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## THIS SOFTWARE IS SUBJECT TO COPYRIGHT PROTECTION AND IS OFFERED ONLY
## PURSUANT TO THE 3DFX GLIDE GENERAL PUBLIC LICENSE. THERE IS NO RIGHT
## TO USE THE GLIDE TRADEMARK WITHOUT PRIOR WRITTEN PERMISSION OF 3DFX
## INTERACTIVE, INC. A COPY OF THIS LICENSE MAY BE OBTAINED FROM THE
## DISTRIBUTOR OR BY CONTACTING 3DFX INTERACTIVE INC(info@3dfx.com).
## THIS PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
## EXPRESSED OR IMPLIED. SEE THE 3DFX GLIDE GENERAL PUBLIC LICENSE FOR A
## FULL TEXT OF THE NON-WARRANTY PROVISIONS.
##
## USE, DUPLICATION OR DISCLOSURE BY THE GOVERNMENT IS SUBJECT TO
## RESTRICTIONS AS SET FORTH IN SUBDIVISION (C)(1)(II) OF THE RIGHTS IN
## TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 252.227-7013,
## AND/OR IN SIMILAR OR SUCCESSOR CLAUSES IN THE FAR, DOD OR NASA FAR
## SUPPLEMENT. UNPUBLISHED RIGHTS RESERVED UNDER THE COPYRIGHT LAWS OF
## THE UNITED STATES.
##
## COPYRIGHT 3DFX INTERACTIVE, INC. 1999, ALL RIGHTS RESERVED
##
## $Header: /cvsroot/glide/glide2x/cvg/glide/src/xdraw2.S,v 1.1 2000/01/06 20:35:11 joseph Exp $
## $Revision: 1.1 $
## $Log: xdraw2.S,v $
## Revision 1.1 2000/01/06 20:35:11 joseph
## Changes to support building against shared swlibs.
##
## Revision 1.2 1999/12/11 00:42:21 joseph
## Changed \(.data) to .section .data to fix build errors with binutils 2.9.5.
##
## Revision 1.1.1.1 1999/12/07 21:49:13 joseph
## Initial checkin into SourceForge.
##
##
##
## 7 5/18/98 12:16p Peter
## culling enabling
#
# 6 1/15/98 1:12p Peter
# dispatch w/o packing
#
# 5 11/06/97 3:47p Peter
#
# 4 11/04/97 5:04p Peter
# cataclysm part deux
#
# 3 11/01/97 10:01a Peter
# tri dispatch stuff
#
# 2 10/30/97 6:53p Peter
# first real cut at tri asm
#
# 1 10/30/97 4:29p Peter
# asm tri code
#
# 2 7/07/97 2:14p Jdt
# assembly now on par with C code.
#
# 1 7/07/97 8:37a Jdt
# B4 Chip field fix.
##
.file "xdraw2.s"
