mirror of https://github.com/bsnes-emu/bsnes.git
85 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Tim Allen
|
afa8ea61c5 |
Update to v104r06 release.
byuu says:
Changelog:
- gba,ws: removed Thread::step() override¹
- processor/m68k: move.b (a7)+ and move.b (a7)- adjust a7 by two, not
by one²
- tomoko: created new initialize(Video,Audio,Input)Driver() functions³
- ruby/audio: split Audio::information into
Audio::available(Devices,Frequencies,Latencies,Channels)³
- ws: added Model::(WonderSwan,WonderSwanColor,SwanCrystal)()
functions for consistency with other cores
¹: this should hopefully fix GBA Pokemon Pinball. Thanks to
SuperMikeMan for pointing out the underlying cause.
²: this fixes A Ressaha de Ikou, Mega Bomberman, and probably more
games.
³: this is the big change: so there was a problem with WASAPI where
you might change your device under the audio settings panel. And your
new device may not support the frequency that your old device used. This
would end up not updating the frequency, and the pitch would be
distorted.
The old Audio::information() couldn't tell you what frequencies,
latencies, or channels were available for all devices simultaneously, so
I had to split them up. The new initializeAudioDriver() function
validates you have a correct driver, or it defaults to none. Then it
validates a correct device name, or it defaults to the first entry in
the list. Then it validates a correct frequency, or defaults to the
first in the list. Then finally it validates a correct latency, or
defaults to the first in the list.
In this way ... we have a clear path now with no API changes required to
select default devices, frequencies, latencies, channel counts: they
need to be the first items in their respective lists.
So, what we need to do now is go through and for every audio driver that
enumerates devices, we need to make sure the default device gets added
to the top of the list. I'm ... not really sure how to do this with most
drivers, so this is definitely going to take some time.
Also, when you change a device, initializeAudioDriver() is called again,
so if it's a bad device, it will disable the audio driver instead of
continuing to send samples at it and hoping that the driver blocked
those API calls when it failed to initialize properly.
Now then ... since it was a decently-sized API change, it's possible
I've broken compilation of the Linux drivers, so please report any
compilation errors so that I can fix them.
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Tim Allen
|
11357169a5 |
Update to v104r02 release.
byuu says:
Changelog:
- md/vdp: backgrounds always update priority bit output [Cydrak]
- md/vdp: vcounter.d0 becomes vcounter.d8 in interlace mode 3
- md/vdp: return field number in interlace modes from status register
- md/vdp: rework scanline/frame counting in main loop so first frame
won't clock to field 1 instead of field 0
- md/vdp: add support for shadow/highlight mode; optimize to minimal
code [Cydrak]
- md/vdp: update outputPixel() to support interlace modes
- sfc/cpu: auto joypad polling start should clear the shift registers;
fixes Nuke (PD)
- thanks to BMF54123 for this bug report
- tomoko: if an invalid video/audio/input driver is found in the
configuration file, it's reset to "None"
- prevents showing the wrong driver under advanced settings; no
longer requires possibly two reboots to fix
Note: the Mega Drive interlace mode 1 should be working fully, but I
don't know any games that use it. Interlace mode 3 (Sonic 2's two-player
mode) does not work at all yet, but this is a good start.
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Tim Allen
|
366e9cebff |
Update to v104r01 release.
byuu says:
Changelog:
- gba/cpu: synchronize to the PPU, not oneself, when the CPU is
stopped
- this bug was patched in the official v104 release; but not in
the .tar.xz archive
- ms/vdp: backdrop color is on the second 16-entry palette, not the
first [hex\_usr]
- ms/vdp: fix background color 0 priority; fixes Alex Kidd in High
Tech World text boxes [hex\_usr]
- tomoko: choose first option when loading files via the command-line
[hex\_usr]
- icarus: lo/hi RAM addressing was backwards; M68K is big endian;
fixes save files in Sonic 3
Many thanks to hex\_usr for the Master System / Game Gear VDP fix.
That's a tricky system to get good technical information on. The fix
should be correct, but please report if you spot any regressions just in
case.
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Tim Allen
|
ba384a7c48 |
Update to v104 release.
byuu says:
Changelog:
- emulator/interface: removed unused Region struct
- gba/cpu: optimized CPU::step() as much as I could for a slight
speedup¹
- gba/cpu: synchronize the APU better during FIFO updates
- higan/md, icarus: add automatic region detection; make it the
default option [hex\_usr]
- picks NTSC-J if there's more than one match ... eventually, this
will be a setting
- higan/md, icarus: support all three combinations of SRAM (8-bit low,
8-bit high, 16-bit)
- processor/arm7tdmi: fix bug when changing to THUMB mode via MSR
[MerryMage]
- tomoko: redesigned crash detector to only occur once for all three
ruby drivers
- this will reduce disk thrashing since the configuration file
only needs to be written out one extra time
- technically, it's twice ... but we should've always been writing
one out on first run in case it crashes then
- tomoko: defaulted back to the safest ruby drivers, given the optimal
drivers have some stability concerns
¹: minor errata: spotted a typo saying `synchronize(cpu)` when the CPU
is stopped, instead of `synchronize(ppu)`. This will be fixed in the v104
official 7zip archives.
I'm kind of rushing here but, it's really good timing for me to push out
a new official release. The blocking issues are resolved or close to it,
and we need lots of testing of the new major changes.
I'm going to consider this a semi-stable testing release and leave links
to v103 just in case.
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Tim Allen
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55f19c3e0d |
Update to v103r32 release.
byuu says:
Changelog:
- Master System: merged Bus into CPU
- Mega Drive: merged BusCPU into CPU; BusAPU into AU
- Mega Drive: added TMSS emulation; disabled by default [hex\_usr]
- VDP lockout not yet emulated
- processor/arm7tdmi: renamed interrupt() to exception()
- processor/arm7tdmi: CPSR.F (FIQ disable) flag is set on reset
- processor/arm7tdmi: pipeline decode stage caches CPSR.T (THUMB mode)
[MerryMage]
- fixes `msr_tests.gba` test F
- processor/arm7tdmi/disassembler: add PC address to left of currently
executing instruction
- processor/arm7tdmi: stop forcing CPSR.M (mode flags) bit 4 high (I
don't know what really happens here)
- processor/arm7tdmi: undefined instructions now generate Undefined
0x4 exception
- processor/arm7tdmi: thumbInstructionAddRegister masks PC by &~3
instead of &~2
- hopefully this is correct; &~2 felt very wrong
- processor/arm7tdmi: thumbInstructionStackMultiple can use sequential
timing for PC/LR PUSH/POP [Cydrak]
- systems/Mega Drive.sys: added tmss.rom; enable with cpu version=1
- tomoko: detect when a ruby video/audio/input driver crashes higan;
disable it on next program startup
v104 blockers:
- Mega Drive: support 8-bit SRAM (even if we don't support 16-bit;
don't force 8-bit to 16-bit)
- Mega Drive: add region detection support to icarus
- ruby: add default audio device information so certain drivers won't
default to silence out of the box
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Tim Allen
|
7022d1aa51 |
Update to v103r23 release.
byuu says:
Changelog:
- gb: added accelerometer X-axis, Y-Axis inputs¹
- gb: added rumble input¹
- gb/mbc5: added rumble support²
- gb/mbc6: added skeleton driver, but it doesn't boot Net de Get
- gb/mbc7: added mostly complete driver (only missing EEPROM), but it
doesn't boot Kirby Tilt 'n' Tumble
- gb/tama: added leap year assignment
- tomoko: fixed macOS compilation [MerryMage]
- hiro/cocoa: fix table cell redrawing on updates and automatic column
resizing [ncbncb]
- hiro/cocoa: fix some weird issue with clicking table view checkboxes
on Retina displays [ncbncb]
- icarus: enhance Game Boy heuristics³
- nall: fix three missing return statements [Jonas Quinn]
- ruby: hopefully fixed all compilation errors reported by Screwtape
et al⁴
¹: because there's no concept of a controller for cartridge inputs,
I'm attaching to the base platform for now. An idea I had was to make
separate ports for each cartridge type ... but this would duplicate the
rumble input between MBC5 and MBC7. And would also be less discoverable.
But it would be more clean in that users wouldn't think the Game Boy
hardware had this functionality. I'll think about it.
²: it probably won't work yet. Rumble isn't documented anywhere, but
I dug through an emulator named GEST and discovered that it seems to use
bit 3 of the RAM bank select to be rumble. I don't know if it sets the
bit for rumbling, then clears when finished, or if it sets it and then
after a few milliseconds it stops rumbling. I couldn't test on my
FreeBSD box because SDL 1.2 doesn't support rumble, udev doesn't exist
on FreeBSD, and nobody has ever posted any working code for how to use
evdev (or whatever it's called) on FreeBSD.
³: I'm still thinking about specifying the MBC7 RAM as EEPROM, since
it's not really static RAM.
⁴: if possible, please test all drivers if you can. I want to ensure
they're all working. Especially let me know if the following work:
macOS: input.carbon Linux: audio.pulseaudiosimple, audio.ao (libao)
If I can confirm these are working, I'm going to then remove them from
being included with stock higan builds.
I'm also considering dropping SDL video on Linux/BSD. XShm is much
faster and supports blurring. I may also drop SDL input on Linux, since
udev works better. That will free a dependency on SDL 1.2 for building
higan. FreeBSD is still going to need it for joypad support, however.
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Tim Allen
|
e1223366a7 |
Update to v103r22 release.
byuu says:
Changelog:
- ruby: ported all remaining drivers to new API¹
- ruby/wasapi: fix for dropping one sample per period [SuperMikeMan]
- gb: emulated most of the TAMA RTC; but RTC state is still volatile²
¹: the new ports are:
- audio/{directsound, alsa, pulseaudio, pulseaudiosimple, ao}
- input/{udev, quartz, carbon}
It's pretty much guaranteed many of them will have compilation errors.
Please paste the error logs and I'll try to fix them up. It may take a
WIP or two to get there.
It's also possible things broke from the updates. If so, I could use
help comparing the old file to the new file, looking for mistakes, since
I can't test on these platforms apart from audio/directsound.
Please report working drivers in this list, so we can mark them off the
list. I'll need both macOS and Linux testers.
audio/directsound.cpp:112:
if(DirectSoundCreate(0, &_interface, 0) != DS_OK) return terminate(), false;
²: once I get this working, I'll add load/save support for the RTC
values. For now, the RTC data will be lost when you close the emulator.
Right now, you can set the date/time in real-time mode, and when you
start the game, the time will be correct, and the time will tick
forward. Note that it runs off emulated time instead of actual real
time, so if you fast-forward to 300%, one minute will be 20 seconds.
The really big limitation right now is that when you exit the game, and
restart it, and resume a new game, the hour spot gets corrupted, and
this seems to instantly kill your pet. Fun. This is crazy because the
commands the game sends to the TAMA interface are identical between
starting a new game and getting in-game versus loading a game.
It's likely going to require disassembling the game's code and seeing
what in the hell it's doing, but I am extremely bad at LR35092 assembly.
