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Author SHA1 Message Date
Chris Robinson
9a883f5046 Partly simplify FFT bit-reversal 
This can almost certainly be improved further, as less than half of the indices
really need their reversed bit-pattern calculated and elements swapped (any
symetrical bit pattern would just swap with itself, and indices whose reversed
bit-pattern has already been traversed is already swapped).

It may also prove beneficial to provide the base-2 log of the fft buffer size
(number of bits to represent the indices), as that could help make the reversal
more efficient with a known bit/loop count.
 2020-09-13 03:33:52 -07:00
Chris Robinson
1d4b355622 Use standard sin and sqrt 2020-09-12 19:06:06 -07:00
Chris Robinson
bb90bfd9b3 Accumulate delays as samples before calculating nanoseconds 2020-09-12 01:52:45 -07:00
Chris Robinson
cf298075b5 Round (and clamp) the reftime instead of ceiling it 2020-09-12 00:47:04 -07:00
Chris Robinson
33d91ceeec Avoid repeating string literals 2020-09-11 01:40:36 -07:00
Chris Robinson
a4bfba4cb5 Recognize GUID name strings with the DSound backend 2020-09-10 22:05:25 -07:00
Chris Robinson
21162cf5fc Allow JACK to enumerate custom devices 
Each device being associated with a port name pattern it'll try connecting to.
 2020-09-10 21:09:06 -07:00
Chris Robinson
bb63d5aab3 Simplify clearing an array 2020-09-09 23:21:46 -07:00
Chris Robinson
ce0a45cbc7 Don't assume iterators are pointers 2020-09-09 14:02:02 -07:00
Chris Robinson
68a099ba35 Apply the first convolution segment in the time domain 
This avoids an inherent delay from the effect, at the cost of higher CPU use.
Having a customizable user-specified delay (with said user ensuring a properly
trimmed impulse response) could help alleviate the cost since once the delay
exceeds the segment size, the initial FIR filter could be skipped.
 2020-09-09 02:23:38 -07:00
Chris Robinson
f4a55cc8c2 Don't leave the negative frequencies as 0 for inverse FFT 2020-09-08 23:20:06 -07:00
Chris Robinson
29566b995c Avoid an extraneous ConvolutionFilter sub-object 2020-09-06 00:16:50 -07:00
Chris Robinson
7eb5dfb3f8 Allow querying the new enums and functions 2020-09-05 23:53:53 -07:00
Chris Robinson
f5163ca988 Print the name and format for alconvole's impulse response 2020-09-05 23:48:19 -07:00
Chris Robinson
800e2b6125 Cleanup and fix alAuxiliaryEffectSlotPlayv/StopvSOFT 2020-09-05 21:39:31 -07:00
Chris Robinson
13710b474e Ensure effect slot properties are updated when playing 2020-09-05 21:04:41 -07:00
Chris Robinson
c52bf8c401 Rework effect slot buffer setting 
Rather than creating an effect-specific buffer that gets passed along as a
property, the buffer is set the effect state when the effect state is created,
the device is updated, or the buffer is changed. The buffer can only be set
while the effect slot isn't playing, so it won't be changed or updated while
the mixer is processing the effect state.
 2020-09-05 20:48:56 -07:00
Chris Robinson
9975aeb37f Add methods to start and stop effect slot processing 
A newly-created effect slot is in an AL_INITIAL state, in which processing is
stopped but will automatically become AL_PLAYING after successfully setting an
AL_EFFECTSLOT_EFFECT value (including AL_EFFECT_NULL or 0). Calling Play[v] or
Stop[v] will set the effect slot to AL_PLAYING or AL_STOPPED respectively.
While stopped, the effect won't produce audio and will not be processed.
 2020-09-05 19:11:57 -07:00
Chris Robinson
7851f7d4ce Don't add effect slots to the active list until an effect is set 2020-09-05 18:13:08 -07:00
Chris Robinson
c1ad5d6055 Avoid confusing */*...*/ syntax 
MSVC warns about */ being outside of a comment.
