mirror of https://github.com/ZDoom/gzdoom-gles.git
- partial floatification of wall texturing code.
This commit is contained in:
Christoph Oelckers
parent
485a1bd0a5
commit
ee3e3e35e6
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@ -191,12 +191,12 @@ private:
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bool DoHorizon(seg_t * seg,sector_t * fs, vertex_t * v1,vertex_t * v2);
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bool SetWallCoordinates(seg_t * seg, FTexCoordInfo *tci, float ceilingrefheight,
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fixed_t topleft, fixed_t topright, fixed_t bottomleft, fixed_t bottomright, fixed_t t_ofs);
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float topleft, float topright, float bottomleft, float bottomright, fixed_t t_ofs);
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void DoTexture(int type,seg_t * seg,int peg,
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fixed_t ceilingrefheight,fixed_t floorrefheight,
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fixed_t CeilingHeightstart,fixed_t CeilingHeightend,
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fixed_t FloorHeightstart,fixed_t FloorHeightend,
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float CeilingHeightstart,float CeilingHeightend,
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float FloorHeightstart,float FloorHeightend,
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fixed_t v_offset);
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void DoMidTexture(seg_t * seg, bool drawfogboundary,
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@ -393,7 +393,7 @@ bool GLWall::DoHorizon(seg_t * seg,sector_t * fs, vertex_t * v1,vertex_t * v2)
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ztop[1] = ztop[0] = zbottom[0];
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}
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if (viewz > fs->GetPlaneTexZ(sector_t::floor))
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if (ViewPos.Z > fs->GetPlaneTexZF(sector_t::floor))
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{
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zbottom[1] = zbottom[0] = fs->GetPlaneTexZF(sector_t::floor);
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if (fs->GetTexture(sector_t::floor) == skyflatnum)
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@ -428,7 +428,7 @@ bool GLWall::DoHorizon(seg_t * seg,sector_t * fs, vertex_t * v1,vertex_t * v2)
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//
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//==========================================================================
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bool GLWall::SetWallCoordinates(seg_t * seg, FTexCoordInfo *tci, float texturetop,
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fixed_t topleft, fixed_t topright, fixed_t bottomleft, fixed_t bottomright, fixed_t t_ofs)
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float topleft, float topright, float bottomleft, float bottomright, fixed_t t_ofs)
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{
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//
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//
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@ -438,18 +438,18 @@ bool GLWall::SetWallCoordinates(seg_t * seg, FTexCoordInfo *tci, float textureto
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float l_ul;
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float texlength;
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if (gltexture)
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if (gltexture)
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{
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float length = seg->sidedef? seg->sidedef->TexelLength: Dist2(glseg.x1, glseg.y1, glseg.x2, glseg.y2);
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float length = seg->sidedef ? seg->sidedef->TexelLength : Dist2(glseg.x1, glseg.y1, glseg.x2, glseg.y2);
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l_ul=tci->FloatToTexU(FIXED2FLOAT(tci->TextureOffset(t_ofs)));
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l_ul = tci->FloatToTexU(FIXED2FLOAT(tci->TextureOffset(t_ofs)));
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texlength = tci->FloatToTexU(length);
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}
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else
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else
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{
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tci=NULL;
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l_ul=0;
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texlength=0;
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tci = NULL;
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l_ul = 0;
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texlength = 0;
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}
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@ -458,38 +458,36 @@ bool GLWall::SetWallCoordinates(seg_t * seg, FTexCoordInfo *tci, float textureto
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// set up coordinates for the left side of the polygon
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//
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// check left side for intersections
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if (topleft>=bottomleft)
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if (topleft >= bottomleft)
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{
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// normal case
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ztop[0]=FIXED2FLOAT(topleft);
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zbottom[0]=FIXED2FLOAT(bottomleft);
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ztop[0] = topleft;
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zbottom[0] = bottomleft;
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if (tci)
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{
