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66 commits

Author SHA1 Message Date
Andrew Kelley ee7c0d3e11 convert source code to pure C 
List<T> is now a really ugly macro.

Added a workaround for jack.h not putting `void` in function
prototypes for functions that take no arguments. I made upstream
pull requests to jack1 and jack2 but I don't have high hopes
about them getting merged.

I removed the lock-free atomic asserts. clang reports
non-lock-free atomics when in fact it does have lock-free
atomics. I inspected the generated code for gcc and clang
for fetch_add, load, and store, on x86_64 and armhf, and
it's all lock free.

Closes #45.
 2015-11-10 02:24:18 -07:00
Andrew Kelley 2f14aa569e ALSA: use period size to calculate buffer size 
determining the buffer size before the period size sometimes results
in EINVAL.

closes #33
 2015-10-13 00:47:18 -07:00
Andrew Kelley db0e3d136c fix double clean up corruption when opening stream fails 
affects ALSA, CoreAudio, JACK, WASAPI, and Dummy.
 2015-10-08 17:10:21 -07:00
Andrew Kelley a3c4f85489 ALSA: fix deadlock under some circumstances 
If the write_callback came upon an error during the prepare
phase, and never wrote any frames to the hardware buffer,
and another thread tried to soundio_outstream_destroy, this
would cause a deadlock.

This is now fixed.
 2015-10-06 18:50:56 -07:00
Andrew Kelley dbed33abd2 os: remove superfluous condition on init 
remove superfluous #include math.h
 2015-09-17 13:55:47 -07:00
Andrew Kelley 2a68f63079 ALSA: pause gives error when state is invalid 2015-09-11 20:33:40 -07:00
Andrew Kelley f0356597e2 ALSA: remove stray print statement 2015-09-08 15:05:44 -07:00
Andrew Kelley e2e483a4d5 no longer depend on or link against libm 2015-09-05 14:56:36 -07:00
Andrew Kelley f8cb816139 ALSA: remove duplicate assert 
Thanks to Devin Anderson for pointing it out.
 2015-09-04 11:11:14 -07:00
Andrew Kelley 918183adc6 ALSA: be ready for /dev/snd to not be available 
If this occurs, the system has no ALSA support in the kernel,
and it is appropriate for the backend to fail.

closes #6
 2015-09-03 15:40:36 -07:00
Andrew Kelley 85c2190675 build: fix build on linux with clang 
closes #8
 2015-09-03 14:05:19 -07:00
Andrew Kelley 1381cf21d3 ALSA: pass the latency test 
See #2
 2015-09-03 09:52:21 -07:00
Andrew Kelley e5cd076e2e dummy: pass the latency test 
See #2
 2015-09-02 13:31:50 -07:00
Andrew Kelley debab8e70f get latency skeleton 
See #2
 2015-09-02 12:22:03 -07:00
Andrew Kelley 06dc7704a3 ALSA: fix sometimes calling write_callback with 0 frame_count_max 2015-09-02 10:24:04 -07:00
Andrew Kelley c14d61fa32 WASAPI: better pause/unpause and clear buffer behavior 
See #3
 2015-09-01 16:31:56 -07:00
Andrew Kelley cd72f45f06 ALSA: fix clear buffer behavior 2015-09-01 15:06:33 -07:00
Andrew Kelley fe4a04d93c ALSA: better pause/unpause behavior 2015-09-01 14:43:50 -07:00
Andrew Kelley dd6b7003d9 ALSA: better handling of raw devices 
* Recover from xruns
 * Better period size choice
 2015-08-27 22:58:17 -07:00
Andrew Kelley 7a714298c1 add soundio_force_device_scan API 2015-08-27 21:45:22 -07:00
Andrew Kelley 2d8f8e7f31 ALSA: look for the control file rather than pcm files 2015-08-27 21:22:30 -07:00
Andrew Kelley 16437bd357 various code adjustments 
* doc clarifications
 * examples compile with c99 not c11
 * fix pulseaudio on_backend_disconnected not firing only during
   flush events
 * make wait events more efficient
 * fix alsa devices race condition
 * fix backend disconnected code handling
 * add overflow test
 * fix on_events_signal not called at correct times
 * refactor pulseaudio device scanning
 * fix SoundIoErrorNoSuchDevice string value
 2015-08-27 20:57:53 -07:00
Andrew Kelley c96405a091 rt prio warning behavior is overridable 2015-08-26 12:54:13 -07:00
Andrew Kelley 195ea59209 ALSA: fix playback on raw device 2015-08-26 12:31:09 -07:00
Andrew Kelley fbc7318268 remove the concept of period duration from the API 
also more progress on WASAPI
 2015-08-13 22:54:15 -07:00
Andrew Kelley 7238d29666 sample rate is exposed as a list of min/max pairs 2015-08-08 14:44:31 -07:00
Andrew Kelley c381526205 callbacks supply min and max frame count parameters 
This changes the semantics of the callbacks so that instead of
a single `requested_frame_count` or `available_frame_count`,
the callbacks get a minimum frame count and maximum frame count.

