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8a4a282a
|
2021-10-30T16:02:12
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alsa: Make hotplug thread optional.
Even without the thread, it'll do an initial hardware detection at startup,
but there won't be any further hotplug events after that. But for many cases,
that is likely complete sufficient.
In either case, this cleaned up the code to no longer need a semaphore at
startup.
Fixes #4862.
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ce11caa8
|
2021-09-21T16:41:29
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alsa: Map 7.1 audio channels to match what Windows and macOS expect.
This matches what we did a long time ago for 5.1 audio.
Fixes #55.
(FIFTY FIVE. Bug reported 15 years, 3 months, and 11 days ago! lol)
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c45facf2
|
2021-09-21T11:13:46
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alsa: clean up macro salsa a little.
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67e8522d
|
2021-02-27T17:37:25
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Add SDL_GetAudioDeviceSpec.
This API is supported by pipewire, pulseaudio, coreaudio, wasapi, and disk.
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9130f7c3
|
2021-01-02T10:25:38
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Updated copyright for 2021
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cb361896
|
2020-12-09T07:16:22
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Fixed bug 5235 - All internal sources should include SDL_assert.h
Ryan C. Gordon
We should really stick this in SDL_internal.h or something so it's always available.
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a8780c6a
|
2020-01-16T20:49:25
|
|
Updated copyright date for 2020
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60d3965e
|
2019-10-30T15:36:17
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Readability: remove redundant return, continue, enum declaration
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b458d7a2
|
2019-10-30T15:13:55
|
|
Readability: remove redundant cast to the same type
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680e7937
|
2019-07-07T09:10:56
|
|
Fixed bug 4710 - audio/alsa: avoid configuring hardware parameters with only a single period
Anthony Pesch
The previous code first configured the period size using snd_pcm_hw_par-
ams_set_period_size_near. Then, it further narrowed the configuration
space by calling snd_pcm_hw_params_set_buffer_size_near using a buffer
size of 2 times the _requested_ period size in order to try and get a
configuration with only 2 periods. If the configured period size was
larger than the requested size, the second call could inadvertently
narrow the configuration space to contain only a single period.
Rather than fixing the call to snd_pcm_hw_params_set_buffer_size_near
to use a size of 2 times the configured period size, the code has been
changed to use snd_pcm_hw_params_set_periods_min in order to more
clearly explain the intent.
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35255342
|
2019-03-16T18:48:21
|
|
Fixed bug 4525 - Fix crash in ALSA_HotplugThread caused by bad return value check
Anthony Pesch
Fix snd_device_name_hint return value check
According to the ALSA documentation, snd_device_name_hint returns 0 on
success, otherwise a negative error code. The code previously only
considered -1 to be an error, which let other error codes through
resulting in a segfault when hints (which was NULL) was dereferenced
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5e13087b
|
2019-01-04T22:01:14
|
|
Updated copyright for 2019
|
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5febdfce
|
2018-09-24T11:49:25
|
|
Fixed whitespace
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623a6def
|
2018-08-07T16:49:18
|
|
alsa: optionally run entire pipeline non-blocking.
|
|
c5914295
|
2018-05-04T21:21:32
|
|
alsa: avoid hardware parameters with an excessive number of periods.
The previous code attempted to use set_buffer_size / set_period_size
discretely, favoring the parameters which generated a buffer size that was
exactly 2x the requested buffer size. This solution ultimately prioritizes
only the buffer size, which comes at a large performance cost on some machines
where this results in an excessive number of periods. In my case, for a 4096
sample buffer, this configured the device to use 37 periods with a period size
of 221 samples and a buffer size of 8192 samples. With 37 periods, the SDL
Audio thread was consuming 25% of the CPU.
This code has been refactored to use set_period_size and set_buffer_size
together. set_period_size is called first to attempt to set the period to
exactly match the requested buffer size, and set_buffer_size is called second
to further refine the parameters to attempt to use only 2 periods. The
fundamental change here is that the period size / count won't go to extreme
values if the buffer size can't be exactly matched, the buffer size should
instead just increase to the next closest multiple of the target period size
that is supported. After changing this, for a 4096 sample buffer, the device
is configured to use 3 periods with a period size of 4096 samples and a buffer
size of 12288 samples. With only 3 periods, the SDL Audio thread doesn't even
show up when profiling.
