From 99fa5d0252d1be21d554ea1e57e2764ee0889e99 Mon Sep 17 00:00:00 2001 From: mittorn Date: Sat, 6 Apr 2019 15:55:00 +0700 Subject: [PATCH] ref_soft: Another bound check implementation (todo: compare) --- r_polyse.c | 188 ++++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 143 insertions(+), 45 deletions(-) diff --git a/r_polyse.c b/r_polyse.c index 1bbafd14..6881f24a 100644 --- a/r_polyse.c +++ b/r_polyse.c @@ -206,44 +206,6 @@ void R_DrawTriangle( void ) } } -/// TODO: fix this and do not check bounds in shader -static inline qboolean R_CheckBounds( void) -{ - //pixel_t *skin = r_affinetridesc.pskin; - -#if 0 // does not help. Quake 2 Developers, PLEASE FIX UR F***NG CODE!!! - - int lcount = errorterm >= 0?d_countextrastep:ubasestep; - pixel_t *lptex1, *lptex2, *lptex3, *lptex4; - - lcount+=2; - - if( lcount <= 0 ) - lcount = 2; - - lptex1 = d_ptex + a_ststepxwhole * lcount + ((a_sstepxfrac * lcount) >> 16) + ((a_tstepxfrac * lcount) >> 16)*r_affinetridesc.skinwidth; - lptex2 = d_ptex + a_ststepxwhole * lcount + ((a_sstepxfrac * lcount) >> 16); - lptex3 = d_ptex + a_ststepxwhole * lcount + ((a_tstepxfrac * lcount) >> 16)*r_affinetridesc.skinwidth; - lptex4 = d_ptex + a_ststepxwhole * lcount; - - - - - //if( lptex1 < skin || lptex1 > skin + r_affinetridesc.skinwidth * r_affinetridesc.skinheight ) - // return false; - // if( lptex2 < skin || lptex2 > skin + r_affinetridesc.skinwidth * r_affinetridesc.skinheight ) - // return false; - //if( lptex3 < skin || lptex3 > skin + r_affinetridesc.skinwidth * r_affinetridesc.skinheight ) - // return false; - // if( lptex4 < skin || lptex4 > skin + r_affinetridesc.skinwidth * r_affinetridesc.skinheight ) - // return false; - -#endif - //if( d_ptex - skin < 0 || d_ptex - ( skin + r_affinetridesc.skinwidth * r_affinetridesc.skinheight ) >= 0 ) - //return false; - - return true; -} static pixel_t *skinend; @@ -255,6 +217,111 @@ static inline qboolean R_DrawCheckBounds( pixel_t *lptex ) return true; } +/// TODO: fix this and do not check bounds in shader +static inline qboolean R_CheckBounds( void) +{ +#if 0 + spanpackage_t *pspanpackage = d_pedgespanpackage; + int lcount; + int aspancount = d_aspancount; + + int lerrorterm = errorterm + erroradjustup; + if (lerrorterm >= 0) + { + aspancount += d_countextrastep; + lerrorterm -= erroradjustdown; + } + else + { + aspancount += ubasestep; + } + + + lcount = pspanpackage->count;//d_aspancount;//max(fabs(ubasestep),fabs(d_countextrastep)); + printf("c %d %d\n", lcount, errorterm ); + if( lcount == 0 ) + lcount = max(fabs(ubasestep),fabs(d_countextrastep)); + if( lcount < 0 ) + return false; + if (lcount) + { + int lsfrac, ltfrac; + byte *lptex; + + lptex = pspanpackage->ptex; + lsfrac = pspanpackage->sfrac; + ltfrac = pspanpackage->tfrac; + + do + { + if( !R_DrawCheckBounds( lptex ) ) + return false; + + lptex += a_ststepxwhole; + lsfrac += a_sstepxfrac; + lptex += lsfrac >> 