diff options
Diffstat (limited to 'QW/client/d_draw.asm')
| -rw-r--r-- | QW/client/d_draw.asm | 949 |
1 files changed, 949 insertions, 0 deletions
diff --git a/QW/client/d_draw.asm b/QW/client/d_draw.asm new file mode 100644 index 0000000..5f6d995 --- /dev/null +++ b/QW/client/d_draw.asm @@ -0,0 +1,949 @@ + .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 +_TEXT SEGMENT +LClampHigh0: + mov esi,ds:dword ptr[_bbextents] + jmp LClampReentry0 +LClampHighOrLow0: + jg LClampHigh0 + xor esi,esi + jmp LClampReentry0 +LClampHigh1: + mov edx,ds:dword ptr[_bbextentt] + jmp LClampReentry1 +LClampHighOrLow1: + jg LClampHigh1 + xor edx,edx + jmp LClampReentry1 +LClampLow2: + mov ebp,2048 + jmp LClampReentry2 +LClampHigh2: + mov ebp,ds:dword ptr[_bbextents] + jmp LClampReentry2 +LClampLow3: + mov ecx,2048 + jmp LClampReentry3 +LClampHigh3: + mov ecx,ds:dword ptr[_bbextentt] + jmp LClampReentry3 +LClampLow4: + mov eax,2048 + jmp LClampReentry4 +LClampHigh4: + mov eax,ds:dword ptr[_bbextents] + jmp LClampReentry4 +LClampLow5: + mov ebx,2048 + jmp LClampReentry5 +LClampHigh5: + mov ebx,ds:dword ptr[_bbextentt] + jmp LClampReentry5 + align 4 + public _D_DrawSpans8 +_D_DrawSpans8: + push ebp + push edi + push esi + push ebx + fld ds:dword ptr[_d_sdivzstepu] + fmul ds:dword ptr[fp_8] + mov edx,ds:dword ptr[_cacheblock] + fld ds:dword ptr[_d_tdivzstepu] + fmul ds:dword ptr[fp_8] + mov ebx,ds:dword ptr[4+16+esp] + fld ds:dword ptr[_d_zistepu] + fmul ds:dword ptr[fp_8] + mov ds:dword ptr[pbase],edx + fstp ds:dword ptr[zi8stepu] + fstp ds:dword ptr[tdivz8stepu] + fstp ds:dword ptr[sdivz8stepu] +LSpanLoop: + fild ds:dword ptr[4+ebx] + fild ds:dword ptr[0+ebx] + fld st(1) + fmul ds:dword ptr[_d_sdivzstepv] + fld st(1) + fmul ds:dword ptr[_d_sdivzstepu] + fld st(2) + fmul ds:dword ptr[_d_tdivzstepu] + fxch st(1) + faddp st(2),st(0) + fxch st(1) + fld st(3) + fmul ds:dword ptr[_d_tdivzstepv] + fxch st(1) + fadd ds:dword ptr[_d_sdivzorigin] + fxch st(4) + fmul ds:dword ptr[_d_zistepv] + fxch st(1) + faddp st(2),st(0) + fxch st(2) + fmul ds:dword ptr[_d_zistepu] + fxch st(1) + fadd ds:dword ptr[_d_tdivzorigin] + fxch st(2) + faddp st(1),st(0) + fld ds:dword ptr[fp_64k] + fxch st(1) + fadd ds:dword ptr[_d_ziorigin] + fdiv st(1),st(0) + mov ecx,ds:dword ptr[_d_viewbuffer] + mov eax,ds:dword ptr[4+ebx] + mov ds:dword ptr[pspantemp],ebx + mov edx,ds:dword ptr[_tadjust] + mov esi,ds:dword ptr[_sadjust] + mov edi,ds:dword ptr[_d_scantable+eax*4] + add edi,ecx + mov ecx,ds:dword ptr[0+ebx] + add edi,ecx + mov ecx,ds:dword ptr[8+ebx] + cmp ecx,8 + ja LSetupNotLast1 + dec ecx + jz LCleanup1 + mov ds:dword ptr[spancountminus1],ecx + fxch st(1) + fld st(0) + fmul st(0),st(4) + fxch st(1) + fmul st(0),st(3) + fxch st(1) + fistp ds:dword ptr[s] + fistp ds:dword ptr[t] + fild ds:dword ptr[spancountminus1] + fld