*/
/**
- * SECTION:gis-opengl
+ * SECTION:grits-opengl
* @short_description: OpenGL based virtual globe
*
- * #GisOpenGL is the core rendering engine used by grits. Theoretically other
- * renderers could be writte, but they have not been. GisOpenGL uses the ROAM
- * algorithm for updating surface mesh the planet. The only thing GisOpenGL can
- * actually render on it's own is a wireframe of a sphere.
+ * #GritsOpenGL is the core rendering engine used by grits. Theoretically other
+ * renderers could be writte, but they have not been. GritsOpenGL uses the ROAM
+ * algorithm for updating surface mesh the planet. The only thing GritsOpenGL
+ * can actually render on it's own is a wireframe of a sphere.
*
- * GisOpenGL relies on #GtkGlExt and requires (at least) OpenGL 2.0.
+ * GritsOpenGL relies on #GtkGlExt and requires (at least) OpenGL 2.0.
*/
#include <config.h>
/***********
* Helpers *
***********/
-static void _set_visuals(GisOpenGL *opengl)
+static void _set_visuals(GritsOpenGL *opengl)
{
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
/* Camera 1 */
double lat, lon, elev, rx, ry, rz;
- gis_viewer_get_location(GIS_VIEWER(opengl), &lat, &lon, &elev);
- gis_viewer_get_rotation(GIS_VIEWER(opengl), &rx, &ry, &rz);
+ grits_viewer_get_location(GRITS_VIEWER(opengl), &lat, &lon, &elev);
+ grits_viewer_get_rotation(GRITS_VIEWER(opengl), &rx, &ry, &rz);
glRotatef(rx, 1, 0, 0);
glRotatef(rz, 0, 0, 1);
/********************
* Object handleing *
********************/
-static void _draw_tile(GisOpenGL *opengl, GisTile *tile, GList *triangles)
+static void _draw_tile(GritsOpenGL *opengl, GritsTile *tile, GList *triangles)
{
if (!tile || !tile->data)
return;
if (!triangles)
- g_warning("GisOpenGL: _draw_tiles - No triangles to draw: edges=%f,%f,%f,%f",
+ g_warning("GritsOpenGL: _draw_tiles - No triangles to draw: edges=%f,%f,%f,%f",
tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
//g_message("drawing %4d triangles for tile edges=%7.2f,%7.2f,%7.2f,%7.2f",
// g_list_length(triangles), tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
}
}
-static void _draw_tiles(GisOpenGL *opengl, GisTile *tile)
+static void _draw_tiles(GritsOpenGL *opengl, GritsTile *tile)
{
/* Only draw children if possible */
gboolean has_children = FALSE;
- GisTile *child;
- gis_tile_foreach(tile, child)
+ GritsTile *child;
+ grits_tile_foreach(tile, child)
if (child && child->data)
has_children = TRUE;
const gdouble lat_step = lat_dist / rows;
const gdouble lon_step = lon_dist / cols;
int row, col;
- gis_tile_foreach_index(tile, row, col) {
- GisTile *child = tile->children[row][col];
+ grits_tile_foreach_index(tile, row, col) {
+ GritsTile *child = tile->children[row][col];
if (child && child->data) {
_draw_tiles(opengl, child);
} else {
g_list_free(triangles);
}
-static void _draw_marker(GisOpenGL *opengl, GisMarker *marker)
+static void _draw_marker(GritsOpenGL *opengl, GritsMarker *marker)
{
- GisPoint *point = gis_object_center(marker);
+ GritsPoint *point = grits_object_center(marker);
gdouble px, py, pz;
- gis_viewer_project(GIS_VIEWER(opengl),
+ grits_viewer_project(GRITS_VIEWER(opengl),
point->lat, point->lon, point->elev,
&px, &py, &pz);
if (pz > 1)
return;
- //g_debug("GisOpenGL: draw_marker - %s pz=%f ", marker->label, pz);