Hopefully endrift can help here :|
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Tim Allen
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80841deaa5 |
Update to v103r21 release.
byuu says:
Changelog:
- gb: added TAMA emulation [thanks to endrift for the initial notes]
- gb: save RTC memory to disk (MBC3 doesn't write to said memory yet;
TAMA doesn't emulate it yet)
- gb: expect MMM01 boot loader to be at end of ROM instead of start
- gb: store MBC2 save RAM as 256-bytes (512x4-bit) instead of
512-bytes (with padding)
- gb: major cleanups to every cartridge mapper; moved to Mapper class
instead of MMIO class
- gb: don't serialize all mapper states with every save state; only
serialize the active mapper
- gb: serialize RAM even if a battery isn't present¹
- gb/cartridge: removed unnecessary code; refactored other code to
eliminate duplication of functions
- icarus: improve GB(C) heuristics generation to not include filenames
for cartridges without battery backup
- icarus: remove incorrect rearrangement of MMM01 ROM data
- md/vdp: fix CRAM reads -- fixes Sonic Spinball colors [hex\_usr]
- tomoko: hide the main higan window when entering fullscreen
exclusive mode; helps with multi-monitor setups
- tomoko: destroy ruby drivers before calling Application::quit()
[Screwtape]
- libco: add settings.h and defines to fiber, ucontext [Screwtape]
¹: this is one of those crystal clear indications that nobody's
actually playing the higan DMG/CGB cores, or at least not with save
states. This was a major mistake.
Note: I can't find any official documentation that `GL_ALPHA_TEST` was
removed from OpenGL 3.2. Since it's not hurting anything except showing
some warnings in debug mode, I'm just going to leave it there for now.
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Tim Allen
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d5c09c9ab1 |
Update to v103r20 release.
byuu says: Changelog: - ruby/audio/xaudio2: ported to new ruby API - ruby/video/cgl: ported to new ruby API (untested, won't compile) - ruby/video/directdraw: ported to new ruby API - ruby/video/gdi: ported to new ruby API - ruby/video/glx: ported to new ruby API - ruby/video/wgl: ported to new ruby API - ruby/video/opengl: code cleanups The macOS CGL driver is sure to have compilation errors. If someone will post the compilation error log, I can hopefully fix it in one or two iterations of WIPs. I am unable to test the Xorg GLX driver, because my FreeBSD desktop video card drivers do not support OpenGL 3.2. If the driver doesn't work, I'm going to need help tracking down what broke from the older releases. The real fun is still yet to come ... all the Linux-only drivers, where I don't have a single Linux machine to test with. Todo: - libco/fiber - libco/ucontext (I should really just delete this) - tomoko: hide main UI window when in exclusive fullscreen mode |
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Tim Allen
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8be474b0ac |
Update to v103r19 release.
byuu says:
Changelog:
- tomoko: Application::onMain assigned at end of Program::Program()
[Screwtape]¹
- libco: add `#define _XOPEN_SOURCE 500` to fix compilation of sjlj.c
[Screwtape]
- ruby/audio/openal: fixed device driver string list enumeration
- ruby/audio/wasapi: changing device re-initializes the driver now
- ruby/audio/wasapi: probably a pointless change, but don't fill the
buffer beyond the queue size with silence
- ruby/video/xvideo: renamed from ruby/video/xv
- ruby/video/xvideo: check to see if `XV_AUTOPAINT_COLORKEY` exists
before setting it [SuperMikeMan]
- ruby/video/xvideo: align buffer sizes to be evenly divisible by four
[SuperMikeMan]
- ruby/video/xvideo: fail nicely without crashing (hopefully)
- ruby/video/xvideo: add support for YV12 and I420 12-bit planar YUV
formats²
¹: prevents crashes when drivers fail to initialize from running the
main loop that polls input drivers before the input driver is
initialized (or fails to initialize itself.) Some drivers still don't
block their main functions when initialization fails, so they will still
crash, but I'll work to fix them.
²: this was a **major** pain in the ass, heh. You only get one chroma
sample for every four luma samples, so the color reproduction is even
worse than UYVY and YUYV (which is two to four chroma to luma.) Further,
the planar format took forever to figure out. Apparently it doesn't care
what portion of the image you specify in XvShmPutImage, it expects you
to use the buffer dimensions to locate the U and V portions of the data.
This is probably the most thorough X-Video driver in existence now.
Notes:
- forgot to rename the configuration settings dialog window title to
just "Settings"
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Tim Allen
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284e4c043e |
Update to v103r18 release.
byuu says:
Changelog:
- tomoko: improved handling of changing audio devices on the audio
settings panel
- ruby/audio/wasapi: added device enumeration and selection support¹
- ruby/audio/wasapi: release property store handle from audio device
- ruby/audio/wasapi: fix exclusive mode buffer filling
- ruby/video/glx2: ported to new API -- tested and confirmed working
great²
- ruby/video/sdl: fixed initialization -- tested and confirmed working
on FreeBSD now³
- ruby/video/xv: ported to new API -- tested and mostly working great,
sans fullscreen mode⁴
Errata:
- accidentally changed "Driver Settings" label to "Driver" on the
audio settings tab because I deleted the line and forgot the
"Settings" part
- need to use "return initialize();" from setDevice() in the WASAPI
driver, instead of "return true;", so device selection is currently
not functioning in this WIP for said driver
¹: for now, this will likely end up selecting the first available
endpoint device, which is probably wrong. I need to come up with a
system to expose good 'default values' when selecting new audio drivers,
or changing audio device settings.
²: glx2 is a fallback driver for system with only OpenGL 2.0 and no
OpenGL 3.2 drivers, such as FreeBSD 10.1 with AMD graphics cards.
³: although I really should track down why InputManager::poll() is
crashing the emulator when Video::ready() returns false ...
⁴: really bizarrely, when entering fullscreen mode, it looks like the
image was a triangle strip, and the bottom right triange is missing, and
the top left triangle skews the entire image into it. I'm suspecting
this is a Radeon driver bug when trying to create a 2560x1600 X-Video
surface. The glitch persists when exiting fullscreen, too.
If anyone can test the X-Video driver on their Linux/BSD system, it'd be
appreciated. If it's just my video card, I'll ignore it. If not,
hopefully someone can find the cause of the issue :|
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Tim Allen
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0b4e7fb5a5 |
Update to v103r17 release.
byuu says:
Changelog:
- tomoko: re-hid the video sync option¹
- tomoko: removed " Settings" duplication on all the individual
settings tab options
- ruby/audio/wasapi: finished port to new syntax; adapted to an
event-driven model; support 32-bit integral audio²
- ruby/video/sdl: ported to new syntax; disabled driver on FreeBSD³
¹: still contemplating a synchronize submenu of {none, video, audio},
but ... the fact that video can't work on PAL, WonderSwan games is a
real limitation for it
²: this driver actually received a ton of work. There's also a new
ring-buffer queue, and I added special handling for when exclusive mode
fails because the latency requested is lower than the hardware can
support. It'll pick the closest latency to the minimum that is possible
in this case.
On my Audigy Rx, the results for non-exclusive mode are the same. For
exclusive mode, the framerate drops from 60fps to ~50fps for smaller
buffers, and ~55fps for larger buffers (no matter how big, it never hits
60fps.) This is a lot better than before where it was hitting ~15fps,
but unfortunately it's the best I can do.
The event system used by WASAPI is really stupid. It just uses SetEvent
at some arbitrary time, and you have to query to see how many samples
it's waiting on. This makes it unknowable how many samples we should
buffer before calling `WaitForSingleObject(INFINITE)`, and it's also
unclear how we should handle cases where there's more samples available
than our queue has: either we can fill it with zeroes, or we can write
less samples. The former should prevent audio looping effects when
running too slowly, whereas the latter could potentially be too
ambitious when the audio could've recovered from a minor stall.
It's shocking to me how there's as many ways to send audio to a sound
card as there are sound card APIs, when all that's needed is a simple
double buffer and a callback event from another thread to do it right.
It's also terrifying how unbelievably shitty nearly all sound card
drivers apparently are.
Also, I don't know if cards can output an actual 24-bit mode with three
byte audio samples, or if they always just take 32-bit samples and
ignore the lower 8-bits. Whatever, it's all nonsense for the final
output to be >16-bits anyway (hi, `double[]` input from ruby.)
³: unfortunately, this driver always crashes on FreeBSD (even before
the rewrite), so I'll need someone on Linux to test it and make sure it
actually works. I'll also need testing for a lot of the other drivers as
well, once they're ported over (I don't have X-video, PulseAudio, ALSA,
or udev.)
Note that I forgot to set `_ready=true` at the end of `initialize()`,
and `_ready=false` in `terminate()`, but it shouldn't actually matter
beyond showing you a false warning message on startup about it failing
to initialize.
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Tim Allen
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f87c6b7ecb |
Update to v103r16 release.
byuu says:
Changelog:
- emulator/audio: added the ability to change the output frequency at
run-time without emulator reset
- tomoko: display video synchronize option again¹
- tomoko: Settings→Configuration expanded to Settings→{Video,
Audio, Input, Hotkey, Advanced} Settings²
- tomoko: fix default population of audio settings tab
- ruby: Audio::frequency is a double now (to match both
Emulator::Audio and ASIO)³
- tomoko: changing the audio device will repopulate the frequency and
latency lists
- tomoko: changing the audio frequency can now be done in real-time
- ruby/audio/asio: added missing device() information, so devices can
be changed now
- ruby/audio/openal: ported to new API; added device selection support
- ruby/audio/wasapi: ported to new API, but did not test yet (it's
assuredly still broken)⁴
¹: I'm uneasy about this ... but, I guess if people want to disable
audio and just have smooth scrolling video ... so be it. With
Screwtape's documentation, hopefully that'll help people understand that
video synchronization always breaks audio synchronization. I may change
this to a child menu that lets you pick between {no synchronization,
video synchronization, audio synchronization} as a radio selection.
²: given how much more useful the video and audio tabs are now, I
felt that four extra menu items were worth saving a click and going
right to the tab you want. This also matches the behavior of the Tools
menu displaying all tool options and taking you directly to each tab.
This is kind of a hard change to get used to ... but I think it's for
the better.
³: kind of stupid because I've never seen a hardware sound card where
floor(frequency) != frequency, but whatever. Yay consistency.
⁴: I'm going to move it to be event-driven, and try to support 24-bit
sample formats if possible. Who knows which cards that'll fix and which
cards that'll break. I may end up making multiple WASAPI drivers so
people can find one that actually works for them. We'll see.
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Tim Allen
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4129630d97 |
Update to v103r15 release.
byuu says:
Changelog:
- ruby: rewrote the API interfaces for Video, Audio, Input
- ruby/audio: can now select the number of output channels (not useful
to higan, sorry)
- ruby/asio: various improvements
- tomoko: audio settings panel can now select separate audio devices
(for ASIO, OSS so far)
- tomoko: audio settings panel frequency and latency lists are
dynamically populated now
Note: due to the ruby API rewrite, most drivers will not compile. Right
now, the following work:
- video: Direct3D, XShm
- audio: ASIO, OSS
- input: Windows, SDL, Xlib
It takes a really long time to rewrite these (six hours to do the
above), so it's going to be a while before we're back at 100%
functionality again.
Errata:
- ASIO needs device(), setDevice()
- need to call setDevice() at program startup to populate
frequency/latency settings properly
- changing the device and/or frequency needs to update the emulator
resampler rates
The really hard part is going to be the last one: the only way to change
the emulator frequency is to flush all the audio streams and then
recompute all the coefficients for the resamplers. If this is called
during emulation, all audio streams will be erased and thus no sound
will be output. I'll most likely be forced to simply ignore
device/frequency changes until the user loads another game. It is at
least possible to toggle the latency dynamically.
