quakeforge-old/common/asm_draw.h

/*
	asm_draw.h

	asm drawing routines

	Copyright (C) 1996-1997  Id Software, Inc.
	Copyright (C) 1999,2000  contributors of the QuakeForge project
	Please see the file "AUTHORS" for a list of contributors

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	See the GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

//
// !!! 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_size		12

// spanpackage_t structure
// !!! if this is changed, it must be changed in d_polyset.c too !!!
#define spanpackage_t_pdest				0
#define spanpackage_t_pz				4
#define spanpackage_t_count				8
#define spanpackage_t_ptex				12
#define spanpackage_t_sfrac				16
#define spanpackage_t_tfrac				20
#define spanpackage_t_light				24
#define spanpackage_t_zi				28
#define spanpackage_t_size				32

// 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