Chris Robinson
1fc44d5788
Select the mixer during a source update
2011-06-25 00:13:56 -07:00
Chris Robinson
3dcfd0dc98
Use 'Distance' for the unclamped distance value, since the clamped value is
...
only used for distance attenuation
2011-06-21 12:55:21 -07:00
Chris Robinson
40b8934487
Calculate wet gain when needed
2011-06-18 16:45:26 -07:00
Chris Robinson
753e64c76c
Do stereo duplication in two passes
...
First using the rear channels, then using the normal stereo channels
2011-06-17 16:20:18 -07:00
Chris Robinson
8bee7a2b7f
Don't suspend individual contexts when updating
2011-06-16 05:29:38 -07:00
Chris Robinson
7ddfacb58f
Use a minimum phase HRTF data set
...
This reduces the coefficient size from 128 down to 32, with a set of delays
2011-06-03 01:06:00 -07:00
Chris Robinson
7da2eea8f0
Add a 5.1 device format that uses side channels instead of back
2011-05-28 19:35:32 -07:00
Chris Robinson
6b6a7757ce
Clear HRTF coefficients for the LFE channel
2011-05-25 19:04:19 -07:00
Chris Robinson
af005668da
Avoid using an unnecessary temp variable
2011-05-21 23:14:55 -07:00
Chris Robinson
a9d9553fff
Use a multi-dimensional array for the panning LUT
2011-05-21 17:45:54 -07:00
Chris Robinson
5cdf774ea7
Use the stored sample and channel count
2011-05-21 17:36:54 -07:00
Chris Robinson
35a0430c81
Store the separate effect parameters in a union
2011-05-20 09:36:36 -07:00
Chris Robinson
cbbb04eb40
Always fully normalize the position when using HRTF
2011-05-20 07:58:05 -07:00
Chris Robinson
7396aaf2c2
Fix HRTF elevation calculation
2011-05-19 17:57:14 -07:00
Chris Robinson
7210796cb8
Combine multiple loops
2011-05-15 02:12:42 -07:00
Chris Robinson
949cfe2ceb
Re-enable duplication for stereo sounds
2011-05-15 00:18:28 -07:00
Chris Robinson
674b14faa3
Make a couple more pointers restricted
2011-05-07 04:32:53 -07:00
Chris Robinson
a8fdcd30a5
Some minor cleanups
2011-05-07 04:31:43 -07:00
Chris Robinson
db3cb23c1d
Add an option to reverse Z panning of mono sources
...
Applications that are not built around OpenAL's orientation system need to
convert their given vectors to it. Depending on how this is done, it can lead
to proper stereo (left-right) panning with improper surround sound (front-back)
panning, which thusly sounds correct with stereo output and incorrect with 4+
channel output.
This option is intended to help fix playback of such applications on surround
sound systems, without having to resort to forcing stereo output.
2011-05-07 03:54:46 -07:00
Chris Robinson
7972f7a2da
Combine duplicate arrays
2011-05-06 23:25:15 -07:00
Chris Robinson
8c3d50be28
Skip LFE with HRTF output
2011-05-06 04:46:21 -07:00
Chris Robinson
c2a6efc77a
Use the panning algorithms to build the multi-channel source matrix
...
This prevents the stereo-duplication option from working. It should hopefully
be restored soon.
2011-05-06 04:37:10 -07:00
Chris Robinson
6928487aa1
Remove some redundancy
2011-05-06 02:53:22 -07:00
Chris Robinson
f97eca34df
Minor source update fixes
2011-05-06 00:51:12 -07:00
Chris Robinson
1363e044ac
Remove the head_dampen option
...