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Tim Allen
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17697317d4 |
Update to v103r14 release.
byuu says:
Changelog:
- tomoko: by popular choice, default to adaptive mode on new installs
- hiro/windows: fix bug that was preventing the escape key from
closing some dialog windows
- nall/registry: use "\\\\" as separator instead of "/" ... because
some registry keys contain "/" in them >_>
- ruby: add ASIO driver stub (so far it can only initialize and grab
the driver name/version information)
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Tim Allen
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ed5ec58595 |
Update to v103r13 release.
byuu says:
Changelog:
- gb/interface: fix Game Boy Color extension to be "gbc" and not "gb"
[hex\_usr]
- ms/interface: move Master System hardware controls below controller
ports
- sfc/ppu: improve latching behavior of BGnHOFS registers (not
hardware verified) [AWJ]
- tomoko/input: rework port/device mapping to support non-sequential
ports and devices¹
- todo: should add move() to inputDevice.mappings.append and
inputPort.devices.append
- note: there's a weird GCC 4.9 bug with brace initialization of
InputEmulator; have to assign each field separately
- tomoko: all windows sans the main presentation window can be
dismissed with the escape key
- icarus: the single file selection dialog ("Load ROM Image...") can
be dismissed with the escape key
- tomoko: do not pause emulation when FocusLoss/Pause is set during
exclusive fullscreen mode
- hiro/(windows,gtk,qt): implemented Window::setDismissable() function
(missing from cocoa port, sorry)
- nall/string: fixed printing of largest possible negative numbers (eg
`INT_MIN`) [Sintendo]
- only took eight months! :D
¹: When I tried to move the Master System hardware port below the
controller ports, I ran into a world of pain.
The input settings list expects every item in the
`InputEmulator<InputPort<InputDevice<InputMapping>>>>` arrays to be
populated with valid results. But these would be sparsely populated
based on the port and device IDs from inside higan. And that is done so
that the Interface::inputPoll can have O(1) lookup of ports and devices.
This worked because all the port and device IDs were sequential (they
left no gaps in the maps upon creating the lists.)
Unfortunately by changing the expectation of port ID to how it appears
in the list, inputs would not poll correctly. By leaving them alone and
just moving Hardware to the third position, the Game Gear would be
missing port IDs of 0 and 1 (the controller ports of the Master System).
Even by trying to make separate MasterSystemHardware and
GameGearHardware ports, things still fractured when the devices were no
longer contigious.
I got pretty sick of this and just decided to give up on O(1)
port/device lookup, and moved to O(n) lookup. It only knocked the
framerate down by maybe one frame per second, enough to be in the margin
of error. Inputs aren't polled *that* often for loops that usually
terminate after 1-2 cycles to be too detrimental to performance.
So the new input system now allows non-sequential port and device IDs.
Remember that I killed input IDs a while back. There's never any reason
for those to need IDs ... it was easier to just order the inputs in the
order you want to see them in the user interface. So the input lookup is
still O(1). Only now, everything's safer and I return a
maybe<InputMapping&>, and won't crash out the program trying to use a
mapping that isn't found for some reason.
Errata: the escape key isn't working on the browser/message dialogs on
Windows, because of course nothing can ever just be easy and work for
me. If anyone else wouldn't mind looking into that, I'd greatly
appreciate it.
Having the `WM_KEYDOWN` test inside the main `Application_sharedProc`, it
seems to not respond to the escape key on modal dialogs. If I put the
`WM_KEYDOWN` test in the main window proc, then it doesn't seem to get
called for `VK_ESCAPE` at all, and doesn't get called period for modal
windows. So I'm at a loss and it's past 4AM here >_>
|
|
|
Tim Allen
|
434e303ffb |
Update to v103r12 release.
byuu says:
Changelog:
- ruby/video: cleaned up Direct3D9 driver and fixed catastrophic
memory leak
- ruby/video: added fullscreen exclusive mode support to the Direct3D9
driver¹
- ruby/video: minor cosmetic code cleanups to various drivers
- tomoko: added support to always allow input when in fullscreen
exclusive mode
- tomoko: fixed window to not remove resizability flag when exiting
fullscreen mode
¹: I am assuming that exclusive mode will try to capture the primary
monitor. I don't know what will happen in multi-monitor setups, however,
as I don't use such a setup here.
Also, I am using `D3DPRESENT_DISCARD` instead of `D3DPRESENT_FLIP`. I'm
not sure if this will prove better or worse, but I've heard it will
waste less memory, and having a BackBufferCount of 1 should still result
in page flipping anyway. The difference is supposedly just that you
can't rely on the back buffer being a valid copy of the previous frame
like you can with FLIP.
Lastly, if you want Vsync, you can edit the configuration file to enable
that, and then turn off audio sync.
Errata: "pause emulation when focus is lost" is not working with
exclusive mode. I need to add a check to never auto-pause when in
exclusive mode. Thanks to bun for catching that one.
|
|
|
Tim Allen
|
ee982f098a |
Update to v103r11 release.
byuu says:
Changelog:
- tomoko: removed "Settings→Video Emulation→Overscan Mask" setting¹
- tomoko: remove a few unnecessary calls to resizeViewport on startup
- tomoko: only resize main window from video settings when in adaptive
or toggling adaptive mode²
- hiro/windows: add `SWP_NOACTIVATE` flag to prevent focus stealing on
resizing invisible windows³
- hiro/windows: suppress spurious API-generated `onSize()` callback
when calling `setVisible()`
¹: it just seemed like bad design to default to overscan masking
being disabled with overscan masks of 8 horizontal, 8 vertical out of
the box. Users would adjust the sliders and not see anything happening.
Instead, I've set the default masks to zero. If you want to turn off
overscan masking, simply slide those to zero again.
²: I figure the only way we're going to be able to fairly evaluate
Screwtape's suggestion is to try it both ways. And I will admit, I kind
of like the way this works as well ... a lot more so than I thought I
would, so I think it was a great suggestion. Still, now's the time if
people have strong opinions on this. Be sure to try both r10 and r11 to
compare. Barring no other feedback, I'm going to keep it this way.
³: this fixes the blinking of the main window on startup.
Screwtape, thanks again for the improvement suggestions. At this point
though, I am not using a tiling window manager. If you are able to patch
hiro/gtk and/or hiro/qt (I mostly use GTK) to work with tiling window
managers better, I wouldn't mind applying said patches, so long as they
don't break things on my own Xfce desktop with xfwm4.
Also, I noticed one issue with Xfce ... if the window is maximized and I
try to call `Window::setSize()`, it's not actually removing the maximize
flag. We'll need to look into how to add that to GTK, but I don't think
it's a huge issue. A similar glitch happens on windows where the icon
still reflects being maximized, but it does actually shrink, it just
sticks to the top left corner of the screen. So this isn't really a
critical bug, but would be extra polish.
|
|
|
Tim Allen
|
cbbf5ec114 |
Update to v103r10 release.
byuu says:
Changelog:
- tomoko: video scaling options are now resolutions in the
configuration file, eg "640x480", "960x720", "1280x960"
- tomoko: main window is now always resizable instead of fixed width
(also supports maximizing)
- tomoko: added support for non-integral scaling in windowed mode
- tomoko: made the quick/managed state messaging more consistent
- tomoko: hide "Find Codes ..." button from the cheat editor window if
the cheat database is not present
- tomoko: per-game cheats.bml file now goes into the higan/ subfolder
instead of the root folder
So the way the new video system works is you have the following options
on the video settings panel:
Windowed mode: { Aspect correction, Integral scaling, Adaptive }
Fullscreen mode: { Aspect correction, Integral scaling } (and one day,
hopefully Exclusive will be added here)
Whenever you adjust the overscan masking, or you change any of the
windowed or fullscreen mode settings, or you choose a different video
scale from the main menu, or you load a new game, or you unload a game,
or you rotate the display of an emulated system, the resizeViewport
logic will be invoked. This logic will remember the last option you
chose for video scale, and base the new window size on that value as an
upper limit of the new window size.
If you are in windowed mode and have adaptive enabled, it will shrink
the window to fit the contents of the emulated system's video output.
Otherwise, if you are not in integral scaling mode, it will scale the
video as large as possible to fit into the video scaled size you have
selected. Otherwise, it will perform an integral scale and center the
video inside of the viewport.
If you are in fullscreen mode, it's much the same, only there is no
adaptive mode.
A major problem with Xorg is that it's basically impossible to change
the resizability attribute of a window post-creation. You can do it, but
all kinds of crazy issues start popping up. Like if you toggle
fullscreen, then you'll find that the window won't grow past a certain
fairly small size that it's already at, and cannot be shrunk. And the
multipliers will stop expanding the window as large as they should. And
sometimes the UI elements won't be placed in the correct position, or
the video will draw over them. It's a big mess. So I have to keep the
main window always resizable. Also, note that this is not a limitation
of hiro. It's just totally broken in Xorg itself. No amount of fiddling
has ever allowed this to work reliably for me on either GTK+ 2 or Qt 4.
So what this means is ... the adaptive mode window is also resizable.
What happens here is, whenever you drag the corners of the main window
to resize it, or toggle the maximize window button, higan will bypass
the video scale resizing code and instead act as though the adaptive
scaling mode were disabled. So if integral scaling is checked, it'll
begin scaling in integral mode. Otherwise, it'll begin scaling in
non-integral mode.
And because of this flexibility, it no longer made sense for the video
scale menu to be a radio box. I know, it sucks to not see what the
active selection is anymore, but ... say you set the scale to small,
then you accidentally resized the window a little, but want it snapped
back to the proper small resolution dimensions. If it were a radio item,
you couldn't reselect the same option again, because it's already active
and events don't propagate in said case. By turning them into regular
menu options, the video scale menu can be used to restore window sizing.
Errata:
On Windows, the main window blinks a few times on first load. The fix
for that is a safeguard in the video settings code, roughly like so ...
but note you'd need to make a few other changes for this to work against
v103r10:
auto VideoSettings::updateViewport(bool firstRun) -> void {
settings["Video/Overscan/Horizontal"].setValue(horizontalMaskSlider.position());
settings["Video/Overscan/Vertical"].setValue(verticalMaskSlider.position());
settings["Video/Windowed/AspectCorrection"].setValue(windowedModeAspectCorrection.checked());
settings["Video/Windowed/IntegralScaling"].setValue(windowedModeIntegralScaling.checked());
settings["Video/Windowed/AdaptiveSizing"].setValue(windowedModeAdaptiveSizing.checked());
settings["Video/Fullscreen/AspectCorrection"].setValue(fullscreenModeAspectCorrection.checked());
settings["Video/Fullscreen/IntegralScaling"].setValue(fullscreenModeIntegralScaling.checked());
horizontalMaskValue.setText({horizontalMaskSlider.position()});
verticalMaskValue.setText({verticalMaskSlider.position()});
if(!firstRun) presentation->resizeViewport();
}
That'll get it down to one blink, as with v103 official. Not sure I can
eliminate that one extra blink.
I forgot to remove the setResizable toggle on fullscreen mode exit. On
Windows, the main window will end up unresizable after toggling
fullscreen. I missed that one because like I said, toggling resizability
is totally broken on Xorg. You can fix that with the below change:
auto Presentation::toggleFullScreen() -> void {
if(!fullScreen()) {
menuBar.setVisible(false);
statusBar.setVisible(false);
//setResizable(true);
setFullScreen(true);
if(!input->acquired()) input->acquire();
} else {
if(input->acquired()) input->release();
setFullScreen(false);
//setResizable(false);
menuBar.setVisible(true);
statusBar.setVisible(settings["UserInterface/ShowStatusBar"].boolean());
}
resizeViewport();
}
Windows is stealing focus on calls to resizeViewport(), so we need to
deal with that somehow ...
