Re: [PATCH 0/2] MR7938: Draft: winemac: Use IOSurface to update native window layers instead of CGImage.

[Brendan Shanks (＠bshanks)]

Brendan Shanks (@bshanks) commented about dlls/winemac.drv/cocoa_window.m:
> {
>      WineWindow* window = (WineWindow*)w;
> - CGImageRetain(image);
> -
>
> IOSurfaceIncrementUseCount(image);
>
> OnMainThreadAsync(^{
>     WineContentView *view = [window contentView];
> -
>    [view setColorImage:image];
> -
>    [view setIOSurface:image];
>    [view setSurfaceRect:cgrect_mac_from_win(rect)];
>    [view setNeedsDisplayInRect:NSRectFromCGRect(cgrect_mac_from_win(dirty))];
>
> -
>    CGImageRelease(image);
> -
>    IOSurfaceDecrementUseCount(image);

I think this should be `CFRetain`/`CFRelease` rather than use count, use count seems to be for knowing when an IOSurface can be reused rather than for memory management.

https://github.com/k06a/UIView-FastScreenshot/blob/de71c02b61e59dadde3387491...