Now that HRTF is properly supported, it's not needed
2011-05-06 00:38:10 -07:00
Chris Robinson
9967d4eadd
Mark a couple more pointers as restricted
2011-05-06 00:33:58 -07:00
Chris Robinson
e2850df07e
Use the same filters for mono sources and multi-channel
2011-05-03 16:18:46 -07:00
Chris Robinson
9a28402b90
Fix non-spatialized mono sources
2011-05-02 18:33:32 -07:00
Chris Robinson
f843b7e2e3
Implement HRTF mixers for multi-channel sources
2011-05-02 02:22:30 -07:00
Chris Robinson
eea86ab891
Use flags instead of separate bools
2011-05-01 18:18:37 -07:00
Chris Robinson
56d9418119
Add an HRTF filter for mono sources
...
The data is based on the KEMAR HRTF data provided by MIT, which can be found at
<http://sound.media.mit.edu/resources/KEMAR.html >. The compact measurements
were used. See hrtf_tables.inc for more information.
The filter is only available for stereo output, using a 44100hz playback rate.
Note also that it currently only applies to mono sounds, and the cf_level and
head_dampen config options are ignored while it is active.
2011-05-01 13:59:44 -07:00
Chris Robinson
10a9753183
Add a compatibility option to treat cone angles as half angles
...
All previous versions of the library treated the source cone angles as half
angles, which is contrary to the spec. Setting the __ALSOFT_HALF_ANGLE_CONES
environment variable to "true" or "1" restores the buggy behavior for
compatibility with applications that expect it.
This is not a config file option because new apps should not be made to depend
on the old behavior.
2011-04-22 23:17:27 -07:00
Chris Robinson
1e8718fe87
Convert full-width cone angle source properties to half-width
...
The spec intends the property values to be the full angle encompassed by the
cones, but the calculation interprets them as the angle from the center
point.
2011-04-22 22:59:58 -07:00
Chris Robinson
678d0b87d0
Apply the device matrix to the multi-channel source matrix
...
Mono sources and effects already output according to the available output
device channels. Multiplying the device matrix with the source matrix results
in a matrix that has the same effect as applying the source matrix followed by
the device matrix, so all the channel remixing can be done in one place.
2011-04-14 21:03:37 -07:00
Chris Robinson
4eeed5376f
Invert the device matrix row/column
...
It is accessed now as mat[target][source]
2011-03-13 08:46:54 -07:00
Chris Robinson
77ad538e68
Remove more unneeded casts
2011-03-13 07:11:09 -07:00
Chris Robinson
b699aca65b
Remove unnecessary casts
2011-03-13 06:34:41 -07:00
Chris Robinson
c3cd4c80b2
Use a matrix when rendering to the dry buffer
2010-12-09 16:37:23 -08:00
Chris Robinson
be3f3c4bf0
Make better use of the type range when converting from float
2010-12-09 05:06:29 -08:00
Chris Robinson
4010a6b745
Remove some now-unused functions
2010-12-08 02:56:24 -08:00
Chris Robinson
88e3a22772
Separate device format into 'channel config' and 'sample type' components
2010-12-04 19:50:00 -08:00
Chris Robinson
59990acc2a
Add functions to write (signed) byte and ushort samples to devices
2010-12-02 16:36:37 -08:00
Chris Robinson
4a0bf9fd44
Template-ize the device buffer writing functions
2010-12-01 21:50:49 -08:00
Chris Robinson
9e8fb89a52
Rename OUTPUTCHANNELS to something more descriptive
2010-12-01 18:33:17 -08:00
Chris Robinson
0cf32e2946
Reorder some parameters for consistency
2010-11-29 19:48:18 -08:00
Chris Robinson
da4f5c6f96
Uninline some functions
...
Also add -Winline to the compiler command line to watch for future inline problems
2010-11-28 19:52:17 -08:00
Chris Robinson
0e748d98d5
Rename some stuff for consistency
2010-11-28 13:08:51 -08:00
Chris Robinson
c41e893361
Don't store the internal format in the buffer
...
The type and channel config are good enough
2010-11-28 12:53:35 -08:00
Chris Robinson
d2895c7985
Use the enums in a couple more places
2010-11-27 00:15:07 -08:00
Chris Robinson
4d4d699780
Fix step calculations
2010-11-26 20:17:05 -08:00
