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 #define RENDER_STEP 1
  39 #define RENDER_GLOWTRAIL 2
  40 #define RENDER_VIEWMODEL 4
  41
  42 // LordHavoc: made this more compact, and added some more fields
  43 typedef struct
  44 {
  45         double  time; // time this state was updated
  46         vec3_t  origin;
  47         vec3_t  angles;
  48         int             effects;
  49         unsigned short modelindex;
  50         unsigned short frame;
  51         byte    colormap;
  52         byte    skin;
  53         byte    alpha;
  54         byte    scale;
  55         byte    glowsize;
  56         byte    glowcolor;
  57         byte    colormod;
  58         byte    flags;
  59 } entity_state_t;
  60
  61 typedef struct entity_s
  62 {
  63         entity_state_t                  state_baseline; // baseline for entity
  64         entity_state_t                  state_previous; // previous state (interpolating from this)
  65         entity_state_t                  state_current;  // current state (interpolating to this)
  66
  67         struct
  68         {
  69                 vec3_t                                  origin;
  70                 vec3_t                                  angles;
  71
  72                 // LordHavoc: added support for alpha transprency and other effects
  73                 float                                   alpha;                  // opacity (alpha) of the model
  74                 float                                   colormod[3];    // color tint for model
  75                 float                                   scale;                  // size the model is shown
  76                 float                                   glowsize;               // how big the glow is
  77                 byte                                    glowcolor;              // color of glow and particle trail (paletted)
  78                 byte                                    flags;                  // render flags
  79
  80                 struct model_s                  *model;                 // NULL = no model
  81                 int                                             frame;                  // current desired frame (usually identical to frame2, but frame2 is not always used)
  82                 struct efrag_s                  *efrag;                 // linked list of efrags
  83                 int                                             colormap;
  84                 int                                             effects;                // light, particles, etc
  85                 int                                             skinnum;                // for Alias models
  86
  87                 int                                             visframe;               // last frame this entity was found in an active leaf
  88
  89                 struct model_s                  *lerp_model;    // lerp resets when model changes
  90                 float                                   lerp_starttime; // start of this transition
  91                 int                                             frame1;                 // frame that the model is interpolating from
  92                 int                                             frame2;                 // frame that the model is interpolating to
  93                 double                                  framelerp;              // interpolation factor, usually computed from lerp_starttime
  94                 double                                  frame1start;    // time frame1 began playing (for framegroup animations)
  95                 double                                  frame2start;    // time frame2 began playing (for framegroup animations)
  96 //              float                                   syncbase;               // for client-side animations
  97
  98                 int                                             dlightframe;    // dynamic lighting
  99                 int                                             dlightbits[8];
 100
 101                 float                                   trail_time;
 102         // FIXME: could turn these into a union
 103 //              int                                             trivial_accept;
 104                 struct mnode_s                  *topnode;               // for bmodels, first world node
 105                                                                                                 //  that splits bmodel, or NULL if
 106                                                                                                 //  not split
 107         }
 108         render;
 109 } entity_t;
 110
 111 // !!! if this is changed, it must be changed in asm_draw.h too !!!
 112 typedef struct
 113 {
 114         vrect_t         vrect;                          // subwindow in video for refresh
 115                                                                         // FIXME: not need vrect next field here?
 116         /*
 117         vrect_t         aliasvrect;                     // scaled Alias version
 118         int                     vrectright, vrectbottom;        // right & bottom screen coords
 119         int                     aliasvrectright, aliasvrectbottom;      // scaled Alias versions
 120         float           vrectrightedge;                 // rightmost right edge we care about,
 121                                                                                 //  for use in edge list
 122         float           fvrectx, fvrecty;               // for floating-point compares
 123         float           fvrectx_adj, fvrecty_adj; // left and top edges, for clamping
 124         int                     vrect_x_adj_shift20;    // (vrect.x + 0.5 - epsilon) << 20
 125         int                     vrectright_adj_shift20; // (vrectright + 0.5 - epsilon) << 20
 126         float           fvrectright_adj, fvrectbottom_adj;
 127                                                                                 // right and bottom edges, for clamping
 128         float           fvrectright;                    // rightmost edge, for Alias clamping
 129         float           fvrectbottom;                   // bottommost edge, for Alias clamping
 130         float           horizontalFieldOfView;  // at Z = 1.0, this many X is visible
 131                                                                                 // 2.0 = 90 degrees
 132         float           xOrigin;                        // should probably always be 0.5
 133         float           yOrigin;                        // between be around 0.3 to 0.5
 134         */
 135
 136         vec3_t          vieworg;
 137         vec3_t          viewangles;
 138
 139         float           fov_x, fov_y;
 140
 141 //      int                     ambientlight;
 142 } refdef_t;
 143
 144
 145 //
 146 // refresh
 147 //
 148
 149
 150 extern  refdef_t        r_refdef;
 151 extern vec3_t   r_origin, vpn, vright, vup;
 152
 153 extern  struct texture_s        *r_notexture_mip;
 154
 155 void R_Init (void);
 156 void R_InitTextures (void);
 157 void R_InitEfrags (void);
 158 void R_RenderView (void);               // must set r_refdef first
 159 void R_ViewChanged (vrect_t *pvrect, int lineadj, float aspect);
 160                                                                 // called whenever r_refdef or vid change
 161 // LordHavoc: changed this for sake of GLQuake
 162 void R_InitSky (byte *src, int bytesperpixel);  // called at level load
 163 //void R_InitSky (struct texture_s *mt);        // called at level load
 164
 165 void R_AddEfrags (entity_t *ent);
 166 void R_RemoveEfrags (entity_t *ent);
 167
 168 void R_NewMap (void);
 169
 170 #include "r_decals.h"
 171
 172 void R_ParseParticleEffect (void);
 173 void R_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count);
 174 void R_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent);
 175 void R_RocketTrail2 (vec3_t start, vec3_t end, int type, entity_t *ent);
 176 void R_SparkShower (vec3_t org, vec3_t dir, int count);
 177 void R_BloodPuff (vec3_t org, vec3_t vel, int count);
 178 void R_FlameCube (vec3_t mins, vec3_t maxs, int count);
 179 void R_Flames (vec3_t org, vec3_t vel, int count);
 180
 181 void R_EntityParticles (entity_t *ent);
 182 void R_BlobExplosion (vec3_t org);
 183 void R_ParticleExplosion (vec3_t org, int smoke);
 184 void R_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength);
 185 void R_LavaSplash (vec3_t org);
 186 void R_TeleportSplash (vec3_t org);
 187
 188 void R_NewExplosion(vec3_t org);
 189
 190 void R_PushDlights (void);
 191 void R_DrawWorld (void);
 192 //void R_RenderDlights (void);
 193 void R_DrawParticles (void);
 194 void R_MoveParticles (void);
 195 void R_DrawExplosions (void);
 196 void R_MoveExplosions (void);