+ //g_debug("GritsOpenGL: draw_marker - %s pz=%f ", marker->label, pz);
cairo_surface_t *surface = cairo_get_target(marker->cairo);
gdouble width = cairo_image_surface_get_width(surface);
glEnd();
}
-static void _draw_callback(GisOpenGL *opengl, GisCallback *callback)
+static void _draw_callback(GritsOpenGL *opengl, GritsCallback *callback)
{
callback->callback(callback, callback->user_data);
}
-static void _draw_object(GisOpenGL *opengl, GisObject *object)
+static void _draw_object(GritsOpenGL *opengl, GritsObject *object)
{
- //g_debug("GisOpenGL: draw_object");
+ //g_debug("GritsOpenGL: draw_object");
/* Skip hidden objects */
if (object->hidden)
return;
if (object->lod > 0) {
/* LOD test */
gdouble eye[3], obj[3];
- gis_viewer_get_location(GIS_VIEWER(opengl), &eye[0], &eye[1], &eye[2]);
+ grits_viewer_get_location(GRITS_VIEWER(opengl), &eye[0], &eye[1], &eye[2]);
gdouble elev = eye[2];
lle2xyz(eye[0], eye[1], eye[2], &eye[0], &eye[1], &eye[2]);
lle2xyz(object->center.lat, object->center.lon, object->center.elev,
glMatrixMode(GL_PROJECTION); glPushMatrix();
glMatrixMode(GL_MODELVIEW); glPushMatrix();
glPushAttrib(GL_ALL_ATTRIB_BITS);
- if (GIS_IS_MARKER(object)) {
- _draw_marker(opengl, GIS_MARKER(object));
- } else if (GIS_IS_CALLBACK(object)) {
- _draw_callback(opengl, GIS_CALLBACK(object));
- } else if (GIS_IS_TILE(object)) {
+ if (GRITS_IS_MARKER(object)) {
+ _draw_marker(opengl, GRITS_MARKER(object));
+ } else if (GRITS_IS_CALLBACK(object)) {
+ _draw_callback(opengl, GRITS_CALLBACK(object));
+ } else if (GRITS_IS_TILE(object)) {
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
g_mutex_lock(opengl->sphere_lock);
- _draw_tiles(opengl, GIS_TILE(object));
+ _draw_tiles(opengl, GRITS_TILE(object));
g_mutex_unlock(opengl->sphere_lock);
}
glPopAttrib();
glMatrixMode(GL_MODELVIEW); glPopMatrix();
}
-static void _load_object(GisOpenGL *opengl, GisObject *object)
+static void _load_object(GritsOpenGL *opengl, GritsObject *object)
{
- //g_debug("GisOpenGL: load_object");
- if (GIS_IS_MARKER(object)) {
- GisMarker *marker = GIS_MARKER(object);
+ //g_debug("GritsOpenGL: load_object");
+ if (GRITS_IS_MARKER(object)) {
+ GritsMarker *marker = GRITS_MARKER(object);
cairo_surface_t *surface = cairo_get_target(marker->cairo);
gdouble width = cairo_image_surface_get_width(surface);
gdouble height = cairo_image_surface_get_height(surface);
}
}
-static void _unload_object(GisOpenGL *opengl, GisObject *object)
+static void _unload_object(GritsOpenGL *opengl, GritsObject *object)
{
- //g_debug("GisOpenGL: unload_object");
- if (GIS_IS_MARKER(object)) {
- GisMarker *marker = GIS_MARKER(object);
+ //g_debug("GritsOpenGL: unload_object");
+ if (GRITS_IS_MARKER(object)) {
+ GritsMarker *marker = GRITS_MARKER(object);
glDeleteTextures(1, &marker->tex);
}
}
GList sorted;
};
-static gboolean on_configure(GisOpenGL *opengl, GdkEventConfigure *event, gpointer _)
+static gboolean on_configure(GritsOpenGL *opengl, GdkEventConfigure *event, gpointer _)
{
- g_debug("GisOpenGL: on_configure");
+ g_debug("GritsOpenGL: on_configure");
/* wait for "realize" */
if (!gdk_gl_context_get_current())
return FALSE;
}
-static void on_realize(GisOpenGL *opengl, gpointer _)