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uplft.v=tci->FloatToTexV(-ztop[0] + texturetop);
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lolft.v=tci->FloatToTexV(-zbottom[0] + texturetop);
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uplft.v = tci->FloatToTexV(-ztop[0] + texturetop);
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lolft.v = tci->FloatToTexV(-zbottom[0] + texturetop);
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}
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}
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else
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{
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// ceiling below floor - clip to the visible part of the wall
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fixed_t dch=topright-topleft;
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fixed_t dfh=bottomright-bottomleft;
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fixed_t coeff=FixedDiv(bottomleft-topleft, dch-dfh);
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float dch = topright - topleft;
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float dfh = bottomright - bottomleft;
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float inter_x = (bottomleft - topleft) / (dch - dfh);
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fixed_t inter_y=topleft+FixedMul(coeff,dch);
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float inter_x= FIXED2FLOAT(coeff);
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float inter_y = topleft + inter_x * dch;
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glseg.x1 = glseg.x1 + inter_x * (glseg.x2 - glseg.x1);
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glseg.y1 = glseg.y1 + inter_x * (glseg.y2 - glseg.y1);
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glseg.fracleft = inter_x;
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zbottom[0]=ztop[0]=FIXED2FLOAT(inter_y);
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zbottom[0] = ztop[0] = inter_y;
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if (tci)
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{
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lolft.v=uplft.v=tci->FloatToTexV(-ztop[0] + texturetop);
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lolft.v = uplft.v = tci->FloatToTexV(-ztop[0] + texturetop);
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}
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}
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@ -501,34 +499,32 @@ bool GLWall::SetWallCoordinates(seg_t * seg, FTexCoordInfo *tci, float textureto
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if (topright >= bottomright)
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{
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// normal case
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ztop[1]=FIXED2FLOAT(topright);
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zbottom[1]=FIXED2FLOAT(bottomright);
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ztop[1] = topright;
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zbottom[1] = bottomright;
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if (tci)
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{
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uprgt.v=tci->FloatToTexV(-ztop[1] + texturetop);
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lorgt.v=tci->FloatToTexV(-zbottom[1] + texturetop);
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uprgt.v = tci->FloatToTexV(-ztop[1] + texturetop);
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lorgt.v = tci->FloatToTexV(-zbottom[1] + texturetop);
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}
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}
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else
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{
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// ceiling below floor - clip to the visible part of the wall
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fixed_t dch=topright-topleft;
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fixed_t dfh=bottomright-bottomleft;
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fixed_t coeff=FixedDiv(bottomleft-topleft, dch-dfh);
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float dch = topright - topleft;
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float dfh = bottomright - bottomleft;
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float inter_x = (bottomleft - topleft) / (dch - dfh);
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fixed_t inter_y=topleft+FixedMul(coeff,dch);
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float inter_x= FIXED2FLOAT(coeff);
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float inter_y = topleft + inter_x * dch;
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glseg.x2 = glseg.x1 + inter_x * (glseg.x2 - glseg.x1);
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glseg.y2 = glseg.y1 + inter_x * (glseg.y2 - glseg.y1);
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glseg.fracright = inter_x;
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zbottom[1]=ztop[1]=FIXED2FLOAT(inter_y);
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zbottom[1] = ztop[1] = inter_y;
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if (tci)
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{
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lorgt.v=uprgt.v=tci->FloatToTexV(-ztop[1] + texturetop);
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lorgt.v = uprgt.v = tci->FloatToTexV(-ztop[1] + texturetop);
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}
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}
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@ -547,13 +543,13 @@ bool GLWall::SetWallCoordinates(seg_t * seg, FTexCoordInfo *tci, float textureto
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if (normalize)
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{
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// we have to shift the y-coordinate from [-1..0] to [0..1] when using texture clamping with a negative scale
