Commit Graph

1382 Commits

Author SHA1 Message Date
Chris Robinson
c9ac4f06ff Remove an unused macro and rename another 2011-05-07 04:35:49 -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
4198f3062c Remove the device channel matrix 2011-05-06 04:42:54 -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
e608317e70 Fix device flag value 2011-05-06 01:59:32 -07:00
Chris Robinson
64b5d7a519 Check the correct flag in the dsound backend 2011-05-06 01:53:13 -07:00
Chris Robinson
eef41e76d7 Don't clear the request flag if a new context doesn't specify a frequency 2011-05-06 01:50:19 -07:00
Chris Robinson
d583f7f307 Update sources automatically when device parameters change 2011-05-06 01:06:01 -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
2972de1047 Use function pointers to call the source mixer 2011-05-06 00:20:40 -07:00
Chris Robinson
38db4115fc Fix a comment 2011-05-05 22:36:26 -07:00
Chris Robinson
0e824914b2 Use signed samples for 8-bit storage 2011-05-05 18:54:10 -07:00
Chris Robinson
7832a6d1d8 Add a warning when HRTF is disabled 2011-05-03 20:23:35 -07:00
Chris Robinson
0cce93a1f8 Fix WinMM backend compilation 2011-05-03 17:12:05 -07:00
Chris Robinson
679f2480c9 Add a device flag for channel config requests 2011-05-03 17:11:07 -07:00
Chris Robinson
db7ca2c7ca Combine the mono and multi-channel mixer templates 2011-05-03 16:34:28 -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
48def2fecb Properly handle elevations that don't have angles up to 180 2011-05-03 03:15:28 -07:00
Chris Robinson
ba236ad108 Add a frequency-request device flag 2011-05-03 02:29:26 -07:00
Chris Robinson
9a28402b90 Fix non-spatialized mono sources 2011-05-02 18:33:32 -07:00
Chris Robinson
8c705cc4ea Mark some mixer pointers as restricted 2011-05-02 17:14:57 -07:00
Chris Robinson
24aaa24b5c Check for the C99 restrict keyword
GCC does not default to C99 mode yet, so does not know restrict, however it
still allows using __restrict in its place
2011-05-02 17:06:32 -07:00
Chris Robinson
fd795a7eeb Add casts to silence some warnings 2011-05-02 15:04:35 -07:00
Chris Robinson
abdc254e55 Use a pointer-to-arrays for the local HRTF coefficients 2011-05-02 13:35:13 -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
d7a452588c Document the hrtf config option 2011-05-01 14:16:05 -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
0109104027 Add some source fields for HRTF data 2011-05-01 13:21:56 -07:00
Chris Robinson
c9c965ef85 Add a device flag for enabling HRTF 2011-05-01 13:19:23 -07:00
Chris Robinson
af3adf5244 Be silent if the PulseAudio context fails to connect while probing 2011-04-30 17:58:37 -07:00
Chris Robinson
43f97b4da1 Use the new format names when possible 2011-04-29 11:55:59 -07:00
Chris Robinson
63f07db303 Add the SOFT moniker for the loopback extension functions and enums 2011-04-28 11:37:23 -07:00
Chris Robinson
2e9ca89dd3 Reorder some cases 2011-04-27 21:05:46 -07:00
Chris Robinson
8586aeabe8 Minor fix for 24-bit conversions to float and double 2011-04-27 19:26:27 -07:00
Chris Robinson
c031b4d5d0 Allow MSVC to build a static lib
Based on a patch by Michał Cichoń <michcic@gmail.com>
2011-04-27 16:33:44 -07:00
Chris Robinson
d91b3464a4 Fix 24-bit sample loading for big-endian 2011-04-27 15:46:30 -07:00
Chris Robinson
650d94e1a6 Change some sample type values 2011-04-27 12:20:50 -07:00
Chris Robinson
543134a6d2 Add loopback device properties to the ALCenum list 2011-04-27 12:18:24 -07:00
Chris Robinson
ab2626f9df Add a couple in-progress extensions to the extension lists 2011-04-27 12:15:16 -07:00
Chris Robinson
d50f9249d6 Add support for packed 24-bit samples 2011-04-26 18:17:50 -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