I'm not really concerned about the behavior of shrinking the viewport
below the smallest multiplier for a given system. It might make sense to
snap it to the window size and forego all other scaling, but honestly
... meh. I don't really care. Nobody sane is going to play like that.
|
|
|
Tim Allen
|
7af270aa59 |
Update to v103r09 release.
byuu says:
Changelog:
- gba/apu: fixed wave RAM nibble ordering (fixes audio in Castlevania,
PocketNES)
- emulator: restructured video information to just a single
videoResolution() → VideoResolution function
- returns "projected size" (between 160x144 and 320x240)
- "internal buffer size" (up to 1280x480)
- returns aspect correction multiplier that is to be applied to
the width field
- the value could be < 1.0 to handle systems with taller
pixels; although higan doesn't emulate such a system
- tomoko: all calculations for scaling and overscan masking are done
by the GUI now
- tomoko: aspect correction can be enabled in either windowed or
fullscreen mode separately; moved to Video settings panel
- tomoko: video scaling multipliers (against 320x240) can now me
modified from the default (2,3,4) via the configuration file
- use this as a really barebones way of supporting high DPI
monitors; although the GUI elements won't scale nicely
- if you set a value less than two, or greater than your
resolution divided by 320x240, it's your own fault when things
blow up. I'm not babysitting anyone with advanced config-file
only options.
- tomoko: added new adaptive windowed mode
- when enabled, the window will shrink to eliminate any black
borders when loading a game or changing video settings. The
window will not reposition itself.
- tomoko: added new adaptive fullscreen mode
- when enabled, the integral scaling will be disabled for
fullscreen mode, forcing the video to fill at least one
direction of the video monitor completely.
I expect we will be bikeshedding for the next month on how to describe
the new video options, where they should appear in the GUI, changes
people want, etc ... but suffice to say, I'm happy with the
functionality, so I don't intend to make changes to -what- things do,
but I will entertain better ways to name things.
|
|
|
Tim Allen
|
191a71b291 |
Update to v103r08 release.
byuu says:
Changelog:
- emulator: improved aspect correction accuracy by using
floating-point calculations
- emulator: added videoCrop() function, extended videoSize() to take
cropping parameters¹
- tomoko: the overscan masking function will now actually resize the
viewport²
- gba/cpu: fixed two-cycle delay on triggering DMAs; not running DMAs
when the CPU is stopped
- md/vdp: center video when overscan is disabled
- pce/vce: resize video output from 1140x240 to 1120x240
- tomoko: resize window scaling from 326x240 to 320x240
- tomoko: changed save slot naming and status bar messages to indicate
quick states vs managed states
- tomoko: added increment/decrement quick state hotkeys
- tomoko: save/load quick state hotkeys now save to slots 1-5 instead
of always to 0
- tomoko: increased overscan range from 0-16 to 0-24 (in case you want
to mask the Master System to 240x192)
¹: the idea here was to decouple raw pixels from overscan masking.
Overscan was actually horrifically broken before. The Famicom outputs at
256x240, the Super Famicom at 512x480, and the Mega Drive at 1280x480.
Before, a horizontal overscan mask of 8 would not reduce the Super
Famicom or Mega Drive by nearly as much as the Famicom. WIth the new
videoCrop() function, the internals of pixel size distortions can be
handled by each individual core.
²: furthermore, by taking optional cropping information in
videoSize(), games can scale even larger into the viewport window. So
for example, before the Super Famicom could only scale to 1536x1440. But
by cropping the vertical resolution by 6 (228p effectively, still more
than NTSC can even show), I can now scale to 1792x1596. And wiht aspect
correction, that becomes a perfect 8:7 ratio of 2048x1596, giving me
perfectly crisp pixels without linear interpolation being required.
Errata: for some reason, when I save a new managed state with the SFC
core, the default description is being set to a string of what looks to
be hex numbers. I found the cause ... I'll fix this in the next release.
Note: I'd also like to hide the "find codes..." button if cheats.bml
isn't present, as well as update the SMP TEST register comment from
smp/timing.cpp
|
|
|
Tim Allen
|
561c6413a4 |
Update to v103 final release.
byuu says (in the public annoucement):
With this release, PC Engine, Master System, Game Gear, Mega Drive and
the newly added SuperGrafx support are now quite usable! They're far
from the best emulators for these systems, but with many bugfixes, full
sound emulation, and save state support ... many games are now fully
playable with decent accuracy. The Game Boy Advance emulation is also
now substantially improved with vastly improved sound quality and a new
dot-based PPU renderer. With that change, every single component in
higan is now cycle-based. Regrettably, these changes do carry a ~20%
performance penalty compared to GBA emulation in v102.
Changelog (since the previous release):
- added SuperGrafx emulation
- improved audio band-pass filtering for all emulated systems
- screen rotation is now a hotkey; automatically rotates control
bindings
- screen rotation now supported on the Game Boy Advance as well (used
by a small number of games)
- massive improvements to Mega Drive emulation
- massive code cleanups and rewrites to many CPU emulation cores
(MOS6502, WDC65816, SPC700, etc)
- Famicom, Master System, Mega Drive: added PAL emulation support
- PC Engine, SuperGrafx, Master System, Game Gear, Mega Drive: added
save state support
- PC Engine, SuperGrafx: added PSG sound emulation
- Master System, Game Gear: added PSG sound emulation
- Mega Drive: added Z80 APU emulation [with help from Cydrak]
- Mega Drive: added PSG sound emulation
- Mega Drive: added YM2612 sound emulation [Cydrak]
- Super Famicom: fixed Super Game Boy emulation
- PC Engine: added save RAM support (using per-game PCE-CD backup RAM)
- Game Boy Advance: substantial improvements to audio emulation
quality
- Game Boy Advance: convert scanline-based PPU renderer to a dot-based
renderer
- Game Boy Advance: properly initialize CPU state (fixes Classic NES
Series games)
- Game Boy Advance: MUL timing corrected [Jonas Quinn]
- Mega Drive: emulate special mappers for Phantasy Star IV, Super
Street Fighter II, etc.
- Super Famicom: use darker luma for INIDISP=0 (large improvement to
Final Fantasy III opening)
- Super Famicom: fixed bugs in SMP OR1,AND1 instructions
- cheat code database regrettably removed from official releases; will
be made available separately
- Famicom: PAL emulation improvements [hex\_usr]
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Tim Allen
|
b7006822bf |
Update to v103 WIP release.
byuu says (in the WIP forum):
Changelog:
- higan: cheat codes accept = and ? separators now
- the new preferred code format is: address=value or
address=if-match?value
- the old code format of address/value and address/if-match/value
will continue to work
- higan: cheats.bml is no longer included with the base distribution
- mightymo stopped updating it in 2015, and it's not source code;
it can still be pulled in from older releases
- fc: improved PAL mode timing; use PAL APU timing tables; fix PAL
noise period table [hex\_usr]
- md: support aborting a Z80 bus wait in order to capture save states
without freezing
- note that this will violate accuracy; but in practice a slight
desync is better than an emulator deadlock
- sfc: revert DSP ENDX randomization for now (want to research it more
before deploying in an official release)
- sfc: fix Super Famicom.sys/manifest.bml APU RAM size [hex\_usr]
- tomoko: cleaned up make install rules
- hiro/cocoa: use ABGR for pixel data [Sintendo]
Note: I forgot to change the command-line and drag-and-drop separator
from : to | in this WIP. However, it is corrected in the v103 official
binary and source published on download.byuu.org. Sorry about that, I
know it makes the Git repository history more difficult. I'm not
concerned whether the : → | change is part of v103 or v103r01 in the
repository, and will leave this to your discretion, Screwtape.
I also still need to set the VDP bit to indicate PAL mode in the Mega
Drive core. This is what happens when I have 47 things I have to do,
given how lousy my memory is. I miss things.
|
|
|
Tim Allen
|
8476f35153 |
Update to v102r28 release.
byuu says:
Changelog:
- higan: `Emulator::<Platform::load>()` now returns a struct containing
both a path ID and a string option
- higan: `Emulator::<Platform::load>()` now takes an optional final
argument of string options
- fc: added PAL emulation (finally, only took six years)
- md: added PAL emulation
- md: fixed address parameter to `VDP::Sprite::write()`; fixes missing
sprites in Super Street Fighter II
- md: emulated HIRQ counter; fixes many games
- Super Street Fighter II - status bar
- Altered Beast - status bar
- Sonic the Hedgehog - Labyrinth Zone - water effect
- etc.
- ms: added PAL emulation
- sfc: added the ability to override the default region auto-detection
- sfc: removed "system.region" override setting from `Super Famicom.sys`
- tomoko: added options list to game folder load dialog window
- tomoko: added the ability to specify game folder load options on the
command-line
So, basically ... Sega forced a change with the way region detection
works. You end up with games that can run on multiple regions, and the
content changes accordingly. Bare Knuckle in NTSC-J mode will become
Streets of Rage in NTSC-U mode. Some games can even run in both NTSC and
PAL mode.
In my view, there should be a separate ROM for each region a game was
released in, even if the ROM content were identical. But unfortunately
that's not how things were done by anyone else.
So to support this, the higan load dialog now has a drop-down at the
bottom-right, where you can choose the region to load games from. On the
SNES, it defaults to "Auto", which will pull the region setting from the
manifest, or fall back on NTSC. On the Mega Drive ... unfortunately, I
can't auto-detect the region from the ROM header. $1f0 is supposed to
contain a string like "JUE", but instead you get games like Maui Mallard
that put an "A" there, and other such nonsense. Sega was far more lax
than Nintendo with the ROM header validity. So for now at least, you
have to manually select your region every time you play a Mega Drive
game, thus you have "NTSC-J", "NTSC-U", and "PAL". The same goes for the
Master System for the same reason, but there's only "NTSC" and "PAL"
here. I'm not sure if games have a way to detect domestic vs
international consoles.
And for now ... the Famicom is the same as well, with no auto-detection.
I'd sincerely hope iNES has a header bit for the region, but I didn't
bother with updating icarus to support that yet.
The way to pass these parameters on the command-line is to prefix the
game path with "option:", so for example:
higan "PAL:/path/to/Sonic the Hedgehog (USA, Europe).md"
If you don't provide a prefix, it uses the default (NTSC-J, NTSC, or
Auto.) Obviously, it's not possible to pass parameters with
drag-and-drop, so you will always get the default option in said case.
|
|
|
Tim Allen
|
8af3e4a6e2 |
Update to v102r22 release.
byuu says:
Changelog:
- higan: Emulator::Interface::videoSize() renamed to videoResolution()
- higan: Emulator::Interface::rtcsync() renamed to rtcSynchronize()
- higan: added video display rotation support to Video
- GBA: substantially improved audio mixing
- fixed bug with FIFO 50%/100% volume setting
- now properly using SOUNDBIAS amplitude to control output
frequencies
- reduced quantization noise
- corrected relative volumes between PSG and FIFO channels
- both PSG and FIFO values cached based on amplitude; resulting in
cleaner PCM samples
- treating PSG volume=3 as 200% volume instead of 0% volume now
(unverified: to match mGBA)
- GBA: properly initialize ALL CPU state; including the vital
prefetch.wait=1 (fixes Classic NES series games)
- GBA: added video rotation with automatic key translation support
- PCE: reduced output resolution scalar from 285x242 to 285x240
- the extra two scanlines won't be visible on most TVs; and they
make all other cores look worse
- this is because all other cores output at 240p or less; so they
were all receiving black bars in windowed mode
- tomoko: added "Rotate Display" hotkey setting
- tomoko: changed hotkey multi-key logic to OR instead of AND
- left support for flipping it back inside the core; for those so
inclined; by uncommenting one line in input.hpp
- tomoko: when choosing Settings→Configuration, it will
automatically select the currently loaded system
- for instance, if you're playing a Game Gear game, it'll take you
to the Game Gear input settings
- if no games are loaded, it will take you to the hotkeys panel
instead
- WS(C): merged "Hardware-Vertical", "Hardware-Horizontal" controls
into combined "Hardware"
- WS(C): converted rotation support from being inside the core to
using Emulator::Video
- this lets WS(C) video content scale larger now that it's not
bounded by a 224x224 square box
- WS(C): added automatic key rotation support
- WS(C): removed emulator "Rotate" key (use the general hotkey
instead; I recommend F8 for this)
- nall: added serializer support for nall::Boolean (boolean) types
- although I will probably prefer the usage of uint1 in most cases
|
|
|
Tim Allen
|
a4629e1f64 |
Update to v102r21 release.
byuu says:
Changelog:
- GBA: fixed WININ2 reads, BG3PB writes [Jonas Quinn]
- R65816: added support for yielding/resuming from WAI/STP¹
- SFC: removed status.dmaCounter functionality (also fixes possible
TAS desync issue)
- tomoko: added support for combinatorial inputs [hex\_usr\]²
- nall: fixed missing return value from Arithmetic::operator--
[Hendricks266]
Now would be the time to start looking for major regressions with the
new GBA PPU renderer, I suppose ...
