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bf97c5a2
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2021-09-08T14:47:40
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Make sure SDL file descriptors don't leak into child processes
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a5f3ea14
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2021-03-10T09:36:46
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netbsdaudio: Handle ioctls failing
A user reported that the mpv video player hangs after attempting to
set an unsupported number of channels with the SDL audio output,
because it thinks it's successfully opened the device. This makes
the failure graceful.
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50ea3b77
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2021-01-08T10:09:37
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Fixed bug 5080 - SDL_netbsdaudio: Always use the device's preferred frequency
Nia Alarie
The NetBSD kernel's audio resampling code is much simpler and lower quality than libsamplerate.
Presumably, if SDL always performs I/O on the audio device in its native frequency, we can avoid resampling audio in the kernel and let SDL do it with libsamplerate instead.
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9130f7c3
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2021-01-02T10:25:38
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Updated copyright for 2021
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9525f972
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2020-04-05T10:44:51
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Fixed bug 5076 - SDL_netbsdaudio: Add support for 32-bit LPCM
Nia Alarie
The kernel supports this, make SDL expose it so it can be used.
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a8780c6a
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2020-01-16T20:49:25
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Updated copyright date for 2020
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15bae953
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2019-06-08T13:03:36
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Fixed bug 4642 - Rework SDL_netbsdaudio to improve performance
Nia Alarie
The NetBSD audio driver has a few problems. Lots of obsolete code, and extremely bad performance and stuttering.
I have a patch in NetBSD's package system to improve it. This is my attempt to upstream it.
The changes include:
* Removing references to defines which are never used.
* Using the correct structures for playback and recording, previously they were the wrong way around.
* Using the correct types ('struct audio_prinfo' in contrast to 'audio_prinfo')
* Removing the use of non-blocking I/O, as suggested in #3177.
* Removing workarounds for driver bugs on systems that don't exist or use this driver any more.
* Removing all usage of SDL_Delay(1)
* Removing pointless use of AUDIO_INITINFO and tests that expect AUDIO_SETINFO to fail when it can't.
These changes bring its performance in line with the DSP audio driver.
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5e13087b
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2019-01-04T22:01:14
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Updated copyright for 2019
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e3cc5b2c
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2018-01-03T10:03:25
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Updated copyright for 2018
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fb835f9e
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2017-08-14T20:22:19
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Fixed bug 2330 - Debian bug report: SDL2 X11 driver buffer overflow with large X11 file descriptor
manuel.montezelo
Original bug report (note that it was against 2.0.0, it might have been fixed in between): http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=733015
--------------------------------------------------------
Package: libsdl2-2.0-0
Version: 2.0.0+dfsg1-3
Severity: normal
Tags: patch
I have occasional crashes here caused by the X11 backend of SDL2. It seems to
be caused by the X11_Pending function trying to add a high number (> 1024)
file descriptor to a fd_set before doing a select on it to avoid busy waiting
on X11 events. This causes a buffer overflow because the file descriptor is
larger (or equal) than the limit FD_SETSIZE.
Attached is a possible workaround patch.
Please also keep in mind that fd_set are also used in following files which
may have similar problems.
src/audio/bsd/SDL_bsdaudio.c
src/audio/paudio/SDL_paudio.c
src/audio/qsa/SDL_qsa_audio.c
src/audio/sun/SDL_sunaudio.c
src/joystick/linux/SDL_sysjoystick.c
--------------------------------------------------------
On Tuesday 24 December 2013 00:43:13 Sven Eckelmann wrote:
> I have occasional crashes here caused by the X11 backend of SDL2. It seems
> to be caused by the X11_Pending function trying to add a high number (>
> 1024) file descriptor to a fd_set before doing a select on it to avoid busy
> waiting on X11 events. This causes a buffer overflow because the file
> descriptor is larger (or equal) than the limit FD_SETSIZE.
I personally experienced this problem while hacking on the python bindings
package for SDL2 [1] (while doing make runtest). But it easier to reproduce in
a smaller, synthetic testcase.
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4c190ce5
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2017-07-01T23:00:07
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netbsd: Fixed comment.
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7bb6b402
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2017-06-29T23:00:09
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netbsd: Fixed compile error.
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a7fc2822
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2017-05-24T19:56:59
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audio: rename bsd target to netbsd.
Apparently this is no longer a generic BSD audio target, and hasn't been for
years, so rename it for NetBSD.
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