SDL_xaudio2_winrthelpers.cpp
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../../SDL_internal.h"
#include <xaudio2.h>
#include "SDL_xaudio2_winrthelpers.h"
#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP
using Windows::Devices::Enumeration::DeviceClass;
using Windows::Devices::Enumeration::DeviceInformation;
using Windows::Devices::Enumeration::DeviceInformationCollection;
#endif
extern "C" HRESULT __cdecl IXAudio2_GetDeviceCount(IXAudio2 * ixa2, UINT32 * devcount)
{
#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
// TODO, WinRT: make xaudio2 device enumeration only happen once, and in the background
auto operation = DeviceInformation::FindAllAsync(DeviceClass::AudioRender);
while (operation->Status != Windows::Foundation::AsyncStatus::Completed)
{
}
DeviceInformationCollection^ devices = operation->GetResults();
*devcount = devices->Size;
return S_OK;
#endif
}
extern "C" HRESULT IXAudio2_GetDeviceDetails(IXAudio2 * unused, UINT32 index, XAUDIO2_DEVICE_DETAILS * details)
{
#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
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;
#endif
}
IXAudio2_GetDeviceCount
HRESULT __cdecl IXAudio2_GetDeviceCount(IXAudio2 *ixa2, UINT32 *devcount)
Definition: SDL_xaudio2_winrthelpers.cpp:32
IXAudio2
interface IXAudio2 IXAudio2
Definition: SDL_xaudio2.h:35
d
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 SDL_AssertionHandler void SDL_SpinLock SDL_atomic_t int int return SDL_atomic_t return void void void return void return int return SDL_AudioSpec SDL_AudioSpec return int int return return int SDL_RWops int SDL_AudioSpec Uint8 ** d
Definition: SDL_dynapi_procs.h:121
XAUDIO2_DEVICE_DETAILS::DeviceID
WCHAR DeviceID[256]
Definition: SDL_xaudio2_winrthelpers.h:28
SDL_xaudio2_winrthelpers.h
S_OK
#define S_OK
Definition: SDL_directx.h:47
index
GLuint index
Definition: SDL_opengl_glext.h:660
XAUDIO2_DEVICE_DETAILS::DisplayName
WCHAR DisplayName[256]
Definition: SDL_xaudio2_winrthelpers.h:29
IXAudio2_GetDeviceDetails
HRESULT IXAudio2_GetDeviceDetails(IXAudio2 *unused, UINT32 index, XAUDIO2_DEVICE_DETAILS *details)
Definition: SDL_xaudio2_winrthelpers.cpp:53
XAUDIO2_DEVICE_DETAILS
Definition: SDL_xaudio2_winrthelpers.h:26