ds:dword ptr[_d_tdivzstepu] + fld ds:dword ptr[_d_zistepu] + fmul st(0),st(2) + fxch st(1) + fmul st(0),st(2) + fxch st(2) + fmul ds:dword ptr[_d_sdivzstepu] + fxch st(1) + faddp st(3),st(0) + fxch st(1) + faddp st(3),st(0) + faddp st(3),st(0) + fld ds:dword ptr[fp_64k] + fdiv st(0),st(1) + jmp LFDIVInFlight1 +LCleanup1: + fxch st(1) + fld st(0) + fmul st(0),st(4) + fxch st(1) + fmul st(0),st(3) + fxch st(1) + fistp ds:dword ptr[s] + fistp ds:dword ptr[t] + jmp LFDIVInFlight1 + align 4 +LSetupNotLast1: + fxch st(1) + fld st(0) + fmul st(0),st(4) + fxch st(1) + fmul st(0),st(3) + fxch st(1) + fistp ds:dword ptr[s] + fistp ds:dword ptr[t] + fadd ds:dword ptr[zi8stepu] + fxch st(2) + fadd ds:dword ptr[sdivz8stepu] + fxch st(2) + fld ds:dword ptr[tdivz8stepu] + faddp st(2),st(0) + fld ds:dword ptr[fp_64k] + fdiv st(0),st(1) +LFDIVInFlight1: + add esi,ds:dword ptr[s] + add edx,ds:dword ptr[t] + mov ebx,ds:dword ptr[_bbextents] + mov ebp,ds:dword ptr[_bbextentt] + cmp esi,ebx + ja LClampHighOrLow0 +LClampReentry0: + mov ds:dword ptr[s],esi + mov ebx,ds:dword ptr[pbase] + shl esi,16 + cmp edx,ebp + mov ds:dword ptr[sfracf],esi + ja LClampHighOrLow1 +LClampReentry1: + mov ds:dword ptr[t],edx + mov esi,ds:dword ptr[s] + shl edx,16 + mov eax,ds:dword ptr[t] + sar esi,16 + mov ds:dword ptr[tfracf],edx + sar eax,16 + mov edx,ds:dword ptr[_cachewidth] + imul eax,edx + add esi,ebx + add esi,eax + cmp ecx,8 + jna LLastSegment +LNotLastSegment: + fld st(0) + fmul st(0),st(4) + fxch st(1) + fmul st(0),st(3) + fxch st(1) + fistp ds:dword ptr[snext] + fistp ds:dword ptr[tnext] + mov eax,ds:dword ptr[snext] + mov edx,ds:dword ptr[tnext] + mov bl,ds:byte ptr[esi] + sub ecx,8 + mov ebp,ds:dword ptr[_sadjust] + mov ds:dword ptr[counttemp],ecx + mov ecx,ds:dword ptr[_tadjust] + mov ds:byte ptr[edi],bl + add ebp,eax + add ecx,edx + mov eax,ds:dword ptr[_bbextents] + mov edx,ds:dword ptr[_bbextentt] + cmp ebp,2048 + jl LClampLow2 + cmp ebp,eax + ja LClampHigh2 +LClampReentry2: + cmp ecx,2048 + jl LClampLow3 + cmp ecx,edx + ja LClampHigh3 +LClampReentry3: + mov ds:dword ptr[snext],ebp + mov ds:dword ptr[tnext],ecx + sub ebp,ds:dword ptr[s] + sub ecx,ds:dword ptr[t] + mov eax,ecx + mov edx,ebp + sar eax,19 + jz LZero + sar edx,19 + mov ebx,ds:dword ptr[_cachewidth] + imul eax,ebx + jmp LSetUp1 +LZero: + sar edx,19 + mov ebx,ds:dword ptr[_cachewidth] +LSetUp1: + add eax,edx + mov edx,ds:dword ptr[tfracf] + mov ds:dword ptr[advancetable+4],eax + add eax,ebx + shl ebp,13 + mov ebx,ds:dword ptr[sfracf] + shl ecx,13 + mov ds:dword ptr[advancetable],eax + mov ds:dword ptr[tstep],ecx + add edx,ecx + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + mov al,ds:byte ptr[esi] + add ebx,ebp + mov ds:byte ptr[1+edi],al + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + mov ds:byte