X-Git-Url: http://pileus.org/git/?p=grits;a=blobdiff_plain;f=src%2Fgrits-opengl.c;h=a6eb92ca7f34126f681c6be4bd9b4f27cf513d70;hp=7993741ab84c2f569cfc0640989936596ea074e9;hb=95561789ea91d7aea0d6dcd7b9321f0d1fc97188;hpb=f6ab99d5665eb7f1b32d47f2ba3b9f4542500584 diff --git a/src/grits-opengl.c b/src/grits-opengl.c index 7993741..a6eb92c 100644 --- a/src/grits-opengl.c +++ b/src/grits-opengl.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2010 Andy Spencer + * Copyright (C) 2009-2011 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 @@ -16,15 +16,15 @@ */ /** - * 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 requires (at least) OpenGL 2.0. */ #include @@ -32,12 +32,10 @@ #include #include #include -#include -#include -#include #include "grits-opengl.h" #include "grits-util.h" +#include "gtkgl.h" #include "roam.h" // #define ROAM_DEBUG @@ -46,18 +44,44 @@ /* http://research.microsoft.com/pubs/70307/tr-2006-81.pdf */ /* http://www.opengl.org/wiki/Alpha_Blending */ +/* 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 { + gint num; + GList unsorted; + GList sorted; +}; + /*********** * Helpers * ***********/ -static void _set_visuals(GisOpenGL *opengl) +static void _set_visuals(GritsOpenGL *opengl) { + double lat, lon, elev, rx, ry, rz; + grits_viewer_get_location(GRITS_VIEWER(opengl), &lat, &lon, &elev); + grits_viewer_get_rotation(GRITS_VIEWER(opengl), &rx, &ry, &rz); + + /* Set projection and clipping planes */ + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + + double width = GTK_WIDGET(opengl)->allocation.width; + double height = GTK_WIDGET(opengl)->allocation.height; + 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), width/height, near, far); + + /* Setup camera and lighting */ 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); @@ -67,7 +91,7 @@ static void _set_visuals(GisOpenGL *opengl) 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}; + float light_diffuse[] = {0.8f, 0.8f, 0.8f, 1.0f}; #endif float light_position[] = {-13*EARTH_R, 1*EARTH_R, 3*EARTH_R, 1.0f}; glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); @@ -76,9 +100,9 @@ static void _set_visuals(GisOpenGL *opengl) 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_ambient[] = {1.0, 1.0, 1.0, 1.0}; + float material_diffuse[] = {1.0, 1.0, 1.0, 1.0}; + float material_specular[] = {0.0, 0.0, 0.0, 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); @@ -111,79 +135,229 @@ static void _set_visuals(GisOpenGL *opengl) glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); //glShadeModel(GL_FLAT); - g_mutex_lock(opengl->sphere_lock); + g_mutex_lock(&opengl->sphere_lock); roam_sphere_update_view(opengl->sphere); - g_mutex_unlock(opengl->sphere_lock); + g_mutex_unlock(&opengl->sphere_lock); } +static GPtrArray *_objects_to_array(GritsOpenGL *opengl, gboolean ortho) +{ + GPtrArray *array = g_ptr_array_new(); + for (GList *i = opengl->objects->head; i; i = i->next) { + struct RenderLevel *level = i->data; + if ((ortho == TRUE && level->num < GRITS_LEVEL_HUD) || + (ortho == FALSE && level->num >= GRITS_LEVEL_HUD)) + continue; + for (GList *j = level->unsorted.next; j; j = j->next) + g_ptr_array_add(array, j->data); + for (GList *j = level->sorted.next; j; j = j->next) + g_ptr_array_add(array, j->data); + } + return array; +} /************* * 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 _) +static gboolean on_configure(GritsOpenGL *opengl, GdkEventConfigure *event, gpointer _) { - g_debug("GisOpenGL: on_configure"); - - double width = GTK_WIDGET(opengl)->allocation.width; - double height = GTK_WIDGET(opengl)->allocation.height; - - /* Setup OpenGL Window */ - glViewport(0, 0, width, height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - double ang = atan(height/FOV_DIST); - gluPerspective(rad2deg(ang)*2, width/height, 1000, 10*EARTH_R); + g_debug("GritsOpenGL: on_configure"); + _set_visuals(opengl); #ifndef ROAM_DEBUG - g_mutex_lock(opengl->sphere_lock); + g_mutex_lock(&opengl->sphere_lock); roam_sphere_update_errors(opengl->sphere); - g_mutex_unlock(opengl->sphere_lock); + g_mutex_unlock(&opengl->sphere_lock); #endif return FALSE; } -static gboolean _draw_level(gpointer key, gpointer value, gpointer user_data) +static gint run_picking(GritsOpenGL *opengl, GdkEvent *event, + GPtrArray *objects, GritsObject **top) { - g_debug("GisOpenGL: _draw_level - level=%-4d", (int)key); - GisOpenGL *opengl = user_data; - struct RenderLevel *level = value; + /* 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 void _draw_level(gpointer _level, gpointer _opengl) +{ + GritsOpenGL *opengl = _opengl; + struct RenderLevel *level = _level; + + g_debug("GritsOpenGL: _draw_level - level=%-4d", level->num); int nsorted = 0, nunsorted = 0; GList *cur = NULL; - /* Draw opaque objects without sorting */ - glDepthMask(TRUE); - glClear(GL_DEPTH_BUFFER_BIT); + /* Configure individual levels */ + if (level->num < GRITS_LEVEL_WORLD) { + /* Disable depth for background levels */ + glDepthMask(FALSE); + glDisable(GL_ALPHA_TEST); + } else if (level->num < GRITS_LEVEL_OVERLAY) { + /* Enable depth and alpha for world levels */ + glEnable(GL_ALPHA_TEST); + glAlphaFunc(GL_GREATER, 0.1); + } else { + /* Disable depth for Overlay/HUD levels */ + glDepthMask(FALSE); + } + + /* Start ortho */ + if (level->num >= 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->unsorted.next; cur; cur = cur->next, nunsorted++) - gis_object_draw( GIS_OBJECT(cur->data), opengl); + grits_object_draw(GRITS_OBJECT(cur->data), opengl); - /* Freeze depth buffer and draw transparent objects sorted */ - /* TODO: sorting */ - //glDepthMask(FALSE); - glAlphaFunc(GL_GREATER, 0.1); + /* Draw sorted objects using depth testing + * These are things that are actually part of the world */ + glEnable(GL_DEPTH_TEST); for (cur = level->sorted.next; cur; cur = cur->next, nsorted++) - gis_object_draw(GIS_OBJECT(cur->data), opengl); + grits_object_draw(GRITS_OBJECT(cur->data), opengl); + + /* End ortho */ + if (level->num >= GRITS_LEVEL_HUD) { + glMatrixMode(GL_PROJECTION); glPopMatrix(); + glMatrixMode(GL_MODELVIEW); glPopMatrix(); + } + + /* Leave depth buffer write enabled */ + glDepthMask(TRUE); /* 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"); + + if (opengl->pickmode) + return on_motion_notify(opengl, (GdkEventMotion*)event, NULL); - glClear(GL_COLOR_BUFFER_BIT); + gtk_gl_begin(GTK_WIDGET(opengl)); + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); _set_visuals(opengl); #ifdef ROAM_DEBUG @@ -195,26 +369,22 @@ static gboolean on_expose(GisOpenGL *opengl, GdkEventExpose *event, gpointer _) (void)_draw_level; //roam_sphere_draw_normals(opengl->sphere); #else - g_mutex_lock(opengl->objects_lock); - g_tree_foreach(opengl->objects, _draw_level, opengl); - if (opengl->wireframe) { - glClear(GL_DEPTH_BUFFER_BIT); + g_mutex_lock(&opengl->objects_lock); + if (opengl->wireframe) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); - roam_sphere_draw(opengl->sphere); - } - g_mutex_unlock(opengl->objects_lock); + g_queue_foreach(opengl->objects, _draw_level, opengl); + g_mutex_unlock(&opengl->objects_lock); #endif - GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(GTK_WIDGET(opengl)); - gdk_gl_drawable_swap_buffers(gldrawable); + gtk_gl_end(GTK_WIDGET(opengl)); - 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; @@ -223,6 +393,10 @@ static gboolean on_key_press(GisOpenGL *opengl, GdkEventKey *event, gpointer _) 