X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fgis-opengl.c;h=377a83ec379d5fd79c62022f48dfb376f74ca48b;hp=46eae608657ef4a8053eeaae9a2a544479a4a89f;hb=f3b5111c3bfb35c470d9db6ff9ea7f3ef3ceb521;hpb=5e8bf923bce829075eb0754eecfd7e6b9b768a61 diff --git a/src/gis-opengl.c b/src/gis-opengl.c index 46eae60..377a83e 100644 --- a/src/gis-opengl.c +++ b/src/gis-opengl.c @@ -1,270 +1,510 @@ /* - * Copyright (C) 2009 Andy Spencer - * + * Copyright (C) 2009-2010 Andy Spencer + * * 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 * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * + * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ +/** + * SECTION:gis-opengl + * @short_description: OpenGL based virtual globe + * + * #GisOpenGL is the core rendering engine used by libgis. 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. + * + * GisOpenGL relies on #GtkGlExt and requires (at least) OpenGL 2.0. + */ + #include #include +#include #include #include #include #include #include -#include "misc.h" -#include "aweather-gui.h" -#include "gis-world.h" -#include "gis-view.h" #include "gis-opengl.h" +#include "gis-util.h" +#include "roam.h" -/**************** - * GObject code * - ****************/ -G_DEFINE_TYPE(GisOpenGL, gis_opengl, G_TYPE_OBJECT); -static void gis_opengl_init(GisOpenGL *self) -{ - g_debug("GisOpenGL: init"); -} -static GObject *gis_opengl_constructor(GType gtype, guint n_properties, - GObjectConstructParam *properties) -{ - g_debug("gis_opengl: constructor"); - GObjectClass *parent_class = G_OBJECT_CLASS(gis_opengl_parent_class); - return parent_class->constructor(gtype, n_properties, properties); -} -static void gis_opengl_dispose(GObject *gobject) -{ - g_debug("GisOpenGL: dispose"); - GisOpenGL *self = GIS_OPENGL(gobject); - if (self->world) { - g_object_unref(self->world); - self->world = NULL; - } - if (self->view) { - g_object_unref(self->view); - self->view = NULL; - } - if (self->drawing) { - g_object_unref(self->drawing); - self->drawing = NULL; - } - G_OBJECT_CLASS(gis_opengl_parent_class)->dispose(gobject); -} -static void gis_opengl_finalize(GObject *gobject) -{ - g_debug("GisOpenGL: finalize"); - G_OBJECT_CLASS(gis_opengl_parent_class)->finalize(gobject); - gtk_main_quit(); +// #define ROAM_DEBUG -} -static void gis_opengl_class_init(GisOpenGLClass *klass) -{ - g_debug("GisOpenGL: class_init"); - GObjectClass *gobject_class = G_OBJECT_CLASS(klass); - gobject_class->constructor = gis_opengl_constructor; - gobject_class->dispose = gis_opengl_dispose; - gobject_class->finalize = gis_opengl_finalize; -} +/* Tessellation, "finding intersecting triangles" */ +/* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */ +/* http://www.opengl.org/wiki/Alpha_Blending */ -/************* - * Callbacks * - *************/ -gboolean on_button_press(GtkWidget *widget, GdkEventButton *event, GisOpenGL *self) -{ - g_debug("GisOpenGL: on_drawing_button_press - Grabbing focus"); - gtk_widget_grab_focus(GTK_WIDGET(self->drawing)); - return TRUE; -} -gboolean on_key_press(GtkWidget *widget, GdkEventKey *event, GisOpenGL *self) +/*********** + * Helpers * + ***********/ +static void _set_visuals(GisOpenGL *opengl) { - g_debug("GisOpenGL: on_drawing_key_press - key=%x, state=%x, plus=%x", - event->keyval, event->state, GDK_plus); - double x,y,z; - gis_view_get_location(self->view, &x, &y, &z); - guint kv = event->keyval; - if (kv == GDK_Left || kv == GDK_h) gis_view_pan(self->view, -z/10, 0, 0); - else if (kv == GDK_Down || kv == GDK_j) gis_view_pan(self->view, 0, -z/10, 0); - else if (kv == GDK_Up || kv == GDK_k) gis_view_pan(self->view, 0, z/10, 0); - else if (kv == GDK_Right || kv == GDK_l) gis_view_pan(self->view, z/10, 0, 0); - else if (kv == GDK_minus || kv == GDK_o) gis_view_zoom(self->view, 10./9); - else if (kv == GDK_plus || kv == GDK_i) gis_view_zoom(self->view, 9./10); - else if (kv == GDK_H ) gis_view_rotate(self->view, 0, -10, 0); - else if (kv == GDK_J ) gis_view_rotate(self->view, 10, 0, 0); - else if (kv == GDK_K ) gis_view_rotate(self->view, -10, 0, 0); - else if (kv == GDK_L ) gis_view_rotate(self->view, 0, 10, 0); - return TRUE; -} + 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); + glRotatef(rx, 1, 0, 0); + glRotatef(rz, 0, 0, 1); -gboolean on_map(GtkWidget *drawing, GdkEventConfigure *event, GisOpenGL *self) -{ - g_debug("GisOpenGL: on_map"); + /* Lighting */ +#ifdef ROAM_DEBUG + float light_ambient[] = {0.7f, 0.7f, 0.7f, 1.0f}; + float light_diffuse[] = {2.0f, 2.0f, 2.0f, 1.0f}; +#else + float light_ambient[] = {0.2f, 0.2f, 0.2f, 1.0f}; + float light_diffuse[] = {5.0f, 5.0f, 5.0f, 1.0f}; +#endif + float light_position[] = {-13*EARTH_R, 1*EARTH_R, 3*EARTH_R, 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_LIGHT0); + glEnable(GL_LIGHTING); + + float material_ambient[] = {0.2, 0.2, 0.2, 1.0}; + float material_diffuse[] = {0.8, 0.8, 0.8, 1.0}; + float material_specular[] = {0.1, 0.1, 0.1, 1.0}; + float material_emission[] = {0.0, 0.0, 0.0, 1.0}; + glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, material_ambient); + glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, material_diffuse); + glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, material_specular); + glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, material_emission); + glDisable(GL_TEXTURE_2D); + glDisable(GL_COLOR_MATERIAL); + + /* Camera 2 */ + glTranslatef(0, 0, -elev2rad(elev)); + glRotatef(lat, 1, 0, 0); + glRotatef(-lon, 0, 1, 0); + + glDisable(GL_ALPHA_TEST); - /* Misc */ - glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - glClearColor(0.0f, 0.0f, 0.0f, 0.0f); + glEnable(GL_BLEND); - /* Tessellation, "finding intersecting triangles" */ - /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */ - /* http://www.opengl.org/wiki/Alpha_Blending */ - glAlphaFunc(GL_GREATER,0.1); - glEnable(GL_ALPHA_TEST); +#ifndef ROAM_DEBUG + glCullFace(GL_BACK); + glEnable(GL_CULL_FACE); - /* Depth test */ glClearDepth(1.0); glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST); +#endif - gis_opengl_end(self); - return FALSE; + glEnable(GL_LINE_SMOOTH); + + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); + //glShadeModel(GL_FLAT); + + g_mutex_lock(opengl->sphere_lock); + roam_sphere_update_view(opengl->sphere); + g_mutex_unlock(opengl->sphere_lock); } -gboolean on_configure(GtkWidget *drawing, GdkEventConfigure *event, GisOpenGL *self) -{ - g_debug("GisOpenGL: on_confiure"); - gis_opengl_begin(self); - double x, y, z; - gis_view_get_location(self->view, &x, &y, &z); +/************* + * Callbacks * + *************/ +/* The unsorted/sroted GLists are blank head nodes, + * This way us we can remove objects from the level just by fixing up links + * I.e. we don't need to do a lookup to remove an object if we have its GList */ +struct RenderLevel { + GList unsorted; + GList sorted; +}; + +static gboolean on_configure(GisOpenGL *opengl, GdkEventConfigure *event, gpointer _) +{ + g_debug("GisOpenGL: on_configure"); - /* Window is at 500 m from camera */ - double