ptr[2+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + mov ds:byte ptr[3+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + mov ecx,ds:dword ptr[counttemp] + cmp ecx,8 + ja LSetupNotLast2 + dec ecx + jz LFDIVInFlight2 + mov ds:dword ptr[spancountminus1],ecx + fild ds:dword ptr[spancountminus1] + fld ds:dword ptr[_d_zistepu] + fmul st(0),st(1) + fld ds:dword ptr[_d_tdivzstepu] + fmul st(0),st(2) + fxch st(1) + faddp st(3),st(0) + fxch st(1) + fmul ds:dword ptr[_d_sdivzstepu] + fxch st(1) + faddp st(3),st(0) + fld ds:dword ptr[fp_64k] + fxch st(1) + faddp st(4),st(0) + fdiv st(0),st(1) + jmp LFDIVInFlight2 + align 4 +LSetupNotLast2: + fadd ds:dword ptr[zi8stepu] + fxch st(2) + fadd ds:dword ptr[sdivz8stepu] + fxch st(2) + fld ds:dword ptr[tdivz8stepu] + faddp st(2),st(0) + fld ds:dword ptr[fp_64k] + fdiv st(0),st(1) +LFDIVInFlight2: + mov ds:dword ptr[counttemp],ecx + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + mov ds:byte ptr[4+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + mov ds:byte ptr[5+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + mov ds:byte ptr[6+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edi,8 + mov ds:dword ptr[tfracf],edx + mov edx,ds:dword ptr[snext] + mov ds:dword ptr[sfracf],ebx + mov ebx,ds:dword ptr[tnext] + mov ds:dword ptr[s],edx + mov ds:dword ptr[t],ebx + mov ecx,ds:dword ptr[counttemp] + cmp ecx,8 + mov ds:byte ptr[-1+edi],al + ja LNotLastSegment +LLastSegment: + test ecx,ecx + jz LNoSteps + fld st(0) + fmul st(0),st(4) + fxch st(1) + fmul st(0),st(3) + fxch st(1) + fistp ds:dword ptr[snext] + fistp ds:dword ptr[tnext] + mov al,ds:byte ptr[esi] + mov ebx,ds:dword ptr[_tadjust] + mov ds:byte ptr[edi],al + mov eax,ds:dword ptr[_sadjust] + add eax,ds:dword ptr[snext] + add ebx,ds:dword ptr[tnext] + mov ebp,ds:dword ptr[_bbextents] + mov edx,ds:dword ptr[_bbextentt] + cmp eax,2048 + jl LClampLow4 + cmp eax,ebp + ja LClampHigh4 +LClampReentry4: + mov ds:dword ptr[snext],eax + cmp ebx,2048 + jl LClampLow5 + cmp ebx,edx + ja LClampHigh5 +LClampReentry5: + cmp ecx,1 + je LOnlyOneStep + sub eax,ds:dword ptr[s] + sub ebx,ds:dword ptr[t] + add eax,eax + add ebx,ebx + imul ds:dword ptr[reciprocal_table-8+ecx*4] + mov ebp,edx + mov eax,ebx + imul ds:dword ptr[reciprocal_table-8+ecx*4] +LSetEntryvec: + mov ebx,ds:dword ptr[entryvec_table+ecx*4] + mov eax,edx + mov ds:dword ptr[jumptemp],ebx + mov ecx,ebp + sar edx,16 + mov ebx,ds:dword ptr[_cachewidth] + sar ecx,16 + imul edx,ebx + add edx,ecx + mov ecx,ds:dword ptr[tfracf] + mov ds:dword ptr[advancetable+4],edx + add edx,ebx + shl ebp,16 + mov ebx,ds:dword ptr[sfracf] + shl eax,16 + mov ds:dword ptr[advancetable],edx + mov ds:dword ptr[tstep],eax + mov edx,ecx + add edx,eax + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + jmp dword ptr[jumptemp] +LNoSteps: + mov