kmx git

Commit	Date	Message
5be8a221	2021-11-17T20:37:51	Add audio conversion from/to 61
b649314d	2021-11-15T13:43:40	Add comment to audio clipping (see bug #4104)
5c067906	2021-11-15T00:55:04	wasapi: AvSetMmThreadCharacteristicsW takes an LPCWSTR param, not LPWSTR
be7b663c	2021-11-14T02:30:56	audio/winmm/SDL_winmm.c (SetMMerror): constify.
c8061ed2	2021-11-13T10:33:37	alsa: Fix possible uninitialized string
704edf63	2021-11-12T17:07:22	audio: Fix crash calling SDL_OpenAudio() after SDL_AudioInit() fails The SDL_WasInit() checks don't work when using SDL_AudioInit() directly, which is exactly what audio_initOpenCloseQuitAudio() in testautomation does.
78013aee	2021-11-12T16:57:24	alsa: Fix use-after-free when reinitializing
c2dd50a9	2021-11-12T08:28:02	Fixed whitespace
3bf7994f	2021-09-27T14:38:12	Add and use `SDL_FALLTHROUGH` for fallthroughs Case fallthrough warnings can be suppressed using the __fallthrough__ compiler attribute. Unfortunately, not all compilers have this attribute, or even have __has_attribute to check if they have the __fallthrough__ attribute. [[fallthrough]] is also available in C++17 and the next C2x, but not everyone uses C++17 or C2x. So define the SDL_FALLTHROUGH macro to deal with those problems - if we are using C++17 or C2x, it expands to [[fallthrough]]; else if the compiler has __has_attribute and has the __fallthrough__ attribute, then it expands to __attribute__((__fallthrough__)); else it expands to an empty statement, with a /* fallthrough / comment (it's a do {} while (0) statement, because users of this macro need to use a semicolon, because [[fallthrough]] and __attribute__((__fallthrough__)) require a semicolon). Clang before Clang 10 and GCC before GCC 7 have problems with using __attribute__ as a sole statement and warn about a "declaration not declaring anything", so fall back to using the / fallthrough / comment if we are using those older compiler versions. Applications using SDL are also free to use this macro (because it is defined in begin_code.h). All existing / fallthrough */ comments have been replaced with this macro. Some of them were unnecessary because they were the last case in a switch; using SDL_FALLTHROUGH in those cases would result in a compile error on compilers that support __fallthrough__, for having a __attribute__((__fallthrough__)) statement that didn't immediately precede a case label.
abc12a83	2021-11-11T15:58:44	Revert "Add and use `SDL_FALLTHROUGH` for fallthroughs" This reverts commit 66a08aa3914a98667f212e79b4f0b9453203d656. This causes problems with older compilers: https://github.com/libsdl-org/SDL/pull/4791#issuecomment-966630997
66a08aa3	2021-09-27T14:38:12	Add and use `SDL_FALLTHROUGH` for fallthroughs Case fallthrough warnings can be suppressed using the __fallthrough__ compiler attribute. Unfortunately, not all compilers have this attribute, or even have __has_attribute to check if they have the __fallthrough__ attribute. [[fallthrough]] is also available in C++17 and the next C2x, but not everyone uses C++17 or C2x. So define the SDL_FALLTHROUGH macro to deal with those problems - if we are using C++17 or C2x, it expands to [[fallthrough]]; else if the compiler has __has_attribute and has the __fallthrough__ attribute, then it expands to __attribute__((__fallthrough__)); else it expands to an empty statement, with a /* fallthrough / comment (it's a do {} while (0) statement, because users of this macro need to use a semicolon, because [[fallthrough]] and __attribute__((__fallthrough__)) require a semicolon). Applications using SDL are also free to use this macro (because it is defined in begin_code.h). All existing / fallthrough */ comments have been replaced with this macro. Some of them were unnecessary because they were the last case in a switch; using SDL_FALLTHROUGH in those cases would result in a compile error on compilers that support __fallthrough__, for having a __attribute__((__fallthrough__)) statement that didn't immediately precede a case label.
6d5edfa7	2021-11-02T15:59:26	Fixed crash on Android 8, due to bugs in AAudio implementation
c97c4687	2021-10-30T15:56:54	core: Convert SDL_IOReady()'s 2nd parameter to flags
8a4a282a	2021-10-30T16:02:12	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.
072e3fdf	2021-10-14T23:17:08	Fixed bug #4534: NEON implementation of Convert51ToStereo (Thanks Ryan!)
2423c514	2021-10-13T09:33:51	Work around hang in AAudioStream_write() during extended shared object loading while running in a debugger. Observed on a OnePlus 8T (KB2005) running Oxygen OS 11.0.10.10.KB05AA. The observed behavior is that any nonzero timeout value would hang until the device was paused and resumed. And a zero timeout value would always return 0 frames written even when audio fragments could be heard. Making a manual timeout system unworkable. None of the straightforward systems imply that there's a detectable problem before the call to AAudioStream_write(). And the callback set within AAudioStreamBuilder_setErrorCallback() does not get called as we enter the hang state. I've found that AAudioStream_getTimestamp() will report an error state from another thread. So this change codifies that behavior a bit until a better fix or more root cause can be found.
e92a639b	2021-10-04T23:00:28	replaced many uses of libc calls with SDL_ counterparts in os2 sources. TODO: core/os2 and geniconv sources _must_ be updated, as well..
345c161f	2021-09-22T09:06:45	Fixed some accidental uses of external C runtime functions
ce11caa8	2021-09-21T16:41:29	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)
c45facf2	2021-09-21T11:13:46	alsa: clean up macro salsa a little.
bf97c5a2	2021-09-08T14:47:40	Make sure SDL file descriptors don't leak into child processes
