mirror of https://github.com/bsnes-emu/bsnes.git
151 Commits
| Author | SHA1 | Message | Date |
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byuu
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dd83559786 |
Update to bsnes v034 release.
For this release: SPC7110 emulation speed has been greatly optimized, massive improvements to HDMA timing have been implemented, Multitap support was added, and the user interface was polished a bit more.
Changelog:
- SPC7110 decompression code updated to latest version by neviksti and converted to a state machine; SPC7110 overhead is now identical to S-DD1 overhead (eg ~5% speed hit over standard games)
- Fixed a major bug in SPC7110 data port emulation that was crashing Super Power League 4 [Jonas Quinn]
- HDMA trigger point corrected to H=1104, bus sync timing corrected
- All illegal DMA A-bus accesses should now be properly blocked
- DMA state machine rewritten, greatly simplified
- Major corrections to HDMA run timing; fixes flickering bugs in Mecarobot Golf and Super Mario Kart
- Emulator now defaults to 2/1/3 SNES (CPU/PPU1/PPU2 revision numbers)
- Multitap emulation added, can be attached to either or both controller ports; user interface updated to reflect this
- Status messages (cartridge loaded / unloaded, UPS patch applied, etc) now appear in status bar
- Added advanced configuration option, "input.analog_axis_resistance", to control gamepad analog stick sensitivity
Also, the SPC7110 emulator download link below was removed: if you are looking for this, please download the bsnes v034 source code, which has the most up-to-date version in the src/chip/spc7110 folder.
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byuu
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100ef3a271 |
Update to bsnes v033r09? release.
New WIP, probably not worth downloading. For the sake of completeness, I finished optimizing the SPC7110 code. I've converted the pixel buffer rotation from swaps to moves, which should double the speed of the slowest part. I've also added reverse morton lookup tables (2x8-bit and 4x-8-bit deinterleaving), which are 8-10x faster than doing it using pure bit logic, I removed the redundant comparisons from the pixel context lookup (though a compiler would've done the same anyway), and lastly I've cut the mode2 context table in half, since the refcon add bit was only set on context 1 anyway. I could've replaced the other half with 5-6 if/else statements, but I didn't see much of a point in that since it'd only make the code harder to understand. That results in a 1-2fps speedup, at best. Really, the code is simply not a bottleneck. It's pointless to optimize anymore, as any changes from this point on will just make it harder to understand what's happening. I only added the morton tables because it does seem to aid readability. Also added translate[] wraps around all the new status messages, and moved the two checkbox options on the paths window to the advanced options list. No sense cluttering up the UI with near-useless settings. > It's hard going back to "Are you sure you'd like to exit?", no > multiplier eyeball stretching, etc. Heh, yeah. I never understood the floating point multiplier setups in some emulators. I guess it's useful if you want your video output size to be π x _e_. I thought about the "Are you sure?" thing, it'd be nice if you accidentally close the emulator, so you don't lose your save. But I quickly realized that despite using emulators for ten years, I've never _once_ actually done that. The only point where it might be appropriate is if I add mouse / SS support, since you may want to have the cursor near the top right of the window with the menubar off in windowed mode (though you're just asking for trouble at that point, honestly.) To be fair though, you helped design at least half the bsnes GUI, so obviously you should like it :P > I should offer a bounty at this point to anyone who can find another > bug that isn't PPU based. Super Power League 4 seems to die after an inning or two with a S-SMP crash. I still need to try screwing with the CPU/SMP scalars and try substituting with anomie's DSP core to see if it still dies. If neither of those affect it, it could very well be due to a timing issue with not emulating the delays of the SPC7110 chip or something. If someone wants to rule out the DSP core, they could try playing a SPC dump from the game in one of the plugins that use blargg's core. I doubt it's that, personally. The usual rules about special chips apply, but you can list it as a bug if you like. I probably will with a note. Maybe I can figure it out before release. Probably not, but who knows. Sigh, it's always the god damn baseball and golf games, isn't it? I'd probably half-ass the game too, if it were my job to work on one. > Two minor things that have probably been forgotten in all this > excitement that could make the next release: libui is still not > changed to "hiro" in the license, both online and text based. And > mudlord wanted to be added to the contributors for his OpenGL stuff. Ah, thanks. Updated the license file. Decided against listing all the libraries there for now, as they're getting quite numerous. As for credits, mudlord is already listed in the source file, and the contributors list is for people who have submitted code to the core of the emulator. It's not a good system, I admit. That obviously excludes you and tetsuo55, despite the fact that your testing has been one of the most helpful things I've received. It's not that I mind listing people, but I don't want that window to become cluttered with 100+ names of everyone up to and including people pointing out spelling mistakes in WIPs. That would make the window really onerous to look at. I really don't want to come off as rude here, I'm really truly grateful to everyone who has helped out even a little, and I'm happy to thank them all in some perpetual fashion (eg website thank yous tend to disappear as the news falls off the page.) That's the second time someone's brought that list up. I was afraid that adding such a list would just end up causing problems. Maybe I should just remove the contributors list on the about screen, and put everyone in the readme.txt file, so that everyone who ever contributed anything is listed? [No archive available] |
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byuu
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bccc5b5a12 |
Update to bsnes v033r08? release.
I wish I could post the new WIP, I really need it tested. But it looks like vstech.net (cinnamonpirate.com's host) got sucked into a black hole, literally. You can't even nslookup it. So ... sorry. What I did today was: - remove an unnecessary ternary condition in HDMA CPUsync (no visible effect on emulation or speed.) - move controller ports from settings to system. - rewrite SPC7110 decompression engine from scratch. The last one obviously the most important. I took neviksti's most recent decompressor code, made the essential variables static, added a bool init parameter you can use to start a new decompression sequence, and built up a dual-indexed (read+write cursor) ring buffer to stream byte sequences. I set the buffer to >= 32 bytes at a time. I also simplified a few parts, like the swap sequence for pixel ordering; and I took out the end of each function that computes length, since that's no longer needed (nor is bot.) The result is you can stream an infinite number of bytes safely from decompression, and nothing will ever go out of bounds of the data ROM. Speed results on Core 2 Duo E6600 @ stock 2.4GHz: FEoEZ cart riding sequence - 91fps (was 40fps) MDH title screen - 111fps (was 29fps) SPL4 title screen with players running across screen - 118fps (was 35fps) For comparison, Star Ocean in-game gets ~95fps. I didn't think we would need that many optimizations to get SPC7110 support running at full speed (how complex could a low-cost IC from 1995 be?), good to see I was right. As soon as vstech comes back (hopefully tomorrow), I'll post the PD / BSDL source, and get it sent over to GIGO. Hopefully he can add it to SNESGT. Speaking of which ... neviksti: In your updated DecompMode0.c file, you declare NUM_CONTEXTS as 15, but it should be 30. I'm guessing it runs fine in isolation (memory initializes to zero and all that), but when mode 2 ran and set contexts up to 32; only clearing 15 was resulting in corrupted graphics all over. No big deal, just mentioning it. > I don't really understand your (or byuu's) point. If the game does > indeed works on 99.9% of units...on what do you base yourself to say > their programming suck or that the game is "broken"? I mean, it > works, it works right? This is the problem I have with the black-and-white "bug" label ... it implies a game is broken to a casual observer, or there is at least noticeable corruption on at least one screen. In truth, bsnes has a few visible bugs. Street Racer will flicker one frame on the title screen, but only one time, and only once every ~4-8 runs. Adventures of Dr Franken and Winter Olympics show one black scanline because the games update OBSEL at very unusual points mid- frame. And there are countless "anti-bugs", eg Battle Blaze on the fighter select screen is supposed to show some garble up at the top due to mid-scanline PPU writes. Because bsnes renders an entire scanline at once, you don't see this. Lots and lots of games will have 1-16 pixels on one scanline at the left (usually not even visible on TVs) that flicker due to writing PPU regs past the end of hblank. BoF2 German detects emulators by reading the division register early. Since no emulator supports that, you don't see the anti-piracy splash screen. All of those could be considered bugs to varying degrees. I suppose what would be nice is a bug severity ranking system. "Severe" if it's game ruining, "Moderate" if it's more than one scanline / frame that glitches graphics or something, and "Minor" for the stuff 95% of people probably won't even notice. Or something like that. My point is that it doesn't make a lot of sense to work on the minor stuff. Most of that will probably go away with a cycle-based PPU anyway, and the rest will probably continually appear and disappear with infinitesimal timing changes. [No archive available] |
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byuu
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acee547da9 |
Update to bsnes v033r07? release.