+static void on_realize(GritsOpenGL *opengl, gpointer _)
{
- g_debug("GisOpenGL: on_realize");
+ g_debug("GritsOpenGL: on_realize");
GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(opengl));
GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(opengl));
static gboolean _draw_level(gpointer key, gpointer value, gpointer user_data)
{
- g_debug("GisOpenGL: _draw_level - level=%-4d", (int)key);
- GisOpenGL *opengl = user_data;
+ g_debug("GritsOpenGL: _draw_level - level=%-4d", (int)key);
+ GritsOpenGL *opengl = user_data;
struct RenderLevel *level = value;
int nsorted = 0, nunsorted = 0;
GList *cur = NULL;
glDepthMask(TRUE);
glClear(GL_DEPTH_BUFFER_BIT);
for (cur = level->unsorted.next; cur; cur = cur->next, nunsorted++)
- _draw_object(opengl, GIS_OBJECT(cur->data));
+ _draw_object(opengl, GRITS_OBJECT(cur->data));
/* Freeze depth buffer and draw transparent objects sorted */
/* TODO: sorting */
//glDepthMask(FALSE);
glAlphaFunc(GL_GREATER, 0.1);
for (cur = level->sorted.next; cur; cur = cur->next, nsorted++)
- _draw_object(opengl, GIS_OBJECT(cur->data));
+ _draw_object(opengl, GRITS_OBJECT(cur->data));
/* TODO: Prune empty levels */
- g_debug("GisOpenGL: _draw_level - drew %d,%d objects",
+ g_debug("GritsOpenGL: _draw_level - drew %d,%d objects",
nunsorted, nsorted);
return FALSE;
}
-static gboolean on_expose(GisOpenGL *opengl, GdkEventExpose *event, gpointer _)
+static gboolean on_expose(GritsOpenGL *opengl, GdkEventExpose *event, gpointer _)
{
- g_debug("GisOpenGL: on_expose - begin");
+ g_debug("GritsOpenGL: on_expose - begin");
glClear(GL_COLOR_BUFFER_BIT);
GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(opengl));
gdk_gl_drawable_swap_buffers(gldrawable);
- g_debug("GisOpenGL: on_expose - end\n");
+ g_debug("GritsOpenGL: on_expose - end\n");
return FALSE;
}
-static gboolean on_key_press(GisOpenGL *opengl, GdkEventKey *event, gpointer _)
+static gboolean on_key_press(GritsOpenGL *opengl, GdkEventKey *event, gpointer _)
{
- g_debug("GisOpenGL: on_key_press - key=%x, state=%x, plus=%x",
+ g_debug("GritsOpenGL: on_key_press - key=%x, state=%x, plus=%x",
event->keyval, event->state, GDK_plus);
guint kv = event->keyval;
static gboolean _update_errors_cb(gpointer _opengl)
{
- GisOpenGL *opengl = _opengl;
+ GritsOpenGL *opengl = _opengl;
g_mutex_lock(opengl->sphere_lock);
roam_sphere_update_errors(opengl->sphere);
g_mutex_unlock(opengl->sphere_lock);
opengl->ue_source = 0;
return FALSE;
}
-static void on_view_changed(GisOpenGL *opengl,
+static void on_view_changed(GritsOpenGL *opengl,
gdouble _1, gdouble _2, gdouble _3)
{
- g_debug("GisOpenGL: on_view_changed");
+ g_debug("GritsOpenGL: on_view_changed");
_set_visuals(opengl);
#ifndef ROAM_DEBUG
if (!opengl->ue_source)
#endif
}
-static gboolean on_idle(GisOpenGL *opengl)
+static gboolean on_idle(GritsOpenGL *opengl)
{
- //g_debug("GisOpenGL: on_idle");
+ //g_debug("GritsOpenGL: on_idle");
g_mutex_lock(opengl->sphere_lock);
if (roam_sphere_split_merge(opengl->sphere))
gtk_widget_queue_draw(GTK_WIDGET(opengl));
/*********************
- * GisViewer methods *
+ * GritsViewer methods *
*********************/
/**
- * gis_opengl_new:
+ * grits_opengl_new:
* @plugins: the plugins store to use
* @prefs: the preferences object to use
*
* Create a new OpenGL renderer.
