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Fix crash caused by drawing scaled, mirrored sprites semi-covered on the left side by portal edge

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I suspect this crash was possible even outside the context of portals, but whatever
This commit is contained in:
Monster Iestyn 2016-02-13 18:11:50 +00:00
parent 62d15e54e8
commit dabc4415af
1 changed files with 3 additions and 3 deletions
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6
src/r_things.c
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@ -839,10 +839,10 @@ static void R_DrawVisSprite(vissprite_t *vis)
dc_texturemid = FixedDiv(dc_texturemid,this_scale); dc_texturemid = FixedDiv(dc_texturemid,this_scale);
//Oh lordy, mercy me. Don't freak out if sprites go offscreen! //Oh lordy, mercy me. Don't freak out if sprites go offscreen!
if (vis->xiscale > 0) /*if (vis->xiscale > 0)
frac = FixedDiv(frac, this_scale); frac = FixedDiv(frac, this_scale);
else if (vis->x1 <= 0) else if (vis->x1 <= 0)
frac = (vis->x1 - vis->x2) * vis->xiscale; frac = (vis->x1 - vis->x2) * vis->xiscale;*/
sprtopscreen = centeryfrac - FixedMul(dc_texturemid, spryscale); sprtopscreen = centeryfrac - FixedMul(dc_texturemid, spryscale);
//dc_hires = 1; //dc_hires = 1;
@ -1306,7 +1306,7 @@ static void R_ProjectSprite(mobj_t *thing)
} }
if (vis->x1 > x1) if (vis->x1 > x1)
vis->startfrac += vis->xiscale*(vis->x1-x1); vis->startfrac += FixedDiv(vis->xiscale, this_scale)*(vis->x1-x1);
//Fab: lumppat is the lump number of the patch to use, this is different //Fab: lumppat is the lump number of the patch to use, this is different
// than lumpid for sprites-in-pwad : the graphics are patched // than lumpid for sprites-in-pwad : the graphics are patched