1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/Alc/backends/mmdevapi.c	Tue Oct 25 13:02:31 2011 -0700
     1.3 @@ -0,0 +1,775 @@
     1.4 +/**
     1.5 + * OpenAL cross platform audio library
     1.6 + * Copyright (C) 2011 by authors.
     1.7 + * This library is free software; you can redistribute it and/or
     1.8 + *  modify it under the terms of the GNU Library General Public
     1.9 + *  License as published by the Free Software Foundation; either
    1.10 + *  version 2 of the License, or (at your option) any later version.
    1.11 + *
    1.12 + * This library is distributed in the hope that it will be useful,
    1.13 + *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.14 + *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    1.15 + *  Library General Public License for more details.
    1.16 + *
    1.17 + * You should have received a copy of the GNU Library General Public
    1.18 + *  License along with this library; if not, write to the
    1.19 + *  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    1.20 + *  Boston, MA  02111-1307, USA.
    1.21 + * Or go to http://www.gnu.org/copyleft/lgpl.html
    1.22 + */
    1.23 +
    1.24 +#include "config.h"
    1.25 +
    1.26 +#define COBJMACROS
    1.27 +#define _WIN32_WINNT 0x0500
    1.28 +#include <stdlib.h>
    1.29 +#include <stdio.h>
    1.30 +#include <memory.h>
    1.31 +
    1.32 +#include <mmdeviceapi.h>
    1.33 +#include <audioclient.h>
    1.34 +#include <cguid.h>
    1.35 +#include <mmreg.h>
    1.36 +#ifndef _WAVEFORMATEXTENSIBLE_
    1.37 +#include <ks.h>
    1.38 +#include <ksmedia.h>
    1.39 +#endif
    1.40 +
    1.41 +#include "alMain.h"
    1.42 +#include "AL/al.h"
    1.43 +#include "AL/alc.h"
    1.44 +
    1.45 +
    1.46 +DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
    1.47 +DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, 0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
    1.48 +
    1.49 +#define MONO SPEAKER_FRONT_CENTER
    1.50 +#define STEREO (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT)
    1.51 +#define QUAD (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
    1.52 +#define X5DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
    1.53 +#define X5DOT1SIDE (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
    1.54 +#define X6DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_CENTER|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
    1.55 +#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)
    1.56 +
    1.57 +
    1.58 +typedef struct {
    1.59 +    IMMDevice *mmdev;
    1.60 +    IAudioClient *client;
    1.61 +    HANDLE hNotifyEvent;
    1.62 +
    1.63 +    HANDLE MsgEvent;
    1.64 +
    1.65 +    volatile int killNow;
    1.66 +    ALvoid *thread;
    1.67 +} MMDevApiData;
    1.68 +
    1.69 +
    1.70 +static const ALCchar mmDevice[] = "WASAPI Default";
    1.71 +
    1.72 +
    1.73 +static HANDLE ThreadHdl;
    1.74 +static DWORD ThreadID;
    1.75 +
    1.76 +typedef struct {
    1.77 +    HANDLE FinishedEvt;
    1.78 +    HRESULT result;
    1.79 +} ThreadRequest;
    1.80 +
    1.81 +#define WM_USER_OpenDevice  (WM_USER+0)
    1.82 +#define WM_USER_ResetDevice (WM_USER+1)
    1.83 +#define WM_USER_StopDevice  (WM_USER+2)
    1.84 +#define WM_USER_CloseDevice (WM_USER+3)
    1.85 +
    1.86 +static HRESULT WaitForResponse(ThreadRequest *req)
    1.87 +{
    1.88 +    if(WaitForSingleObject(req->FinishedEvt, INFINITE) == WAIT_OBJECT_0)
    1.89 +        return req->result;
    1.90 +    ERR("Message response error: %lu\n", GetLastError());
    1.91 +    return E_FAIL;
    1.92 +}
    1.93 +
    1.94 +
    1.95 +static ALuint MMDevApiProc(ALvoid *ptr)
    1.96 +{
    1.97 +    ALCdevice *device = ptr;
    1.98 +    MMDevApiData *data = device->ExtraData;
    1.99 +    union {
   1.100 +        IAudioRenderClient *iface;
   1.101 +        void *ptr;
   1.102 +    } render;
   1.103 +    UINT32 written, len;
   1.104 +    BYTE *buffer;
   1.105 +    HRESULT hr;
   1.106 +
   1.107 +    hr = CoInitialize(NULL);