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uplft.v+=1.f;
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uprgt.v+=1.f;
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lolft.v+=1.f;
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lorgt.v+=1.f;
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uplft.v += 1.f;
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uprgt.v += 1.f;
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lolft.v += 1.f;
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lorgt.v += 1.f;
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}
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}
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return true;
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}
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@ -598,8 +594,8 @@ void GLWall::CheckTexturePosition()
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//==========================================================================
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void GLWall::DoTexture(int _type,seg_t * seg, int peg,
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fixed_t ceilingrefheight,fixed_t floorrefheight,
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fixed_t topleft,fixed_t topright,
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fixed_t bottomleft,fixed_t bottomright,
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float topleft,float topright,
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float bottomleft,float bottomright,
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fixed_t v_offset)
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{
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if (topleft<=bottomleft && topright<=bottomright) return;
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@ -845,7 +841,7 @@ void GLWall::DoMidTexture(seg_t * seg, bool drawfogboundary,
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tci.mRenderHeight = -tci.mRenderHeight;
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tci.mScaleY = -tci.mScaleY;
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}
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SetWallCoordinates(seg, &tci, FIXED2FLOAT(texturetop), topleft, topright, bottomleft, bottomright, t_ofs);
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SetWallCoordinates(seg, &tci, FIXED2FLOAT(texturetop), FIXED2FLOAT(topleft), FIXED2FLOAT(topright), FIXED2FLOAT(bottomleft), FIXED2FLOAT(bottomright), t_ofs);
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//
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//
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@ -1317,10 +1313,10 @@ void GLWall::DoFFloorBlocks(seg_t * seg,sector_t * frontsector,sector_t * backse
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void GLWall::Process(seg_t *seg, sector_t * frontsector, sector_t * backsector)
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{
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vertex_t * v1, *v2;
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fixed_t fch1;
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fixed_t ffh1;
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fixed_t fch2;
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fixed_t ffh2;
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float fch1;
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float ffh1;
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float fch2;
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float ffh2;
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sector_t * realfront;
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sector_t * realback;
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sector_t * segfront;
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@ -1428,22 +1424,10 @@ void GLWall::Process(seg_t *seg, sector_t * frontsector, sector_t * backsector)
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topplane = frontsector->ceilingplane;
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bottomplane = frontsector->floorplane;
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double v;
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v= segfront->floorplane.ZatPoint(v1);
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zfloor[0] = v;
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ffh1 = FLOAT2FIXED(v);
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v = segfront->floorplane.ZatPoint(v2);
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zfloor[1] = v;
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ffh2 = FLOAT2FIXED(v);
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v = segfront->ceilingplane.ZatPoint(v1);
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zceil[0] = v;
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fch1 = FLOAT2FIXED(v);
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v = segfront->ceilingplane.ZatPoint(v2);
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zceil[1] = v;
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fch2 = FLOAT2FIXED(v);
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zfloor[0] = ffh1 = segfront->floorplane.ZatPoint(v1);
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zfloor[1] = ffh2 = segfront->floorplane.ZatPoint(v2);
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zceil[0] = fch1 = segfront->ceilingplane.ZatPoint(v1);
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zceil[1] = fch2 = segfront->ceilingplane.ZatPoint(v2);
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if (seg->linedef->special == Line_Horizon)
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{
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@ -1482,17 +1466,10 @@ void GLWall::Process(seg_t *seg, sector_t * frontsector, sector_t * backsector)
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}
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else // two sided
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{
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fixed_t bch1;
