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Fixes to device info retrieval for Emscripten.

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David Reid
2018-04-25 19:01:32 +10:00
parent d9d9901e69
commit 7c24036c7c
1 changed files with 16 additions and 0 deletions
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mini_al.h
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@@ -14394,6 +14394,21 @@ mal_result mal_context_get_device_info__sdl(mal_context* pContext, mal_device_ty
// To get an accurate idea on the backend's native format we need to open the device. Not ideal, but it's the only way. An
// alternative to this is to report all channel counts, sample rates and formats, but that doesn't offer a good representation
// of the device's _actual_ ideal format.
//
// Note: With Emscripten, it looks like non-zero values need to be specified for desiredSpec. Whatever is specified in
// desiredSpec will be used by SDL since it uses it just does it's own format conversion internally. Therefore, from what
// I can tell, there's no real way to know the device's actual format which means I'm just going to fall back to the full
// range of channels and sample rates on Emscripten builds.
#if defined(__EMSCRIPTEN__)
pDeviceInfo->minChannels = MAL_MIN_CHANNELS;
pDeviceInfo->maxChannels = MAL_MAX_CHANNELS;
pDeviceInfo->minSampleRate = MAL_MIN_SAMPLE_RATE;
pDeviceInfo->maxSampleRate = MAL_MAX_SAMPLE_RATE;
pDeviceInfo->formatCount = 3;
pDeviceInfo->formats[0] = mal_format_u8;
pDeviceInfo->formats[1] = mal_format_s16;
pDeviceInfo->formats[2] = mal_format_s32;
#else
MAL_SDL_AudioSpec desiredSpec, obtainedSpec;
mal_zero_memory(&desiredSpec, sizeof(desiredSpec));
@@ -14447,6 +14462,7 @@ mal_result mal_context_get_device_info__sdl(mal_context* pContext, mal_device_ty
} else {
return MAL_FORMAT_NOT_SUPPORTED;
}
#endif
return MAL_SUCCESS;
}