Fixes Bugzilla #4156.
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e3cc5b2c
|
2018-01-03T10:03:25
|
|
Updated copyright for 2018
|
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|
93583d46
|
2017-09-09T21:17:46
|
|
alsa: removed snd_pcm_wait() call before writing to playback device.
This would cause playback problems in certain situations, such as on the
Raspberry Pi. The device that the wait was added for seems to not benefit from
it in modern times, and standard desktop Linux seems to do the right thing
when a USB device is unplugged now, without this patch.
Fixes Bugzilla #3599.
|
|
3639895e
|
2017-05-27T23:30:07
|
|
Removed unused errno includes.
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6814f5db
|
2017-03-14T07:20:14
|
|
ALSA driver improvements:
* alsa hotplug thread is low priority
* give a chance for other threads to catch up when audio playback is not progressing
* use nonblocking for alsa audio capture
There is a bug with SDL hanging when an audio capture USB device is removed, because poll never returns
|
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|
45b774e3
|
2017-01-01T18:33:28
|
|
Updated copyright for 2017
|
|
|
36156335
|
2016-11-20T21:34:54
|
|
Renaming of guard header names to quiet -Wreserved-id-macro
Patch contributed by Sylvain
|
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7ad3a46d
|
2016-11-05T21:23:17
|
|
ALSA: Fixed compile warning about unused function.
Found by buildbot.
|
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|
88f2d16e
|
2016-10-28T17:00:37
|
|
Fixed compiling on older versions of ALSA
|
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|
fdcac1c2
|
2016-10-28T16:47:06
|
|
Fixed audio data swizzling when the device channel map already matches what SDL expects
|
|
|
62310c6b
|
2016-10-12T22:25:19
|
|
Work-around for a hang when USB devices are unplugged, contributed by James Zipperer
|
|
|
fed9b604
|
2016-10-10T23:26:26
|
|
Use SDL C runtime strlen()
|
|
|
ca42373f
|
2016-10-10T15:29:18
|
|
alsa: more tapdancing to enumerate physical hardware devices.
Apparently some systems see "hw:", some see "default:" and some see
"sysdefault:" (and maybe others!). My workstation sees both "hw:" and
"sysdefault:" ...
Try to find a prefix we like and prioritize the prefixes we (think) we want
most. If everything else fails, if there's a "default" (not a prefix) device
name, list that by itself so the user gets _something_ here.
If we can't find a prefix we like _and_ there's no "default" device, report
no hardware found at all.
|
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|
52ae92ea
|
2016-10-07T19:08:22
|
|
ALSA_snd_pcm_drop() can hang on some systems (Steam Link) so don't use that when shutting down the ALSA audio driver.
|
|
|
3b0c7936
|
2016-10-07T11:18:55
|
|
Some systems include both "default:" and "hw:" for the same usb device
|
|
|
8e199461
|
2016-10-06T06:08:16
|
|
fix for finding ALSA hotplug devices on Steam Link
James Zipperer
The device names show up as "default:", not "hw:"
|
|
|
69cf1703
|
2016-10-04T06:46:46
|
|
fix deadlock on close device
James Zipperer
snd_pcm_drain doesn't always drain when you unplug a usb device. Use snd_pcm_drop instead
|
|
|
2da1ec83
|
2016-08-28T13:36:13
|
|
Merge audio capture work back into the mainline.
|
|
|
06dcdc7d
|
2016-08-28T11:56:11
|
|
Patched to compile.
|
|
|
850da32f
|
2016-08-28T08:50:26
|
|
alsa: Implemented hotplug support, cleaned up device names.
|
|
|
cfa95fe6
|
2016-08-15T10:09:41
|
|
alsa: don't enumerate virtual devices, just physical hardware.
|
|
|
761a7978
|
2016-08-05T01:59:06
|
|
audio: changed some SDL_memset() calls to SDL_zero(), other minor corrections.
|
|
|
9b647727
|
2016-08-05T01:44:41
|
|
audio: Clean up some CloseDevice() interface details.
- It's now always called if device->hidden isn't NULL, even if OpenDevice()
failed halfway through. This lets implementation code not have to clean up
itself on every possible failure point; just return an error and SDL will
handle it for you.
