Improve obsolete pipecache handling#21572
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Currently we use `gboolean cache_obsolete` to enforce a complete invalidation of the pipe's cache before the **next** pixelpipe run. We had that for years, it was introduced and required as a workaround while the hash calculation for piece and cachelines were not "complete". Using the flag leads to bad UI response as a reprocessed pipe will never get a cacheline hit. Instead of using a `gboolean` we now have `uint32_t cache_obsolete_order`, defaulting to INT_MAX. If set to anything below, the cachelines with `iop_order >= cache_obsolete_order` will be invalidated before the next pixelpipe run. This allows a finer control for what cachelines shouldn't be used for a cache-hit thus we have a clearly faster response in many situations triggered by the user. Two helpers were modified, both take the iop_order as an extra argument, note that using an iop_order of `0` will do a complete cache flush (as we had with the old gboolean). `void dt_dev_reprocess_center(dt_develop_t *dev, const int32_t iop_order)` `void dt_dev_reprocess_preview(dt_develop_t *dev, const int32_t iop_order)`
jenshannoschwalm
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feature: redesign
1. Request for details mask 2. Selecting a history item in history lib both require cacheline invalidations, simplyfied code in both cases.
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Currently we use
gboolean cache_obsoleteto enforce a complete invalidation of the pipe's cache before the next pixelpipe run.We had that for years, it was introduced and required as a workaround while the hash calculation for piece and cachelines were not "complete". Using this flag leads to bad UI response as a reprocessed pipe will never get a cacheline hit after obsolete.
Instead of using a
gbooleanwe now haveuint32_t cache_obsolete_order, defaulting to INT_MAX.If set to anything below, only the cachelines with
iop_order >= cache_obsolete_orderwill be invalidated before the next pixelpipe run.This allows a fine control for what cachelines shouldn't be used for a cache-hit thus we have a clearly faster response in many situations triggered by the user.
Two helpers were modified, both take the iop_order as an extra argument, note that using an iop_order of
0will do a complete cache flush (as we had with the old gboolean).void dt_dev_reprocess_center(dt_develop_t *dev, const int32_t iop_order)void dt_dev_reprocess_preview(dt_develop_t *dev, const int32_t iop_order)