¹: this doesn't matter for the master thread (SNES CPU), but is
important for slave threads (SNES SA1). If you try to save a state and
the SA1 is inside of a WAI instruction, it will get stuck there forever.
This was causing attempts to create a save state in Super Bomberman
- Panic Bomber W to deadlock the emulator and crash it. This is now
finally fixed.
Note that I still need to implement similar functionality into the Mega
Drive 68K and Z80 cores. They still have the possibility of deadlocking.
The SNES implementation was more a dry-run test for this new
functionality. This possible crashing bug in the Mega Drive core is the
major blocking bug for a new official release.
²: many, many thanks to hex\_usr for coming up with a really nice
design. I mostly implemented it the exact same way, but with a few tiny
differences that don't really matter (display " and ", " or " instead of
" & ", " | " in the input settings windows; append → bind;
assignmentName changed to displayName.)
The actual functionality is identical to the old higan v094 and earlier
builds. Emulated digital inputs let you combine multiple possible keys
to trigger the buttons. This is OR logic, so you can map to eg
keyboard.up OR gamepad.up for instance. Emulated analog inputs always
sum together. Emulated rumble outputs will cause all mapped devices to
rumble, which is probably not at all useful but whatever. Hotkeys use
AND logic, so you have to press every key mapped to trigger them. Useful
for eg Ctrl+F to trigger fullscreen.
Obviously, there are cases where OR logic would be nice for hotkeys,
too. Eg if you want both F11 and your gamepad's guide button to trigger
the fullscreen toggle. Unfortunately, this isn't supported, and likely
won't ever be in tomoko. Something I might consider is a throw switch in
the configuration file to swap between AND or OR logic for hotkeys, but
I'm not going to allow construction of mappings like "(Keyboard.Ctrl and
Keyboard.F) or Gamepad.Guide", as that's just too complicated to code,
and too complicated to make a nice GUI to set up the mappings for.
|
|
|
Tim Allen
|
ee7662a8be |
Update to v102r04 release.
byuu says:
Changelog:
- Super Game Boy support is functional once again
- new GameBoy::SuperGameBoyInterface class
- system.(dmg,cgb,sgb) is now Model::(Super)GameBoy(Color) ala the PC
Engine
- merged WonderSwanInterface, WonderSwanColorInterface shared
functions to WonderSwan::Interface
- merged GameBoyInterface, GameBoyColorInterface shared functions to
GameBoy::Interface
- Interface::unload() now calls Interface::save() for Master System,
Game Gear, Mega Drive, PC Engine, SuperGrafx
- PCE: emulated PCE-CD backup RAM; stored per-game as save.ram (2KiB
file)
- this means you can now save your progress in games like Neutopia
- the PCE-CD I/O registers like BRAM write protect are not
emulated yet
- PCE: IRQ sources now hold the IRQ line state, instead of the CPU
holding it
- this fixes most SuperGrafx games, which were fighting over the
VDC IRQ line previously
- PCE: CPU I/O $14xx should return the pending IRQ bits even if IRQs
are disabled
- PCE: VCE and the VDCs now synchronize to each other; fixes pixel
widths in all games
- PCE: greatly increased the accuracy of the VPC priority selection
code (windows may be buggy still)
- HuC6280: PLA, PLX, PLY should set Z, N flags; fixes many game bugs
[Jonas Quinn]
The big thing I wanted to do was enslave the VDC(s) to the VCE. But
unfortunately, I forgot about the asynchronous DMA channels that each
VDC supports, so this isn't going to be possible I'm afraid.
In the most demanding case, Daimakaimura in-game, we're looking at 85fps
on my Xeon E3 1276v3. So ... not great, and we don't even have sound
connected yet.
We are going to have to profile and optimize this code once sound
emulation and save states are in.
Basically, think of it like this: the VCE, VDC0, and VDC1 all have the
same overhead, scheduling wise (which is the bulk of the performance
loss) as the dot-renderer for the SNES core. So it's like there's three
bsnes-accuracy PPU threads running just for video.
-----
Oh, just a fair warning ... the hooks for the SGB are a work in
progress.
If anyone is working on higan or a fork and want to do something similar
to it, don't use it as a template, at least not yet.
Right now, higan looks like this:
- Emulator::Video handles the platform→videoRefresh calls
- Emulator::Audio handles the platform→audioSample calls
- each core hard-codes the platform→inputPoll, inputRumble calls
- each core hard-codes calls to path, open, load to process files
- dipSettings and notify are specialty hacks, neither are even hooked
up right now to anything
With the SGB, it's an emulation core inside an emulation core, so
ideally you want to hook all of those functions. Emulator::Video and
Emulator::Audio aren't really abstractions over that, as the GB core
calls them and we have to special case not calling them in SGB mode.
The path, open, load can be implemented without hooks, thanks to the UI
only using one instance of Emulator::Platform for all cores. All we have
to do is override the folder path ID for the "Game Boy.sys" folder, so
that it picks "Super Game Boy.sfc/" and loads its boot ROM instead.
That's just a simple argument to GameBoy::System::load() and we're done.
dipSettings, notify and inputRumble don't matter. But we do also have to
hook inputPoll as well.
The nice idea would be for SuperFamicom::ICD2 to inherit from
Emulator::Platform and provide the desired functions that we need to
overload. After that, we'd just need the GB core to keep an abstraction
over the global Emulator::platform\* handle, to select between the UI
version and the SFC::ICD2 version.
However ... that doesn't work because of Emulator::Video and
Emulator::Audio. They would also have to gain an abstraction over
Emulator::platform\*, and even worse ... you'd have to constantly swap
between the two so that the SFC core uses the UI, and the GB core uses
the ICD2.
And so, for right now, I'm checking Model::SuperGameBoy() -> bool
everywhere, and choosing between the UI and ICD2 targets that way. And
as such, the ICD2 doesn't really need Emulator::Platform inheritance,
although it certainly could do that and just use the functions it needs.
But the SGB is even weirder, because we need additional new signals
beyond just Emulator::Platform, like joypWrite(), etc.
I'd also like to work on the Emulator::Stream for the SGB core. I don't
see why we can't have the GB core create its own stream, and let the
ICD2 just use that instead. We just have to be careful about the ICD2's
CPU soft reset function, to make sure the GB core's Stream object
remains valid. What I think that needs is a way to release an
Emulator::Stream individually, rather than calling
Emulator::Audio::reset() to do it. They are shared\_pointer objects, so
I think if I added a destructor function to remove it from
Emulator::Audio::streams, then that should work.
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Tim Allen
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186f008574 |
Update to v102r03 release.
byuu says: Changelog: - PCE: split VCE from VDC - HuC6280: changed bus from (uint21 addr) to (uint8 bank, uint13 addr) - added SuperGrafx emulation (adds secondary VDC, plus new VPC) The VDC now has no concept of the actual display raster timing, and instead is driven by Vpulse (start of frame) and Hpulse (start of scanline) signals from the VCE. One still can't render the start of the next scanline onto the current scanline through overly aggressive timings, but it shouldn't be too much more difficult to allow that to occur now. This process incurs quite a major speed hit, so low-end systems with Atom CPUs can't run things at 60fps anymore. The timing needs a lot of work. The pixels end up very jagged if the VCE doesn't output batches of 2-4 pixels at a time. But this should not be a requirement at all, so I'm not sure what's going wrong there. Yo, Bro and the 512-width mode of TV Sports Basketball is now broken as a result of these changes, and I'm not sure why. To load SuperGrafx games, you're going to have to change the .pce extensions to .sg or .sgx. Or you can manually move the games from the PC Engine folder to the SuperGrafx folder and change the game folder extensions. I have no way to tell the games apart. Mednafen uses CRC32 comparisons, and I may consider that since there's only five games, but I'm not sure yet. The only SuperGrafx game that's playable right now is Aldynes. And the priorities are all screwed up. I don't understand how the windows or the priorities work at all from sgxtech.txt, so ... yeah. It's pretty broken, but it's a start. I could really use some help with this, as I'm very lost right now with rendering :/ ----- Note that the SuperGrafx is technically its own system, it's not an add-on. As such, I'm giving it a separate .sys folder, and a separate library. There's debate over how to name this thing. "SuperGrafx" appears more popular than "Super Grafx". And you might also call it the "PC Engine SuperGrafx", but I decided to leave off the prefix so it appears more distinct. |
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Tim Allen
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bdc100e123 |
Update to v102r02 release.
byuu says:
Changelog:
- I caved on the `samples[] = {0.0}` thing, but I'm very unhappy about it
- if it's really invalid C++, then GCC needs to stop accepting it
in strict `-std=c++14` mode
- Emulator::Interface::Information::resettable is gone
- Emulator::Interface::reset() is gone
- FC, SFC, MD cores updated to remove soft reset behavior
- split GameBoy::Interface into GameBoyInterface,
GameBoyColorInterface
- split WonderSwan::Interface into WonderSwanInterface,
WonderSwanColorInterface
- PCE: fixed off-by-one scanline error [hex_usr]
- PCE: temporary hack to prevent crashing when VDS is set to < 2
- hiro: Cocoa: removed (u)int(#) constants; converted (u)int(#)
types to (u)int_(#)t types
- icarus: replaced usage of unique with strip instead (so we don't
mess up frameworks on macOS)
- libco: added macOS-specific section marker [Ryphecha]
So ... the major news this time is the removal of the soft reset
behavior. This is a major!! change that results in a 100KiB diff file,
and it's very prone to accidental mistakes!! If anyone is up for
testing, or even better -- looking over the code changes between v102r01
and v102r02 and looking for any issues, please do so. Ideally we'll want
to test every NES mapper type and every SNES coprocessor type by loading
said games and power cycling to make sure the games are all cleanly
resetting. It's too big of a change for me to cover there not being any
issues on my own, but this is truly critical code, so yeah ... please
help if you can.
We technically lose a bit of hardware documentation here. The soft reset
events do all kinds of interesting things in all kinds of different
chips -- or at least they do on the SNES. This is obviously not ideal.
But in the process of removing these portions of code, I found a few
mistakes I had made previously. It simplifies resetting the system state
a lot when not trying to have all the power() functions call the reset()
functions to share partial functionality.
In the future, the goal will be to come up with a way to add back in the
soft reset behavior via keyboard binding as with the Master System core.
What's going to have to happen is that the key binding will have to send
a "reset pulse" to every emulated chip, and those chips are going to
have to act independently to power() instead of reusing functionality.
We'll get there eventually, but there's many things of vastly greater
importance to work on right now, so it'll be a while. The information
isn't lost ... we'll just have to pull it out of v102 when we are ready.
Note that I left the SNES reset vector simulation code in, even though
it's not possible to trigger, for the time being.
