Commit Graph

167 Commits

Author SHA1 Message Date
Chris Robinson 8d0c4ccb3b The room rolloff factor can go up to 10 2009-03-13 02:12:45 -07:00
Chris Robinson 7ebb28327f Remove the SDL backend 2009-03-10 01:03:39 -07:00
Chris Robinson 86931cbde4 Add a PortAudio backend 2009-03-10 00:55:29 -07:00
Chris Robinson 1f4c69c17a Use a matrix for up- and down-mixing channels 2009-01-25 22:11:07 -08:00
Chris Robinson 98e86decad 6.1 uses front- and back-center, not left- and right-back channels 2009-01-24 15:13:14 -08:00
Chris Robinson 778b74cae1 Reimplement panning using lookup tables, based on a patch by Christian Borss
This allows speaker positions to be specified by discrete angles around the
listener, providing more flexibility and configurability in placement.
Additional patches to take advantage of this are forthcoming.
2009-01-24 10:38:04 -08:00
Chris Robinson 3056f91ec5 Apply the dry filter to multi-channel sources
Unlike mono sources, they use 2 chained one-pole filters instead of 4
2008-12-10 11:54:13 -08:00
Chris Robinson 8b54d59b8c Add an SDL backend 2008-12-07 01:05:39 -08:00
Chris Robinson 55b9ccc2de Implement AL_EXTX_source_distance_model
As with other EXTX extensions, this is subject to change and removal as the
spec gets worked on
2008-11-25 18:56:10 -08:00
Chris Robinson 482b160c8a Remove unneeded macro 2008-11-16 01:07:39 -08:00
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 d72b132c57 Add an option to disable specific EFX effect types 2008-11-14 07:13:59 -08:00
Chris Robinson 010f7d12f4 Don't ramp gains when starting a sound from the beginning 2008-11-13 05:48:38 -08:00
Chris Robinson da684564ea Avoid unnecessary floating-point math 2008-11-11 17:59:55 -08:00
Chris Robinson fc4c867f27 Add initial AL_EXTX_buffer_sub_data support
Note that this is an in-development extension, as noted by the EXTX moniker
instead of EXT. It's behavior is subject to change, and the extension string
will be removed (replaced with the official string once it's finalized).
Developers are discouraged from using this in production code, though feel
free to play around with it.
2008-11-11 05:57:32 -08:00
Chris Robinson 15334e56cd Be more flexible with channel count when loading IMA4 data 2008-11-02 15:30:56 -08:00
Chris Robinson ffa42ff22c Seperate data converters into reusable functions 2008-11-02 01:24:57 -07:00
Chris Robinson a7c62dbabc More padding fixes 2008-11-01 16:37:32 -07:00
Chris Robinson eda1e41152 More buffer conversion refactoring 2008-11-01 16:35:16 -07:00
Chris Robinson af5a5b76ec Padding is not dependant on the frequency cutoff anymore 2008-10-31 23:32:28 -07:00
Chris Robinson 87f3a0dc16 Restructure buffer data conversion code a bit 2008-10-31 22:13:35 -07:00
Chris Robinson 301a4c4a95 Append the driver and its version to the AL version string 2008-10-25 15:48:17 -07:00
Chris Robinson 59a71b1454 Remove another unused source member 2008-10-10 01:31:31 -07:00
Chris Robinson bfa1107781 Remove unneeded source member variable 2008-10-09 23:44:48 -07:00
Chris Robinson 11397f7667 Commit missing changes 2008-10-09 20:58:12 -07:00
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 6567cdd7b5 Air absorption factor is applied to the dB value, not linear gain 2008-09-22 17:01:47 -07:00
Chris Robinson 6bfdb57a5b Use a 12dB/oct rolloff instead of 24 for the lowpass filter 2008-09-13 02:46:14 -07:00
Chris Robinson 16d96eed7b Add a Solaris playback backend 2008-09-07 14:34:14 -07:00
Chris Robinson 5f3329b2c9 Don't export extension function symbols from the lib 2008-09-06 13:45:27 -07:00
Chris Robinson db541f3cfa Remove unneeded source struct member 2008-08-15 17:43:07 -07:00
Chris Robinson 3e19ba6ca8 Clear channel volumes when starting a source 2008-08-15 16:33:47 -07:00
Chris Robinson 084df2a229 Allow setting the EFX doppler factor source property 2008-08-14 16:14:16 -07:00
Chris Robinson 22557070ec Ramp channel gains to remove pops and clicks from abrupt changes
Thanks to Christopher Fitzgerald for helping me work on it
2008-08-14 05:43:52 -07:00
Chris Robinson f8ef66954c Include fenv.h if it exists for fesetround 2008-08-08 08:12:41 -07:00
Chris Robinson 8621fbb015 Improve getting and setting EFX filter parameters 2008-07-26 18:32:45 -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 3e0f9cc716 Make the filter processing function inline 2008-07-26 00:58:54 -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 e2ed8ff2bf Use a temp pointer when realloc()ing
So the original data isn't lost on out-of-memory conditions
2008-07-24 13:44:26 -07:00
Chris Robinson 559c786d0c Specify padding per buffer, and make sure it's large enough for the filter step 2008-07-24 00:41:25 -07:00
Chris Robinson a75e75aef5 Implement an alternative low-pass filter
This method samples from the buffer so that it gets a time-correct 5khz stream,
which is subtracted from the original sample and has the high-frequency gain
applied, then added back.
A better method may be to average all the samples from the current one to the
one freq/5000 away, instead of bilinear filtering the two nearest freq/5000
apart. Processing cost will need to determine its viability
2008-07-23 22:29:53 -07:00
Chris Robinson 93c0f61050 Clarify implicit destruction warnings 2008-07-22 14:29:27 -07:00
Chris Robinson 87b5d7bc7b Store extension list with a pointer, not a per-context array 2008-07-22 12:39:10 -07:00
Chris Robinson e66bb09156 Move (de)initialization into ALc.c and remove unneeded file 2008-07-17 18:38:07 -07:00
Chris Robinson 0042b1f80d Implement doppler factor source property 2008-07-15 02:33:05 -07:00
Chris Robinson 97d3a45aff Don't check the number of objects being deleted with the number currently allocated
Since apps can validly delete buffer 0, and delete the same source/buffer multiple times in a single call
2008-07-11 09:12:11 -07:00
Chris Robinson cad9b367a5 Use pthread_mutexattr_setkind_np as a fallback to set a recursive mutex type
Some systems (FreeBSD) don't like setting it through pthread_mutexattr_settype
2008-05-15 21:35:51 -07:00
Chris Robinson 28093a6dcb constify the pointer that holds the filename 2008-03-22 19:05:00 -07:00
Chris Robinson 2af5498804 Define _WIN32_WINNT to 0x0500 when including windows.h
VC7 appears to require that value, or higher, set and fails otherwise
2008-03-01 01:39:42 -08:00