quake/QW/client/r_edgea.asm
1999-12-21 00:00:00 +00:00

699 lines
17 KiB
NASM

.386P
.model FLAT
externdef _d_zistepu:dword
externdef _d_pzbuffer:dword
externdef _d_zistepv:dword
externdef _d_zrowbytes:dword
externdef _d_ziorigin:dword
externdef _r_turb_s:dword
externdef _r_turb_t:dword
externdef _r_turb_pdest:dword
externdef _r_turb_spancount:dword
externdef _r_turb_turb:dword
externdef _r_turb_pbase:dword
externdef _r_turb_sstep:dword
externdef _r_turb_tstep:dword
externdef _r_bmodelactive:dword
externdef _d_sdivzstepu:dword
externdef _d_tdivzstepu:dword
externdef _d_sdivzstepv:dword
externdef _d_tdivzstepv:dword
externdef _d_sdivzorigin:dword
externdef _d_tdivzorigin:dword
externdef _sadjust:dword
externdef _tadjust:dword
externdef _bbextents:dword
externdef _bbextentt:dword
externdef _cacheblock:dword
externdef _d_viewbuffer:dword
externdef _cachewidth:dword
externdef _d_pzbuffer:dword
externdef _d_zrowbytes:dword
externdef _d_zwidth:dword
externdef _d_scantable:dword
externdef _r_lightptr:dword
externdef _r_numvblocks:dword
externdef _prowdestbase:dword
externdef _pbasesource:dword
externdef _r_lightwidth:dword
externdef _lightright:dword
externdef _lightrightstep:dword
externdef _lightdeltastep:dword
externdef _lightdelta:dword
externdef _lightright:dword
externdef _lightdelta:dword
externdef _sourcetstep:dword
externdef _surfrowbytes:dword
externdef _lightrightstep:dword
externdef _lightdeltastep:dword
externdef _r_sourcemax:dword
externdef _r_stepback:dword
externdef _colormap:dword
externdef _blocksize:dword
externdef _sourcesstep:dword
externdef _lightleft:dword
externdef _blockdivshift:dword
externdef _blockdivmask:dword
externdef _lightleftstep:dword
externdef _r_origin:dword
externdef _r_ppn:dword
externdef _r_pup:dword
externdef _r_pright:dword
externdef _ycenter:dword
externdef _xcenter:dword
externdef _d_vrectbottom_particle:dword
externdef _d_vrectright_particle:dword
externdef _d_vrecty:dword
externdef _d_vrectx:dword
externdef _d_pix_shift:dword
externdef _d_pix_min:dword
externdef _d_pix_max:dword
externdef _d_y_aspect_shift:dword
externdef _screenwidth:dword
externdef _vright:dword
externdef _vup:dword
externdef _vpn:dword
externdef _BOPS_Error:dword
externdef _snd_scaletable:dword
externdef _paintbuffer:dword
externdef _snd_linear_count:dword
externdef _snd_p:dword
externdef _snd_vol:dword
externdef _snd_out:dword
externdef _r_leftclipped:dword
externdef _r_leftenter:dword
externdef _r_rightclipped:dword
externdef _r_rightenter:dword
externdef _modelorg:dword
externdef _xscale:dword
externdef _r_refdef:dword
externdef _yscale:dword
externdef _r_leftexit:dword