Also ... the Super Game Boy core is still disconnected. To be honest, it
totally slipped my mind when I released v102 that it wasn't connected
again yet. This one's going to be pretty tricky to be honest. I'm
thinking about making a third GameBoy::Interface class just for SGB, and
coming up with some way of bypassing platform-> calls when in this
mode.
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Tim Allen
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c40e9754bc |
Update to v102r01 release.
byuu says:
Changelog:
- MS, MD, PCE: remove controllers from scheduler in destructor
[hex_usr]
- PCE: no controller should return all bits set (still causing errant
key presses when swapping gamepads)
- PCE: emulate MDR for hardware I/O $0800-$17ff
- PCE: change video resolution to 1140x242
- PCE: added tertiary background Vscroll register (secondary cache)
- PCE: create classes out of VDC VRAM, SATB, CRAM for cleaner access
and I/O registers
- PCE: high bits of CRAM read should be set
- PCE: partially emulated VCE display registers: color frequency, HDS,
HDW, VDS, VDW
- PCE: 32-width sprites now split to two 16-width sprites to handle
overflow properly
- PCE: hopefully emulated sprite zero hit correctly (it's not well
documented, and not often used)
- PCE: trigger line coincidence interrupts during the previous
scanline's Hblank period
- tomoko: raise viewport from 320x240 to 326x242 to accommodate PC
Engine's max resolution
- nall: workaround for Clang compilation bug that can't figure out
that a char is an integral data type
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Tim Allen
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26bd7590ad |
Update to v101r32 release.
byuu says: Changelog: - SMS: fixed controller connection bug - SMS: fixed Z80 reset bug - PCE: emulated HuC6280 MMU - PCE: emulated HuC6280 RAM - PCE: emulated HuCard ROM reading - PCE: implemented 178 instructions - tomoko: removed "soft reset" functionality - tomoko: moved "power cycle" to just above "unload" option I'm not sure of the exact number of HuC6280 instructions, but it's less than 260. Many of the ones I skipped are HuC6280-originals that I don't know how to emulate just yet. I'm also really unsure about the zero page stuff. I believe we should be adding 0x2000 to the addresses to hit page 1, which is supposed to be mapped to the zero page (RAM). But when I look at turboEMU's source, I have no clue how the hell it could possibly be doing that. It looks to be reading from page 0, which is almost always ROM, which would be ... really weird. I also don't know if I've emulated the T mode opcodes correctly or not. The documentation on them is really confusing. |
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Tim Allen
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bf90bdfcc8 |
Update to v101r31 release.
byuu says:
Changelog:
- converted Emulator::Interface::Bind to Emulator::Platform
- temporarily disabled SGB hooks
- SMS: emulated Game Gear palette (latching word-write behavior not
implemented yet)
- SMS: emulated Master System 'Reset' button, Game Gear 'Start' button
- SMS: removed reset() functionality, driven by the mappable input now
instead
- SMS: split interface class in two: one for Master System, one for
Game Gear
- SMS: emulated Game Gear video cropping to 160x144
- PCE: started on HuC6280 CPU core—so far only registers, NOP
instruction has been implemented
Errata:
- Super Game Boy support is broken and thus disabled
- if you switch between Master System and Game Gear without
restarting, bad things happen:
- SMS→GG, no video output on the GG
- GG→SMS, no input on the SMS
I'm not sure what's causing the SMS\<-\>GG switch bug, having a hard
time debugging it. Help would be very much appreciated, if anyone's up
for it. Otherwise I'll keep trying to track it down on my end.
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Tim Allen
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0ad70a30f8 |
Update to v101r30 release.
byuu says:
Changelog:
- SMS: added cartridge ROM/RAM mirroring (fixes Alex Kidd)
- SMS: fixed 8x16 sprite mode (fixes Wonder Boy, Ys graphics)
- Z80: emulated "ex (sp),hl" instruction
- Z80: fixed INx NF (should be set instead of cleared)
- Z80: fixed loop condition check for CPxR, INxR, LDxR, OTxR (fixes
walking in Wonder Boy)
- SFC: removed Debugger and sfc/debugger.hpp
- icarus: connected MS, GG, MD importing to the scan dialog
- PCE: added emulation skeleton to higan and icarus
At this point, Master System games are fairly highly compatible, sans
audio. Game Gear games are running, but I need to crop the resolution
and support the higher color palette that they can utilize. It's really
something else the way they handled the resolution shrink on that thing.
The last change is obviously going to be the biggest news.
I'm very well aware it's not an ideal time to start on a new emulation
core, with the MS and MD cores only just now coming to life with no
audio support.
But, for whatever reason, my heart's really set on working on the PC
Engine. I wanted to write the final higan skeleton core, and get things
ready so that whenever I'm in the mood to work on the PCE, I can do so.
The skeleton is far and away the most tedious and obnoxious part of the
emulator development, because it's basically all just lots of
boilerplate templated code, lots of new files to create, etc.
I really don't know how things are going to proceed ... but I can say
with 99.9% certainty that this will be the final brand new core ever
added to higan -- at least one written by me, that is. This was
basically the last system from my childhood that I ever cared about.
It's the last 2D system with games that I really enjoy playing. No other
system is worth dividing my efforts and reducing the quality and amount
of time to work on the systems I have.
In the future, there will be potential for FDS, Mega CD and PCE-CD
support. But those will all be add-ons, and they'll all be really
difficult and challenge the entire design of higan's UI (it's entirely
cartridge-driven at this time.) None of them will be entirely new cores
like this one.
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Tim Allen
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5bdf55f08f |
Update to v101r25 release.
byuu says: Changelog: - SMS: emulated VDP mode 4 graphical output (background, sprites) - added $(windres) to icarus as well I'm sure the VDP emulation is still really, really buggy, but essentially I handle: - mode 4 rendering - background scrolling - background hscroll lock - background vscroll lock - background nametable relocation - sprite nametable relocation - sprite tiledata relocation - sprite 192-line y=0xd0 edge case (end sprite rendering) - sprite 8-pixel x-coordinate displacement - sprite extended size (height only in mode 4) - sprite overflow - sprite collision - left column masking - display disable - backdrop color - 192, 224, 240 height I do not support: - mode 2 rendering - sprite zoom - disallowing 240 height in NTSC mode - PAL mode - probably lots more |
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Tim Allen
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e30780bb72 |
Update to v101r25 release.
byuu says:
Changelog:
- Makefile: added $(windres), -lpthread to Windows port
- GBA: WAITCNT.prefetch is not writable (should fix Donkey Kong: King
of Swing) \[endrift\]
- SMS: fixed hcounter shift value \[hex\_usr\]
- SMS: emulated interrupts (reset button isn't hooked up anywhere, not
sure where to put it yet)
This WIP actually took a really long time because the documentation on
SMS interrupts was all over the place. I'm hoping I've emulated them
correctly, but I honestly have no idea. It's based off my best
understanding from four or five different sources. So it's probably
quite buggy.
However, a few interrupts fire in Sonic the Hedgehog, so that's
something to start with. Now I just have to hope I've gotten some games
far enough in that I can start seeing some data in the VDP VRAM. I need
that before I can start emulating graphics mode 4 to get some actual
screen output.
Or I can just say to hell with it and use a "Hello World" test ROM.
That'd probably be smarter.
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Tim Allen
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4d2e17f9c0 |
Update to v101r09 release.
byuu says:
Sorry, two WIPs in one day. Got excited and couldn't wait.
Changelog:
- ADDQ, SUBQ shouldn't update flags when targeting an address register
- ADDA should sign extend effective address reads
- JSR was pushing the PC too early
- some improvements to 8-bit register reads on the VDP (still needs
work)
- added H/V counter reads to the VDP IO port region
- icarus: added support for importing Master System and Game Gear ROMs
- tomoko: added library sub-menus for each manufacturer
- still need to sort Game Gear after Mega Drive somehow ...
The sub-menu system actually isn't all that bad. It is indeed a bit more
annoying, but not as annoying as I thought it was going to be. However,
it looks a hell of a lot nicer now.
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Tim Allen
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043f6a8b33 |
Update to v101r08 release.
byuu says:
Changelog:
- 68K: fixed read-modify-write instructions
- 68K: fixed ADDX bug (using wrong target)
- 68K: fixed major bug with SUB using wrong argument ordering
- 68K: fixed sign extension when reading address registers from
effective addressing
- 68K: fixed sign extension on CMPA, SUBA instructions
- VDP: improved OAM sprite attribute table caching behavior
- VDP: improved DMA fill operation behavior
- added Master System / Game Gear stubs (needed for developing the Z80
core)
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Tim Allen
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ffd150735b |
Update to v101r07 release.
byuu says: Added VDP sprite rendering. Can't get any games far enough in to see if it actually works. So in other words, it doesn't work at all and is 100% completely broken. Also added 68K exceptions and interrupts. So far only the VDP interrupt is present. It definitely seems to be firing in commercial games, so that's promising. But the implementation is almost certainly completely wrong. There is fuck all of nothing for documentation on how interrupts actually work. I had to find out the interrupt vector numbers from reading the comments from the Sonic the Hedgehog disassembly. I have literally no fucking clue what I0-I2 (3-bit integer priority value in the status register) is supposed to do. I know that Vblank=6, Hblank=4, Ext(gamepad)=2. I know that at reset, SR.I=7. I don't know if I'm supposed to block interrupts when I is >, >=, <, <= to the interrupt level. I don't know what level CPU exceptions are supposed to be. Also implemented VDP regular DMA. No idea if it works correctly since none of the commercial games run far enough to use it. So again, it's horribly broken for usre. Also improved VDP fill mode. But I don't understand how it takes byte-lengths when the bus is 16-bit. The transfer times indicate it's actually transferring at the same speed as the 68K->VDP copy, strongly suggesting it's actually doing 16-bit transfers at a time. In which case, what happens when you set an odd transfer length? Also, both DMA modes can now target VRAM, VSRAM, CRAM. Supposedly there's all kinds of weird shit going on when you target VSRAM, CRAM with VDP fill/copy modes, but whatever. Get to that later. Also implemented a very lazy preliminary wait mechanism to to stall out a processor while another processor exerts control over the bus. This one's going to be a major work in progress. For one, it totally breaks the model I use to do save states with libco. For another, I don't know if a 68K->VDP DMA instantly locks the CPU, or if it the CPU could actually keep running if it was executing out of RAM when it started the DMA transfer from ROM (eg it's a bus busy stall, not a hard chip stall.) That'll greatly change how I handle the waiting. Also, the OSS driver now supports Audio::Latency. Sound should be even lower latency now. On FreeBSD when set to 0ms, it's absolutely incredible. Cannot detect latency whatsoever. The Mario jump sound seems to happen at the very instant I hear my cherry blue keyswitch activate. |
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Tim Allen
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427bac3011 |
Update to v101r06 release.
byuu says:
I reworked the video sizing code. Ended up wasting five fucking hours
fighting GTK. When you call `gtk_widget_set_size_request`, it doesn't
actually happen then. This is kind of a big deal because when I then go
to draw onto the viewport, the actual viewport child window is still the
old size, so the image gets distorted. It recovers in a frame or so with
emulation, but if we were to put a still image on there, it would stay
distorted.
The first thought is, `while(gtk_events_pending())
gtk_main_iteration_do(false);` right after the `set_size_request`. But
nope, it tells you there's no events pending. So then you think, go
deeper, use `XPending()` instead. Same thing, GTK hasn't actually issued
the command to Xlib yet. So then you think, if the widget is realized,
just call a blocking `gtk_main_iteration`. One call does nothing, two
calls results in a deadlock on the second one ... do it before program
startup, and the main window will never appear. Great.
Oh, and it's not just the viewport. It's also the widget container area
of the windows, as well as the window itself, as well as the fullscreen
mode toggle effect. They all do this.