width = GTK_WIDGET(self->drawing)->allocation.width; - double height = GTK_WIDGET(self->drawing)->allocation.height; + double width = GTK_WIDGET(opengl)->allocation.width; + double height = GTK_WIDGET(opengl)->allocation.height; + /* Setup OpenGL Window */ glViewport(0, 0, width, height); - - /* Perspective */ glMatrixMode(GL_PROJECTION); glLoadIdentity(); - double ang = atan((height/2)/500); + double ang = atan(height/FOV_DIST); + gluPerspective(rad2deg(ang)*2, width/height, 1000, 10*EARTH_R); - //gluPerspective(r2d(ang)*2, width/height, -z-20, -z+20); - gluPerspective(r2d(ang)*2, width/height, 1, 500*1000); +#ifndef ROAM_DEBUG + g_mutex_lock(opengl->sphere_lock); + roam_sphere_update_errors(opengl->sphere); + g_mutex_unlock(opengl->sphere_lock); +#endif - gis_opengl_end(self); return FALSE; } -gboolean on_expose(GtkWidget *drawing, GdkEventExpose *event, GisOpenGL *self) +static void on_realize(GisOpenGL *opengl, gpointer _) { - g_debug("GisOpenGL: on_expose - begin"); - gis_opengl_begin(self); + g_debug("GisOpenGL: on_realize"); - double lx, ly, lz; - double rx, ry, rz; - gis_view_get_location(self->view, &lx, &ly, &lz); - gis_view_get_rotation(self->view, &rx, &ry, &rz); + GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(opengl)); + GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(opengl)); + if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext)) + g_assert_not_reached(); - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef(lx, ly, lz); - glRotatef(rx, 1, 0, 0); - glRotatef(ry, 0, 1, 0); - glRotatef(rz, 0, 0, 1); + _set_visuals(opengl); + on_configure(opengl, NULL, NULL); +} - /* Expose plugins */ - /* TODO: Figure out how to handle plugins: - * - Do they belong to AWeatherGui, GisOpenGL, etc? - */ - for (GList *cur = self->plugins; cur; cur = cur->next) { - AWeatherPlugin *plugin = AWEATHER_PLUGIN(cur->data); - aweather_plugin_expose(plugin); +static gboolean _draw_level(gpointer key, gpointer value, gpointer user_data) +{ + g_debug("GisOpenGL: _draw_level - level=%-4d", (int)key); + GisOpenGL *opengl = user_data; + struct RenderLevel *level = value; + int nsorted = 0, nunsorted = 0; + GList *cur = NULL; + + /* Draw opaque objects without sorting */ + glDepthMask(TRUE); + glClear(GL_DEPTH_BUFFER_BIT); + for (cur = level->unsorted.next; cur; cur = cur->next, nunsorted++) + gis_object_draw( GIS_OBJECT(cur->data), opengl); + + /* 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++) + gis_object_draw(GIS_OBJECT(cur->data), opengl); + + /* TODO: Prune empty levels */ + + g_debug("GisOpenGL: _draw_level - drew %d,%d objects", + nunsorted, nsorted); + return FALSE; +} + +static gboolean on_expose(GisOpenGL *opengl, GdkEventExpose *event, gpointer _) +{ + g_debug("GisOpenGL: on_expose - begin"); + + glClear(GL_COLOR_BUFFER_BIT); + + _set_visuals(opengl); +#ifdef ROAM_DEBUG + glColor4f(1.0, 1.0, 1.0, 1.0); + glLineWidth(2); + glDisable(GL_TEXTURE_2D); + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + roam_sphere_draw(opengl->sphere); + (void)_draw_level; + //roam_sphere_draw_normals(opengl->sphere); +#else + g_mutex_lock(opengl->objects_lock); + g_tree_foreach(opengl->objects, _draw_level, opengl); + g_mutex_unlock(opengl->objects_lock); + if (opengl->wireframe) { + glClear(GL_DEPTH_BUFFER_BIT); + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); + roam_sphere_draw(opengl->sphere); } +#endif + + GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(opengl)); + gdk_gl_drawable_swap_buffers(gldrawable); - gis_opengl_end(self); - gis_opengl_flush(self); g_debug("GisOpenGL: