300 Commits

Author SHA1 Message Date
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
Chris Robinson
ca1ec4b221 Fix some comments 2010-11-26 18:01:29 -08:00
Chris Robinson
facb922f3e Properly clamp high pitch values 2010-11-26 17:47:43 -08:00
Chris Robinson
1cb29ece08 Make a FRACTIONONE macro, and use it 2010-11-26 01:21:46 -08:00
Chris Robinson
98d78f7ff9 Slightly improve channel gain calculations 2010-11-26 00:24:54 -08:00
Chris Robinson
e1c0b5ea24 Call MixSource directly, instead of through a function pointer 2010-11-25 23:09:18 -08:00
Chris Robinson
6ab22e7cbb Reorder some stored source params 2010-11-24 10:01:50 -08:00
Chris Robinson
a7b4e0b5c5 Get rid of the device timer stuff 2010-11-21 06:32:59 -08:00
Chris Robinson
e884da50ea Move aluMixData back to ALu.c 2010-11-21 02:51:18 -08:00
Chris Robinson
07346da740 Use the number of sends the device is configured for in more places 2010-11-06 14:27:33 -07:00
Chris Robinson
314832e35a Rename a couple more variables 2010-10-10 04:00:50 -07:00
Chris Robinson
6a9dd185e6 Improve naming and placement of a couple variables 2010-10-10 03:47:57 -07:00
Chris Robinson
2172827f43 Simplify a calculation 2010-10-09 15:24:24 -07:00
Chris Robinson
117ed52091 Better protect against negative attenuation 2010-09-24 13:16:09 -07:00
Chris Robinson
8a0e15ff37 Store air absorption factor locally 2010-09-12 00:10:33 -07:00
Chris Robinson
8953a73fb1 Prevent effectiveDist from going negative 2010-09-11 23:57:15 -07:00
Chris Robinson
8003278a55 Combine non-attenuated source calculation functions 2010-08-07 06:57:31 -07:00
Chris Robinson
5f22d30fc9 Calculate the source stepping value with the param calculations 2010-08-07 05:43:16 -07:00
Chris Robinson
f4304ca062 Calculate the actual stepping value in the source update method 2010-08-07 00:38:02 -07:00
Chris Robinson
98bc60cfb7 Combine stereo and stereo-duplicate mixers
Use a separate update method for stereo sources to the set appropriate channel
gains
2010-08-05 01:07:20 -07:00