libgender/view.h

#ifndef VIEW_H
#define VIEW_H

#include <set>
#include <map>
#include <utility>

using namespace std;

#include "util.h"
#include "event.h"

struct visibility_state {
  unsigned int generation;
  enum { UNKNOWN, OCCLUDED, PARTIAL, FULL } visibility;
  double last;

  visibility_state () : generation(0), last(0.), visibility(UNKNOWN) { };
};

struct occ_query {
  struct view &v;
  GLuint id;
  GLuint r;

  occ_query (view &v, GLuint id, GLuint r) : v(v), id(id), r(r) { };
};

typedef event_receiver<void, occ_query> recv_occ_query;

struct view {
  sector orig;
  point p;
  vec3 d, u;
  GLfloat fov;
  GLfloat near, far;
  int w, h;

  GLfloat gamma;

  // only to be used by friends: TODO

  GLfloat nextfar;
  GLfloat diagfact; // bounding box border to depth factor

  matrix projection;

  struct {
    plane l, r, t, b, n, f;
  } frustum;

  enum mode { DEPTH, LIGHTED } mode;
  light *l;
  set<const entity *> drawn;

  unsigned int generation;
  map<octant *, visibility_state> vismap;

  vector<octant *> vislist; // octants partially or fully visible in frustum
  vector<octant *> farlist; // octants possibly visible

  typedef pair<recv_occ_query *, GLint> oq_data;
  vector<oq_data> occ_queries;
  void begin_occ_query (recv_occ_query &recv);
  void end_occ_query ();

  void reset_projection ();

  // public
  
  void begin ();
  void pass (enum mode m);
  void end ();

  bool may_draw (const entity *e);

  view ();
  ~view ();
};

#endif

Revision:	1.18
Committed:	Sat Oct 9 22:43:31 2004 UTC (19 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.17:	+2 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#ifndef VIEW_H
2			#define VIEW_H
3
4			#include <set>
5	root	1.4	#include <map>
6	root	1.17	#include <utility>
7	root	1.1
8			using namespace std;
9
10			#include "util.h"
11	root	1.17	#include "event.h"
12	root	1.1
13	root	1.12	struct visibility_state {
14			unsigned int generation;
15			enum { UNKNOWN, OCCLUDED, PARTIAL, FULL } visibility;
16	root	1.18	double last;
17	root	1.12
18	root	1.18	visibility_state () : generation(0), last(0.), visibility(UNKNOWN) { };
19	root	1.12	};
20
21	root	1.17	struct occ_query {
22			struct view &v;
23			GLuint id;
24			GLuint r;
25
26			occ_query (view &v, GLuint id, GLuint r) : v(v), id(id), r(r) { };
27			};
28
29			typedef event_receiver<void, occ_query> recv_occ_query;
30
31	root	1.2	struct view {
32			sector orig;
33			point p;
34			vec3 d, u;
35	root	1.13	GLfloat fov;
36			GLfloat near, far;
37	root	1.2	int w, h;
38
39	root	1.13	GLfloat gamma;
40	root	1.4
41	root	1.17	// only to be used by friends: TODO
42	root	1.5
43	root	1.13	GLfloat nextfar;
44	root	1.17	GLfloat diagfact; // bounding box border to depth factor
45	root	1.13
46	root	1.8	matrix projection;
47	root	1.9
48	root	1.5	struct {
49			plane l, r, t, b, n, f;
50			} frustum;
51	root	1.14
52	root	1.13	enum mode { DEPTH, LIGHTED } mode;
53	root	1.1	light *l;
54	root	1.15	set<const entity *> drawn;
55	root	1.4
56			unsigned int generation;
57			map<octant *, visibility_state> vismap;
58	root	1.17
59	root	1.16	vector<octant *> vislist; // octants partially or fully visible in frustum
60	root	1.14	vector<octant *> farlist; // octants possibly visible
61	root	1.17
62			typedef pair<recv_occ_query *, GLint> oq_data;
63			vector<oq_data> occ_queries;
64			void begin_occ_query (recv_occ_query &recv);
65			void end_occ_query ();
66	root	1.13
67			void reset_projection ();
68
69			// public
70
71			void begin ();
72			void pass (enum mode m);
73			void end ();
74	root	1.1
75	root	1.15	bool may_draw (const entity *e);
76	root	1.1
77	root	1.12	view ();
78			~view ();
79	root	1.1	};
80	root	1.7
81	root	1.1	#endif
82