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| rgareus | ColaEuphoria: no | 00:51 |
|---|---|---|
| rgareus | ColaEuphoria: well, you can hack something up, using a static global variable | 00:51 |
| rgareus | ColaEuphoria: increment it when instantiating the plugin, decrement it when the plugin is destoyed | 00:52 |
| ColaEuphoria | i was afraid i'd need to do that | 00:52 |
| rgareus | ColaEuphoria: I use that approach for fftw thread safety (a static global pthread_mutex) | 00:53 |
| ColaEuphoria | it's just a bit precarious because if the plugin crashes, cleanup() won't be called | 00:53 |
| rgareus | but ideally there'd be no need for this. | 00:53 |
| rgareus | ColaEuphoria: if the plugin crashes you've lost anyway | 00:54 |
| ColaEuphoria | fair enough | 00:54 |
| rgareus | and if the plugin is process-separated in the host (sandboxed) multiple instances won't see each other to begin with. and otherwise crashes will take down the host | 00:55 |
| rgareus | I don't think there is a host that process-separates LV2, Carla maybe, IDK. | 00:57 |
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| brummer | morning all | 08:48 |
| ColaEuphoria | morning | 08:50 |
| brummer | <ColaEuphoria> do you realy need to count instances, or do you just need to ensure you "talk" to the right instance? | 08:59 |
| ColaEuphoria | @brummer: I already implemented the simple global variable counter. I just needed to know if the number of instances was zero so that I could free a global lookup table on cleanup(). | 09:02 |
| ColaEuphoria | Even if freeing 512 bytes worth of lookup is hardly a wash | 09:02 |
| brummer | <ColaEuphoria> ah, okay. | 09:03 |
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| rgareus | ColaEuphoria: what parameters does that LUT depend on? | 12:15 |
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| ColaEuphoria | @rgareus: none; it's a sine wave lookup table | 21:36 |
| rgareus | ColaEuphoria: why not hardcode it? | 21:38 |
| rgareus | ColaEuphoria: as static const float | 21:38 |
| ColaEuphoria | rgareus: i might end up doing that. when i first implemented it, it was more than 16 kB, because i was testing for sound quality before i started optimizing for cache | 21:42 |
| rgareus | 16KB OTOH is also not troublesome to replicate per plugin instance | 21:44 |
| rgareus | ie either hardcode it or don't bother. if 16K are not shared accross multiple instances that's no a big real | 21:44 |
| rgareus | deal | 21:44 |
| rgareus | while optimizations are good (every KB can matter). in reality a user will also load drumgizmo (which loads 2-6 GB of drum-samples into RAM) and a few KB won't matter :) | 21:48 |
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| ColaEuphoria | rgareus: it's no longer 16 kB, i've managed to get it down to 512 bytes and only storing 1/4th the cycle of a sine wave | 21:51 |
| ColaEuphoria | also using 16 bit ints | 21:52 |
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