562 lines
18 KiB
C
562 lines
18 KiB
C
/**
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* OpenAL cross platform audio library
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* Copyright (C) 2011 by authors.
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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* Or go to http://www.gnu.org/copyleft/lgpl.html
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*/
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#include "config.h"
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#define COBJMACROS
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#define _WIN32_WINNT 0x0500
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#include <stdlib.h>
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#include <stdio.h>
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#include <memory.h>
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#include <mmdeviceapi.h>
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#include <audioclient.h>
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#include <cguid.h>
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#include <mmreg.h>
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#ifndef _WAVEFORMATEXTENSIBLE_
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#include <ks.h>
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#include <ksmedia.h>
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#endif
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#include "alMain.h"
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#include "AL/al.h"
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#include "AL/alc.h"
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DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
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DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, 0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
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#define MONO SPEAKER_FRONT_CENTER
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#define STEREO (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT)
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#define QUAD (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
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#define X5DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
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#define X6DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_CENTER|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
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#define X7DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
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static IMMDeviceEnumerator *Enumerator = NULL;
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typedef struct {
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IMMDevice *mmdev;
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IAudioClient *client;
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volatile int killNow;
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ALvoid *thread;
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} MMDevApiData;
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static const ALCchar mmDevice[] = "WASAPI Default";
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static ALCboolean MakeExtensible(WAVEFORMATEXTENSIBLE *out, const WAVEFORMATEX *in)
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{
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memset(out, 0, sizeof(*out));
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if(in->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
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*out = *(WAVEFORMATEXTENSIBLE*)in;
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else if(in->wFormatTag == WAVE_FORMAT_PCM)
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{
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out->Format = *in;
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out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
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out->Format.cbSize = sizeof(*out) - sizeof(*in);
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if(out->Format.nChannels == 1)
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out->dwChannelMask = MONO;
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else if(out->Format.nChannels == 2)
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out->dwChannelMask = STEREO;
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out->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
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}
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else if(in->wFormatTag == WAVE_FORMAT_IEEE_FLOAT)
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{
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out->Format = *in;
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out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
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out->Format.cbSize = sizeof(*out) - sizeof(*in);
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if(out->Format.nChannels == 1)
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out->dwChannelMask = MONO;
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else if(out->Format.nChannels == 2)
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out->dwChannelMask = STEREO;
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out->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
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}
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else
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{
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AL_PRINT("Unhandled format tag: 0x%04x\n", in->wFormatTag);
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return ALC_FALSE;
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}
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return ALC_TRUE;
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}
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static void *MMDevApiLoad(void)
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{
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if(!Enumerator)
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{
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void *mme = NULL;
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HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
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if(FAILED(hr))
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hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
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if(SUCCEEDED(hr))
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{
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hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &mme);
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if(FAILED(hr))
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CoUninitialize();
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else
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Enumerator = mme;
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}
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}
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return Enumerator;
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}
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static ALuint MMDevApiProc(ALvoid *ptr)
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{
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ALCdevice *device = ptr;
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MMDevApiData *data = device->ExtraData;
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union {
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IAudioRenderClient *iface;
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void *ptr;
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} render;
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UINT32 written, len;
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BYTE *buffer;
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HRESULT hr;
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hr = IAudioClient_GetService(data->client, &IID_IAudioRenderClient, &render.ptr);
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if(FAILED(hr))
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{
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AL_PRINT("Failed to get AudioRenderClient service: 0x%08lx\n", hr);
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aluHandleDisconnect(device);
