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add more safety
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parent
4df9749570
commit
e3c42b3ba2
1 changed files with 7 additions and 3 deletions
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@ -481,7 +481,7 @@ static void FreeMipmapColormap(INT32 patchnum, void *patch)
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{
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GLPatch_t* const pat = patch;
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(void)patchnum; //unused
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// The patch must be valid, obviously
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if (!pat)
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return;
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@ -498,19 +498,23 @@ static void FreeMipmapColormap(INT32 patchnum, void *patch)
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if (!pat->mipmap)
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break;
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// No colormap mipmap either.
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// No colormap mipmaps either.
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if (!pat->mipmap->nextcolormap)
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break;
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// Set the first colormap to the one that comes after it.
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next = pat->mipmap->nextcolormap;
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if (!next)
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break;
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pat->mipmap->nextcolormap = next->nextcolormap;
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// Free image data from memory.
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if (next->grInfo.data)
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Z_Free(next->grInfo.data);
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next->grInfo.data = NULL;
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// Free the old colormap from memory.
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// Free the old colormap mipmap from memory.
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free(next);
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}
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}
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