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* Provide asynchronous property updates for sourcesChris Robinson2016-05-141-48/+17
| | | | | | | | | | | | | | | | | | | | | | | | | This necessitates a change in how source updates are handled. Rather than just being able to update sources when a dependent object state is changed (e.g. a listener gain change), now all source updates must be proactively provided. Consequently, apps that do not utilize any deferring (AL_SOFT_defer_updates or alcSuspendContext/alcProcessContext) may utilize more CPU since it'll be filling out more update containers for the mixer thread to use. The upside is that there's less blocking between the app's calling thread and the mixer thread, particularly for vectors and other multi-value properties (filters and sends). Deferring behavior when used is also improved, since updates that shouldn't be applied yet are simply not provided. And when they are provided, the mixer doesn't have to ignore them, meaning the actual deferring of a context doesn't have to synchrnously force an update -- the process call will send any pending updates, which the mixer will apply even if another deferral occurs before the mixer runs, because it'll still be there waiting on the next mixer invocation. There is one slight bug introduced by this commit. When a listener change is made, or changes to multiple sources while updates are being deferred, it is possible for the mixer to run while the sources are prepping their updates, causing some of the source updates to be seen before the other. This will be fixed in short order.
* Avoid updating the effect state object if it's not changedChris Robinson2016-05-121-12/+12
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* Provide (mostly) lockless updates for effect slotsChris Robinson2016-05-121-31/+25
| | | | | | | | | | | | | | | | | 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 Robinson2016-05-111-4/+31
| | | | | | | | | | | 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).
* Use the source's offset type to determine if there's an offsetChris Robinson2016-05-091-1/+1
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* Find a valid source buffer before updating the voiceChris Robinson2016-05-091-3/+14
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* Store more "active" listener and context properties separatelyChris Robinson2016-05-091-0/+5
| | | | | This helps ensure async listener/context property changes affect all playing sources at the same time.
* Don't crash when there's no backend to probeChris Robinson2016-04-301-2/+7
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* Start AL_SOFT_buffer_samples2 as a replacement for AL_SOFT_buffer_samplesChris Robinson2016-04-251-8/+22
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* Add support for AL_EXT_SOURCE_RADIUSChris Robinson2016-04-251-4/+6
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* Drop support for AL_SOFT_buffer_samples and AL_SOFT_buffer_sub_dataChris Robinson2016-04-241-12/+3
| | | | | | 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.
* Trace the requested attribute valuesChris Robinson2016-04-171-0/+24
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* Move the InitRenderer method to panning.cChris Robinson2016-04-141-181/+6
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* Separate some long if-else blocks into a separate functionChris Robinson2016-04-141-164/+179
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* Split aluInitPanning into separate functions for HRTF or UHJChris Robinson2016-04-141-1/+6
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* Properly make hq-mode default to offChris Robinson2016-03-301-1/+1
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* Move the aligned malloc functions to the common libChris Robinson2016-03-291-0/+1
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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 Robinson2016-03-251-4/+6
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* Use the "decoder" config section instead of "ambisonics"Chris Robinson2016-03-251-1/+1
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* Add a specific output for first-order sourcesChris Robinson2016-03-221-1/+19
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* Store the effect's output buffer in the effect stateChris Robinson2016-03-171-1/+6
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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 Robinson2016-03-161-1/+12
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* Add a dual-band ambisonic decoderChris Robinson2016-03-151-6/+11
| | | | | | | | | | 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.
* Generalize GetChannelIdxByNameChris Robinson2016-03-101-1/+1
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* Keep track of the real output's channel namesChris Robinson2016-03-101-54/+54
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* Organize the dry buffer properties into a structChris Robinson2016-03-091-70/+75
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* Track the virtual and real output buffers ecplicitlyChris Robinson2016-03-091-0/+35
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* Add an option for pair-wise stereo panningChris Robinson2016-02-261-9/+25
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* Use 2-channel UHJ for stereo outputChris Robinson2016-02-261-14/+19
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* Calculate channel gain stepping just before mixingChris Robinson2016-02-141-8/+0
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* Mix to multichannel for effectsChris Robinson2016-01-281-0/+2
| | | | | | 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.
* Use doubles for the constructed listener matrixChris Robinson2015-11-111-5/+5
| | | | | | 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.
* Pass the appropriate BackendInfo explicitly to ProbeDevicesChris Robinson2015-10-281-21/+9
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* Finalize ALC_SOFT_HRTFChris Robinson2015-10-281-3/+3
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* Rename ALC_NUM_HRTF_SPECIFIER_SOFT to ALC_NUM_HRTF_SPECIFIERS_SOFTChris Robinson2015-10-261-3/+3
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* Lock the source queue for writing when updating the playback offsetChris Robinson2015-10-241-2/+2
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* Convert the PortAudio backend to the new backend APIChris Robinson2015-10-221-1/+1
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* Remove the MIDI codeChris Robinson2015-10-201-95/+1
| | | | | | | 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).
* Make VerifyDevice and VerifyContext modify its parameterChris Robinson2015-10-191-43/+46
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* Move the FIR4 from SSE2 to SSE3Chris Robinson2015-10-111-1/+5
| | | | | SSE3 can avoid the slow _MM_TRANSPOSE_PS4 call thanks to the inclusion of horizontal adds.
* Allow apps to request a specific HRTFChris Robinson2015-10-071-15/+47
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* Use the enumerated HRTF list for selecting an HRTFChris Robinson2015-10-061-8/+48
| | | | Also report the proper specifier of the one currently in use.
* Enumerate and list HRTFs per-deviceChris Robinson2015-10-061-4/+12
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* Add methods to enumerate and query device HRTFsChris Robinson2015-10-031-36/+87
| | | | Currently just returns a dummy entry.
* Move the resampler stuff to mixer.c where it's usedChris Robinson2015-10-011-25/+0
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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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