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- fixed: R_InitSkyMap must check for the null texture which cannot be used as a sky because it has no bitmap and will cause an access violation in the sky cap color calculation.

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This commit is contained in:
Christoph Oelckers 2016-10-22 09:57:26 +02:00
parent 5c596d3797
commit 853e49a077
1 changed files with 11 additions and 1 deletions
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12
src/r_sky.cpp
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@ -76,10 +76,20 @@ void R_InitSkyMap ()
int skyheight; int skyheight;
FTexture *skytex1, *skytex2; FTexture *skytex1, *skytex2;
// Do not allow the null texture which has no bitmap and will crash.
if (sky1texture.isNull())
{
sky1texture = TexMan.CheckForTexture("-noflat-", FTexture::TEX_Any);
}
if (sky2texture.isNull())
{
sky2texture = TexMan.CheckForTexture("-noflat-", FTexture::TEX_Any);
}
skytex1 = TexMan(sky1texture, true); skytex1 = TexMan(sky1texture, true);
skytex2 = TexMan(sky2texture, true); skytex2 = TexMan(sky2texture, true);
if (skytex1 == NULL) if (skytex1 == nullptr)
return; return;
if ((level.flags & LEVEL_DOUBLESKY) && skytex1->GetHeight() != skytex2->GetHeight()) if ((level.flags & LEVEL_DOUBLESKY) && skytex1->GetHeight() != skytex2->GetHeight())