on_expose - end\n"); return FALSE; } -void on_state_changed(GisView *view, - gdouble x, gdouble y, gdouble z, GisOpenGL *self) +static gboolean on_key_press(GisOpenGL *opengl, GdkEventKey *event, gpointer _) { - /* Reset clipping area and redraw */ - on_configure(NULL, NULL, self); - gis_opengl_redraw(self); + g_debug("GisOpenGL: on_key_press - key=%x, state=%x, plus=%x", + event->keyval, event->state, GDK_plus); + + guint kv = event->keyval; + /* Testing */ + if (kv == GDK_w) { + opengl->wireframe = !opengl->wireframe; + 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); + else if (kv == GDK_r) roam_sphere_split_merge(opengl->sphere); + else if (kv == GDK_u) roam_sphere_update_errors(opengl->sphere); + gtk_widget_queue_draw(GTK_WIDGET(opengl)); +#endif + return FALSE; } -/*********** - * Methods * - ***********/ -GisOpenGL *gis_opengl_new(GisWorld *world, GisView *view, GtkDrawingArea *drawing) +static gboolean _update_errors_cb(gpointer _opengl) +{ + GisOpenGL *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, + gdouble _1, gdouble _2, gdouble _3) +{ + g_debug("GisOpenGL: on_view_changed"); + _set_visuals(opengl); +#ifndef ROAM_DEBUG + if (!opengl->ue_source) + opengl->ue_source = g_idle_add_full(G_PRIORITY_HIGH_IDLE+30, + _update_errors_cb, opengl, NULL); + //roam_sphere_update_errors(opengl->sphere); +#else + (void)_update_errors_cb; +#endif +} + +static gboolean on_idle(GisOpenGL *opengl) +{ + //g_debug("GisOpenGL: on_idle"); + g_mutex_lock(opengl->sphere_lock); + if (roam_sphere_split_merge(opengl->sphere)) + gtk_widget_queue_draw(GTK_WIDGET(opengl)); + g_mutex_unlock(opengl->sphere_lock); + return TRUE; +} + + +/********************* + * GisViewer methods * + *********************/ +/** + * gis_opengl_new: + * @plugins: the plugins store to use + * @prefs: the preferences object to use + * + * Create a new OpenGL renderer. + * + * Returns: the new #GisOpenGL + */ +GisViewer *gis_opengl_new(GisPlugins *plugins, GisPrefs *prefs) { g_debug("GisOpenGL: new"); - GisOpenGL *self = g_object_new(GIS_TYPE_OPENGL, NULL); - self->world = world; - self->view = view; - self->drawing = drawing; - g_object_ref(world); - g_object_ref(view); - g_object_ref(drawing); + GisViewer *opengl = g_object_new(GIS_TYPE_OPENGL, NULL); + gis_viewer_setup(opengl, plugins, prefs); + return opengl; +} - /* OpenGL setup */ - GdkGLConfig *glconfig = gdk_gl_config_new_by_mode( - GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH | - GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA); - if (!glconfig) - g_error("Failed to create glconfig"); - if (!gtk_widget_set_gl_capability(GTK_WIDGET(self->drawing), - glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE)) - g_error("GL lacks required capabilities"); +static void gis_opengl_center_position(GisViewer *_opengl, gdouble lat, gdouble lon, gdouble elev) +{ + glRotatef(lon, 0, 1, 0); + glRotatef(-lat, 1, 0, 0); + glTranslatef(0, 0, elev2rad(elev)); +} - g_signal_connect(self->view, "location-changed", G_CALLBACK(on_state_changed), self); - g_signal_connect(self->view, "rotation-changed", G_CALLBACK(on_state_changed), self); +static void gis_opengl_project(GisViewer *_opengl, + gdouble lat, gdouble lon, gdouble elev, + gdouble *px, gdouble *py, gdouble *pz) +{ + GisOpenGL *opengl = GIS_OPENGL(_opengl); + gdouble