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| 298 | serge | 1 | // Emacs style mode select -*- C++ -*- |
| 2 | //----------------------------------------------------------------------------- |
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| 3 | // |
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| 4 | // $Id:$ |
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| 5 | // |
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| 6 | // Copyright (C) 1993-1996 by id Software, Inc. |
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| 7 | // |
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| 8 | // This source is available for distribution and/or modification |
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| 9 | // only under the terms of the DOOM Source Code License as |
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| 10 | // published by id Software. All rights reserved. |
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| 11 | // |
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| 12 | // The source is distributed in the hope that it will be useful, |
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| 13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | // FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License |
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| 15 | // for more details. |
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| 16 | // |
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| 17 | // DESCRIPTION: |
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| 18 | // System specific interface stuff. |
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| 19 | // |
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| 20 | //----------------------------------------------------------------------------- |
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| 21 | |||
| 22 | |||
| 23 | #ifndef __R_MAIN__ |
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| 24 | #define __R_MAIN__ |
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| 25 | |||
| 26 | #include "d_player.h" |
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| 27 | #include "r_data.h" |
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| 28 | |||
| 29 | |||
| 30 | #ifdef __GNUG__ |
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| 31 | #pragma interface |
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| 32 | #endif |
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| 33 | |||
| 34 | |||
| 35 | // |
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| 36 | // POV related. |
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| 37 | // |
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| 38 | extern fixed_t viewcos; |
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| 39 | extern fixed_t viewsin; |
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| 40 | |||
| 41 | extern int viewwidth; |
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| 42 | extern int viewheight; |
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| 43 | extern int viewwindowx; |
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| 44 | extern int viewwindowy; |
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| 45 | |||
| 46 | |||
| 47 | |||
| 48 | extern int centerx; |
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| 49 | extern int centery; |
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| 50 | |||
| 51 | extern fixed_t centerxfrac; |
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| 52 | extern fixed_t centeryfrac; |
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| 53 | extern fixed_t projection; |
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| 54 | |||
| 55 | extern int validcount; |
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| 56 | |||
| 57 | extern int linecount; |
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| 58 | extern int loopcount; |
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| 59 | |||
| 60 | |||
| 61 | // |
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| 62 | // Lighting LUT. |
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| 63 | // Used for z-depth cuing per column/row, |
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| 64 | // and other lighting effects (sector ambient, flash). |
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| 65 | // |
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| 66 | |||
| 67 | // Lighting constants. |
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| 68 | // Now why not 32 levels here? |
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| 69 | #define LIGHTLEVELS 16 |
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| 70 | #define LIGHTSEGSHIFT 4 |
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| 71 | |||
| 72 | #define MAXLIGHTSCALE 48 |
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| 73 | #define LIGHTSCALESHIFT 12 |
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| 74 | #define MAXLIGHTZ 128 |
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| 75 | #define LIGHTZSHIFT 20 |
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| 76 | |||
| 77 | extern lighttable_t* scalelight[LIGHTLEVELS][MAXLIGHTSCALE]; |
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| 78 | extern lighttable_t* scalelightfixed[MAXLIGHTSCALE]; |
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| 79 | extern lighttable_t* zlight[LIGHTLEVELS][MAXLIGHTZ]; |
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| 80 | |||
| 81 | extern int extralight; |
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| 82 | extern lighttable_t* fixedcolormap; |
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| 83 | |||
| 84 | |||
| 85 | // Number of diminishing brightness levels. |
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| 86 | // There a 0-31, i.e. 32 LUT in the COLORMAP lump. |
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| 87 | #define NUMCOLORMAPS 32 |
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| 88 | |||
| 89 | |||
| 90 | // Blocky/low detail mode. |
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| 91 | //B remove this? |
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| 92 | // 0 = high, 1 = low |
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| 93 | extern int detailshift; |
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| 94 | |||
| 95 | |||
| 96 | // |
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| 97 | // Function pointers to switch refresh/drawing functions. |
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| 98 | // Used to select shadow mode etc. |
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| 99 | // |
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| 100 | extern void (*colfunc) (void); |
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| 101 | extern void (*basecolfunc) (void); |
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| 102 | extern void (*fuzzcolfunc) (void); |
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| 103 | // No shadow effects on floors. |
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| 104 | extern void (*spanfunc) (void); |
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| 105 | |||
| 106 | |||
| 107 | // |
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| 108 | // Utility functions. |
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| 109 | int |
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| 110 | R_PointOnSide |
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| 111 | ( fixed_t x, |
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| 112 | fixed_t y, |
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| 113 | node_t* node ); |
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| 114 | |||
| 115 | int |
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| 116 | R_PointOnSegSide |
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| 117 | ( fixed_t x, |
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| 118 | fixed_t y, |
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| 119 | seg_t* line ); |
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| 120 | |||
| 121 | angle_t |
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| 122 | R_PointToAngle |
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| 123 | ( fixed_t x, |
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| 124 | fixed_t y ); |
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| 125 | |||
| 126 | angle_t |
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| 127 | R_PointToAngle2 |
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| 128 | ( fixed_t x1, |
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| 129 | fixed_t y1, |
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| 130 | fixed_t x2, |
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| 131 | fixed_t y2 ); |
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| 132 | |||
| 133 | fixed_t |
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| 134 | R_PointToDist |
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| 135 | ( fixed_t x, |
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| 136 | fixed_t y ); |
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| 137 | |||
| 138 | |||
| 139 | fixed_t R_ScaleFromGlobalAngle (angle_t visangle); |
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| 140 | |||
| 141 | subsector_t* |
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| 142 | R_PointInSubsector |
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| 143 | ( fixed_t x, |
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| 144 | fixed_t y ); |
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| 145 | |||
| 146 | void |
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| 147 | R_AddPointToBox |
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| 148 | ( int x, |
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| 149 | int y, |
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| 150 | fixed_t* box ); |
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| 151 | |||
| 152 | |||
| 153 | |||
| 154 | // |
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| 155 | // REFRESH - the actual rendering functions. |
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| 156 | // |
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| 157 | |||
| 158 | // Called by G_Drawer. |
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| 159 | void R_RenderPlayerView (player_t *player); |
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| 160 | |||
| 161 | // Called by startup code. |
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| 162 | void R_Init (void); |
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| 163 | |||
| 164 | // Called by M_Responder. |
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| 165 | void R_SetViewSize (int blocks, int detail); |
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| 166 | |||
| 167 | #endif |
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| 168 | //----------------------------------------------------------------------------- |
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| 169 | // |
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| 170 | // $Log:$ |
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| 171 | // |
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| 172 | //----------------------------------------------------------------------------- |