Use this to share helpers or other extensions to the
original avs API across modules.
Start with including error codes to readable strings
to improve velocity on AVS API error analysis.
Wrapper/shim library to drive another ddrio in a dedicated
IO thread. Depending on the other ddrio backend used, this
can significantly improve performance while staying
compatible to the existing ddrio API interface
This turned out to be a good solution to solve performance
problems when running MAME with ddrio-p3io that is
(currently) implemented with synchronous IO calls that are
very costly: ~12 ms for a write over the ACIO protocol, ~4 ms
for a read using an IOCTL. As this already adds up to nearly
a full frame (60 fps) regarding latency, there isn't a lot
of time left to do other stuff in a synchronous update loop.
MAME's performance was unstable and dropped all the time below
100%. The result was a choppy gameplay experience.
Combining ddrio-async with ddrio-p3io, the combined backend
is able to drive inputs/outputs at a rate of ~250hz = ~4
updates per frame. This results in an average input latency
of ~4 ms which is as good as it can get with the p3io
hardware's performance limitations that I measured (see
the 4 ms for the IOCTL mentioned above).
This is more than good enough as as update frequency of
the 573 hardware is slightly less than that (I got told
something ~180 hz?).
tl;dr: Gameplay on MAME is great, smooth frame rate, IO feels
amazing and responsive.
This replaces the scaling feature of iidxhook-util/d3d9 as the
game engine changed significantly that the old one is incompatible.
Create a new module because the logic to implement a scaling
feature is very different now. This also avoids further cluttering
the already badly overloaded old module.
The new module is light weight and "plugable" on a hooking
level. Further modules will follow to de-clutter the
iidxhook-util/d3d9 module
Reads state of ddrio and updates vigem pads. Similar in vein to
viggem-sdvxio and vigem-iidxio
Useful for playing xinput related games with official hardware.
* popnhook1 for pop'n 15 - 18 has been added
* popnio has been added
* inject.exe has new syntax for loading hook DLLs, `real.dll=hook.dll`. This will trigger an early IAT hook where it will load the EXE suspended without resolving imports, replace the reference to real.dll in the import table with hook.dll, and then resolve everything before launching. This allows for ezusb.dll to be hooked properly.
* launcher.exe also has a new early IAT hook feature now. Use `-I real.dll=hook.dll`. The idea is the same as described above for inject.exe.
* Updated ezusb constant namings based on what is visible in ezusb.dll's debug statements.
The launcher.exe implementation of early IAT hooking means that someone can implement popnhook2.dll for 19 and above. I have tried pop'n music Sunny Park using a modified version of popnhook1 and it seems to work to some degree: the I/O check and security check returns OK which means the ezusb hooking used in popnhook1 is also working for the later games using `launcher.exe -I ezusb.dll=ezusb2-popn-shim.dll ...`. The process is rather invasive (manually resolving all imports means more chances to fail) so it has been implemented in such a way that the launcher will work the same as it has before as long as `-I` isn't specified.
One questionable thing I am not confident about is the `texture_usage_fix` hack flag I added in the conf. As the comment says, pop'n music 16 will work in Windows XP without the flag being set, but the game will immediately crash on later OSes without the flag being set in my experience. No other games had this issue in my experience. Enabling it in other games doesn't seem to have any negative effects.
add aciodrv-proc module
explanation : PANB works differently from other acio devices ; you send
one "start auto input" command without expecting a reply, and then the
piano keeps spamming "recv poll" commands on the acio bus and never replies
to any other commands.. failure to process these messages quickly enough
will saturate the serial buffer and cause checksum errors after a while.
for this reason, aciodrv-proc module was added in order to create a
thread which manages these recv poll commands and keeps the latest
known button state in memory so that it can be retrieved easily.
This uses vigem to create two virtual xbox gamepads and hooks
up the iidxio API to them. It allows you to use anything that
implements the BT5's iidxio API as a game controller, e.g.
iidxio-bio2, iidxio-ezusb1/2 to play any game that supports
xbox game controllers, e.g. lunatic rave, IIDX infinitas.
Further features include setting your own custom 16seg text
from a configuration file or enable some hardcoded light
sequence to make your cabinet look bad ass even when playing
"Big Rigs: Over the Road Racing"
Press Start P1 + Start P2 + Effect + VEFX at the same time to
terminate the game. Useful for multi game setups running some
sort of game loader/selector and not having to use a keyboard.
