예제 #1
0
static void TraverseFog(GF_Node *node, void *rs, Bool is_destroy)
{
	Fixed density, vrange;
	SFVec3f start, end;
	ViewStack *vp_st;
	M_Viewpoint *vp;
	GF_TraverseState *tr_state = (GF_TraverseState *)rs;
	M_Fog *fog = (M_Fog *) node;
	ViewStack *st = (ViewStack *) gf_node_get_private(node);

	if (is_destroy) {
		DestroyViewStack(node);
		return;
	}

	if (!tr_state->fogs) return;

	/*first traverse, bound if needed*/
	if (gf_list_find(tr_state->fogs, node) < 0) {
		gf_list_add(tr_state->fogs, node);
		if (gf_list_get(tr_state->fogs, 0) == fog) {
			if (!fog->isBound) Bindable_SetIsBound(node, 1);
		}
		assert(gf_list_find(st->reg_stacks, tr_state->fogs)==-1);
		gf_list_add(st->reg_stacks, tr_state->fogs);

		gf_mx_copy(st->world_view_mx, tr_state->model_matrix);
		/*in any case don't draw the first time*/
		gf_sc_invalidate(tr_state->visual->compositor, NULL);
		return;
	}
	/*not evaluating, return*/
	if (tr_state->traversing_mode != TRAVERSE_BINDABLE) {
		if ((tr_state->traversing_mode==TRAVERSE_SORT) || (tr_state->traversing_mode==TRAVERSE_GET_BOUNDS) )
			gf_mx_copy(st->world_view_mx, tr_state->model_matrix);
		return;
	}
	/*not bound*/
	if (!fog->isBound || !fog->visibilityRange) return;

	/*fog visibility is expressed in current bound VP so get its matrix*/
	vp = (M_Viewpoint*)gf_list_get(tr_state->viewpoints, 0);
	vp_st = NULL;
	if (vp && vp->isBound) vp_st = (ViewStack *) gf_node_get_private((GF_Node *)vp);

	start.x = start.y = start.z = 0;
	end.x = end.y = 0;
	end.z = fog->visibilityRange;
	if (vp_st) {
		gf_mx_apply_vec(&vp_st->world_view_mx, &start);
		gf_mx_apply_vec(&vp_st->world_view_mx, &end);
	}
	gf_mx_apply_vec(&st->world_view_mx, &start);
	gf_mx_apply_vec(&st->world_view_mx, &end);
	gf_vec_diff(end, end, start);
	vrange = gf_vec_len(end);

	density = gf_invfix(vrange);
	visual_3d_set_fog(tr_state->visual, fog->fogType.buffer, fog->color, density, vrange);
}
예제 #2
0
static Bool OnSphereSensor(GF_SensorHandler *sh, Bool is_over, Bool is_cancel, GF_Event *ev, GF_Compositor *compositor)
{
	Bool is_mouse = (ev->type<=GF_EVENT_MOUSEWHEEL) ? 1 : 0;
	M_SphereSensor *sphere = (M_SphereSensor *)sh->sensor;
	SphereSensorStack *st = (SphereSensorStack *) gf_node_get_private(sh->sensor);


	if (sphere->isActive && (!sphere->enabled
	                         || /*mouse*/((ev->type==GF_EVENT_MOUSEUP) && (ev->mouse.button==GF_MOUSE_LEFT))
	                         || /*keyboar*/(!is_mouse && (!is_over|| ((ev->type==GF_EVENT_KEYDOWN) && (ev->key.key_code==GF_KEY_ENTER))))
	                        ) ) {
		if (sphere->autoOffset) {
			sphere->offset = sphere->rotation_changed;
			if (!is_cancel) gf_node_event_out(sh->sensor, 2/*"offset"*/);
		}
		sphere->isActive = 0;
		if (!is_cancel) gf_node_event_out(sh->sensor, 3/*"isActive"*/);
		sh->grabbed = 0;
		return is_cancel ? 0 : 1;
	}
	else if (is_mouse) {
		if (!sphere->isActive && (ev->type==GF_EVENT_MOUSEDOWN) && (ev->mouse.button==GF_MOUSE_LEFT)) {
			st->center.x = st->center.y = st->center.z = 0;
			gf_mx_apply_vec(&compositor->hit_local_to_world, &st->center);
			st->radius = gf_vec_len(compositor->hit_local_point);
			if (!st->radius) st->radius = FIX_ONE;
			st->grab_vec = gf_vec_scale(compositor->hit_local_point, gf_invfix(st->radius));

