#2060 closed defect (invalid)
ALL: hq2x / hq3x scalers with / without nasm
| Reported by: | eriktorbjorn | Owned by: | eriktorbjorn |
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| Priority: | normal | Component: | Graphics: Scalers |
| Version: | Keywords: | ||
| Cc: | Game: |
Description
Latest ScummVM CVS snapshot
I don't know if this is a problem with ScummVM or if it's with my build environment, but if I build ScummVM with MinGW and nasm the output from the hq2x and hq3x isn't anywhere near as good as if I build it without nasm, or if I build it with nasm on my Linux box.
The attached picture shows one of the most obvious examples (from Sam & Max) that I've found. The images on the left are from the Windows version, the ones on the right from the Linux version.
If I compile ScummVM with MinGW but without nasm it looks fine. It looks fine with our official Windows releases/snapshots, too. Were they built with or without nasm?
Ticket imported from: #1216262. Ticket imported from: bugs/2060.
Attachments (2)
Change History (20)
by , 19 years ago
| Attachment: | hq-scalers.png added |
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comment:2 by , 19 years ago
| Owner: | set to |
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comment:3 by , 19 years ago
Let me know if there's any further information I could provide. As I said, I was only able to reproduce the problem with the version I compiled myself under Windows, so I'd be overly optimistic if I expected you to be able to easily reproduce the problem.
comment:4 by , 19 years ago
The Windows releases and snapshots are compiled under MinGW, using nasm for the scalers. NASM version 0.98.31 compiled on May 18 2002
comment:5 by , 19 years ago
| Owner: | removed |
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comment:6 by , 19 years ago
Just looked more carefully into this. I see no difference under FreeBSD. NASM version 0.98.35 compiled on Sep 2 2003
comment:7 by , 19 years ago
Just looked more carefully into this. I see no difference under FreeBSD. NASM version 0.98.35 compiled on Sep 2 2003.
Maybe you configured with --disable-hq-scalers?
comment:8 by , 19 years ago
No, I definitely didn't configure with --disable-hq-scalers. If you look closely, you'll see that the images on the left are smoothed, just not nearly as nicely as the ones on the right. This is an extreme example. In the complete screenshot, some parts (Sam's suit, the subtitles, etc.) are nicely smoothed while some (the box, Max, etc.) aren't.
I guess I should look for a pre-built version of nasm. I think I compiled the one I use myself. Maybe something went wrong there, unlikely though it may seem. Or maybe it's the oldish - "3.2.3 (mingw special 20030504-1" - version of GCC that I'm using...
comment:9 by , 19 years ago
The nasm binary I use, is from the SDL homepage. It can be downloaded from http://www.libsdl.org/extras/win32/mingw32/nasm.exe
comment:10 by , 19 years ago
Changing nasm didn't make any difference.
If it only happens to me, and not to our official Windows builds, I guess it's not a big deal.
comment:11 by , 19 years ago
I upgraded to MinGW 3.2.0-rc-3, which among other things includes GCC 3.4.2. This made the problem go away. Closing this bug report, since whatever the problem is it probably isn't with ScummVM.
comment:12 by , 19 years ago
| Owner: | set to |
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| Resolution: | → invalid |
| Status: | new → closed |
by , 19 years ago
| Attachment: | hq3x-comparision.png added |
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Comparision of detail from the Sam & Max intro
comment:13 by , 19 years ago
| Resolution: | invalid |
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| Status: | closed → new |
| Summary: | ALL: hq2x / hq3x scalers with MinGW + nasm → ALL: hq2x / hq3x scalers with / without nasm |
comment:14 by , 19 years ago
Though now it happens on my "unstable" Debian box, which at the moment is running GCC 4.0.1 plus some patches. Reopening - at least temporarily - and attaching a new comparision.
The complete images can be found at
http://www.update.uu.se/~d91tan/IFStuff/hq3x-asm.png http://www.update.uu.se/~d91tan/IFStuff/hq3x-soft.png
Some areas are well smoothed in both screenshots, but some are just slightly blurred in the asm version.
comment:16 by , 19 years ago
| Resolution: | → invalid |
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| Status: | new → closed |
comment:18 by , 6 years ago
| Component: | --Unset-- → Graphics: Scalers |
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Screenshot comparisions