diff options
Diffstat (limited to 'Alc/backends/wasapi.c')
| -rw-r--r-- | Alc/backends/wasapi.c | 2045 |
1 files changed, 2045 insertions, 0 deletions
diff --git a/Alc/backends/wasapi.c b/Alc/backends/wasapi.c new file mode 100644 index 00000000..b974321b --- /dev/null +++ b/Alc/backends/wasapi.c @@ -0,0 +1,2045 @@ +/** + * OpenAL cross platform audio library + * Copyright (C) 2011 by authors. + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * Or go to http://www.gnu.org/copyleft/lgpl.html + */ + +#include "config.h" + +#define COBJMACROS +#include <stdlib.h> +#include <stdio.h> +#include <memory.h> + +#include <wtypes.h> +#include <mmdeviceapi.h> +#include <audioclient.h> +#include <cguid.h> +#include <devpropdef.h> +#include <mmreg.h> +#include <propsys.h> +#include <propkey.h> +#include <devpkey.h> +#ifndef _WAVEFORMATEXTENSIBLE_ +#include <ks.h> +#include <ksmedia.h> +#endif + +#include "alMain.h" +#include "alu.h" +#include "ringbuffer.h" +#include "threads.h" +#include "compat.h" +#include "alstring.h" +#include "converter.h" + +#include "backends/base.h" + + +DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); +DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, 0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71); + +DEFINE_DEVPROPKEY(DEVPKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80,0x20, 0x67,0xd1,0x46,0xa8,0x50,0xe0, 14); +DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_FormFactor, 0x1da5d803, 0xd492, 0x4edd, 0x8c,0x23, 0xe0,0xc0,0xff,0xee,0x7f,0x0e, 0); +DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_GUID, 0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x23,0xe0, 0xc0,0xff,0xee,0x7f,0x0e, 4 ); + +#define MONO SPEAKER_FRONT_CENTER +#define STEREO (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT) +#define QUAD (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT) +#define X5DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT) +#define X5DOT1REAR (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT) +#define X6DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_CENTER|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT) +#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) +#define X7DOT1_WIDE (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT|SPEAKER_FRONT_LEFT_OF_CENTER|SPEAKER_FRONT_RIGHT_OF_CENTER) + +#define REFTIME_PER_SEC ((REFERENCE_TIME)10000000) + +#define DEVNAME_HEAD "OpenAL Soft on " + + +/* Scales the given value using 64-bit integer math, ceiling the result. */ +static inline ALuint64 ScaleCeil(ALuint64 val, ALuint64 new_scale, ALuint64 old_scale) +{ + return (val*new_scale + old_scale-1) / old_scale; +} + + +typedef struct { + al_string name; + al_string endpoint_guid; // obtained from PKEY_AudioEndpoint_GUID , set to "Unknown device GUID" if absent. + WCHAR *devid; +} DevMap; +TYPEDEF_VECTOR(DevMap, vector_DevMap) + +static void clear_devlist(vector_DevMap *list) +{ +#define CLEAR_DEVMAP(i) do { \ + AL_STRING_DEINIT((i)->name); \ + AL_STRING_DEINIT((i)->endpoint_guid); \ + free((i)->devid); \ + (i)->devid = NULL; \ +} while(0) + VECTOR_FOR_EACH(DevMap, *list, CLEAR_DEVMAP); + VECTOR_RESIZE(*list, 0, 0); +#undef CLEAR_DEVMAP +} + +static vector_DevMap PlaybackDevices; +static vector_DevMap CaptureDevices; + + +static HANDLE ThreadHdl; +static DWORD ThreadID; + +typedef struct { + HANDLE FinishedEvt; + HRESULT result; +} ThreadRequest; + +#define WM_USER_First (WM_USER+0) +#define WM_USER_OpenDevice (WM_USER+0) +#define WM_USER_ResetDevice (WM_USER+1) +#define WM_USER_StartDevice (WM_USER+2) +#define WM_USER_StopDevice (WM_USER+3) +#define WM_USER_CloseDevice (WM_USER+4) +#define WM_USER_Enumerate (WM_USER+5) +#define WM_USER_Last (WM_USER+5) + +static const char MessageStr[WM_USER_Last+1-WM_USER][20] = { + "Open Device", + "Reset Device", + "Start Device", + "Stop Device", + "Close Device", + "Enumerate Devices", +}; + +static inline void ReturnMsgResponse(ThreadRequest *req, HRESULT res) +{ + req->result = res; + SetEvent(req->FinishedEvt); +} + +static HRESULT WaitForResponse(ThreadRequest *req) +{ + if(WaitForSingleObject(req->FinishedEvt, INFINITE) == WAIT_OBJECT_0) + return req->result; + ERR("Message response error: %lu\n", GetLastError()); + return E_FAIL; +} + + +static void get_device_name_and_guid(IMMDevice *device, al_string *name, al_string *guid) +{ + IPropertyStore *ps; + PROPVARIANT pvname; + PROPVARIANT pvguid; + HRESULT hr; + + alstr_copy_cstr(name, DEVNAME_HEAD); + + hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps); + if(FAILED(hr)) + { + WARN("OpenPropertyStore failed: 0x%08lx\n", hr); + alstr_append_cstr(name, "Unknown Device Name"); + if(guid!