AuroraMiddleware/AuroraOpenALSoft
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58 Commits

Author SHA1 Message Date
Chris Robinson
8a1d5a21c3 Reduce some indentation 2010-09-21 15:12:08 -07:00
Chris Robinson
301a8ba3a4 Improve some range checks 2010-09-21 14:41:43 -07:00
Chris Robinson
e5cae87502 Handle clicks by watching changes between updates 2010-08-16 14:53:21 -07:00
Chris Robinson
00525274a0 Add click removal for wet sends 2010-08-15 14:52:12 -07:00
Chris Robinson
4edd7fe647 Use a map for the effects list 2010-05-18 17:41:06 -07:00
Chris Robinson
af4faaf666 Use a UIntMap for the effect slot list 2010-05-12 02:20:14 -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
b273d616ad Implement a skeleton Ring Modulator effect 2010-04-08 08:54:28 -07:00
Chris Robinson
7bdf0d5156 Shorten some variable names 2010-03-26 00:41:27 -07:00
Chris Robinson
f77832fea2 Remove unnecessary NULL check 2010-03-24 03:43:37 -07:00
Chris Robinson
3e9934e810 Mark extension functions with AL_API/ALC_API 2010-03-23 17:44:01 -07:00
Chris Robinson
49db3bf916 Cleanup and fixup Release* functions 2010-03-20 21:49:02 -07:00
Chris Robinson
99f28f25b0 Avoid calling alDelete* from alGen* 2010-03-20 21:38:05 -07:00
Chris Robinson
2687155200 Get rid of more alIs* calls 2010-03-16 20:23:46 -07:00
Chris Robinson
f37cfc486d Pass the context to alSetError 2010-03-16 17:35:51 -07:00
Chris Robinson
ec917e8e2f Rename some struct members for consistency 2010-03-16 15:37:41 -07:00
Chris Robinson
d930fb8d3d Call the Update effect method for null effects 2009-11-28 20:09:41 -08:00
Chris Robinson
658923175f Update source parameters only when they need changing 2009-11-25 16:21:47 -08:00
Chris Robinson
c1b161b44b Handle NULL effect objects as AL_EFFECT_NULL effects 2009-11-05 20:50:56 -08:00
Chris Robinson
aa84b2e328 Handle setting AL_EFFECT_NULL effect types on a slot 2009-11-05 18:22:43 -08:00
Chris Robinson
f14cf8289e Add a method to update device-dependant effect parameters. 
The effect state's update method will be called afterwards
 2009-10-20 08:31:44 -07:00
Chris Robinson
6d1d61026d Be context-agnostic in the effect Create functions 
This allows the effect Update functions to handle the playback frequency being
changed. By default the effects assume a maximum frequency of 192khz, however,
it can go higher at the cost of the sample buffers being cleared and the risk
of an abort() if reallocation fails
 2009-10-19 07:46:53 -07:00
Chris Robinson
487f0dde75 Print source and auxiliary slot debug warnings from alcDestroyContext 2009-08-16 16:11:22 -07:00
Chris Robinson
c8f700930a More modifications and fixes for context checks 2009-08-16 16:02:13 -07:00
Chris Robinson
462f27c129 Use a function to retrieve the current context in an already-locked state 
This should help prevent race-conditions with a context being destroyed between
breing retrieved and locked
 2009-08-16 14:09:23 -07:00
Chris Robinson
0fac1e9115 Store the max number of auxiliary slots in the device 2009-06-07 14:53:22 -07:00
Chris Robinson
3c122b0bef Set an error if effect creation fails 2009-05-31 11:54:49 -07:00
Chris Robinson
2c20f26784 Apply slot gain on slot output, not input 2009-05-29 16:51:00 -07:00
Chris Robinson
74dc7090fd Don't expose effect-specific structures 2009-05-29 13:30:50 -07:00
Chris Robinson
34ea7eba9e Add preliminary support for the EAX Reverb effect 
Not all parameters are supported yet, though it is a little more fuctional than
standard reverb
 2009-05-29 01:32:54 -07:00
Chris Robinson
55c790c9ff Add the Echo effect 2009-04-12 16:01:10 -07:00
Chris Robinson
30f57d0824 Make auxiliary effect slot count configurable 2009-04-11 18:16:05 -07:00
Chris Robinson
1c54018111 Move the WetBuffer into the effect slot object 
This should make it easier to support multiple slots
 2009-04-11 17:04:55 -07:00
Chris Robinson
c0ccd31a3e Implement a new reverb effect 
Code created and graciously provided by Christopher Fitzgerald
 2008-11-16 00:29:49 -08:00
Chris Robinson
3863dcc9cb Use a new low-pass filter, based on the I3DL2 spec 
Many thanks to Christopher Fitzgerald, for helping with it
 2008-10-02 22:20:42 -07:00
Chris Robinson
5f3329b2c9 Don't export extension function symbols from the lib 2008-09-06 13:45:27 -07:00
Chris Robinson
597e01153e Use arrays instead of pointer-to-arrays for the low-pass filter 2008-07-26 17:13:50 -07:00
Chris Robinson
c7e49c9f57 Implement yet another low-pass filter 
This one using the Butterworth IIR filter design
 2008-07-25 19:31:12 -07:00
Chris Robinson
93c0f61050 Clarify implicit destruction warnings 2008-07-22 14:29:27 -07:00
Chris Robinson
847b3e8b61 Preserve data and position when reallocating the reverb effect 
Still not perfect, but better for when the size doesn't change
 2008-02-18 21:58:58 -08:00
Chris Robinson
b5a2baafe5 Remove effect slot thunk entry when deallocated forcefully 2008-01-21 15:34:38 -08:00
Chris Robinson
db80f682c9 Clean a couple debug messages 2008-01-19 21:41:09 -08:00
Chris Robinson
4caf2c7edd Implement AL_EFFECT_REVERB 
Here is a quick description of how the reverb effect works:

