cruft removal, general cleanup, fix for delta compression bugs, generic targa writer
[divverent/darkplaces.git] / render.h
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20
21 // refresh.h -- public interface to refresh functions
22
23 #define MAXCLIPPLANES   11
24
25 #define TOP_RANGE               16                      // soldier uniform colors
26 #define BOTTOM_RANGE    96
27
28 //=============================================================================
29
30 typedef struct efrag_s
31 {
32         struct mleaf_s          *leaf;
33         struct efrag_s          *leafnext;
34         struct entity_s         *entity;
35         struct efrag_s          *entnext;
36 } efrag_t;
37
38
39 typedef struct entity_s
40 {
41         qboolean                                forcelink;              // model changed
42
43         int                                             update_type;
44
45         entity_state_t                  baseline;               // to fill in defaults in updates
46         entity_state_t                  deltabaseline;  // LordHavoc: previous frame
47
48         double                                  msgtime;                // time of last update
49         vec3_t                                  msg_origins[2]; // last two updates (0 is newest)       
50         vec3_t                                  origin;
51         vec3_t                                  msg_angles[2];  // last two updates (0 is newest)
52         vec3_t                                  angles; 
53
54         // LordHavoc: added support for alpha transprency and other effects
55         float                                   alpha;                  // opacity (alpha) of the model
56         float                                   colormod[3];    // color tint for model
57         float                                   scale;                  // size the model is shown
58         int                                             draw_lastpose, draw_pose; // for interpolation
59         float                                   draw_lerpstart; // for interpolation
60         struct model_s                  *draw_lastmodel; // for interpolation
61         float                                   trail_leftover;
62         float                                   glowsize;               // how big the glow is
63         byte                                    glowcolor;              // color of glow and particle trail (paletted)
64         byte                                    glowtrail;              // leaves a trail of particles
65         byte                                    isviewmodel;    // attached to view
66
67         struct model_s                  *model;                 // NULL = no model
68         struct efrag_s                  *efrag;                 // linked list of efrags
69         int                                             frame;
70         float                                   syncbase;               // for client-side animations
71         int                                             colormap;
72         int                                             effects;                // light, particals, etc
73         int                                             skinnum;                // for Alias models
74         int                                             visframe;               // last frame this entity was
75                                                                                         //  found in an active leaf
76                                                                                         
77         int                                             dlightframe;    // dynamic lighting
78         int                                             dlightbits[8];
79         
80 // FIXME: could turn these into a union
81         int                                             trivial_accept;
82         struct mnode_s                  *topnode;               // for bmodels, first world node
83                                                                                         //  that splits bmodel, or NULL if
84                                                                                         //  not split
85 } entity_t;
86
87 // !!! if this is changed, it must be changed in asm_draw.h too !!!
88 typedef struct
89 {
90         vrect_t         vrect;                          // subwindow in video for refresh
91                                                                         // FIXME: not need vrect next field here?
92         vrect_t         aliasvrect;                     // scaled Alias version
93         int                     vrectright, vrectbottom;        // right & bottom screen coords
94         int                     aliasvrectright, aliasvrectbottom;      // scaled Alias versions
95         float           vrectrightedge;                 // rightmost right edge we care about,
96                                                                                 //  for use in edge list
97         float           fvrectx, fvrecty;               // for floating-point compares
98         float           fvrectx_adj, fvrecty_adj; // left and top edges, for clamping
99         int                     vrect_x_adj_shift20;    // (vrect.x + 0.5 - epsilon) << 20
100         int                     vrectright_adj_shift20; // (vrectright + 0.5 - epsilon) << 20
101         float           fvrectright_adj, fvrectbottom_adj;
102                                                                                 // right and bottom edges, for clamping
103         float           fvrectright;                    // rightmost edge, for Alias clamping
104         float           fvrectbottom;                   // bottommost edge, for Alias clamping
105         float           horizontalFieldOfView;  // at Z = 1.0, this many X is visible 
106                                                                                 // 2.0 = 90 degrees
107         float           xOrigin;                        // should probably allways be 0.5
108         float           yOrigin;                        // between be around 0.3 to 0.5
109
110         vec3_t          vieworg;
111         vec3_t          viewangles;
112         
113         float           fov_x, fov_y;
114
115         int                     ambientlight;
116 } refdef_t;
117
118
119 //
120 // refresh
121 //
122
123
124 extern  refdef_t        r_refdef;
125 extern vec3_t   r_origin, vpn, vright, vup;
126
127 extern  struct texture_s        *r_notexture_mip;
128
129 void R_Init (void);
130 void R_InitTextures (void);
131 void R_InitEfrags (void);
132 void R_RenderView (void);               // must set r_refdef first
133 void R_ViewChanged (vrect_t *pvrect, int lineadj, float aspect);
134                                                                 // called whenever r_refdef or vid change
135 // LordHavoc: changed this for sake of GLQuake
136 void R_InitSky (byte *src, int bytesperpixel);  // called at level load
137 //void R_InitSky (struct texture_s *mt);        // called at level load
138
139 void R_AddEfrags (entity_t *ent);
140 void R_RemoveEfrags (entity_t *ent);
141
142 void R_NewMap (void);
143
144
145 void R_ParseParticleEffect (void);
146 void R_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count);
147 void R_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent);
148 void R_RocketTrail2 (vec3_t start, vec3_t end, int type, entity_t *ent);
149 void R_SparkShower (vec3_t org, vec3_t dir, int count);
150 void R_BloodPuff (vec3_t org);
151
152 void R_EntityParticles (entity_t *ent);
153 void R_BlobExplosion (vec3_t org);
154 void R_ParticleExplosion (vec3_t org, int smoke);
155 void R_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength);
156 void R_LavaSplash (vec3_t org);
157 void R_TeleportSplash (vec3_t org);
158
159 void R_PushDlights (void);