Add missing glseg checks (and remove a superfluous one)

src/hardware/hw_bsp.c

@@ -449,8 +449,12 @@ static poly_t *CutOutSubsecPoly(seg_t *lseg, INT32 count, poly_t *poly)
 	// for each seg of the subsector
 	for (; count--; lseg++)
 	{
-		//x,y,dx,dy (like a divline)
 		line_t *line = lseg->linedef;
+
+		if (lseg->glseg)
+			continue;
+
+		//x,y,dx,dy (like a divline)
 		p1.x = FIXED_TO_FLOAT(lseg->side ? line->v2->x : line->v1->x);
 		p1.y = FIXED_TO_FLOAT(lseg->side ? line->v2->y : line->v1->y);
 		p2.x = FIXED_TO_FLOAT(lseg->side ? line->v1->x : line->v2->x);

src/hardware/hw_main.c

@@ -2714,8 +2714,6 @@ static void HWR_AddLine(seg_t * line)
 	static sector_t tempsec;
 
 	fixed_t v1x, v1y, v2x, v2y; // the seg's vertexes as fixed_t
-	if (line->glseg)
-		return;
 #ifdef POLYOBJECTS
 	if (line->polyseg && !(line->polyseg->flags & POF_RENDERSIDES))
 		return;
@@ -3773,9 +3771,12 @@ static void HWR_Subsector(size_t num)
 
 		while (count--)
 		{
+
+			if (!line->glseg
 #ifdef POLYOBJECTS
-				if (!line->polyseg) // ignore segs that belong to polyobjects
+				&& !line->polyseg // ignore segs that belong to polyobjects
 #endif
+				)
 				HWR_AddLine(line);
 				line++;
 		}

src/p_sight.c

@@ -222,6 +222,9 @@ static boolean P_CrossSubsector(size_t num, register los_t *los)
 		fixed_t fracx, fracy;
 #endif
 
+		if (seg->glseg)
+			continue;
+
 		// already checked other side?
 		if (line->validcount == validcount)
 			continue;

src/r_main.c

@@ -698,6 +698,7 @@ subsector_t *R_IsPointInSubsector(fixed_t x, fixed_t y)
 	INT32 side, i;
 	size_t nodenum;
 	subsector_t *ret;
+	seg_t *seg;
 
 	// single subsector is a special case
 	if (numnodes == 0)
@@ -713,10 +714,15 @@ subsector_t *R_IsPointInSubsector(fixed_t x, fixed_t y)
 	}
 
 	ret = &subsectors[nodenum & ~NF_SUBSECTOR];
-	for (i = 0; i < ret->numlines; i++)
-		//if (R_PointOnSegSide(x, y, &segs[ret->firstline + i])) -- breaks in ogl because polyvertex_t cast over vertex pointers
-		if (P_PointOnLineSide(x, y, segs[ret->firstline + i].linedef) != segs[ret->firstline + i].side)
+	for (i = 0, seg = &segs[ret->firstline]; i < ret->numlines; i++, seg++)
+	{
+		if (seg->glseg)
+			continue;
+
+		//if (R_PointOnSegSide(x, y, seg)) -- breaks in ogl because polyvertex_t cast over vertex pointers
+		if (P_PointOnLineSide(x, y, seg->linedef) != seg->side)
 			return 0;
+	}
 
 	return ret;
 }

src/r_segs.c

@@ -309,9 +309,6 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
 	// OPTIMIZE: get rid of LIGHTSEGSHIFT globally
 	curline = ds->curline;
 
-	if (curline->glseg)
-		return;
-
 	frontsector = curline->frontsector;
 	backsector = curline->backsector;
 	texnum = R_GetTextureNum(curline->sidedef->midtexture);