   1.108 +    if(FAILED(hr))
   1.109 +    {
   1.110 +        ERR("CoInitialize(NULL) failed: 0x%08lx\n", hr);
   1.111 +        aluHandleDisconnect(device);
   1.112 +        return 0;
   1.113 +    }
   1.114 +
   1.115 +    hr = IAudioClient_GetService(data->client, &IID_IAudioRenderClient, &render.ptr);
   1.116 +    if(FAILED(hr))
   1.117 +    {
   1.118 +        ERR("Failed to get AudioRenderClient service: 0x%08lx\n", hr);
   1.119 +        aluHandleDisconnect(device);
   1.120 +        return 0;
   1.121 +    }
   1.122 +
   1.123 +    SetRTPriority();
   1.124 +
   1.125 +    while(!data->killNow)
   1.126 +    {
   1.127 +        hr = IAudioClient_GetCurrentPadding(data->client, &written);
   1.128 +        if(FAILED(hr))
   1.129 +        {
   1.130 +            ERR("Failed to get padding: 0x%08lx\n", hr);
   1.131 +            aluHandleDisconnect(device);
   1.132 +            break;
   1.133 +        }
   1.134 +
   1.135 +        len = device->UpdateSize*device->NumUpdates - written;
   1.136 +        if(len < device->UpdateSize)
   1.137 +        {
   1.138 +            DWORD res;
   1.139 +            res = WaitForSingleObjectEx(data->hNotifyEvent, 2000, FALSE);
   1.140 +            if(res != WAIT_OBJECT_0)
   1.141 +                ERR("WaitForSingleObjectEx error: 0x%lx\n", res);
   1.142 +            continue;
   1.143 +        }
   1.144 +        len -= len%device->UpdateSize;
   1.145 +
   1.146 +        hr = IAudioRenderClient_GetBuffer(render.iface, len, &buffer);
   1.147 +        if(SUCCEEDED(hr))
   1.148 +        {
   1.149 +            aluMixData(device, buffer, len);
   1.150 +            hr = IAudioRenderClient_ReleaseBuffer(render.iface, len, 0);
   1.151 +        }
   1.152 +        if(FAILED(hr))
   1.153 +        {
   1.154 +            ERR("Failed to buffer data: 0x%08lx\n", hr);
   1.155 +            aluHandleDisconnect(device);
   1.156 +            break;
   1.157 +        }
   1.158 +    }
   1.159 +
   1.160 +    IAudioRenderClient_Release(render.iface);
   1.161 +
   1.162 +    CoUninitialize();
   1.163 +    return 0;
   1.164 +}
   1.165 +
   1.166 +
   1.167 +static ALCboolean MakeExtensible(WAVEFORMATEXTENSIBLE *out, const WAVEFORMATEX *in)
   1.168 +{
   1.169 +    memset(out, 0, sizeof(*out));
   1.170 +    if(in->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
   1.171 +        *out = *(WAVEFORMATEXTENSIBLE*)in;
   1.172 +    else if(in->wFormatTag == WAVE_FORMAT_PCM)
   1.173 +    {
   1.174 +        out->Format = *in;
   1.175 +        out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
   1.176 +        out->Format.cbSize = sizeof(*out) - sizeof(*in);
   1.177 +        if(out->Format.nChannels == 1)
   1.178 +            out->dwChannelMask = MONO;
   1.179 +        else if(out->Format.nChannels == 2)
   1.180 +            out->dwChannelMask = STEREO;
   1.181 +        else
   1.182 +            ERR("Unhandled PCM channel count: %d\n", out->Format.nChannels);
   1.183 +        out->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
   1.184 +    }
   1.185 +    else if(in->wFormatTag == WAVE_FORMAT_IEEE_FLOAT)
   1.186 +    {
   1.187 +        out->Format = *in;
   1.188 +        out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
   1.189 +        out->Format.cbSize = sizeof(*out) - sizeof(*in);
   1.190 +        if(out->Format.nChannels == 1)
   1.191 +            out->dwChannelMask = MONO;
   1.192 +        else if(out->Format.nChannels == 2)
   1.193 +            out->dwChannelMask = STEREO;
   1.194 +        else
   1.195 +            ERR("Unhandled IEEE float channel count: %d\n", out->Format.nChannels);
   1.196 +        out->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
   1.197 +    }
   1.198 +    else
   1.199 +    {
   1.200 +        ERR("Unhandled format tag: 0x%04x\n", in->wFormatTag);
   1.201 +        return ALC_FALSE;
   1.202 +    }
   1.203 +    return ALC_TRUE;
   1.204 +}
   1.205 +
   1.206 +static HRESULT DoReset(ALCdevice *device)
   1.207 +{
   1.208 +    MMDevApiData *data = device->ExtraData;
