#8278 closed patch (wontfix)
new/modified scaler
| Reported by: | (none) | Owned by: | fingolfin |
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| Priority: | normal | Component: | Graphics: Scalers |
| Version: | Keywords: | ||
| Cc: | Game: |
Description
In played a little with the mameadv2x scaler and modified it to add some new features:
-- it removes dither patterns -- it blurs areas with many different colors
Furthermore it shouldn't be much slower than the original scale2x and could possibly be used 2 times in a row as an scale4x scaler.
Therefore I wonder if you could implement this algorithm.
Ticket imported from: #815251. Ticket imported from: patches/383.
Attachments (1)
Change History (9)
by , 21 years ago
| Attachment: | scaler.cpp.txt added |
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comment:1 by , 21 years ago
(This should probably be moved to the patch tracker, but I don't know how to do that.)
Looks like it could be useful for games like EGA Loom. Assigning to Fingolfin since he's done a lot of scaler work lately.
comment:2 by , 21 years ago
| Owner: | set to |
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comment:3 by , 21 years ago
| Owner: | removed |
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comment:4 by , 21 years ago
Some problems with this: * it's not a patch (although I could work around that easily enough) * avg() is slow and only works on 565 modes. Solution: use INTERPOLATE as given in common/scaler/2xsai.cpp * instead of this: avg(col,avg(near1,near2)) use more efficient code. Essentially, you want: Q_INTERPOLATE(col, col, near1, near2) * the scaler function is called AdvMame2x, even though it's *not* AdvMame2x :-)
I can look into applying these changes myself a bit later and test it, and then if the results are OK, we could accept the filter. But since so far I didn't try it, I can't judge how it measures up to other scalers.
comment:5 by , 21 years ago
| Owner: | set to |
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comment:6 by , 21 years ago
I have implemented the algorithm, but I really couldn't find any place where it wasn't beat either by advmame2x, hq2x, or another of the 2x filters. A matter of taste, maybe, but overall we have the policy of not adding any new filters unless they have a very clear advantage in a specific game. That doesn't seem to be the case here.
comment:7 by , 21 years ago
| Resolution: | → wontfix |
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| Status: | new → closed |
comment:8 by , 6 years ago
| Component: | → Graphics: Scalers |
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The code snipet containing the modified scaler