436 Commits

Author SHA1 Message Date
Chris Robinson
2b9064cb6e Move the ALcomplex and FFT functions to a separate file 2018-05-15 18:31:41 -07:00
Chris Robinson
197e88cdcc Avoid using unsigned values for signed 2018-05-15 01:20:39 -07:00
Chris Robinson
43dccc8807 Add a faster double-to-int converter for x87 builds 2018-05-14 18:00:43 -07:00
Chris Robinson
be30e6bf8f Don't assume the FPU is round-to-zero in the pitch shifter 2018-05-04 04:53:50 -07:00
Chris Robinson
ac8dbd7a56 Add a specific function for truncating float-to-int conversions 2018-05-03 22:02:32 -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
1cc6983b96 Use doubles for the pitch shifter's FFTs and processing 2018-04-24 21:40:41 -07:00
Chris Robinson
9c5307a48a Rename BiquadState to BiquadFilter 2018-04-04 18:07:46 -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
f757fbce4d Fix Hanning -> Hann window name 2018-03-24 14:18:29 -07:00
Chris Robinson
413d55aaa5 Fix a couple comments about coordinate handedness 2018-03-24 07:02:27 -07:00
Raulshc
6d8062a2a7 EFX: Align some arrays used in intrinsics (#180) 2018-03-24 05:43:56 -07:00
Chris Robinson
6990478369 Rename ALfilterState/Type to BiquadState/Type 2018-03-23 14:52:59 -07:00
Chris Robinson
63c35248be Some formatting cleanup 2018-03-22 11:32:23 -07:00
Chris Robinson
6685e0a078 Don't use an ALsizei for a potentially negative value 2018-03-22 11:11:45 -07:00
Chris Robinson
7789cc8e32 Define the Hanning window globally once for the pitch shifter 2018-03-22 09:55:15 -07:00
Chris Robinson
1d6622aa2b Fix a delta phase offset calculation in the pitch shifter
tmp can be negative, and &1 is not the same as %2 in that case.
2018-03-22 08:56:48 -07:00
Chris Robinson
eeff730034 Hold some immediate values on the stack 2018-03-22 08:49:35 -07:00
Chris Robinson
23fd7451d0 Avoid some memset calls in the pitch shifter process loop 2018-03-22 08:49:22 -07:00
Chris Robinson
bc3a96308e Use appropriately-sized buffers for the pitch shifter 2018-03-22 08:05:48 -07:00
Chris Robinson
7a23330ffe Move the filter implementation to a separate directory 2018-03-22 07:05:40 -07:00
Chris Robinson
091e676db3 Move mixer sources into a sub-directory 2018-03-22 05:06:15 -07:00
Chris Robinson
6ad171781a Use the global MixSamples for the pitch shifter output 2018-03-22 03:13:09 -07:00
Chris Robinson
d157d66678 Change a parameter type to float since that's what it's used as 2018-03-22 02:13:40 -07:00
Chris Robinson
4da6364fc2 Slightly restructure the pitch-shifter process loop 2018-03-22 02:10:51 -07:00
Chris Robinson
7b95753cf7 Fix typo (Substraction -> Subtraction) and rename related function 2018-03-21 23:10:12 -07:00
Chris Robinson
0a6c17c544 Don't auto-attenuate the pitch shifter output 2018-03-21 09:32:04 -07:00
Chris Robinson
f11d7eeadf Don't use mutable fields for constant values 2018-03-21 09:23:58 -07:00
Chris Robinson
22a7bcd5ad Avoid placing a 2K sample buffer on the stack 2018-03-21 09:01:32 -07:00
Chris Robinson
ecc51c8c55 Clean up some code formatting in the pitch shifter source
Clean up excessive newlines and extra-long comments, move static inline
definitions to their declarations.
2018-03-21 08:56:26 -07:00
kcat
c40b4ce3f2
Merge pull request #177 from Raulshc/Pitch-shifter
EFX:Pitch shifter
2018-03-21 08:35:09 -07:00
Raulshc
c38854fe3d
EFX:Own size for pitch shifter buffers 2018-03-19 16:48:00 +01:00
Chris Robinson
df6e4617e4 Fix the reverb panning behavior to better fit the spec
Previously it would attenuate the response from direction opposite to the
vector, whereas the property descriptions say it should simply move all
reflections toward the given direction.
2018-03-19 06:41:38 -07:00
Raulshc
6fd23f0984
EFX:Pitch Shifter implementation
Add pitch shifter effect using standard phase vocoder, based on work of Stephan Bernsee. Only mono signal processing by now.
2018-03-18 17:47:17 +01:00
Chris Robinson
3fde27d890 Use a macro template to define similar functions 2018-03-15 00:28:49 -07:00
Chris Robinson
445f63f350 Remove an extraneous + 2018-03-14 23:59:20 -07:00
Chris Robinson
942abab8f9 Move a loop into a function 2018-03-13 03:45:24 -07:00
Chris Robinson
52dee31270 Only calculate the modulation samples once for all 4 channels 2018-03-08 17:48:22 -08:00
Chris Robinson
22d3e3b563 Simplify modulator effect index updating 2018-03-08 17:48:21 -08:00
Chris Robinson
a211c2f5e4 Avoid AL prefix on internal effect state factory types
Also avoid using the generic V/V0 macros for them
2018-02-28 19:37:12 -08:00
Chris Robinson
b5aa0c0759 Remove the unnecessary ComputeAmbientGains 2018-02-18 23:56:51 -08:00
Chris Robinson
7a974b2460 Combine the vector reverse and partial scatter where they're together 2018-02-18 23:56:51 -08:00
Chris Robinson
1e93122470 Remove unused reverb modulation code
Still unsure how to handle reverb modulation without some kind of reference
output, so remove the related functions to not waste CPU time. It'll remain in
the Git history should it ever need to be resurrected.
2018-02-10 19:50:42 -08:00
Chris Robinson
20bee69955 Attempt to improve the reverb panning vectors
This should now retain the original orientation of the soundfield and merely
focus on the panning vector direction, as intended.
2018-02-08 01:18:40 -08:00
Chris Robinson
4cd04f192d Alter tha curve of the density-related delay scale
The delay scale is roughly linear with respect to room size, however the
density is not linear with room size. The density is calculated by taking the
room size cubed, then normalized by some factor. Unnormalizing the density and
taking the cube root restores the original room size to use as a delay scale.

The patch also alters the delay and all-pass line lengths to be based on a 1
meter room size, so the the room size recovered from the density acts as a
direct multiple for the desired target length.

Note that the room scale range is unchanged (5m to 50m), so the minimum and
maximum delays are the same. It should also be noted that 50m may not be the
correct room size for a density value of 1. A density value of 1 corresponds to
an environment size of roughly 2.52m when converted from EAX (DENSITY_SCALE
should be 16 rather than 125000), but sizes that low result in undesirable
resonance in the feedback, indicating other changes are necessary for that to
work.
2018-02-08 00:05:29 -08:00
Chris Robinson
da1ee3baba Revert "Don't fade the all-pass delay changes"
This reverts commit 799dfb732b4f49198d72649e86955ea82f45f229.
2018-02-04 19:57:22 -08:00
Chris Robinson
99f0377ae3 Construct error messages using parameterized values 2018-01-25 15:59:59 -08:00
Chris Robinson
2ded5547ba Provide messages for the remaining AL errors 2018-01-24 17:07:01 -08:00
Chris Robinson
e80b016cbe Use a global RowMixerFunc 2018-01-16 12:18:59 -08:00
Chris Robinson
14a0df03e8 Do more samples at once with the distortion effect 2018-01-16 08:49:15 -08:00