And another one. I've re-written the DMA state machine. I decided to keep it in one FSM instead of two separate ones, because they honestly share so much. But I rewrote it to be a lot cleaner, and to handle some really exceptional edge cases. Due to the design, I was even able to make the HDMA during DMA edge case "transparent", eg the same codepath is used for normal HDMA and for HDMA during DMA :D New WIP passes the last four tests in test_hdmatiming.smc. The ROM posted doesn't validate the last four yet, so you have to compare the SRAM file to the source logged values if you care to. That should be everything with DMA and HDMA timing now, thankfully. Really happy with that codepath for the very first time. Such an improvement from the "don't even worry about HDMA syncing" code I had a few versions ago. I also reduced the DRAM refresh rotation from 7-lines of code testing against the NTSC color burst case to 1-line, using the DMA counter (dram_refresh_pos = 530 + 8 - dma_counter()) Lastly, I added a flush command to the status bar. Any important messages will now flush all buffered ones to display the new one. Eg load 10 games back-to-back and it'll say the name of the new game immediately, instead of scrolling through the other 9. It will still buffer lesser important ones, like unsupported chip and UPS patch applied messages. I also removed config / locale path display, because it annoyed me. Nearing a release. I want to state machine neviksti's SPC7110 decompression code, and I should be ready on my end. FitzRoy, I'll give you the final word. If you want controller port selection moved to "System", I'll do so. Any show stoppers should be mentioned now. I can't fix the "crash with Unicode characters in the executable path" issue just yet, so that'll have to wait. [No archive available] |
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byuu
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b1b146fd7d |
Update to bsnes v033r06? release.
New WIP. Adds some more HDMA timing improvements, DMA bus hold simulation, and hopefully proper detection for ST011, which should mean that every unsupported game will now notify you of that fact. Also, I finally got around to writing that status bar message queue system I mentioned a long time ago. Should make Deathlike happy. It'll tell you whenever any UI event occurs (load, unload, reset, power cycle, UPS patch applied, unsupported chip detected, config file / locale file load, etc.) Obviously if you turn off the status bar, you won't see them. Not a problem for me personally: if you want to see status messages, leave it on. With that, I removed the annoyingly bland message window, and muted the terminal message printing, putting it all inside the statusbar instead. I also got rid of some now-unused config variables, misc.status_text (it was kind of overkill to let that be customizable) and cpu.hdma_enable (it's always enabled now.) Opinions on the new status bar system welcome. I've also set the SNES to report itself as 2/1/3, rather than 1/1/1. Since I don't emulate things like the HDMA conflict crash, I figured I may as well set it to the CPU revision that doesn't have it. > Probably the best it's ever been, but Street Racer's track does > still flicker on "Head to Head" mode. With the above changes, I was able to eliminate the flicker in-game in all modes, as well as get rid of it ~80+% of the time on the title screen. Only once every ~5 restarts will you see it for _maybe_ one frame. That's really the best I can do, I'm afraid. It's so subtle I doubt anyone will even notice it now. Like Winter Olympics and Adventures of Dr Franken, I'm not going to consider it an active bug (yes, how convenient), but I'll watch the game closely with future timing changes. Hopefully it'll go away entirely with more refinements in the future. [No archive available] |
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byuu
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53e913e225 |
Update to bsnes v033r05? release.
New WIP.
After some more hardware testing, it seems my theory from before was
correct. See the HDMA thread for more info if you care.
With those changes plus a few others, I'm now able to get everything
in my "known troublesome" games list to work properly and with no
flickering:
- Breath of Fire 2 (G)
- Earthworm Jim 2 (U+E)
- Energy Breaker
- Jumbo Osaki no Hole in One
- Mecarobot Golf
- Secret of Mana
- Street Racer
- Super Mario Kart
I still can't get Street Racer to flicker, maybe you guys can?
Hopefully not, such a hard-to-trigger bug will be even harder to
debug.
Image
(ignore the framerate, from a pause/resume screen capture.)
And fucking _hell_ that game is hard.
Note that to get BoF2 (G) to work, I had to modify S-SMP cycle timing
from 32040hz*768 to 32041hz*768. It seems the game is very sensitive
to S-CPU <> S-SMP timing, and the improved HDMA timing was just
unlucky enough to just _barely_ miss the handshake. This was further
compounded by there being no input before the point in question to
vary timing.
It's not really a problem with the game itself -- d4s really pushed
the limits of these two chips to pull off that impressive intro. It
was more that I was hitting an extremely tiny window of time that
caused a deadlock.
This timing change only affects S-CPU <> S-SMP communications (eg
handshakes and such), and not timing inside each individual processor.
Recall that both processors in both regions (NTSC and PAL) have
slightly different timings, and the exact timings vary even on real
hardware, as the crystal clocks used are not perfect.
The NTSC S-SMP has been observed at ~32040hz on an oscilloscope by the
guy at alpha-ii.com, which is faster than the stock speed of ~32000hz.
But we still use stock speeds for the S-CPU because that's all we
have. Changing the S-CPU speed a bit would've fixed this as well.
So yeah, the fix is a bit of a kludge, but it's the best I can do when
the problem is in communication between the two chips.
Keep in mind that the S-SMP clock rates are cached in the config file.
You'll either need to delete it, or reset the values to the default in
the advanced panel. Otherwise the game will hang on first run.
Also, I tightened DMA transfer restrictions even more. A-bus accesses
to $4200-421f and $4016-4017 are now blocked. And I also block these
during HDMA line counter / indirect address fetches (as observed on
hardware.) Further, I was previously allowing invalid B->A transfers
to still write the the MMIO reg specified in A, but ignoring the B-bus
read. This seemed wrong: not being able to access the reg should mean
not being able to access it period, so I swapped that around.
Shouldn't affect any known games, but mentioning it just in case.
> Perfect timing matching isn't needed, the games are broken if they
> can't take a normal sized delay for this.
Mortal Kombat II breaks if you're exactly 6 cycles off from expected
timing (but works if you're more than six cycles off.) Jumbo Osaki was
failing by 20 cycles. Wild Guns fails if off by two cycles. A couple
other games were the same. There are roughly _21 million cycles_ in a
second.
Death Brade and some European racing game break if _uninitialized RAM_
doesn't return the values they like.
Uniracers is quite simply _beyond_ broken.
I wish I could get away with just saying the games themselves were
broken (and they are), but when it runs at least 99% of the time on
hardware, you can't use that as an excuse. Everyone will still call it
an emulation bug :(
> Err, not really. Fixed delay for all operations is as dumb as no
> delay for all operations.
I typically like the idea of emulating as much as we can ("building
blocks" and such), if that means guessing approximate delays, so much
the better. But for the DSP-1, adding any delays is even worse in my
opinion. Why?
First, the delay lengths will no doubt vary depending upon how complex
the transfer is. Second, emulating the delays would force us to
implement the DSP-1 as the dedicated processor that it is: thusly, its
overhead would soar from barely noticeable to nearly as intense as
SuperFX / SA-1 emulation. Third, it may be possible to read partially
computed results before the operations finish. We can't even figure
out the partial computations of mere _unsigned multiplication and
division_ in the S-CPU core, so how the hell would we ever plan to
figure out attitude / altitude calculations?
The only feasible way we're going to get this right is to dump the
program ROM and then emulate the instruction set. Even decapping the
DSP-1 has been no help for that, and even if by some miracle we got
the ROM, we'd have to figure out the instruction set and timing with
no documentation. And all of this to improve emulation of a couple of
lackluster action games. Good luck finding someone willing to do all
that for free, and just to end up getting ~90% of people bitching that
suddenly DSP-1 emulation is as demanding as SFX emulation, yet
provides no visible improvement over existing emulation. And it even
requires another DSP1program.rom file that they didn't need before!
Thus, it's really not worth the effort if our entire model of
emulating the chip is busted in such a manner that we couldn't improve
it more even if we wanted to anyway.
[No archive available]
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byuu
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0cf16ce784 |
Update to bsnes v033r04? release.
Posted a new WIP which can pass the test_hdmasync ROM I posted in the other thread. Please note that it's currently throwing off Jumbo Osaki exactly 50% of the time. I'll look into it over the weekend. But the change I've made is correct, so if I can't fix these, the games stay broken :/ One of the most unfortunate parts of emulation: when a game works because two things are bad, but no longer when only one thing is bad. [No archive available] |
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byuu
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ce38d577ef |
Update to bsnes v033r03? release.
New WIP posted. It adds my new findings on HDMA, which I've posted here: http://board.zsnes.com/phpBB2/viewtopic.php?t=11804 This effectively fixes Mecarobot Golf once and for all. Interestingly enough, it also eliminates the track line flickering in Super Mario Kart. Image What a boring screenshot ... I've tested for regressions with Battle Blaze, Battletoads, Battletoads & DD, Breath of Fire 2 German, Circuit USA, Der Langrisser, Energy Breaker, Earthworm Jim 2 (USA and EUR), F1 Grand- Prix, FF: Mystic Quest, Mortal Kombat I & II, Jumbo Ozaki no Hole in One, Secret of Mana and Street Racer. Basically, all the usual HDMA suspects. Looks good to me. Let me know if you guys find any new regressions, though. [No archive available] |
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byuu
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0a87b99370 |
Update to bsnes v033r02? release.
Alright, then. This was the new feature from the last WIP: Image Multitap support for Nach and tetsuo55 :) New WIP up as well. This one adds Pogo's request, there's a new config variable named input.analog_axis_resistance. The setting works both for the DirectInput/Windows and SDL/Linux drivers. It used to be 75% on Windows, 50% on Linux. Now it defaults to 50% on both platforms. If any of you guys have an analog stick and want to come up with a better default value, please feel free. I wasn't able to pull off Ryu's spinning kick thing very easily at 75%, for instance. > The WIPs are private. Most of the people with access got it two > years ago. I used to give out access to anyone who found a new emulator bug in a public release, but that's not working so well anymore ... Eventually I'd like to get a system set up where anyone can get access, yet avoid having the WIPs leak. I really don't want to bother emu news site readers with daily WIP updates that change ~3kb of code. [No archive available] |
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byuu
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82d5761705 |
Update to bsnes v033r01? release.