16; + lsfrac &= 0xFFFF; + ltfrac += a_tstepxfrac; + if (ltfrac & 0x10000) + { + lptex += r_affinetridesc.skinwidth; + ltfrac &= 0xFFFF; + } + } while (--lcount); + } + return true; +#endif + return true; +} + + +/// TODO: fix this and do not check bounds in shader +static inline qboolean R_CheckBounds2( spanpackage_t *pspanpackage, int lcount ) +{ + int lsfrac, ltfrac; + byte *lptex; + + lptex = pspanpackage->ptex; + lsfrac = pspanpackage->sfrac; + ltfrac = pspanpackage->tfrac; + + do + { + if( !R_DrawCheckBounds( lptex ) ) + return false; + + lptex += a_ststepxwhole; + lsfrac += a_sstepxfrac; + lptex += lsfrac >> 16; + lsfrac &= 0xFFFF; + ltfrac += a_tstepxfrac; + if (ltfrac & 0x10000) + { + lptex += r_affinetridesc.skinwidth; + ltfrac &= 0xFFFF; + } + } while (--lcount); + // try cover all edge cases +/* + if( !R_DrawCheckBounds(lptex) ) + return false; + lcount--; + if( !R_DrawCheckBounds(lptex + a_ststepxwhole * lcount + ((lsfrac * lcount) >> 16)) ) + return false; + if( !R_DrawCheckBounds(lptex + a_ststepxwhole * lcount + ((ltfrac * lcount) >> 16) * r_affinetridesc.skinwidth ) ) + return false; + + if( !R_DrawCheckBounds(lptex + ((ltfrac * lcount) >> 16) * r_affinetridesc.skinwidth ) ) + return false; + + if( !R_DrawCheckBounds(lptex + a_ststepxwhole * lcount + ((lsfrac * lcount) >> 16) + ((ltfrac * lcount) >> 16) * r_affinetridesc.skinwidth ) ) + return false; +*/ + + return true; +} + + /* =================== R_PolysetScanLeftEdge_C @@ -815,6 +882,10 @@ void R_PolysetDrawSpansBlended( spanpackage_t *pspanpackage) if (lcount) { +#if BOUNDCHECK_MODE == 0 + if( !R_CheckBounds2( pspanpackage, lcount ) ) + return; +#endif lpdest = pspanpackage->pdest; lptex = pspanpackage->ptex; lpz = pspanpackage->pz; @@ -834,8 +905,10 @@ void R_PolysetDrawSpansBlended( spanpackage_t *pspanpackage) return; } #endif +#if BOUNDCHECK_MODE == 1 if( !R_DrawCheckBounds( lptex ) ) return; +#endif pixel_t temp = *lptex;//vid.colormap[*lptex + ( llight & 0xFF00 )]; temp = BLEND_COLOR(temp, vid.color); @@ -907,13 +980,19 @@ void R_PolysetDrawSpansAdditive( spanpackage_t *pspanpackage) ltfrac = pspanpackage->tfrac; llight = pspanpackage->light; lzi = pspanpackage->zi; - +#if BOUNDCHECK_MODE == 0 + if( !R_CheckBounds2( pspanpackage, lcount ) ) + return; +#endif do { + if ((lzi >> 16) >= *lpz) { +#if BOUNDCHECK_MODE == 1 if( !R_DrawCheckBounds( lptex ) ) return; +#endif #if 0 if((int)(lptex - (pixel_t*)r_affinetridesc.pskin) > r_affinetridesc.skinwidth * r_affinetridesc.skinheight || (int)(lptex - (pixel_t*)r_affinetridesc.pskin) < 0 ) { @@ -981,6 +1060,10 @@ void R_PolysetDrawSpansGlow( spanpackage_t *pspanpackage) if (lcount) { +#if BOUNDCHECK_MODE == 0 + if( !R_CheckBounds2( pspanpackage, lcount ) ) + return; +#endif lpdest = pspanpackage->pdest; lptex = pspanpackage->ptex; lpz = pspanpackage->pz; @@ -993,8 +1076,10 @@ void R_PolysetDrawSpansGlow( spanpackage_t *pspanpackage) { //if ((lzi >> 16) >= *lpz) { +#if BOUNDCHECK_MODE == 1 if( !R_DrawCheckBounds( lptex ) ) return; +#endif #if 0 if((int)(lptex - (pixel_t*)r_affinetridesc.pskin) > r_affinetridesc.skinwidth * r_affinetridesc.skinheight || (int)(lptex - (pixel_t*)r_affinetridesc.pskin) < 0 ) { @@ -1062,6 +1147,10 @@ void R_PolysetDrawSpansTextureBlended( spanpackage_t *pspanpackage) if (lcount) { +#if BOUNDCHECK_MODE == 0 + if( !R_CheckBounds2( pspanpackage, lcount ) ) + return; +#endif lpdest = pspanpackage->pdest; lptex = pspanpackage->ptex; lpz = pspanpackage->pz; @@ -1074,8 +1163,10 @@ void R_PolysetDrawSpansTextureBlended( spanpackage_t *pspanpackage) { if ((lzi >> 16) >= *lpz) { +#if BOUNDCHECK_MODE == 1 if( !R_DrawCheckBounds( lptex ) ) return; +#endif #if 0 if((int)(lptex - (pixel_t*)r_affinetridesc.pskin) > r_affinetridesc.skinwidth * r_affinetridesc.skinheight || (int)(lptex - (pixel_t*)r_affinetridesc.pskin) < 0 ) { @@ -1469,6 +1560,7 @@ void R_PolysetFillSpans8 (spanpackage_t *pspanpackage) do { lcount = d_aspancount - pspanpackage->count; + d_ptex + a_ststepxwhole * lcount + ((a_sstepxfrac * lcount) >> 16) + ((a_tstepxfrac * lcount) >> 16)*r_affinetridesc.skinwidth; errorterm += erroradjustup; if (errorterm >= 0) @@ -1489,6 +1581,10 @@ void R_PolysetFillSpans8 (spanpackage_t *pspanpackage) int llight; int lzi; short *lpz; +#if BOUNDCHECK_MODE == 0 + if( !R_CheckBounds2( pspanpackage, lcount ) ) + return; +#endif lpdest = pspanpackage->pdest; lptex = pspanpackage->ptex; @@ -1502,8 +1598,10 @@ void R_PolysetFillSpans8 (spanpackage_t *pspanpackage) { if ((lzi >> 16) >= *lpz) { +#if BOUNDCHECK_MODE == 1 if( !R_DrawCheckBounds( lptex ) ) return; +#endif //PGM /*if(r_newrefdef.rdflags & RDF_IRGOGGLES && RI.currententity->flags & RF_IR_VISIBLE) *lpdest = ((byte *)vid.colormap)[irtable[*lptex]]; @@ -1540,7 +1638,7 @@ void R_PolysetFillSpans8 (spanpackage_t *pspanpackage) lptex += r_affinetridesc.skinwidth; ltfrac &= 0xFFFF; } - } while (lcount--); + } while (--lcount); } pspanpackage ++; @@ -1612,8 +1710,7 @@ void R_RasterizeAliasPolySmooth (void) if (initialleftheight == 1) { - if( !R_CheckBounds() ) - return; + d_pedgespanpackage->pdest = d_pdest; d_pedgespanpackage->pz = d_pz; d_pedgespanpackage->count = d_aspancount; @@ -1625,7 +1722,8 @@ void R_RasterizeAliasPolySmooth (void) // FIXME: need to clamp l, s, t, at both ends? d_pedgespanpackage->light = d_light; d_pedgespanpackage->zi = d_zi; - + if( !R_CheckBounds() ) + return; d_pedgespanpackage++; } else @@ -1745,8 +1843,6 @@ void R_RasterizeAliasPolySmooth (void) d_pdest = (pixel_t *)d_viewbuffer + ystart * r_screenwidth + plefttop[0]; d_pz = d_pzbuffer + ystart * d_zwidth + plefttop[0]; - if( !R_CheckBounds() ) - return; if (height == 1) @@ -1763,6 +1859,8 @@ void R_RasterizeAliasPolySmooth (void) d_pedgespanpackage->light = d_light; d_pedgespanpackage->zi = d_zi; + if( !R_CheckBounds() ) + return; d_pedgespanpackage++; } else