Topic: Playing subtunes (solved)

[saga]

Is there a way to locate subtunes in modules? Or do I have to set the MOD position manually to that pattern?

[Ian @ un4seen]

BASS won't automatically locate subsongs, but I recall the question has come up before in the dim and distant past, and I'm pretty sure I posted a way to detect subsongs (by scanning the orders played via a MUSICPOS sync on a decoding channel). I think there were others, but the only post I can find right now is this one...

   www.un4seen.com/forum/?topic=2650.msg17705#msg17705

You will indeed have to set the position (via BASS_ChannelSetPosition) to the subsongs manually, however you locate them

[saga]

heh, that looks a bit clumsy, but I'll try it nevertheless. how can i manage that the module is not played in realtime for this task?

Another idea: Is there a way to detect those "there is no pattern right here" patterns (i don't mean the "+++" placeholders which exist in s3m and it, but "---")? i'm using those as seperators for my subsongs right now, so that would actually be the best method.

[saga]

hm, i see now that channelsetposition will return zero if there's a "---" order. i will use that as a subtune detector!

[saga]

hm okay, obviously BASS doesn't distinguish between "+++" placeholders and "---" empty patterns.
I'm used to using placeholders for structuring my tunes, so I wonder whether it is possible to find out which of the two is actually at the current position...? For example by returning different error messages?  Another nice thing would be a function to read the order list...

[Ian @ un4seen]

heh, that looks a bit clumsy, but I'll try it nevertheless. how can i manage that the module is not played in realtime for this task?

In order to perform the task as quickly as possible, you would use a decoding channel (see the BASS_MUSIC_DECODE flag).

hm okay, obviously BASS doesn't distinguish between "+++" placeholders and "---" empty patterns.
I'm used to using placeholders for structuring my tunes, so I wonder whether it is possible to find out which of the two is actually at the current position...? For example by returning different error messages?  Another nice thing would be a function to read the order list...

Here's an update to try...

   www.un4seen.com/stuff/bass.dll

It adds the following BASS_ChannelGetTags option to retrieve the order list...

Code: [Select]

#define BASS_TAG_MUSIC_ORDERS 0x10002 // MOD order list : BYTE array of pattern numbers

Pattern number 254 is "+++" and 255 is "---". You can use BASS_ChannelGetLength (BASS_POS_MUSIC_ORDER) to get the length of the array.

This update should also allow seeking to "+++" positions (row 0 only), but not "---" positions.

[saga]

that sounds pretty interesting. i've came up with the solution to use two invalid patterns instead of one, but this is far more nifty and I won't forget to add patterns that way. Ta!

[saga]

Hmm.... Strange. Now I tested the whole thing (seeking through the orders to look for "---" items) in the linux version of my game, and strangely, it only finds the first tune in the module. Did you incorporate these changes into the latest linux beta as well?
EDIT: nvm, I can't recall having changed anything, but it's working again.