Alright, new WIP. Added a new feature so people will stop _harassing_ me about it :P Try and guess what it is. [No archive available] |
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byuu
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9133129209 |
Update to bsnes v033 release.
This release adds SPC7110 emulation, without the need for graphics packs!!, and a rewritten S-RTC (real-time clock) emulator. SPC7110 support means that Far East of Eden Zero, FEoEZ: Shounen Jump Edition, Momotarou Dentetsu Happy and Super Power League 4 are now all fully playable. I will warn you, the emulation is very slow in this version -- while most areas of each game will run at the same speed as other games, there are a few peak moments where speed will drop by up to ~50%. The reason for the slow-down is that I am currently uncertain how to determine the amount of data to decompress in advance, so I default to the maximum amount possible. The reason I am releasing now anyway, is because I beleive in the "release early, release often" paradigm. It will likely take me a few weeks to finish researching this chip, and I didn't want to keep the work I had private during that time. But rest assured, bsnes v034 should feature much faster SPC7110 emulation. neviksti, Andreas Naive and jolly_codger worked non-stop on the SPC7110 decompression algorithm for the past two weeks. caitsith2 provided valuable data to the effort. I only wish that I could've been of some use, but alas, I had no role in this. In the end, it was neviksti who managed to crack all three(!!) compression modes of this chip, which turned out to be a customized 8-bit QM-coder with a prediction model. You can read more about this here. I would also like to thank Dark Force and John Weidman (aka The Dumper) for their research notes on the SPC7110 register interface. For those who don't understand the hoopla about figuring out this compression algorithm when we already had graphics pack simulation, I should note that we have since found a few errors in these packs. Not to mention, you no longer need ~4-16MB packs for each game you wish to run. They work like any other game now. Better still, the chip can now be used to compress new graphics, eg for any future translation efforts on these titles. The real-time clocks in both Far East of Eden Zero and Dai Kaijuu Monogatari 2 will now save a ".rtc" file in your save folder, which contains the clock as set by the video game, as well as a timestamp from your computer when the time was last updated. It uses the difference between the saved timestamp and current time to update the time. This allows you to specify any time you like, whereas previously bsnes would just use your computer's current time, ignoring the time you set in-game. It also allows the "round clock by 30 seconds" option in both games to work. I avoided this before because this method makes supporting daylight savings time and such impractical, although I should note that the original hardware did not support DST, either. This method was required to pass the SPC7110 tests, and is overall much more faithful to how the original chips worked. Once again, I'd really like to personally thank neviksti for his tireless efforts. Eliminating graphics packs from SNES emulation was one of my primary reasons for getting involved in the SNES emulation scene. That neviksti managed to crack this algorithm means a lot to me. Thank you so much, neviksti. This release is dedicated to you, now go get some sleep Wink |
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byuu
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7d83cde40a |
Update to bsnes v032r01? release.
This worked great, thank you. libao is now tolerable on ALSA. Now I just need to add support for disabling "Audio::Synchronize" (by disabling sound output, since libao is a blocking API.) --- EDIT: posted a new WIP, with RedDwarf's ALSA and libao fixes. Both work very well for me, your mileage may vary. No Windows binary, as it would be exactly the same as v032a, anyway. This one's mainly for Linux users who can compile from source. [No archive available] |
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byuu
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bbc77a6cf2 |
Update to bsnes v032a release.
- Windows: file open filters are now working once again
- All ports: emulation speed setting is now properly restored at startup
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byuu
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ebb9367c68 |
Update to bsnes v032 release.
- Core: simplified CPU / SMP flag calculations
- Added ALSA audio output driver to Linux port [Nach]
- Improved font handling for Windows and Linux ports
- Greatly cleaned up the user interface
- Windows port now uses Unicode instead of ANSI
- Added localization support
- Config and locale files can now be placed inside bsnes executable directory for single-user mode, if desired
- Fixed crashing bug with HQ2x on Linux/amd64 port [RedDwarf, Nach]
- Hid "Power Cycle" option by default, as it is too similar to "Reset"
- Slighty tweaked program icon [FitzRoy]
- Minor code cleanups -- replaced union bitfields with templates, improved memory allocation, etc
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byuu
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96fe8f760d |
Update to bsnes v031r08? release.
Thank you everyone for the translations! I've also posted a new WIP, with an improved Japanese locale. No changes to the strings that anyone has to worry about with theirs. To strike a compromise, I've removed power cycle from the menu by default, and added a new config file option, "advanced.enable". Set to false initially, but if you set it to true and restart, power cycle will re-appear. I intend to use this option to hide the debugger functionality if and when that gets re-added, as well. Plus we can remove other questionably useful / confusing stuff this way. The key binding for it still shows up (removing it there would be tricky), but it's not bound to anything by default, either. Sound fair? Also, something I've been meaning to do for a while now ... unload/reset/power cycle are now disabled when a cartridge is not loaded. [No archive available] |
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byuu
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8abd1b2dfe |
Update to bsnes v031r07? release.
Okay, new WIP. Couple of changes. One, I was displaying the warning message about unsupported chips no matter what. Oops, fixed. Two, removed the "Select Folder" text. The dialog looks a bit empty now, but oh well. Three, added "Ok" to the warning message box strings. Four, added "Enabled" to the cheat editor strings. You'll notice that "Disabled" is not there -- it's shared by the speed regulation setting. I know, sharing strings sucks, but that's pretty much how the localization system works, sorry. You can use something simple like "On" / "Off" in place of "Enabled" / "Disabled", if necessary. Also updated the locale.cfg file for everyone: http://byuu.cinnamonpirate.com/temp/locale.cfg [No archive available] |
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byuu
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f6efcbe6fd |
Update to bsnes v031r06? release.
Okay, I've posted a new WIP, which has a completed locale.cfg file. Well, it's completed for v032, at least. All translations are going to have to be updated for every release, sadly. For those interested in translating it, I'm looking to only have native speakers perform translations. I don't care if things aren't a perfect literal translation, so long as the general idea gets across. But I don't want anyone using machine translation tools, either. They're very unprofessional, better to wait until someone fluent comes along. Yes, I know that's ironic given my translation to Japanese: hoping someone will re-do that one. The reference locale file is here: http://byuu.cinnamonpirate.com/temp/locale.cfg Format is obviously UTF-8. Yours will need to be in this format as well. Any local encodings will fail miserably. You can see most of the options in bsnes v031 to see where they come into play. I have them mostly sorted per window. Some windows share the same string. I doubt that's going to be a problem, but we'll see. If you have access to the WIPs, be sure to get the latest one to test with. If not, and you're willing to translate the UI, feel free to PM me and I'll happily send you a link to it. I've added a "Localization by:" field to the about screen. Please feel free to add your name there. Next up, I'm trying something a bit different for the config files, and I've updated readme.txt to reflect this: bsnes will now check in the same folder as the executable for bsnes.cfg and locale.cfg. If they're found, bsnes will use these files. If they are not found, it will use your user profile folder for storage. So, if you want bsnes to run in single-user mode, just make sure bsnes.cfg and/or locale.cfg exist. If not, you can create a blank file and bsnes will use that next time you run it. If you want multi-user mode, delete the files. If you want multiple profiles, use single-user mode and multiple copies of the executable. I'll be distributing future Windows binaries with blank bsnes.cfg and locale.cfg files, so that single-user mode is the default. Just delete them to switch to the old method if you prefer. Hopefully this pleases everyone. [No archive available] |
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byuu
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36859ea52c |
Update to bsnes v031r05? release.
Well, that was certainly a pain in the ass ... Image Had to port hiro to full-on Unicode / UTF-16. But the GUI API still takes UTF-8, it's all converted internally now, bidirectionally. Oh, and don't make fun of my Japanese :P --- As for the new WIP, I've included my example locale.cfg. No other lines will translate, so don't try yet. You need to put it in the .bsnes folder next to bsnes.cfg. And don't try it unless you have Japanese fonts, obviously. [No archive available] |
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byuu
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64589148d4 |
Update to bsnes v031r04? release.
New WIP. This one adds DPI-independent font sizing for both Windows and Linux. With that, I've reduced the font size back down to "Tahoma 8" on Windows, and "Sans 8" on Linux. Because of that, I was able to reduce textbox and button height from 30 to 25, and label, checkbox and radiobox height from 20 to 18. In other words, the UI looks like it did back with v019. There's only one tiny flaw with the Linux port, I'm unable to change the font face for the listbox column header. It's not actually a widget, so it ignores my gtk_container_foreach -> gtk_widget_modify_font() calls. Any help would be greatly appreciated. I've also added FitzRoy's new icon. It seems to only have 32-bit icons, and no 256-color icons ... I guess we'll see how that looks on Win2k soon enough. Lastly, statusbar toggle was broken in the last WIP, that's fixed now. [No archive available] |
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byuu
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89ae1101ee |
Update to bsnes v031r03? release.
Another WIP. This one changes the GUI toolkit to not invoke callbacks when the API is used to set the state of widgets. With that it was really easy to get the speedreg / frameskip checks to update when using the keyboard controls. What I really need for this WIP is testing to see if any UI elements are now broken as a result of the change. For example, try and get a checkbox to not represent the actual state of something. Eg a frameskip of 2 but the checkbox is on 0. Also check startup states and that sort of thing. The UI code really needs to be cleaned up at this point ... [No archive available] |
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byuu
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340d86845a |
Update to bsnes v031r02? release.