For the latter three, I couldn't find anything that worked, so I just
added 20ms loops of constantly calling `gtk_main_iteration_do(false)`
after each one of those things. The downside here is toggling the status
bar takes 40ms, so you'll see it and it'll feel a tiny bit sluggish.
But I can't have a 20ms wait on each widget resize, that would be
catastrophic to performance on windows with lots of widgets.
I tried hooking configure-event and size-allocate, but they were very
unreliable. So instead I ended up with a loop that waits up to a maximm
of 20ms that inspects the `widget->allocation.(width,height)` values
directly and waits for them to be what we asked for with
`set_size_request`.
There was some extreme ugliness in GTK with calling
`gtk_main_iteration_do` recursively (`hiro::Widget::setGeometry` is
called recursively), so I had to lock it to only happen on the top level
widgets (the child ones should get resized while waiting on the
top-level ones, so it should be fine in practice), and also only run it
on realized widgets.
Even still, I'm getting ~3 timeouts when opening the settings dialog in
higan, but no other windows. But, this is the best I can do for now.
And the reason for all of this pain? Yeah, updated the video code.
So the Emulator::Interface now has this:
struct VideoSize { uint width, height; }; //or requiem for a tuple
auto videoSize() -> VideoSize;
auto videoSize(uint width, uint height, bool arc) -> VideoSize;
The first function, for now, is just returning the literal surface size.
I may remove this ... one thing I want to allow for is cores that send
different texture sizes based on interlace/hires/overscan/etc settings.
The second function is more interesting. Instead of having the UI trying
to figure out sizing, I figure the emulation cores can do a better job
and we can customize it per-core now. So it gets the window's width and
height, and whether the user asked for aspect correction, and then
computes the best width/height ratio possible. For now they're all just
doing multiples of a 1x scale to the UI 2x,3x,4x modes.
We still need a third function, which will probably be what I repurpose
videoSize() for: to return the 'effective' size for pixel shaders, to
then feed into ruby, to then feed into quark, to then feed into our
shaders. Since shaders use normalized coordinates for pixel fetching,
this should work out just fine. The real texture size will be exposed to
quark shaders as well, of course.
Now for the main window ... it's just hard-coded to be 640x480, 960x720,
1280x960 for now. It works nicely for some cores on some modes, not so
much for others. Work in progress I guess.
I also took the opportunity to draw the about dialog box logo on the
main window. Got a bit fancy and used the old spherical gradient and
impose functionality of nall/image on it. Very minor highlight, nothing
garish. Just something nicer than a solid black window.
If you guys want to mess around with sizes, placements, and gradient
styles/colors/shapes ... feel free. If you come up with something nicer,
do share.
That's what led to all the GTK hell ... the logo wasn't drawing right as
you resized the window. But now it is, though I am not at all happy with
the hacking I had to do.
I also had to improve the video update code as a result of this:
- when you unload a game, it blacks out the screen
- if you are not quitting the emulator, it'll draw the logo; if
you are, it won't
- when you load a game, it black out the logo
These options prevent any unsightliness from resizing the viewport with
image data on it already
I need to redraw the logo when toggling fullscreen with no game loaded
as well for Windows, it seems.
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Tim Allen
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1df2549d18 |
Update to v101r04 release.
byuu says:
Changelog:
- pulled the (u)intN type aliases into higan instead of leaving them
in nall
- added 68K LINEA, LINEF hooks for illegal instructions
- filled the rest of the 68K lambda table with generic instance of
ILLEGAL
- completed the 68K disassembler effective addressing modes
- still unsure whether I should use An to decode absolute
addresses or not
- pro: way easier to read where accesses are taking place
- con: requires An to be valid; so as a disassembler it does a
poor job
- making it optional: too much work; ick
- added I/O decoding for the VDP command-port registers
- added skeleton timing to all five processor cores
- output at 1280x480 (needed for mixed 256/320 widths; and to handle
interlace modes)
The VDP, PSG, Z80, YM2612 are all stepping one clock at a time and
syncing; which is the pathological worst case for libco. But they also
have no logic inside of them. With all the above, I'm averaging around
250fps with just the 68K core actually functional, and the VDP doing a
dumb "draw white pixels" loop. Still way too early to tell how this
emulator is going to perform.
Also, the 320x240 mode of the Genesis means that we don't need an aspect
correction ratio. But we do need to ensure the output window is a
multiple 320x240 so that the scale values work correctly. I was
hard-coding aspect correction to stretch the window an additional \*8/7.
But that won't work anymore so ... the main higan window is now 640x480,
960x720, or 1280x960. Toggling aspect correction only changes the video
width inside the window.
It's a bit jarring ... the window is a lot wider, more black space now
for most modes. But for now, it is what it is.
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Tim Allen
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e39987a3e3 |
Update to v101 release.
byuu says (in the public announcement):
Not a large changelog this time, sorry. This release is mostly to fix
the SA-1 issue, and to get some real-world testing of the new scheduler
model. Most of the work in the past month has gone into writing a 68000
CPU core; yet it's still only about half-way finished.
Changelog (since the previous release):
- fixed SNES SA-1 IRQ regression (fixes Super Mario RPG level-up
screen)
- new scheduler for all emulator cores (precision of 2^-127)
- icarus database adds nine new SNES games
- added Input/Frequency to settings file (allows simulation of
latency)
byuu says (in the WIP forum):
Changelog:
- in 32-bit mode, Thread uses uint64\_t with 2^-63 time units (10^-7
precision in the worst case)
- nearly ten times the precision of an attosecond
- in 64-bit mode, Thread uses uint128\_t with 2^-127 time units
(10^-26 precision in the worst case)
- far more accurate than yoctoseconds; almost closing in on planck
time
Note: a quartz crystal is accurate to 10^-4 or 10^-5. A cesium fountain
atomic clock is accurate to 10^-15. So ... yeah. 2^-63 was perfectly
fine; but there was no speed penalty whatsoever for using uint128\_t in
64-bit mode, so why not?
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Tim Allen
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f5e5bf1772 |
Update to v100r16 release.
byuu says: (Windows users may need to include <sys/time.h> at the top of nall/chrono.hpp, not sure.) Unchangelog: - forgot to add the Scheduler clock=0 fix because I have the memory of a goldfish Changelog: - new icarus database with nine additional games - hiro(GTK,Qt) won't constantly write its settings.bml file to disk anymore - added latency simulator for fun (settings.bml => Input/Latency in milliseconds) So the last one ... I wanted to test out nall::chrono, and I was also thinking that by polling every emulated frame, it's pretty wasteful when you are using Fast Forward and hitting 200+fps. As I've said before, calls to ruby::input::poll are not cheap. So to get around this, I added a limiter so that if you called the hardware poll function within N milliseconds, it'll return without doing any actual work. And indeed, that increases my framerate of Zelda 3 uncapped from 133fps to 142fps. Yay. But it's not a "real" speedup, as it only helps you when you exceed 100% speed (theoretically, you'd need to crack 300% speed since the game itself will poll at 16ms at 100% speed, but yet it sped up Zelda 3, so who am I to complain?) I threw the latency value into the settings file. It should be 16, but I set it to 5 since that was the lowest before it started negatively impacting uncapped speeds. You're wasting your time and CPU cycles setting it lower than 5, but if people like placebo effects it might work. Maybe I should let it be a signed integer so people can set it to -16 and think it's actually faster :P (I'm only joking. I took out the 96000hz audio placebo effect as well. Not really into psychological tricks anymore.) But yeah seriously, I didn't do this to start this discussion again for the billionth time. Please don't go there. And please don't tell me this WIP has higher/lower latency than before. I don't want to hear it. The only reason I bring it up is for the fun part that is worth discussing: put up or shut up time on how sensitive you are to latency! You can set the value above 5 to see how games feel. I personally can't really tell a difference until about 50. And I can't be 100% confident it's worse until about 75. But ... when I set it to 150, games become "extra difficult" ... the higher it goes, the worse it gets :D For this WIP, I've left no upper limit cap. I'll probably set a cap of something like 500ms or 1000ms for the official release. Need to balance user error/trolling with enjoyability. I'll think about it. [...] Now, what I worry about is stupid people seeing it and thinking it's an "added latency" setting, as if anyone would intentionally make things worse by default. This is a limiter. So if 5ms have passed since the game last polled, and that will be the case 99.9% of the time in games, the next poll will happen just in time, immediately when the game polls the inputs. Thus, a value below 1/<framerate>ms is not only pointless, if you go too low it will ruin your fast forward max speeds. I did say I didn't want to resort to placebo tricks, but I also don't want to spark up public discussion on this again either. So it might be best to default Input/Latency to 0ms, and internally have a max(5, latency) wrapper around the value. |
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Tim Allen
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ca277cd5e8 |
Update to v100r14 release.
byuu says:
(Windows: compile with -fpermissive to silence an annoying error. I'll
fix it in the next WIP.)
I completely replaced the time management system in higan and overhauled
the scheduler.
Before, processor threads would have "int64 clock"; and there would
be a 1:1 relationship between two threads. When thread A ran for X
cycles, it'd subtract X * B.Frequency from clock; and when thread B ran
for Y cycles, it'd add Y * A.Frequency from clock. This worked well
and allowed perfect precision; but it doesn't work when you have more
complicated relationships: eg the 68K can sync to the Z80 and PSG; the
Z80 to the 68K and PSG; so the PSG needs two counters.
The new system instead uses a "uint64 clock" variable that represents
time in attoseconds. Every time the scheduler exits, it subtracts
the smallest clock count from all threads, to prevent an overflow
scenario. The only real downside is that rounding errors mean that
roughly every 20 minutes, we have a rounding error of one clock cycle
(one 20,000,000th of a second.) However, this only applies to systems
with multiple oscillators, like the SNES. And when you're in that
situation ... there's no such thing as a perfect oscillator anyway. A
real SNES will be thousands of times less out of spec than 1hz per 20
minutes.
The advantages are pretty immense. First, we obviously can now support
more complex relationships between threads. Second, we can build a
much more abstracted scheduler. All of libco is now abstracted away
completely, which may permit a state-machine / coroutine version of
Thread in the future. We've basically gone from this:
auto SMP::step(uint clocks) -> void {
clock += clocks * (uint64)cpu.frequency;
dsp.clock -= clocks;
if(dsp.clock < 0 && !scheduler.synchronizing()) co_switch(dsp.thread);
if(clock >= 0 && !scheduler.synchronizing()) co_switch(cpu.thread);
}
To this:
auto SMP::step(uint clocks) -> void {
Thread::step(clocks);
synchronize(dsp);
synchronize(cpu);
}
As you can see, we don't have to do multiple clock adjustments anymore.
This is a huge win for the SNES CPU that had to update the SMP, DSP, all
peripherals and all coprocessors. Likewise, we don't have to synchronize
all coprocessors when one runs, now we can just synchronize the active
one to the CPU.
Third, when changing the frequencies of threads (think SGB speed setting
modes, GBC double-speed mode, etc), it no longer causes the "int64
clock" value to be erroneous.
Fourth, this results in a fairly decent speedup, mostly across the
board. Aside from the GBA being mostly a wash (for unknown reasons),
it's about an 8% - 12% speedup in every other emulation core.
Now, all of this said ... this was an unbelievably massive change, so
... you know what that means >_> If anyone can help test all types of
SNES coprocessors, and some other system games, it'd be appreciated.
----
Lastly, we have a bitchin' new about screen. It unfortunately adds
~200KiB onto the binary size, because the PNG->C++ header file
transformation doesn't compress very well, and I want to keep the
original resource files in with the higan archive. I might try some
things to work around this file size increase in the future, but for now
... yeah, slightly larger archive sizes, sorry.