   1.209 +    WAVEFORMATEXTENSIBLE OutputType;
   1.210 +    WAVEFORMATEX *wfx = NULL;
   1.211 +    REFERENCE_TIME min_per;
   1.212 +    UINT32 buffer_len, min_len;
   1.213 +    HRESULT hr;
   1.214 +
   1.215 +    hr = IAudioClient_GetMixFormat(data->client, &wfx);
   1.216 +    if(FAILED(hr))
   1.217 +    {
   1.218 +        ERR("Failed to get mix format: 0x%08lx\n", hr);
   1.219 +        return hr;
   1.220 +    }
   1.221 +
   1.222 +    if(!MakeExtensible(&OutputType, wfx))
   1.223 +    {
   1.224 +        CoTaskMemFree(wfx);
   1.225 +        return E_FAIL;
   1.226 +    }
   1.227 +    CoTaskMemFree(wfx);
   1.228 +    wfx = NULL;
   1.229 +
   1.230 +    if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
   1.231 +        device->Frequency = OutputType.Format.nSamplesPerSec;
   1.232 +    if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
   1.233 +    {
   1.234 +        if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO)
   1.235 +            device->FmtChans = DevFmtMono;
   1.236 +        else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO)
   1.237 +            device->FmtChans = DevFmtStereo;
   1.238 +        else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD)
   1.239 +            device->FmtChans = DevFmtQuad;
   1.240 +        else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1)
   1.241 +            device->FmtChans = DevFmtX51;
   1.242 +        else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1SIDE)
   1.243 +            device->FmtChans = DevFmtX51Side;
   1.244 +        else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1)
   1.245 +            device->FmtChans = DevFmtX61;
   1.246 +        else if(OutputType.Format.nChannels == 8 && OutputType.dwChannelMask == X7DOT1)
   1.247 +            device->FmtChans = DevFmtX71;
   1.248 +        else
   1.249 +            ERR("Unhandled channel config: %d -- 0x%08lx\n", OutputType.Format.nChannels, OutputType.dwChannelMask);
   1.250 +    }
   1.251 +
   1.252 +    switch(device->FmtChans)
   1.253 +    {
   1.254 +        case DevFmtMono:
   1.255 +            OutputType.Format.nChannels = 1;
   1.256 +            OutputType.dwChannelMask = MONO;
   1.257 +            break;
   1.258 +        case DevFmtStereo:
   1.259 +            OutputType.Format.nChannels = 2;
   1.260 +            OutputType.dwChannelMask = STEREO;
   1.261 +            break;
   1.262 +        case DevFmtQuad:
   1.263 +            OutputType.Format.nChannels = 4;
   1.264 +            OutputType.dwChannelMask = QUAD;
   1.265 +            break;
   1.266 +        case DevFmtX51:
   1.267 +            OutputType.Format.nChannels = 6;
   1.268 +            OutputType.dwChannelMask = X5DOT1;
   1.269 +            break;
   1.270 +        case DevFmtX51Side:
   1.271 +            OutputType.Format.nChannels = 6;
   1.272 +            OutputType.dwChannelMask = X5DOT1SIDE;
   1.273 +            break;
   1.274 +        case DevFmtX61:
   1.275 +            OutputType.Format.nChannels = 7;
   1.276 +            OutputType.dwChannelMask = X6DOT1;
   1.277 +            break;
   1.278 +        case DevFmtX71:
   1.279 +            OutputType.Format.nChannels = 8;
   1.280 +            OutputType.dwChannelMask = X7DOT1;
   1.281 +            break;
   1.282 +    }
   1.283 +    switch(device->FmtType)
   1.284 +    {
   1.285 +        case DevFmtByte:
   1.286 +            device->FmtType = DevFmtUByte;
   1.287 +            /* fall-through */
   1.288 +        case DevFmtUByte:
   1.289 +            OutputType.Format.wBitsPerSample = 8;
   1.290 +            OutputType.Samples.wValidBitsPerSample = 8;
   1.291 +            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
   1.292 +            break;
   1.293 +        case DevFmtUShort:
   1.294 +            device->FmtType = DevFmtShort;
   1.295 +            /* fall-through */
   1.296 +        case DevFmtShort:
   1.297 +            OutputType.Format.wBitsPerSample = 16;
   1.298 +            OutputType.Samples.wValidBitsPerSample = 16;
