mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-10 15:22:04 +00:00
39103cc8a3
I'm not sure that the mismatch between refdef_t and the assembly defines was a problem (many fields unused), but the main problem was due to execute permission on the pages: one chunk of asm was in the data section, and the patched code was not marked as being executable (due to such a thing not existing when quake was written).
155 lines
4.4 KiB
C
155 lines
4.4 KiB
C
/*
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asm_draw.h
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Assembler drawing routines.
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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//
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// !!! note that this file must match the corresponding C structures at all
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// times !!!
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//
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// !!! if this is changed, it must be changed in r_local.h too !!!
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#define NEAR_CLIP 0.01
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// !!! if this is changed, it must be changed in r_local.h too !!!
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#define CYCLE 128
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// espan_t structure
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// !!! if this is changed, it must be changed in r_shared.h too !!!
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#define espan_t_u 0
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#define espan_t_v 4
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#define espan_t_count 8
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#define espan_t_pnext 12
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#define espan_t_size 16 // sizeof(espan_t)
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// sspan_t structure
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// !!! if this is changed, it must be changed in d_local.h too !!!
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#define sspan_t_u 0
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#define sspan_t_v 4
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#define sspan_t_count 8
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#define sspan_t_size 12 // sizeof(sspan_t)
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// spanpackage_t structure
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// !!! if this is changed, it must be changed in d_polyset.c too !!!
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#define spanpackage_t_pdest 0
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#define spanpackage_t_pz 4
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#define spanpackage_t_count 8
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#define spanpackage_t_ptex 12
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#define spanpackage_t_sfrac 16
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#define spanpackage_t_tfrac 20
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#define spanpackage_t_light 24
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#define spanpackage_t_zi 28
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#define spanpackage_t_size 32 // sizeof(spanpackage_t)
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// edge_t structure
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// !!! if this is changed, it must be changed in r_shared.h too !!!
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#define et_u 0
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#define et_u_step 4
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#define et_prev 8
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#define et_next 12
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#define et_surfs 16
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#define et_nextremove 20
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#define et_nearzi 24
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#define et_owner 28
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#define et_size 32 // sizeof(edge_t)
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// surf_t structure
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// !!! if this is changed, it must be changed in r_shared.h too !!!
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#define SURF_T_SHIFT 6
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#define st_next 0
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#define st_prev 4
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#define st_spans 8
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#define st_key 12
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#define st_last_u 16
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#define st_spanstate 20
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#define st_flags 24
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#define st_data 28
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#define st_entity 32
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#define st_nearzi 36
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#define st_insubmodel 40
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#define st_d_ziorigin 44
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#define st_d_zistepu 48
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#define st_d_zistepv 52
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#define st_pad 56
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#define st_size 64 // sizeof (surf_t)
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// clipplane_t structure
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// !!! if this is changed, it must be changed in r_local.h too !!!
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#define cp_normal 0
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#define cp_dist 12
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#define cp_next 16
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#define cp_leftedge 20
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#define cp_rightedge 21
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#define cp_reserved 22
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#define cp_size 24 // sizeof (clipplane_t)
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// medge_t structure
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// !!! if this is changed, it must be changed in model.h too !!!
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#define me_v 0
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#define me_cachededgeoffset 8
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#define me_size 12 // sizeof (medge_t)
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// mvertex_t structure
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// !!! if this is changed, it must be changed in model.h too !!!
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#define mv_position 0
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#define mv_size 12 // sizeof (mvertex_t)
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// refdef_t structure
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// !!! if this is changed, it must be changed in render.h too !!!
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#define rd_vrect 0
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#define rd_aliasvrect 20
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#define rd_vrectright 40
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#define rd_vrectbottom 44
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#define rd_aliasvrectright 48
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#define rd_aliasvrectbottom 52
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#define rd_vrectrightedge 56
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#define rd_fvrectx 60
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#define rd_fvrecty 64
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#define rd_fvrectx_adj 68
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#define rd_fvrecty_adj 72
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#define rd_vrect_x_adj_shift20 76
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#define rd_vrectright_adj_shift20 80
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#define rd_fvrectright_adj 84
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#define rd_fvrectbottom_adj 88
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#define rd_fvrectright 92
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#define rd_fvrectbottom 96
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#define rd_horizontalFieldOfView 100
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#define rd_xOrigin 104
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#define rd_yOrigin 108
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#define rd_viewposition 112
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#define rd_viewrotation 128
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#define rd_ambientlight 144
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#defin rd_fov_x 148
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#defin rd_fov_y 152
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#define rd_size 156 // sizeof (refdef_t)
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// mtriangle_t structure
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// !!! if this is changed, it must be changed in model.h too !!!
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#define mtri_facesfront 0
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#define mtri_vertindex 4
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#define mtri_size 16 // !!! if this changes, array indexing in !!!
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// !!! d_polysa.s must be changed to match !!!
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#define mtri_shift 4
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