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return 0;
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}
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SetRTPriority();
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while(!data->killNow)
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{
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hr = IAudioClient_GetCurrentPadding(data->client, &written);
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if(FAILED(hr))
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{
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AL_PRINT("Failed to get padding: 0x%08lx\n", hr);
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aluHandleDisconnect(device);
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break;
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}
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len = device->UpdateSize*device->NumUpdates - written;
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if(len < device->UpdateSize)
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{
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Sleep(10);
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continue;
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}
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len -= len%device->UpdateSize;
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hr = IAudioRenderClient_GetBuffer(render.iface, len, &buffer);
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if(SUCCEEDED(hr))
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{
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aluMixData(device, buffer, len);
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hr = IAudioRenderClient_ReleaseBuffer(render.iface, len, 0);
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}
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if(FAILED(hr))
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{
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AL_PRINT("Failed to buffer data: 0x%08lx\n", hr);
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aluHandleDisconnect(device);
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break;
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}
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}
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IAudioRenderClient_Release(render.iface);
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return 0;
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}
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static ALCboolean MMDevApiOpenPlayback(ALCdevice *device, const ALCchar *deviceName)
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{
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MMDevApiData *data = NULL;
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void *client = NULL;
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HRESULT hr;
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if(!MMDevApiLoad())
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return ALC_FALSE;
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if(!deviceName)
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deviceName = mmDevice;
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else if(strcmp(deviceName, mmDevice) != 0)
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return ALC_FALSE;
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//Initialise requested device
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data = calloc(1, sizeof(MMDevApiData));
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if(!data)
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{
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alcSetError(device, ALC_OUT_OF_MEMORY);
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return ALC_FALSE;
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}
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//MMDevApi Init code
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hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(Enumerator, eRender, eMultimedia, &data->mmdev);
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if(SUCCEEDED(hr))
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hr = IMMDevice_Activate(data->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &client);
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if(FAILED(hr))
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{
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if(data->mmdev)
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IMMDevice_Release(data->mmdev);
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data->mmdev = NULL;
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free(data);
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AL_PRINT("Device init failed: 0x%08lx\n", hr);
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return ALC_FALSE;
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}
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data->client = client;
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device->szDeviceName = strdup(deviceName);
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device->ExtraData = data;
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return ALC_TRUE;
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}
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static void MMDevApiClosePlayback(ALCdevice *device)
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{
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MMDevApiData *data = device->ExtraData;
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IAudioClient_Release(data->client);
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data->client = NULL;
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IMMDevice_Release(data->mmdev);
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data->mmdev = NULL;
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free(data);
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device->ExtraData = NULL;
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}
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static ALCboolean MMDevApiResetPlayback(ALCdevice *device)
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{
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MMDevApiData *data = device->ExtraData;
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WAVEFORMATEXTENSIBLE OutputType;
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WAVEFORMATEX *wfx = NULL;
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REFERENCE_TIME def_per;
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UINT32 buffer_len;
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HRESULT hr;
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hr = IAudioClient_GetMixFormat(data->client, &wfx);
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if(FAILED(hr))
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{
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AL_PRINT("Failed to get mix format: 0x%08lx\n", hr);
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return ALC_FALSE;
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}
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if(!MakeExtensible(&OutputType, wfx))
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{
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CoTaskMemFree(wfx);
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return ALC_FALSE;
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}
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CoTaskMemFree(wfx);
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wfx = NULL;
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if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
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device->Frequency = OutputType.Format.nSamplesPerSec;
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if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
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{
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if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO)
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device->FmtChans = DevFmtMono;
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else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO)
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device->FmtChans = DevFmtStereo;
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else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD)
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device->FmtChans = DevFmtQuad;
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else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1)