The callback must write at least the minimum or get an underflow.
The minimum will be 0 on ALSA, PulseAudio, and Dummy, and will
equal the maximum on CoreAudio and JACK.

This ensures optimal behavior regardless of buffer size.
 2015-08-04 21:57:46 -07:00
Andrew Kelley 29a914ceba no constructors or destructors 2015-08-04 11:03:19 -07:00
Andrew Kelley f87961275d write and read functions no longer allow setting frame count 
CoreAudio and JACK both have this limitation
 2015-08-04 00:56:03 -07:00
Andrew Kelley c52e76928f fix build on linux 2015-08-01 22:40:55 -07:00
Andrew Kelley f77663399f CoreAudio: obtain most device information 2015-08-01 22:10:43 -07:00
Andrew Kelley e6112b40ed rename purpose to aim 2015-07-30 10:39:10 -07:00
Andrew Kelley 4ba1fd91a1 rename device name and description to id and name 2015-07-30 10:26:36 -07:00
Andrew Kelley 12db5fd970 remove all calls to soundio_panic 
Return codes are the way errors are communicated, not
crashing the entire program.
 2015-07-30 00:46:13 -07:00
Andrew Kelley 5503072fc8 ALSA: recover from underflow gracefully 2015-07-29 22:39:27 -07:00
Andrew Kelley 44569708a0 Delete the concept of prebuffering 2015-07-29 20:55:28 -07:00
Andrew Kelley a5e1c0024d ALSA: detect 'default' (no colon) as default device 2015-07-29 01:15:01 -07:00
Andrew Kelley 754343bba6 microphone example works with JACK 2015-07-28 18:47:28 -07:00
Andrew Kelley 6df84096f3 sine example works with JACK 2015-07-28 11:28:07 -07:00
Andrew Kelley 70decb39f5 SoundIoOutStream, SoundIoInStream: void * -> union 
For better cache locality and lower mlock requirements.
 2015-07-27 17:06:12 -07:00
Andrew Kelley db1195877a SoundIo, SoundIoDevice: unions instead of void * 
for better cache locality
 2015-07-27 16:37:45 -07:00
Andrew Kelley 3dd9e513bc add JACK backend skeleton 2015-07-24 18:43:14 -07:00
Andrew Kelley 5906bc93d9 ALSA implement clear buffer 2015-07-24 14:03:49 -07:00
Andrew Kelley efa7b7cbc0 ALSA input stream: add missing clean up 2015-07-23 21:07:51 -07:00
Andrew Kelley 34039b4858 microphone example working with ALSA 2015-07-23 20:55:36 -07:00
Andrew Kelley 511fcafc3b dummy: implement prebuffering 2015-07-23 16:49:44 -07:00
Andrew Kelley 69764e1afa microphone example working with dummy backend 2015-07-23 15:04:41 -07:00
Andrew Kelley e7dc300cc6 microphone example working with PulseAudio 2015-07-22 15:43:45 -07:00
Andrew Kelley a3388e792a default device index is -1 if no devices available 2015-07-22 12:07:20 -07:00
Andrew Kelley db06391646 ALSA: support non mmap device access 2015-07-22 00:04:17 -07:00