			sphere->isActive = 1;
			gf_node_event_out(sh->sensor, 3/*"isActive"*/);
			sh->grabbed = 1;
			return 1;
		}
		else if (sphere->isActive) {
			SFVec3f vec, axis;
			SFVec4f q1, q2;
			SFRotation r;
			Fixed cl;
			if (is_over) {
				sphere->trackPoint_changed = compositor->hit_local_point;
				gf_node_event_out(sh->sensor, 5/*"trackPoint_changed"*/);
			} else {
				GF_Ray r;
				r = compositor->hit_world_ray;
				gf_mx_apply_ray(&compositor->hit_world_to_local, &r);
				if (!gf_ray_hit_sphere(&r, NULL, st->radius, &compositor->hit_local_point)) {
					vec.x = vec.y = vec.z = 0;
					/*doesn't work properly...*/
					compositor->hit_local_point = gf_closest_point_to_line(r.orig, r.dir, vec);
				}
			}

			vec = gf_vec_scale(compositor->hit_local_point, gf_invfix(st->radius));
			axis = gf_vec_cross(st->grab_vec, vec);
			cl = gf_vec_len(axis);

			if (cl < -FIX_ONE) cl = -FIX_ONE;
			else if (cl > FIX_ONE) cl = FIX_ONE;
			r.q = gf_asin(cl);
			if (gf_vec_dot(st->grab_vec, vec) < 0) r.q += GF_PI / 2;

			gf_vec_norm(&axis);
			r.x = axis.x;
			r.y = axis.y;
			r.z = axis.z;
			q1 = gf_quat_from_rotation(r);
			if (sphere->autoOffset) {
				q2 = gf_quat_from_rotation(sphere->offset);
				q1 = gf_quat_multiply(&q1, &q2);
			}
			sphere->rotation_changed = gf_quat_to_rotation(&q1);
			gf_node_event_out(sh->sensor, 4/*"rotation_changed"*/);
			return 1;
		}
	} else {
		if (!sphere->isActive && is_over && (ev->type==GF_EVENT_KEYDOWN) && (ev->key.key_code==GF_KEY_ENTER)) {
			sphere->isActive = 1;
			sphere->rotation_changed = sphere->offset;
			gf_node_event_out(sh->sensor, 3/*"isActive"*/);
			return 1;
		}
		else if (sphere->isActive && (ev->type==GF_EVENT_KEYDOWN)) {
			SFVec4f res, rot;
			Fixed diff = GF_PI/64;

			res = sphere->rotation_changed;
			switch (ev->key.key_code) {
			case GF_KEY_LEFT:
				diff = -diff;
			case GF_KEY_RIGHT:
				rot.x = 0;
				rot.y = FIX_ONE;
				rot.z = 0;
				rot.q = diff;
				res = gf_quat_from_rotation(res);
				rot = gf_quat_from_rotation(rot);
				rot = gf_quat_multiply(&rot, &res);
				res = gf_quat_to_rotation(&rot);
				break;
			case GF_KEY_DOWN:
				diff = -diff;
			case GF_KEY_UP:
				if (ev->key.flags & GF_KEY_MOD_SHIFT) {
					rot.x = 0;
					rot.z = FIX_ONE;
				} else {
					rot.x = FIX_ONE;
					rot.z = 0;
				}
				rot.y = 0;
				rot.q = diff;
				res = gf_quat_from_rotation(res);
				rot = gf_quat_from_rotation(rot);
				rot = gf_quat_multiply(&rot, &res);
				res = gf_quat_to_rotation(&rot);
				break;
			case GF_KEY_HOME:
				res = sphere->offset;
				break;
			default:
				return 0;
			}
			sphere->rotation_changed = res;
			gf_node_event_out(sh->sensor, 4/*"rotation_changed"*/);
			return 1;
		}
	}
	return 0;
}
예제 #3
0
파일: surface.c 프로젝트: golgol7777/gpac
GF_Err evg_surface_fill(GF_SURFACE _this, GF_STENCIL stencil)
{
	GF_Rect rc;
	GF_Matrix2D mat, st_mat;
	Bool restore_filter;
	EVGSurface *surf = (EVGSurface *)_this;
	EVGStencil *sten = (EVGStencil *)stencil;
	if (!surf || !stencil) return GF_BAD_PARAM;
	if (!surf->ftoutline.n_points) return GF_OK;
	surf->sten = sten;

