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* Provide (mostly) lockless updates for effect slotsChris Robinson2016-05-122-55/+155
| | | | | | | | | | | | | | | | | Similar to the listener, separate containers are provided atomically for the mixer thread to apply updates without needing to block, and a free-list is used to reuse container objects. A couple things to note. First, the lock is still used when the effect state's deviceUpdate method is called to prevent asynchronous calls to reset the device from interfering. This can be fixed by using the list lock in ALc.c instead. Secondly, old effect states aren't immediately deleted when the effect type changes (the actual type, not just its properties). This is because the mixer thread is intended to be real-time safe, and so can't be freeing anything. They are cleared away when updates reuse the container they were kept in, and they don't incur any extra processing cost, but there may be cases where the memory is kept around until the effect slot is deleted.
* Use a lockless method for updating listener and context propertiesChris Robinson2016-05-115-56/+163
| | | | | | | | | | | This uses a separate container to provide the relevant properties to the internal update method, using atomic pointer swaps. A free-list is used to avoid having too many individual containers. This allows the mixer to update the internal listener properties without requiring the lock to protect against async updates. It also allows concurrent read access to the user-facing property values, even the multi-value ones (e.g. the vectors).
* Hold the buffer map lock while handling the bufferChris Robinson2016-05-103-4/+64
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* Hold the source map lock while handling itChris Robinson2016-05-102-2/+79
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* Add a comment about CoeffCount being 0Chris Robinson2016-05-101-1/+3
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* Use the source's offset type to determine if there's an offsetChris Robinson2016-05-091-6/+11
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* Find a valid source buffer before updating the voiceChris Robinson2016-05-092-3/+4
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* Store more "active" listener and context properties separatelyChris Robinson2016-05-091-0/+6
| | | | | This helps ensure async listener/context property changes affect all playing sources at the same time.
* Start AL_SOFT_buffer_samples2 as a replacement for AL_SOFT_buffer_samplesChris Robinson2016-04-253-17/+93
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* Remove unnecessary code for the now-unused write offsetChris Robinson2016-04-251-53/+17
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* Add support for AL_EXT_SOURCE_RADIUSChris Robinson2016-04-251-6/+27
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* Drop support for AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_dataChris Robinson2016-04-241-49/+0
| | | | | | Unfortunately they conflict with AL_EXT_SOURCE_RADIUS, as AL_SOURCE_RADIUS and AL_BYTE_RW_OFFSETS_SOFT share the same source property value. A replacement for AL_SOFT_buffer_samples will eventually be made.
* Improve radius behavior with scaling of ambisonic coefficientsChris Robinson2016-04-241-5/+6
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* Increase max output channels to 16Chris Robinson2016-04-191-1/+8
| | | | This also enables fully periphonic 3rd order HQ decoding.
* Avoid storing channel names for the dry bufferChris Robinson2016-04-161-2/+0
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* More directly map coefficients for ambisonic mixing buffersChris Robinson2016-04-152-7/+34
| | | | | | Instead of looping over all the coefficients for each channel with multiplies, when we know only one will have a non-0 factor for ambisonic mixing buffers, just index the one with a non-0 factor.
* Update some commentsChris Robinson2016-04-151-4/+5
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* Avoid mixing all coefficients together when only some are usedChris Robinson2016-04-152-1/+5
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* Shorten VECTOR_ITER_ macros to VECTOR_Chris Robinson2016-04-151-3/+3
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* Update a commentChris Robinson2016-04-151-2/+2
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* Avoid unnecessary loops for setting up effect slot b-format buffer mixingChris Robinson2016-04-143-1/+7
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* Move the InitRenderer method to panning.cChris Robinson2016-04-141-3/+13
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* Split aluInitPanning into separate functions for HRTF or UHJChris Robinson2016-04-142-3/+7
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* Remove the old ringbuffer implementationChris Robinson2016-03-301-7/+0
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* Move the aligned malloc functions to the common libChris Robinson2016-03-294-5/+6
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* Include any first-order scaling in the FOAOut coefficientsChris Robinson2016-03-251-2/+0
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* Implement AL_EXT_STEREO_ANGLES supportChris Robinson2016-03-252-0/+41
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* Allow second-order HQ decodingChris Robinson2016-03-231-1/+6
| | | | | | | | Could really do with some optimizations to the mixing gain calculations. For ambisonic targets, the coefficients will only have 1 non-0 entry for each output, so the double loop in unnecessarily wasteful. Similarly, most uses won't need a full height encoding either, so a horizontal-only or mixed-order target could reduce the number of channels.
* Add a specific output for first-order sourcesChris Robinson2016-03-221-0/+9
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* Store the effect's output buffer in the effect stateChris Robinson2016-03-172-0/+5
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* Rename the BFormat channels to AuxChris Robinson2016-03-161-4/+4
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* Add config options to enable the hq ambisonic decoderChris Robinson2016-03-161-2/+1
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* Add a dual-band ambisonic decoderChris Robinson2016-03-152-1/+5
| | | | | | | | | | This uses a virtual B-Format buffer for mixing, and then uses a dual-band decoder for improved positional quality. This currently only works with first- order output since first-order input (from the AL_EXT_BFROMAT extension) would not sound correct when fed through a second- or third-order decoder. This also does not currently implement near-field compensation since near-field rendering effects are not implemented.
* Add a loader for ambdec filesChris Robinson2016-03-141-1/+2
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* Use the real output's left and right channels with HRTFChris Robinson2016-03-111-2/+2
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* Generalize GetChannelIdxByNameChris Robinson2016-03-101-6/+6
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* Keep track of the real output's channel namesChris Robinson2016-03-101-0/+2
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* Organize the dry buffer properties into a structChris Robinson2016-03-091-19/+25
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* Track the virtual and real output buffers ecplicitlyChris Robinson2016-03-091-1/+12
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* Add an option for pair-wise stereo panningChris Robinson2016-02-261-5/+7
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* Use 2-channel UHJ for stereo outputChris Robinson2016-02-261-0/+3
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* Remove an unused functionChris Robinson2016-02-231-2/+0
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* Use an 8-channel cube for HRTF's virtual format.Chris Robinson2016-02-201-0/+9
| | | | | | There were phase issues caused by applying HRTF directly to the B-Format channels, since the HRIR delays were all averaged which removed the inter-aural time-delay, which in turn removed significant spatial information.
* Calculate HRTF stepping params right before mixingChris Robinson2016-02-143-10/+11
| | | | | This means we track the current params and the target params, rather than the target params and the stepping. This closer matches the non-HRTF mixers.
* Calculate channel gain stepping just before mixingChris Robinson2016-02-143-16/+16
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* Rename ComputeBFormatGains to ComputeFirstOrderGainsChris Robinson2016-01-311-5/+5
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* Make the source's buffer queue a singly-linked listChris Robinson2016-01-312-31/+27
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* Mix to multichannel for effectsChris Robinson2016-01-283-6/+25
| | | | | | This mixes to a 4-channel first-order ambisonics buffer. With ACN ordering and N3D scaling, this makes it easy to remain compatible with effects that only care about mono input since channel 0 is an unattenuated mono signal.
* Pass a pointer to the input samples array for effect processingChris Robinson2016-01-271-2/+2
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* Separate calculating ambisonic coefficients from the panning gainsChris Robinson2016-01-252-16/+36
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