Verify Ebiten works on Edge

[hajimehoshi]

No description provided.

[otraore]

What are the current problems with internet explorer?

[hajimehoshi]

There is no problem but the priority is low to me :-)

[otraore]

I'm slightly confused, why have an issue with internet explorer if there's no issue with internet explorer?
Edit: Do you mean verify if it works on internet explorer?

[hajimehoshi]

Ah, yeah, I've not tested Ebiten on IE yet, and maybe it doesn't work because of a slightly different web APIs.

EDIT: so the problem is just that "I've not tried".

[otraore]

Suggestion: Change title to "Verify ebitten works on internet explorer" or "Try out ebitten on internet explorer" or something of that nature.

[hajimehoshi]

Makes sense. Thank you.

(BTW, not Ebitten but Ebiten :-)

[martinlindhe]

tested (by visiting the examples in IE Edge),

• there seems to be an issue with font rendering, see screenshots below
• audio doesnt work in "audio" example
• audio works in piano example
• rendering issues in piano example
  otherwise mostly functional

[hajimehoshi]

Thank you! It looks like that alpha blending doesn't work and screen size is strange on your IE. The reasons can be 1) Ebiten's web implementation is not enough, 2) there is a bug in Edge or 3) your machine's graphic card has a problem. WebGL behavior heavily depends on the machine's graphics card, so if there is a strange behavior, there might be the same behavior on native apps. Have you run native Ebiten apps on your Windows?

[martinlindhe]

The same apps look OK in native windows 10, here is screenshots:

[martinlindhe]

Regarding your note of WebGL and drivers.

This is produced by using vmware player, with 3d acceleration pass thru to host os (which is Linux, with ATI drivers). But demos does appear to look correct in the guest windows 10, and on the host Linux using these gfx drivers. (also on the host with gopherjs + webgl)

I do not have access to a "real" windows installation :(

[hajimehoshi]

Thank you for testing! The native apps seem to work correctly.

I've tried VMWare or other VMs and found that there can be 3D graphic problems in a guest OS. Not sure why the problem happens only on Edge (on a guest OS?), but I think Ebiten implementation is not mature for IE/Edge. I'll look at this on a real Windows later.

[hajimehoshi]

Taking care of Edge would make more sense than IE now.

[hajimehoshi]

Tested on Windows Edge on Parallels:

That rendered with a very wrong scale :-(

[hajimehoshi]

Blocked by gopherjs/gopherjs#695

[hajimehoshi]

Next blocker...: gopherjs/gopherjs#688

[hajimehoshi]

Hm, my guess is that Edge doesn't work well with a viewport that size is bigger than the framebuffer. Probably, the viewport size should be always same as the framebuffer size.

Similar problem report: https://msedgeportal.trafficmanager.net/en-us/microsoft-edge/platform/issues/175517/

[hajimehoshi]

Now Ebiten works on Edge!