New WIP. Please be sure to test a few games with this one to look for
regressions.
I got tired of using bit packing for CPU / SMP register flags, because
they do not mask the upper bits properly.
In other words, (assume big endian) if you have struct { uint8_t n:1,
v:1, m:1, x:1, d:1, i:1, z:1, c:1; } p; and you set p.m = 7; it will
set p.v and p.n as well. It doesn't cast the type to bool.
So I rewrote the old template struct trick, but bound it with a
reference rather than relying upon union alignment. Looks something
like this:
template<int mask>
struct CPUFlag {
uint8 &data;
inline operator bool() const { return data & mask; }
inline CPUFlag& operator=(bool i) { data = (data & ~mask) | (-i
& mask); return *this; }
CPUFlag(uint8 &data_) : data(data_) {}
};
class CPURegFlags {
public:
uint8 data;
CPUFlag<0x80> n;
CPUFlag<0x40> v;
...
CPURegFlags() : data(0), n(data), v(data), m(data), x(data),
d(data), i(data), z(data), c(data) {}
};
Surprisingly, benchmarks show this method is ~2x faster, but flags
were never a bottleneck so it won't affect bsnes' speed.
Anyway, with this, I decided to get rid of the confusing and stupid
!!() stuff all throughout the CMP and SMP opfn.cpp files. It's no
longer needed since the template assignment takes only a boolean
argument. Anything not zero becomes one with that.
So code such as this:
uint8 sSMP::op_adc(uint8 x, uint8 y) {
int16 r = x + y + regs.p.c;
regs.p.n = !!(r & 0x80);
regs.p.v = !!(~(x ^ y) & (y ^ (uint8)r) & 0x80);
regs.p.h = !!((x ^ y ^ (uint8)r) & 0x10);
regs.p.z = ((uint8)r == 0);
regs.p.c = (r > 0xff);
return r;
}
Now looks like this:
uint8 sSMP::op_adc(uint8 x, uint8 y) {
int r = x + y + regs.p.c;
regs.p.n = r & 0x80;
regs.p.v = ~(x ^ y) & (x ^ r) & 0x80;
regs.p.h = (x ^ y ^ r) & 0x10;
regs.p.z = (uint8)r == 0;
regs.p.c = r > 0xff;
return r;
}
I also took the time to figure out how the hell the overflow stuff
worked. Pretty neat stuff.
Essentially, overflow is set when you add/subtract two positive or two
negative numbers, and the result ends up with a different sign. Hence,
the sign overflowed, so your negative number is now positive, or vice
versa.
A simple way to simulate it is:
int result = (int8_t)x + (int8_t)y;
bool overflow = (result < -128 || result > 127);
But there's no reason to perform signed math, since the result can't
be used for anything else, not even any other flags, as the opcode
math is always unsigned.
So to implement it with this:
int result = (uint8_t)x + (uint8_t)y;
We just verify that both signs in x and y are the same, and that their
sign is different from the result to set overflow, eg:
bool overflow = (x & 0x80) == (y & 0x80) && (x & 0x80) != (result &
0x80);
But that's kind of slow. We can test a single bit for equality and
merge the &0x80's by using a XOR table:
0^0=0, 0^1=1, 1^0=1, 1^1=0
The trick here is that if the two bits are equal, we get 0, if they
are not equal, we get one.
So if we want to see if x&0x80 == y&0x80, we can do:
!((x ^ y) & 0x80);
... or we can simply invert the XOR result so that 1 = equal, 0 =
different, eg ~(x ^ y) & 0x80;
The latter is nice because it keeps the bit positions in-tact. Whereas
the former reduces to 1 or 0, the latter remains 0x80 or 0x00. This is
good for chaining, as I'll demonstrate below.
Do the same for the second test and we get:
bool overflow = ~(x ^ y) & 0x80 && (x ^ result) & 0x80;
We complement the former because we want to verify they are the same,
we don't for the latter because we want to verify that they have
changed.
Now we can basically use one more trick to combine the two bit masks
here. We want to return 1 when overflow is set, so we can look for a
pattern that will only return one when both the first and second tests
pass.
An AND table works great here. 0&0=0, 0&1=0, 1&0=0, 1&1=1. Only if
both are true do we end up with 1.
So this means we can AND the two results, and then mask the only bit
we care about once to get the result, eg:
bool overflow = ~(x ^ y) & (x ^ result) & 0x80;
And there we go, that's where that bizarre math trick comes from. I
realized while doing this something that bugged me in the past.
I used to think that for some reason, the S-SMP add overflow test
required x^y & y^r, whereas S-CPU add overflow used x^y & x^r.
Probably because I read the algorithm from Snes9x's sources or
something.
But that was flawed -- since addition is commutative, it doesn't
matter whether the latter is x^result or y^result. Only in subtraction
does the order matter, where you must always use x^result to test the
initial value every time.
Subtraction switches up things a little. It sets overflow only when
the signs of x and y are _different_, and when x and the result are
also different, eg:
bool overflow = (x ^ y) & (x ^ result) & 0x80;
Fun stuff, huh?
So I was wanting this tested thoroughly, just in case there was a typo
or something when updating the opfn.cpp files.
---
That said, I also polished up the UI a bit. Moved disabled to the
bottom of the speed regulation list, and added key / joypad bindings
for "exit emulator", "speed regulation increase / decrease" and
"frameskip increase / decrease".
I know these key bindings do not update the menubar radiobox positions
yet. I'll get that taken care of shortly.
[No archive available]
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byuu
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b895f29bed |
Update to bsnes v031r01? release.
New WIP posted. Not much to this one. - added FitzRoy's updated program icon - removed safe_free / safe_delete / safe_release template functions - replaced nearly all malloc / free calls with new / delete[] And lastly ... long ago, I used "File / Edit / Help" to conform to standard UI design. I quickly replaced Edit with Settings, and later Help with Misc. Lately, the last one has been bugging me ... "File"? File what? Why is there a reset system option under file? So, it may be somewhat controversial, but I renamed File to System, and dropped the now superfluous " System" from Reset / Power Cycle. I'd honestly like to remove "Exit" from that menu as well, but I know I'd be pushing it then. What I want to do next is move "Disabled" in speed regulation to the bottom of the list, and add key bindings to increase / decrease speed regulation. I'd like the step after fastest to be disabled. It makes sense, as fastest can never be faster than disabled, but disabled can be faster than fastest. Other nice ideas would be: a cartridge info option under the system menu somewhere, frameskip +/- key bindings, an exit emulator key binding, a new GUI panel with options to warn on reset / unload / exit, and cleaning up of the event namespace for the UI. Specifically, start working on a more advanced status panel that can display five- second alerts that override the normal output. [No archive available] |
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byuu
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1ef279cb83 |
Update to bsnes v031 release.
New release posted. Perhaps the most important change was fixing a bug in the Windows port when the keyboard was used for input. For some reason, the IsDialogMessage() function I use for tab key support was causing the main window to emit the Windows error beep every time a key was pressed after a few minutes of use. I do not know why this is, so I have simply disabled the tab key support to prevent this from happening.
Other than that, lots of polishing went into this release. UPS soft-patching will work with the recently released Der Langrisser v1.02 translation, for those curious. You can also store the UPS patches in GZ/ZIP/JMA support, and bsnes will detect this and decompress the patches first. Use the same ".ups" file extension for this, as it detects via file header.
If you wish to try out the newly added OpenGL support: start bsnes, go to Settings->Configuration->Advanced and set system.video to "wgl" (or "glx" for Linux users), and then restart the emulator. Please bear in mind that ATI's OpenGL drivers are an industry-wide joke, so I'd only recommend trying this on an nVidia or Intel video card.
Changelog:
- Fixed bug and re-enabled HDMA bus sync delays
- Emulated newly discovered IRQ timing edge case
- Optimized offset-per-tile rendering
- Added state-machine implementation of S-DSP core, ~5% speedup
- Added SPC7110 detection, will now warn that this chip is unsupported
- Fixed very annoying Windows port OS beeping noise when using keyboard for input
- Linux port will now save most recent folder when no default ROM path is selected
- Added OpenGL rendering support to Windows port [krom]
- Fixed Direct3D pixel mode scaling bug [krom, sinamas, VG]
- Improved SNES controller graphic [FitzRoy]
- Added UPS (not IPS) soft-patching support; UPS patch must be made against unheadered ROM
- As always, cleaned up source code a bit
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byuu
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0241dd78b7 |
Update to bsnes v030r08? release.
New WIP posted, which adds the immediate-mode opcode IRQ delay findings from this past week. Doesn't have any visible effects on anything. I also went back to a switch table for the CPU / SMP opcodes instead of the jump table. Shaves ~100kb off the object files and compiles faster with no speed loss. I used the jump table before to simplify PGO, but since that's been broken for at least a year now anyway ... Fes, thanks for the temporary workaround. I'll try and get a new release out this weekend if possible. I'd like to have UPS soft- patching in before the next release, though, hence the delay. [No archive available] |
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byuu
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a13c3aece6 |
Update to bsnes v030r07? release.