   1.299 +            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
   1.300 +            break;
   1.301 +        case DevFmtFloat:
   1.302 +            OutputType.Format.wBitsPerSample = 32;
   1.303 +            OutputType.Samples.wValidBitsPerSample = 32;
   1.304 +            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
   1.305 +            break;
   1.306 +    }
   1.307 +    OutputType.Format.nSamplesPerSec = device->Frequency;
   1.308 +
   1.309 +    OutputType.Format.nBlockAlign = OutputType.Format.nChannels *
   1.310 +                                    OutputType.Format.wBitsPerSample / 8;
   1.311 +    OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec *
   1.312 +                                        OutputType.Format.nBlockAlign;
   1.313 +
   1.314 +    hr = IAudioClient_IsFormatSupported(data->client, AUDCLNT_SHAREMODE_SHARED, &OutputType.Format, &wfx);
   1.315 +    if(FAILED(hr))
   1.316 +    {
   1.317 +        ERR("Failed to check format support: 0x%08lx\n", hr);
   1.318 +        hr = IAudioClient_GetMixFormat(data->client, &wfx);
   1.319 +    }
   1.320 +    if(FAILED(hr))
   1.321 +    {
   1.322 +        ERR("Failed to find a supported format: 0x%08lx\n", hr);
   1.323 +        return hr;
   1.324 +    }
   1.325 +
   1.326 +    if(wfx != NULL)
   1.327 +    {
   1.328 +        if(!MakeExtensible(&OutputType, wfx))
   1.329 +        {
   1.330 +            CoTaskMemFree(wfx);
   1.331 +            return E_FAIL;
   1.332 +        }
   1.333 +        CoTaskMemFree(wfx);
   1.334 +        wfx = NULL;
   1.335 +
   1.336 +        if(device->Frequency != OutputType.Format.nSamplesPerSec)
   1.337 +        {
   1.338 +            if((device->Flags&DEVICE_FREQUENCY_REQUEST))
   1.339 +                ERR("Failed to set %dhz, got %ldhz instead\n", device->Frequency, OutputType.Format.nSamplesPerSec);
   1.340 +            device->Flags &= ~DEVICE_FREQUENCY_REQUEST;
   1.341 +            device->Frequency = OutputType.Format.nSamplesPerSec;
   1.342 +        }
   1.343 +
   1.344 +        if(!((device->FmtChans == DevFmtMono && OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO) ||
   1.345 +             (device->FmtChans == DevFmtStereo && OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO) ||
   1.346 +             (device->FmtChans == DevFmtQuad && OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD) ||
   1.347 +             (device->FmtChans == DevFmtX51 && OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1) ||
   1.348 +             (device->FmtChans == DevFmtX51Side && OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1SIDE) ||
   1.349 +             (device->FmtChans == DevFmtX61 && OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1) ||
   1.350 +             (device->FmtChans == DevFmtX71 && OutputType.Format.nChannels == 8 && OutputType.dwChannelMask == X7DOT1)))
   1.351 +        {
   1.352 +            if((device->Flags&DEVICE_CHANNELS_REQUEST))
   1.353 +                ERR("Failed to set %s, got %d channels (0x%08lx) instead\n", DevFmtChannelsString(device->FmtChans), OutputType.Format.nChannels, OutputType.dwChannelMask);
   1.354 +            device->Flags &= ~DEVICE_CHANNELS_REQUEST;
   1.355 +
   1.356 +            if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO)
   1.357 +                device->FmtChans = DevFmtMono;
   1.358 +            else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO)
   1.359 +                device->FmtChans = DevFmtStereo;
   1.360 +            else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD)
   1.361 +                device->FmtChans = DevFmtQuad;
   1.362 +            else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1)
   1.363 +                device->FmtChans = DevFmtX51;
   1.364 +            else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1SIDE)
   1.365 +                device->FmtChans = DevFmtX51Side;
   1.366 +            else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1)
   1.367 +                device->FmtChans = DevFmtX61;