a1ffeda0	2021-08-28T22:52:13	Add SDL_HINT_APP_NAME and DBUS inhibition hint See SDL bug #4703. This implements two new hints: - SDL_APP_NAME - SDL_SCREENSAVER_INHIBIT_ACTIVITY_NAME The former is the successor to SDL_HINT_AUDIO_DEVICE_APP_NAME, and acts as a generic "application name" used both by audio drivers and DBUS screensaver inhibition. If SDL_AUDIO_DEVICE_APP_NAME is set, it will still take priority over SDL_APP_NAME. The second allows the "activity name" used by org.freedesktop.ScreenSavver's Inhibit method, which are often shown in the UI as the reason the screensaver (and/or suspend/other power-managment features) are disabled.
7d90df0e	2021-08-29T15:24:23	Restore previous behavior of empty SDL_AUDIODRIVER trying all drivers. The recent change to make SDL_AUDIODRIVER support comma-separated lists broke the previous behavior where an SDL_AUDIODRIVER that was empty behaved the same as if it was not set at all. This old behavior was necessary to paper over differences in platforms where SDL_setenv may or may not actually delete the env var if an empty string is specified. This patch just adds a simple check to ensure SDL_AUDIODRIVER is not empty before using it, restoring the old interpretation of the empty var.
3261f7f6	2021-08-26T16:15:30	audio: Support "pulse" as an alias for "pulseaudio" Originally, SDL 1.2 used "pulse" as the name for its PulseAudio driver. While it now supports "pulseaudio" as well for compatibility with SDL 2.0 [1], there are still scripts and distro packages which set SDL_AUDIODRIVER=pulse [2]. While it's possible to remove this in most circumstances or replace it with "pulseaudio" or a comma-separated list, this may still conflict if the environment variable is set globally and old binary builds of SDL 1.2 (e.g. packaged with older games) are being used. To fix this on SDL 2.0, add a hardcoded check for "pulse" as an audio driver name, and replace it with "pulseaudio". This mimics what SDL 1.2 does (but in reverse). Note that setting driver_attempt{,_len} is safe here as they're reset correctly based on driver_attempt_end on the next loop. [1] https://github.com/libsdl-org/SDL-1.2/commit/d9514097846381cd30fe08df65dbdd48de92a058 [2] https://bugzilla.opensuse.org/show_bug.cgi?id=1189778
9504bb12	2021-08-23T00:47:25	pulseaudio: Fix some function signatures that expect const pointers. This might have changed at some point in the Pulse API, or this might have always been wrong, but we didn't notice because the dynamic loading code hides it by casting things to void *. The static path, where it assigns the function pointer directly, puts out a clear compiler warning, though.
70c23b25	2021-08-18T13:18:11	audio: pipewire: Reset hotplug atomic variables on deinit.
bfa15931	2021-08-18T12:04:38	audio: pipewire: Set PW_KEY_NODE_RATE to suggest a rate. This can be used by recent pipewire to avoid resampling.
07a2d71e	2021-03-30T11:56:38	emscripten: Feed silence to device when paused
1e921352	2021-08-13T07:58:48	Improve portability of SDL_Convert51ToStereo_AVX Don't rely on checking __clang_major__ since it is not comparable between different vendors. Don't use "#pragma clang attribute" since it is only available in relatively recent versions, there's no obvious way to check if it's supported, and just using __attribute__ directly (for gcc as well) results in simpler code anyway.
ed6eb07e	2021-08-12T01:40:50	SDL_wasapi.c: fixed build against older SDKs.
44a76710	2021-08-11T12:55:50	Don't disable clang avx instrinsics on win32 if __AVX__ is defined. C.f.: https://github.com/libsdl-org/SDL/issues/4533
ac32c522	2021-08-10T18:11:09	Try using the built-in WASAPI audio rate conversion Fixes https://github.com/libsdl-org/SDL/issues/4608
a0af7ce7	2021-08-10T15:05:49	OSS is no longer the preferred audio backend on modern UNIX systems Fixes https://github.com/libsdl-org/SDL/issues/4207
25f9ed87	2021-08-10T13:10:36	audio: Fix false positives in driver name comparison Without this change, driver names don't get matched correctly; for example "a" can get matched with "alsa" since it only checks whether the string matches up to the length of the requested driver name.
bec78357	2021-08-06T14:20:55	Better fix for compiling using clang on Windows This fixes https://github.com/libsdl-org/SDL/issues/4533
cae7bd9b	2021-08-06T12:01:24	Don't use AVX with clang if the compiler isn't building with AVX instructions Fixes https://github.com/libsdl-org/SDL/issues/4533
659e1f0a	2021-07-29T17:49:52	audiocvt: The to-5.1 converters now soften FL and FR channels more. This is experimental and might be tweaked further. Reference #4104. Also reference: https://github.com/Keriew/augustus/issues/194#issuecomment-847655049
8f38ba4d	2021-07-29T18:02:47	Fix casts that should be using uintptr_t This is needed to support CHERI, and thus Arm's experimental Morello prototype, where pointers are implemented using unforgeable capabilities that include bounds and permissions metadata to provide fine-grained spatial and referential memory safety, as well as revocation by sweeping memory to provide heap temporal memory safety. On most systems (anything with a flat memory hierarchy rather than using segment-based addressing), size_t and uintptr_t are the same type. However, on CHERI, size_t is just an integer offset, whereas uintptr_t is still a capability as described above. Casting a pointer to size_t will strip the metadata and validity tag, and casting from size_t to a pointer will result in a null-derived capability whose validity tag is not set, and thus cannot be dereferenced without faulting. The audio and cursor casts were harmless as they intend to stuff an integer into a pointer, but using uintptr_t is the idiomatic way to do that and silences our compiler warnings (which our build tool makes fatal by default as they often indicate real problems). The iconv and egl casts were true positives as SDL_iconv_t and iconv_t are pointer types, as is NativeDisplayType on most OSes, so this would have trapped at run time when using the round-tripped pointers. The gles2 casts were also harmless; the OpenGL API defines this argument to be a pointer type (and uses the argument name "pointer"), but it in fact represents an integer offset, so like audio and cursor the additional idiomatic cast is needed to silence the warning.