externdef _r_rightexit:dword
externdef _r_lastvertvalid:dword
externdef _cacheoffset:dword
externdef _newedges:dword
externdef _removeedges:dword
externdef _r_pedge:dword
externdef _r_framecount:dword
externdef _r_u1:dword
externdef _r_emitted:dword
externdef _edge_p:dword
externdef _surface_p:dword
externdef _surfaces:dword
externdef _r_lzi1:dword
externdef _r_v1:dword
externdef _r_ceilv1:dword
externdef _r_nearzi:dword
externdef _r_nearzionly:dword
externdef _edge_aftertail:dword
externdef _edge_tail:dword
externdef _current_iv:dword
externdef _edge_head_u_shift20:dword
externdef _span_p:dword
externdef _edge_head:dword
externdef _fv:dword
externdef _edge_tail_u_shift20:dword
externdef _r_apverts:dword
externdef _r_anumverts:dword
externdef _aliastransform:dword
externdef _r_avertexnormals:dword
externdef _r_plightvec:dword
externdef _r_ambientlight:dword
externdef _r_shadelight:dword
externdef _aliasxcenter:dword
externdef _aliasycenter:dword
externdef _a_sstepxfrac:dword
externdef _r_affinetridesc:dword
externdef _acolormap:dword
externdef _d_pcolormap:dword
externdef _r_affinetridesc:dword
externdef _d_sfrac:dword
externdef _d_ptex:dword
externdef _d_pedgespanpackage:dword
externdef _d_tfrac:dword
externdef _d_light:dword
externdef _d_zi:dword
externdef _d_pdest:dword
externdef _d_pz:dword
externdef _d_aspancount:dword
externdef _erroradjustup:dword
externdef _errorterm:dword
externdef _d_xdenom:dword
externdef _r_p0:dword
externdef _r_p1:dword
externdef _r_p2:dword
externdef _a_tstepxfrac:dword
externdef _r_sstepx:dword
externdef _r_tstepx:dword
externdef _a_ststepxwhole:dword
externdef _zspantable:dword
externdef _skintable:dword
externdef _r_zistepx:dword
externdef _erroradjustdown:dword
externdef _d_countextrastep:dword
externdef _ubasestep:dword
externdef _a_ststepxwhole:dword
externdef _a_tstepxfrac:dword
externdef _r_lstepx:dword
externdef _a_spans:dword
externdef _erroradjustdown:dword
externdef _d_pdestextrastep:dword
externdef _d_pzextrastep:dword
externdef _d_sfracextrastep:dword
externdef _d_ptexextrastep:dword
externdef _d_countextrastep:dword
externdef _d_tfracextrastep:dword
externdef _d_lightextrastep:dword
externdef _d_ziextrastep:dword
externdef _d_pdestbasestep:dword
externdef _d_pzbasestep:dword
externdef _d_sfracbasestep:dword
externdef _d_ptexbasestep:dword
externdef _ubasestep:dword
externdef _d_tfracbasestep:dword
externdef _d_lightbasestep:dword
externdef _d_zibasestep:dword
externdef _zspantable:dword
externdef _r_lstepy:dword
externdef _r_sstepy:dword
externdef _r_tstepy:dword
externdef _r_zistepy:dword
externdef _D_PolysetSetEdgeTable:dword
externdef _D_RasterizeAliasPolySmooth:dword
