1/* 2Copyright (C) 1996-1997 Id Software, Inc. 3 4This program is free software; you can redistribute it and/or 5modify it under the terms of the GNU General Public License 6as published by the Free Software Foundation; either version 2 7of the License, or (at your option) any later version. 8 9This program is distributed in the hope that it will be useful, 10but WITHOUT ANY WARRANTY; without even the implied warranty of 11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 13See the GNU General Public License for more details. 14 15You should have received a copy of the GNU General Public License 16along with this program; if not, write to the Free Software 17Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 19*/ 20// 21// asm_draw.h 22// 23// Include file for asm drawing routines. 24// 25 26// 27// !!! note that this file must match the corresponding C structures at all 28// times !!! 29// 30 31// !!! if this is changed, it must be changed in r_local.h too !!! 32#define NEAR_CLIP 0.01 33 34// !!! if this is changed, it must be changed in r_local.h too !!! 35#define CYCLE 128 36 37// espan_t structure 38// !!! if this is changed, it must be changed in r_shared.h too !!! 39#define espan_t_u 0 40#define espan_t_v 4 41#define espan_t_count 8 42#define espan_t_pnext 12 43#define espan_t_size 16 44 45// sspan_t structure 46// !!! if this is changed, it must be changed in d_local.h too !!! 47#define sspan_t_u 0 48#define sspan_t_v 4 49#define sspan_t_count 8 50#define sspan_t_size 12 51 52// spanpackage_t structure 53// !!! if this is changed, it must be changed in d_polyset.c too !!! 54#define spanpackage_t_pdest 0 55#define spanpackage_t_pz 4 56#define spanpackage_t_count 8 57#define spanpackage_t_ptex 12 58#define spanpackage_t_sfrac 16 59#define spanpackage_t_tfrac 20 60#define spanpackage_t_light 24 61#define spanpackage_t_zi 28 62#define spanpackage_t_size 32 63 64// edge_t structure 65// !!! if this is changed, it must be changed in r_shared.h too !!! 66#define et_u 0 67#define et_u_step 4 68#define et_prev 8 69#define et_next 12 70#define et_surfs 16 71#define et_nextremove 20 72#define et_nearzi 24 73#define et_owner 28 74#define et_size 32 75 76// surf_t structure 77// !!! if this is changed, it must be changed in r_shared.h too !!! 78#define SURF_T_SHIFT 6 79#define st_next 0 80#define st_prev 4 81#define st_spans 8 82#define st_key 12 83#define st_last_u 16 84#define st_spanstate 20 85#define st_flags 24 86#define st_data 28 87#define st_entity 32 88#define st_nearzi 36 89#define st_insubmodel 40 90#define st_d_ziorigin 44 91#define st_d_zistepu 48 92#define st_d_zistepv 52 93#define st_pad 56 94#define st_size 64 95 96// clipplane_t structure 97// !!! if this is changed, it must be changed in r_local.h too !!! 98#define cp_normal 0 99#define cp_dist 12 100#define cp_next 16 101#define cp_leftedge 20 102#define cp_rightedge 21 103#define cp_reserved 22 104#define cp_size 24 105 106// medge_t structure 107// !!! if this is changed, it must be changed in model.h too !!! 108#define me_v 0 109#define me_cachededgeoffset 4 110#define me_size 8 111 112// mvertex_t structure 113// !!! if this is changed, it must be changed in model.h too !!! 114#define mv_position 0 115#define mv_size 12 116 117// refdef_t structure 118// !!! if this is changed, it must be changed in render.h too !!! 119#define rd_vrect 0 120#define rd_aliasvrect 20 121#define rd_vrectright 40 122#define rd_vrectbottom 44 123#define rd_aliasvrectright 48 124#define rd_aliasvrectbottom 52 125#define rd_vrectrightedge 56 126#define rd_fvrectx 60 127#define rd_fvrecty 64 128#define rd_fvrectx_adj 68 129#define rd_fvrecty_adj 72 130#define rd_vrect_x_adj_shift20 76 131#define rd_vrectright_adj_shift20 80 132#define rd_fvrectright_adj 84 133#define rd_fvrectbottom_adj 88 134#define rd_fvrectright 92 135#define rd_fvrectbottom 96 136#define rd_horizontalFieldOfView 100 137#define rd_xOrigin 104 138#define rd_yOrigin 108 139#define rd_vieworg 112 140#define rd_viewangles 124 141#define rd_ambientlight 136 142#define rd_size 140 143 144// mtriangle_t structure 145// !!! if this is changed, it must be changed in model.h too !!! 146#define mtri_facesfront 0 147#define mtri_vertindex 4 148#define mtri_size 16 // !!! if this changes, array indexing in !!! 149 // !!! d_polysa.s must be changed to match !!! 150#define mtri_shift 4 151 152