*
- * Returns: the new #GisOpenGL
+ * Returns: the new #GritsOpenGL
*/
-GisViewer *gis_opengl_new(GisPlugins *plugins, GisPrefs *prefs)
+GritsViewer *grits_opengl_new(GritsPlugins *plugins, GritsPrefs *prefs)
{
- g_debug("GisOpenGL: new");
- GisViewer *opengl = g_object_new(GIS_TYPE_OPENGL, NULL);
- gis_viewer_setup(opengl, plugins, prefs);
+ g_debug("GritsOpenGL: new");
+ GritsViewer *opengl = g_object_new(GRITS_TYPE_OPENGL, NULL);
+ grits_viewer_setup(opengl, plugins, prefs);
return opengl;
}
-static void gis_opengl_center_position(GisViewer *_opengl, gdouble lat, gdouble lon, gdouble elev)
+static void grits_opengl_center_position(GritsViewer *_opengl, gdouble lat, gdouble lon, gdouble elev)
{
glRotatef(lon, 0, 1, 0);
glRotatef(-lat, 1, 0, 0);
glTranslatef(0, 0, elev2rad(elev));
}
-static void gis_opengl_project(GisViewer *_opengl,
+static void grits_opengl_project(GritsViewer *_opengl,
gdouble lat, gdouble lon, gdouble elev,
gdouble *px, gdouble *py, gdouble *pz)
{
- GisOpenGL *opengl = GIS_OPENGL(_opengl);
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
gdouble x, y, z;
lle2xyz(lat, lon, elev, &x, &y, &z);
gluProject(x, y, z,
px, py, pz);
}
-static void gis_opengl_set_height_func(GisViewer *_opengl, GisTile *tile,
+static void grits_opengl_set_height_func(GritsViewer *_opengl, GritsTile *tile,
RoamHeightFunc height_func, gpointer user_data, gboolean update)
{
- GisOpenGL *opengl = GIS_OPENGL(_opengl);
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
if (!tile)
return;
/* TODO: get points? */
g_mutex_unlock(opengl->sphere_lock);
}
-static void _gis_opengl_clear_height_func_rec(RoamTriangle *root)
+static void _grits_opengl_clear_height_func_rec(RoamTriangle *root)
{
if (!root)
return;
points[i]->height_data = NULL;
roam_point_update_height(points[i]);
}
- _gis_opengl_clear_height_func_rec(root->kids[0]);
- _gis_opengl_clear_height_func_rec(root->kids[1]);
+ _grits_opengl_clear_height_func_rec(root->kids[0]);
+ _grits_opengl_clear_height_func_rec(root->kids[1]);
}
-static void gis_opengl_clear_height_func(GisViewer *_opengl)
+static void grits_opengl_clear_height_func(GritsViewer *_opengl)
{
- GisOpenGL *opengl = GIS_OPENGL(_opengl);
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
for (int i = 0; i < G_N_ELEMENTS(opengl->sphere->roots); i++)
- _gis_opengl_clear_height_func_rec(opengl->sphere->roots[i]);
+ _grits_opengl_clear_height_func_rec(opengl->sphere->roots[i]);
}
-static gpointer gis_opengl_add(GisViewer *_opengl, GisObject *object,
+static gpointer grits_opengl_add(GritsViewer *_opengl, GritsObject *object,
gint key, gboolean sort)
{
- g_assert(GIS_IS_OPENGL(_opengl));
- GisOpenGL *opengl = GIS_OPENGL(_opengl);
+ g_assert(GRITS_IS_OPENGL(_opengl));
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
g_mutex_lock(opengl->objects_lock);
_load_object(opengl, object);
struct RenderLevel *level = g_tree_lookup(opengl->objects, (gpointer)key);
return link;
}
-static GisObject *gis_opengl_remove(GisViewer *_opengl, gpointer _link)
+static GritsObject *grits_opengl_remove(GritsViewer *_opengl, gpointer _link)
{
- g_assert(GIS_IS_OPENGL(_opengl));
- GisOpenGL *opengl = GIS_OPENGL(_opengl);