53987e9b	2021-07-28T21:03:42	Optimized SDL_Convert51ToStereo_AVX
cf85710c	2021-07-28T22:55:10	SDL_audiocvt.c: disable AVX for clang < 5 and gcc < 4.9 See: https://github.com/libsdl-org/SDL/issues/4533
c72aef26	2021-05-01T23:56:23	Fixed microphone randomly stop working WASAPI_WaitDevice is used for audio playback and capture, but needs to behave slighty different. For playback `GetCurrentPadding` returns the padding which is already queued, so WaitDevice should return when buffer length falls below the buffer threshold (`maxpadding`). For capture `GetCurrentPadding` returns the available data which can be read, so WaitDevice can return as soon as any data is available. In the old implementation WaitDevice could suddenly hang. This is because on many capture devices the buffer (`padding`) wasn't filled fast enough to surpass `maxpadding`. But if at one point (due to unlucky timing) more than maxpadding frames were available, WaitDevice would not return anymore. Issue #3234 is probably related to this.
4ef8674d	2021-07-27T14:18:44	Revert "wasapi: Open capture devices the way we used to." This reverts commit 0d0fee7569803ddc41985bfc249418b02dd8cd97.
0d0fee75	2021-07-27T14:12:18	wasapi: Open capture devices the way we used to. This should work around the regression in #3234, since it basically reverts the problem change, but only for capture devices. Fixes #3234.
736a424f	2021-07-27T13:12:57	pulseaudio: Optionally add "monitor" sources to device list. There's a new hint to enable this. Fixes #2917.
8d790b10	2021-07-27T12:23:46	audiocvt: stereo-to-mono SSE3 now uses unaligned accesses. On modern CPUs, there's no penalty for using the unaligned instruction on aligned memory, but now it can vectorize unaligned data too, which even if it's not optimal, is still going to be faster than the scalar fallback. Fixes #4532.
45de0a1d	2021-04-02T06:28:10	Support comma-separated lists in SDL_AUDIODRIVER
b2c8d3e9	2021-06-11T22:14:54	audiocvt: 5.1 to Stereo conversion utilizing AVX
638befc1	2021-06-10T17:22:39	audiocvt: 5.1 to Stereo conversion utilizing SSE
db56526f	2021-06-10T13:07:27	audiocvt: Replace divisions Division is expensive and the compiler can not replace it themselves. Though we now we will be ok in terms of floating point edge behaviour.
86ee383f	2021-05-25T09:59:45	Removed duplicate SDL_AtomicGet()
db146e66	2021-05-25T10:34:04	Fixed warnings building with Visual Studio
58884e4c	2021-05-04T00:23:40	SDL_audiocvt.c: fixed MSVC double->float conversion warnings.
8ac0fb52	2021-04-29T09:29:02	OpenSLES: CloseDevice() is called at higher level, if OpenDevice() fails - explicit initialization of static variables
fcbf19b7	2021-04-28T21:04:47	AAudio: make sure stream is not null to prevent crash in RequestStop (see #3710)
f8695185	2021-04-27T11:07:51	Audio: normalize conversion Stereo to 5.1, Quad to 7.1, 5.1 to 7.1 (bug #4104)
21349901	2021-04-27T10:57:48	Audio: convert 5.1 to 7.1, use right-surround for r-front and r-back (see #4104)
058bbe02	2021-04-24T10:17:03	Set volume on device open
f1fab24e	2021-04-15T21:00:00	AAudio: add bootstrap in SDL_audio.c
04b2f5f6	2021-04-15T20:54:58	Android: add AAudio back-end, with playback and capture (see #3710) https://developer.android.com/ndk/guides/audio/aaudio/aaudio
4118fe62	2021-04-15T20:52:43	Android: OpenSLES, explicitly initialise the global variable 'bqPlayerPlay', it may be read even if OpenSLES back-end hasn't been intialized
0f4aba7b	2021-04-06T18:34:53	audio: Fixed assertion failure if trying to use dummy backend.
64853b73	2021-04-06T18:34:17	audio: Changed a disk and dummy backends to use _this instead of this.
9d294f1f	2021-03-27T00:53:10	audio: Allow AudioStreamGet to return 0 in RunAudio. While we should normally expect _something_ from the stream based on the AudioStreamAvailable check, it's possible for a device change to flush the stream at an inconvenient time, causing this function to return 0. Thing is, this is harmless. Either data will be NULL and the result won't matter anyway, or the data buffer will be zeroed out and the output will just be silence for the brief moment that the device change is occurring. Both scenarios work themselves out, and testing on Windows shows that this behavior is safe.
9b7babf9	2021-03-27T00:47:54	wasapi: Remove assert added by 67e8522d
5f9effaa	2021-03-28T17:45:41	audio: pipewire: Block while waiting on stream state info Initializing streams, particularly capture streams, can take many milliseconds, which is a bit much for a busy wait. Use a blocking wait instead.
8deb4063	2021-03-28T17:22:59	audio: pipewire: Avoid redundant locking The pw_thread_loop already locks and unlocks the thread mutex at the start and end of each loop iteration, so these locks are unnecessary.
5bb2bbd4	2021-03-28T17:17:00	audio: pipewire: Don't use uninitialized variables in callbacks Some of the SDL_AudioDevice struct members aren't initialized until after returning from the OpenDevice function. Since Pipewire uses it's own processing threads, the callbacks can be entered before all members of SDL_AudioDevice are initialized, such as work_buffer, callbackspec and the processing stream, which creates a race condition. Don't use these members when in the paused state to avoid potentially using uninitialized values and memory.
e7e519a4	2021-03-17T13:04:05	dsp: Refuse to initialize if there aren't any Open Sound System devices. This prevents the dsp target from stealing the audio subsystem but not being able to produce sound, so other audio targets further down the list can make an attempt instead. Thanks to Frank Praznik who did a lot of the research on this problem!
b98b5adc	2021-03-15T10:21:36	wasapi: Don't use the system's resampler.
a5f3ea14	2021-03-10T09:36:46	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.
