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audio: Port WASAPI to WinRT, remove XAudio2 backend.

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XAudio2 doesn't have capture support, so WASAPI was to replace it; the holdout
was WinRT, which still needed it as its primary audio target until the WASAPI
code code be made to work.

The support matrix now looks like:

WinXP: directsound by default, winmm as a fallback for buggy drivers.
Vista+: WASAPI (directsound and winmm as fallbacks for debugging).
WinRT: WASAPI

--HG--
extra : amend_source : a28a9a9fbb09c4c25df05fa0a754fce0bee62335
extra : histedit_source : e5727ceb1a5db5806ce02534d8ffe4892eb6f5d9
This commit is contained in:
Ryan C. Gordon 2017-12-06 12:24:32 -05:00
parent 8b08b7b07b
commit 1745441419
30 changed files with 958 additions and 1518 deletions
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2
include/SDL_config_winrt.h
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@ -175,7 +175,7 @@ typedef unsigned int uintptr_t;
#define HAVE__FSEEKI64 1
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_XAUDIO2 1
#define SDL_AUDIO_DRIVER_WASAPI 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1