externdef float_point5:dword
externdef Float2ToThe31nd:dword
externdef izistep:dword
externdef izi:dword
externdef FloatMinus2ToThe31nd:dword
externdef float_1:dword
externdef float_particle_z_clip:dword
externdef float_minus_1:dword
externdef float_0:dword
externdef fp_16:dword
externdef fp_64k:dword
externdef fp_1m:dword
externdef fp_1m_minus_1:dword
externdef fp_8:dword
externdef entryvec_table:dword
externdef advancetable:dword
externdef sstep:dword
externdef tstep:dword
externdef pspantemp:dword
externdef counttemp:dword
externdef jumptemp:dword
externdef reciprocal_table:dword
externdef DP_Count:dword
externdef DP_u:dword
externdef DP_v:dword
externdef DP_32768:dword
externdef DP_Color:dword
externdef DP_Pix:dword
externdef DP_EntryTable:dword
externdef pbase:dword
externdef s:dword
externdef t:dword
externdef sfracf:dword
externdef tfracf:dword
externdef snext:dword
externdef tnext:dword
externdef spancountminus1:dword
externdef zi16stepu:dword
externdef sdivz16stepu:dword
externdef tdivz16stepu:dword
externdef zi8stepu:dword
externdef sdivz8stepu:dword
externdef tdivz8stepu:dword
externdef reciprocal_table_16:dword
externdef entryvec_table_16:dword
externdef ceil_cw:dword
externdef single_cw:dword
externdef fp_64kx64k:dword
externdef pz:dword
externdef spr8entryvec_table:dword
_DATA SEGMENT
Ltemp dd 0
float_1_div_0100000h dd 035800000h
float_point_999 dd 0.999
float_1_point_001 dd 1.001
_DATA ENDS
_TEXT SEGMENT
public _R_EdgeCodeStart
_R_EdgeCodeStart:
public _R_InsertNewEdges
_R_InsertNewEdges:
push edi
push esi
mov edx,ds:dword ptr[4+8+esp]
push ebx
mov ecx,ds:dword ptr[8+12+esp]
LDoNextEdge:
mov eax,ds:dword ptr[0+edx]
mov edi,edx
LContinueSearch:
mov ebx,ds:dword ptr[0+ecx]
mov esi,ds:dword ptr[12+ecx]
cmp eax,ebx
jle LAddedge
mov ebx,ds:dword ptr[0+esi]
mov ecx,ds:dword ptr[12+esi]
cmp eax,ebx
jle LAddedge2
mov ebx,ds:dword ptr[0+ecx]
mov esi,ds:dword ptr[12+ecx]
cmp eax,ebx
jle LAddedge
mov ebx,ds:dword ptr[0+esi]
mov ecx,ds:dword ptr[12+esi]
cmp eax,ebx
jg LContinueSearch
LAddedge2:
mov edx,ds:dword ptr[12+edx]
mov ebx,ds:dword ptr[8+esi]
mov ds:dword ptr[12+edi],esi
mov ds:dword ptr[8+edi],ebx
mov ds:dword ptr[12+ebx],edi
mov ds:dword ptr[8+esi],edi
mov ecx,esi
cmp edx,0
jnz LDoNextEdge
jmp LDone
align 4
LAddedge:
mov edx,ds:dword ptr[12+edx]
mov ebx,ds:dword ptr[8+ecx]
mov ds:dword ptr[12+edi],ecx
mov ds:dword ptr[8+edi],ebx
mov ds:dword ptr[12+ebx],edi
mov ds:dword ptr[8+ecx],edi
cmp edx,0
jnz LDoNextEdge
LDone:
pop ebx
pop esi
pop edi
ret
public _R_RemoveEdges
_R_RemoveEdges:
push ebx
mov eax,ds:dword ptr[4+4+esp]
Lre_loop:
mov ecx,ds:dword ptr[12+eax]
