AuroraMiddleware/AuroraOpenALSoft
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348 Commits

Author SHA1 Message Date
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
Chris Robinson
0dc3f1984e Move the core mixer functions to a separate source file 2010-08-03 23:19:36 -07:00
Chris Robinson
e74976e645 Use a callback to specify the source update method 2010-08-03 23:10:00 -07:00
Chris Robinson
91278608c5 Add some spacing 2010-08-03 01:44:52 -07:00
Chris Robinson
8e2d765671 Move active source iteration to aluMixData 2010-08-03 01:09:02 -07:00
Chris Robinson
2af39e51f8 Separate speaker/panning initialization into another source file 2010-08-03 00:21:36 -07:00
Chris Robinson
41e2c41ecc Combine duplicate lines into the mixing macro 2010-07-31 21:09:59 -07:00
Chris Robinson
30108c7855 Remove an unnecessary variable 2010-07-31 19:14:27 -07:00
Chris Robinson
7eb124d99c Keep count of the number of samples played 2010-07-22 08:11:44 -07:00
Chris Robinson
6db3463d17 Fix backslash alignment for the single-channel mixer macro 2010-07-06 16:32:58 -07:00
Chris Robinson
7f6df7695c Use an array of active sources when mixing 
Prevents iterating over all allocated sources during mixing updates
 2010-06-06 00:17:50 -07:00
Chris Robinson
90db244b5f Skip mixing after checking looping validity 2010-06-03 03:58:04 -07:00
Chris Robinson
8cfac7c6b8 Don't bother storing the loop points in the source 2010-05-24 01:07:13 -07:00
Chris Robinson
6dab9d54d1 Use the loop start when filling in padding data for looping sources 2010-05-13 06:52:44 -07:00
Chris Robinson
7ed5d12717 Pay attention to the source loop points 2010-05-13 04:53:21 -07:00
Chris Robinson
23b2c1f902 Only use a modulo to loop when the source is static 2010-05-13 02:12:50 -07:00
Chris Robinson
af4faaf666 Use a UIntMap for the effect slot list 2010-05-12 02:20:14 -07:00
Chris Robinson
d678f1d88b Store looping locally when mixing a source 2010-05-12 00:38:04 -07:00
Chris Robinson
099c2f3593 Use a simple loop to set multi-channel dry gains 2010-05-09 22:06:10 -07:00
Chris Robinson
0378422fcb Use a map to store sources and buffers 
And do a lookup using a binary search instead of linear
 2010-05-01 19:59:41 -07:00
Chris Robinson
5d7815beed Only apply ambient gain to available output channels 2010-04-27 11:39:54 -07:00
Chris Robinson
110be7f500 Add an option to scale the output mix 2010-04-23 07:54:43 -07:00
Chris Robinson
a04dac670e Make stereo duplication a property of the device 
Further, don't use it with mono/stereo output
 2010-04-20 03:57:40 -07:00
Chris Robinson
fc2473f826 Translate the source position separately 
This is to handle the case where an app specifies the same values for the
source and listener, and expects centered panning. This fails due to floating-
point errors in the matrix, causing the result to be ever-so-slightly off of 0.

This error would normally be hidden by the position normalization, which will
not lengthen a distance shorter than the reference distance so the panning
would be nearly imperceptible. But that also fails if the reference distance
is set to 0, causing the position to expand to a full unit.

Keep the 4x4 matrix calculations, however. It will still be useful for the
requested listener matrix extension.
 2010-04-16 02:09:53 -07:00
Chris Robinson
000d848f0b Return immediately when no layout is specified 2010-04-11 23:03:36 -07:00
Chris Robinson
3c5007352e More type fixes 2010-04-11 20:17:43 -07:00
Chris Robinson
e0fa497948 Use a linear scaling when sending multi-channel sources to auxiliary slots 2010-04-11 15:20:46 -07:00
Chris Robinson
f082c73539 Use proper types for some variables 2010-04-11 14:33:22 -07:00
Chris Robinson
d4f8bd665f Only consider output speakers for the panning LUT 2010-04-11 14:23:10 -07:00
Chris Robinson
488ec612bb Avoid hard-coding the channel count 2010-04-09 14:21:47 -07:00
Chris Robinson
484702a2e5 Get the speaker arrangement before setting up the channel matrix 2010-04-09 12:27:30 -07:00
Chris Robinson
371058fb9e Re-enable stereo duplication 2010-04-08 23:00:14 -07:00
Chris Robinson
97b00670f5 Use the proper type for the speaker-to-channel map 2010-04-08 18:05:24 -07:00
Chris Robinson
aace50ebf4 Store the panning LUT in the device 2010-04-08 15:58:11 -07:00
Chris Robinson
49201e892b Use a single layout for the virtual speakers 
The downmix should probably be improved to take the angles into account
 2010-04-08 15:41:32 -07:00
Chris Robinson
068c0076af Set the device channel matrix when the device is reset 2010-04-08 15:02:03 -07:00
Chris Robinson
37c93a6ad8 Always mix internally at 8.1 
The channels are remixed when writing to the output buffer. Stereo duplication
is currently broken, but this can be restored later
 2010-04-08 14:47:12 -07:00
Chris Robinson
1b1c76da34 Invert device channel map array 2010-04-08 13:11:21 -07:00
Chris Robinson
eea23a012a Relax circular layout requirement 2010-03-20 00:54:44 -07:00
Chris Robinson
ec917e8e2f Rename some struct members for consistency 2010-03-16 15:37:41 -07:00
Chris Robinson
08b1bed38b Remove a couple incorrect comments 2010-03-10 07:16:53 -08:00
Chris Robinson
1f10195c47 Use powf when available 2010-03-07 22:12:33 -08:00
Chris Robinson
931f5875cd Fix speaker angle fixup 2010-01-12 09:11:46 -08:00
Chris Robinson
505f61ff43 Properly trace the invalid speaker angle 2010-01-12 08:50:32 -08:00
Chris Robinson
574792d2e1 Fix Windows compilation 2010-01-11 23:47:03 -08:00
Chris Robinson
ab2eb5a603 Check buffer size when copying padding instead of the data pointer 2010-01-11 10:58:33 -08:00
Chris Robinson
3d7f925d52 Add helpful values to the resampler enum 2010-01-11 07:02:29 -08:00
Chris Robinson
93b584ff84 Add a cosine resampler 2010-01-11 06:19:54 -08:00
Chris Robinson
705849ca73 Add an option for point resampling 2010-01-11 05:37:20 -08:00
Chris Robinson
1a57f095e8 Hold global lock during mixing only when iterating device contexts 2010-01-11 03:57:49 -08:00
Chris Robinson
a0ef7be9a5 Improve layout parsing and allow using long names for speakers 2009-12-28 11:49:55 -08:00
Chris Robinson
7f0c6629b9 Use a 64-bit value to scale potentially-large numbers 2009-12-24 15:41:45 -08:00
Chris Robinson
ddfad996a9 Don't render mono as stereo 2009-12-21 02:59:30 -08:00