#include <config.h>
#include <math.h>
+#include <string.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <gtk/gtkgl.h>
#include "gis-opengl.h"
#include "gis-util.h"
+#include "gis-object.h"
#include "roam.h"
#define FOV_DIST 2000.0
gdk_gl_drawable_gl_end(gldrawable);
}
+
+/********************
+ * Object handleing *
+ ********************/
+static void _draw_marker(GisOpenGL *self, GisMarker *marker)
+{
+ GisPoint *point = gis_object_center(GIS_OBJECT(marker));
+ gdouble px, py, pz;
+ gis_viewer_project(GIS_VIEWER(self),
+ point->lat, point->lon, point->elev,
+ &px, &py, &pz);
+
+ g_debug("GisOpenGL: draw_marker - texture=%d", marker->tex);
+
+ 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);
+
+ glMatrixMode(GL_PROJECTION); glLoadIdentity();
+ glMatrixMode(GL_MODELVIEW); glLoadIdentity();
+ glOrtho(0, GTK_WIDGET(self)->allocation.width,
+ 0, GTK_WIDGET(self)->allocation.height, -1, 1);
+ glTranslated(px - marker->xoff,
+ py - marker->yoff, 0);
+
+ glDisable(GL_LIGHTING);
+ glDisable(GL_COLOR_MATERIAL);
+ glDisable(GL_DEPTH_TEST);
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, marker->tex);
+ g_debug("bind_texture: %d", marker->tex);
+ glBegin(GL_QUADS);
+ glTexCoord2f(1, 1); glVertex3f(width, 0 , 0);
+ glTexCoord2f(1, 0); glVertex3f(width, height, 0);
+ glTexCoord2f(0, 0); glVertex3f(0 , height, 0);
+ glTexCoord2f(0, 1); glVertex3f(0 , 0 , 0);
+ glEnd();
+}
+
+
+static void _draw_objects(GisOpenGL *self)
+{
+ g_debug("GisOpenGL: draw_objects");
+ /* Draw objects */
+ for (GList *cur = self->objects; cur; cur = cur->next) {
+ glMatrixMode(GL_PROJECTION); glPushMatrix();
+ glMatrixMode(GL_MODELVIEW); glPushMatrix();
+ GisObject *object = cur->data;
+ switch (object->type) {
+ case GIS_TYPE_MARKER:
+ _draw_marker(self, GIS_MARKER(object));
+ break;
+ default:
+ break;
+ }
+ glMatrixMode(GL_PROJECTION); glPopMatrix();
+ glMatrixMode(GL_MODELVIEW); glPopMatrix();
+ }
+}
+
+static void _load_object(GisOpenGL *self, GisObject *object)
+{
+ g_debug("GisOpenGL: load_object");
+ switch (object->type) {
+ case GIS_TYPE_MARKER: {
+ GisMarker *marker = GIS_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);
+
+ _gis_opengl_begin(self);
+ glEnable(GL_TEXTURE_2D);
+ glGenTextures(1, &marker->tex);
+ glBindTexture(GL_TEXTURE_2D, marker->tex);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+ glTexImage2D(GL_TEXTURE_2D, 0, 4, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
+ cairo_image_surface_get_data(surface));
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ g_debug("load_texture: %d", marker->tex);
+ _gis_opengl_end(self);
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+static void _free_object(GisOpenGL *self, GisObject *object)
+{
+ g_debug("GisOpenGL: free_object");
+ switch (object->type) {
+ case GIS_TYPE_MARKER: {
+ GisMarker *marker = GIS_MARKER(object);
+ g_debug("delete_texture: %d", marker->tex);
+ glDeleteTextures(1, &marker->tex);
+ break;
+ }
+ default:
+ break;
+ }
+}
+
/*************
* ROAM Code *
*************/
double width = GTK_WIDGET(self)->allocation.width;
double height = GTK_WIDGET(self)->allocation.height;
- glViewport(0, 0, width, height);
+ /* Setup OpenGL Window */
+ glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
double ang = atan(height/FOV_DIST);
return FALSE;
}
-static void on_expose_plugin(GisPlugin *plugin, gchar *name, GisOpenGL *self)
+static void _on_expose_plugin(GisPlugin *plugin, gchar *name, GisOpenGL *self)
{
_set_visuals(self);
glMatrixMode(GL_PROJECTION); glPushMatrix();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
#ifndef ROAM_DEBUG
- gis_plugins_foreach(GIS_VIEWER(self)->plugins, G_CALLBACK(on_expose_plugin), self);
-
+ gis_plugins_foreach(GIS_VIEWER(self)->plugins,
+ G_CALLBACK(_on_expose_plugin), self);
+ _draw_objects(self);
if (self->wireframe) {
_set_visuals(self);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glDisable(GL_TEXTURE_2D);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
roam_sphere_draw(self->sphere);
-
//roam_sphere_draw_normals(self->sphere);
#endif
#else
gdk_threads_enter();
#endif
-
- return TRUE;
+ return FALSE;
}
static gboolean _update_errors_cb(gpointer sphere)
_gis_opengl_end(GIS_OPENGL(_self));
}
+static void gis_opengl_add(GisViewer *_self, GisObject *object)
+{
+ g_assert(GIS_IS_OPENGL(_self));
+ GisOpenGL *self = GIS_OPENGL(_self);
+ _load_object(self, object);
+ self->objects = g_list_prepend(self->objects, object);
+}
+
+static void gis_opengl_remove(GisViewer *_self, GisObject *object)
+{
+ g_assert(GIS_IS_OPENGL(_self));
+ GisOpenGL *self = GIS_OPENGL(_self);
+ _free_object(self, object);
+ self->objects = g_list_remove(self->objects, object);
+}
+
/****************
* GObject code *
****************/
self->sm_source[1] = g_timeout_add_full(G_PRIORITY_HIGH_IDLE+10, 500, (GSourceFunc)on_idle, self, NULL);
#endif
- g_signal_connect(self, "realize", G_CALLBACK(on_realize), NULL);
- g_signal_connect(self, "configure-event", G_CALLBACK(on_configure), NULL);
- g_signal_connect(self, "expose-event", G_CALLBACK(on_expose), NULL);
+ g_signal_connect(self, "realize", G_CALLBACK(on_realize), NULL);
+ g_signal_connect(self, "configure-event", G_CALLBACK(on_configure), NULL);
+ g_signal_connect(self, "expose-event", G_CALLBACK(on_expose), NULL);
- g_signal_connect(self, "key-press-event", G_CALLBACK(on_key_press), NULL);
+ g_signal_connect(self, "key-press-event", G_CALLBACK(on_key_press), NULL);
- g_signal_connect(self, "location-changed", G_CALLBACK(on_view_changed), NULL);
- g_signal_connect(self, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
+ g_signal_connect(self, "location-changed", G_CALLBACK(on_view_changed), NULL);
+ g_signal_connect(self, "rotation-changed", G_CALLBACK(on_view_changed), NULL);
}
static void gis_opengl_dispose(GObject *_self)
{
}
G_OBJECT_CLASS(gis_opengl_parent_class)->dispose(_self);
}
+static void gis_opengl_finalize(GObject *_self)
+{
+ g_debug("GisViewer: finalize");
+ GisOpenGL *self = GIS_OPENGL(_self);
+ G_OBJECT_CLASS(gis_opengl_parent_class)->finalize(_self);
+}
static void gis_opengl_class_init(GisOpenGLClass *klass)
{
g_debug("GisOpenGL: class_init");
viewer_class->render_tiles = gis_opengl_render_tiles;
viewer_class->begin = gis_opengl_begin;
viewer_class->end = gis_opengl_end;
+ viewer_class->add = gis_opengl_add;
+ viewer_class->remove = gis_opengl_remove;
}
projects / grits / blobdiff