolean _add_object_world(GritsObject *object, GPtrArray *array, gint level, gboolean sorted)
{
- g_ptr_array_add(array, object);
+ if (level < GRITS_LEVEL_HUD)
+ g_ptr_array_add(array, object);
+ return FALSE;
}
-static GPtrArray *_objects_to_array(GritsOpenGL *opengl)
+static gboolean _add_object_ortho(GritsObject *object, GPtrArray *array, gint level, gboolean sorted)
+{
+ if (level >= GRITS_LEVEL_HUD)
+ g_ptr_array_add(array, object);
+ return FALSE;
+}
+
+static GPtrArray *_objects_to_array(GritsOpenGL *opengl, gboolean ortho)
{
GPtrArray *array = g_ptr_array_new();
- _foreach_object(opengl, (GFunc)_add_object, array);
+ GritsLevelFunc func = (GritsLevelFunc)(ortho ? _add_object_ortho : _add_object_world);
+ _foreach_object(opengl, func, array);
return array;
}
return FALSE;
}
+static gint run_picking(GritsOpenGL *opengl, GdkEvent *event,
+ GPtrArray *objects, GritsObject **top)
+{
+ /* Setup picking buffers */
+ guint buffer[100][4] = {};
+ glSelectBuffer(G_N_ELEMENTS(buffer), (guint*)buffer);
+ if (!opengl->pickmode)
+ glRenderMode(GL_SELECT);
+ glInitNames();
+
+ /* Render/pick objects */
+ for (guint i = 0; i < objects->len; i++) {
+ glPushName(i);
+ GritsObject *object = objects->pdata[i];
+ object->state.picked = FALSE;
+ grits_object_pick(object, opengl);
+ glPopName();
+ }
+
+ int hits = glRenderMode(GL_RENDER);
+
+ /* Process hits */
+ for (int i = 0; i < hits; i++) {
+ //g_debug("\tHit: %d", i);
+ //g_debug("\t\tcount: %d", buffer[i][0]);
+ //g_debug("\t\tz1: %f", (float)buffer[i][1]/0x7fffffff);
+ //g_debug("\t\tz2: %f", (float)buffer[i][2]/0x7fffffff);
+ //g_debug("\t\tname: %p", (gpointer)buffer[i][3]);
+ guint index = buffer[i][3];
+ GritsObject *object = objects->pdata[index];
+ object->state.picked = TRUE;
+ *top = object;
+ }
+
+ /* Notify objects of pointer movements */
+ for (guint i = 0; i < objects->len; i++) {
+ GritsObject *object = objects->pdata[i];
+ grits_object_set_pointer(object, event, object->state.picked);
+ }
+
+ return hits;
+}
+
+static gboolean on_motion_notify(GritsOpenGL *opengl, GdkEventMotion *event, gpointer _)
+{
+ gdouble height = GTK_WIDGET(opengl)->allocation.height;
+ gdouble gl_x = event->x;
+ gdouble gl_y = height - event->y;
+ gdouble delta = opengl->pickmode ? 200 : 2;
+
+ if (opengl->pickmode) {
+ gtk_gl_begin(GTK_WIDGET(opengl));
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ }
+
+ /* Save matricies */
+ gdouble projection[16];
+ gint viewport[4]; // x=0,y=0,w,h
+ glGetDoublev(GL_PROJECTION_MATRIX, projection);
+ glGetIntegerv(GL_VIEWPORT, viewport);
+ glMatrixMode(GL_MODELVIEW); glPushMatrix();
+ glMatrixMode(GL_PROJECTION); glPushMatrix();
+
+ g_mutex_lock(opengl->objects_lock);
+
+ GritsObject *top = NULL;
+ GPtrArray *ortho = _objects_to_array(opengl, TRUE);
+ GPtrArray *world = _objects_to_array(opengl, FALSE);
+
+ /* Run perspective picking */
+ glMatrixMode(GL_PROJECTION); glLoadIdentity();
+ gluPickMatrix(gl_x, gl_y, delta, delta, viewport);
+ glMultMatrixd(projection);
+ gint world_hits = run_picking(opengl, (GdkEvent*)event, world, &top);
+
+ /* Run ortho picking */
