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 TOP_RANGE               16                      // soldier uniform colors
  24 #define BOTTOM_RANGE    96
  25
  26 //=============================================================================
  27
  28 typedef struct entity_s
  29 {
  30         entity_state_t                  state_baseline; // baseline for entity
  31         entity_state_t                  state_previous; // previous state (interpolating from this)
  32         entity_state_t                  state_current;  // current state (interpolating to this)
  33
  34         struct
  35         {
  36                 vec3_t                                  origin;
  37                 vec3_t                                  angles;
  38
  39                 // LordHavoc: added support for alpha transprency and other effects
  40                 float                                   alpha;                  // opacity (alpha) of the model
  41                 float                                   colormod[3];    // color tint for model
  42                 float                                   scale;                  // size the model is shown
  43                 float                                   glowsize;               // how big the glow is
  44                 byte                                    glowcolor;              // color of glow and particle trail (paletted)
  45                 byte                                    flags;                  // render flags
  46
  47                 struct model_s                  *model;                 // NULL = no model
  48                 int                                             frame;                  // current desired frame (usually identical to frame2, but frame2 is not always used)
  49                 int                                             colormap;
  50                 int                                             effects;                // light, particles, etc
  51                 int                                             skinnum;                // for Alias models
  52
  53                 int                                             visframe;               // last frame this entity was found in an active leaf
  54
  55                 struct model_s                  *lerp_model;    // lerp resets when model changes
  56                 double                                  lerp_starttime; // start of this transition
  57                 int                                             frame1;                 // frame that the model is interpolating from
  58                 int                                             frame2;                 // frame that the model is interpolating to
  59                 double                                  framelerp;              // interpolation factor, usually computed from lerp_starttime
  60                 double                                  frame1start;    // time frame1 began playing (for framegroup animations)
  61                 double                                  frame2start;    // time frame2 began playing (for framegroup animations)
  62
  63                 int                                             dlightframe;    // dynamic lighting
  64                 int                                             dlightbits[8];
  65
  66                 float                                   trail_time;
  67         }
  68         render;
  69 } entity_t;
  70
  71 typedef struct
  72 {
  73         vrect_t         vrect;                          // subwindow in video for refresh
  74                                                                         // FIXME: not need vrect next field here?
  75         /*
  76         vrect_t         aliasvrect;                     // scaled Alias version
  77         int                     vrectright, vrectbottom;        // right & bottom screen coords
  78         int                     aliasvrectright, aliasvrectbottom;      // scaled Alias versions
  79         float           vrectrightedge;                 // rightmost right edge we care about,
  80                                                                                 //  for use in edge list
  81         float           fvrectx, fvrecty;               // for floating-point compares
  82         float           fvrectx_adj, fvrecty_adj; // left and top edges, for clamping
  83         int                     vrect_x_adj_shift20;    // (vrect.x + 0.5 - epsilon) << 20
  84         int                     vrectright_adj_shift20; // (vrectright + 0.5 - epsilon) << 20
  85         float           fvrectright_adj, fvrectbottom_adj;
  86                                                                                 // right and bottom edges, for clamping
  87         float           fvrectright;                    // rightmost edge, for Alias clamping
  88         float           fvrectbottom;                   // bottommost edge, for Alias clamping
  89         float           horizontalFieldOfView;  // at Z = 1.0, this many X is visible
  90                                                                                 // 2.0 = 90 degrees
  91         float           xOrigin;                        // should probably always be 0.5
  92         float           yOrigin;                        // between be around 0.3 to 0.5
  93         */
  94
  95         vec3_t          vieworg;
  96         vec3_t          viewangles;
  97
  98         float           fov_x, fov_y;
  99
 100 //      int                     ambientlight;
 101 } refdef_t;
 102
 103
 104 //
 105 // refresh
 106 //
 107
 108
 109 extern  refdef_t        r_refdef;
 110 extern vec3_t   r_origin, vpn, vright, vup;
 111 extern qboolean hlbsp;
 112
 113 void R_Init (void);
 114 void R_RenderView (void); // must set r_refdef first
 115 void R_ViewChanged (vrect_t *pvrect, int lineadj, float aspect); // called whenever r_refdef or vid change
 116
 117 // LordHavoc: changed this for sake of GLQuake
 118 void R_InitSky (byte *src, int bytesperpixel); // called at level load
 119
 120 int R_VisibleCullBox (vec3_t mins, vec3_t maxs);
 121
 122 void R_NewMap (void);
 123
 124 #include "r_decals.h"
 125
 126 void R_ParseParticleEffect (void);
 127 void R_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count);
 128 void R_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent);
 129 void R_RocketTrail2 (vec3_t start, vec3_t end, int type, entity_t *ent);
 130 void R_SparkShower (vec3_t org, vec3_t dir, int count);
 131 void R_BloodPuff (vec3_t org, vec3_t vel, int count);
 132 void R_FlameCube (vec3_t mins, vec3_t maxs, int count);
 133 void R_Flames (vec3_t org, vec3_t vel, int count);
 134
 135 void R_EntityParticles (entity_t *ent);
 136 void R_BlobExplosion (vec3_t org);
 137 void R_ParticleExplosion (vec3_t org, int smoke);
 138 void R_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength);
 139 void R_LavaSplash (vec3_t org);
 140 void R_TeleportSplash (vec3_t org);
 141
 142 void R_NewExplosion(vec3_t org);
 143
 144 void R_PushDlights (void);
 145 void R_DrawWorld (void);
 146 //void R_RenderDlights (void);
 147 void R_DrawParticles (void);
 148 void R_MoveParticles (void);
 149 void R_DrawExplosions (void);
 150 void R_MoveExplosions (void);