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* Make and use a C11-like altimespec_get wrapper functionChris Robinson2014-04-171-1/+5
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* Rename althread_key_ wrappers to altss_ and move it to threads.h/cChris Robinson2014-04-171-0/+31
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* Fix some almtx_ return valuesChris Robinson2014-04-161-10/+22
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* Remove almtx_normal and almtx_errorcheckChris Robinson2014-04-161-3/+1
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* Fix althrd_sleep return valueChris Robinson2014-04-161-3/+9
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* Avoid using a Sleep() wrapperChris Robinson2014-04-161-0/+12
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* Remove the old thread wrappers for the new onesChris Robinson2014-04-161-10/+4
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* Implement a C11-like thread wrapper and use it in mmdevapi and pulseaudioChris Robinson2014-04-161-5/+77
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* Use a C11-like mutex wrapper instead of CRITICAL_SECTIONsChris Robinson2014-04-161-0/+86
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* Avoid memory leak if preset ID lookup failsChris Robinson2014-04-141-0/+1
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* Insert all new effect slots into the active effect slots at onceChris Robinson2014-04-101-26/+27
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* Use C11's static_assert when availableChris Robinson2014-04-072-2/+14
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* Make HRTF stepping values per-channelChris Robinson2014-04-051-2/+2
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* Use an al_string for the device nameChris Robinson2014-03-281-1/+2
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* Use C99 VLA instead of alloca when availableChris Robinson2014-03-252-8/+10
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* Remove setState from the MidiSynth vtableChris Robinson2014-03-231-4/+4
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* Remove an unused methodChris Robinson2014-03-232-10/+0
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* Remove the last bits of the predictive sample processingChris Robinson2014-03-231-3/+3
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* Remove the click removal buffers for auxiliary effect slotsChris Robinson2014-03-233-9/+1
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* Add gain stepping to the send mixersChris Robinson2014-03-232-2/+17
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* Remove the now-unneeded click removal buffers for the deviceChris Robinson2014-03-232-7/+1
| | | | | | They are still there for auxiliary sends. However, they should go away soon enough too, and then we won't have to mess around with calculating extra "predictive" samples in the mixer.
* Step mixing gains per-sample for non-HRTF mixingChris Robinson2014-03-231-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | This fades the dry mixing gains using a logarithmic curve, which should produce a smoother transition than a linear one. It functions similarly to a linear fade except that step = (target - current) / numsteps; ... gain += step; becomes step = powf(target / current, 1.0f / numsteps); ... gain *= step; where 'target' and 'current' are clamped to a lower bound that is greater than 0 (which makes no sense on a logarithmic scale). Consequently, the non-HRTF direct mixers do not do not feed into the click removal and pending click buffers, as this per-sample fading would do an adequate job of stopping clicks and pops caused by extreme gain changes. These buffers should be removed shortly.
* Move the step counter and moving flag to DirectParamsChris Robinson2014-03-232-4/+6
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* Store the HrtfState directly in the DirectParamsChris Robinson2014-03-233-31/+18
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* Add a stub 'soft' MIDI synth handlerChris Robinson2014-03-221-1/+3
| | | | | Eventually this one will be used to handle MIDI internally, using our own mixers and resamplers.
* Move some HRTF and mixer structs to alu.hChris Robinson2014-03-222-63/+60
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* Use a void* for the effect state Delete method paramChris Robinson2014-03-212-2/+6
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* Increase the vector reserve as needed when pushing in new itemsChris Robinson2014-03-211-1/+1
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* Add a generic vector interface and use it for the active effect slotsChris Robinson2014-03-213-27/+20
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* Use flexible array members to pad the device and context structsChris Robinson2014-03-201-0/+6
| | | | | This helps avoid the convoluted math otherwise required to ensure the default slot and listener, respectively, are aligned.
