src/audio/SDL_sysaudio.h


Log

Author Commit Date CI Message
Sam Lantinga 57d01d7d 2016-11-13T22:57:41 Patch from Sylvain to fix clang warnings
Ryan C. Gordon f6a280ab 2016-10-07T15:13:46 audio: Don't trust audio drivers to drain pending audio. This tends to be a frequent spot where drivers hang, and the waits were often unreliable in any case. Instead, our audio thread now alerts the driver that we're done streaming audio (which currently XAudio2 uses to alert the system not to warn about the impending underflow) and then SDL_Delay()'s for a duration that's reasonable to drain the DMA buffers before closing the device.
Ryan C. Gordon 76f48acf 2016-10-07T14:35:25 audio: threading and device hang improvements. This tries to make SDL robust against device drivers that have hung up, apps don't freeze in catastrophic (but not necessarily uncommon) conditions. Now we detach the audio thread and let it clean up and don't care if it never actually runs to completion.
Sam Lantinga bac61096 2016-10-04T06:48:07 ensure SDL_AUDIODEVICEREMOVED gets sent when hotplug removes a device James Zipperer The problem I was seeing was that the the ALSA hotplug thread would call SDL_RemoveAudioDevice, but my application code was not seeing an SDL_AUDIODEVICEREMOVED event to go along with it. To fix it, I added some code into SDL_RemoveAudioDevice to call SDL_OpenedAudioDeviceDisconnected on the corresponding open audio device. There didn't appear to be a way to cross reference the handle that SDL_RemoveAudioDevice gets and the SDL_AudioDevice pointer that SDL_OpenedAudioDeviceDisconnected needs, so I ended up adding a void *handle field to struct SDL_AudioDevice so that I could do the cross reference. Is there some other way beside adding a void *handle field to the struct to get the proper information for SDL_OpenedAudioDeviceDisconnected?
Ryan C. Gordon 978df1ad 2016-08-06T03:39:15 disk audio: Implemented "capture" support, cleaned up some things.
Ryan C. Gordon 9b2a59ef 2016-08-05T02:04:48 audio: Changed OnlyHasDefaultInputDevice to OnlyHasDefaultCaptureDevice.
Ryan C. Gordon 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.
Ryan C. Gordon 0d0f7080 2016-08-02T13:50:21 audio: implemented higher level infrastructure for running capture devices.
Ryan C. Gordon 6d5c9c1e 2016-08-02T13:48:52 audio: Made some SDL_AudioDevice fields atomic. This makes sure they're properly communicated to the audio threads.
Ryan C. Gordon 67f2538c 2016-08-01T13:32:27 audio: changed some internal ints to be SDL_bools.
Ryan C. Gordon c754662d 2016-08-01T11:45:45 audio: Make SDL_AudioDevice::shutdown an atomic value. Just to make sure this get communicated to the audio thread properly.
Sam Lantinga 42065e78 2016-01-02T10:10:34 Updated copyright to 2016
Philipp Wiesemann 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().