4fbd60b8	2021-03-09T12:22:48	audio: pipewire: Remove the nickname portion of sink/source names Removes the node nickname from sink/source nodes as it doesn't provide any useful information and names now match those used in Pulseaudio, so any stored configuration data will be compatible between the two audio backends.
a4ddb175	2021-03-08T19:28:58	Formatting
7d89f09f	2020-12-18T14:28:09	ISO C90 fixes
e7edb06e	2020-12-04T00:06:15	Audio fix
2d64e37e	2020-11-02T18:09:43	Initial rebase of xerpi's port
391bb80b	2021-03-05T16:53:06	Replace duplicate functions and lstrlen/lstrcat with SDL string functions
67e8522d	2021-02-27T17:37:25	Add SDL_GetAudioDeviceSpec. This API is supported by pipewire, pulseaudio, coreaudio, wasapi, and disk.
ac8a3fda	2021-03-03T20:33:20	fix prepare_audiospec() possibly missing a bad SDL_AUDIO_CHANNELS env.
4de0c74a	2021-03-02T10:02:59	audio: pipewire: Add the application name to the stream properties
9ed01da7	2021-03-02T09:47:47	audio: pipewire: Constify and clarify period size calculations Constify the min/max period variables, use a #define for the base clock rate used in the calculations and note that changing the upper limit can have dire side effects as it's a hard limit in Pipewire.
d7ca855c	2021-03-02T09:33:11	audio: pipewire: Add missing static qualifiers to globals
84c44e01	2021-03-01T12:39:52	audio: pipewire: fix uninitialized variable warnings
7001b531	2021-02-27T12:53:08	audio: pipewire: Add vim format lines to files and fix indentation Increase indentation spacing from 2 to 4 to comply with style standards.
2fcba50e	2021-02-27T12:08:15	audio: pipewire: Code and comment cleanups Replace "magic numbers" with #defines, explain the requirements when using the userdata pointer in the node_object struct and a few other minor code and comment cleanups.
4eadd147	2021-02-25T14:00:23	audio: pipewire: Fix outdated comment
cd56f1b3	2021-02-24T14:36:58	audio: pipewire: Use "rear" designation for rear channels Use the 'R' (rear) prefixed designations for the rear audio channels instead of 'S' (surround). Surround designated channels are only used in the 8 channel configuration.
adc0a931	2021-02-24T14:08:08	audio: Move Pipewire bootstrap after Jack Move the Pipewire audio driver below others in the list so it won't be mistakenly initialized when it's not the system mixer.
21adec93	2021-02-24T12:02:54	audio: pipewire: Make enumeration structure and function names more descriptive Rename the add/remove/clear list functions and rename connected_device to io_node, as a sink/source node isn't necessarily a device.
a07f5434	2021-02-21T13:24:20	audio: pipewire: Report default devices first Further refactor the device enumeration code to retrieve the default sink/source node IDs from the metadata node. Use the retrieved IDs to sort the device list so that the default devices are at the beginning and thus are the first reported to SDL.
9afd7570	2021-02-20T13:33:12	audio: pipewire: Always buffer source audio The latency of source nodes can change depending on the overall latency of the processing graph. Incoming audio must therefore always be buffered to ensure uninterrupted delivery. The SDL_AudioStream path was removed in the input callback as the only thing it was used for was buffering audio outside of Pipewire's min/max period sizes, and that case is now handled by the omnipresent buffer.
106dc009	2021-02-19T17:18:36	audio: pipewire: Pass proper parameter to user audio callback The audio callbacks should pass the callbackspec.userdata parameter to the callback, not spec.userdata Co-authored-by: Oschowa <Oschowa@web.de>
f3ebbc06	2021-02-19T16:02:20	audio: pipewire: Retrieve the channel count and default sample rate for sinks/sources Extend device enumeration to retrieve the channel count and default sample rate for sink and source nodes. This required a fairly significant rework of the enumeration procedure as multiple callbacks are involved now. Sink/source nodes are tracked in a separate list during the enumeration process so they can be cleaned up if a device is removed before completion. These changes also simplify any future efforts that may be needed to retrieve additional configuration information from the nodes.
2f0b99a7	2021-02-13T11:56:05	audio: Add Pipewire playback/capture sink
08547adb	2021-02-20T09:28:03	pulseaudio: Add "zerocopy" playback path
ef85ed93	2021-02-17T20:53:35	pulseaudio: Initialize fragsize to fix mic recording fragsize wasn't initialized, and it is used for recording. If the value was 0 or -1, pulseaudio configures it itself. But sometimes we can get a random (and large) value that makes pulseaudio give us large sample at a very low frequency. https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/blob/master/src/pulse/def.h#L453 https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/blob/v13.0/src/pulsecore/protocol-native.c#L409
20be1d63	2020-07-15T09:13:03	emscripten: Automatically resume audio contexts This uses the mechanism added in emscripten-core/emscripten#10843 which was applied to SDL1 and OpenAL. This adds the same for SDL2. This also reverts commit 865eaddffed50dbd13e6564c3f73902472cf74e8 which did something similar, but the new mechanism is more effective.
f443a6fc	2021-02-11T02:05:02	Fix format string warnings for width-based integers The DJGPP compiler emits many warnings for conflicts between print format specifiers and argument types. To fix the warnings, I added `SDL_PRIx32` macros for use with `Sint32` and `Uint32` types. The macros alias those found in <inttypes.h> or fallback to a reasonable default. As an alternative, print arguments could be cast to plain old integers. I opted slightly for the current solution as it felt more technically correct, despite making the format strings more verbose.
b852590b	2021-01-24T17:02:40	minor clean-up in SDL_os2audio.c
8f102589	2021-01-23T17:28:10	os2audio: changed backend name from MMOS2 to DART (like SDL-1.2)
50ea3b77	2021-01-08T10:09:37	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.

