Check In's, News

Check In: Dec 6 2019 (DPC Buffer and Memory Leak Bug, 3rd Party PS4 Controllers, Documentation)

A pretty serious memory leak bug has been discovered in IM 1.7. More accurately it’s a buffer overflow issue where some mid- range or heavily taxed systems are generating output device reports faster than the output driver can process them. This in itself isn’t an issue as devices do this all the time and is why DPC, interrupts and buffers exist. But the issue is that the output buffer isnt being corrected when it starts to back up which over time can become noticeable in the form of lag and audio glitches or other hardware device stuttering. This is a top priority right now as I modify the plugin to handle clearing a buffer when it starts to overflow.

The plugin system is getting some tweaks in the way that InputMapper manages the plugin instances themselves. Currently they are uncontained and pretty much after initialization IM has no real control or interaction with them whatsoever. I am going to start to tweak this and have the plugins exist within wrappers so they can have better access to settings and be more easily managed as-well as enabled or disabled as needed.

The Dualshock 4 plugin has been renamed to the Playstation 4 controller plugin and has settings to add 3rd party PS4 controllers to the detection list.

Documentation is going to get a bump soon as I focus on including documentation into the application itself as well as creating tutorials for common issues and setups.

2 Comments

  1. Good to know that it’s been discovered! Been a user for many years now and have recommended it to anyone who wants to use the best controller out there right now. Looking forward to a patch soon to fix the leak.

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