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Author SHA1 Message Date
Chris Robinson
ac8dbd7a56 Add a specific function for truncating float-to-int conversions 2018-05-03 22:02:32 -07:00
Chris Robinson
d8a659c6f2 Avoid fastf2i in the converter init 2018-05-03 17:27:30 -07:00
Chris Robinson
af90d89b6b Use a fixed-point scale for the pitch shifter frequency index 2018-05-03 17:06:55 -07:00
Chris Robinson
a19296e3cf Avoid excessive if block depths 2018-05-02 21:06:57 -07:00
Chris Robinson
85c03925fb Avoid duplication for getting the cpuid 2018-05-02 20:59:53 -07:00
Chris Robinson
22413b82ca Pass in the number of channels per order to InitNearFieldCtrl 2018-05-01 20:21:24 -07:00
Chris Robinson
e8aaa9cb13 An output device buffer is likely 2018-04-29 18:03:33 -07:00
Chris Robinson
2385ab700c Avoid potentially calling log10f(0) 2018-04-29 14:02:33 -07:00
Chris Robinson
242ed45f65 Rename some struct members for clarity 2018-04-28 22:10:22 -07:00
Chris Robinson
e420752e82 Fix a comment about a float's mantissa 2018-04-28 18:52:40 -07:00
Chris Robinson
54109043b8 Remove some unnecessary floor calls 2018-04-28 01:14:17 -07:00
Chris Robinson
ddd4751f87 Increase the band-split IR for decoding ambisonics to HRTF 2018-04-27 18:42:26 -07:00
Chris Robinson
492c75cb7b Rename some variables for clarity 2018-04-27 00:41:02 -07:00
Chris Robinson
1e0728af64 Transpose the band-splitter all-pass section 2018-04-26 23:26:11 -07:00
Chris Robinson
1cc6983b96 Use doubles for the pitch shifter's FFTs and processing 2018-04-24 21:40:41 -07:00
Chris Robinson
8311b57ca6 Update ChangeLog 2018-04-24 00:18:02 -07:00
Chris Robinson
510efae066 Don't specialize biquad processing for a single sample 2018-04-24 00:17:07 -07:00
Chris Robinson
b3ba90f5fa Use transposed direct form 2 for the UHJ all-pass filters 
This has one extra multiply, but avoids two moves and uses almost half as much
memory for the encoder state.
 2018-04-22 03:34:29 -07:00
Chris Robinson
e10595df31 Pre-calculate the squares of the UHJ filter coefficients 2018-04-22 02:39:14 -07:00
Chris Robinson
b51d30f84d Change some if checks to asserts since they must be true 2018-04-22 02:38:09 -07:00
Chris Robinson
ea8b52ee2c Include header files in CMake's source lists 2018-04-21 23:42:04 -07:00
Chris Robinson
9575eebac4 Move the bnad-splitter filters to a separate source 2018-04-21 23:23:46 -07:00
Chris Robinson
ace8e64850 Only use fast float-to-int workarounds for x87 
At least SSE and ARM have opcodes that handle float-to-int conversions well
enough. Also, Clang doesn't inline lrintf, incurring function call overhead for
what should be a single opcode.
 2018-04-21 21:07:20 -07:00
Chris Robinson
4ee26f4ca3 Add some more ASSUME statements 2018-04-21 02:44:01 -07:00
Chris Robinson
a55c93e1f5 Improve ASSUME for Clang 
For some reason, the { if(!x)__builtin_unreachable(); } construct does not
provide the same optimization opportunity for Clang (even though the condition
being false would trigger undefined behavior by reaching unreachable code, it
still performs checks and such for the condition potentially being false).
Using __builtin_assume seems to work better.
 2018-04-21 01:54:43 -07:00
Chris Robinson
400ab8766c Adjust the stereo panning front gain 
This gives it a (more) precise -4.5dB gain drop for front-center panned sounds.
