allow_upscale not working since v0.12.0

[bastrapp]

Since the update to v0.12.0 (and imagine 0.5) the allow_upscale option is not working anymore. Pictures smaller than the filter size are not blown up to fit the dimensions. With v0.11.1 it is still working.

[ryall]

It seems to be because of this change in Imagine: https://github.com/avalanche123/Imagine/blob/v0.5.0/lib/Imagine/Imagick/Image.php#L392-L394

[havvg]

Well, this seems to be an issue with Imagine release versioning?

[ryall]

I think the library logic has just changed to not allow upscaling in the Imagine library (quite rightly I think as using 'thumbnail' for upscaling seems kind of strange).

Maybe a new filter upscale: { min-width: 100, min-height: 100 } is needed so it can be applied before the thumbnail filter.

[havvg]

There already is: RelativeResize should do the trick?

[ryall]

RelativeResize assumes knowledge of which dimension is bigger (width or height) if I'm not mistaken. For example, a 50x100 image with heighten: 100 would still not force the image to fit 100x100.

[smilesrg]

Is it possible to add parameters for upscale like max[x,y], exact[x, y] and crop? Because currently it is not possible to upscale rectangle image to square using upscale.