This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_xaudio2_winrthelpers.cpp
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#include <xaudio2.h>
#include "SDL_xaudio2_winrthelpers.h"
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#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP
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using Windows::Devices::Enumeration::DeviceClass;
using Windows::Devices::Enumeration::DeviceInformation;
using Windows::Devices::Enumeration::DeviceInformationCollection;
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HRESULT IXAudio2_GetDeviceCount(IXAudio2 * ixa2, UINT32 * devcount)
{
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#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
// There doesn't seem to be any audio device enumeration on Windows Phone.
// In lieu of this, just treat things as if there is one and only one
// audio device.
*devcount = 1;
return S_OK;
#else
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// TODO, WinRT: make xaudio2 device enumeration only happen once, and in the background
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auto operation = DeviceInformation::FindAllAsync(DeviceClass::AudioRender);
while (operation->Status != Windows::Foundation::AsyncStatus::Completed)
{
}
DeviceInformationCollection^ devices = operation->GetResults();
*devcount = devices->Size;
return S_OK;
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}
HRESULT IXAudio2_GetDeviceDetails(IXAudio2 * unused, UINT32 index, XAUDIO2_DEVICE_DETAILS * details)
{
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#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
// Windows Phone doesn't seem to have the same device enumeration APIs that
// Windows 8/RT has, or it doesn't have them at all. In lieu of this,
// just treat things as if there is one, and only one, default device.
if (index != 0)
{
return XAUDIO2_E_INVALID_CALL;
}
if (details)
{
wcsncpy_s(details->DeviceID, ARRAYSIZE(details->DeviceID), L"default", _TRUNCATE);
wcsncpy_s(details->DisplayName, ARRAYSIZE(details->DisplayName), L"default", _TRUNCATE);
}
return S_OK;
#else
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auto operation = DeviceInformation::FindAllAsync(DeviceClass::AudioRender);
while (operation->Status != Windows::Foundation::AsyncStatus::Completed)
{
}
DeviceInformationCollection^ devices = operation->GetResults();
if (index >= devices->Size)
{
return XAUDIO2_E_INVALID_CALL;
}
DeviceInformation^ d = devices->GetAt(index);
if (details)
{
wcsncpy_s(details->DeviceID, ARRAYSIZE(details->DeviceID), d->Id->Data(), _TRUNCATE);
wcsncpy_s(details->DisplayName, ARRAYSIZE(details->DisplayName), d->Name->Data(), _TRUNCATE);
}
return S_OK;