 +--->---+*(4)
 |       V       new sample
 +-----+---+---+    |
 |extra|ltr|ref| <- +*(1)
 +-----+---+---+
   (3,5)*|   |*(2)
         +-->|
             V
         out sample

 1) Apply master reverb gain to incoming sample and place it at the head of the
    buffer. The master reverb gainhf was already applied when the source was
    initially mixed.
 2) Copy the delayed reflection sample to an output sample and apply the
    reflection gain.
 3) Apply the late reverb gain to the late reverb sample
 4) Copy the end of the buffer, applying a decay gain and the decay hf ratio,
    and add to the late reverb.
 5) Copy the late reverb sample, adding to the output sample.

 Then the head and sampling points are shifted forward, and done again for each
 new sample. The extra buffer length is determined by the Reverb Density
 property. A value of 0 gives a length of 0.1 seconds (long, with fairly
 distinct echos) , and 1 gives 0.075 seconds (short, indistinct echos).
 The decay gain is calculated such that after a number of loops to satisfy the
 Decay Time, a sample will be 1/32768th as powerful (virtually insignificant to
 the resulting output, and only getting further reduced). It is calculated as:

 DecayGain = pow(1.0f/32768.0f, 1.0/(DecayTime/ExtraLength));

 Things to note: Reverb Diffusion is not currently handled, nor is Decay HF
 Limit. Decay HF Ratios above 1 probably give incorrect results. Also, this
 method likely sucks, but it's the best I can come up with before release. :)
 2008-01-18 21:25:40 -08:00
Chris Robinson
6735fc7911 Add missing config.h includes 2008-01-16 14:09:04 -08:00
Chris Robinson
70102e7cd3 Fix debug comments 2008-01-16 13:58:10 -08:00
Chris Robinson
bb7b18d4e1 Keep track of references to effect slots, so they aren't deleted while in use 2008-01-16 13:20:09 -08:00
Chris Robinson
a6213ebfc7 Fix allocation of multiple effect slots, effects, and filters 2008-01-15 16:24:12 -08:00
Chris Robinson
b95fcf5da1 Store effect slots in the context 2008-01-15 16:22:39 -08:00
Chris Robinson
5678041b92 Remove errant line 2008-01-15 15:53:58 -08:00
Chris Robinson
7f850d8fb0 Make sure a valid context is set for effect slots 2008-01-15 15:53:06 -08:00