cscg22-gearboy

CSCG 2022 Challenge 'Gearboy'
git clone https://git.sinitax.com/sinitax/cscg22-gearboy
Log | Files | Refs | sfeed.txt

SDL_xaudio2_winrthelpers.cpp (3321B)

      1/*
      2  Simple DirectMedia Layer
      3  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
      4
      5  This software is provided 'as-is', without any express or implied
      6  warranty.  In no event will the authors be held liable for any damages
      7  arising from the use of this software.
      8
      9  Permission is granted to anyone to use this software for any purpose,
     10  including commercial applications, and to alter it and redistribute it
     11  freely, subject to the following restrictions:
     12
     13  1. The origin of this software must not be misrepresented; you must not
     14     claim that you wrote the original software. If you use this software
     15     in a product, an acknowledgment in the product documentation would be
     16     appreciated but is not required.
     17  2. Altered source versions must be plainly marked as such, and must not be
     18     misrepresented as being the original software.
     19  3. This notice may not be removed or altered from any source distribution.
     20*/
     21#include "../../SDL_internal.h"
     22
     23#include <xaudio2.h>
     24#include "SDL_xaudio2_winrthelpers.h"
     25
     26#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP
     27using Windows::Devices::Enumeration::DeviceClass;
     28using Windows::Devices::Enumeration::DeviceInformation;
     29using Windows::Devices::Enumeration::DeviceInformationCollection;
     30#endif
     31
     32extern "C" HRESULT __cdecl IXAudio2_GetDeviceCount(IXAudio2 * ixa2, UINT32 * devcount)
     33{
     34#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
     35    // There doesn't seem to be any audio device enumeration on Windows Phone.
     36    // In lieu of this, just treat things as if there is one and only one
     37    // audio device.
     38    *devcount = 1;
     39    return S_OK;
     40#else
     41    // TODO, WinRT: make xaudio2 device enumeration only happen once, and in the background
     42    auto operation = DeviceInformation::FindAllAsync(DeviceClass::AudioRender);
     43    while (operation->Status != Windows::Foundation::AsyncStatus::Completed)
     44    {
     45    }
     46 
     47    DeviceInformationCollection^ devices = operation->GetResults();
     48    *devcount = devices->Size;
     49    return S_OK;
     50#endif
     51}
     52
     53extern "C" HRESULT IXAudio2_GetDeviceDetails(IXAudio2 * unused, UINT32 index, XAUDIO2_DEVICE_DETAILS * details)
     54{
     55#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
     56    // Windows Phone doesn't seem to have the same device enumeration APIs that
     57    // Windows 8/RT has, or it doesn't have them at all.  In lieu of this,
     58    // just treat things as if there is one, and only one, default device.
     59    if (index != 0)
     60    {
     61        return XAUDIO2_E_INVALID_CALL;
     62    }
     63
     64    if (details)
     65    {
     66        wcsncpy_s(details->DeviceID, ARRAYSIZE(details->DeviceID), L"default", _TRUNCATE);
     67        wcsncpy_s(details->DisplayName, ARRAYSIZE(details->DisplayName), L"default", _TRUNCATE);
     68    }
     69    return S_OK;
     70#else
     71    auto operation = DeviceInformation::FindAllAsync(DeviceClass::AudioRender);
     72    while (operation->Status != Windows::Foundation::AsyncStatus::Completed)
     73    {
     74    }
     75 
     76    DeviceInformationCollection^ devices = operation->GetResults();
     77    if (index >= devices->Size)
     78    {
     79        return XAUDIO2_E_INVALID_CALL;
     80    }
     81
     82    DeviceInformation^ d = devices->GetAt(index);
     83    if (details)
     84    {
     85        wcsncpy_s(details->DeviceID, ARRAYSIZE(details->DeviceID), d->Id->Data(), _TRUNCATE);
     86        wcsncpy_s(details->DisplayName, ARRAYSIZE(details->DisplayName), d->Name->Data(), _TRUNCATE);
     87    }
     88    return S_OK;
     89#endif
     90}