mov ebx,ds:dword ptr[20+eax]
mov edx,ds:dword ptr[8+eax]
test ebx,ebx
mov ds:dword ptr[8+ecx],edx
jz Lre_done
mov ds:dword ptr[12+edx],ecx
mov ecx,ds:dword ptr[12+ebx]
mov edx,ds:dword ptr[8+ebx]
mov eax,ds:dword ptr[20+ebx]
mov ds:dword ptr[8+ecx],edx
test eax,eax
mov ds:dword ptr[12+edx],ecx
jnz Lre_loop
pop ebx
ret
Lre_done:
mov ds:dword ptr[12+edx],ecx
pop ebx
ret
public _R_StepActiveU
_R_StepActiveU:
push edi
mov edx,ds:dword ptr[4+4+esp]
push esi
push ebx
mov esi,ds:dword ptr[8+edx]
LNewEdge:
mov edi,ds:dword ptr[0+esi]
LNextEdge:
mov eax,ds:dword ptr[0+edx]
mov ebx,ds:dword ptr[4+edx]
add eax,ebx
mov esi,ds:dword ptr[12+edx]
mov ds:dword ptr[0+edx],eax
cmp eax,edi
jl LPushBack
mov edi,ds:dword ptr[0+esi]
mov ebx,ds:dword ptr[4+esi]
add edi,ebx
mov edx,ds:dword ptr[12+esi]
mov ds:dword ptr[0+esi],edi
cmp edi,eax
jl LPushBack2
mov eax,ds:dword ptr[0+edx]
mov ebx,ds:dword ptr[4+edx]
add eax,ebx
mov esi,ds:dword ptr[12+edx]
mov ds:dword ptr[0+edx],eax
cmp eax,edi
jl LPushBack
mov edi,ds:dword ptr[0+esi]
mov ebx,ds:dword ptr[4+esi]
add edi,ebx
mov edx,ds:dword ptr[12+esi]
mov ds:dword ptr[0+esi],edi
cmp edi,eax
jnl LNextEdge
LPushBack2:
mov ebx,edx
mov eax,edi
mov edx,esi
mov esi,ebx
LPushBack:
mov ecx,ds:dword ptr[8+edx]
mov ebx,ds:dword ptr[12+edx]
cmp edx,offset _edge_aftertail
jz LUDone
mov edi,ds:dword ptr[8+ecx]
mov ds:dword ptr[8+esi],ecx
mov ds:dword ptr[12+ecx],ebx
LPushBackLoop:
mov ecx,ds:dword ptr[8+edi]
mov ebx,ds:dword ptr[0+edi]
cmp eax,ebx
jnl LPushBackFound
mov edi,ds:dword ptr[8+ecx]
mov ebx,ds:dword ptr[0+ecx]
cmp eax,ebx
jl LPushBackLoop
mov edi,ecx
LPushBackFound:
mov ebx,ds:dword ptr[12+edi]
mov ds:dword ptr[8+edx],edi
mov ds:dword ptr[12+edx],ebx
mov ds:dword ptr[12+edi],edx
mov ds:dword ptr[8+ebx],edx
mov edx,esi
mov esi,ds:dword ptr[8+esi]
cmp edx,offset _edge_tail
jnz LNewEdge
LUDone:
pop ebx
pop esi
pop edi
ret
align 4
TrailingEdge:
mov eax,ds:dword ptr[20+esi]
dec eax
jnz LInverted
mov ds:dword ptr[20+esi],eax
mov ecx,ds:dword ptr[40+esi]
mov edx,ds:dword ptr[12345678h]
LPatch0:
mov eax,ds:dword ptr[_r_bmodelactive]
sub eax,ecx
cmp edx,esi
mov ds:dword ptr[_r_bmodelactive],eax
jnz LNoEmit
mov eax,ds:dword ptr[0+ebx]
shr eax,20
mov edx,ds:dword ptr[16+esi]
mov ecx,ds:dword ptr[0+esi]
cmp eax,edx
jle LNoEmit2
mov ds:dword ptr[16+ecx],eax
sub eax,edx
mov ds:dword ptr[0+ebp],edx
mov ds:dword ptr[8+ebp],eax
mov eax,ds:dword ptr[_current_iv]
mov ds:dword ptr[4+ebp],eax
mov eax,ds:dword ptr[8+esi]
mov ds:dword ptr[12+ebp],eax
mov ds:dword ptr[8+esi],ebp
add ebp,16
mov edx,ds:dword ptr[0+esi]
mov esi,ds:dword ptr[4+esi]
mov ds:dword ptr[0+esi],edx
mov ds:dword ptr[4+edx],esi