   1.368 +            else if(OutputType.Format.nChannels == 8 && OutputType.dwChannelMask == X7DOT1)
   1.369 +                device->FmtChans = DevFmtX71;
   1.370 +            else
   1.371 +            {
   1.372 +                ERR("Unhandled extensible channels: %d -- 0x%08lx\n", OutputType.Format.nChannels, OutputType.dwChannelMask);
   1.373 +                device->FmtChans = DevFmtStereo;
   1.374 +                OutputType.Format.nChannels = 2;
   1.375 +                OutputType.dwChannelMask = STEREO;
   1.376 +            }
   1.377 +        }
   1.378 +
   1.379 +        if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))
   1.380 +        {
   1.381 +            if(OutputType.Samples.wValidBitsPerSample == 0)
   1.382 +                OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
   1.383 +            if(OutputType.Samples.wValidBitsPerSample != OutputType.Format.wBitsPerSample ||
   1.384 +               !((device->FmtType == DevFmtUByte && OutputType.Format.wBitsPerSample == 8) ||
   1.385 +                 (device->FmtType == DevFmtShort && OutputType.Format.wBitsPerSample == 16)))
   1.386 +            {
   1.387 +                ERR("Failed to set %s samples, got %d/%d-bit instead\n", DevFmtTypeString(device->FmtType), OutputType.Samples.wValidBitsPerSample, OutputType.Format.wBitsPerSample);
   1.388 +                if(OutputType.Format.wBitsPerSample == 8)
   1.389 +                    device->FmtType = DevFmtUByte;
   1.390 +                else if(OutputType.Format.wBitsPerSample == 16)
   1.391 +                    device->FmtType = DevFmtShort;
   1.392 +                else
   1.393 +                {
   1.394 +                    device->FmtType = DevFmtShort;
   1.395 +                    OutputType.Format.wBitsPerSample = 16;
   1.396 +                }
   1.397 +                OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
   1.398 +            }
   1.399 +        }
   1.400 +        else if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))
   1.401 +        {
   1.402 +            if(OutputType.Samples.wValidBitsPerSample == 0)
   1.403 +                OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
   1.404 +            if(OutputType.Samples.wValidBitsPerSample != OutputType.Format.wBitsPerSample ||
   1.405 +               !((device->FmtType == DevFmtFloat && OutputType.Format.wBitsPerSample == 32)))
   1.406 +            {
   1.407 +                ERR("Failed to set %s samples, got %d/%d-bit instead\n", DevFmtTypeString(device->FmtType), OutputType.Samples.wValidBitsPerSample, OutputType.Format.wBitsPerSample);
   1.408 +                if(OutputType.Format.wBitsPerSample != 32)
   1.409 +                {
   1.410 +                    device->FmtType = DevFmtFloat;
   1.411 +                    OutputType.Format.wBitsPerSample = 32;
   1.412 +                }
   1.413 +                OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
   1.414 +            }
   1.415 +        }
   1.416 +        else
   1.417 +        {
   1.418 +            ERR("Unhandled format sub-type\n");
   1.419 +            device->FmtType = DevFmtShort;
   1.420 +            OutputType.Format.wBitsPerSample = 16;
   1.421 +            OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
   1.422 +            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
   1.423 +        }
   1.424 +    }
   1.425 +
   1.426 +    SetDefaultWFXChannelOrder(device);
   1.427 +
   1.428 +    hr = IAudioClient_GetDevicePeriod(data->client, &min_per, NULL);
   1.429 +    if(SUCCEEDED(hr))
   1.430 +    {
   1.431 +        min_len = (min_per*device->Frequency + 10000000-1) / 10000000;
   1.432 +        if(min_len < device->UpdateSize)
   1.433 +            min_len *= (device->UpdateSize + min_len/2)/min_len;
   1.434 +
   1.435 +        device->NumUpdates = (device->NumUpdates*device->UpdateSize + min_len/2) /
   1.436 +                             min_len;
   1.437 +        device->NumUpdates = maxu(device->NumUpdates, 2);
   1.438 +        device->UpdateSize = min_len;
   1.439 +