New WIP. Direct3D driver: removed diffuse color vertex information, and made driver re-initialize whenever window size changes. Should fix ATI resize in pixel scale mode bug once and for all. Confirmation would be appreciated. Speed will still be bad on some cards that can't handle large textures, and I don't really want to implement StretchRect() profiling, so that's still an issue. Windows/hiro: disabled IsDialogMessage(). This will prevent the tab key from working in the configuration panel, but will also stop the main window from beeping every time you push a key -- the lesser of two evils. Blame Microsoft for this bullshit. IsDialogMessage() should empty the key buffer, but it doesn't when there are no tabbed controls on a window. I'll rig something up in the future for this. Linux/hiro: GTK+ file open / file save / folder select dialogs will now save the path if you selected a valid file, so that next time you will start in that folder. This didn't matter if you set hard-coded paths in bsnes, but it makes a positive difference if you did not. [No archive available] |
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byuu
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20977817ae |
Update to bsnes v030r06? release.
New WIP up. This one fixes HDMA bus sync timing. I verified this was correct per hardware with the HDMA test sync ROM. It was definitely wrong before. Secret of Mana, Street Racer and Jumbo Ozaki no Hole in One all work. Yes, they worked in the official v030 release, but that release had HDMA sync disabled and rounded. Mecarobot is improved greatly, but still flickers when the golf course is moving. If you're as desperate as I am to play this amazing masterpiece _right now_, you can always hex edit the ROM and change offset 0x1c6f from 0x40 to 0x80 :) I'm still investigating that issue more before I start running hardware tests. I want to rule out things that can't be the cause of the bug first. I've also added (hopefully) proper SPC7110 detection. If anyone wants to test all of them to make sure it works, great. It should give you a popup now saying that it's unsupported. Down to just needing ST-011 detection now. [No archive available] |
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byuu
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ba25c82939 |
Update to bsnes v030r05? release.
New WIP posted, which adds: - krom's Direct3D fix; point mode at multiples of 3x and higher without aspect ratio correction is no longer blurry - FitzRoy's updated SNES controller graphic - glX improvement for Linux, window will clear to black on startup for ATI cards now too, but it still doesn't redraw when the window is damaged because I can't trap the exposure events - tiny clarification to S-DSP emulator source (use echo_hist_pos enum instead of just "8") - started to add SPC7110 _detection_ for the sole purpose of advising that the chip isn't supported. Not finished yet. Also need to fix ST-011 detection while I'm at it (it's detected as ST-010 now; they share ROM type and mapper IDs), and all special chip games should be covered. - re-added the slightly incorrect HDMA sync timing. It helps (but doesn't fix) Mecarobot, it breaks the SoM intro again; but Street Racer and Jumbo Ozaki are still working right -- looks like other timing improvements since then were enough for those titles For those asking for WIP access, I'm really sorry but I have way too many testers now. It's extremely hard for me to even keep track anymore. I just don't have the bandwidth. If you absolutely need a specific WIP, I'll stick it on a file sharing site or something for you. Otherwise, my apologies for not sending you the link. I absolutely do appreciate the offers to help beta test, though. [No archive available] |
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byuu
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3babe932fd |
Update to bsnes v030r04? release.
One thing we can always do is add some platform-specific profiling code. Have bsnes try and determine what the fastest driver is upon first run. As if I don't have enough to do already, heh. New WIP, which converts the S-DSP ring buffers to an internal class object. Surprisingly, it actually does make the code a bit nicer to look at, although it's kind of unfortunate I can't hijack operator[]=, heh. I'd be forced to use modulus for that. Even more surprising, it's about ~2% faster than before. Even though it's technically even more complex now with three writes instead of two. Makes no sense at all, but I won't complain. Getting 122fps now on Zelda 3 load screen. --- ATI Radeon X300LS: Direct3D = 64fps OpenGL = 24(!!)fps ... as if we needed _another_ reason not to buy ATI products. What the hell was AMD thinking, buying them? Better yet, why do people buy ATI products? Laptops, I can understand. But for desktops?? Seriously. That performance is so terrible, you couldn't even play OpenGL games with that. We really need more OGL titles to rape ATI on benchmark tests, so that they'll get their heads out of their asses. [No archive available] |
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byuu
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6bdeaef0f4 |
Update to bsnes v030r03 release.
v030 wip3 posted. This one add's krom's ruby changes, meaning Windows OpenGL support. For consistency, I changed the Windows system.video setting to "wgl", and Linux OpenGL to "glx". Linux users should be sure to update that to avoid SDL video output. I get ~119fps with OpenGL, and ~120fps with Direct3D. I'd appreciate if everyone else would test OpenGL support. If it works everywhere that D3D works, and avoids that texture size slowdown issue, then we should make it the default driver. The only issue I see with the driver now is that vsync is enabled no matter what. You can turn it off in eg the nVidia control panel by overriding the setting. I also recommend enabling triple buffering. With that, video is perfectly smooth and audio is ~99.5% perfect. So, so close. A slight cpu.freq change and you can probably get it perfect. God, it's so nice having perfect video and audio. I really wish that worked across the board. It's absolute euphoria playing games like that. [No archive available] |
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byuu
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9e3827e2a2 |
Update to bsnes v030 release.
I didn't want to release a new version so soon, however there is a rather serious bug in bsnes v029 where the path information for the save RAM files is discarded when one has not selected a default save RAM / cheat path from the path settings tab in the configuration settings window. Because of this, it gets stored to the base directory. For Windows users, this is c:\, and for Linux users, this is / This bug forced my hand, so I'm releasing v030 to correct this issue. I also cleaned up the S-DSP emulation code to be more consistent with my programming style -- it gets bit-perfect matches to v029's wave output, so I don't foresee there being any problems. |
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byuu
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e499670ad9 |
Update to bsnes dsp release.
Okay, it's just blargg's. I hope he doesn't mind ...
I rewrote his S-DSP emulator in pure C++. Only took me seven hours,
not bad. anomie's took a few days.
Now, given, it's extremely similar of course. First, the algorithms
are going to be mostly the same regardless of who writes the code.
Second, I really didn't see a reason to waste too much time on this
reverse engineering a bunch of stuff myself, so I pretty much just
took the code and "rewrote" (read: copied) it in my unique style, and
changed a few things here and there. Code flow, variable names,
tables, exact algorithms, etc were blatant, direct copies.
Things I did change:
- counter rate 0 is now hardcoded to not ever hit zero
- counter read is now boolean instead of unsigned short
- a lot of multiplication was converted to shifts
- broke up the program into ~9 source files
- no more global functions anywhere, all in one class
- removed the hooks for things like external channel muting -- will
re-add if I ever add an option like that to bsnes
- modified VREG to not need the voice regs handle passed to it
- all voice functions take a reference instead of pointer to the voice
structs now
- packed 32-line timing table expanded to multi-line
- left everything in their own small chunk functions ... kind of torn
on whether I want to merge that with the main timing function. I like
the encapsulation, but it would remove the need to keep so many
struct-based state variables
- added a few more comments on parts that confused me at first
- removed assignment inside conditional stuff; even though I do that
myself on occasion in other code I write, heh
- yadda yadda, more minor stuff like that
Going to keep working at it -- wanted to get it working now, so that
finding regressions will be easier. I want to remove the double writes
for the ring buffer, make a decision on whether I want to rely on sign
extension, or use sclip<> for that, implement a compile-time option to
bypass libco (will save 2.048 million co_switch calls a second) since
the S-DSP's entire operation fits into a single switch table quite
easily, convert a lot of the mul / div stuff to shifts, convert those
clever split up branches in the envelope and BRR decoding routines to
switch / case tables, remove the shift tables from the BRR decoding,
and try and figure out what's going on with some of the code so that I
can try and document it :)
I'll see if I can contribute something back, too. Perhaps I can look
into what happens when you enable mute or something.
New WIP up which has the new core enabled by default. For those
without WIP access, I've posted the new source for reference. Comments
welcome.
byuu.org/files/bsnes_dsp.zip
... man, feels weird posting a new topic.
[No archive available]
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byuu
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805398e5a8 |
Update to bsnes v029 release.
A new version of bsnes has been released. It contains a few minor emulation fixes, as well as user interface improvements. Behind the scenes, the source has been cleaned up more in preparation for running the CPU and PPU (video processor) separately from each other (eg with no enslavement.) This is required for implementing a clock cycle based PPU renderer.
- Greatly improved invalid DMA transfer behavior, should be nearly perfect now
- Major code cleanup -- most importantly, almost all PPU timing-related settings moved back to PPU, from CPU
- Added option to auto-detect file type by inspecting file headers rather than file extensions
- Rewrote video filter system to move it out of the emulation core -- HQ2x and Scale2x will work even in hires and interlace modes now, 50% scanline filter added
- Re-added bsnes window icon
- Added new controller graphic when assigning joypad keys [FitzRoy]
- Redundant "Advanced" panel settings which can be configured via the GUI are no longer displayed
- Improved speed regulation settings
- XP and Vista themes will now apply to bsnes controls
- Added "Path Settings" window to allow easy selection of default file directories
- Tab key now mostly works throughout most of the GUI (needs improvement)
- Main window will no longer disappear when setting a video multipler which results in a window size larger than the current desktop resolution
- Added two new advanced options: one to control GUI window opacity, and one to adjust the statusbar text
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byuu
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7e6e3e3a69 |
Update to bsnes v028r16? release.
