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* Use doubles for the constructed listener matrixChris Robinson2015-11-112-14/+39
| | | | | | This helps the stability of transforms to local space for sources that are at or near the listener. With a single-precision matrix, even FLT_EPSILON might not be enough to detect matching positions.
* Implement a band-limited sinc resamplerChris Robinson2015-11-052-4/+32
| | | | | | | | This is essentially a 12-point sinc resampler, unless it's resampling to a rate higher than the output, at which point it will vary between 12 and 24 points and do anti-aliasing to avoid/reduce frequencies going over nyquist. Code provided by Christopher Fitzgerald.
* Pass in the Q parameter for setting the filter parametersChris Robinson2015-11-012-20/+36
| | | | Also better handle the peaking filter gain.
* Remove an unused struct fieldChris Robinson2015-11-011-1/+0
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* Fix a commentChris Robinson2015-11-011-1/+1
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* Finalize ALC_SOFT_HRTFChris Robinson2015-10-281-22/+0
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* Rename ALC_NUM_HRTF_SPECIFIER_SOFT to ALC_NUM_HRTF_SPECIFIERS_SOFTChris Robinson2015-10-261-1/+1
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* Update filter histories even when they're not usedChris Robinson2015-10-241-0/+2
| | | | | | If the filter properties are continually updated, and the HF or LF gain goes from <1, to 1, and later back to <1, the history shouldn't hold stale values from before it was at 1.
* Use one send gain per buffer channelChris Robinson2015-10-231-1/+1
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* Convert the PortAudio backend to the new backend APIChris Robinson2015-10-221-3/+0
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* Remove the MIDI codeChris Robinson2015-10-202-387/+0
| | | | | | | The extension's not going anywhere, and it can't do anything fluidsynth can't. The code maintenance and bloat is not worth keeping around, and ideally the AL API would be able to facilitate MIDI-like behavior anyway (envelopes, start-at- time, etc).
* Remove unused channel labelsChris Robinson2015-10-181-9/+0
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* Use a constant value for the post-position paddingChris Robinson2015-10-152-3/+6
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* Store the source's previous samples with the voiceChris Robinson2015-10-152-0/+5
| | | | | | This helps avoid different results when looping is toggled within a couple samples of the loop point, or when a processed buffer is removed while the source is only a couple samples into the next buffer.
* Replace the sinc6 resampler with sinc8, and make SSE versionsChris Robinson2015-10-111-4/+5
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* Move the FIR4 from SSE2 to SSE3Chris Robinson2015-10-111-2/+3
| | | | | SSE3 can avoid the slow _MM_TRANSPOSE_PS4 call thanks to the inclusion of horizontal adds.
* Allow apps to request a specific HRTFChris Robinson2015-10-071-2/+3
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* Use the enumerated HRTF list for selecting an HRTFChris Robinson2015-10-061-0/+1
| | | | Also report the proper specifier of the one currently in use.
* Enumerate and list HRTFs per-deviceChris Robinson2015-10-061-0/+1
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* Add a function to get a list of data filesChris Robinson2015-10-031-0/+2
| | | | | | The method takes a marked-up filename (e.g. may include %r for a sample rate, %% for %, etc), and returns a vector of strings of found filenames that match. It will search the CWD, the local, and global data directories, in that order.
* Add methods to enumerate and query device HRTFsChris Robinson2015-10-031-0/+4
| | | | Currently just returns a dummy entry.
* Move the resampler stuff to mixer.c where it's usedChris Robinson2015-10-012-14/+0
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* Implement a 6-point sinc-lanczos filterChris Robinson2015-09-292-2/+12
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* Replace the cubic resampler with a 4-point sinc/lanczos filterChris Robinson2015-09-272-4/+4
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* Don't keep selecting the mixer to useChris Robinson2015-09-272-3/+1
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* Increase the max pitch to 255Chris Robinson2015-09-261-1/+1
| | | | | | | Note that this is the multiple above the device sample rate, rather than the source property limit. It could theoretically be increased to 511 by testing against UINT_MAX instead of INT_MAX, since the increment and positions are using unsigned integers. I'm just being paranoid about overflows.
* Get rid of ALCdevice_GetLatencyChris Robinson2015-09-211-1/+0
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* Fix updating listener params when forcing updatesChris Robinson2015-09-181-0/+2
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* Use sizeof T for the size of the object typeChris Robinson2015-09-151-5/+5
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* Rename F_2PI to F_TAUChris Robinson2015-09-131-1/+1
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* Set both BS2B parameters at onceChris Robinson2015-09-081-7/+4
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* Don't store the HRTF request mode in the device flagsChris Robinson2015-09-051-8/+1
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* Allow for device-specific config valuesChris Robinson2015-08-281-8/+8
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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.
* Don't explicitly store first-order coefficientsChris Robinson2015-08-181-5/+3
| | | | | | | It seems a simple scaling on the coefficients will allow first-order content to work with second- and third-order coefficients, although obviously not with any improved locality. That may be something to look into for the future, but this is good enough for now.
* Allow specifying ALC_DONT_CARE_SOFT for ALC_HRTF_SOFTChris Robinson2015-07-061-2/+8
| | | | | ALC_FALSE now indicates explicitly no HRTF mixing, while ALC_DONT_CARE_SOFT is autodetect.
* Update a couple commentsChris Robinson2015-07-041-1/+1
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* Add a macro to simplify allocating and constructing an objectChris Robinson2015-05-181-0/+12
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* Convert the solaris backend to the new APIChris Robinson2015-05-171-3/+0
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* Add a method to reset the deviceChris Robinson2015-05-161-0/+4
| | | | | | | 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 Robinson2015-05-161-1/+4
| | | | | | | | | 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 Robinson2015-05-151-0/+5
| | | | | 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 Robinson2015-02-111-0/+8
| | | | | | | | | | | | | | | | | 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.
* Move HRTF params and state closer togetherChris Robinson2015-02-091-3/+3
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* Add missing alignas to CubicLUT declarationChris Robinson2015-01-131-1/+1
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* Remove some IN_IDE_PARSER usesChris Robinson2014-12-241-7/+0
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* Remove some unnecessary restrict usesChris Robinson2014-12-241-7/+6
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* Add a lockless ringbufferChris Robinson2014-12-231-0/+19
| | | | | | Largely copied from JACK, it's extended to work with user-specified element sizes instead of bytes. This is necessary to be able to work with 6- and 7- channel output modes.
* Use a macro for the record thread nameChris Robinson2014-12-211-0/+2
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* Fix logging on WindowsChris Robinson2014-12-201-1/+1
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