x, y, z; + lle2xyz(lat, lon, elev, &x, &y, &z); + gluProject(x, y, z, + opengl->sphere->view->model, + opengl->sphere->view->proj, + opengl->sphere->view->view, + px, py, pz); +} - g_signal_connect(self->drawing, "map-event", G_CALLBACK(on_map), self); - g_signal_connect(self->drawing, "configure-event", G_CALLBACK(on_configure), self); - g_signal_connect(self->drawing, "expose-event", G_CALLBACK(on_expose), self); +static void gis_opengl_set_height_func(GisViewer *_opengl, GisBounds *bounds, + RoamHeightFunc height_func, gpointer user_data, gboolean update) +{ + GisOpenGL *opengl = GIS_OPENGL(_opengl); + /* TODO: get points? */ + g_mutex_lock(opengl->sphere_lock); + GList *triangles = roam_sphere_get_intersect(opengl->sphere, TRUE, + bounds->n, bounds->s, bounds->e, bounds->w); + for (GList *cur = triangles; cur; cur = cur->next) { + RoamTriangle *tri = cur->data; + RoamPoint *points[] = {tri->p.l, tri->p.m, tri->p.r, tri->split}; + for (int i = 0; i < G_N_ELEMENTS(points); i++) { + if (bounds->n >= points[i]->lat && points[i]->lat >= bounds->s && + bounds->e >= points[i]->lon && points[i]->lon >= bounds->w) { + points[i]->height_func = height_func; + points[i]->height_data = user_data; + roam_point_update_height(points[i]); + } + } + } + g_list_free(triangles); + g_mutex_unlock(opengl->sphere_lock); +} - g_signal_connect(self->drawing, "button-press-event", G_CALLBACK(on_button_press), self); - g_signal_connect(self->drawing, "enter-notify-event", G_CALLBACK(on_button_press), self); - g_signal_connect(self->drawing, "key-press-event", G_CALLBACK(on_key_press), self); - return self; +static void _gis_opengl_clear_height_func_rec(RoamTriangle *root) +{ + if (!root) + return; + RoamPoint *points[] = {root->p.l, root->p.m, root->p.r, root->split}; + for (int i = 0; i < G_N_ELEMENTS(points); i++) { + points[i]->height_func = NULL; + 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]); } -void gis_opengl_redraw(GisOpenGL *self) +static void gis_opengl_clear_height_func(GisViewer *_opengl) { - g_debug("GisOpenGL: gl_redraw"); - gtk_widget_queue_draw(GTK_WIDGET(self->drawing)); + GisOpenGL *opengl = GIS_OPENGL(_opengl); + for (int i = 0; i < G_N_ELEMENTS(opengl->sphere->roots); i++) + _gis_opengl_clear_height_func_rec(opengl->sphere->roots[i]); } -void gis_opengl_begin(GisOpenGL *self) + +static gpointer gis_opengl_add(GisViewer *_opengl, GisObject *object, + gint key, gboolean sort) { - g_assert(GIS_IS_OPENGL(self)); + g_assert(GIS_IS_OPENGL(_opengl)); + GisOpenGL *opengl = GIS_OPENGL(_opengl); + g_mutex_lock(opengl->objects_lock); + struct RenderLevel *level = g_tree_lookup(opengl->objects, (gpointer)key); + if (!level) { + level = g_new0(struct RenderLevel, 1); + g_tree_insert(opengl->objects, (gpointer)key, level); + } + GList *list = sort ? &level->sorted : &level->unsorted; + /* Put the link in the list */ + GList *link = g_new0(GList, 1); + link->data = object; + link->prev = list; + link->next = list->next; + if (list->next) + list->next->prev = link; + list->next = link; + g_mutex_unlock(opengl->objects_lock); + return link; +} - GdkGLContext *glcontext = gtk_widget_get_gl_context(GTK_WIDGET(self->drawing)); - GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(self->drawing)); +static GisObject *gis_opengl_remove(GisViewer *_opengl, gpointer _link) +{ + g_assert(GIS_IS_OPENGL(_opengl)); + GisOpenGL *opengl = GIS_OPENGL(_opengl); + g_mutex_lock(opengl->objects_lock); + GList *link = _link; + GisObject *object = link->data; + /* Just unlink and free it, link->prev is assured */ + link->prev->next = link->next; + if (link->next) + link->next->prev = link->prev; + g_free(link); + g_object_unref(object); + g_mutex_unlock(opengl->objects_lock); + return object; +} - if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext)) - g_assert_not_reached(); +/**************** + * GObject code * + ****************/ +static int _objects_cmp(gconstpointer _a, gconstpointer _b, gpointer _) +{ + gint a = (int)_a, b = (int)_b; + return a < b ? -1 : + a > b ? 