+ glMatrixMode(GL_PROJECTION); glLoadIdentity();
+ gluPickMatrix(gl_x, gl_y, delta, delta, viewport);
+ glMatrixMode(GL_MODELVIEW); glLoadIdentity();
+ glOrtho(0, viewport[2], viewport[3], 0, 1000, -1000);
+ gint ortho_hits = run_picking(opengl, (GdkEvent*)event, ortho, &top);
+
+ /* Update cursor */
+ static GdkCursor *cursor = NULL;
+ static GdkWindow *window = NULL;
+ if (!window || !cursor) {
+ cursor = gdk_cursor_new(GDK_FLEUR);
+ window = gtk_widget_get_window(GTK_WIDGET(opengl));
+ }
+ GdkCursor *topcursor = top && top->cursor ? top->cursor : cursor;
+ gdk_window_set_cursor(window, topcursor);
+
+ g_debug("GritsOpenGL: on_motion_notify - hits=%d/%d,%d/%d ev=%.0lf,%.0lf",
+ world_hits, world->len, ortho_hits, ortho->len, gl_x, gl_y);
+
+ g_ptr_array_free(world, TRUE);
+ g_ptr_array_free(ortho, TRUE);
+
+ g_mutex_unlock(opengl->objects_lock);
+
+
+ /* Test unproject */
+ //gdouble lat, lon, elev;
+ //grits_viewer_unproject(GRITS_VIEWER(opengl),
+ // gl_x, gl_y, -1, &lat, &lon, &elev);
+
+ /* Cleanup */
+ glMatrixMode(GL_PROJECTION); glPopMatrix();
+ glMatrixMode(GL_MODELVIEW); glPopMatrix();
+
+ if (opengl->pickmode)
+ gtk_gl_end(GTK_WIDGET(opengl));
+
+ return FALSE;
+}
+
static gboolean _draw_level(gpointer key, gpointer value, gpointer user_data)
{
GritsOpenGL *opengl = user_data;
//glDepthMask(FALSE);
}
+ /* Start ortho */
+ if (lnum >= GRITS_LEVEL_HUD) {
+ glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity();
+ glMatrixMode(GL_MODELVIEW); glPushMatrix(); glLoadIdentity();
+ gint win_width = GTK_WIDGET(opengl)->allocation.width;
+ gint win_height = GTK_WIDGET(opengl)->allocation.height;
+ glOrtho(0, win_width, win_height, 0, 1000, -1000);
+ }
+
/* Draw unsorted objects without depth testing,
* these are polygons, etc, rather than physical objects */
glDisable(GL_DEPTH_TEST);
for (cur = level->sorted.next; cur; cur = cur->next, nsorted++)
grits_object_draw(GRITS_OBJECT(cur->data), opengl);
+ /* End ortho */
+ if (lnum >= GRITS_LEVEL_HUD) {
+ glMatrixMode(GL_PROJECTION); glPopMatrix();
+ glMatrixMode(GL_MODELVIEW); glPopMatrix();
+ }
+
/* TODO: Prune empty levels */
g_debug("GritsOpenGL: _draw_level - drew %d,%d objects",
{
g_debug("GritsOpenGL: on_expose - begin");
+ if (opengl->pickmode)
+ return on_motion_notify(opengl, (GdkEventMotion*)event, NULL);
+
gtk_gl_begin(GTK_WIDGET(opengl));
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
return FALSE;
}
-static gboolean on_motion_notify(GritsOpenGL *opengl, GdkEventMotion *event, gpointer _)
-{
- gdouble height = GTK_WIDGET(opengl)->allocation.height;
- gdouble gl_x = event->x;
- gdouble gl_y = height - event->y;
-
- /* Configure view */
- gint viewport[4];
- gdouble projection[16];
- glGetIntegerv(GL_VIEWPORT, viewport);
- glGetDoublev(GL_PROJECTION_MATRIX, projection);
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- gluPickMatrix(gl_x, gl_y, 2, 2, viewport);
- glMultMatrixd(projection);
-
- /* Prepare for picking */
- guint buffer[100][4] = {};
- glSelectBuffer(G_N_ELEMENTS(buffer), (guint*)buffer);
- glRenderMode(GL_SELECT);
- glInitNames();
-
- /* Run picking */
- g_mutex_lock(opengl->objects_lock);
