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graphics: imageImpl.restorable might be nil when restoring

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Hajime Hoshi 2017-01-21 05:10:10 +09:00
parent 53952100d3
commit a1885458fb
1 changed files with 3 additions and 0 deletions
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3
imageimpl.go
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@ -220,6 +220,9 @@ func (i *imageImpl) resetPixelsIfDependingOn(target *imageImpl, context *opengl.
func (i *imageImpl) hasDependency() bool {
i.m.Lock()
defer i.m.Unlock()
if i.restorable == nil {
return false
}
return i.restorable.HasDependency()
}