Add suport for more formats about ym2608-tone-editor

[rerrahkr]

Thanks for your request. If it is possible, I'll try to add export features not only import.

[rerrahkr]

Completed by 6c1d4a4. You can also export a tone to .ff and .dmp.

[freq-mod]

Thanks!
Is tone export to .opni/wopn imposible?

[rerrahkr]

I don't implement them now because I don't understand the detailed specifications especially .wopn, but I will try again if possible.

[freq-mod]

I've been thinking about some more obscure bank formats that are supported in OPN2 Bank Editor and if at least import can be implemented here:
GYB banks (.gyb)
GEMS banks (.bnk)

Specs and examples come with a source code.

[rerrahkr]

I added .wopn and .opni export by 39898f0.

[freq-mod]

.wopn export doesn't work correctly - produced .wopn files can't be opened in OPN2 Bank Editor, throwing error about bad file format.

[rerrahkr]

.wopn export doesn't work correctly

I fixed several lines in the source at c214018. Does it solve that?

[freq-mod]

It is still very glitchy, only 1 instrument is present as it should although it is grayed out, don't know why, thre rest is just garbage data repeated over and over
ew3.zip - contain .FF file and wopn created out of it

[rerrahkr]

WOPN_Init is prepared in WOPN library, so I used it in export. At c00325b unused instruments are zero-initialized and only blank instruments are grayed out.

[freq-mod]

It's better, there are no garbage data, but still there is only one instrument even when there are several in the instrument list

[rerrahkr]

Are you selecting only 1 instrument in bank export? Only the instruments selected in the list will be exported as a bank file. To export the entire list, you need to select all instruments.

[freq-mod]

Ah, right, sorry about that. It works fine, then

[rerrahkr]

Added .gyb and .bnk import at b21438f and 03b02ff. I doesn't implement export because this app cannot set the information required to generate these files.

It is a little confusing how to export tones as a bank, so I wrote it in the README.

[freq-mod]

Thanks a lot for all that work!