- GPtrArray *objects = _objects_to_array(opengl);
- for (guint i = 0; i < objects->len; i++) {
- glPushName(i);
- GritsObject *object = objects->pdata[i];
- object->state.picked = FALSE;
- grits_object_pick(object, opengl);
- glPopName();
- }
- int hits = glRenderMode(GL_RENDER);
- g_debug("GritsOpenGL: on_motion_notify - hits=%d ev=%.0lf,%.0lf",
- hits, gl_x, gl_y);
- for (int i = 0; i < hits; i++) {
- //g_debug("\tHit: %d", i);
- //g_debug("\t\tcount: %d", buffer[i][0]);
- //g_debug("\t\tz1: %f", (float)buffer[i][1]/0x7fffffff);
- //g_debug("\t\tz2: %f", (float)buffer[i][2]/0x7fffffff);
- //g_debug("\t\tname: %p", (gpointer)buffer[i][3]);
- guint index = buffer[i][3];
- GritsObject *object = objects->pdata[index];
- object->state.picked = TRUE;
- }
- for (guint i = 0; i < objects->len; i++) {
- GritsObject *object = objects->pdata[i];
- grits_object_set_pointer(object, object->state.picked);
- }
- g_ptr_array_free(objects, TRUE);
- g_mutex_unlock(opengl->objects_lock);
-
- /* Cleanup */
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
-
- return FALSE;
-}
-
static gboolean on_key_press(GritsOpenGL *opengl, GdkEventKey *event, gpointer _)
{
g_debug("GritsOpenGL: on_key_press - key=%x, state=%x, plus=%x",
opengl->wireframe = !opengl->wireframe;
gtk_widget_queue_draw(GTK_WIDGET(opengl));
}
+ if (kv == GDK_p) {
+ opengl->pickmode = !opengl->pickmode;
+ gtk_widget_queue_draw(GTK_WIDGET(opengl));
+ }
#ifdef ROAM_DEBUG
else if (kv == GDK_n) roam_sphere_split_one(opengl->sphere);
else if (kv == GDK_p) roam_sphere_merge_one(opengl->sphere);
static gboolean on_chained_event(GritsOpenGL *opengl, GdkEvent *event, gpointer _)
{
- _foreach_object(opengl, (GFunc)grits_object_event, event);
+ _foreach_object(opengl, (GritsLevelFunc)grits_object_event, event);
return FALSE;
}
px, py, pz);
}
+static void grits_opengl_unproject(GritsViewer *_opengl,
+ gdouble px, gdouble py, gdouble pz,
+ gdouble *lat, gdouble *lon, gdouble *elev)
+{
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
+ if (!opengl->sphere->view)
+ return;
+ gdouble x, y, z;
+ if (pz < 0) {
+ gfloat tmp = 0;
+ glReadPixels(px, py, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &tmp);
+ pz = tmp;
+ }
+ gluUnProject(px, py, pz,
+ opengl->sphere->view->model,
+ opengl->sphere->view->proj,
+ opengl->sphere->view->view,
+ &x, &y, &z);
+ xyz2lle(x, y, z, lat, lon, elev);
+ //g_message("GritsOpenGL: unproject - "
+ // "%4.0lf,%4.0lf,(%5.3lf) -> "
+ // "%8.0lf,%8.0lf,%8.0lf -> "
+ // "%6.2lf,%7.2lf,%4.0lf",
+ // px, py, pz, x, y, z, *lat, *lon, *elev);
+}
+
static void grits_opengl_set_height_func(GritsViewer *_opengl, GritsBounds *bounds,
RoamHeightFunc height_func, gpointer user_data, gboolean update)
{
GritsViewerClass *viewer_class = GRITS_VIEWER_CLASS(klass);
viewer_class->center_position = grits_opengl_center_position;
viewer_class->project = grits_opengl_project;
+ viewer_class->unproject = grits_opengl_unproject;
viewer_class->clear_height_func = grits_opengl_clear_height_func;
viewer_class->set_height_func = grits_opengl_set_height_func;
viewer_class->add = grits_opengl_add;
projects / grits / blobdiff