Commit Graph

7 Commits

Author SHA1 Message Date
Denny Sheirer
25a42126df #1210 Resolves issue of tuner instances can't be garbage collected due to retained references. Updates several of the tuner controller and tuner editor classes to add/invoke dispose() methods to clear retained instance references. (#1216)
Co-authored-by: Denny Sheirer <sheirerd@ainfosec.com>
2022-04-24 04:56:10 -04:00
Denny Sheirer
96d3996bec #1190 Tuner management redesign. Updates all tuners with direct threaded support. Incorporates USB Hotplug support. Adds black/white listing of tuners. Updates all tuner editors to have a common look and feel. Changes location of tuner configuration file and changes format to JSON. (#1208)
Co-authored-by: Dennis Sheirer <dsheirer@github.com>
2022-04-18 07:30:58 -04:00
robekl
39f6d6c831 Performance improvements (#746)
* Misc minor performance improvements

* Use more concise loop syntax

* Use more concise Collection sort syntax

* Use StringUtils pad methods

* Optimize some loops and double-map-lookups

* Optimize array instantiation

There are two styles to convert a collection to an array: either
using a pre-sized array (like c.toArray(new String[c.size()])) or
using an empty array (like c.toArray(new String[0]).

In older Java versions using pre-sized array was recommended,
as the reflection call which is necessary to create an array
of proper size was quite slow. However since late updates of
OpenJDK 6 this call was intrinsified, making the performance
of the empty array version the same and sometimes even better,
compared to the pre-sized version. Also passing pre-sized array
is dangerous for a concurrent or synchronized collection as
a data race is possible between the size and toArray call
which may result in extra nulls at the end of the array,
if the collection was concurrently shrunk during the operation.

* Cleanup string concatenation

* Use EnumMap where possible

* Use FastMath instead of Math

* Initialize complex things only once

* Reduce method size to aloow more JIT inlining

* remove map of short->float

* Move field to local variable

* Cleanup Map lookup

Co-authored-by: Rob Ekl <xwq876@zebra.com>
2020-04-25 07:57:56 -04:00
Denny
104c4f72be Resolves #170 adding support for Airspy Mini tuner's 3 and 6 MHz
sample rates.

Resolves issue in PolyphaseChannelManager responding to sample rate
changes in the tuner.  The manager now recreates the channelizer when
needed if the tuner's sample rate has changed since the last time the
channelizer was used.

Updates the Tuner selection view to reflect tuner lock state.  Updates
the tuner editors to enable/disable frequency controller and sample
rate controls according to the tuner's lock state.
2018-07-14 07:45:42 -04:00
Denny
96d9d6f750 [WIP] Adds locking mechanism to tuner controllers so that the
polyphase channel manager can block users from changing frequency and/or
sample rate when polyphase channels are allocated.
2018-02-04 06:30:25 -05:00
Denny
236df8f3f4 Merges from master branch. 2017-12-27 10:10:51 -05:00
Denny
9316599dec Updates pull request from Roman Tsypuk to convert the build system from
ant to gradle.  Removes linux and windows application launch scripts and
produces an executable jar with all resources included.
2017-12-17 07:28:06 -05:00