Lots of talking. As I've said many times before, I typically don't like working on fan translations. The programmers are almost always far less skilled than professional developers, and they almost always test on emulators rather than hardware. I may look into this when I'm feeling particularly bored, though I don't know how you could have possibly picked a worse game for me to be caught debugging at work. Well, maybe those "Adult Manga" PD ROMs ... EDIT: New WIP. This one adds IsDialogMessage() support. It isn't perfect, the test apps get the highlighted dots around the active controls, but bsnes isn't for some reason. Don't know why that is yet. And it seems once tab enters into a child window, you can't get back to the outer window. But otherwise, it's better than nothing. I even got the z-order thing down so tab works in the right direction. [No archive available] |
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byuu
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16ba1d1191 |
Update to bsnes v028r15? release.
Thanks, FitzRoy. The controller graphic looks really amazing. I have
two very minor changes to request if you don't mind.
First, I had to increase the size to 372x178 (Windows BMP format adds
alignment if width is not a multiple of 4 -- this makes it a real
bitch to convert the image to my UI wrapper pixel format), and shift
the actual image one pixel left to center the gradient fade.
Second, and more importantly, could you store the controller graphic
in 32-bit format with alpha? Rather than using a white or gray
background, if I could get the full alpha channel information, then I
can adjust the background color to anything I like in the future.
Depending on how it looks, maybe I can just let the controller blend
against the window background itself.
And thank you, King of Chaos, as well. It was extremely difficult to
choose one over the other. I wish I could use just both so as not to
offend anyone. But I kind of like FItzRoy's more. I was kind of going
for that pristine, "cleaner than real life" look. Still, I really
appreciate your help in making a controller graphic.
---
New WIP.
I've added FitzRoy's controller graphic to the input capture window.
It will only display when configuring joypad buttons, not when
configuring UI buttons.
I've also added the new UI settings panel. This lets you control
window translucency for all but the main bsnes window. I capped
opacity to 50% minimum, because I don't want to hear bug reports when
people slide it to 0% and can't find the config window anymore :P
Works on Windows and Linux. If you lack a compositor on Linux, it'll
just stay a solid color. If you have Compiz / Beryl and the blur
filter, use it with gaussian alpha blur. Then you can set opacity all
the way down to 50% and it will still look amazing. I want to post a
screenshot of it, but the image is ~3MB. Maybe later I'll post it to
one of those file hosting sites.
There's also a setting here to control what gets written to the
statusbar. I went back to just displaying the raw ROM title. So you
can use %t for that, %n for the filename, and %f for the frame rate.
Still working on this feature. Plan to keep the game name visible when
pausing, add some additional info that can be output here, etc. It may
be better to keep this setting in the advanced panel, as it's not the
most user friendly thing in the world. Up to you guys, I guess.
Need more settings here, though. Need to fill out that
window more.
[No archive available]
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byuu
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29c871ef62 |
Update to bsnes v028r14? release.
New WIP. Adds Win2k alpha adjust (against black background), some
minor code cleanups, LZSS compression / decompression for storing
graphics, and puts the program icon onto the about screen, which has
been shrunk down a bit again.
So, too late mudlord, the answer was LZSS :P
I wanted to just go with RLE for simplicity, but the compression
ratio sucked. LZSS is the same number of lines of code, yet is three
times more efficient with the icon. And something like a controller
with much more repetition will probably make an even bigger
difference. Meh, the code's easy enough. I wrote it for clarity over
speed, and decompression is always lightning fast with LZ anyway.
Good job decoding the base64 portion, though. Very useful
routine for a library.
As for the controller graphics, wow ... I'm really torn. I really
love how clean FitzRoy's version looks, yet at the same time King of
Chaos' version is so lifelike it's scary. I dislike the "flaws",
though. The scratches on the X, the dot on the bottom right, and the
off-center buttons ... since it's digital anyway, I'd prefer it to
appear perfect, if at all possible.
But it's a tough call. I'll have to hold a vote or
something :)
Thanks a million for helping with the controller graphic,
both of you!
[No archive available]
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byuu
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42f1d08c02 |
Update to bsnes v028r13? release.
New WIP.
Adds a base64 encoder, which zaps the ~21kb icon down to ~5kb. With
the extra space, I used the 48x48 icon instead. It should look a tiny
bit better, but it still obviously can't beat a non-resampled icon.
Also added Linux icon support. That turned out to be a royal pain, as
the gdk-pixbuf library documentation was separate from the GDK
documentation. Tried finding visuals, to make colormaps, to get GCs,
to create pixmaps to blit onto as drawables, to create pixbufs with,
to attach to the window. Turns out, gdk-pixbuf has a function to turn
raw data into a pixbuf.
> Could we have an option to disable this effect in advanced settings
> so that the mode can appear "crisp" as it does in other emulators?
This blurring is required for pseudo-hires to operate
properly, eg in Jurassic Park.
Nonetheless, if you guys really want the option to disable the
blurring, I can add it. Just keep in mind that we're opening up a can
of worms. People will then want an option to disable the sprite
drawing limit, to add hi-res mode7, etc etc. Harder to draw a line in
the sand when you aren't all or nothing.
> This is a problem? If it's a question of storing them all in an ico,
> why not simply say "Here's a nicer ico set seperately, DL if you
> want'.
I'm not going to put resources external to the executable, unless I
absolutely have to. Thus, I have to put all of these icons inside the
source code, and I have to modify the GUI API wrapper to handle this.
> I was thinking, you know, one of you could report it to them.
"Hi, uh, Microsoft? Yeah, your compiler is erroring out
when I compile my emulator with it and PGO enabled."
"Sure, as that's a $12,000 Team Suite Edition feature,
if I could just get your serial number, that'd be great."
"Oh, uh ... I think I left that at home. I'll call you
right back with it, okay?"
"Oh, no problem. If I can just get your full name, I'll
pull you up in our system ... ... hello? Sir?"
::dial tone::
And for the _official_ legal record, I only used the
free trial and express editions :)
> Yeah, one issue they can fix is maybe implement blargg's spc core;
> then again, I thought Snes9x was dead.
Not dead, but on severe life support. Same for SNEeSe and Super
Sleuth. anomie, TRAC and Overload have minimal presence anymore. A
damn shame. The SNES scene is in worse shape than most people realize
at the moment. NES emulators have had dot-based PPU renderers for
years now.
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byuu
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521f4f6952 |
Update to bsnes v028r12? release.
New WIP.
vcounter / hclock / hcounter renamed to vcounter / hcounter / hdot. I
think it's more clear this way. Fixed up the v/hc stuff to v/h in
bppu_mmio.cpp to match.
Instead of building each driver for ruby independently, I grouped
them all together into one object file. I know everyone else hates
that, but too bad -- that's the way I program. No sense building ~10
object files when one will do just as well. I was able to cut out ~20
lines from the Makefile as a result of this.
I added CB_SETITEMHEIGHT magic to actually set combo box to requested
height. Neat. Of course, bsnes doesn't currently use any combo boxes
in the UI, but it'll be nice when it does, at least.
Lastly, I added something new to the Windows port (that
used to be there a long time ago), just for FitzRoy :P
I'll go over that in more detail tomorrow. For now,
consider it a surprise.
[No archive available]
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byuu
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92cfb1268a |
Update to bsnes v028r11? release.
New WIP up.
I was a little too busy to work on bsnes this weekend,
but I got some work done tonight.
First, I moved the field / interlace / overscan status
functions over to the PPU, where they belong.
This led me to kill a lot of extra CPU timing variables, such as
vblstart and vnmi_trigger_pos. The latter I had to kill because I can
no longer call sCPU::update_interrupts() when the PPU changes the
overscan setting. You may be wondering about interlace toggle -- well,
it can only take effect at the start of a new frame anyway, and the
timing for scanline 0 is the same regardless of interlace setting, so
it doesn't really need to call update_interrupts() anyway.
With this moved back to the PPU, I was able to clean up the PPU
functions a bit, too. Before, I had PPU::scanline_is_hires() and
CPU::interlace(), and then a function called PPU::get_scanline_info()
that would read the previous two functions and copy them into a
struct. What an odd construct, I'm sure it was more complex in the
past. Cruft, basically. I just killed that, renamed scanline_is_hires
to just hires, and now SNES::Video just queries ppu.hires() and
ppu.interlace() directly. Much nicer.
I didn't lose any speed here, either. I made up the difference by
force inlining the PPU states in the bPPU header file.
I ran all my IRQ and NMI tests again, I didn't see any regressions.
Testing of games that use interlace and overscan, as well as of IRQ-
sensitive games, would be appreciated.
While cleaning up the PPU, I had some code that would flush the PPU
buffer when disabling interlace. I removed that as it looked rather
ugly. Don't really have a clean way of handling that. Not like any
game out there toggles interlace every frame anyway.
I went through and killed a bunch of config file options that don't
actually do anything anymore, such as audio.frequency and
video.use_vram.
Lastly, I rewrote the advanced panel code finally. All options that
can be controlled through the UI have been removed. The list is ~80%
smaller now. I also improved a lot of the descriptions. I think it
looks a lot better now, at least. I went with a blacklist, rather than
whitelist. I figure, better to have extra options if I forget to
filter them out; than to have missing options if I forget to add them.