	/*setup ft raster calllbacks*/
	if (!setup_grey_callback(surf)) return GF_OK;

/*	surf->ftparams.gray_spans = gray_spans_stub; */

	get_surface_world_matrix(surf, &mat);

	restore_filter = 0;
	/*get path frame for texture convertion */
	if (sten->type != GF_STENCIL_SOLID) {
		rc = surf->path_bounds;
		gf_mx2d_apply_rect(&mat, &rc);
		rc.x = rc.y = 0;
		/*assign target frame and matrix*/
		sten->frame = rc;
		gf_mx2d_copy(sten->pmat, surf->mat);
		gf_mx2d_inverse(&sten->pmat);

		gf_mx2d_copy(st_mat, sten->smat);
		gf_mx2d_init(sten->smat);
		switch (sten->type) {
		case GF_STENCIL_TEXTURE:
			if (! ((EVG_Texture *)sten)->pixels) return GF_BAD_PARAM;

			if (((EVG_Texture *)sten)->mod & GF_TEXTURE_FLIP) {
				if (!surf->center_coords) gf_mx2d_add_scale(&sten->smat, FIX_ONE, -FIX_ONE);
			} else {
				if (surf->center_coords) gf_mx2d_add_scale(&sten->smat, FIX_ONE, -FIX_ONE);
			}
			evg_set_texture_active(sten);
			gf_mx2d_add_matrix(&sten->smat, &st_mat);
			gf_mx2d_add_matrix(&sten->smat, &mat);
			gf_mx2d_inverse(&sten->smat);
			evg_bmp_init(sten);
			if (((EVG_Texture *)sten)->filter == GF_TEXTURE_FILTER_DEFAULT) {
				restore_filter = 1;
				((EVG_Texture *)sten)->filter = surf->texture_filter;
			}

			break;
		case GF_STENCIL_LINEAR_GRADIENT:
		{
			EVG_LinearGradient *lin = (EVG_LinearGradient *)sten;
			gf_mx2d_add_matrix(&sten->smat, &st_mat);
			gf_mx2d_add_matrix(&sten->smat, &mat);
			gf_mx2d_inverse(&sten->smat);
			/*and finalize matrix in gradient coord system*/
			gf_mx2d_add_matrix(&sten->smat, &lin->vecmat);
			gf_mx2d_add_scale(&sten->smat, INT2FIX(1<<EVGGRADIENTBITS), INT2FIX(1<<EVGGRADIENTBITS));

		}
			break;
		case GF_STENCIL_RADIAL_GRADIENT:
		{
			EVG_RadialGradient *rad = (EVG_RadialGradient*)sten;
			gf_mx2d_copy(sten->smat, st_mat);
			gf_mx2d_add_matrix(&sten->smat, &mat);
			gf_mx2d_inverse(&sten->smat);
			gf_mx2d_add_translation(&sten->smat, -rad->center.x, -rad->center.y);
			gf_mx2d_add_scale(&sten->smat, gf_invfix(rad->radius.x), gf_invfix(rad->radius.y));

			rad->d_f.x = gf_divfix(rad->focus.x - rad->center.x, rad->radius.x);
			rad->d_f.y = gf_divfix(rad->focus.y - rad->center.y, rad->radius.y);
			/*init*/
			evg_radial_init(rad);
		}
			break;
		}
	}

	if (surf->useClipper) {
		surf->ftparams.clip_xMin = surf->clipper.x;
		surf->ftparams.clip_yMin = surf->clipper.y;
		surf->ftparams.clip_xMax = (surf->clipper.x + surf->clipper.width);
		surf->ftparams.clip_yMax = (surf->clipper.y + surf->clipper.height);
	} else {
		surf->ftparams.clip_xMin = 0;
		surf->ftparams.clip_yMin = 0;
		surf->ftparams.clip_xMax = (surf->width);
		surf->ftparams.clip_yMax = (surf->height);
	}