- Implementations can assume this->hidden != NULL and not check for it.
- implementations don't have to set this->hidden = NULL when done, because
the caller is always about to free(this).
- Don't reset other fields that are in a block of memory about to be free()'d.
- Implementations all now free things like internal mix buffers last, after
closing devices and such, to guarantee they definitely aren't in use anymore
at the point of deallocation.
|
|
|
979de761
|
2016-08-05T01:44:15
|
|
audio: Removed internal SDL_audiomem.h and macros.
I think this was important for SDL 1.2 because some targets needed
special device memory for DMA buffers or locked memory buffers for use in
hardware interrupts or something, but since it just defines to SDL_malloc
and SDL_free now, I took it out for clarity's sake.
|
|
|
38f4b68c
|
2016-08-03T01:00:30
|
|
alsa: capture devices don't need a mixbuf allocated.
|
|
|
41e8f9ed
|
2016-08-02T15:06:40
|
|
alsa: Implemented audio capture support!
|
|
|
754efd43
|
2016-08-02T15:06:05
|
|
alsa: Cleaned up the 5.1 swizzle mess a little.
Shouldn't this be something ALSA handles for us with channel maps, so we can
just delete this code?
|
|
|
6d5c9c1e
|
2016-08-02T13:48:52
|
|
audio: Made some SDL_AudioDevice fields atomic.
This makes sure they're properly communicated to the audio threads.
|
|
|
427472fe
|
2016-07-19T21:02:44
|
|
ALSA: Fixed adding wrong status to error message (thanks, romain145!).
Fixes Bugzilla #3364.
|
|
|
a581346f
|
2016-04-04T22:49:13
|
|
alsa: Make device enumeration robust against weird results with NULL strings.
|
|
|
1e8df9cd
|
2016-03-05T23:25:23
|
|
alsa: Implemented basic device detection.
This is kind of nasty, because ALSA reports dozens of "devices" that aren't
really things you'd ever want, or things that should be listed this way, but
the default path still works as before, and it at least allows these devices
to be available to apps.
This does not handle hotplugging yet. You get a device list at init time
and that's it.
|
|
|
42065e78
|
2016-01-02T10:10:34
|
|
Updated copyright to 2016
|
|
|
0e45984f
|
2015-06-21T17:33:46
|
|
Fixed crash if initialization of EGL failed but was tried again later.
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly
uninitialized data structure if loading the library first failed. A later try to
use EGL then skipped initialization and assumed it was previously successful
because the data structure now already existed. This led to at least one crash
in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was
dereferenced to make a call to eglBindAPI().
|
|
|
2c4a6ea0
|
2015-05-26T06:27:46
|
|
Updated the copyright year to 2015
|
|
|
b72938c8
|
2015-04-20T12:22:44
|
|
Windows: Always set the system timer resolution to 1ms by default.
An existing hint lets apps that don't need the timer resolution changed avoid
this, to save battery, etc, but this fixes several problems in timing, audio
callbacks not firing fast enough, etc.
Fixes Bugzilla #2944.
|
|
fe6c797c
|
2015-04-10T23:30:31
|
|
Fixed an iOS view orientation issue when SDL_GL_CreateContext or SDL_CreateRenderer is called.
|
|
|
f9cfd9fa
|
2015-03-18T02:01:17
|
|
Bunch of reworking to how we manage audio devices.
Device enumeration now happens at startup and then is managed exclusively
through hotplugging instead of full redetection. The device name list now has
a unique "handle" associated with each item and SDL will pass this to the
backend so they don't have to figure out how a human readable name maps to
real hardware for a second time.
Other cleanups, fixes, improvements, plus all the audio backends updated to
the new interface...largely untested at this point, though.
|
|
|
0e02ce08
|
2015-03-16T02:11:39
|
|
Initial work on audio device hotplug support.
This fills in the core pieces and fully implements it for Mac OS X.
Most other platforms, at the moment, will report a disconnected device if
it fails to write audio, but don't notice if the system's device list changed
at all.
|
|
b88ca1b4
|
2015-02-10T16:28:56
|
|
the last parameter of XChangeProperty is the number of elements.. and when the element format is 32.. the element is "long" so we have 5 long elements here.