5be8a221

2021-11-17T20:37:51

Add audio conversion from/to 61

b649314d

2021-11-15T13:43:40

Add comment to audio clipping (see bug #4104)

5c067906

2021-11-15T00:55:04

wasapi: AvSetMmThreadCharacteristicsW takes an LPCWSTR param, not LPWSTR

be7b663c

2021-11-14T02:30:56

audio/winmm/SDL_winmm.c (SetMMerror): constify.

c8061ed2

2021-11-13T10:33:37

alsa: Fix possible uninitialized string

704edf63

2021-11-12T17:07:22

audio: Fix crash calling SDL_OpenAudio() after SDL_AudioInit() fails The SDL_WasInit() checks don't work when using SDL_AudioInit() directly, which is exactly what audio_initOpenCloseQuitAudio() in testautomation does.

78013aee

2021-11-12T16:57:24

alsa: Fix use-after-free when reinitializing

c2dd50a9

2021-11-12T08:28:02

Fixed whitespace

3bf7994f

2021-09-27T14:38:12

Add and use `SDL_FALLTHROUGH` for fallthroughs Case fallthrough warnings can be suppressed using the __fallthrough__ compiler attribute. Unfortunately, not all compilers have this attribute, or even have __has_attribute to check if they have the __fallthrough__ attribute. [[fallthrough]] is also available in C++17 and the next C2x, but not everyone uses C++17 or C2x. So define the SDL_FALLTHROUGH macro to deal with those problems - if we are using C++17 or C2x, it expands to [[fallthrough]]; else if the compiler has __has_attribute and has the __fallthrough__ attribute, then it expands to __attribute__((__fallthrough__)); else it expands to an empty statement, with a /* fallthrough */ comment (it's a do {} while (0) statement, because users of this macro need to use a semicolon, because [[fallthrough]] and __attribute__((__fallthrough__)) require a semicolon). Clang before Clang 10 and GCC before GCC 7 have problems with using __attribute__ as a sole statement and warn about a "declaration not declaring anything", so fall back to using the /* fallthrough */ comment if we are using those older compiler versions. Applications using SDL are also free to use this macro (because it is defined in begin_code.h). All existing /* fallthrough */ comments have been replaced with this macro. Some of them were unnecessary because they were the last case in a switch; using SDL_FALLTHROUGH in those cases would result in a compile error on compilers that support __fallthrough__, for having a __attribute__((__fallthrough__)) statement that didn't immediately precede a case label.

abc12a83

2021-11-11T15:58:44

Revert "Add and use `SDL_FALLTHROUGH` for fallthroughs" This reverts commit 66a08aa3914a98667f212e79b4f0b9453203d656. This causes problems with older compilers: https://github.com/libsdl-org/SDL/pull/4791#issuecomment-966630997

66a08aa3

2021-09-27T14:38:12

Add and use `SDL_FALLTHROUGH` for fallthroughs Case fallthrough warnings can be suppressed using the __fallthrough__ compiler attribute. Unfortunately, not all compilers have this attribute, or even have __has_attribute to check if they have the __fallthrough__ attribute. [[fallthrough]] is also available in C++17 and the next C2x, but not everyone uses C++17 or C2x. So define the SDL_FALLTHROUGH macro to deal with those problems - if we are using C++17 or C2x, it expands to [[fallthrough]]; else if the compiler has __has_attribute and has the __fallthrough__ attribute, then it expands to __attribute__((__fallthrough__)); else it expands to an empty statement, with a /* fallthrough */ comment (it's a do {} while (0) statement, because users of this macro need to use a semicolon, because [[fallthrough]] and __attribute__((__fallthrough__)) require a semicolon). Applications using SDL are also free to use this macro (because it is defined in begin_code.h). All existing /* fallthrough */ comments have been replaced with this macro. Some of them were unnecessary because they were the last case in a switch; using SDL_FALLTHROUGH in those cases would result in a compile error on compilers that support __fallthrough__, for having a __attribute__((__fallthrough__)) statement that didn't immediately precede a case label.

6d5edfa7

2021-11-02T15:59:26

Fixed crash on Android 8, due to bugs in AAudio implementation

c97c4687

2021-10-30T15:56:54

core: Convert SDL_IOReady()'s 2nd parameter to flags

8a4a282a

2021-10-30T16:02:12

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.

072e3fdf

2021-10-14T23:17:08

Fixed bug #4534: NEON implementation of Convert51ToStereo (Thanks Ryan!)

2423c514

2021-10-13T09:33:51

Work around hang in AAudioStream_write() during extended shared object loading while running in a debugger. Observed on a OnePlus 8T (KB2005) running Oxygen OS 11.0.10.10.KB05AA. The observed behavior is that any nonzero timeout value would hang until the device was paused and resumed. And a zero timeout value would always return 0 frames written even when audio fragments could be heard. Making a manual timeout system unworkable. None of the straightforward systems imply that there's a detectable problem before the call to AAudioStream_write(). And the callback set within AAudioStreamBuilder_setErrorCallback() does not get called as we enter the hang state. I've found that AAudioStream_getTimestamp() will report an error state from another thread. So this change codifies that behavior a bit until a better fix or more root cause can be found.

e92a639b

2021-10-04T23:00:28

replaced many uses of libc calls with SDL_ counterparts in os2 sources. TODO: core/os2 and geniconv sources _must_ be updated, as well..

345c161f

2021-09-22T09:06:45

Fixed some accidental uses of external C runtime functions

ce11caa8

2021-09-21T16:41:29

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)

c45facf2

2021-09-21T11:13:46

alsa: clean up macro salsa a little.

bf97c5a2

2021-09-08T14:47:40

Make sure SDL file descriptors don't leak into child processes

a1ffeda0

2021-08-28T22:52:13

Add SDL_HINT_APP_NAME and DBUS inhibition hint See SDL bug #4703. This implements two new hints: - SDL_APP_NAME - SDL_SCREENSAVER_INHIBIT_ACTIVITY_NAME The former is the successor to SDL_HINT_AUDIO_DEVICE_APP_NAME, and acts as a generic "application name" used both by audio drivers and DBUS screensaver inhibition. If SDL_AUDIO_DEVICE_APP_NAME is set, it will still take priority over SDL_APP_NAME. The second allows the "activity name" used by org.freedesktop.ScreenSavver's Inhibit method, which are often shown in the UI as the reason the screensaver (and/or suspend/other power-managment features) are disabled.