al,ds:byte ptr[esi] + sub edi,7 + jmp LEndSpan +LOnlyOneStep: + sub eax,ds:dword ptr[s] + sub ebx,ds:dword ptr[t] + mov ebp,eax + mov edx,ebx + jmp LSetEntryvec + public Entry2_8 +Entry2_8: + sub edi,6 + mov al,ds:byte ptr[esi] + jmp LLEntry2_8 + public Entry3_8 +Entry3_8: + sub edi,5 + add edx,eax + mov al,ds:byte ptr[esi] + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + jmp LLEntry3_8 + public Entry4_8 +Entry4_8: + sub edi,4 + add edx,eax + mov al,ds:byte ptr[esi] + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + jmp LLEntry4_8 + public Entry5_8 +Entry5_8: + sub edi,3 + add edx,eax + mov al,ds:byte ptr[esi] + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + jmp LLEntry5_8 + public Entry6_8 +Entry6_8: + sub edi,2 + add edx,eax + mov al,ds:byte ptr[esi] + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + jmp LLEntry6_8 + public Entry7_8 +Entry7_8: + dec edi + add edx,eax + mov al,ds:byte ptr[esi] + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + jmp LLEntry7_8 + public Entry8_8 +Entry8_8: + add edx,eax + mov al,ds:byte ptr[esi] + sbb ecx,ecx + add ebx,ebp + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] + sbb ecx,ecx + mov ds:byte ptr[1+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] +LLEntry7_8: + sbb ecx,ecx + mov ds:byte ptr[2+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] +LLEntry6_8: + sbb ecx,ecx + mov ds:byte ptr[3+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] +LLEntry5_8: + sbb ecx,ecx + mov ds:byte ptr[4+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] + add edx,ds:dword ptr[tstep] +LLEntry4_8: + sbb ecx,ecx + mov ds:byte ptr[5+edi],al + add ebx,ebp + mov al,ds:byte ptr[esi] + adc esi,ds:dword ptr[advancetable+4+ecx*4] +LLEntry3_8: + mov ds:byte ptr[6+edi],al + mov al,ds:byte ptr[esi] +LLEntry2_8: +LEndSpan: + fstp st(0) + fstp st(0) + fstp st(0) + mov ebx,ds:dword ptr[pspantemp] + mov ebx,ds:dword ptr[12+ebx] + test ebx,ebx + mov ds:byte ptr[7+edi],al + jnz LSpanLoop + pop ebx + pop esi + pop edi + pop ebp + ret + +LClamp: + mov edx,040000000h + xor ebx,ebx + fstp st(0) + jmp LZDraw +LClampNeg: + mov edx,040000000h + xor ebx,ebx + fstp st(0) + jmp LZDrawNeg + public _D_DrawZSpans +_D_DrawZSpans: + push ebp + push edi + push esi + push ebx + fld ds:dword ptr[_d_zistepu] + mov eax,ds:dword ptr[_d_zistepu] + mov esi,ds:dword ptr[4+16+esp] + test eax,eax + jz LFNegSpan + fmul ds:dword ptr[Float2ToThe31nd] + fistp ds:dword ptr[izistep] + mov ebx,ds:dword ptr[izistep] +LFSpanLoop: + fild ds:dword ptr[4+esi] + fild ds:dword ptr[0+esi] + mov ecx,ds:dword ptr[4+esi] + mov edi,ds:dword ptr[_d_pzbuffer] + fmul ds:dword ptr[_d_zistepu] + fxch st(1) + fmul ds:dword ptr[_d_zistepv] + fxch st(1) + fadd ds:dword ptr[_d_ziorigin] + imul ecx,ds:dword ptr[_d_zrowbytes] + faddp st(1),st(0) + fcom ds:dword