   1.440 +        hr = IAudioClient_Initialize(data->client, AUDCLNT_SHAREMODE_SHARED,
   1.441 +                                     AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
   1.442 +                                     ((REFERENCE_TIME)device->UpdateSize*
   1.443 +                                      device->NumUpdates*10000000 +
   1.444 +                                      device->Frequency-1) / device->Frequency,
   1.445 +                                     0, &OutputType.Format, NULL);
   1.446 +    }
   1.447 +    if(FAILED(hr))
   1.448 +    {
   1.449 +        ERR("Failed to initialize audio client: 0x%08lx\n", hr);
   1.450 +        return hr;
   1.451 +    }
   1.452 +
   1.453 +    hr = IAudioClient_GetBufferSize(data->client, &buffer_len);
   1.454 +    if(FAILED(hr))
   1.455 +    {
   1.456 +        ERR("Failed to get audio buffer info: 0x%08lx\n", hr);
   1.457 +        return hr;
   1.458 +    }
   1.459 +
   1.460 +    device->NumUpdates = buffer_len / device->UpdateSize;
   1.461 +    if(device->NumUpdates <= 1)
   1.462 +    {
   1.463 +        device->NumUpdates = 1;
   1.464 +        ERR("Audio client returned buffer_len < period*2; expect break up\n");
   1.465 +    }
   1.466 +
   1.467 +    ResetEvent(data->hNotifyEvent);
   1.468 +    hr = IAudioClient_SetEventHandle(data->client, data->hNotifyEvent);
   1.469 +    if(SUCCEEDED(hr))
   1.470 +        hr = IAudioClient_Start(data->client);
   1.471 +    if(FAILED(hr))
   1.472 +    {
   1.473 +        ERR("Failed to start audio client: 0x%08lx\n", hr);
   1.474 +        return hr;
   1.475 +    }
   1.476 +
   1.477 +    data->thread = StartThread(MMDevApiProc, device);
   1.478 +    if(!data->thread)
   1.479 +    {
   1.480 +        IAudioClient_Stop(data->client);
   1.481 +        ERR("Failed to start thread\n");
   1.482 +        return E_FAIL;
   1.483 +    }
   1.484 +
   1.485 +    return hr;
   1.486 +}
   1.487 +
   1.488 +
   1.489 +static DWORD CALLBACK MessageProc(void *ptr)
   1.490 +{
   1.491 +    ThreadRequest *req = ptr;
   1.492 +    IMMDeviceEnumerator *Enumerator;
   1.493 +    MMDevApiData *data;
   1.494 +    ALCdevice *device;
   1.495 +    HRESULT hr;
   1.496 +    MSG msg;
   1.497 +
   1.498 +    TRACE("Starting message thread\n");
   1.499 +
   1.500 +    hr = CoInitialize(NULL);
   1.501 +    if(FAILED(hr))
   1.502 +    {
   1.503 +        WARN("Failed to initialize COM: 0x%08lx\n", hr);
   1.504 +        req->result = hr;
   1.505 +        SetEvent(req->FinishedEvt);
   1.506 +        return 0;
   1.507 +    }
   1.508 +
   1.509 +    hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
   1.510 +    if(FAILED(hr))
   1.511 +    {
   1.512 +        WARN("Failed to create IMMDeviceEnumerator instance: 0x%08lx\n", hr);
   1.513 +        CoUninitialize();
   1.514 +        req->result = hr;
   1.515 +        SetEvent(req->FinishedEvt);
   1.516 +        return 0;
   1.517 +    }
   1.518 +    Enumerator = ptr;
   1.519 +    IMMDeviceEnumerator_Release(Enumerator);
   1.520 +    Enumerator = NULL;
   1.521 +
   1.522 +    req->result = S_OK;
   1.523 +    SetEvent(req->FinishedEvt);
   1.524 +
   1.525 +    TRACE("Starting message loop\n");
   1.526 +    while(GetMessage(&msg, NULL, 0, 0))
   1.527 +    {
   1.528 +        TRACE("Got message %u\n", msg.message);
   1.529 +        switch(msg.message)
   1.530 +        {
   1.531 +        case WM_USER_OpenDevice:
   1.532 +            req = (ThreadRequest*)msg.wParam;
   1.533 +            device = (ALCdevice*)msg.lParam;
   1.534 +            data = device->ExtraData;
   1.535 +
   1.536 +            hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
   1.537 +            if(SUCCEEDED(hr))
   1.538 +            {
   1.539 +                Enumerator = ptr;
   1.540 +                hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(Enumerator, eRender, eMultimedia, &data->mmdev);
   1.541 +                IMMDeviceEnumerator_Release(Enumerator);
   1.542 +                Enumerator = NULL;
   1.543 +            }