7d90df0e

2021-08-29T15:24:23

Restore previous behavior of empty SDL_AUDIODRIVER trying all drivers. The recent change to make SDL_AUDIODRIVER support comma-separated lists broke the previous behavior where an SDL_AUDIODRIVER that was empty behaved the same as if it was not set at all. This old behavior was necessary to paper over differences in platforms where SDL_setenv may or may not actually delete the env var if an empty string is specified. This patch just adds a simple check to ensure SDL_AUDIODRIVER is not empty before using it, restoring the old interpretation of the empty var.

3261f7f6

2021-08-26T16:15:30

audio: Support "pulse" as an alias for "pulseaudio" Originally, SDL 1.2 used "pulse" as the name for its PulseAudio driver. While it now supports "pulseaudio" as well for compatibility with SDL 2.0 [1], there are still scripts and distro packages which set SDL_AUDIODRIVER=pulse [2]. While it's possible to remove this in most circumstances or replace it with "pulseaudio" or a comma-separated list, this may still conflict if the environment variable is set globally and old binary builds of SDL 1.2 (e.g. packaged with older games) are being used. To fix this on SDL 2.0, add a hardcoded check for "pulse" as an audio driver name, and replace it with "pulseaudio". This mimics what SDL 1.2 does (but in reverse). Note that setting driver_attempt{,_len} is safe here as they're reset correctly based on driver_attempt_end on the next loop. [1] https://github.com/libsdl-org/SDL-1.2/commit/d9514097846381cd30fe08df65dbdd48de92a058 [2] https://bugzilla.opensuse.org/show_bug.cgi?id=1189778

9504bb12

2021-08-23T00:47:25

pulseaudio: Fix some function signatures that expect const pointers. This might have changed at some point in the Pulse API, or this might have always been wrong, but we didn't notice because the dynamic loading code hides it by casting things to void *. The static path, where it assigns the function pointer directly, puts out a clear compiler warning, though.

70c23b25

2021-08-18T13:18:11

audio: pipewire: Reset hotplug atomic variables on deinit.

bfa15931

2021-08-18T12:04:38

audio: pipewire: Set PW_KEY_NODE_RATE to suggest a rate. This can be used by recent pipewire to avoid resampling.

07a2d71e

2021-03-30T11:56:38

emscripten: Feed silence to device when paused

1e921352

2021-08-13T07:58:48

Improve portability of SDL_Convert51ToStereo_AVX Don't rely on checking __clang_major__ since it is not comparable between different vendors. Don't use "#pragma clang attribute" since it is only available in relatively recent versions, there's no obvious way to check if it's supported, and just using __attribute__ directly (for gcc as well) results in simpler code anyway.

ed6eb07e

2021-08-12T01:40:50

SDL_wasapi.c: fixed build against older SDKs.

44a76710

2021-08-11T12:55:50

Don't disable clang avx instrinsics on win32 if __AVX__ is defined. C.f.: https://github.com/libsdl-org/SDL/issues/4533

ac32c522

2021-08-10T18:11:09

Try using the built-in WASAPI audio rate conversion Fixes https://github.com/libsdl-org/SDL/issues/4608

a0af7ce7

2021-08-10T15:05:49

OSS is no longer the preferred audio backend on modern UNIX systems Fixes https://github.com/libsdl-org/SDL/issues/4207

25f9ed87

2021-08-10T13:10:36

audio: Fix false positives in driver name comparison Without this change, driver names don't get matched correctly; for example "a" can get matched with "alsa" since it only checks whether the string matches up to the length of the requested driver name.

bec78357

2021-08-06T14:20:55

Better fix for compiling using clang on Windows This fixes https://github.com/libsdl-org/SDL/issues/4533

cae7bd9b

2021-08-06T12:01:24

Don't use AVX with clang if the compiler isn't building with AVX instructions Fixes https://github.com/libsdl-org/SDL/issues/4533

659e1f0a

2021-07-29T17:49:52

audiocvt: The to-5.1 converters now soften FL and FR channels more. This is experimental and might be tweaked further. Reference #4104. Also reference: https://github.com/Keriew/augustus/issues/194#issuecomment-847655049

8f38ba4d

2021-07-29T18:02:47

Fix casts that should be using uintptr_t This is needed to support CHERI, and thus Arm's experimental Morello prototype, where pointers are implemented using unforgeable capabilities that include bounds and permissions metadata to provide fine-grained spatial and referential memory safety, as well as revocation by sweeping memory to provide heap temporal memory safety. On most systems (anything with a flat memory hierarchy rather than using segment-based addressing), size_t and uintptr_t are the same type. However, on CHERI, size_t is just an integer offset, whereas uintptr_t is still a capability as described above. Casting a pointer to size_t will strip the metadata and validity tag, and casting from size_t to a pointer will result in a null-derived capability whose validity tag is not set, and thus cannot be dereferenced without faulting. The audio and cursor casts were harmless as they intend to stuff an integer into a pointer, but using uintptr_t is the idiomatic way to do that and silences our compiler warnings (which our build tool makes fatal by default as they often indicate real problems). The iconv and egl casts were true positives as SDL_iconv_t and iconv_t are pointer types, as is NativeDisplayType on most OSes, so this would have trapped at run time when using the round-tripped pointers. The gles2 casts were also harmless; the OpenGL API defines this argument to be a pointer type (and uses the argument name "pointer"), but it in fact represents an integer offset, so like audio and cursor the additional idiomatic cast is needed to silence the warning.