* Keep track of the mix countChris Robinson2014-03-191-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | The purpose of this is to provide a safe way to be able to "swap" resources used by the mixer from other threads without the need to block the mixer, as well as a way to track when mixes have occurred. The idea is two-fold: It provides a way to safely swap resources. If the mixer were to (atomically) get a reference to an object to access it from, another thread would be able allocate and prepare a new object then swap the reference to it with the stored one. The other thread would then be able to wait until (count&1) is clear, indicating the mixer is not running, before safely freeing the old object for the mixer to use the new one. It also provides a way to tell if the mixer has run. With this, a thread would be able to read multiple values, which could be altered by the mixer, without requiring a mixer lock. Comparing the before and after counts for inequality would signify if the mixer has (started to) run, indicating the values may be out of sync and should try getting them again. Of course, it will still need something like a RWLock to ensure another (non-mixer) thread doesn't try to write to the values at the same time. Note that because of the possibility of overflow, the counter is not reliable as an absolute count.
* Use a union to combine HRTF and non-HRTF mixer paramsChris Robinson2014-03-191-9/+11
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* Store some source mixing parameters in the active source structChris Robinson2014-03-194-42/+42
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* Use a separate struct for tracking active sourcesChris Robinson2014-03-184-19/+38
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* Store the old-style backend funcs in the wrapperChris Robinson2014-03-171-1/+0
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* Avoid GCC's macro arg concat extension with IDE parsingChris Robinson2014-03-171-1/+1
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* Use the correct array sizeChris Robinson2014-03-081-2/+2
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* Improve int-to-float and uint-to-float conversionsChris Robinson2014-03-081-2/+2
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* Only require MSADPCM block alignment to be a multiple of 2Chris Robinson2014-03-061-2/+2
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* Only sign-expand the nibble when neededChris Robinson2014-03-061-4/+3
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* Move the sample conversion routines to a separate fileChris Robinson2014-03-053-1261/+1278
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* Implement a simplistic MSADPCM encoderChris Robinson2014-03-051-19/+47
| | | | It's not particularly good, but it's better than silence.
* Allocate enough temp space for the ADPCM decoders and encodersChris Robinson2014-03-051-4/+4
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* Use specialized methods for converting ALshort to IMA4 and MSADPCMChris Robinson2014-03-051-2/+32
| | | | As before, to avoid unnecessary direct copies
* Use specialized methods for converting IMA4 and MSADPCM to ALshortChris Robinson2014-03-051-8/+39
| | | | | Since the decoder methods already convert to ALshort, there's no need to use a temp buffer that's just going to copy directly to the destination.
* Use maxi to clamp an int to a lower-boundChris Robinson2014-03-051-1/+1
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* Expand the sign bit on the initial MSADPCM delta valueChris Robinson2014-03-051-0/+1
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* Add an extension to support MSADPCM buffer formatsChris Robinson2014-03-044-27/+339
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* Add an extension to alter the block alignment for buffer unpack/pack opsChris Robinson2014-03-043-16/+80
| | | | | | | | | | | | | | | | This is for unpacking (reading, e.g. alBufferData) and packing (writing, e.g. alGetBufferSamplesSOFT) operations. The alignments are specified in sample frames, with 0 meaning the default (65 for IMA4, 1 otherwise). IMA4 alignment must be a multiple of 8, plus 1 (e.g. alignment = n*8 + 1), otherwise an error will occur during (un)packing. Chenging the block alignment does not affect already-loaded sample data, only future unpack/pack operations... so for example, this is perfectly valid: // Load mono IMA4 data with a block alignment of 1024 bytes, or 2041 sample // frames. alBufferi(buffer, AL_UNPACK_BLOCK_ALIGNMENT_SOFT, 2041); alBufferData(buffer, AL_FORMAT_MONO_IMA4, data, data_len, srate); alBufferi(buffer, AL_UNPACK_BLOCK_ALIGNMENT_SOFT, 0);
* Parameterize the block alignmentChris Robinson2014-03-041-111/+152
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