/*
- * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
+ * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
*
* 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
#include "gis-opengl.h"
#include "gis-util.h"
-#include "gis-object.h"
#include "roam.h"
+#include "objects/gis-object.h"
+#include "objects/gis-marker.h"
+#include "objects/gis-callback.h"
+
#define FOV_DIST 2000.0
#define MPPX(dist) (4*dist/FOV_DIST)
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[] = {0.0, 0.0, 0.0, 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);
glRotatef(lat, 1, 0, 0);
glRotatef(-lon, 0, 1, 0);
- /* Misc */
- gdouble rg = MAX(0, 1-(elev/20000));
- gdouble blue = MAX(0, 1-(elev/50000));
- glClearColor(MIN(0.65,rg), MIN(0.65,rg), MIN(1,blue), 1.0f);
- glColor4f(1, 1, 1, 1);
-
glDisable(GL_ALPHA_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/********************
* Object handleing *
********************/
+static void _draw_tile(GisOpenGL *self, GisTile *tile)
+{
+ if (!tile || !tile->data)
+ return;
+ GList *triangles = roam_sphere_get_intersect(self->sphere, FALSE,
+ tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
+ if (!triangles)
+ g_warning("GisOpenGL: _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);
+ for (GList *cur = triangles; cur; cur = cur->next) {
+ RoamTriangle *tri = cur->data;
+
+ gdouble lat[3] = {tri->p.r->lat, tri->p.m->lat, tri->p.l->lat};
+ gdouble lon[3] = {tri->p.r->lon, tri->p.m->lon, tri->p.l->lon};
+
+ if (lon[0] < -90 || lon[1] < -90 || lon[2] < -90) {
+ if (lon[0] > 90) lon[0] -= 360;
+ if (lon[1] > 90) lon[1] -= 360;
+ if (lon[2] > 90) lon[2] -= 360;
+ }
+
+ gdouble n = tile->edge.n;
+ gdouble s = tile->edge.s;
+ gdouble e = tile->edge.e;
+ gdouble w = tile->edge.w;
+
+ gdouble londist = e - w;
+ gdouble latdist = n - s;
+
+ gdouble xy[3][2] = {
+ {(lon[0]-w)/londist, 1-(lat[0]-s)/latdist},
+ {(lon[1]-w)/londist, 1-(lat[1]-s)/latdist},
+ {(lon[2]-w)/londist, 1-(lat[2]-s)/latdist},
+ };
+
+ //if ((lat[0] == 90 && (xy[0][0] < 0 || xy[0][0] > 1)) ||
+ // (lat[1] == 90 && (xy[1][0] < 0 || xy[1][0] > 1)) ||
+ // (lat[2] == 90 && (xy[2][0] < 0 || xy[2][0] > 1)))
+ // g_message("w,e=%4.f,%4.f "
+ // "lat,lon,x,y="
+ // "%4.1f,%4.0f,%4.2f,%4.2f "
+ // "%4.1f,%4.0f,%4.2f,%4.2f "
+ // "%4.1f,%4.0f,%4.2f,%4.2f ",
+ // w,e,
+ // lat[0], lon[0], xy[0][0], xy[0][1],
+ // lat[1], lon[1], xy[1][0], xy[1][1],
+ // lat[2], lon[2], xy[2][0], xy[2][1]);
+
+ /* Fix poles */
+ if (lat[0] == 90 || lat[0] == -90) xy[0][0] = 0.5;
+ if (lat[1] == 90 || lat[1] == -90) xy[1][0] = 0.5;
+ if (lat[2] == 90 || lat[2] == -90) xy[2][0] = 0.5;
+
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, *(guint*)tile->data);
+ glBegin(GL_TRIANGLES);
+ glNormal3dv(tri->p.r->norm); glTexCoord2dv(xy[0]); glVertex3dv((double*)tri->p.r);
+ glNormal3dv(tri->p.m->norm); glTexCoord2dv(xy[1]); glVertex3dv((double*)tri->p.m);
+ glNormal3dv(tri->p.l->norm); glTexCoord2dv(xy[2]); glVertex3dv((double*)tri->p.l);
+ glEnd();
+ }
+ g_list_free(triangles);
+}
+
+static void _draw_tiles(GisOpenGL *self, GisTile *tile)
+{
+ /* Only draw children if possible */
+ gboolean has_children = TRUE;
+ GisTile *child;
+ gis_tile_foreach(tile, child)
+ if (!child || !child->data)
+ has_children = FALSE;
+ if (has_children)
+ /* Only draw children */
+ gis_tile_foreach(tile, child)
+ _draw_tiles(self, child);
+ else
+ /* No children, draw this tile */
+ _draw_tile(self, tile);
+}
+
static void _draw_marker(GisOpenGL *self, GisMarker *marker)
{
GisPoint *point = gis_object_center(GIS_OBJECT(marker));
glMatrixMode(GL_PROJECTION); glPushMatrix();
glMatrixMode(GL_MODELVIEW); glPushMatrix();
glPushAttrib(GL_ALL_ATTRIB_BITS);
- switch (object->type) {
- case GIS_TYPE_MARKER:
+ if (GIS_IS_MARKER(object)) {
_draw_marker(self, GIS_MARKER(object));
- break;
- case GIS_TYPE_CALLBACK:
+ } else if (GIS_IS_CALLBACK(object)) {
_draw_callback(self, GIS_CALLBACK(object));
- break;
- default:
- break;
+ } else if (GIS_IS_TILE(object)) {
+ _draw_tiles(self, GIS_TILE(object));
}
glPopAttrib();
glMatrixMode(GL_PROJECTION); glPopMatrix();
static void _load_object(GisOpenGL *self, GisObject *object)
{
g_debug("GisOpenGL: load_object");
- switch (object->type) {
- case GIS_TYPE_MARKER: {
+ if (GIS_IS_MARKER(object)) {
