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added a check to avoid creating a new bitmap struct (so caching works better when you flip images that are not scaled)

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Robby Findler 2010-10-14 14:04:22 -05:00
parent 4311a5e5d6
commit 1d0ebeae62
1 changed files with 12 additions and 8 deletions
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20
collects/mrlib/image-core.rkt
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@ -557,14 +557,18 @@ has been moved out).
(text-weight shape) (text-weight shape)
(text-underline shape))] (text-underline shape))]
[(flip? shape) [(flip? shape)
(let ([bitmap (flip-shape shape)]) (cond
(make-flip (flip-flipped? shape) [(and (= 1 x-scale) (= 1 y-scale))
(make-bitmap (bitmap-raw-bitmap bitmap) shape]
(bitmap-raw-mask bitmap) [else
(bitmap-angle bitmap) (let ([bitmap (flip-shape shape)])
(* x-scale (bitmap-x-scale bitmap)) (make-flip (flip-flipped? shape)
(* y-scale (bitmap-y-scale bitmap)) (make-bitmap (bitmap-raw-bitmap bitmap)
#f #f)))])) (bitmap-raw-mask bitmap)
(bitmap-angle bitmap)
(* x-scale (bitmap-x-scale bitmap))
(* y-scale (bitmap-y-scale bitmap))
#f #f)))])]))
(define (scale-color color x-scale y-scale) (define (scale-color color x-scale y-scale)
(cond (cond