Yes this seems confusing as on mac+linux Long is either 32 or 64bits depending on the architecture, but this is how the X11 protocol is defined. Thus 5 is the correct value for the nelts here. Not 5 or 10 depending on the architecture.
More info on the confusion https://bugs.freedesktop.org/show_bug.cgi?id=16802
|
|
|
b48e54aa
|
2015-01-26T22:00:29
|
|
Fixed bug 2802 - [patch] Fix android build compiling in wrong filesystem implementation
Jonas Kulla
The configure script didn't differentiate between Linux and Android, unconditionally compiling in the unix implementation of SDL_sysfilesystem.c.
I'm probably one of the very few people building SDL for android using classic configure + standalone toolchain, so this has gone undetected all along.
|
|
70438be2
|
2014-12-03T10:55:23
|
|
WinRT: fixed bug whereby SDL would override an app's default orientation
WinRT apps can set a default, preferred orientation via a .appxmanifest file.
SDL was overriding this on app startup, and making the app use all possible
orientations (landscape and portrait).
Thanks to Eric Wing for the heads up on this!
|
|
|
9c398852
|
2014-11-22T22:20:40
|
|
Corrected header file documentation comment.
|
|
24c86b55
|
2014-09-11T19:24:42
|
|
[X11] Reconcile logical keyboard state with physical state on FocusIn
since the window system doesn't do it for us like other platforms.
This prevents sticky keys and missed keys when going in and out
of focus, for example Alt would appear to stick if switching away
from an SDL app with Alt-Tab and had to be pressed again.
CR: Sam
|
|
|
3dcb451f
|
2014-04-09T21:29:19
|
|
Added a README file regarding WinRT support
To note, this file is currently formatted with CRLF line endings, rather than
LF, to allow the file to be viewed with Notepad.
|
|
|
58edac3e
|
2014-02-02T00:53:27
|
|
Fixed bug 2374 - Update copyright for 2014...
Is it that time already??
|
|
f848adff
|
2013-11-29T10:06:08
|
|
Improve Android pause/resume behavior.
|
|
|
7e1289af
|
2013-11-24T23:56:17
|
|
Make internal SDL sources include SDL_internal.h instead of SDL_config.h
The new header will include SDL_config.h, but allows for other global stuff.
|
|
|
08fa8da7
|
2013-10-20T21:56:15
|
|
Fixed bug 2129 - fix for bug 2121 breaks linking for mingw and throws multiple warnings
Andreas Ertelt
The problem in question is caused by changeset 7771 (http://hg.libsdl.org/SDL/rev/5486e579872e / https://bugzilla.libsdl.org/show_bug.cgi?id=2121)
The redefinition of __inline__ (introduced by the addition of begin_code.h:128's "|| __STRICT_ANSI__") results in mingw's gcc throwing multiple
warning: always_inline function might not be inlinable [-Wattributes]
as well as a whole bunch of redefinitions of mingw internals which break linking of projects including the SDL2 headers.
|
|
|
f79fc33a
|
2013-08-29T08:29:21
|
|
Christoph Mallon: Remove pointless if (x) before SDL_free(x)
|
|
|
1e49b1ed
|
2013-08-21T09:47:10
|
|
OCD fixes: Adds a space after /* (glory to regular expressions!)
|
|
|
695344d1
|
2013-08-21T09:43:09
|
|
OCD fixes: Adds a space before */
|
|
|
dad42067
|
2013-08-12T11:13:50
|
|
Fixes #2022, do not resume on Android when surfaceChanged
If the app is in landscape mode and the user presses the power button, a pause
is followed immediately by a surfaceChanged event because the lock screen
is shown in portrait mode. This triggers a "false" resume.
So, we just pause and resume following the onWindowFocusChanged events.
Also, wait for SDL_APP_WILLENTERBACKGROUND and SDL_APP_DIDENTERBACKGROUND before
blocking the event pump.
|
|
|
1ad936eb
|
2013-08-11T19:56:43
|
|
Fixed bug 2027 - Full-screen appears to be broken - hang in SDL_DestroyWindow()
Rainer Deyke
I'm running Linux Mint 15 with the Cinnamon window manager. SDL_DestroyWindow consistently locks up for me when the window if fullscreen.
|