(resend) programs/winemenubuilder: scale 64x64 classic icons to 48x48 for Icns format

[Ken Thomases]

On Oct 16, 2012, at 2:15 PM, Aric Stewart wrote:

> @@ -1052,6 +1079,7 @@ static inline int size_to_slot(int size)
>          case 16: return 0;
>          case 32: return 1;
>          case 48: return 2;
> +        case 64: return 2;  /* Classic Mode */
>          case 128: return 3;
>          case 256: return 4;
>          case 512: return 5;

If an ICO has both a 48x48 and a 64x64 entry (improbable, I know), then the 48x48 should be preferred.  So, you need additional logic to pick the best index for a slot in platform_write_icon().  Track the best-so-far's width and prefer the smaller.

Beyond that, perhaps the scaling should be put into the ICNS encoder rather than convert_to_native_icon().  That is, if it's handed a size that doesn't fit properly into one of the predefined slots, it would scale down to the next lower size.

Although it might be better to synthesize a 32x32 rather than a 48x48 from a 64x64. *shrug*

-Ken