1 : 0; +} +static void _objects_free(gpointer value) +{ + struct RenderLevel *level = value; + if (level->sorted.next) + g_list_free(level->sorted.next); + if (level->unsorted.next) + g_list_free(level->unsorted.next); + g_free(level); +} - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); +G_DEFINE_TYPE(GisOpenGL, gis_opengl, GIS_TYPE_VIEWER); +static void gis_opengl_init(GisOpenGL *opengl) +{ + g_debug("GisOpenGL: init"); + /* OpenGL setup */ + GdkGLConfig *glconfig = gdk_gl_config_new_by_mode( + GDK_GL_MODE_RGBA | GDK_GL_MODE_DEPTH | + GDK_GL_MODE_DOUBLE | GDK_GL_MODE_ALPHA); + if (!glconfig) + g_error("Failed to create glconfig"); + if (!gtk_widget_set_gl_capability(GTK_WIDGET(opengl), + glconfig, NULL, TRUE, GDK_GL_RGBA_TYPE)) + g_error("GL lacks required capabilities"); + g_object_unref(glconfig); + + opengl->objects = g_tree_new_full(_objects_cmp, NULL, NULL, _objects_free); + opengl->objects_lock = g_mutex_new(); + opengl->sphere = roam_sphere_new(opengl); + opengl->sphere_lock = g_mutex_new(); + +#ifndef ROAM_DEBUG + opengl->sm_source[0] = g_timeout_add_full(G_PRIORITY_HIGH_IDLE+30, 33, (GSourceFunc)on_idle, opengl, NULL); + opengl->sm_source[1] = g_timeout_add_full(G_PRIORITY_HIGH_IDLE+10, 500, (GSourceFunc)on_idle, opengl, NULL); +#else + (void)on_idle; + (void)_update_errors_cb; +#endif + + gtk_widget_add_events(GTK_WIDGET(opengl), GDK_KEY_PRESS_MASK); + g_signal_connect(opengl, "realize", G_CALLBACK(on_realize), NULL); + g_signal_connect(opengl, "configure-event", G_CALLBACK(on_configure), NULL); + g_signal_connect(opengl, "expose-event", G_CALLBACK(on_expose), NULL); + + g_signal_connect(opengl, "key-press-event", G_CALLBACK(on_key_press), NULL); + + g_signal_connect(opengl, "location-changed", G_CALLBACK(on_view_changed), NULL); + g_signal_connect(opengl, "rotation-changed", G_CALLBACK(on_view_changed), NULL); } -void gis_opengl_end(GisOpenGL *self) +static void gis_opengl_dispose(GObject *_opengl) { - g_assert(GIS_IS_OPENGL(self)); - GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current(); - gdk_gl_drawable_gl_end(gldrawable); + g_debug("GisOpenGL: dispose"); + GisOpenGL *opengl = GIS_OPENGL(_opengl); + if (opengl->sm_source[0]) { + g_source_remove(opengl->sm_source[0]); + opengl->sm_source[0] = 0; + } + if (opengl->sm_source[1]) { + g_source_remove(opengl->sm_source[1]); + opengl->sm_source[1] = 0; + } + if (opengl->ue_source) { + g_source_remove(opengl->ue_source); + opengl->ue_source = 0; + } + G_OBJECT_CLASS(gis_opengl_parent_class)->dispose(_opengl); +} +static void gis_opengl_finalize(GObject *_opengl) +{ + g_debug("GisOpenGL: finalize"); + GisOpenGL *opengl = GIS_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); } -void gis_opengl_flush(GisOpenGL *self) +static void gis_opengl_class_init(GisOpenGLClass *klass) { - g_assert(GIS_IS_OPENGL(self)); - GdkGLDrawable *gldrawable = gdk_gl_drawable_get_current(); - if (gdk_gl_drawable_is_double_buffered(gldrawable)) - gdk_gl_drawable_swap_buffers(gldrawable); - else - glFlush(); - gdk_gl_drawable_gl_end(gldrawable); + g_debug("GisOpenGL: 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; }