ret
LNoEmit2:
mov ds:dword ptr[16+ecx],eax
mov edx,ds:dword ptr[0+esi]
mov esi,ds:dword ptr[4+esi]
mov ds:dword ptr[0+esi],edx
mov ds:dword ptr[4+edx],esi
ret
LNoEmit:
mov edx,ds:dword ptr[0+esi]
mov esi,ds:dword ptr[4+esi]
mov ds:dword ptr[0+esi],edx
mov ds:dword ptr[4+edx],esi
ret
LInverted:
mov ds:dword ptr[20+esi],eax
ret
Lgs_trailing:
push offset Lgs_nextedge
jmp TrailingEdge
public _R_GenerateSpans
_R_GenerateSpans:
push ebp
push edi
push esi
push ebx
mov eax,ds:dword ptr[_surfaces]
mov edx,ds:dword ptr[_edge_head_u_shift20]
add eax,64
mov ebp,ds:dword ptr[_span_p]
mov ds:dword ptr[_r_bmodelactive],0
mov ds:dword ptr[0+eax],eax
mov ds:dword ptr[4+eax],eax
mov ds:dword ptr[16+eax],edx
mov ebx,ds:dword ptr[_edge_head+12]
cmp ebx,offset _edge_tail
jz Lgs_lastspan
Lgs_edgeloop:
mov edi,ds:dword ptr[16+ebx]
mov eax,ds:dword ptr[_surfaces]
mov esi,edi
and edi,0FFFF0000h
and esi,0FFFFh
jz Lgs_leading
shl esi,6
add esi,eax
test edi,edi
jz Lgs_trailing
call near ptr TrailingEdge
mov eax,ds:dword ptr[_surfaces]
Lgs_leading:
shr edi,16-6
mov eax,ds:dword ptr[_surfaces]
add edi,eax
mov esi,ds:dword ptr[12345678h]
LPatch2:
mov edx,ds:dword ptr[20+edi]
mov eax,ds:dword ptr[40+edi]
test eax,eax
jnz Lbmodel_leading
test edx,edx
jnz Lxl_done
inc edx
mov eax,ds:dword ptr[12+edi]
mov ds:dword ptr[20+edi],edx
mov ecx,ds:dword ptr[12+esi]
cmp eax,ecx
jl Lnewtop
Lsortloopnb:
mov esi,ds:dword ptr[0+esi]
mov ecx,ds:dword ptr[12+esi]
cmp eax,ecx
jge Lsortloopnb
jmp LInsertAndExit
align 4
Lbmodel_leading:
test edx,edx
jnz Lxl_done
mov ecx,ds:dword ptr[_r_bmodelactive]
inc edx
inc ecx
mov ds:dword ptr[20+edi],edx
mov ds:dword ptr[_r_bmodelactive],ecx
mov eax,ds:dword ptr[12+edi]
mov ecx,ds:dword ptr[12+esi]
cmp eax,ecx
jl Lnewtop
jz Lzcheck_for_newtop
Lsortloop:
mov esi,ds:dword ptr[0+esi]
mov ecx,ds:dword ptr[12+esi]
cmp eax,ecx
jg Lsortloop
jne LInsertAndExit
mov eax,ds:dword ptr[0+ebx]
sub eax,0FFFFFh
mov ds:dword ptr[Ltemp],eax
fild ds:dword ptr[Ltemp]
fmul ds:dword ptr[float_1_div_0100000h]
fld st(0)
fmul ds:dword ptr[48+edi]
fld ds:dword ptr[_fv]
fmul ds:dword ptr[52+edi]
fxch st(1)
fadd ds:dword ptr[44+edi]
fld ds:dword ptr[48+esi]
fmul st(0),st(3)
fxch st(1)
faddp st(2),st(0)
fld ds:dword ptr[_fv]
fmul ds:dword ptr[52+esi]
fld st(2)
fmul ds:dword ptr[float_point_999]
fxch st(2)
fadd ds:dword ptr[44+esi]
faddp st(1),st(0)
fxch st(1)
fcomp st(1)
fxch st(1)
fmul ds:dword ptr[float_1_point_001]
fxch st(1)
fnstsw ax
test ah,001h
jz Lgotposition_fpop3
fcomp st(1)
fnstsw ax
test ah,045h
jz Lsortloop_fpop2
fld ds:dword ptr[48+edi]
fcomp ds:dword ptr[48+esi]
fnstsw ax
test ah,001h
jz Lgotposition_fpop2
fstp st(0)
