a359cb85e6
Mix each frequency band individually for ambisonic upsampling
2018-12-16 22:37:29 -08:00
3b0fd20bee
Always use the transcode method with the AmbiUpsampler
2018-12-16 21:03:24 -08:00
064f4f500a
Avoid extraneous alignment requirements
2018-12-16 01:27:52 -08:00
741861eaa6
Put the ACN index map in a header
...
Also put it and the Ambisonic scales in a more appropriate header.
2018-12-15 23:28:49 -08:00
a6a5634adb
Reorder some math terms to help optimizations
...
Because floating-point math is not associative ((a*b)*c does not necessarily
give the same result as a*(b*c)), the ordering of terms can inhibit reuse of
temporary values. For example, both
coeffs[9] = 2.091650066f * y * (3.0f*x*x - y*y);
and
coeffs[15] = 2.091650066f * x * (x*x - 3.0f*y*y);
contain x*x and y*y terms that could be calculated once, stored in temporary
registers, and reused to multiply with 3. But since 3.0f*(x*x) would produce
different results, the compiler is not allowed to make that optimization. If,
however, the multiply with 3 is moved to the right side:
coeffs[9] = 2.091650066f * y * (x*x*3.0f - y*y);
and
coeffs[15] = 2.091650066f * x * (x*x - y*y*3.0f);
in both cases x*x and y*y are calculated first in their respective groups,
guaranteeing the same results for both instances prior to the multiply with 3
and allowing the compiler to reuse those intermediate values.
2018-12-15 20:28:52 -08:00
dea077cbae
Add encoding calculations for fourth-order ambisonics
2018-12-15 19:23:42 -08:00
e0f635b20d
Move some ambisonic-related macros to a separate header
2018-12-15 03:30:47 -08:00
0dd13a9dfe
Make the AmbDec speaker and matrix arrays dynamic
2018-12-15 02:56:19 -08:00
640c06c292
Avoid some explicit loop counts
2018-12-15 01:48:54 -08:00
4d36730baa
Clean up panning.cpp a bit
2018-12-15 00:38:38 -08:00
2d13e0af29
Add macros for the ambisonic order masks
2018-12-14 23:26:44 -08:00
0882728dec
Cleanup bformatdec.cpp a bit
2018-12-13 22:48:02 -08:00
d18ae81e9c
Add POPCNT32 and CTZ32 macros
2018-12-13 22:05:47 -08:00
0d73b13f59
Add more casts for MSVC
2018-12-12 21:58:41 -08:00
b779ebb512
Fix some MSVC conversion warnings
2018-12-12 21:18:31 -08:00
b37bc9f8b7
Fix an MSVC warning
2018-12-12 19:24:06 -08:00
43f6a7c626
Remove an unused source
2018-12-12 04:34:09 -08:00
5a283c66ee
Use proper classes for Vector and Matrix types
2018-12-12 04:22:11 -08:00
19c5c41c70
Cleanup alu.cpp some
2018-12-12 01:09:04 -08:00
0d36ba0fbb
Use helpers to get the Ambisonic scales and layout maps
2018-12-10 22:35:32 -08:00
e87eb07db4
A bit more cleanup
2018-12-10 21:30:22 -08:00
ed18fd76c5
Clean up a few more loops
2018-12-10 14:49:57 -08:00
d91ada2e02
Add missing header
2018-12-10 02:13:57 -08:00
9bb7ed0129
Put static methods into an anonymous namespace
2018-12-10 02:08:54 -08:00
0d56c59f14
Avoid some more explicit loops
2018-12-10 00:01:13 -08:00
0a805727db
Use std::accumulate to find the max channel count
2018-12-09 18:16:00 -08:00
b1beb7dfdc
Avoid some more explicit loops
2018-12-09 17:24:00 -08:00
efb8e076c7
Pass a reference to an array for a function parameter
2018-12-09 15:21:24 -08:00
6c8f45b5f6
Rename a couple global variables
...
Avoid clashing with an enum name
2018-12-09 15:07:44 -08:00
d7d9870839
Add default construction to HrtfEntry
2018-12-09 13:36:13 -08:00
621f0dfe73
Use a vector for LoadedHrtfs
2018-12-09 03:04:18 -08:00
e5db9b2378
Avoid static global initialization functions
2018-12-08 21:58:44 -08:00
a4009c47e7
Add a cmake option to specify prebuilt native tools
...
This should only be used with automated build systems that guarantee the native
tools' binaries are up-to-date. Otherwise it's best to leave it alone so it can
automatically rebuild them as needed.
2018-12-08 17:22:10 -08:00
30a3a19574
Rename a member variable and inline a function
2018-12-08 16:30:19 -08:00
c9f5617f06
Avoid several uses of memset
2018-12-08 14:22:20 -08:00
fc8da0c16b
Add missing include
2018-12-08 13:06:31 -08:00
5a9a2cb1ed
Increase GAIN_MIX_MAX
2018-12-08 04:10:59 -08:00
9e9b771e8a
A bit more cleanup
2018-12-08 04:10:45 -08:00
5ea3c8fb60
Use member functions for BFormatDec and AmbiUpsampler
2018-12-08 02:50:34 -08:00
7695afe0cb
Clean up some more loops
2018-12-08 02:15:00 -08:00
a603cc906f
Inline a simple method
2018-12-08 00:08:39 -08:00
ab5a11d5f3
Avoid using the deprecated mem_fun_ref method
2018-12-07 21:46:22 -08:00
6e4c856257
Add fourth-order methods to the NFC filter
...
Unused, but it finishes out the currently possible implementations.
2018-12-07 18:38:56 -08:00
0f24139b57
Use a constructor instead of a macro to initialize AsyncEvent
2018-12-06 22:24:20 -08:00
42d26472eb
Remove some more explicit loops
2018-12-05 17:11:33 -08:00
e60d0886d0
Use class methods for BandSplitter and SplitterAllpass filters
2018-12-05 15:38:05 -08:00
10b39d57d5
Use class methods for the NFC filters
2018-12-05 15:20:52 -08:00
164a86a381
Use class methods for the biquad filter
2018-12-04 22:31:08 -08:00
36a8b615c8
Avoid using AL types with the filters
2018-12-04 20:55:10 -08:00
2a30ae3807
Avoid some more explicit loops in the filters
2018-12-04 20:35:23 -08:00
Chris Robinson