+ g_assert(GRITS_IS_OPENGL(_opengl));
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
g_mutex_lock(opengl->objects_lock);
GList *link = _link;
- GisObject *object = link->data;
+ GritsObject *object = link->data;
_unload_object(opengl, object);
/* Just unlink and free it, link->prev is assured */
link->prev->next = link->next;
g_free(level);
}
-G_DEFINE_TYPE(GisOpenGL, gis_opengl, GIS_TYPE_VIEWER);
-static void gis_opengl_init(GisOpenGL *opengl)
+G_DEFINE_TYPE(GritsOpenGL, grits_opengl, GRITS_TYPE_VIEWER);
+static void grits_opengl_init(GritsOpenGL *opengl)
{
- g_debug("GisOpenGL: init");
+ g_debug("GritsOpenGL: init");
/* OpenGL setup */
GdkGLConfig *glconfig = gdk_gl_config_new_by_mode(
GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH |
g_signal_connect(opengl, "location-changed", G_CALLBACK(on_view_changed), NULL);
g_signal_connect(opengl, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
}
-static void gis_opengl_dispose(GObject *_opengl)
+static void grits_opengl_dispose(GObject *_opengl)
{
- g_debug("GisOpenGL: dispose");
- GisOpenGL *opengl = GIS_OPENGL(_opengl);
+ g_debug("GritsOpenGL: dispose");
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
if (opengl->sm_source[0]) {
g_source_remove(opengl->sm_source[0]);
opengl->sm_source[0] = 0;
g_source_remove(opengl->ue_source);
opengl->ue_source = 0;
}
- G_OBJECT_CLASS(gis_opengl_parent_class)->dispose(_opengl);
+ G_OBJECT_CLASS(grits_opengl_parent_class)->dispose(_opengl);
}
-static void gis_opengl_finalize(GObject *_opengl)
+static void grits_opengl_finalize(GObject *_opengl)
{
- g_debug("GisOpenGL: finalize");
- GisOpenGL *opengl = GIS_OPENGL(_opengl);
+ g_debug("GritsOpenGL: finalize");
+ GritsOpenGL *opengl = GRITS_OPENGL(_opengl);
roam_sphere_free(opengl->sphere);
g_tree_destroy(opengl->objects);
g_mutex_free(opengl->objects_lock);
g_mutex_free(opengl->sphere_lock);
- G_OBJECT_CLASS(gis_opengl_parent_class)->finalize(_opengl);
+ G_OBJECT_CLASS(grits_opengl_parent_class)->finalize(_opengl);
}
-static void gis_opengl_class_init(GisOpenGLClass *klass)
+static void grits_opengl_class_init(GritsOpenGLClass *klass)
{
- g_debug("GisOpenGL: class_init");
+ g_debug("GritsOpenGL: class_init");
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
- gobject_class->finalize = gis_opengl_finalize;
- gobject_class->dispose = gis_opengl_dispose;
-
- GisViewerClass *viewer_class = GIS_VIEWER_CLASS(klass);
- viewer_class->center_position = gis_opengl_center_position;
- viewer_class->project = gis_opengl_project;
- viewer_class->clear_height_func = gis_opengl_clear_height_func;
- viewer_class->set_height_func = gis_opengl_set_height_func;
- viewer_class->add = gis_opengl_add;
- viewer_class->remove = gis_opengl_remove;
+ gobject_class->finalize = grits_opengl_finalize;
+ gobject_class->dispose = grits_opengl_dispose;
+
+ GritsViewerClass *viewer_class = GRITS_VIEWER_CLASS(klass);
+ viewer_class->center_position = grits_opengl_center_position;
+ viewer_class->project = grits_opengl_project;
+ 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;
+ viewer_class->remove = grits_opengl_remove;
}
projects / grits / blobdiff