   1.544 +            if(SUCCEEDED(hr))
   1.545 +                hr = IMMDevice_Activate(data->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr);
   1.546 +            if(SUCCEEDED(hr))
   1.547 +                data->client = ptr;
   1.548 +
   1.549 +            if(FAILED(hr))
   1.550 +            {
   1.551 +                if(data->mmdev)
   1.552 +                    IMMDevice_Release(data->mmdev);
   1.553 +                data->mmdev = NULL;
   1.554 +            }
   1.555 +
   1.556 +            req->result = hr;
   1.557 +            SetEvent(req->FinishedEvt);
   1.558 +            continue;
   1.559 +
   1.560 +        case WM_USER_ResetDevice:
   1.561 +            req = (ThreadRequest*)msg.wParam;
   1.562 +            device = (ALCdevice*)msg.lParam;
   1.563 +
   1.564 +            req->result = DoReset(device);
   1.565 +            SetEvent(req->FinishedEvt);
   1.566 +            continue;
   1.567 +
   1.568 +        case WM_USER_StopDevice:
   1.569 +            req = (ThreadRequest*)msg.wParam;
   1.570 +            device = (ALCdevice*)msg.lParam;
   1.571 +            data = device->ExtraData;
   1.572 +
   1.573 +            if(data->thread)
   1.574 +            {
   1.575 +                data->killNow = 1;
   1.576 +                StopThread(data->thread);
   1.577 +                data->thread = NULL;
   1.578 +
   1.579 +                data->killNow = 0;
   1.580 +
   1.581 +                IAudioClient_Stop(data->client);
   1.582 +            }
   1.583 +
   1.584 +            req->result = S_OK;
   1.585 +            SetEvent(req->FinishedEvt);
   1.586 +            continue;
   1.587 +
   1.588 +        case WM_USER_CloseDevice:
   1.589 +            req = (ThreadRequest*)msg.wParam;
   1.590 +            device = (ALCdevice*)msg.lParam;
   1.591 +            data = device->ExtraData;
   1.592 +
   1.593 +            IAudioClient_Release(data->client);
   1.594 +            data->client = NULL;
   1.595 +
   1.596 +            IMMDevice_Release(data->mmdev);
   1.597 +            data->mmdev = NULL;
   1.598 +
   1.599 +            req->result = S_OK;
   1.600 +            SetEvent(req->FinishedEvt);
   1.601 +            continue;
   1.602 +
   1.603 +        default:
   1.604 +            ERR("Unexpected message: %u\n", msg.message);
   1.605 +            continue;
   1.606 +        }
   1.607 +    }
   1.608 +    TRACE("Message loop finished\n");
   1.609 +
   1.610 +    CoUninitialize();
   1.611 +    return 0;
   1.612 +}
   1.613 +
   1.614 +
   1.615 +static BOOL MMDevApiLoad(void)
   1.616 +{
   1.617 +    static HRESULT InitResult;
   1.618 +    if(!ThreadHdl)
   1.619 +    {
   1.620 +        ThreadRequest req;
   1.621 +        InitResult = E_FAIL;
   1.622 +
   1.623 +        req.FinishedEvt = CreateEvent(NULL, FALSE, FALSE, NULL);
   1.624 +        if(req.FinishedEvt == NULL)
   1.625 +            ERR("Failed to create event: %lu\n", GetLastError());
   1.626 +        else
   1.627 +        {
   1.628 +            ThreadHdl = CreateThread(NULL, 0, MessageProc, &req, 0, &ThreadID);
   1.629 +            if(ThreadHdl != NULL)
   1.630 +                InitResult = WaitForResponse(&req);
   1.631 +            CloseHandle(req.FinishedEvt);
   1.632 +        }
   1.633 +    }
   1.634 +    return SUCCEEDED(InitResult);
   1.635 +}
   1.636 +
   1.637 +
   1.638 +static ALCboolean MMDevApiOpenPlayback(ALCdevice *device, const ALCchar *deviceName)
   1.639 +{
   1.640 +    MMDevApiData *data = NULL;
   1.641 +    HRESULT hr;
   1.642 +
   1.643 +    if(!deviceName)
   1.644 +        deviceName = mmDevice;
   1.645 +    else if(strcmp(deviceName, mmDevice) != 0)
   1.646 +        return ALC_FALSE;
   1.647 +
   1.648 +    //Initialise requested device
   1.649 +    data = calloc(1, sizeof(MMDevApiData));
   1.650 +    if(!data)
   1.651 +    {
   1.652 +        alcSetError(device, ALC_OUT_OF_MEMORY);
   1.653 +        return ALC_FALSE;
   1.654 +    }
   1.655 +    device->ExtraData = data;
   1.656 +
   1.657 +    hr = S_OK;
   1.658 +    data->hNotifyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