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device->FmtChans = DevFmtX51;
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else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1)
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device->FmtChans = DevFmtX61;
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else if(OutputType.Format.nChannels == 8 && OutputType.dwChannelMask == X7DOT1)
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device->FmtChans = DevFmtX71;
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else
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AL_PRINT("Unhandled channel config: %d -- 0x%08x\n", OutputType.Format.nChannels, OutputType.dwChannelMask);
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}
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switch(device->FmtChans)
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{
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case DevFmtMono:
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OutputType.Format.nChannels = 1;
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OutputType.dwChannelMask = MONO;
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break;
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case DevFmtStereo:
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OutputType.Format.nChannels = 2;
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OutputType.dwChannelMask = STEREO;
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break;
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case DevFmtQuad:
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OutputType.Format.nChannels = 4;
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OutputType.dwChannelMask = QUAD;
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break;
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case DevFmtX51:
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OutputType.Format.nChannels = 6;
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OutputType.dwChannelMask = X5DOT1;
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break;
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case DevFmtX61:
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OutputType.Format.nChannels = 7;
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OutputType.dwChannelMask = X6DOT1;
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break;
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case DevFmtX71:
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OutputType.Format.nChannels = 8;
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OutputType.dwChannelMask = X7DOT1;
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break;
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}
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switch(device->FmtType)
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{
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case DevFmtByte:
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device->FmtType = DevFmtUByte;
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/* fall-through */
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case DevFmtUByte:
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OutputType.Format.wBitsPerSample = 8;
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OutputType.Samples.wValidBitsPerSample = 8;
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OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
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break;
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case DevFmtUShort:
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device->FmtType = DevFmtShort;
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/* fall-through */
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case DevFmtShort:
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OutputType.Format.wBitsPerSample = 16;
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OutputType.Samples.wValidBitsPerSample = 16;
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OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
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break;
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case DevFmtFloat:
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OutputType.Format.wBitsPerSample = 32;
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OutputType.Samples.wValidBitsPerSample = 32;
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OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
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break;
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}
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OutputType.Format.nSamplesPerSec = device->Frequency;
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OutputType.Format.nBlockAlign = OutputType.Format.nChannels *
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OutputType.Format.wBitsPerSample / 8;
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OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec *
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OutputType.Format.nBlockAlign;
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hr = IAudioClient_IsFormatSupported(data->client, AUDCLNT_SHAREMODE_SHARED, &OutputType.Format, &wfx);
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if(FAILED(hr))
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hr = IAudioClient_GetMixFormat(data->client, &wfx);
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if(FAILED(hr))
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{
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AL_PRINT("Failed to find a supported format\n");
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return ALC_FALSE;
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}
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if(wfx != NULL)
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{
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if(!MakeExtensible(&OutputType, wfx))
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{
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CoTaskMemFree(wfx);
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return ALC_FALSE;
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}
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CoTaskMemFree(wfx);
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wfx = NULL;
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if(device->Frequency != OutputType.Format.nSamplesPerSec)
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{
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if((device->Flags&DEVICE_FREQUENCY_REQUEST))
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AL_PRINT("Failed to set %dhz, got %dhz instead\n", device->Frequency, OutputType.Format.nSamplesPerSec);
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device->Flags &= ~DEVICE_FREQUENCY_REQUEST;
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device->Frequency = OutputType.Format.nSamplesPerSec;
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}
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if(!((device->FmtChans == DevFmtMono && OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO) ||
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(device->FmtChans == DevFmtStereo && OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO) ||
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(device->FmtChans == DevFmtQuad && OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD) ||
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(device->FmtChans == DevFmtX51 && OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1) ||
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(device->FmtChans == DevFmtX61 && OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1) ||
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(device->FmtChans == DevFmtX71 && OutputType.Format.nChannels == 8 && OutputType.dwChannelMask == X7DOT1)))
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{
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if((device->Flags&DEVICE_CHANNELS_REQUEST))
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AL_PRINT("Failed to set %s, got %d channels (0x%08x) instead\n", DevFmtChannelsString(device->FmtChans), OutputType.Format.nChannels, OutputType.dwChannelMask);
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device->Flags &= ~DEVICE_CHANNELS_REQUEST;
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if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO)
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device->FmtChans = DevFmtMono;