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fixed_t bch2;
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fixed_t bfh1;
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fixed_t bfh2;
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bfh1 = segback->floorplane.ZatPointFixed(v1);
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bfh2 = segback->floorplane.ZatPointFixed(v2);
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bch1 = segback->ceilingplane.ZatPointFixed(v1);
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bch2 = segback->ceilingplane.ZatPointFixed(v2);
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float bfh1 = segback->floorplane.ZatPoint(v1);
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float bfh2 = segback->floorplane.ZatPoint(v2);
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float bch1 = segback->ceilingplane.ZatPoint(v1);
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float bch2 = segback->ceilingplane.ZatPoint(v2);
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SkyTop(seg, frontsector, backsector, v1, v2);
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SkyBottom(seg, frontsector, backsector, v1, v2);
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@ -1500,7 +1477,7 @@ void GLWall::Process(seg_t *seg, sector_t * frontsector, sector_t * backsector)
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// upper texture
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if (frontsector->GetTexture(sector_t::ceiling) != skyflatnum || backsector->GetTexture(sector_t::ceiling) != skyflatnum)
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{
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fixed_t bch1a = bch1, bch2a = bch2;
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float bch1a = bch1, bch2a = bch2;
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if (frontsector->GetTexture(sector_t::floor) != skyflatnum || backsector->GetTexture(sector_t::floor) != skyflatnum)
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{
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// the back sector's floor obstructs part of this wall
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@ -1563,26 +1540,26 @@ void GLWall::Process(seg_t *seg, sector_t * frontsector, sector_t * backsector)
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if (gltexture || drawfogboundary)
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{
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DoMidTexture(seg, drawfogboundary, frontsector, backsector, realfront, realback,
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fch1, fch2, ffh1, ffh2, bch1, bch2, bfh1, bfh2);
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FLOAT2FIXED(fch1), FLOAT2FIXED(fch2), FLOAT2FIXED(ffh1), FLOAT2FIXED(ffh2), FLOAT2FIXED(bch1), FLOAT2FIXED(bch2), FLOAT2FIXED(bfh1), FLOAT2FIXED(bfh2));
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}
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if (seg->linedef->isVisualPortal() && seg->sidedef == seg->linedef->sidedef[0])
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{
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lineportal = linePortalToGL[seg->linedef->portalindex];
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ztop[0] = FIXED2FLOAT(bch1);
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ztop[1] = FIXED2FLOAT(bch2);
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zbottom[0] = FIXED2FLOAT(bfh1);
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zbottom[1] = FIXED2FLOAT(bfh2);
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ztop[0] = bch1;
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ztop[1] = bch2;
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zbottom[0] = bfh1;
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zbottom[1] = bfh2;
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PutPortal(PORTALTYPE_LINETOLINE);
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}
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else if (backsector->e->XFloor.ffloors.Size() || frontsector->e->XFloor.ffloors.Size())
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{
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DoFFloorBlocks(seg, frontsector, backsector, fch1, fch2, ffh1, ffh2, bch1, bch2, bfh1, bfh2);
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DoFFloorBlocks(seg, frontsector, backsector, FLOAT2FIXED(fch1), FLOAT2FIXED(fch2), FLOAT2FIXED(ffh1), FLOAT2FIXED(ffh2), FLOAT2FIXED(bch1), FLOAT2FIXED(bch2), FLOAT2FIXED(bfh1), FLOAT2FIXED(bfh2));
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}
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/* bottom texture */
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// the back sector's ceiling obstructs part of this wall (specially important for sky sectors)
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if (fch1<bfh1 && fch2<bfh2)
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if (fch1 < bfh1 && fch2 < bfh2)
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{
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bfh1 = fch1;
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bfh2 = fch2;
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@ -1684,7 +1661,7 @@ void GLWall::ProcessLowerMiniseg(seg_t *seg, sector_t * frontsector, sector_t *
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FTexCoordInfo tci;
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type = RENDERWALL_BOTTOM;
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gltexture->GetTexCoordInfo(&tci, FRACUNIT, FRACUNIT);
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SetWallCoordinates(seg, &tci, FIXED2FLOAT(bfh), bfh, bfh, ffh, ffh, 0);
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SetWallCoordinates(seg, &tci, FIXED2FLOAT(bfh), FIXED2FLOAT(bfh), FIXED2FLOAT(bfh), FIXED2FLOAT(ffh), FIXED2FLOAT(ffh), 0);
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PutWall(false);
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}
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}
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