fstp st(0)
mov eax,ds:dword ptr[12+edi]
jmp Lsortloop
Lgotposition_fpop3:
fstp st(0)
Lgotposition_fpop2:
fstp st(0)
fstp st(0)
jmp LInsertAndExit
Lnewtop_fpop3:
fstp st(0)
Lnewtop_fpop2:
fstp st(0)
fstp st(0)
mov eax,ds:dword ptr[12+edi]
Lnewtop:
mov eax,ds:dword ptr[0+ebx]
mov edx,ds:dword ptr[16+esi]
shr eax,20
mov ds:dword ptr[16+edi],eax
cmp eax,edx
jle LInsertAndExit
sub eax,edx
mov ds:dword ptr[0+ebp],edx
mov ds:dword ptr[8+ebp],eax
mov eax,ds:dword ptr[_current_iv]
mov ds:dword ptr[4+ebp],eax
mov eax,ds:dword ptr[8+esi]
mov ds:dword ptr[12+ebp],eax
mov ds:dword ptr[8+esi],ebp
add ebp,16
LInsertAndExit:
mov ds:dword ptr[0+edi],esi
mov eax,ds:dword ptr[4+esi]
mov ds:dword ptr[4+edi],eax
mov ds:dword ptr[4+esi],edi
mov ds:dword ptr[0+eax],edi
Lgs_nextedge:
mov ebx,ds:dword ptr[12+ebx]
cmp ebx,offset _edge_tail
jnz Lgs_edgeloop
Lgs_lastspan:
mov esi,ds:dword ptr[12345678h]
LPatch3:
mov eax,ds:dword ptr[_edge_tail_u_shift20]
xor ecx,ecx
mov edx,ds:dword ptr[16+esi]
sub eax,edx
jle Lgs_resetspanstate
mov ds:dword ptr[0+ebp],edx
mov ds:dword ptr[8+ebp],eax
mov eax,ds:dword ptr[_current_iv]
mov ds:dword ptr[4+ebp],eax
mov eax,ds:dword ptr[8+esi]
mov ds:dword ptr[12+ebp],eax
mov ds:dword ptr[8+esi],ebp
add ebp,16
Lgs_resetspanstate:
mov ds:dword ptr[20+esi],ecx
mov esi,ds:dword ptr[0+esi]
cmp esi,012345678h
LPatch4:
jnz Lgs_resetspanstate
mov ds:dword ptr[_span_p],ebp
pop ebx
pop esi
pop edi
pop ebp
ret
align 4
Lxl_done:
inc edx
mov ds:dword ptr[20+edi],edx
jmp Lgs_nextedge
align 4
Lzcheck_for_newtop:
mov eax,ds:dword ptr[0+ebx]
sub eax,0FFFFFh
mov ds:dword ptr[Ltemp],eax
fild ds:dword ptr[Ltemp]
fmul ds:dword ptr[float_1_div_0100000h]
fld st(0)
fmul ds:dword ptr[48+edi]
fld ds:dword ptr[_fv]
fmul ds:dword ptr[52+edi]
fxch st(1)
fadd ds:dword ptr[44+edi]
fld ds:dword ptr[48+esi]
fmul st(0),st(3)
fxch st(1)
faddp st(2),st(0)
fld ds:dword ptr[_fv]
fmul ds:dword ptr[52+esi]
fld st(2)
fmul ds:dword ptr[float_point_999]
fxch st(2)
fadd ds:dword ptr[44+esi]
faddp st(1),st(0)
fxch st(1)
fcomp st(1)
fxch st(1)
fmul ds:dword ptr[float_1_point_001]
fxch st(1)
fnstsw ax
test ah,001h
jz Lnewtop_fpop3
fcomp st(1)
fnstsw ax
test ah,045h
jz Lsortloop_fpop2
fld ds:dword ptr[48+edi]
fcomp ds:dword ptr[48+esi]
fnstsw ax
test ah,001h
jz Lnewtop_fpop2
Lsortloop_fpop2:
fstp st(0)
fstp st(0)
mov eax,ds:dword ptr[12+edi]
jmp Lsortloop
public _R_EdgeCodeEnd
_R_EdgeCodeEnd:
align 4
public _R_SurfacePatch
_R_SurfacePatch:
mov eax,ds:dword ptr[_surfaces]
add eax,64
mov ds:dword ptr[LPatch4-4],eax
add eax,0
mov ds:dword ptr[LPatch0-4],eax
mov ds:dword ptr[LPatch2-4],eax
mov ds:dword ptr[LPatch3-4],eax
ret
_TEXT ENDS
END