.section .note.GNU-stack, "", @progbits
.previous
#OPTION OLDSTRUCTS
# 586P
# This was xdraw2.s but I renamed it for now to work with the shared
# swlibs. It hasn't changed to the format used in the .S files for
# the Voodoo3 Glide soruces.
# some useful floating load and store macros <ala gmt>
#flds TEXTEQU <fld DWORD PTR>
#fsubs TEXTEQU <fsub DWORD PTR>
#fmuls TEXTEQU <fmul DWORD PTR>
.align 4
.section .data
One .DATA 0x03f800000
Area .DATA 0
dxAB .DATA 0
dxBC .DATA 0
dyAB .DATA 0
dyBC .DATA 0
culltest .DATA 0
## Extra junk to pad out to the next cache line.
bias0 .DATA 0
pad1 .DATA 0
pad2 .DATA 0
pad3 .DATA 0
pad4 .DATA 0
pad5 .DATA 0
pad6 .DATA 0
pad7 .DATA 0
bias1 .DATA 0
# _DATA ENDS
# Ugly, but seems to workaround the problem with locally defined
# data segment globals not getting relocated properly when using
# djgpp.
zArea .EQU One+0x04
zdxAB .EQU One+0x08
zdxBC .EQU One+0x0c
zdyAB .EQU One+0x10
zdyBC .EQU One+0x14
zculltest .EQU One+0x18
### Definitions of cvg regs and glide root structures.
.INCLUDE "fxgasm.h"
## enables/disables trisProcessed and trisDrawn counters
STATS .ASSIGNA 1
#--------------------------------------------------------------------------
# Arguments : STKOFF = 16 from 4 pushes
#.AIF \&GLIDE_DEBUG EQ 1
#STKOFF .EQU 20
#.AELSE
STKOFF .EQU 16
#.AENDI
_va$ .EQU 4 + STKOFF
_vb$ .EQU 8 + STKOFF
_vc$ .EQU 12 + STKOFF
X .EQU 0
Y .EQU 4
# edx is used as index, loading from *src
gc .REG (%esi) # points to graphics context
.text
.align 4
.globl _trisetup_cull
.type _trisetup_cull, @function
_trisetup_cull:
# .code
.MACRO SYMNAME prefix
.LCULL\prefix:
.ENDM
.MACRO SYMNAMEOP op prefix
\op .LCULL\prefix
.ENDM
GLIDE_CULLING .ASSIGNA 1
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_GENERIC_SETUP .ASSIGNA 0
.INCLUDE "xdraw2.inc.S"
GLIDE_GENERIC_SETUP .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_CULLING .ASSIGNA 0
.L_end_trisetup_cull:
.size _trisetup_cull,.L_end_trisetup_cull-_trisetup_cull
.MACRO SYMNAME prefix
.LNOCULL\prefix:
.ENDM
.MACRO SYMNAMEOP op prefix
\op .LNOCULL\prefix
.ENDM
.AIF \&GLIDE_PACKED_RGB EQ 1
.align 4
.globl _trisetup_cull_rgb
.type _trisetup_cull_rgb, @function
_trisetup_cull_rgb:
# .code
GLIDE_CULLING .ASSIGNA 1
GLIDE_PACK_RGB .ASSIGNA 1
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_GENERIC_SETUP .ASSIGNA 0
.INCLUDE "xdraw2.inc.S"
GLIDE_GENERIC_SETUP .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_CULLING .ASSIGNA 0
.L_end_trisetup_cull_rgb:
.size _trisetup_cull_rgb,.L_end_trisetup_cull_rgb-_trisetup_cull_rgb
.align 4
.globl _trisetup_cull_argb
.type _trisetup_cull_argb, @function
_trisetup_cull_argb:
# .code
GLIDE_CULLING .ASSIGNA 1
GLIDE_PACK_RGB .ASSIGNA 1
GLIDE_PACK_ALPHA .ASSIGNA 1
GLIDE_GENERIC_SETUP .ASSIGNA 0
.INCLUDE "xdraw2.inc.S"
GLIDE_GENERIC_SETUP .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_CULLING .ASSIGNA 0
.L_end_trisetup_cull_argb:
.size _trisetup_cull_argb,.L_end_trisetup_cull_argb-_trisetup_cull_argb
.AENDI
.align 4
.global _trisetup
.type _trisetup, @function
_trisetup:
# .code
GLIDE_CULLING .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_GENERIC_SETUP .ASSIGNA 0
.INCLUDE "xdraw2.inc.S"
GLIDE_GENERIC_SETUP .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_CULLING .ASSIGNA 0
.L_end_trisetup:
.size _trisetup,.L_end_trisetup-_trisetup
.AIF \&GLIDE_PACKED_RGB EQ 1
.align 4
.globl _trisetup_rgb
.type _trisetup_rgb, @function
_trisetup_rgb:
# .code
GLIDE_CULLING .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 1
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_GENERIC_SETUP .ASSIGNA 0
.INCLUDE "xdraw2.inc.S"
GLIDE_GENERIC_SETUP .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_CULLING .ASSIGNA 0
.L_end_trisetup_rgb:
.size _trisetup_rgb,.L_end_trisetup_rgb-_trisetup_rgb
.align 4
.globl _trisetup_argb
.type _trisetup_argb, @function
_trisetup_argb:
# .code
GLIDE_CULLING .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 1
GLIDE_PACK_ALPHA .ASSIGNA 1
GLIDE_GENERIC_SETUP .ASSIGNA 0
INCLUDE xdraw2.inc
GLIDE_GENERIC_SETUP .ASSIGNA 0
GLIDE_PACK_ALPHA .ASSIGNA 0
GLIDE_PACK_RGB .ASSIGNA 0
GLIDE_CULLING .ASSIGNA 0
.L_end_trisetup_argb:
.size _trisetup_argb,.L_end_trisetup_argb-_trisetup_argb
.AENDI
#_TEXT ENDS
.END
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