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(svn r26201) -Fix: unscaling by a negative value is the same as scaling by a positive number

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rubidium 2014-01-02 11:04:37 +00:00
parent 868a67111b
commit fb4db0b022
1 changed files with 1 additions and 1 deletions
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2
src/spritecache.cpp
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@ -162,7 +162,7 @@ uint GetMaxSpriteID()
static bool ResizeSpriteIn(SpriteLoader::Sprite *sprite, ZoomLevel src, ZoomLevel tgt) static bool ResizeSpriteIn(SpriteLoader::Sprite *sprite, ZoomLevel src, ZoomLevel tgt)
{ {
uint8 scaled_1 = UnScaleByZoom(1, (ZoomLevel)(tgt - src)); uint8 scaled_1 = ScaleByZoom(1, (ZoomLevel)(src - tgt));
/* Check for possible memory overflow. */ /* Check for possible memory overflow. */
if (sprite[src].width * scaled_1 > UINT16_MAX || sprite[src].height * scaled_1 > UINT16_MAX) return false; if (sprite[src].width * scaled_1 > UINT16_MAX || sprite[src].height * scaled_1 > UINT16_MAX) return false;