 2020-09-05 14:28:08 -07:00
Chris Robinson
7e3fed42ed Use a recursive_mutex for the router enumeration lock 2020-09-05 12:41:28 -07:00
Chris Robinson
73f5331305 Use an RAII wrapper to manage COM object references 2020-09-05 12:32:41 -07:00
Chris Robinson
88f7617807 Avoid duplicate WASAPI devices by matching GUIDs 2020-09-04 18:32:06 -07:00
Chris Robinson
afdd1c67ad Update changelog 2020-09-03 13:25:51 -07:00
Chris Robinson
9e862900fe Update some UHJ comments 2020-09-02 15:50:11 -07:00
Chris Robinson
fe329c2af2 Avoid class templates for the POPCNT64/CTZ64 macros 2020-09-01 15:55:48 -07:00
Chris Robinson
1968136c98 Add an in-progress extension string for convolution reverb 2020-09-01 07:37:07 -07:00
Chris Robinson
eeba1a385c Don't use config.h to define RESTRICT 2020-09-01 06:22:50 -07:00
Chris Robinson
a6aefeccd8 Use enum class for a couple enums 2020-09-01 05:46:19 -07:00
Chris Robinson
02e51c0525 Avoid using a deprecated function 2020-08-31 17:48:26 -07:00
Chris Robinson
af97a92952 Move more processing to the ConvolutionFilter struct 2020-08-31 06:43:42 -07:00
Chris Robinson
88425becb2 Remove a couple unnecessary pointers 2020-08-30 04:41:19 -07:00
Chris Robinson
82873486b7 Dynamically allocate the convolution channel mixing data 2020-08-30 04:28:01 -07:00
Chris Robinson
ebe0765ce3 Reorganize some convolution fields 2020-08-30 03:42:44 -07:00
Chris Robinson
8724c1ce4b Remove extraneous parenthesis 2020-08-28 23:28:20 -07:00
Chris Robinson
3fdee6c814 Calculate the correct number of convolution segments 2020-08-28 23:08:44 -07:00
Chris Robinson
ecfb0d4f5b Limit convolution processing to the output ambisonic order 2020-08-28 06:47:21 -07:00
Chris Robinson
7266cd8b6c Don't dereference a null convolution filter 2020-08-28 06:44:05 -07:00
Chris Robinson
52531d8b72 Support B-Format impulse responses for convolution 2020-08-28 05:48:26 -07:00
Chris Robinson
986a58d5b4 Pass a BufferStorage to EffectState::createBuffer 2020-08-28 00:44:55 -07:00
Chris Robinson
1f486f820e Use a separate structure for buffer storage 2020-08-28 00:09:46 -07:00
Chris Robinson
ecf30de36f Rename buffer_formats to buffer_storage 2020-08-27 23:02:17 -07:00
Chris Robinson
a9ebcdcb7f Handle 0-length convolution buffers 2020-08-27 21:32:25 -07:00
Chris Robinson
0ad7bb577a Don't allow callback buffers for effect slots 2020-08-27 21:10:00 -07:00
Chris Robinson
3c09f17421 Blend panned B-Format source directivity given its radius 2020-08-27 08:44:29 -07:00
Chris Robinson
2a01940041 De-duplicate LoadSampleArray and FmtTypeTraits 2020-08-26 21:29:16 -07:00
Chris Robinson
97ecf5810f Base the convolution example on the simpler stream example 2020-08-26 17:23:50 -07:00
Chris Robinson
577a8234f2 Recognize float32 format names for the example healpers 2020-08-26 17:15:30 -07:00
Chris Robinson
9dab2db33b Avoid copying the convolution filter history to shift it 
Instead, the current/head/newest segment is tracked, and decremented with each
process to overwrite the oldest.
 2020-08-25 15:43:48 -07:00
Chris Robinson
309be1c6f6 Add an example using convolution reverb 2020-08-25 04:59:04 -07:00