asm_draw.h

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//
// asm_draw.h
//
// Include file for asm drawing routines.
//
 
//
// !!! note that this file must match the corresponding C structures at all
// times !!!
//
 
// !!! if this is changed, it must be changed in r_local.h too !!!
#define NEAR_CLIP   0.01
 
// !!! if this is changed, it must be changed in r_local.h too !!!
#define CYCLE   128
 
// espan_t structure
// !!! if this is changed, it must be changed in r_shared.h too !!!
#define espan_t_u       0
#define espan_t_v       4
#define espan_t_count   8
#define espan_t_pnext   12
#define espan_t_size    16
 
// sspan_t structure
// !!! if this is changed, it must be changed in d_local.h too !!!
#define sspan_t_u       0
#define sspan_t_v       4
#define sspan_t_count   8
#define sspan_t_pnext   12
#define sspan_t_size    16
 
// edge_t structure
// !!! if this is changed, it must be changed in r_shared.h too !!!
#define et_u            0
#define et_u_step       4
#define et_prev         8
#define et_next         12
#define et_surfs        16
#define et_nextremove   20
#define et_nearzi       24
#define et_owner        28
#define et_size         32
 
// surf_t structure
// !!! if this is changed, it must be changed in r_shared.h too !!!
#define SURF_T_SHIFT    6
#define st_next         0
#define st_prev         4
#define st_spans        8
#define st_key          12
#define st_last_u       16
#define st_spanstate    20
#define st_flags        24
#define st_data         28
#define st_entity       32
#define st_nearzi       36
#define st_insubmodel   40
#define st_d_ziorigin   44
#define st_d_zistepu    48
#define st_d_zistepv    52
#define st_pad          56
#define st_size         64
 
// clipplane_t structure
// !!! if this is changed, it must be changed in r_local.h too !!!
#define cp_normal       0
#define cp_dist         12
#define cp_next         16
#define cp_leftedge     20
#define cp_rightedge    21
#define cp_reserved     22
#define cp_size         24
 
// medge_t structure
// !!! if this is changed, it must be changed in model.h too !!!
#define me_v                0
#define me_cachededgeoffset 4
#define me_size             8
 
// mvertex_t structure
// !!! if this is changed, it must be changed in model.h too !!!
#define mv_position     0
#define mv_size         12
 
// refdef_t structure
// !!! if this is changed, it must be changed in render.h too !!!
#define rd_vrect                    0
#define rd_aliasvrect               20
#define rd_vrectright               40
#define rd_vrectbottom              44
#define rd_aliasvrectright          48
#define rd_aliasvrectbottom         52
#define rd_vrectrightedge           56
#define rd_fvrectx                  60
#define rd_fvrecty                  64
#define rd_fvrectx_adj              68
#define rd_fvrecty_adj              72
#define rd_vrect_x_adj_shift20      76
#define rd_vrectright_adj_shift20   80
#define rd_fvrectright_adj          84
#define rd_fvrectbottom_adj         88
#define rd_fvrectright              92
#define rd_fvrectbottom             96
#define rd_horizontalFieldOfView    100
#define rd_xOrigin                  104
#define rd_yOrigin                  108
#define rd_vieworg                  112
#define rd_viewangles               124
#define rd_ambientlight             136
#define rd_size                     140
 
// mtriangle_t structure
// !!! if this is changed, it must be changed in model.h too !!!
#define mtri_facesfront     0
#define mtri_vertindex      4
#define mtri_size           16  // !!! if this changes, array indexing in !!!
                                // !!! d_polysa.s must be changed to match !!!
#define mtri_shift          4