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); @@ -233,19 +407,33 @@ static gboolean on_key_press(GisOpenGL *opengl, GdkEventKey *event, gpointer _) return FALSE; } +static gboolean on_chained_event(GritsOpenGL *opengl, GdkEvent *event, gpointer _) +{ + for (GList *i = opengl->objects->tail; i; i = i->prev) { + struct RenderLevel *level = i->data; + for (GList *j = level->unsorted.next; j; j = j->next) + if (grits_object_event(j->data, event)) + return TRUE; + for (GList *j = level->sorted.next; j; j = j->next) + if (grits_object_event(j->data, event)) + return TRUE; + } + return FALSE; +} + static gboolean _update_errors_cb(gpointer _opengl) { - GisOpenGL *opengl = _opengl; - g_mutex_lock(opengl->sphere_lock); + GritsOpenGL *opengl = _opengl; + g_mutex_lock(&opengl->sphere_lock); roam_sphere_update_errors(opengl->sphere); - g_mutex_unlock(opengl->sphere_lock); + 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) @@ -257,25 +445,20 @@ static void on_view_changed(GisOpenGL *opengl, #endif } -static gboolean on_idle(GisOpenGL *opengl) +static gboolean on_idle(GritsOpenGL *opengl) { - //g_debug("GisOpenGL: on_idle"); - g_mutex_lock(opengl->sphere_lock); + //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)); - g_mutex_unlock(opengl->sphere_lock); + g_mutex_unlock(&opengl->sphere_lock); return TRUE; } -static void on_realize(GisOpenGL *opengl, gpointer _) +static void on_realize(GritsOpenGL *opengl, gpointer _) { - g_debug("GisOpenGL: on_realize"); - - /* Start OpenGL */ - 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(); + g_debug("GritsOpenGL: on_realize"); + gtk_gl_begin(GTK_WIDGET(opengl)); /* Connect signals and idle functions now that opengl is fully initialized */ gtk_widget_add_events(GTK_WIDGET(opengl), GDK_KEY_PRESS_MASK); @@ -287,6 +470,13 @@ static void on_realize(GisOpenGL *opengl, gpointer _) g_signal_connect(opengl, "location-changed", G_CALLBACK(on_view_changed), NULL); g_signal_connect(opengl, "rotation-changed", G_CALLBACK(on_view_changed), NULL); + g_signal_connect(opengl, "motion-notify-event", G_CALLBACK(on_motion_notify), NULL); + g_signal_connect_after(opengl, "key-press-event", G_CALLBACK(on_chained_event), NULL); + g_signal_connect_after(opengl, "key-release-event", G_CALLBACK(on_chained_event), NULL); + g_signal_connect_after(opengl, "button-press-event", G_CALLBACK(on_chained_event), NULL); + g_signal_connect_after(opengl, "button-release-event", G_CALLBACK(on_chained_event), NULL); + g_signal_connect_after(opengl, "motion-notify-event", G_CALLBACK(on_chained_event), NULL); + #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); @@ -300,37 +490,37 @@ static void on_realize(GisOpenGL *opengl, gpointer _) } /********************* - * 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, @@ -340,12 +530,38 @@ static void gis_opengl_project(GisViewer *_opengl, px, py, pz); } -static void gis_opengl_set_height_func(GisViewer *_opengl, GisBounds *bounds, +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) { - GisOpenGL *opengl = GIS_OPENGL(_opengl); + GritsOpenGL *opengl = GRITS_OPENGL(_opengl); /* TODO: get points? */ - g_mutex_lock(opengl->sphere_lock); + 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) { @@ -361,10 +577,10 @@ static void gis_opengl_set_height_func(GisViewer *_opengl, GisBounds *bounds, } } g_list_free(triangles); - g_mutex_unlock(opengl->sphere_lock); + 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; @@ -374,27 +590,56 @@ static void _gis_opengl_clear_height_func_rec(RoamTriangle *root) 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 gint _objects_find(gconstpointer a, gconstpointer b) +{ + const struct RenderLevel *level = a; + const gint *key = b; + return level->num == *key ? 