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path: root/Alc/hrtf.h
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* Rename Alc to alcChris Robinson2019-07-281-124/+0
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* Clean up includes a bitChris Robinson2019-07-281-4/+6
| | | | | | | Trying out the IWYU tool to only include what's necessary in a given file. Seems to work decently (it'll miss some headers, suggest unnecessary ones, and make nonsense suggestions for some things, but overall gives a good starting point), and helps clean out some headers.
* Rename HrtfParams to HrtfFilterChris Robinson2019-06-181-1/+1
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* Make some more channel counts unsignedChris Robinson2019-06-051-1/+3
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* Don't log the function or prefixChris Robinson2019-06-041-1/+0
| | | | | | It's ultimately unnecessary since the message is an indicator about where it was logged from. The message itself is generally more important than where it was from, too.
* Properly reverse the HRTF field order when loading itChris Robinson2019-05-221-6/+7
| | | | And combine a couple arrays into an array structure
* Fix some integer truncation warnings in MSVCChris Robinson2019-04-121-1/+1
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* Remove a couple unused member variablesChris Robinson2019-03-301-1/+0
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* Use a temporary buffer for HRTF filter accumulationChris Robinson2019-03-291-0/+2
| | | | | Similar to the history buffer, to avoid using the state buffer as a ring buffer.
* Simplify calculating azimuth and elevation indices for HRTFChris Robinson2019-03-141-1/+1
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* Reverse the HRTF field arrayChris Robinson2019-02-271-1/+6
| | | | | | Most often a sound's distance will be beyond the farthest field measurement, so It's more efficient to have the farthest field first and avoid looping through the whole field array for them.
* Rename MAX_AMBI_COEFFS and MAX_AMBI2D_COEFFSChris Robinson2019-02-191-1/+1
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* Use std::arrays for HRIR coeffs and valuesChris Robinson2019-02-071-6/+11
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* Pass the distance to GetHrtfCoeffsChris Robinson2019-01-281-1/+1
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* Collect HRTF field info into a structChris Robinson2019-01-281-2/+6
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* Make IncRef and DecRef member functionsChris Robinson2019-01-241-2/+6
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* Use a flexible array for DirectHrtfState and ALvoiceChris Robinson2019-01-121-4/+10
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* Make Create methods for structs with flexible array members ...Chris Robinson2019-01-081-0/+2
| | | | ... that are used with unique_ptr.
* Cleanup some includesChris Robinson2018-12-251-2/+8
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* Rename a couple HRTF structsChris Robinson2018-12-221-7/+7
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* Don't convert the HRTF decoder virtual speaker positions to radiansChris Robinson2018-12-211-2/+3
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* Avoid static global initialization functionsChris Robinson2018-12-081-2/+0
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* Make a DirectHrtfState constructor to try appeasing MSVCChris Robinson2018-11-221-2/+4
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* Use unique_ptr for DirectHrtfStateChris Robinson2018-11-221-0/+3
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* Clean up some unnecessary specifiersChris Robinson2018-11-221-6/+6
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* Use a standard string for the enumerated HRTF namesChris Robinson2018-11-181-1/+0
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* Use a regular vector for the enumerated HRTF listChris Robinson2018-11-181-10/+3
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* Pass a normal const char* to EnumerateHrtfChris Robinson2018-11-151-2/+1
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* Convert panning.c to C++Chris Robinson2018-11-031-0/+8
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* Add a RESTRICT macro to help with C++ compatibilityChris Robinson2018-10-291-2/+2
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* Don't hardcode the max channels for HRTF B-Format decodingChris Robinson2018-05-261-6/+0
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* Fix a function commentChris Robinson2018-05-151-2/+3
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* Use a proper struct for specifying angular pointsChris Robinson2018-02-181-1/+6
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* Use an alternate ambisonic HRTF decode layoutChris Robinson2018-02-131-1/+1
| | | | | | Similar to the previous, but includes the top and bottom HRTF responses. The higher-order decode (for the "basic" HRTF output) also now uses 2H1P mixed- order instead of 2H1V, which seems more stable.
* Use an alternate virtual layout for Ambisonic HRTF decodingChris Robinson2018-02-101-1/+1
| | | | | This uses 16 channels, an 8-channel octagon + 8-channel cube, which should improve horizontal resolution without affecting vertical too much.
* Move some HRTF structures to hrtf.hChris Robinson2018-01-111-0/+31
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* Store the HRTF distance in the Hrtf handleChris Robinson2017-10-231-0/+2
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* Don't bother returning the IR length for B-Format decodingChris Robinson2017-07-311-2/+1
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* Remove unused macrosChris Robinson2017-07-251-4/+0
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* Store the HRTF coeffs as a stereo pairChris Robinson2017-04-071-2/+2
| | | | | This will make it easier to handle HRTF data sets that have separate left and right ear responses. Will need an mhr version update to take advantage of that.
* Reference count HRTFs and unload them when unusedChris Robinson2017-04-061-0/+5
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* Load HRTF files as neededChris Robinson2017-04-051-6/+3
| | | | | Currently only applies to external files, rather than embedded datasets. Also, HRTFs aren't unloaded after being loaded, until library shutdown.
* Store the loaded hrtf entry container in the enumerated hrtf entryChris Robinson2017-04-051-9/+17
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* Store the HRTF's filename separate from the entry storageChris Robinson2017-04-051-3/+0
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* Load HRTF coefficients as pre-normalized floatsChris Robinson2017-03-311-1/+1
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* Rework HRTF coefficient fadingChris Robinson2017-03-111-1/+1
| | | | | | | | | | | | | | | This improves fading between HRIRs as sources pan around. In particular, it improves the issue with individual coefficients having various rounding errors in the stepping values, as well as issues with interpolating delay values. It does this by doing two mixing passes for each source. First using the last coefficients that fade to silence, and then again using the new coefficients that fade from silence. When added together, it creates a linear fade from one to the other. Additionally, the gain is applied separately so the individual coefficients don't step with rounding errors. Although this does increase CPU cost since it's doing two mixes per source, each mix is a bit cheaper now since the stepping is simplified to a single gain value, and the overall quality is improved.
* Allocate as many channels for DirectHrtfState as neededChris Robinson2017-03-111-1/+1
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* Move the B-Format HRTF virtual speaker stuff to InitHrtfPanningChris Robinson2017-01-181-15/+12
| | | | | This keeps the decoder matrices and coefficient mapping together for if it changes in the future.
* Use ALsizei for sizes and offsets with the mixerChris Robinson2017-01-161-3/+3
| | | | | | Unsigned 32-bit offsets actually have some potential overhead on 64-bit targets for pointer/array accesses due to rules on integer wrapping. No idea how much impact it has in practice, but it's nice to be correct about it.
* Use second-order ambisonics for basic HRTF renderingChris Robinson2017-01-151-1/+1
| | | | | | This should improve positional quality for relatively low cost. Full HRTF rendering still only uses first-order since the only use of the dry buffer there is for first-order content (B-Format buffers, effects).
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