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else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO)
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device->FmtChans = DevFmtStereo;
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else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD)
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device->FmtChans = DevFmtQuad;
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else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1)
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device->FmtChans = DevFmtX51;
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else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1)
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device->FmtChans = DevFmtX61;
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else if(OutputType.Format.nChannels == 8 && OutputType.dwChannelMask == X7DOT1)
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device->FmtChans = DevFmtX71;
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else
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{
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AL_PRINT("Unhandled extensible channels: %d -- 0x%08x\n", OutputType.Format.nChannels, OutputType.dwChannelMask);
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device->FmtChans = DevFmtStereo;
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OutputType.Format.nChannels = 2;
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OutputType.dwChannelMask = STEREO;
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}
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}
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if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))
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{
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if(OutputType.Samples.wValidBitsPerSample == 0)
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OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
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if(OutputType.Samples.wValidBitsPerSample != OutputType.Format.wBitsPerSample ||
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!((device->FmtType == DevFmtUByte && OutputType.Format.wBitsPerSample == 8) ||
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(device->FmtType == DevFmtShort && OutputType.Format.wBitsPerSample == 16)))
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{
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AL_PRINT("Failed to set %s, got %d/%d-bit instead\n", DevFmtTypeString(device->FmtType), OutputType.Samples.wValidBitsPerSample, OutputType.Format.wBitsPerSample);
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if(OutputType.Format.wBitsPerSample == 8)
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device->FmtType = DevFmtUByte;
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else if(OutputType.Format.wBitsPerSample == 16)
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device->FmtType = DevFmtShort;
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else
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{
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device->FmtType = DevFmtShort;
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OutputType.Format.wBitsPerSample = 16;
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}
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OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
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}
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}
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else if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))
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{
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if(OutputType.Samples.wValidBitsPerSample == 0)
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OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
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if(OutputType.Samples.wValidBitsPerSample != OutputType.Format.wBitsPerSample ||
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!((device->FmtType == DevFmtFloat && OutputType.Format.wBitsPerSample == 32)))
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{
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AL_PRINT("Failed to set %s, got %d/%d-bit instead\n", DevFmtTypeString(device->FmtType), OutputType.Samples.wValidBitsPerSample, OutputType.Format.wBitsPerSample);
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if(OutputType.Format.wBitsPerSample != 32)
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{
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device->FmtType = DevFmtFloat;
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OutputType.Format.wBitsPerSample = 32;
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}
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OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
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}
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}
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else
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{
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AL_PRINT("Unhandled format sub-type\n");
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device->FmtType = DevFmtShort;
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OutputType.Format.wBitsPerSample = 16;
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OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
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}
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}
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SetDefaultWFXChannelOrder(device);
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hr = IAudioClient_Initialize(data->client, AUDCLNT_SHAREMODE_SHARED, 0,
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(ALuint64)device->UpdateSize * 10000000 /
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device->Frequency * device->NumUpdates,
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0, &OutputType.Format, NULL);
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if(FAILED(hr))
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{
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AL_PRINT("Failed to initialize audio client: 0x%08lx\n", hr);
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return ALC_FALSE;
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|
}
|
|
|
|
hr = IAudioClient_GetDevicePeriod(data->client, &def_per, NULL);
|
|
if(SUCCEEDED(hr))
|
|
hr = IAudioClient_GetBufferSize(data->client, &buffer_len);
|
|
if(FAILED(hr))
|
|
{
|
|
AL_PRINT("Failed to get audio buffer info: 0x%08lx\n", hr);
|
|
return ALC_FALSE;
|
|
}
|
|
|
|
device->NumUpdates = (ALuint)((REFERENCE_TIME)buffer_len * 10000000 /
|
|
device->Frequency / def_per);
|
|
if(device->NumUpdates <= 1)
|
|
{
|
|
device->NumUpdates = 1;
|
|
AL_PRINT("Audio client returned default_period > buffer_len/2; expect break up\n");
|
|
}
|
|
device->UpdateSize = buffer_len / device->NumUpdates;
|
|
|
|
hr = IAudioClient_Start(data->client);
|
|
if(FAILED(hr))
|
|
{
|
|
AL_PRINT("Failed to start audio client: 0x%08lx\n", hr);
|
|
return ALC_FALSE;
|
|
}
|
|
|
|
data->thread = StartThread(MMDevApiProc, device);
|
|
if(!data->thread)
|
|
{
|
|
IAudioClient_Stop(data->client);
|
|
AL_PRINT("Failed to start thread\n");
|
|
return ALC_FALSE;
|
|
}
|
|
|
|
return ALC_TRUE;
|
|
}
|
|
|
|
static void MMDevApiStopPlayback(ALCdevice *device)
|
|
{
|
|
MMDevApiData *data = device->ExtraData;
|
|
|
|
if(!data->thread)
|
|
return;
|
|
|
|
data->killNow = 1;
|
|
StopThread(data->thread);
|
|
data->thread = NULL;
|
|
|
|
data->killNow = 0;
|
|
|
|
IAudioClient_Stop(data->client);
|
|
}
|
|
|
|
|
|
static ALCboolean MMDevApiOpenCapture(ALCdevice *device, const ALCchar *deviceName)
|
|
{
|
|
(void)device;
|
|
(void)deviceName;
|
|
return ALC_FALSE;
|
|
}
|
|
|
|
|
|
static const BackendFuncs MMDevApiFuncs = {
|
|
MMDevApiOpenPlayback,
|
|
MMDevApiClosePlayback,
|
|
MMDevApiResetPlayback,
|
|
MMDevApiStopPlayback,
|
|
MMDevApiOpenCapture,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
|
|
void alcMMDevApiInit(BackendFuncs *FuncList)
|
|
{
|
|
*FuncList = MMDevApiFuncs;
|
|
}
|
|
|
|
void alcMMDevApiDeinit(void)
|
|
{
|
|
if(Enumerator)
|
|
{
|
|
IMMDeviceEnumerator_Release(Enumerator);
|
|
Enumerator = NULL;
|
|
CoUninitialize();
|
|
}
|
|
}
|
|
|
|
void alcMMDevApiProbe(int type)
|
|
{
|
|
if(!MMDevApiLoad()) return;
|
|
|
|
if(type == DEVICE_PROBE)
|
|
AppendDeviceList(mmDevice);
|
|
else if(type == ALL_DEVICE_PROBE)
|
|
AppendAllDeviceList(mmDevice);
|
|
}
|