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* Implement a 6-point sinc-lanczos filterChris Robinson2015-09-291-1/+3
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* Replace the cubic resampler with a 4-point sinc/lanczos filterChris Robinson2015-09-271-3/+7
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* Don't keep selecting the mixer to useChris Robinson2015-09-271-1/+1
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* Return the number of properties writtenChris Robinson2015-09-241-1/+1
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* Use a local var instead of multiple double-dereferencingChris Robinson2015-09-241-12/+13
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* Get rid of ALCdevice_GetLatencyChris Robinson2015-09-211-5/+0
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* Allow the hrtf_tables option to be device-specificChris Robinson2015-09-201-3/+4
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* Fix updating listener params when forcing updatesChris Robinson2015-09-181-33/+7
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* Add missing enum valuesChris Robinson2015-09-171-0/+11
| | | | Spotted by Xavier Bouchoux.
* Set both BS2B parameters at onceChris Robinson2015-09-081-2/+1
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* Avoid setting an HRTF-compatible format when it's disabledChris Robinson2015-09-051-4/+4
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* Don't store the HRTF request mode in the device flagsChris Robinson2015-09-051-28/+30
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* Set a proper HRTF status when non-stereo output is usedChris Robinson2015-09-051-0/+4
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* Change the hrtf config option to expect auto/true/false instead of a boolChris Robinson2015-09-041-9/+24
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* Allow for device-specific config valuesChris Robinson2015-08-281-29/+30
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* Use ACN ordering for ambisonics coefficients arraysChris Robinson2015-08-281-4/+4
| | | | | | Note that it still uses FuMa scalings internally. Coefficients loaded from config files specify if they're FuMa (in both ordering and scaling) or N3D, and will get reordered or rescaled as needed.
* Also recognize "DirectSound" and "MMSYSTEM" on WindowsChris Robinson2015-08-141-3/+5
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* Recognize "DirectSound3D" as a device name on WindowsChris Robinson2015-08-131-1/+8
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* Allow specifying ALC_DONT_CARE_SOFT for ALC_HRTF_SOFTChris Robinson2015-07-061-16/+23
| | | | | ALC_FALSE now indicates explicitly no HRTF mixing, while ALC_DONT_CARE_SOFT is autodetect.
* Update a couple commentsChris Robinson2015-07-041-4/+1
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* Convert the solaris backend to the new APIChris Robinson2015-05-171-1/+1
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* Add a method to reset the deviceChris Robinson2015-05-161-0/+38
| | | | | | | This basically acts as if the app created a new context with the specified attributes (causing the device to reset with new parameters), then immediately delete it. Existing contexts remain undisturbed, except for a temporary pause while the device output is reconfigured.
* Add a few more HRTF status valuesChris Robinson2015-05-161-3/+19
| | | | | | | | | DISABLED - Generic disabled status ENABLED - Generic enabled status DENIED - Not allowed (user has configured HRTF to be off) REQUIRED - Forced (user has forced HRTF to be used) HEADPHONES_DETECTED - Enabled because headphones were detected UNSUPPORTED_FORMAT - Device format is not compatible with available filters
* Add an HRTF status queryChris Robinson2015-05-151-4/+23
| | | | | This can report the status of HRTF, specifying if it's enabled or not and why (currently only reports unsupported formats, but this may be extended).
* Add an option for "basic" HRTF renderingChris Robinson2015-02-111-7/+26
| | | | | | | | | | | | | | | | | This method is intended to help development by easily testing the quality of the B-Format encode and B-Format-to-HRTF decode. When used with HRTF, all sources are renderer using the virtual B-Format output, rather than just B-Format sources. Despite the CPU cost savings (only four channels need to be filtered with HRTF, while sources all render normally), the spatial acuity offered by the B-Format output is pretty poor since it's only first-order ambisonics, so "full" HRTF rendering is definitely preferred. It's /possible/ for some systems to be edge cases that prefer the CPU cost savings provided by basic over the sharper localization provided by full, and you do still get 3D positional cues, but this is unlikely to be an actual use- case in practice.
* Make sure the BS2B filter is freed if HRTF is enabledChris Robinson2015-02-091-0/+4
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* Avoid unnecessary uses of ExchangeInt/PtrChris Robinson2015-02-041-3/+9
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* Try the JACK backend before PulseAudioChris Robinson2015-02-031-3/+3
| | | | | The backend will not spawn a server by default, so PulseAudio will still be preferred as long as a JACK server isn't already running.
* Add a skeleton backend for JACKChris Robinson2014-12-211-0/+3
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* Set error if capture device fails to startChris Robinson2014-12-211-4/+10
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* Use aluVector in some more placesChris Robinson2014-12-161-6/+2
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* Add explicit matrix and vector types to operate withChris Robinson2014-12-161-9/+7
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* Use a lookup table to do cubic resamplingChris Robinson2014-12-151-0/+1
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* Support B-Format output with the wave file writerChris Robinson2014-11-251-0/+9
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* Avoid using ALCdevice_Lock and ALCdevice_Unlock unnecessarilyChris Robinson2014-11-231-12/+12
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* Update a commentChris Robinson2014-11-231-3/+3
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* Add a boolean to specify if a device is headphonesChris Robinson2014-11-231-1/+4
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* Handle loopback devices when deciding to use HRTFChris Robinson2014-11-231-20/+18
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* Remove a couple unnecessary tracesChris Robinson2014-11-221-2/+0
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* Attempt to use BS2B when using headphones without HRTFChris Robinson2014-11-221-20/+23
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* Rework HRTF decision logicChris Robinson2014-11-221-36/+53
| | | | | | This way takes into account a new stereo-mode config option, which when set to "headphones" will default to using HRTF. Eventually the device will also be able to specify if headphones are being used.
* Move a warning check earlierChris Robinson2014-11-221-8/+8
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* Use a different method for HRTF mixingChris Robinson2014-11-221-3/+11
| | | | | | | | | | | | | | | | | | | | | | | This new method mixes sources normally into a 14-channel buffer with the channels placed all around the listener. HRTF is then applied to the channels given their positions and written to a 2-channel buffer, which gets written out to the device. This method has the benefit that HRTF processing becomes more scalable. The costly HRTF filters are applied to the 14-channel buffer after the mix is done, turning it into a post-process with a fixed overhead. Mixing sources is done with normal non-HRTF methods, so increasing the number of playing sources only incurs normal mixing costs. Another benefit is that it improves B-Format playback since the soundfield gets mixed into speakers covering all three dimensions, which then get filtered based on their locations. The main downside to this is that the spatial resolution of the HRTF dataset does not play a big role anymore. However, the hope is that with ambisonics- based panning, the perceptual position of panned sounds will still be good. It is also an option to increase the number of virtual channels for systems that can handle it, or maybe even decrease it for weaker systems.
* Reformat a couple linesChris Robinson2014-11-211-10/+8
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* Initialize panning after setting up HRTFChris Robinson2014-11-211-5/+5
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* Allocate the DryBuffer dynamicallyChris Robinson2014-11-211-0/+14
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* Align UpdateSize for Neon, tooChris Robinson2014-11-171-1/+1
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* Don't use the device lock/unlock wrappers needlesslyChris Robinson2014-11-081-4/+4
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* Remove the unused wide-stereo optionChris Robinson2014-11-081-4/+0
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* Allow selecting the 5.1-rear channel config from the config fileChris Robinson2014-11-081-0/+1
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