The logo's a bit busted on Windows (the Label control's background
transparency and alignment settings aren't working), but works well on
GTK. I'll have to fix Windows before the next official release. For now,
look on my Twitter feed if you want to see what it's supposed to look
like.
----
EDIT: forgot about ICD2::Enter. It's doing some weird inverse
run-to-save thing that I need to implement support for somehow. So, save
states on the SGB core probably won't work with this WIP.
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Tim Allen
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3dd1aa9c1b |
Update to v100r02 release.
byuu says: Sigh ... I'm really not a good person. I'm inherently selfish. My responsibility and obligation right now is to work on loki, and then on the Tengai Makyou Zero translation, and then on improving the Famicom emulation. And yet ... it's not what I really want to do. That shouldn't matter; I should work on my responsibilities first. Instead, I'm going to be a greedy, self-centered asshole, and work on what I really want to instead. I'm really sorry, guys. I'm sure this will make a few people happy, and probably upset even more people. I'm also making zero guarantees that this ever gets finished. As always, I wish I could keep these things secret, so if I fail / give up, I could just drop it with no shame. But I would have to cut everyone out of the WIP process completely to make it happen. So, here goes ... This WIP adds the initial skeleton for Sega Mega Drive / Genesis emulation. God help us. (minor note: apparently the new extension for Mega Drive games is .md, neat. That's what I chose for the folders too. I thought it was .smd, so that'll be fixed in icarus for the next WIP.) (aside: this is why I wanted to get v100 out. I didn't want this code in a skeleton state in v100's source. Nor did I want really broken emulation, which the first release is sure to be, tarring said release.) ... So, basically, I've been ruminating on the legacy I want to leave behind with higan. 3D systems are just plain out. I'm never going to support them. They're too complex for my abilities, and they would run too slowly with my design style. I'm not willing to compromise my design ideals. And I would never want to play a 3D game system at native 240p/480i resolution ... but 1080p+ upscaling is not accurate, so that's a conflict I want to avoid entirely. It's also never going to emulate computer systems (X68K, PC-98, FM-Towns, etc) because holy shit that would completely destroy me. It's also never going emulate arcade machines. So I think of higan as a collection of 2D emulators for consoles and handhelds. I've gone over every major 2D gaming system there is, looking for ones with games I actually care about and enjoy. And I basically have five of those systems supported already. Looking at the remaining list, I see only three systems left that I have any interest in whatsoever: PC-Engine, Master System, Mega Drive. Again, I'm not in any way committing to emulating any of these, but ... if I had all of those in higan, I think I'd be content to really, truly, finally stop writing more emulators for the rest of my life. And so I decided to tackle the most difficult system first. If I'm successful, the Z80 core should cover a lot of the work on the SMS. And the HuC6280 should land somewhere between the NES and SNES in terms of difficulty ... closer to the NES. The systems that just don't appeal to me at all, which I will never touch, include, but are not limited to: * Atari 2600/5200/7800 * Lynx * Jaguar * Vectrex * Colecovision * Commodore 64 * Neo-Geo * Neo-Geo Pocket / Color * Virtual Boy * Super A'can * 32X * CD-i * etc, etc, etc. And really, even if something were mildly interesting in there ... we have to stop. I can't scale infinitely. I'm already way past my limit, but I'm doing this anyway. Too many cores bloats everything and kills quality on everything. I don't want higan to become MESS v2. I don't know what I'll do about the Famicom Disk System, PC-Engine CD, and Mega CD. I don't think I'll be able to achieve 60fps emulating the Mega CD, even if I tried to. I don't know what's going to happen here with even the Mega Drive. Maybe I'll get driven crazy with the documentation and quit. Maybe it'll end up being too complicated and I'll quit. Maybe the emulation will end up way too slow and I'll give up. Maybe it'll take me seven years to get any games playable at all. Maybe Steve Snake, AamirM and Mike Pavone will pool money to hire a hitman to come after me. Who knows. But this is what I want to do, so ... here goes nothing. |
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Tim Allen
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13ad9644a2 |
Update to v099r16 release (public beta).
byuu says: Changelog: - hiro: BrowserDialog can navigate up to drive selection on Windows - nall: (file,path,dir,base,prefix,suffix)name => Location::(file,path,dir,base,prefix,suffix) - higan/tomoko: rename audio filter label from "Sinc" to "IIR - Biquad" - higan/tomoko: allow loading files via icarus on the command-line once again - higan/tomoko: (begrudging) quick hack to fix presentation window focus on startup - higan/audio: don't divide output audio volume by number of streams - processor/r65816: fix a regression in (read,write)DB; fixes Taz-Mania - fixed compilation regressions on Windows and Linux I'm happy with where we are at with code cleanups and stability, so I'd like to release v100. But even though I'm not assigning any special significance to this version, we should probably test it more thoroughly first. |
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Tim Allen
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8d5cc0c35e |
Update to v099r15 release.
byuu says:
Changelog:
- nall::lstring -> nall::string_vector
- added IntegerBitField<type, lo, hi> -- hopefully it works correctly...
- Multitap 1-4 -> Super Multitap 2-5
- fixed SFC PPU CGRAM read regression
- huge amounts of SFC PPU IO register cleanups -- .bits really is lovely
- re-added the read/write(VRAM,OAM,CGRAM) helpers for the SFC PPU
- but they're now optimized to the realities of the PPU (16-bit data
sizes / no address parameter / where appropriate)
- basically used to get the active-display overrides in a unified place;
but also reduces duplicate code in (read,write)IO
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Tim Allen
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82293c95ae |
Update to v099r14 release.
byuu says:
Changelog:
- (u)int(max,ptr) abbreviations removed; use _t suffix now [didn't feel
like they were contributing enough to be worth it]
- cleaned up nall::integer,natural,real functionality
- toInteger, toNatural, toReal for parsing strings to numbers
- fromInteger, fromNatural, fromReal for creating strings from numbers
- (string,Markup::Node,SQL-based-classes)::(integer,natural,real)
left unchanged
- template<typename T> numeral(T value, long padding, char padchar)
-> string for print() formatting
- deduces integer,natural,real based on T ... cast the value if you
want to override
- there still exists binary,octal,hex,pointer for explicit print()
formatting
- lstring -> string_vector [but using lstring = string_vector; is
declared]
- would be nice to remove the using lstring eventually ... but that'd
probably require 10,000 lines of changes >_>
- format -> string_format [no using here; format was too ambiguous]
- using integer = Integer<sizeof(int)*8>; and using natural =
Natural<sizeof(uint)*8>; declared
- for consistency with boolean. These three are meant for creating
zero-initialized values implicitly (various uses)
- R65816::io() -> idle() and SPC700::io() -> idle() [more clear; frees
up struct IO {} io; naming]
- SFC CPU, PPU, SMP use struct IO {} io; over struct (Status,Registers) {}
(status,registers); now
- still some CPU::Status status values ... they didn't really fit into
IO functionality ... will have to think about this more
- SFC CPU, PPU, SMP now use step() exclusively instead of addClocks()
calling into step()
- SFC CPU joypad1_bits, joypad2_bits were unused; killed them
- SFC PPU CGRAM moved into PPU::Screen; since nothing else uses it
- SFC PPU OAM moved into PPU::Object; since nothing else uses it
- the raw uint8[544] array is gone. OAM::read() constructs values from
the OAM::Object[512] table now
- this avoids having to determine how we want to sub-divide the two
OAM memory sections
- this also eliminates the OAM::synchronize() functionality
- probably more I'm forgetting
The FPS fluctuations are driving me insane. This WIP went from 128fps to
137fps. Settled on 133.5fps for the final build. But nothing I changed
should have affected performance at all. This level of fluctuation makes
it damn near impossible to know whether I'm speeding things up or slowing
things down with changes.
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Tim Allen
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67457fade4 |
Update to v099r13 release.
byuu says: Changelog: - GB core code cleanup completed - GBA core code cleanup completed - some more cleanup on missed processor/arm functions/variables - fixed FC loading icarus bug - "Load ROM File" icarus functionality restored - minor code unification efforts all around (not perfect yet) - MMIO->IO - mmio.cpp->io.cpp - read,write->readIO,writeIO It's been a very long work in progress ... starting all the way back with v094r09, but the major part of the higan code cleanup is now completed! Of course, it's very important to note that this is only for the basic style: - under_score functions and variables are now camelCase - return-type function-name() are now auto function-name() -> return-type - Natural<T>/Integer<T> replace (u)intT_n types where possible - signed/unsigned are now int/uint - most of the x==true,x==false tests changed to x,!x A lot of spot improvements to consistency, simplicity and quality have gone in along the way, of course. But we'll probably never fully finishing beautifying every last line of code in the entire codebase. Still, this is a really great start. Going forward, WIP diffs should start being smaller and of higher quality once again. I know the joke is, "until my coding style changes again", but ... this was way too stressful, way too time consuming, and way too risky. I'm too old and tired now for extreme upheavel like this again. The only major change I'm slowly mulling over would be renaming the using Natural<T>/Integer<T> = (u)intT; shorthand to something that isn't as easily confused with the (u)int_t types ... but we'll see. I'll definitely continue to change small things all the time, but for the larger picture, I need to just accept the style I have and live with it. |
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Tim Allen
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a816998122 |
Update to v099r10 release.
byuu says:
Changelog:
- higan/profile/ => higan/systems/ [temporary; unless we can't think of
a better base folder name]
- god-damn-better-have fixed the input polling bug
- re-added command-line and drag-and-drop loading
- command-line loading can now load multiple folders at once (SGB+GB
game; Sufami Turbo+Slot A+Slot B; etc)
- if you load just the base cart, it'll present you with a dialog to
optionally load slotted cart(s)
- MSU1 now goes through nall/vfs instead of directly accessing the
filesystem
- Famicom Cartridge, PPU cores updated to newer programming style
- there's countless opportunity for BitField and .bits() in the PPU
... but I'm worried about breaking things
If anyone has a working MSU1 game and can test the changes out, that'd
be appreciated. I still don't have a test ROM on my dev box.
I wouldn't worry too much about extensively testing the Famicom PPU
changes just yet ... I'm still struggling with what to name the structs
inside the classes between all of my emulators, and the BitField/.bits()
changes will be much more important to test at a later date.
The only use case left for Emulator::Interface::path(uint id) is for
21fx emulation. This peripheral loads a DLL/SO via LoadLibrary/dlopen,
which do not have any official ways to open a file in RAM. I'm
very hesitant to use the portable trick of writing the memory to a
temporary file, loading it, and deleting the temporary file once done
... it's a real waste of disk activity. I might make something like
vfs::file::isVirtual->bool,path()->string to get around this. But even
once I do, the underlying LoadLibrary/dlopen call is still going to be
direct disk access.
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Tim Allen
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3a9c7c6843 |
Update to v099r09 release.
byuu says:
Changelog:
- Emulator::Interface::Medium::bootable removed
- Emulator::Interface::load(bool required) argument removed
[File::Required makes no sense on a folder]
- Super Famicom.sys now has user-configurable properties (CPU,PPU1,PPU2
version; PPU1 VRAM size, Region override)
- old nall/property removed completely
- volatile flags supported on coprocessor RAM files now (still not in
icarus, though)
- (hopefully) fixed SNES Multitap support (needs testing)
- fixed an OAM tiledata range clipping limit in 128KiB VRAM mode (doesn't
fix Yoshi's Island, sadly)
- (hopefully, again) fixed the input polling bug hex_usr reported
- re-added dialog box for when File::Required files are missing
- really cool: if you're missing a boot ROM, BIOS ROM, or IPL ROM,
it warns you immediately
- you don't have to select a game before seeing the error message
anymore
- fixed cheats.bml load/save location
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