0 : 1; +} + +static gint _objects_sort(gconstpointer _a, gconstpointer _b, gpointer _) +{ + const struct RenderLevel *a = _a; + const struct RenderLevel *b = _b; + return a->num < b->num ? -1 : + a->num > b->num ? 1 : 0; +} + +static void _objects_free(gpointer value, gpointer _) +{ + 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); } -static gpointer gis_opengl_add(GisViewer *_opengl, GisObject *object, - gint key, gboolean sort) +static gpointer grits_opengl_add(GritsViewer *_opengl, GritsObject *object, + gint num, gboolean sort) { - 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) { + g_assert(GRITS_IS_OPENGL(_opengl)); + GritsOpenGL *opengl = GRITS_OPENGL(_opengl); + g_mutex_lock(&opengl->objects_lock); + struct RenderLevel *level = NULL; + GList *tmp = g_queue_find_custom(opengl->objects, &num, _objects_find); + if (tmp) { + level = tmp->data; + } else { level = g_new0(struct RenderLevel, 1); - g_tree_insert(opengl->objects, (gpointer)key, level); + level->num = num; + g_queue_insert_sorted(opengl->objects, level, _objects_sort, NULL); } GList *list = sort ? &level->sorted : &level->unsorted; /* Put the link in the list */ @@ -405,73 +650,47 @@ static gpointer gis_opengl_add(GisViewer *_opengl, GisObject *object, if (list->next) list->next->prev = link; list->next = link; - g_mutex_unlock(opengl->objects_lock); + g_mutex_unlock(&opengl->objects_lock); return link; } -static GisObject *gis_opengl_remove(GisViewer *_opengl, gpointer _link) +static GritsObject *grits_opengl_remove(GritsViewer *_opengl, GritsObject *object) { - g_assert(GIS_IS_OPENGL(_opengl)); - GisOpenGL *opengl = GIS_OPENGL(_opengl); - g_mutex_lock(opengl->objects_lock); - GList *link = _link; - GisObject *object = link->data; + g_assert(GRITS_IS_OPENGL(_opengl)); + GritsOpenGL *opengl = GRITS_OPENGL(_opengl); + GList *link = object->ref; + g_mutex_lock(&opengl->objects_lock); /* Just unlink and free it, link->prev is assured */ link->prev->next = link->next; if (link->next) link->next->prev = link->prev; + g_mutex_unlock(&opengl->objects_lock); + object->ref = NULL; + object->viewer = NULL; g_free(link); g_object_unref(object); - g_mutex_unlock(opengl->objects_lock); return object; } /**************** * 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) +G_DEFINE_TYPE(GritsOpenGL, grits_opengl, GRITS_TYPE_VIEWER); +static void grits_opengl_init(GritsOpenGL *opengl) { - 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); -} - -G_DEFINE_TYPE(GisOpenGL, gis_opengl, GIS_TYPE_VIEWER); -static void gis_opengl_init(GisOpenGL *opengl) -{ - g_debug("GisOpenGL: init"); - 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(); - - /* Set OpenGL before "realize" */ - 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); - - /* Finish OpenGL init after it's realized */ - g_signal_connect(opengl, "realize", G_CALLBACK(on_realize), NULL); + g_debug("GritsOpenGL: init"); + opengl->objects = g_queue_new(); + opengl->sphere = roam_sphere_new(opengl); + g_mutex_init(&opengl->objects_lock); + g_mutex_init(&opengl->sphere_lock); + gtk_gl_enable(GTK_WIDGET(opengl)); + gtk_widget_add_events(GTK_WIDGET(opengl), GDK_KEY_PRESS_MASK); + g_signal_connect(opengl, "map", G_CALLBACK(on_realize), 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; @@ -484,30 +703,32 @@ static void gis_opengl_dispose(GObject *_opengl) 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_queue_foreach(opengl->objects, _objects_free, NULL); + g_queue_free(opengl->objects); + g_mutex_clear(&opengl->objects_lock); + g_mutex_clear(&opengl->sphere_lock); + 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->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; + viewer_class->remove = grits_opengl_remove; }