   1.659 +    data->MsgEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
   1.660 +    if(data->hNotifyEvent == NULL || data->MsgEvent == NULL)
   1.661 +        hr = E_FAIL;
   1.662 +
   1.663 +    if(SUCCEEDED(hr))
   1.664 +    {
   1.665 +        ThreadRequest req = { data->MsgEvent, 0 };
   1.666 +
   1.667 +        hr = E_FAIL;
   1.668 +        if(PostThreadMessage(ThreadID, WM_USER_OpenDevice, (WPARAM)&req, (LPARAM)device))
   1.669 +            hr = WaitForResponse(&req);
   1.670 +    }
   1.671 +
   1.672 +    if(FAILED(hr))
   1.673 +    {
   1.674 +        if(data->hNotifyEvent != NULL)
   1.675 +            CloseHandle(data->hNotifyEvent);
   1.676 +        data->hNotifyEvent = NULL;
   1.677 +        if(data->MsgEvent != NULL)
   1.678 +            CloseHandle(data->MsgEvent);
   1.679 +        data->MsgEvent = NULL;
   1.680 +
   1.681 +        free(data);
   1.682 +        device->ExtraData = NULL;
   1.683 +
   1.684 +        ERR("Device init failed: 0x%08lx\n", hr);
   1.685 +        return ALC_FALSE;
   1.686 +    }
   1.687 +
   1.688 +    device->szDeviceName = strdup(deviceName);
   1.689 +    return ALC_TRUE;
   1.690 +}
   1.691 +
   1.692 +static void MMDevApiClosePlayback(ALCdevice *device)
   1.693 +{
   1.694 +    MMDevApiData *data = device->ExtraData;
   1.695 +    ThreadRequest req = { data->MsgEvent, 0 };
   1.696 +
   1.697 +    if(PostThreadMessage(ThreadID, WM_USER_CloseDevice, (WPARAM)&req, (LPARAM)device))
   1.698 +        (void)WaitForResponse(&req);
   1.699 +
   1.700 +    CloseHandle(data->MsgEvent);
   1.701 +    data->MsgEvent = NULL;
   1.702 +
   1.703 +    CloseHandle(data->hNotifyEvent);
   1.704 +    data->hNotifyEvent = NULL;
   1.705 +
   1.706 +    free(data);
   1.707 +    device->ExtraData = NULL;
   1.708 +}
   1.709 +
   1.710 +static ALCboolean MMDevApiResetPlayback(ALCdevice *device)
   1.711 +{
   1.712 +    MMDevApiData *data = device->ExtraData;
   1.713 +    ThreadRequest req = { data->MsgEvent, 0 };
   1.714 +    HRESULT hr = E_FAIL;
   1.715 +
   1.716 +    if(PostThreadMessage(ThreadID, WM_USER_ResetDevice, (WPARAM)&req, (LPARAM)device))
   1.717 +        hr = WaitForResponse(&req);
   1.718 +
   1.719 +    return SUCCEEDED(hr) ? ALC_TRUE : ALC_FALSE;
   1.720 +}
   1.721 +
   1.722 +static void MMDevApiStopPlayback(ALCdevice *device)
   1.723 +{
   1.724 +    MMDevApiData *data = device->ExtraData;
   1.725 +    ThreadRequest req = { data->MsgEvent, 0 };
   1.726 +
   1.727 +    if(PostThreadMessage(ThreadID, WM_USER_StopDevice, (WPARAM)&req, (LPARAM)device))
   1.728 +        (void)WaitForResponse(&req);
   1.729 +}
   1.730 +
   1.731 +
   1.732 +static const BackendFuncs MMDevApiFuncs = {
   1.733 +    MMDevApiOpenPlayback,
   1.734 +    MMDevApiClosePlayback,
   1.735 +    MMDevApiResetPlayback,
   1.736 +    MMDevApiStopPlayback,
   1.737 +    NULL,
   1.738 +    NULL,
   1.739 +    NULL,
   1.740 +    NULL,
   1.741 +    NULL,
   1.742 +    NULL
   1.743 +};
   1.744 +
   1.745 +
   1.746 +ALCboolean alcMMDevApiInit(BackendFuncs *FuncList)
   1.747 +{
   1.748 +    if(!MMDevApiLoad())
   1.749 +        return ALC_FALSE;
   1.750 +    *FuncList = MMDevApiFuncs;
   1.751 +    return ALC_TRUE;
   1.752 +}
   1.753 +
   1.754 +void alcMMDevApiDeinit(void)
   1.755 +{
   1.756 +    if(ThreadHdl)
   1.757 +    {
   1.758 +        TRACE("Sending WM_QUIT to Thread %04lx\n", ThreadID);
   1.759 +        PostThreadMessage(ThreadID, WM_QUIT, 0, 0);
   1.760 +        CloseHandle(ThreadHdl);
   1.761 +        ThreadHdl = NULL;
   1.762 +    }
   1.763 +}
   1.764 +
   1.765 +void alcMMDevApiProbe(enum DevProbe type)
   1.766 +{
   1.767 +    switch(type)
   1.768 +    {
   1.769 +        case DEVICE_PROBE:
   1.770 +            AppendDeviceList(mmDevice);
   1.771 +            break;
   1.772 +        case ALL_DEVICE_PROBE:
   1.773 +            AppendAllDeviceList(mmDevice);
   1.774 +            break;
   1.775 +        case CAPTURE_DEVICE_PROBE:
   1.776 +            break;
   1.777 +    }
   1.778 +}