53987e9b

2021-07-28T21:03:42

Optimized SDL_Convert51ToStereo_AVX

cf85710c

2021-07-28T22:55:10

SDL_audiocvt.c: disable AVX for clang < 5 and gcc < 4.9 See: https://github.com/libsdl-org/SDL/issues/4533

c72aef26

2021-05-01T23:56:23

Fixed microphone randomly stop working WASAPI_WaitDevice is used for audio playback and capture, but needs to behave slighty different. For playback `GetCurrentPadding` returns the padding which is already queued, so WaitDevice should return when buffer length falls below the buffer threshold (`maxpadding`). For capture `GetCurrentPadding` returns the available data which can be read, so WaitDevice can return as soon as any data is available. In the old implementation WaitDevice could suddenly hang. This is because on many capture devices the buffer (`padding`) wasn't filled fast enough to surpass `maxpadding`. But if at one point (due to unlucky timing) more than maxpadding frames were available, WaitDevice would not return anymore. Issue #3234 is probably related to this.

4ef8674d

2021-07-27T14:18:44

Revert "wasapi: Open capture devices the way we used to." This reverts commit 0d0fee7569803ddc41985bfc249418b02dd8cd97.

0d0fee75

2021-07-27T14:12:18

wasapi: Open capture devices the way we used to. This should work around the regression in #3234, since it basically reverts the problem change, but only for capture devices. Fixes #3234.

736a424f

2021-07-27T13:12:57

pulseaudio: Optionally add "monitor" sources to device list. There's a new hint to enable this. Fixes #2917.

8d790b10

2021-07-27T12:23:46

audiocvt: stereo-to-mono SSE3 now uses unaligned accesses. On modern CPUs, there's no penalty for using the unaligned instruction on aligned memory, but now it can vectorize unaligned data too, which even if it's not optimal, is still going to be faster than the scalar fallback. Fixes #4532.

45de0a1d

2021-04-02T06:28:10

Support comma-separated lists in SDL_AUDIODRIVER

b2c8d3e9

2021-06-11T22:14:54

audiocvt: 5.1 to Stereo conversion utilizing AVX

638befc1

2021-06-10T17:22:39

audiocvt: 5.1 to Stereo conversion utilizing SSE

db56526f

2021-06-10T13:07:27

audiocvt: Replace divisions Division is expensive and the compiler can not replace it themselves. Though we now we will be ok in terms of floating point edge behaviour.

86ee383f

2021-05-25T09:59:45

Removed duplicate SDL_AtomicGet()

db146e66

2021-05-25T10:34:04

Fixed warnings building with Visual Studio

58884e4c

2021-05-04T00:23:40

SDL_audiocvt.c: fixed MSVC double->float conversion warnings.

8ac0fb52

2021-04-29T09:29:02

OpenSLES: CloseDevice() is called at higher level, if OpenDevice() fails - explicit initialization of static variables

fcbf19b7

2021-04-28T21:04:47

AAudio: make sure stream is not null to prevent crash in RequestStop (see #3710)

f8695185

2021-04-27T11:07:51

Audio: normalize conversion Stereo to 5.1, Quad to 7.1, 5.1 to 7.1 (bug #4104)

21349901

2021-04-27T10:57:48

Audio: convert 5.1 to 7.1, use right-surround for r-front and r-back (see #4104)

058bbe02

2021-04-24T10:17:03

Set volume on device open

f1fab24e

2021-04-15T21:00:00

AAudio: add bootstrap in SDL_audio.c

04b2f5f6

2021-04-15T20:54:58

Android: add AAudio back-end, with playback and capture (see #3710) https://developer.android.com/ndk/guides/audio/aaudio/aaudio

4118fe62

2021-04-15T20:52:43

Android: OpenSLES, explicitly initialise the global variable 'bqPlayerPlay', it may be read even if OpenSLES back-end hasn't been intialized

0f4aba7b

2021-04-06T18:34:53

audio: Fixed assertion failure if trying to use dummy backend.

64853b73

2021-04-06T18:34:17

audio: Changed a disk and dummy backends to use _this instead of this.

9d294f1f

2021-03-27T00:53:10

audio: Allow AudioStreamGet to return 0 in RunAudio. While we should normally expect _something_ from the stream based on the AudioStreamAvailable check, it's possible for a device change to flush the stream at an inconvenient time, causing this function to return 0. Thing is, this is harmless. Either data will be NULL and the result won't matter anyway, or the data buffer will be zeroed out and the output will just be silence for the brief moment that the device change is occurring. Both scenarios work themselves out, and testing on Windows shows that this behavior is safe.

9b7babf9

2021-03-27T00:47:54

wasapi: Remove assert added by 67e8522d

5f9effaa

2021-03-28T17:45:41

audio: pipewire: Block while waiting on stream state info Initializing streams, particularly capture streams, can take many milliseconds, which is a bit much for a busy wait. Use a blocking wait instead.

8deb4063

2021-03-28T17:22:59

audio: pipewire: Avoid redundant locking The pw_thread_loop already locks and unlocks the thread mutex at the start and end of each loop iteration, so these locks are unnecessary.

5bb2bbd4

2021-03-28T17:17:00

audio: pipewire: Don't use uninitialized variables in callbacks Some of the SDL_AudioDevice struct members aren't initialized until after returning from the OpenDevice function. Since Pipewire uses it's own processing threads, the callbacks can be entered before all members of SDL_AudioDevice are initialized, such as work_buffer, callbackspec and the processing stream, which creates a race condition. Don't use these members when in the paused state to avoid potentially using uninitialized values and memory.

e7e519a4

2021-03-17T13:04:05

dsp: Refuse to initialize if there aren't any Open Sound System devices. This prevents the dsp target from stealing the audio subsystem but not being able to produce sound, so other audio targets further down the list can make an attempt instead. Thanks to Frank Praznik who did a lot of the research on this problem!

b98b5adc

2021-03-15T10:21:36

wasapi: Don't use the system's resampler.

a5f3ea14

2021-03-10T09:36:46

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.