	/*and call the raster*/
	evg_raster_render(surf->raster, &surf->ftparams);

	/*restore stencil matrix*/
	if (sten->type != GF_STENCIL_SOLID) {
		gf_mx2d_copy(sten->smat, st_mat);
		if (restore_filter) ((EVG_Texture *)sten)->filter = GF_TEXTURE_FILTER_DEFAULT;
	}
	surf->sten = 0L;
	return GF_OK;
}
예제 #4
0
static void OnSphereSensor(SensorHandler *sh, Bool is_over, GF_Event *ev, RayHitInfo *hit_info)
{
	M_SphereSensor *sphere = (M_SphereSensor *)sh->owner;
	SphereSensorStack *st = (SphereSensorStack *) gf_node_get_private(sh->owner);

	if (sphere->isActive && (!sphere->enabled || ((ev->type==GF_EVENT_MOUSEUP) && (ev->mouse.button==GF_MOUSE_LEFT)) ) ) {
		if (sphere->autoOffset) {
			sphere->offset = sphere->rotation_changed;
			gf_node_event_out_str(sh->owner, "offset");
		}
		sphere->isActive = 0;
		gf_node_event_out_str(sh->owner, "isActive");
		R3D_SetGrabbed(st->compositor, 0);
	}
	else if (!sphere->isActive && (ev->type==GF_EVENT_MOUSEDOWN) && (ev->mouse.button==GF_MOUSE_LEFT)) {
		st->center.x = st->center.y = st->center.z = 0;
		gf_mx_apply_vec(&hit_info->local_to_world, &st->center);
		st->radius = gf_vec_len(hit_info->local_point);
		if (!st->radius) st->radius = FIX_ONE;
		st->grab_vec = gf_vec_scale(hit_info->local_point, gf_invfix(st->radius));

		sphere->isActive = 1;
		gf_node_event_out_str(sh->owner, "isActive");
		R3D_SetGrabbed(st->compositor, 1);
	}
	else if (sphere->isActive) {
		SFVec3f vec, axis;
		SFVec4f q1, q2;
		SFRotation r;
		Fixed cl;
		if (is_over) {
			sphere->trackPoint_changed = hit_info->local_point;
			gf_node_event_out_str(sh->owner, "trackPoint_changed");
		} else {
			GF_Ray r;
			r = hit_info->world_ray;
			gf_mx_apply_ray(&hit_info->world_to_local, &r);
			if (!gf_ray_hit_sphere(&r, NULL, st->radius, &hit_info->local_point)) {
				vec.x = vec.y = vec.z = 0;
				/*doesn't work properly...*/
				hit_info->local_point = gf_closest_point_to_line(r.orig, r.dir, vec);
			}
		}

		vec = gf_vec_scale(hit_info->local_point, gf_invfix(st->radius));
		axis = gf_vec_cross(st->grab_vec, vec);
		cl = gf_vec_len(axis);

		if (cl < -FIX_ONE) cl = -FIX_ONE;
		else if (cl > FIX_ONE) cl = FIX_ONE;
		r.q = gf_asin(cl);
		if (gf_vec_dot(st->grab_vec, vec) < 0) r.q += GF_PI / 2;

		gf_vec_norm(&axis);
		r.x = axis.x; r.y = axis.y; r.z = axis.z;
		q1 = gf_quat_from_rotation(r);
		if (sphere->autoOffset) {
			q2 = gf_quat_from_rotation(sphere->offset);
			q1 = gf_quat_multiply(&q1, &q2);
		}
		sphere->rotation_changed = gf_quat_to_rotation(&q1);
		gf_node_event_out_str(sh->owner, "rotation_changed");
	}
}