Before the next release, I'd like to add back default_height() stuff
to get the textboxes and buttons smaller on the Windows port. Maybe
revert that back to Tahoma 8. I should also add descriptions to the
last few advanced panel options missing them. Other than that -- just
regression testing, I suppose. I can't break up the PPU enslavement
any more without adversely affecting performance at this point.
Hmm, would also be nice to rename vcounter / hclock / hcounter to
vcounter / hcounter / hdot. Afraid of missing a reference somewhere
and screwing up the timing, heh.
I tried to get the icon working again on the Windows port. But using
LoadImage or CreateIconIndirect doesn't handle the alpha level of
bsnes' icon properly. It ends up as a 1-bit transparency that looks
terrible in the titlebar, as well as the taskbar. The only way I can
get it to look good is with LoadIcon and grabbing the icon from the
resource file. The reason I don't want to do this is because it's not
at all portable to GTK+. Sigh. Tested this on Win2k, by the way. Win2k
isn't supposed to support the alpha channel in icons at all, but it
sure the hell does on the taskbar.
I even tried GetIconInfo() on the icon returned from LoadIcon(), and
then CreateIconIndirect on that, and it crushes the translucency
again. So it isn't a problem with the format of hbmMask and hbmColor
in my ICONINFO struct.
[No archive available]
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byuu
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4d922ba17c |
Update to bsnes v028r10? release.
New WIP.
This one nukes the region, region_scanlines, prev_line_clocks and
prev_field_lines variables, and removes timeshift.cpp; replaced with
the new history ring buffer. It doesn't appear to affect speed at all,
which is fine by me. Next up, I want to move interlace and overscan
settings back to the PPU.
All of my NMI and IRQ test ROMs, even the absolutely insane clock-
perfect ones, still pass. So there shouldn't be any regressions. But
if you feel like testing any IRQ sensitive games, that's cool.
More visibly, I've bound the .cht path to the selection in the path
settings window. So all three paths actually work now. I tested it by
sorting all of my images by ROM, SRAM and Cheat ... have to say, the
folder looks a whole hell of a lot nicer now. I can see why this
feature is so popular.
> Mainly, there needs to be mechanisms to capture the current frames,
> like through render targets.
Well, I guess if you don't mind writing up a small
example I could work on porting the current code over.
[No archive available]
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byuu
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3b2918791c |
Update to bsnes v028r09? release.
New WIP with XP / Vista theming and cheat path selection. Note that cheat selection is just a placeholder. It still saves in the same folder as the ROM for now. I also spent about four hours trying to get the dual counter into a fork of bsnes ... and had my ass handed to me. Rigging something up really quickly that will break every last timing test I have is easy. But it looks like doing this properly is going to be an extreme undertaking that will take at least a few weeks. The code is just too old and too hardcoded. I've started cleaning up that code to match my modern programming style. It seems the only way to really tackle this is going to be very slowly moving variable by variable to a separate class/struct somewhere (and running my regression test ROMs each time), and then once the entire thing is moved out of the CPU, try and clone it and fork off the PPU to its own thread. By my estimates, it appears that simply splitting the CPU and PPU, and giving the PPU its own cothread, is eating ~8% of performance. The good news though is that if and when I succeed, it's quite possible I can emulate the OAM cache behavior, which would fix the black scanlines in Dr Franken and Winter Olympics. Some other good news ... I decided there was really no sane reason to have different clock frequencies for the CPU<>PPU and SMP<>DSP, since the real SNES only has two crystal clocks anyway. A novelty, sure, but that would complicate the fuck out of dual counters. With that gone, I can avoid a 64-bit multiplication during each SMP/DSP addclocks call. That gives a modest ~2% speedup -- possibly placebo. Looks like a ring buffer for timeshifting backwards isn't going to help much. I only notice a ~1-2fps difference even when disabling timeshifting completely. Not surprising, timeshifting really doesn't have that much overhead to it. Oh yeah, it seems I disabled the code that set the hclock to 186 upon reset a while back, which was causing some of my oldest tests to fail. I can't remember why I disabled that (maybe something to do with cothreads), and enabling it didn't seem to cause any problems, so ... I left it enabled. Let me know if anything screwy happens. [No archive available] |
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byuu
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b7d34a8aa3 |
Update to bsnes v028r08? release.
New WIP.
Fixed the frameskipping bug, fixed the DirectDraw renderer. I also
added a new folder_select function to both ports of hiro (Windows and
GTK+), and with that, I added a new path settings panel to the
configuration window.
You can see how it looks here:
http://byuu.cinnamonpirate.com/images/bsnes_20080219.png
Also, I compiled the Windows binary with Direct3D support omitted.
tetsuo55, please grab this version, as I intend to compile with
Direct3D support for subsequent WIPs.
[No archive available]
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byuu
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8fd90cc123 |
Update to bsnes v028r07? release.
New WIP adds an option to enable or disable filetype
detection by reading the format header. I received no feedback, so I'm
defaulting to this behavior being off. In other words, I'm defaulting
to requiring the file extension to be correct to properly handle the
file. This is because there's no reason a real SNES would behave
different just because $8000 = 'P' and $8001 = 'K', and with the
option enabled by default, you wouldn't be able to get such a game to
run. But the option is there for those who want it.
I've also added bumpers to everything but the core (cpu, smp, ppu,
dsp) and some of the library stuff and platform-specific stuff (hiro,
libfilter, libco, ui) -- really can't add them to libco as I want each
individual file to compile on its own if the user wants. But overall,
it should make things a lot easier for those trying to build bsnes
without using my Makefile.
Not in the WIP, I just fixed a frameskipping bug. It
was broken in the last few WIPs, including the most recent.
> You'd be best off reading 7 bytes, and then memcmp()'ing them.
Can't memcmp() the low five bits of the GZ flags byte. I'm not
concerned about rigid speed here anyway. It's just file type
detection. I changed it to fread() the bytes, that's good enough.
Thanks for the information, I've extended JMA to a
40-bit check.
> Anyway, the -mdynamic-no-pic option does work and is likely the
> better solution, since it apparently continues to allow linking to
> dynamic libraries, whereas -static apparently does not.
Well, we use -static only when building libco.c. I like -static more,
because it exists in all versions of GCC. I will mention -mdynamic-no-
pic in the libco documentation for v0.13 official.
> Well, turns out the CGRAM content is the same... Surprised
> bsnes, ZSNES and vSNES show 8/16/24, so it's
> something to do with SNES9x.
Thank you for testing! If only all beta testers had
your technical prowess :D
Glad to see it's not a bug on my side. Not really in
the mood to track down bugs at the moment, heh.
> You obviously haven't been around here very long. Razz
> Believe me, someone has or will try it.
I've actually been very fortunate in that regard. At least 95%, if
not all, of bsnes users have been very intelligent and well spoken :)
> Another small issue could be adding a list of recently loaded ROMs
> to the menu.
Not a chance. I can't _stand_ recently opened document
lists.
> now I'll leave you all to this medical hijacking of the thread,
> while waiting for richard bannister to successfully compile and
> release a new bsnes
He has. Get it here. Be sure to send him thanks, please
:)
> byuu's been planning to write documentation for ages, he's just
> never gotten around to it. Perhaps all the experience he's gained
> restructuring bsnes will help him plan out the documentation when he
> does, though
I won't start on docs until I have a functional CPU<>PPU cycle-level
emulation model. I'll try documenting the PPU as I work on cycle
timing, and I can expand upon the documentation from there.
[No archive available]
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byuu
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e651beb72e |
Update to bsnes v028r06? release.
New WIP.
Richard Bannister asked me a year ago to add support to detect the
file compression type by reading the header, as apparently Mac users
can't be bothered to use proper file extensions.
In an act of extreme expediency, I've added his request
in record time :P
Here's the detection code I wrote:
Reader::Type Reader::detect(const char *fn) {
FILE *fp = fopen(fn, "rb");
if(!fp) return Unknown;
fseek(fp, 0, SEEK_END);
unsigned size = ftell(fp);
rewind(fp);
uint8_t a = size >= 1 ? fgetc(fp) : 0;
uint8_t b = size >= 2 ? fgetc(fp) : 0;
uint8_t c = size >= 3 ? fgetc(fp) : 0;
uint8_t d = size >= 4 ? fgetc(fp) : 0;
fclose(fp);
if(a == 0x1f && b == 0x8b && c == 0x08 && d <=
0x1f) return GZIP;
if(a == 0x50 && b == 0x4b && c == 0x03 && d ==
0x04) return ZIP;
if(a == 0x4a && b == 0x4d && c == 0x41 && d ==
0x00) return JMA;
return Normal;
}
If anyone sees any problems, please let me know. And unless your name
is Nach, I expect you to read and cite official documentation to point
out any problems.
Note: I need more than 16-bit accuracy to avoid false positives, so I
read the compression type and flags for GZIP. Compression type should
always be 0x08 according to my understanding of GZ. Flag top 3 bits
are always 0 per spec. I guessed with JMA's fourth byte. I hope it's
always zero, but I don't know that for certain.
The new WIP has GZ/ZIP/JMA support built-in, so testing would be
appreciated, though I doubt you'll hit any false positives.
Now, a more important question. Should I enable this
detection by default in bsnes, or go by filename? It's _possible_ an
SNES ROM could have these headers, despite not being compressed at
all. One could even add these signatures intentionally if they really
wanted. A real SNES game could have these bytes at the top of the
file, quite obviously.
