| … | |
… | |
| 7 | |
7 | |
| 8 | using namespace std; |
8 | using namespace std; |
| 9 | |
9 | |
| 10 | #include "util.h" |
10 | #include "util.h" |
| 11 | #include "event.h" |
11 | #include "event.h" |
|
|
12 | #include "shader.h" |
| 12 | |
13 | |
| 13 | struct visibility_base |
14 | struct visibility_base |
| 14 | { |
15 | { |
| 15 | unsigned int generation; // freshness check |
16 | unsigned int generation; // freshness check |
| 16 | }; |
17 | }; |
| … | |
… | |
| 21 | virtual void clear_visibility (visibility_base *vs) = 0; |
22 | virtual void clear_visibility (visibility_base *vs) = 0; |
| 22 | }; |
23 | }; |
| 23 | |
24 | |
| 24 | struct occ_query |
25 | struct occ_query |
| 25 | { |
26 | { |
| 26 | struct view &v; |
27 | struct view &ctx; |
| 27 | void *id; |
28 | void *id; |
| 28 | GLuint r; |
29 | GLuint count; |
| 29 | |
30 | |
| 30 | occ_query (view &v, void *id, GLuint r) : v(v), id(id), r(r) { }; |
31 | occ_query (view &ctx, void *id, GLuint count) : ctx(ctx), id(id), count(count) { }; |
| 31 | }; |
32 | }; |
| 32 | |
33 | |
| 33 | typedef event_receiver<void, occ_query> recv_occ_query; |
34 | typedef event_receiver<void, occ_query> recv_occ_query; |
|
|
35 | |
|
|
36 | enum pass_type { |
|
|
37 | DEPTH, // mandatory, render depth only |
|
|
38 | POSTDEPTH, // mandatory, occ tests or ignored |
|
|
39 | LIGHTED, // optional, render faces in full glory |
|
|
40 | }; |
|
|
41 | |
|
|
42 | struct pass_data |
|
|
43 | { |
|
|
44 | pass_type type; |
|
|
45 | |
|
|
46 | struct light *l; |
|
|
47 | |
|
|
48 | typedef map<struct material *, shader::program_object> matmap_t; |
|
|
49 | matmap_t matmap; |
|
|
50 | |
|
|
51 | pass_data (light *l, pass_type type = LIGHTED) : l(l), type(type) { } |
|
|
52 | }; |
|
|
53 | |
|
|
54 | extern pass_data pass_depth; // the standard depth pass |
|
|
55 | extern pass_data pass_postdepth; // the standard post-depth pass |
| 34 | |
56 | |
| 35 | struct view |
57 | struct view |
| 36 | { |
58 | { |
| 37 | sector orig; |
59 | sector orig; |
| 38 | point p; |
60 | point p; |
| 39 | vec3 d, u; |
61 | vec3 d, u; |
| 40 | GLfloat fov; |
62 | GLfloat fov; |
| 41 | GLfloat z_near, z_far, c_far; |
63 | GLfloat z_near, z_far, c_far; |
| 42 | int w, h; |
64 | int w, h; |
| 43 | GLfloat pixfact; // how many pixels on screen are drawn by a unit length line, *roughly* |
65 | GLfloat pixfact; // how many pixels on screen are drawn by a unit length line, *roughly* |
|
|
66 | sector eorig; // orig of currently-rendered entity in relation to the camera |
| 44 | |
67 | |
| 45 | GLfloat gamma; |
68 | GLfloat gamma; |
| 46 | |
69 | |
| 47 | // only to be used by friends: TODO |
70 | // only to be used by friends: TODO |
| 48 | |
71 | |
| 49 | GLfloat nz_far, nc_far; |
72 | GLfloat nz_far, nz_near, nc_far; |
| 50 | GLfloat diagfact; // bounding box border to depth factor |
73 | GLfloat diagfact; // bounding box border to depth factor |
| 51 | GLfloat perspfact; // perspfact * (1/depth)=> pixels |
74 | GLfloat perspfact; // perspfact * (1/depth)=> pixels |
| 52 | |
75 | |
| 53 | matrix projection; |
76 | gl::matrix projection; |
| 54 | |
77 | |
| 55 | struct { |
78 | struct { |
| 56 | plane l, r, t, b, n, f; |
79 | plane l, r, t, b, n, f; |
|
|
80 | cone c; |
|
|
81 | sphere s; |
| 57 | } frustum; |
82 | } frustum; |
| 58 | |
83 | |
| 59 | enum mode { DEPTH, POSTDEPTH, LIGHTED } mode; |
84 | pass_data *pass; |
| 60 | struct light *l; |
85 | bool first_lighted; // first lighted pass |
| 61 | set<const entity *> drawn; |
86 | |
|
|
87 | set<const entity *> drawn; // TODO: put drawn info and octant+entity visibility info into vismap! |
| 62 | |
88 | |
| 63 | unsigned int generation; |
89 | unsigned int generation; |
| 64 | typedef map<visible *, visibility_base *> visibility_map; |
90 | typedef map<visible *, visibility_base *> visibility_map; |
| 65 | visibility_map vismap; |
91 | visibility_map vismap; |
| 66 | |
92 | |
| 67 | vector<octant *> vislist; // octants partially or fully visible in frustum |
93 | vector<octant *> vislist; // octants that want to be drawn |
| 68 | vector<octant *> farlist; // octants possibly visible |
|
|
| 69 | |
94 | |
| 70 | struct oq_data { |
95 | struct oq_data { |
| 71 | recv_occ_query *recv; |
96 | recv_occ_query *recv; |
| 72 | GLint id; |
97 | GLint id; |
| 73 | void *data; |
98 | void *data; |
| … | |
… | |
| 81 | void reset_projection (); |
106 | void reset_projection (); |
| 82 | |
107 | |
| 83 | // public |
108 | // public |
| 84 | |
109 | |
| 85 | void begin (); |
110 | void begin (); |
| 86 | void pass (enum mode m); |
111 | void render (pass_data &pass); |
| 87 | void end (); |
112 | void end (); |
| 88 | |
113 | |
| 89 | bool may_draw (const entity *e); |
114 | bool may_draw (const entity *e); |
| 90 | |
115 | |
| 91 | view (); |
116 | view (); |
| 92 | ~view (); |
117 | ~view (); |
| 93 | }; |
118 | }; |
| 94 | |
119 | |
|
|
120 | struct light : view |
|
|
121 | { |
|
|
122 | // the following variables are valid in the fragment shader as well as in the vertex shader |
|
|
123 | bool has_lightvec; // is a light vector available? |
|
|
124 | shader::temp_3f sh_lightvec; // not defined unless has_lightvec is true |
|
|
125 | shader::temp_3f sh_colour; // always available for any light |
|
|
126 | |
|
|
127 | // vertex shader |
|
|
128 | virtual void vsh () = 0; |
|
|
129 | // fragment shader |
|
|
130 | virtual void fsh () = 0; |
|
|
131 | |
|
|
132 | virtual void enable (); |
|
|
133 | virtual void disable (); |
|
|
134 | |
|
|
135 | protected: |
|
|
136 | shader::uniform_3f lightpos; // or direction |
|
|
137 | }; |
|
|
138 | |
|
|
139 | struct linear_light : light |
|
|
140 | { |
|
|
141 | colour c; |
|
|
142 | GLfloat intensity; |
|
|
143 | GLfloat radius; |
|
|
144 | |
|
|
145 | void vsh (); |
|
|
146 | void fsh (); |
|
|
147 | }; |
|
|
148 | |
| 95 | #endif |
149 | #endif |
| 96 | |
150 | |
