[webkit-reviews] review granted: [Bug 52162] Implement CSS3 Images cross-fade() image function : [Attachment 115308] Render Cross-Fade (Windows build fix, hopefully)

[bugzilla-daemon at webkit.org]

Simon Fraser (smfr) <simon.fraser at apple.com> has granted Tim Horton
<timothy_horton at apple.com>'s request for review:
Bug 52162: Implement CSS3 Images cross-fade() image function
https://bugs.webkit.org/show_bug.cgi?id=52162

Attachment 115308: Render Cross-Fade (Windows build fix, hopefully)
https://bugs.webkit.org/attachment.cgi?id=115308&action=review

------- Additional Comments from Simon Fraser (smfr) <simon.fraser at apple.com>
View in context: https://bugs.webkit.org/attachment.cgi?id=115308&action=review


> LayoutTests/css3/images/cross-fade-tiled.html:9
> +	-webkit-transform:translateZ(0);

Why the translateZ()?

> Source/WebCore/css/CSSCrossfadeValue.cpp:42
> +CachedImage* cachedImageForCSSValue(PassRefPtr<CSSValue>, const
RenderObject*, const IntSize&);
> +void loadSubimage(PassRefPtr<CSSValue>, CachedResourceLoader*);
> +bool subimageIsPending(PassRefPtr<CSSValue>);

You could just move the functions to the stop of the file and make them static.


> Source/WebCore/css/CSSCrossfadeValue.cpp:62
> +    IntSize size;
> +
> +    CachedImage* fromImage = cachedImageForCSSValue(m_fromImage, renderer,
size);
> +    CachedImage* toImage = cachedImageForCSSValue(m_toImage, renderer,
size);

Seems weird to send in an empty size here.

> Source/WebCore/css/CSSCrossfadeValue.cpp:85
> +bool subimageIsPending(PassRefPtr<CSSValue> value)

You should only use PassRefPtr<CSSValue> if you're passing ownership, which
doesn't seem to be the case here. Can you pass a const CSSValue*?

> Source/WebCore/css/CSSCrossfadeValue.cpp:98
> +void loadSubimage(PassRefPtr<CSSValue> value, CachedResourceLoader*
cachedResourceLoader)

Ditto.

> Source/WebCore/css/CSSCrossfadeValue.cpp:113
> +CachedImage* cachedImageForCSSValue(PassRefPtr<CSSValue> value, const
RenderObject* renderer, const IntSize& size)

Ditto.

> Source/WebCore/css/CSSCrossfadeValue.cpp:115
>      UNUSED_PARAM(size);

Are you going to use size?

> Source/WebCore/css/CSSCrossfadeValue.h:65
> +    // NOTE: We put the ImageObserver in a member instead of inheriting from
it

No need for "NOTE:".

> Source/WebCore/platform/graphics/CrossfadeGeneratedImage.cpp:76
> +    context->beginTransparencyLayer(1.0);

1.0 -> 1

> Source/WebCore/platform/graphics/CrossfadeGeneratedImage.h:62
> +    CachedImage* m_fromImage;
> +    CachedImage* m_toImage;

I'd like to see a comment about who owns these CachedImages.