GisMarker *marker = GIS_MARKER(object);
cairo_surface_t *surface = cairo_get_target(marker->cairo);
gdouble width = cairo_image_surface_get_width(surface);
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 _unload_object(GisOpenGL *self, GisObject *object)
{
g_debug("GisOpenGL: unload_object");
- switch (object->type) {
- case GIS_TYPE_MARKER: {
+ if (GIS_IS_MARKER(object)) {
GisMarker *marker = GIS_MARKER(object);
g_debug("delete_texture: %d", marker->tex);
glDeleteTextures(1, &marker->tex);
- break;
- }
- default:
- break;
}
}
/* Freeze depth buffer and draw transparent objects sorted */
/* TODO: sorting */
- glDepthMask(FALSE);
+ //glDepthMask(FALSE);
+ glAlphaFunc(GL_GREATER, 0.1);
for (cur = level->sorted.next; cur; cur = cur->next, nsorted++)
_draw_object(self, GIS_OBJECT(cur->data));
/*********************
* GisViewer methods *
*********************/
-GisViewer *gis_opengl_new(GisPlugins *plugins)
+GisViewer *gis_opengl_new(GisPlugins *plugins, GisPrefs *prefs)
{
g_debug("GisOpenGL: new");
GisViewer *self = g_object_new(GIS_TYPE_OPENGL, NULL);
- self->plugins = plugins;
+ gis_viewer_setup(self, plugins, prefs);
return self;
}
px, py, pz);
}
-static void gis_opengl_render_tile(GisViewer *_self, GisTile *tile)
-{
- GisOpenGL *self = GIS_OPENGL(_self);
- if (!tile || !tile->data)
- return;
- GList *triangles = roam_sphere_get_intersect(self->sphere, FALSE,
- tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
- if (!triangles)
- g_warning("GisOpenGL: render_tiles - No triangles to draw: edges=%f,%f,%f,%f",
- tile->edge.n, tile->edge.s, tile->edge.e, tile->edge.w);
- //g_message("rendering %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);
- for (GList *cur = triangles; cur; cur = cur->next) {
- RoamTriangle *tri = cur->data;
-
- gdouble lat[3] = {tri->p.r->lat, tri->p.m->lat, tri->p.l->lat};
- gdouble lon[3] = {tri->p.r->lon, tri->p.m->lon, tri->p.l->lon};
-
- if (lon[0] < -90 || lon[1] < -90 || lon[2] < -90) {
- if (lon[0] > 90) lon[0] -= 360;
- if (lon[1] > 90) lon[1] -= 360;
- if (lon[2] > 90) lon[2] -= 360;
- }
-
- gdouble n = tile->edge.n;
- gdouble s = tile->edge.s;
- gdouble e = tile->edge.e;
- gdouble w = tile->edge.w;
-
- gdouble londist = e - w;
- gdouble latdist = n - s;
-
- gdouble xy[][3] = {
- {(lon[0]-w)/londist, 1-(lat[0]-s)/latdist},
- {(lon[1]-w)/londist, 1-(lat[1]-s)/latdist},
- {(lon[2]-w)/londist, 1-(lat[2]-s)/latdist},
- };
-
- glEnable(GL_TEXTURE_2D);
- glBindTexture(GL_TEXTURE_2D, *(guint*)tile->data);
- glBegin(GL_TRIANGLES);
- glNormal3dv(tri->p.r->norm); glTexCoord2dv(xy[0]); glVertex3dv((double*)tri->p.r);
- glNormal3dv(tri->p.m->norm); glTexCoord2dv(xy[1]); glVertex3dv((double*)tri->p.m);
- glNormal3dv(tri->p.l->norm); glTexCoord2dv(xy[2]); glVertex3dv((double*)tri->p.l);
- glEnd();
- }
- g_list_free(triangles);
-}
-
-static void gis_opengl_render_tiles(GisViewer *_self, GisTile *tile)
-{
- GisOpenGL *self = GIS_OPENGL(_self);
- /* Only render children if possible */
- gboolean has_children = TRUE;
- GisTile *child;
- gis_tile_foreach(tile, child)
- if (!child || !child->data)
- has_children = FALSE;
- if (has_children)
- /* Only render children */
- gis_tile_foreach(tile, child)
- gis_opengl_render_tiles(_self, child);
- else
- /* No children, render this tile */
- gis_opengl_render_tile(_self, tile);
-}
-
static void gis_opengl_set_height_func(GisViewer *_self, GisTile *tile,
RoamHeightFunc height_func, gpointer user_data, gboolean update)
{
g_source_remove(self->sm_source[1]);
self->sm_source[1] = 0;
}
- if (self->sphere) {
- roam_sphere_free(self->sphere);
- self->sphere = NULL;
- }
/* TODO: Cleanup/free objects tree */
G_OBJECT_CLASS(gis_opengl_parent_class)->dispose(_self);
}
{
g_debug("GisViewer: finalize");
GisOpenGL *self = GIS_OPENGL(_self);
+ roam_sphere_free(self->sphere);
g_mutex_free(self->sphere_lock);
G_OBJECT_CLASS(gis_opengl_parent_class)->finalize(_self);
}
{
g_debug("GisOpenGL: class_init");
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
- gobject_class->dispose = gis_opengl_dispose;
+ 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->render_tile = gis_opengl_render_tile;
- 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;
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