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Just some final cleanup of the code I changed

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This commit is contained in:
Monster Iestyn 2016-05-31 16:08:29 +01:00
parent eb90f4f50d
commit 8b2b49fb04
1 changed files with 18 additions and 41 deletions
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59
src/r_segs.c
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@ -1486,21 +1486,11 @@ static void R_RenderSegLoop (void)
} }
else else
{ {
// note: don't use min/max macros here // note: don't use min/max macros, since casting from INT32 to INT16 is involved here
if (markceiling) if (markceiling)
{ ceilingclip[rw_x] = (yh >= 0) ? ((yl > viewheight) ? (INT16)viewheight : (INT16)((INT16)yl - 1)) : -1;
if (yl >= 0) if (markfloor)
ceilingclip[rw_x] = (yl > viewheight) ? (INT16)viewheight : (INT16)((INT16)yl - 1); floorclip[rw_x] = (yh < viewheight) ? ((yh < -1) ? -1 : (INT16)((INT16)yh + 1)) : (INT16)viewheight;
else
ceilingclip[rw_x] = -1;
}
else if (markfloor)
{
if (yh < viewheight)
floorclip[rw_x] = (yh < -1) ? -1 : (INT16)((INT16)yh + 1);
else
floorclip[rw_x] = (INT16)viewheight;
}
} }
} }
else else
@ -1515,9 +1505,11 @@ static void R_RenderSegLoop (void)
if (mid >= floorclip[rw_x]) if (mid >= floorclip[rw_x])
mid = floorclip[rw_x]-1; mid = floorclip[rw_x]-1;
if (mid >= yl && yl < viewheight) if (mid >= yl) // back ceiling lower than front ceiling ?
{ {
if (mid >= 0) if (yl >= viewheight) // entirely off bottom of screen
ceilingclip[rw_x] = (INT16)viewheight;
else if (mid >= 0) // safe to draw top texture
{ {
dc_yl = yl; dc_yl = yl;
dc_yh = mid; dc_yh = mid;
@ -1527,21 +1519,14 @@ static void R_RenderSegLoop (void)
colfunc(); colfunc();
ceilingclip[rw_x] = (INT16)mid; ceilingclip[rw_x] = (INT16)mid;
} }
else else // entirely off top of screen
ceilingclip[rw_x] = -1; ceilingclip[rw_x] = -1;
} }
else if (yl >= 0)
ceilingclip[rw_x] = (yl > viewheight) ? (INT16)viewheight : (INT16)((INT16)yl - 1);
else else
ceilingclip[rw_x] = -1; ceilingclip[rw_x] = (yh >= 0) ? ((yl > viewheight) ? (INT16)viewheight : (INT16)((INT16)yl - 1)) : -1;
} }
else if (markceiling) // no top wall else if (markceiling) // no top wall
{ ceilingclip[rw_x] = (yh >= 0) ? ((yl > viewheight) ? (INT16)viewheight : (INT16)((INT16)yl - 1)) : -1;
if (yl >= 0)
ceilingclip[rw_x] = (yl > viewheight) ? (INT16)viewheight : (INT16)((INT16)yl - 1);
else
ceilingclip[rw_x] = -1;
}
if (bottomtexture) if (bottomtexture)
{ {
@ -1553,9 +1538,11 @@ static void R_RenderSegLoop (void)
if (mid <= ceilingclip[rw_x]) if (mid <= ceilingclip[rw_x])
mid = ceilingclip[rw_x]+1; mid = ceilingclip[rw_x]+1;
if (mid <= yh && yh >= 0) if (mid <= yh) // back floor higher than front floor ?
{ {
if (mid < viewheight) if (yh < 0) // entirely off top of screen
floorclip[rw_x] = -1;
else if (mid < viewheight) // safe to draw bottom texture
{ {
dc_yl = mid; dc_yl = mid;
dc_yh = yh; dc_yh = yh;
@ -1566,26 +1553,16 @@ static void R_RenderSegLoop (void)
colfunc(); colfunc();
floorclip[rw_x] = (INT16)mid; floorclip[rw_x] = (INT16)mid;
} }
else else // entirely off bottom of screen
floorclip[rw_x] = (INT16)viewheight; floorclip[rw_x] = (INT16)viewheight;
} }
else if (yh < viewheight)
floorclip[rw_x] = (yh < -1) ? -1 : (INT16)((INT16)yh + 1);
else else
floorclip[rw_x] = (INT16)viewheight; floorclip[rw_x] = (yh < viewheight) ? ((yh < -1) ? -1 : (INT16)((INT16)yh + 1)) : (INT16)viewheight;
} }
else if (markfloor) // no bottom wall else if (markfloor) // no bottom wall
{ floorclip[rw_x] = (yh < viewheight) ? ((yh < -1) ? -1 : (INT16)((INT16)yh + 1)) : (INT16)viewheight;
if (yh < viewheight)
floorclip[rw_x] = (yh < -1) ? -1 : (INT16)((INT16)yh + 1);
else
floorclip[rw_x] = (INT16)viewheight;
}
} }
if (floorclip[rw_x] > viewheight)
I_Error("floorclip[%d] > viewheight (value is %d)", rw_x, floorclip[rw_x]);
if (maskedtexture || numthicksides) if (maskedtexture || numthicksides)
{ {
// save texturecol // save texturecol