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340 Commits

Author SHA1 Message Date
Chris Robinson
ba069ded40 Add an OpenSL backend 
Currently for Android's OpenSL ES implementation
 2011-06-12 04:41:42 -07:00
Chris Robinson
ccf62fc525 Add wrappers to handle dyanmically loading libs 2011-06-12 04:36:24 -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
884f668855 Uninline a couple more functions 2011-05-29 03:28:34 -07:00
Chris Robinson
2bbe9d1b1f Uninline a couple mutex wrapper functions 2011-05-29 03:08:26 -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
a9d9553fff Use a multi-dimensional array for the panning LUT 2011-05-21 17:45:54 -07:00
Chris Robinson
35a0430c81 Store the separate effect parameters in a union 2011-05-20 09:36:36 -07:00
Chris Robinson
7396aaf2c2 Fix HRTF elevation calculation 2011-05-19 17:57:14 -07:00
Chris Robinson
b838d123f8 Multiply the history offset in the filtering funcitons 2011-05-18 18:52:47 -07:00
Chris Robinson
194f8fc791 Uninline lpCoeffCalc 2011-05-18 18:42:25 -07:00
Chris Robinson
c00b2f9254 Avoid looking in the buffer queue to find the frame size 2011-05-18 17:02:18 -07:00
Chris Robinson
06f5f0b7c8 Make mixers channel-count agnostic 
As a result, this combines/removes a bunch of mixers
 2011-05-17 13:25:15 -07:00
Chris Robinson
2940b0f390 Add a skeleton backend for MMDevApi 2011-05-15 20:26:25 -07:00
Chris Robinson
b3902c8950 Add functions to get strings from the device format 2011-05-15 04:03:15 -07:00
Chris Robinson
c9ac4f06ff Remove an unused macro and rename another 2011-05-07 04:35:49 -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
4198f3062c Remove the device channel matrix 2011-05-06 04:42:54 -07:00
Chris Robinson
e608317e70 Fix device flag value 2011-05-06 01:59:32 -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
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
679f2480c9 Add a device flag for channel config requests 2011-05-03 17:11:07 -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
ba236ad108 Add a frequency-request device flag 2011-05-03 02:29:26 -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
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
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
63f07db303 Add the SOFT moniker for the loopback extension functions and enums 2011-04-28 11:37:23 -07:00
Chris Robinson
650d94e1a6 Change some sample type values 2011-04-27 12:20:50 -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
4bdedc7fde Use more appropriate enum values 2011-03-18 07:28:06 -07:00
Chris Robinson
9be625d6e8 Add some new format names 2011-03-17 08:42:25 -07:00
Chris Robinson
be37f10fed Add alIsBufferFormatSupportedSOFT 2011-03-16 13:57:00 -07:00
Chris Robinson
575195a283 Add alGetBufferSamplesSOFT 2011-03-16 12:56:39 -07:00
Chris Robinson
f5c4e67aef Add alBufferSubSamplesSOFT 2011-03-16 12:13:17 -07:00
Chris Robinson
2f7de9d696 Add alBufferSamplesSOFT, as an initial start to AL_SOFT_buffer_samples 2011-03-16 11:29:22 -07:00
Chris Robinson
4a1c0fedca Use the defines for the UserFmt* and Fmt* types 2011-03-16 05:47:07 -07:00
Chris Robinson
d6c8bb35b4 Add a CoreAudio backend 
Code courtesy of Garin Hiebert <garinh@cheesetoast.net>
 2011-03-15 04:58:56 -07:00
Chris Robinson
b1d4508d90 Use a loop to make sure the requested effect is not disabled 2011-03-12 20:54:49 -08:00
Chris Robinson
8249dc8559 Combine multiple lists into one 2011-03-12 20:37:22 -08:00
Chris Robinson
73123bc313 Add support for ALC_EXT_DEDICATED 2011-03-12 20:11:25 -08:00
Chris Robinson
031a2a1b1e Implement a basic non-real-time loopback device 
Currently it behaves just like a normal device except contexts are only
processed during calls to alcRenderSamples. Additionally, the ALC_SYNC and
ALC_REFRESH context attributes are not valid for these devices, and there are
two new context attributes to specify the rendering format: ALC_FORMAT_TYPE
and ALC_FORMAT_CHANNELS. These each take one of the type and channel enums
added.
This stuff is subject to change.
 2011-03-11 00:13:44 -08:00
Chris Robinson
d9126eeb2c Finalize the loop points extension as AL_SOFT_loop_points 2011-02-09 22:54:12 -08:00