Commit Graph

9 Commits

Author SHA1 Message Date
Ryan C. Gordon f6a280ab7f 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.
2016-10-07 15:13:46 -04:00
Ryan C. Gordon 21c7fe0060 windows: directsound should also map audio device GUIDs to proper names.
Moved this code from winmm into core so both can use it.

DirectSound (at least on Win10) also returns truncated device names, even
though it's handed in as a string pointer and not a static-sized buffer.  :/
2016-08-10 15:34:24 -04:00
Ryan C. Gordon a0ff2554c1 winmm: Try to get full device names from the Windows Registry. 2016-08-07 01:48:38 -04:00
Ryan C. Gordon ff7df7e687 winmm: Added a FIXME for truncated device names. 2016-08-06 23:05:02 -04:00
Ryan C. Gordon 51d1523380 winmm: Implemented audio capture support. 2016-08-06 19:34:32 -04:00
Ryan C. Gordon 761a79788c audio: changed some SDL_memset() calls to SDL_zero(), other minor corrections. 2016-08-05 01:59:06 -04:00
Ryan C. Gordon 9b64772775 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.
2016-08-05 01:44:41 -04:00
Sam Lantinga 42065e785d Updated copyright to 2016 2016-01-02 10:10:34 -08:00
Philipp Wiesemann 0e45984fa0 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().
2015-06-21 17:33:46 +02:00