ptr[float_point5] + add edi,ecx + mov edx,ds:dword ptr[0+esi] + add edx,edx + mov ecx,ds:dword ptr[8+esi] + add edi,edx + push esi + fnstsw ax + test ah,045h + jz LClamp + fmul ds:dword ptr[Float2ToThe31nd] + fistp ds:dword ptr[izi] + mov edx,ds:dword ptr[izi] +LZDraw: + test edi,2 + jz LFMiddle + mov eax,edx + add edx,ebx + shr eax,16 + dec ecx + mov ds:word ptr[edi],ax + add edi,2 +LFMiddle: + push ecx + shr ecx,1 + jz LFLast + shr ecx,1 + jnc LFMiddleLoop + mov eax,edx + add edx,ebx + shr eax,16 + mov esi,edx + add edx,ebx + and esi,0FFFF0000h + or eax,esi + mov ds:dword ptr[edi],eax + add edi,4 + and ecx,ecx + jz LFLast +LFMiddleLoop: + mov eax,edx + add edx,ebx + shr eax,16 + mov esi,edx + add edx,ebx + and esi,0FFFF0000h + or eax,esi + mov ebp,edx + mov ds:dword ptr[edi],eax + add edx,ebx + shr ebp,16 + mov esi,edx + add edx,ebx + and esi,0FFFF0000h + or ebp,esi + mov ds:dword ptr[4+edi],ebp + add edi,8 + dec ecx + jnz LFMiddleLoop +LFLast: + pop ecx + pop esi + and ecx,1 + jz LFSpanDone + shr edx,16 + mov ds:word ptr[edi],dx +LFSpanDone: + mov esi,ds:dword ptr[12+esi] + test esi,esi + jnz LFSpanLoop + jmp LFDone +LFNegSpan: + fmul ds:dword ptr[FloatMinus2ToThe31nd] + fistp ds:dword ptr[izistep] + mov ebx,ds:dword ptr[izistep] +LFNegSpanLoop: + fild ds:dword ptr[4+esi] + fild ds:dword ptr[0+esi] + mov ecx,ds:dword ptr[4+esi] + mov edi,ds:dword ptr[_d_pzbuffer] + fmul ds:dword ptr[_d_zistepu] + fxch st(1) + fmul ds:dword ptr[_d_zistepv] + fxch st(1) + fadd ds:dword ptr[_d_ziorigin] + imul ecx,ds:dword ptr[_d_zrowbytes] + faddp st(1),st(0) + fcom ds:dword ptr[float_point5] + add edi,ecx + mov edx,ds:dword ptr[0+esi] + add edx,edx + mov ecx,ds:dword ptr[8+esi] + add edi,edx + push esi + fnstsw ax + test ah,045h + jz LClampNeg + fmul ds:dword ptr[Float2ToThe31nd] + fistp ds:dword ptr[izi] + mov edx,ds:dword ptr[izi] +LZDrawNeg: + test edi,2 + jz LFNegMiddle + mov eax,edx + sub edx,ebx + shr eax,16 + dec ecx + mov ds:word ptr[edi],ax + add edi,2 +LFNegMiddle: + push ecx + shr ecx,1 + jz LFNegLast + shr ecx,1 + jnc LFNegMiddleLoop + mov eax,edx + sub edx,ebx + shr eax,16 + mov esi,edx + sub edx,ebx + and esi,0FFFF0000h + or eax,esi + mov ds:dword ptr[edi],eax + add edi,4 + and ecx,ecx + jz LFNegLast +LFNegMiddleLoop: + mov eax,edx + sub edx,ebx + shr eax,16 + mov esi,edx + sub edx,ebx + and esi,0FFFF0000h + or eax,esi + mov ebp,edx + mov ds:dword ptr[edi],eax + sub edx,ebx + shr ebp,16 + mov esi,edx + sub edx,ebx + and esi,0FFFF0000h + or ebp,esi + mov ds:dword ptr[4+edi],ebp + add edi,8 + dec ecx + jnz LFNegMiddleLoop +LFNegLast: + pop ecx + pop esi + and ecx,1 + jz LFNegSpanDone + shr edx,16 + mov ds:word ptr[edi],dx +LFNegSpanDone: + mov esi,ds:dword ptr[12+esi] + test esi,esi + jnz LFNegSpanLoop +LFDone: + pop ebx + pop esi + pop edi + pop ebp + ret +_TEXT ENDS + END |