4fbd60b8

2021-03-09T12:22:48

audio: pipewire: Remove the nickname portion of sink/source names Removes the node nickname from sink/source nodes as it doesn't provide any useful information and names now match those used in Pulseaudio, so any stored configuration data will be compatible between the two audio backends.

a4ddb175

2021-03-08T19:28:58

Formatting

7d89f09f

2020-12-18T14:28:09

ISO C90 fixes

e7edb06e

2020-12-04T00:06:15

Audio fix

2d64e37e

2020-11-02T18:09:43

Initial rebase of xerpi's port

391bb80b

2021-03-05T16:53:06

Replace duplicate functions and lstrlen/lstrcat with SDL string functions

67e8522d

2021-02-27T17:37:25

Add SDL_GetAudioDeviceSpec. This API is supported by pipewire, pulseaudio, coreaudio, wasapi, and disk.

ac8a3fda

2021-03-03T20:33:20

fix prepare_audiospec() possibly missing a bad SDL_AUDIO_CHANNELS env.

4de0c74a

2021-03-02T10:02:59

audio: pipewire: Add the application name to the stream properties

9ed01da7

2021-03-02T09:47:47

audio: pipewire: Constify and clarify period size calculations Constify the min/max period variables, use a #define for the base clock rate used in the calculations and note that changing the upper limit can have dire side effects as it's a hard limit in Pipewire.

d7ca855c

2021-03-02T09:33:11

audio: pipewire: Add missing static qualifiers to globals

84c44e01

2021-03-01T12:39:52

audio: pipewire: fix uninitialized variable warnings

7001b531

2021-02-27T12:53:08

audio: pipewire: Add vim format lines to files and fix indentation Increase indentation spacing from 2 to 4 to comply with style standards.

2fcba50e

2021-02-27T12:08:15

audio: pipewire: Code and comment cleanups Replace "magic numbers" with #defines, explain the requirements when using the userdata pointer in the node_object struct and a few other minor code and comment cleanups.

4eadd147

2021-02-25T14:00:23

audio: pipewire: Fix outdated comment

cd56f1b3

2021-02-24T14:36:58

audio: pipewire: Use "rear" designation for rear channels Use the 'R' (rear) prefixed designations for the rear audio channels instead of 'S' (surround). Surround designated channels are only used in the 8 channel configuration.

adc0a931

2021-02-24T14:08:08

audio: Move Pipewire bootstrap after Jack Move the Pipewire audio driver below others in the list so it won't be mistakenly initialized when it's not the system mixer.

21adec93

2021-02-24T12:02:54

audio: pipewire: Make enumeration structure and function names more descriptive Rename the add/remove/clear list functions and rename connected_device to io_node, as a sink/source node isn't necessarily a device.

a07f5434

2021-02-21T13:24:20

audio: pipewire: Report default devices first Further refactor the device enumeration code to retrieve the default sink/source node IDs from the metadata node. Use the retrieved IDs to sort the device list so that the default devices are at the beginning and thus are the first reported to SDL.

9afd7570

2021-02-20T13:33:12

audio: pipewire: Always buffer source audio The latency of source nodes can change depending on the overall latency of the processing graph. Incoming audio must therefore always be buffered to ensure uninterrupted delivery. The SDL_AudioStream path was removed in the input callback as the only thing it was used for was buffering audio outside of Pipewire's min/max period sizes, and that case is now handled by the omnipresent buffer.

106dc009

2021-02-19T17:18:36

audio: pipewire: Pass proper parameter to user audio callback The audio callbacks should pass the callbackspec.userdata parameter to the callback, not spec.userdata Co-authored-by: Oschowa <Oschowa@web.de>

f3ebbc06

2021-02-19T16:02:20

audio: pipewire: Retrieve the channel count and default sample rate for sinks/sources Extend device enumeration to retrieve the channel count and default sample rate for sink and source nodes. This required a fairly significant rework of the enumeration procedure as multiple callbacks are involved now. Sink/source nodes are tracked in a separate list during the enumeration process so they can be cleaned up if a device is removed before completion. These changes also simplify any future efforts that may be needed to retrieve additional configuration information from the nodes.

2f0b99a7

2021-02-13T11:56:05

audio: Add Pipewire playback/capture sink

08547adb

2021-02-20T09:28:03

pulseaudio: Add "zerocopy" playback path

ef85ed93

2021-02-17T20:53:35

pulseaudio: Initialize fragsize to fix mic recording fragsize wasn't initialized, and it is used for recording. If the value was 0 or -1, pulseaudio configures it itself. But sometimes we can get a random (and large) value that makes pulseaudio give us large sample at a very low frequency. https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/blob/master/src/pulse/def.h#L453 https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/blob/v13.0/src/pulsecore/protocol-native.c#L409

20be1d63

2020-07-15T09:13:03

emscripten: Automatically resume audio contexts This uses the mechanism added in emscripten-core/emscripten#10843 which was applied to SDL1 and OpenAL. This adds the same for SDL2. This also reverts commit 865eaddffed50dbd13e6564c3f73902472cf74e8 which did something similar, but the new mechanism is more effective.

f443a6fc

2021-02-11T02:05:02

Fix format string warnings for width-based integers The DJGPP compiler emits many warnings for conflicts between print format specifiers and argument types. To fix the warnings, I added `SDL_PRIx32` macros for use with `Sint32` and `Uint32` types. The macros alias those found in <inttypes.h> or fallback to a reasonable default. As an alternative, print arguments could be cast to plain old integers. I opted slightly for the current solution as it felt more technically correct, despite making the format strings more verbose.

b852590b

2021-01-24T17:02:40

minor clean-up in SDL_os2audio.c

8f102589

2021-01-23T17:28:10

os2audio: changed backend name from MMOS2 to DART (like SDL-1.2)

50ea3b77

2021-01-08T10:09:37

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.

kc3-lang/SDL/src/audio

src/audio

Log