 2018-04-19 21:55:20 -07:00
Chris Robinson
90b8d639f1 Remove unnecessary undefs 2018-04-19 18:24:27 -07:00
Chris Robinson
525b6fe168 Clear ALSA's PCM handle after closing it 2018-04-19 12:22:39 -07:00
Chris Robinson
f96a8fe369 Add some ASSUME statements that ensure mixing at least 1 sample 2018-04-18 20:39:52 -07:00
Chris Robinson
150586d7fe Add an ASSUME macro that requires a true condition 2018-04-17 22:50:50 -07:00
Chris Robinson
09194fd488 Accumulate the B-Format HRTF responses using doubles 
The final result is still truncated to single-precision float, but this should
keep the responses more stable as it accumulates the various inputs.
 2018-04-17 21:27:47 -07:00
Chris Robinson
e619b64175 Don't minimize the HRTF per-response delay 
The reverts both fa9ab9af7cb559ff9ecc1846f2996265bfbea1ec and
79604c3c0e0f3f71832a09348cc273a38882cc3e. As helpful as it was for the high
frequencies, the overall response's gain suffered.
 2018-04-16 18:54:41 -07:00
Chris Robinson
795ed65797 Preliminary ChangeLog update 2018-04-15 19:01:38 -07:00
Chris Robinson
5b82dd8733 Update .gitignore 2018-04-14 13:02:21 -07:00
Chris Robinson
9c5307a48a Rename BiquadState to BiquadFilter 2018-04-04 18:07:46 -07:00
Chris Robinson
b1fe405861 Improve ordering of channel processing in makehrtf 2018-04-03 11:21:15 -07:00
Chris Robinson
869637af2e Apply biquad and T60 filters using transposed direct form II 2018-04-03 10:15:35 -07:00
Chris Robinson
414b56edec Initialize COM using the multithreaded apartment 
I honestly have no idea which is the correct (or better) mode to use given the
confusing mess COM is, but CoInitialize uses single-threaded apartments which
seems to be a problem for with at least a couple games in the STALKER series
(the call fails, which causes us to drop back to the DSound backend).
 2018-04-01 16:39:20 -07:00
Chris Robinson
334bc4f551 Limit the near-field control distance to 10m. 2018-03-31 23:11:48 -07:00
Chris Robinson
e288c3b44a Fix HRTF HOA coefficients 
ACN8 was accidentally put on ACN7. However, rather than adding the missing
channel of silence, set up the coefficient map to only use the ambisonic
channels that can contribute to output.
 2018-03-31 20:44:14 -07:00
Chris Robinson
91900b0599 Fix misspellings of quadraphonic 
AL_LOKI_quadriphonic is left alone since that is what the extension is called
and what code expects. All other instances have been fixed for consistency.
 2018-03-30 09:18:17 -07:00
Chris Robinson
29ae74d4bb Fix lower elevation synthesis for stereo HRTFs 2018-03-29 20:44:44 -07:00
Chris Robinson
a2c24ff946 Specify Libs.private for the pkg-config file 
Only used when building the static lib for its dependencies, since the shared
lib automatically handles its own dependencies.
 2018-03-29 18:57:48 -07:00
Chris Robinson
61de399806 Don't cache SDL2_LIBRARY_TEMP with CMake 
Otherwise it keeps prepending and appending the same extra libs and flags with
each invocation.
 2018-03-29 18:10:58 -07:00
Chris Robinson
f48a1e3a31 Add simple descriptions to some extension formats in alext.h 2018-03-29 17:18:24 -07:00
Chris Robinson
4a8c3b50b6 Apply the initial decay and air absorption after gain clamping 2018-03-29 16:11:46 -07:00
Chris Robinson
852ad41176 Pass the azimuth and elevation to CalcPanningAndFilters 2018-03-29 16:11:46 -07:00
Chris Robinson
880d555060 Combine two loops 2018-03-29 16:11:46 -07:00
kcat
5523913a81
Merge pull request #184 from hhyyrylainen/master 
Added missing string include to alffplay
 2018-03-29 16:11:13 -07:00
Henri Hyyryläinen
a7da29804d Added missing string include to alffplay 2018-03-30 01:53:55 +03:00