So, is it better to cater to people who misname extensions, or to the
possibility that a game might have these bytes in the signature (a one
in four billion chance of happening accidentally. One in 500 million
for GZ false detection.)
---
Also, I added some changes by KarLKoX to allow OpenAL to build on
Windows. Namely, I removed the unused ALut dependency, and added
support to the makefile to include openal32. I don't intend to build
OpenAL into the default Windows binaries (because I don't want extra
DLL dependencies that most people do not have; and because OpenAL
support sucks on Windows for non-Creative cards), but perhaps in the
future I'll offer more than one version for download.
> The "almost black" color below the door is 8/16/24 in bsnes
> (standard preset) and 0/16/16 in SNES9x. It's best to see on a black
> background.
> EDIT: This might be due to the RGB565 format.
Wow, that's quite a difference. If you have bsnes v013-v019, you can
dump the palette through the memory viewer. Perhaps see what SNES9x
has from its savestate, and if it's different -- one of us has an
emulation bug.
Not an RGB565 problem, or the colors would match when
ignoring the low three bits (two for green.)
bsnes:
00001000
00010000
00011000
SNES9x:
00000000
00010000
00010000
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byuu
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4cbba77fc7 |
Update to bsnes v028r05? release.
New WIP up. This one re-adds HQ2x and NTSC, so all
filters from v028 are back, plus there's the new scanline filter.
So all of that code is now out of the core. It was pretty silly that
eg the S-SMP core was dependent upon the SNES class, which depended on
the VideoFilter class, which depended upon the HQ2x class, which
depended upon the ~50kb HQ2x blending tables. Well, no longer.
While I didn't make V-only HQ2x and Scale2x filters (yet?), I did add
some code to make it fallback on the direct renderer if hires or
interlace is being used. This means the issues with hires games (eg
DKC intro) should be gone. Let me know if you find any problems.
I also re-added DMPSDisable to the GTK+ screensaver disable code,
since that was triggering after ~30 minutes or so still. It probably
won't even work, but whatever.
> Why default to a crippled renderer to save those people a few
> clicks?
First impressions and all that, mostly.
> I have an Intel Mac with OS X 10.4 (no Leopard, sorry, but it
> shouldn't be that different yet) I can test whatever on
Thank you! :D
Okay, first thing would be to make sure libco itself
works. Please download this:
http://byuu.cinnamonpirate.com/files/libco_v13_rc2.zip
You can compile the test program like this:
g++ -O3 -fomit-frame-pointer -c test_timing.cpp
gcc -O3 -fomit-frame-pointer -o libco.o -c
../libco.c
g++ -O3 -fomit-frame-pointer test_timing.o
libco.o -o test_timing
Then just run test_timing that is produced, and let me
know what the output is, or if it segfaults.
> Really, you want a first-gen Core 2 Duo or newer.
Yeah, it's pretty slow. Especially since v018. It used
to be easy to get 80-100fps with a 3500+.
[No archive available]
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byuu
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1194d3f9dc |
Update to bsnes v028r04? release.
New WIP. Windows binary included. I've added back
Scale2x support, and I also added a scanline filter for Snark. No, I
don't plan on combining them so you can do things like Scale2x +
scanlines. It's a 50% scanline filter. I may add 75% and 100% in the
future.
Ah, and a while back I mentioned a certain software
filter I saw. Here is that picture:
http://byuu.cinnamonpirate.com/temp/PhosphorSimTest1.jpg
Unfortunately, I don't even remember where I found the image anymore,
let alone who made it. Does anyone here know how to recreate the
filtered image from the source image?
I'd prefer to avoid baseless speculation, if you know how it is done
-- and better yet, if you can duplicate it -- please let me know. I
really, really like the filter and would love to add it to bsnes.
[No archive available]
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byuu
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89a1b3d65f |
Update to bsnes v028r03? release.
Posted a new WIP, which cleans up src/snes. I've completely killed all the video filtering stuff, and cleaned up the rest. Only the audio WAV logger remains. Didn't feel like moving that to the UI tonight. So far, I have the colortable and a direct filter moved to libfilter. I'll probably just add Scale2X and a simple scanline filter for the time being, but HQ2x and NTSC will have to be re-added before another official release can happen. [No archive available] |
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byuu
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5a82cdf978 |
Update to bsnes v028r02? release.
Okay, I've posted a new WIP. Windows binary included.
Changes:
- Video output uses RGB888, rather than RGB565
- Removed RGB modes from Xv. They're a major hassle, I can't test
them, and they didn't even work right. Maybe I'll try again in the
future
- $(DESTDIR) added to Makefile
- Increased Linux usleep idle delay from 20 to 20,000, so
bsnes appears to consume 0% CPU time when idle
- Started moving src/snes/video to src/lib/libfilter. So
far, only the colortable has been moved over
I held off on actually using libfilter's colortable. I'm intending to
break things completely here very shortly by eliminating
src/snes/video stuff, but I wanted to get a WIP out before doing so,
so that people could mess around with RGB888.
Speed is going to be a little slower for Linux users who use the GLX
or Xv video driver. Very sorry about this. If you need to, stick with
v0.028 official for the time being.
---
By the way, RGB888 is the bottom row. Thanks for playing. RGB888
doesn't make bright colors darker or vice versa, it avoids rounding
errors. It has the biggest effect on near-black colors, as before they
were getting crushed badly by the exponential curve gamma adjust. But
don't be fooled: really dark colors will still be much harder to see
than with the gamma curve turned off.
Anyway, if you liked the top row more, then just adjust
the settings slightly on the raster settings tab :)
EDIT: Neat, fglrx driver goes from 57.5fps to 59.5fps
with GLX. YMMV.
[No archive available]
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byuu
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52be510d2b |
Update to bsnes v028r01? release.
New WIP posted, Linux only. Need all the testers I can
get on this one, please.
First and foremost, I spent about four hours figuring out how to
disable the screensaver on Linux. I tried XSetScreensaver,
XResetScreenSaver, XScreenSaverSuspend, DPMSDisable, synthetic
XSendEvent, and all of them failed miserably. I ended up getting it to
work with only one thing: XTestFakeKeyEvent. I send a fake keypress
every ~20 seconds. The key send is keycode (not keysym) 255. I don't
know of many 256-key keyboards, so I think that should be fine.
Anyway, testing would be greatly appreciated. Please make sure the
synthetic key events do not interfere with your applications in any
way. Technically, the fake key send goes to whatever the active app
is. It shouldn't matter as the keycode used is undefined. I haven't
seen any GTK+ or Qt apps do anything with it, they just ignore it. If
any issues come up, then the best I can do is enable the screensaver
whenever bsnes doesn't have focus, and disable when it does have
focus. I think it should be fine, though. Totem uses the same trick
and nobody seems to mind. mplayer tries all of my above methods plus
bizarre fake messages and dbus commands to try and stop the
screensaver, and it still fails for a lot of people.
Next up, I've extended the Xv renderer. It can handle RGB15, 16, 24,
32 and YUY2 formats now. It defaults to RGB ones if you have them. I'd
like if all of them could be tested. RGB15 and 16 should be perfect,
24 and 32 will likely have bad pointer arithmetic, but will hopefully
work.
Need to set driver to "xv", and check what you have with "xvinfo". It
defaults to RGB16, then RGB15, then RGB32, then RGB24, then YUY2, then
it gives up and fails. In the future we can see about letting the
encoding be user-selectable.
> if your repository-maintaining friend doesn't have an amd64 install
> with which to build packages
That's exactly it, sorry. Plus I don't want to burden
him more than I do already.
[No archive available]
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byuu
|
8b7219bdef |
Update to bsnes v028 01 release.
[No changelog available] |
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byuu
|
926ffd9695 |
Update to bsnes v028 release.
Changelog:
- OpenGL (with hardware filter mode support) and SDL video drivers added to Linux port
- OpenAL (with speed regulation disable support) and OSS audio drivers added to Linux port [Nach]
- SDL input driver (with joypad support) added to Linux port
- Emulator pause option added
- Added option to select behavior of bsnes when idle: allow input, ignore input or pause emulator
- Added support to remap common GUI actions to key/joypad presses on the "Input Configuration" screen
- bsnes will now clamp the video output size when it is larger than the screen resolution
- GUI library has been enhanced, and renamed to hiro
- Fullscreen mode now always centers video, rather than approximates
- Fullscreen mode now works correctly on Linux/Openbox
- Extra layer of abstraction in src/ui has been removed, as GUI lib unifies all ports anyway
- Video, audio and input drivers unified into standard library, named ruby
- All custom headers have been merged into a new template library, named nall
- Makefile rewritten, vastly improved. Allows quick toggling of compiled-in drivers
- Makefile: all object files now placed in /src/obj, binary placed in /
- libco greatly enhanced, no longer requires an assembler to build [byuu, blargg, Nach]
- libco SJLJ driver added; bsnes should now build on any Unix-derivative now (Solaris, OS X, PS3, etc) [Nach]
- Fixed register $213e.d4 PPU1 open bus behavior [zones]
- Windows port will not activate screensaver while bsnes is running [Nightcrawler]
- Visual C++ target no longer requires stdint.h
- And lots more -- mostly code refactoring related
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