=NULL)alstr_copy_cstr(guid, "Unknown Device GUID"); + return; + } + + PropVariantInit(&pvname); + + hr = IPropertyStore_GetValue(ps, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pvname); + if(FAILED(hr)) + { + WARN("GetValue Device_FriendlyName failed: 0x%08lx\n", hr); + alstr_append_cstr(name, "Unknown Device Name"); + } + else if(pvname.vt == VT_LPWSTR) + alstr_append_wcstr(name, pvname.pwszVal); + else + { + WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvname.vt); + alstr_append_cstr(name, "Unknown Device Name"); + } + PropVariantClear(&pvname); + + if(guid!=NULL){ + PropVariantInit(&pvguid); + + hr = IPropertyStore_GetValue(ps, (const PROPERTYKEY*)&PKEY_AudioEndpoint_GUID, &pvguid); + if(FAILED(hr)) + { + WARN("GetValue AudioEndpoint_GUID failed: 0x%08lx\n", hr); + alstr_copy_cstr(guid, "Unknown Device GUID"); + } + else if(pvguid.vt == VT_LPWSTR) + alstr_copy_wcstr(guid, pvguid.pwszVal); + else + { + WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvguid.vt); + alstr_copy_cstr(guid, "Unknown Device GUID"); + } + + PropVariantClear(&pvguid); + } + + IPropertyStore_Release(ps); +} + +static void get_device_formfactor(IMMDevice *device, EndpointFormFactor *formfactor) +{ + IPropertyStore *ps; + PROPVARIANT pvform; + HRESULT hr; + + hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps); + if(FAILED(hr)) + { + WARN("OpenPropertyStore failed: 0x%08lx\n", hr); + return; + } + + PropVariantInit(&pvform); + + hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_FormFactor, &pvform); + if(FAILED(hr)) + WARN("GetValue AudioEndpoint_FormFactor failed: 0x%08lx\n", hr); + else if(pvform.vt == VT_UI4) + *formfactor = pvform.ulVal; + else if(pvform.vt == VT_EMPTY) + *formfactor = UnknownFormFactor; + else + WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvform.vt); + + PropVariantClear(&pvform); + IPropertyStore_Release(ps); +} + + +static void add_device(IMMDevice *device, const WCHAR *devid, vector_DevMap *list) +{ + int count = 0; + al_string tmpname; + DevMap entry; + + AL_STRING_INIT(tmpname); + AL_STRING_INIT(entry.name); + AL_STRING_INIT(entry.endpoint_guid); + + entry.devid = strdupW(devid); + get_device_name_and_guid(device, &tmpname, &entry.endpoint_guid); + + while(1) + { + const DevMap *iter; + + alstr_copy(&entry.name, tmpname); + if(count != 0) + { + char str[64]; + snprintf(str, sizeof(str), " #%d", count+1); + alstr_append_cstr(&entry.name, str); + } + +#define MATCH_ENTRY(i) (alstr_cmp(entry.name, (i)->name) == 0) + VECTOR_FIND_IF(iter, const DevMap, *list, MATCH_ENTRY); + if(iter == VECTOR_END(*list)) break; +#undef MATCH_ENTRY + count++; + } + + TRACE("Got device \"%s\", \"%s\", \"%ls\"\n", alstr_get_cstr(entry.name), alstr_get_cstr(entry.endpoint_guid), entry.devid); + VECTOR_PUSH_BACK(*list, entry); + + AL_STRING_DEINIT(tmpname); +} + +static WCHAR *get_device_id(IMMDevice *device) +{ + WCHAR *devid; + HRESULT hr; + + hr = IMMDevice_GetId(device, &devid); + if(FAILED(hr)) + { + ERR("Failed to get device id: %lx\n", hr); + return NULL; + } + + return devid; +} + +static HRESULT probe_devices(IMMDeviceEnumerator *devenum, EDataFlow flowdir, vector_DevMap *list) +{ + IMMDeviceCollection *coll; + IMMDevice *defdev = NULL; + WCHAR *defdevid = NULL; + HRESULT hr; + UINT count; + UINT i; + + hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flowdir, DEVICE_STATE_ACTIVE, &coll); + if(FAILED(hr)) + { + ERR("Failed to enumerate audio endpoints: 0x%08lx\n", hr); + return hr; + } + + count = 0; + hr = IMMDeviceCollection_GetCount(coll, &count); + if(SUCCEEDED(hr) && count > 0) + { + clear_devlist(list); + VECTOR_RESIZE(*list, 0, count); + + hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, flowdir, + eMultimedia, &defdev); + } + if(SUCCEEDED(hr) && defdev != NULL) + { + defdevid = get_device_id(defdev); + if(defdevid) + add_device(defdev, defdevid, list); + } + + for(i = 0;i < count;++i) + { + IMMDevice *device; + WCHAR *devid; + + hr = IMMDeviceCollection_Item(coll, i, &device); + if(FAILED(hr)) continue; + + devid = get_device_id(device); + if(devid) + { + if(!defdevid || wcscmp(devid, defdevid) != 0) + add_device(device, devid, list); + CoTaskMemFree(devid); + } + IMMDevice_Release(device); + } + + if(defdev) IMMDevice_Release(defdev); + if(defdevid) CoTaskMemFree(defdevid); + IMMDeviceCollection_Release(coll); + + return S_OK; +} + + +/* Proxy interface used by the message handler. */ +struct ALCwasapiProxyVtable; + +typedef struct ALCwasapiProxy { + const struct ALCwasapiProxyVtable *vtbl; +} ALCwasapiProxy; + +struct ALCwasapiProxyVtable { + HRESULT (*const openProxy)(ALCwasapiProxy*); + void (*const closeProxy)(ALCwasapiProxy*); + + HRESULT (*const resetProxy)(ALCwasapiProxy*); + HRESULT (*const startProxy)(ALCwasapiProxy*); + void (*const stopProxy)(ALCwasapiProxy*); +}; + +#define DEFINE_ALCWASAPIPROXY_VTABLE(T) \ +DECLARE_THUNK(T, ALCwasapiProxy, HRESULT, openProxy) \ +DECLARE_THUNK(T, ALCwasapiProxy, void, closeProxy) \ +DECLARE_THUNK(T, ALCwasapiProxy, HRESULT, resetProxy) \ +DECLARE_THUNK(T, ALCwasapiProxy, HRESULT, startProxy) \ +DECLARE_THUNK(T, ALCwasapiProxy, void, stopProxy) \ + \ +static const struct ALCwasapiProxyVtable T##_ALCwasapiProxy_vtable = { \ + T##_ALCwasapiProxy_openProxy, \ + T##_ALCwasapiProxy_closeProxy, \ + T##_ALCwasapiProxy_resetProxy, \ + T##_ALCwasapiProxy_startProxy, \ + T##_ALCwasapiProxy_stopProxy, \ +} + +static void ALCwasapiProxy_Construct(ALCwasapiProxy* UNUSED(self)) { } +static void ALCwasapiProxy_Destruct(ALCwasapiProxy* UNUSED(self)) { } + +static DWORD CALLBACK ALCwasapiProxy_messageHandler(void *ptr) +{ + ThreadRequest *req = ptr; + IMMDeviceEnumerator *Enumerator; + ALuint deviceCount = 0; + ALCwasapiProxy *proxy; + HRESULT hr, cohr; + MSG msg; + + TRACE("Starting message thread\n"); + + cohr = CoInitializeEx(NULL, COINIT_MULTITHREADED); + if(FAILED(cohr)) + { + WARN("Failed to initialize COM: 0x%08lx\n", cohr); + ReturnMsgResponse(req, cohr); + return 0; + } + + hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr); + if(FAILED(hr)) + { + WARN("Failed to create IMMDeviceEnumerator instance: 0x%08lx\n", hr); + CoUninitialize(); + ReturnMsgResponse(req, hr); + return 0; + } + Enumerator = ptr; + IMMDeviceEnumerator_Release(Enumerator); + Enumerator = NULL; + + CoUninitialize(); + + /* HACK: Force Windows to create a message queue for this thread before + * returning success, otherwise PostThreadMessage may fail if it gets + * called before GetMessage. + */ + PeekMessage(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE); + + TRACE("Message thread initialization complete\n"); + ReturnMsgResponse(req, S_OK); + + TRACE("Starting message loop\n"); + while(GetMessage(&msg, NULL, WM_USER_First, WM_USER_Last)) + { + TRACE("Got message \"%s\" (0x%04x, lparam=%p, wparam=%p)\n", + (msg.message >= WM_USER && msg.message <= WM_USER_Last) ? + MessageStr[msg.message-WM_USER] : "Unknown", + msg.message, (void*)msg.lParam, (void*)msg.wParam + ); + switch(msg.message) + { + case WM_USER_OpenDevice: + req = (ThreadRequest*)msg.wParam; + proxy = (ALCwasapiProxy*)msg.lParam; + + hr = cohr = S_OK; + if(++deviceCount == 1) + hr = cohr = CoInitializeEx(NULL, COINIT_MULTITHREADED); + if(SUCCEEDED(hr)) + hr = V0(proxy,openProxy)(); + if(FAILED(hr)) + { + if(--deviceCount == 0 && SUCCEEDED(cohr)) + CoUninitialize(); + } + + ReturnMsgResponse(req, hr); + continue; + + case WM_USER_ResetDevice: + req = (ThreadRequest*)msg.wParam; + proxy = (ALCwasapiProxy*)msg.lParam; + + hr = V0(proxy,resetProxy)(); + ReturnMsgResponse(req, hr); + continue; + + case WM_USER_StartDevice: + req = (ThreadRequest*)msg.wParam; + proxy = (ALCwasapiProxy*)msg.lParam; + + hr = V0(proxy,startProxy)(); + ReturnMsgResponse(req, hr); + continue; + + case WM_USER_StopDevice: + req = (ThreadRequest*)msg.wParam; + proxy = (ALCwasapiProxy*)msg.lParam; + + V0(proxy,stopProxy)(); + ReturnMsgResponse(req, S_OK); + continue; + + case WM_USER_CloseDevice: + req = (ThreadRequest*)msg.wParam; + proxy = (ALCwasapiProxy*)msg.lParam; + + V0(proxy,closeProxy)(); + if(--deviceCount == 0) + CoUninitialize(); + + ReturnMsgResponse(req, S_OK); + continue; + + case WM_USER_Enumerate: + req = (ThreadRequest*)msg.wParam; + + hr = cohr = S_OK; + if(++deviceCount == 1) + hr = cohr = CoInitializeEx(NULL, COINIT_MULTITHREADED); + if(SUCCEEDED(hr)) + hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr); + if(SUCCEEDED(hr)) + { + Enumerator = ptr; + + if(msg.lParam == ALL_DEVICE_PROBE) + hr = probe_devices(Enumerator, eRender, &PlaybackDevices); + else if(msg.lParam == CAPTURE_DEVICE_PROBE) + hr = probe_devices(Enumerator, eCapture, &CaptureDevices); + + IMMDeviceEnumerator_Release(Enumerator); + Enumerator = NULL; + } + + if(--deviceCount == 0 && SUCCEEDED(cohr)) + CoUninitialize(); + + ReturnMsgResponse(req, hr); + continue; + + default: + ERR("Unexpected message: %u\n", msg.message); + continue; + } + } + TRACE("Message loop finished\n"); + + return 0; +} + + +typedef struct ALCwasapiPlayback { + DERIVE_FROM_TYPE(ALCbackend); + DERIVE_FROM_TYPE(ALCwasapiProxy); + + WCHAR *devid; + + IMMDevice *mmdev; + IAudioClient *client; + IAudioRenderClient *render; + HANDLE NotifyEvent; + + HANDLE MsgEvent; + + ATOMIC(UINT32) Padding; + + ATOMIC(int) killNow; + althrd_t thread; +} ALCwasapiPlayback; + +static int ALCwasapiPlayback_mixerProc(void *arg); + +static void ALCwasapiPlayback_Construct(ALCwasapiPlayback *self, ALCdevice *device); +static void ALCwasapiPlayback_Destruct(ALCwasapiPlayback *self); +static ALCenum ALCwasapiPlayback_open(ALCwasapiPlayback *self, const ALCchar *name); +static HRESULT ALCwasapiPlayback_openProxy(ALCwasapiPlayback *self); +static void ALCwasapiPlayback_closeProxy(ALCwasapiPlayback *self); +static ALCboolean ALCwasapiPlayback_reset(ALCwasapiPlayback *self); +static HRESULT ALCwasapiPlayback_resetProxy(ALCwasapiPlayback *self); +static ALCboolean ALCwasapiPlayback_start(ALCwasapiPlayback *self); +static HRESULT ALCwasapiPlayback_startProxy(ALCwasapiPlayback *self); +static void ALCwasapiPlayback_stop(ALCwasapiPlayback *self); +static void ALCwasapiPlayback_stopProxy(ALCwasapiPlayback *self); +static DECLARE_FORWARD2(ALCwasapiPlayback, ALCbackend, ALCenum, captureSamples, ALCvoid*, ALCuint) +static DECLARE_FORWARD(ALCwasapiPlayback, ALCbackend, ALCuint, availableSamples) +static ClockLatency ALCwasapiPlayback_getClockLatency(ALCwasapiPlayback *self); +static DECLARE_FORWARD(ALCwasapiPlayback, ALCbackend, void, lock) +static DECLARE_FORWARD(ALCwasapiPlayback, ALCbackend, void, unlock) +DECLARE_DEFAULT_ALLOCATORS(ALCwasapiPlayback) + +DEFINE_ALCWASAPIPROXY_VTABLE(ALCwasapiPlayback); +DEFINE_ALCBACKEND_VTABLE(ALCwasapiPlayback); + + +static void ALCwasapiPlayback_Construct(ALCwasapiPlayback *self, ALCdevice *device) +{ + SET_VTABLE2(ALCwasapiPlayback, ALCbackend, self); + SET_VTABLE2(ALCwasapiPlayback, ALCwasapiProxy, self); + ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device); + ALCwasapiProxy_Construct(STATIC_CAST(ALCwasapiProxy, self)); + + self->devid = NULL; + + self->mmdev = NULL; + self->client = NULL; + self->render = NULL; + self->NotifyEvent = NULL; + + self->MsgEvent = NULL; + + ATOMIC_INIT(&self->Padding, 0); + + ATOMIC_INIT(&self->killNow, 0); +} + +static void ALCwasapiPlayback_Destruct(ALCwasapiPlayback *self) +{ + if(self->MsgEvent) + { + ThreadRequest req = { self->MsgEvent, 0 }; + if(PostThreadMessage(ThreadID, WM_USER_CloseDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + (void)WaitForResponse(&req); + + CloseHandle(self->MsgEvent); + self->MsgEvent = NULL; + } + + if(self->NotifyEvent) + CloseHandle(self->NotifyEvent); + self->NotifyEvent = NULL; + + free(self->devid); + self->devid = NULL; + + if(self->NotifyEvent != NULL) + CloseHandle(self->NotifyEvent); + self->NotifyEvent = NULL; + if(self->MsgEvent != NULL) + CloseHandle(self->MsgEvent); + self->MsgEvent = NULL; + + free(self->devid); + self->devid = NULL; + + ALCwasapiProxy_Destruct(STATIC_CAST(ALCwasapiProxy, self)); + ALCbackend_Destruct(STATIC_CAST(ALCbackend, self)); +} + + +FORCE_ALIGN static int ALCwasapiPlayback_mixerProc(void *arg) +{ + ALCwasapiPlayback *self = arg; + ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice; + UINT32 buffer_len, written; + ALuint update_size, len; + BYTE *buffer; + HRESULT hr; + + hr = CoInitializeEx(NULL, COINIT_MULTITHREADED); + if(FAILED(hr)) + { + ERR("CoInitializeEx(NULL, COINIT_MULTITHREADED) failed: 0x%08lx\n", hr); + V0(device->Backend,lock)(); + aluHandleDisconnect(device, "COM init failed: 0x%08lx", hr); + V0(device->Backend,unlock)(); + return 1; + } + + SetRTPriority(); + althrd_setname(althrd_current(), MIXER_THREAD_NAME); + + update_size = device->UpdateSize; + buffer_len = update_size * device->NumUpdates; + while(!ATOMIC_LOAD(&self->killNow, almemory_order_relaxed)) + { + hr = IAudioClient_GetCurrentPadding(self->client, &written); + if(FAILED(hr)) + { + ERR("Failed to get padding: 0x%08lx\n", hr); + V0(device->Backend,lock)(); + aluHandleDisconnect(device, "Failed to retrieve buffer padding: 0x%08lx", hr); + V0(device->Backend,unlock)(); + break; + } + ATOMIC_STORE(&self->Padding, written, almemory_order_relaxed); + + len = buffer_len - written; + if(len < update_size) + { + DWORD res; + res = WaitForSingleObjectEx(self->NotifyEvent, 2000, FALSE); + if(res != WAIT_OBJECT_0) + ERR("WaitForSingleObjectEx error: 0x%lx\n", res); + continue; + } + len -= len%update_size; + + hr = IAudioRenderClient_GetBuffer(self->render, len, &buffer); + if(SUCCEEDED(hr)) + { + ALCwasapiPlayback_lock(self); + aluMixData(device, buffer, len); + ATOMIC_STORE(&self->Padding, written + len, almemory_order_relaxed); + ALCwasapiPlayback_unlock(self); + hr = IAudioRenderClient_ReleaseBuffer(self->render, len, 0); + } + if(FAILED(hr)) + { + ERR("Failed to buffer data: 0x%08lx\n", hr); + V0(device->Backend,lock)(); + aluHandleDisconnect(device, "Failed to send playback samples: 0x%08lx", hr); + V0(device->Backend,unlock)(); + break; + } + } + ATOMIC_STORE(&self->Padding, 0, almemory_order_release); + + CoUninitialize(); + return 0; +} + + +static ALCboolean MakeExtensible(WAVEFORMATEXTENSIBLE *out, const WAVEFORMATEX *in) +{ + memset(out, 0, sizeof(*out)); + if(in->wFormatTag == WAVE_FORMAT_EXTENSIBLE) + *out = *(const WAVEFORMATEXTENSIBLE*)in; + else if(in->wFormatTag == WAVE_FORMAT_PCM) + { + out->Format = *in; + out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; + out->Format.cbSize = sizeof(*out) - sizeof(*in); + if(out->Format.nChannels == 1) + out->dwChannelMask = MONO; + else if(out->Format.nChannels == 2) + out->dwChannelMask = STEREO; + else + ERR("Unhandled PCM channel count: %d\n", out->Format.nChannels); + out->SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + } + else if(in->wFormatTag == WAVE_FORMAT_IEEE_FLOAT) + { + out->Format = *in; + out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; + out->Format.cbSize = sizeof(*out) - sizeof(*in); + if(out->Format.nChannels == 1) + out->dwChannelMask = MONO; + else if(out->Format.nChannels == 2) + out->dwChannelMask = STEREO; + else + ERR("Unhandled IEEE float channel count: %d\n", out->Format.nChannels); + out->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT; + } + else + { + ERR("Unhandled format tag: 0x%04x\n", in->wFormatTag); + return ALC_FALSE; + } + return ALC_TRUE; +} + +static ALCenum ALCwasapiPlayback_open(ALCwasapiPlayback *self, const ALCchar *deviceName) +{ + HRESULT hr = S_OK; + + self->NotifyEvent = CreateEventW(NULL, FALSE, FALSE, NULL); + self->MsgEvent = CreateEventW(NULL, FALSE, FALSE, NULL); + if(self->NotifyEvent == NULL || self->MsgEvent == NULL) + { + ERR("Failed to create message events: %lu\n", GetLastError()); + hr = E_FAIL; + } + + if(SUCCEEDED(hr)) + { + if(deviceName) + { + const DevMap *iter; + + if(VECTOR_SIZE(PlaybackDevices) == 0) + { + ThreadRequest req = { self->MsgEvent, 0 }; + if(PostThreadMessage(ThreadID, WM_USER_Enumerate, (WPARAM)&req, ALL_DEVICE_PROBE)) + (void)WaitForResponse(&req); + } + + hr = E_FAIL; +#define MATCH_NAME(i) (alstr_cmp_cstr((i)->name, deviceName) == 0 || \ + alstr_cmp_cstr((i)->endpoint_guid, deviceName) == 0) + VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_NAME); +#undef MATCH_NAME + if(iter == VECTOR_END(PlaybackDevices)) + { + int len; + if((len=MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, NULL, 0)) > 0) + { + WCHAR *wname = calloc(sizeof(WCHAR), len); + MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, wname, len); +#define MATCH_NAME(i) (wcscmp((i)->devid, wname) == 0) + VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_NAME); +#undef MATCH_NAME + free(wname); + } + } + if(iter == VECTOR_END(PlaybackDevices)) + WARN("Failed to find device name matching \"%s\"\n", deviceName); + else + { + ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; + self->devid = strdupW(iter->devid); + alstr_copy(&device->DeviceName, iter->name); + hr = S_OK; + } + } + } + + if(SUCCEEDED(hr)) + { + ThreadRequest req = { self->MsgEvent, 0 }; + + hr = E_FAIL; + if(PostThreadMessage(ThreadID, WM_USER_OpenDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + hr = WaitForResponse(&req); + else + ERR("Failed to post thread message: %lu\n", GetLastError()); + } + + if(FAILED(hr)) + { + if(self->NotifyEvent != NULL) + CloseHandle(self->NotifyEvent); + self->NotifyEvent = NULL; + if(self->MsgEvent != NULL) + CloseHandle(self->MsgEvent); + self->MsgEvent = NULL; + + free(self->devid); + self->devid = NULL; + + ERR("Device init failed: 0x%08lx\n", hr); + return ALC_INVALID_VALUE; + } + + return ALC_NO_ERROR; +} + +static HRESULT ALCwasapiPlayback_openProxy(ALCwasapiPlayback *self) +{ + ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice; + void *ptr; + HRESULT hr; + + hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr); + if(SUCCEEDED(hr)) + { + IMMDeviceEnumerator *Enumerator = ptr; + if(!self->devid) + hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(Enumerator, eRender, eMultimedia, &self->mmdev); + else + hr = IMMDeviceEnumerator_GetDevice(Enumerator, self->devid, &self->mmdev); + IMMDeviceEnumerator_Release(Enumerator); + Enumerator = NULL; + } + if(SUCCEEDED(hr)) + hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr); + if(SUCCEEDED(hr)) + { + self->client = ptr; + if(alstr_empty(device->DeviceName)) + get_device_name_and_guid(self->mmdev, &device->DeviceName, NULL); + } + + if(FAILED(hr)) + { + if(self->mmdev) + IMMDevice_Release(self->mmdev); + self->mmdev = NULL; + } + + return hr; +} + + +static void ALCwasapiPlayback_closeProxy(ALCwasapiPlayback *self) +{ + if(self->client) + IAudioClient_Release(self->client); + self->client = NULL; + + if(self->mmdev) + IMMDevice_Release(self->mmdev); + self->mmdev = NULL; +} + + +static ALCboolean ALCwasapiPlayback_reset(ALCwasapiPlayback *self) +{ + ThreadRequest req = { self->MsgEvent, 0 }; + HRESULT hr = E_FAIL; + + if(PostThreadMessage(ThreadID, WM_USER_ResetDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + hr = WaitForResponse(&req); + + return SUCCEEDED(hr) ? ALC_TRUE : ALC_FALSE; +} + +static HRESULT ALCwasapiPlayback_resetProxy(ALCwasapiPlayback *self) +{ + ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice; + EndpointFormFactor formfactor = UnknownFormFactor; + WAVEFORMATEXTENSIBLE OutputType; + WAVEFORMATEX *wfx = NULL; + REFERENCE_TIME min_per, buf_time; + UINT32 buffer_len, min_len; + void *ptr = NULL; + HRESULT hr; + + if(self->client) + IAudioClient_Release(self->client); + self->client = NULL; + + hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr); + if(FAILED(hr)) + { + ERR("Failed to reactivate audio client: 0x%08lx\n", hr); + return hr; + } + self->client = ptr; + + hr = IAudioClient_GetMixFormat(self->client, &wfx); + if(FAILED(hr)) + { + ERR("Failed to get mix format: 0x%08lx\n", hr); + return hr; + } + + if(!MakeExtensible(&OutputType, wfx)) + { + CoTaskMemFree(wfx); + return E_FAIL; + } + CoTaskMemFree(wfx); + wfx = NULL; + + buf_time = ScaleCeil(device->UpdateSize*device->NumUpdates, REFTIME_PER_SEC, + device->Frequency); + + if(!(device->Flags&DEVICE_FREQUENCY_REQUEST)) + device->Frequency = OutputType.Format.nSamplesPerSec; + if(!(device->Flags&DEVICE_CHANNELS_REQUEST)) + { + if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO) + device->FmtChans = DevFmtMono; + else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO) + device->FmtChans = DevFmtStereo; + else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD) + device->FmtChans = DevFmtQuad; + else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1) + device->FmtChans = DevFmtX51; + else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1REAR) + device->FmtChans = DevFmtX51Rear; + else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1) + device->FmtChans = DevFmtX61; + else if(OutputType.Format.nChannels == 8 && (OutputType.dwChannelMask == X7DOT1 || OutputType.dwChannelMask == X7DOT1_WIDE)) + device->FmtChans = DevFmtX71; + else + ERR("Unhandled channel config: %d -- 0x%08lx\n", OutputType.Format.nChannels, OutputType.dwChannelMask); + } + + switch(device->FmtChans) + { + case DevFmtMono: + OutputType.Format.nChannels = 1; + OutputType.dwChannelMask = MONO; + break; + case DevFmtAmbi3D: + device->FmtChans = DevFmtStereo; + /*fall-through*/ + case DevFmtStereo: + OutputType.Format.nChannels = 2; + OutputType.dwChannelMask = STEREO; + break; + case DevFmtQuad: + OutputType.Format.nChannels = 4; + OutputType.dwChannelMask = QUAD; + break; + case DevFmtX51: + OutputType.Format.nChannels = 6; + OutputType.dwChannelMask = X5DOT1; + break; + case DevFmtX51Rear: + OutputType.Format.nChannels = 6; + OutputType.dwChannelMask = X5DOT1REAR; + break; + case DevFmtX61: + OutputType.Format.nChannels = 7; + OutputType.dwChannelMask = X6DOT1; + break; + case DevFmtX71: + OutputType.Format.nChannels = 8; + OutputType.dwChannelMask = X7DOT1; + break; + } + switch(device->FmtType) + { + case DevFmtByte: + device->FmtType = DevFmtUByte; + /* fall-through */ + case DevFmtUByte: + OutputType.Format.wBitsPerSample = 8; + OutputType.Samples.wValidBitsPerSample = 8; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + break; + case DevFmtUShort: + device->FmtType = DevFmtShort; + /* fall-through */ + case DevFmtShort: + OutputType.Format.wBitsPerSample = 16; + OutputType.Samples.wValidBitsPerSample = 16; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + break; + case DevFmtUInt: + device->FmtType = DevFmtInt; + /* fall-through */ + case DevFmtInt: + OutputType.Format.wBitsPerSample = 32; + OutputType.Samples.wValidBitsPerSample = 32; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + break; + case DevFmtFloat: + OutputType.Format.wBitsPerSample = 32; + OutputType.Samples.wValidBitsPerSample = 32; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT; + break; + } + OutputType.Format.nSamplesPerSec = device->Frequency; + + OutputType.Format.nBlockAlign = OutputType.Format.nChannels * + OutputType.Format.wBitsPerSample / 8; + OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec * + OutputType.Format.nBlockAlign; + + hr = IAudioClient_IsFormatSupported(self->client, AUDCLNT_SHAREMODE_SHARED, &OutputType.Format, &wfx); + if(FAILED(hr)) + { + ERR("Failed to check format support: 0x%08lx\n", hr); + hr = IAudioClient_GetMixFormat(self->client, &wfx); + } + if(FAILED(hr)) + { + ERR("Failed to find a supported format: 0x%08lx\n", hr); + return hr; + } + + if(wfx != NULL) + { + if(!MakeExtensible(&OutputType, wfx)) + { + CoTaskMemFree(wfx); + return E_FAIL; + } + CoTaskMemFree(wfx); + wfx = NULL; + + device->Frequency = OutputType.Format.nSamplesPerSec; + if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO) + device->FmtChans = DevFmtMono; + else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO) + device->FmtChans = DevFmtStereo; + else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD) + device->FmtChans = DevFmtQuad; + else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1) + device->FmtChans = DevFmtX51; + else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1REAR) + device->FmtChans = DevFmtX51Rear; + else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1) + device->FmtChans = DevFmtX61; + else if(OutputType.Format.nChannels == 8 && (OutputType.dwChannelMask == X7DOT1 || OutputType.dwChannelMask == X7DOT1_WIDE)) + device->FmtChans = DevFmtX71; + else + { + ERR("Unhandled extensible channels: %d -- 0x%08lx\n", OutputType.Format.nChannels, OutputType.dwChannelMask); + device->FmtChans = DevFmtStereo; + OutputType.Format.nChannels = 2; + OutputType.dwChannelMask = STEREO; + } + + if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM)) + { + if(OutputType.Format.wBitsPerSample == 8) + device->FmtType = DevFmtUByte; + else if(OutputType.Format.wBitsPerSample == 16) + device->FmtType = DevFmtShort; + else if(OutputType.Format.wBitsPerSample == 32) + device->FmtType = DevFmtInt; + else + { + device->FmtType = DevFmtShort; + OutputType.Format.wBitsPerSample = 16; + } + } + else if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)) + { + device->FmtType = DevFmtFloat; + OutputType.Format.wBitsPerSample = 32; + } + else + { + ERR("Unhandled format sub-type\n"); + device->FmtType = DevFmtShort; + OutputType.Format.wBitsPerSample = 16; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + } + OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample; + } + get_device_formfactor(self->mmdev, &formfactor); + device->IsHeadphones = (device->FmtChans == DevFmtStereo && + (formfactor == Headphones || formfactor == Headset) + ); + + SetDefaultWFXChannelOrder(device); + + hr = IAudioClient_Initialize(self->client, AUDCLNT_SHAREMODE_SHARED, + AUDCLNT_STREAMFLAGS_EVENTCALLBACK, + buf_time, 0, &OutputType.Format, NULL); + if(FAILED(hr)) + { + ERR("Failed to initialize audio client: 0x%08lx\n", hr); + return hr; + } + + hr = IAudioClient_GetDevicePeriod(self->client, &min_per, NULL); + if(SUCCEEDED(hr)) + { + min_len = (UINT32)ScaleCeil(min_per, device->Frequency, REFTIME_PER_SEC); + /* Find the nearest multiple of the period size to the update size */ + if(min_len < device->UpdateSize) + min_len *= (device->UpdateSize + min_len/2)/min_len; + hr = IAudioClient_GetBufferSize(self->client, &buffer_len); + } + if(FAILED(hr)) + { + ERR("Failed to get audio buffer info: 0x%08lx\n", hr); + return hr; + } + + device->UpdateSize = min_len; + device->NumUpdates = buffer_len / device->UpdateSize; + if(device->NumUpdates <= 1) + { + ERR("Audio client returned buffer_len < period*2; expect break up\n"); + device->NumUpdates = 2; + device->UpdateSize = buffer_len / device->NumUpdates; + } + + hr = IAudioClient_SetEventHandle(self->client, self->NotifyEvent); + if(FAILED(hr)) + { + ERR("Failed to set event handle: 0x%08lx\n", hr); + return hr; + } + + return hr; +} + + +static ALCboolean ALCwasapiPlayback_start(ALCwasapiPlayback *self) +{ + ThreadRequest req = { self->MsgEvent, 0 }; + HRESULT hr = E_FAIL; + + if(PostThreadMessage(ThreadID, WM_USER_StartDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + hr = WaitForResponse(&req); + + return SUCCEEDED(hr) ? ALC_TRUE : ALC_FALSE; +} + +static HRESULT ALCwasapiPlayback_startProxy(ALCwasapiPlayback *self) +{ + HRESULT hr; + void *ptr; + + ResetEvent(self->NotifyEvent); + hr = IAudioClient_Start(self->client); + if(FAILED(hr)) + ERR("Failed to start audio client: 0x%08lx\n", hr); + + if(SUCCEEDED(hr)) + hr = IAudioClient_GetService(self->client, &IID_IAudioRenderClient, &ptr); + if(SUCCEEDED(hr)) + { + self->render = ptr; + ATOMIC_STORE(&self->killNow, 0, almemory_order_release); + if(althrd_create(&self->thread, ALCwasapiPlayback_mixerProc, self) != althrd_success) + { + if(self->render) + IAudioRenderClient_Release(self->render); + self->render = NULL; + IAudioClient_Stop(self->client); + ERR("Failed to start thread\n"); + hr = E_FAIL; + } + } + + return hr; +} + + +static void ALCwasapiPlayback_stop(ALCwasapiPlayback *self) +{ + ThreadRequest req = { self->MsgEvent, 0 }; + if(PostThreadMessage(ThreadID, WM_USER_StopDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + (void)WaitForResponse(&req); +} + +static void ALCwasapiPlayback_stopProxy(ALCwasapiPlayback *self) +{ + int res; + + if(!self->render) + return; + + ATOMIC_STORE_SEQ(&self->killNow, 1); + althrd_join(self->thread, &res); + + IAudioRenderClient_Release(self->render); + self->render = NULL; + IAudioClient_Stop(self->client); +} + + +static ClockLatency ALCwasapiPlayback_getClockLatency(ALCwasapiPlayback *self) +{ + ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice; + ClockLatency ret; + + ALCwasapiPlayback_lock(self); + ret.ClockTime = GetDeviceClockTime(device); + ret.Latency = ATOMIC_LOAD(&self->Padding, almemory_order_relaxed) * DEVICE_CLOCK_RES / + device->Frequency; + ALCwasapiPlayback_unlock(self); + + return ret; +} + + +typedef struct ALCwasapiCapture { + DERIVE_FROM_TYPE(ALCbackend); + DERIVE_FROM_TYPE(ALCwasapiProxy); + + WCHAR *devid; + + IMMDevice *mmdev; + IAudioClient *client; + IAudioCaptureClient *capture; + HANDLE NotifyEvent; + + HANDLE MsgEvent; + + ChannelConverter *ChannelConv; + SampleConverter *SampleConv; + ll_ringbuffer_t *Ring; + + ATOMIC(int) killNow; + althrd_t thread; +} ALCwasapiCapture; + +static int ALCwasapiCapture_recordProc(void *arg); + +static void ALCwasapiCapture_Construct(ALCwasapiCapture *self, ALCdevice *device); +static void ALCwasapiCapture_Destruct(ALCwasapiCapture *self); +static ALCenum ALCwasapiCapture_open(ALCwasapiCapture *self, const ALCchar *name); +static HRESULT ALCwasapiCapture_openProxy(ALCwasapiCapture *self); +static void ALCwasapiCapture_closeProxy(ALCwasapiCapture *self); +static DECLARE_FORWARD(ALCwasapiCapture, ALCbackend, ALCboolean, reset) +static HRESULT ALCwasapiCapture_resetProxy(ALCwasapiCapture *self); +static ALCboolean ALCwasapiCapture_start(ALCwasapiCapture *self); +static HRESULT ALCwasapiCapture_startProxy(ALCwasapiCapture *self); +static void ALCwasapiCapture_stop(ALCwasapiCapture *self); +static void ALCwasapiCapture_stopProxy(ALCwasapiCapture *self); +static ALCenum ALCwasapiCapture_captureSamples(ALCwasapiCapture *self, ALCvoid *buffer, ALCuint samples); +static ALuint ALCwasapiCapture_availableSamples(ALCwasapiCapture *self); +static DECLARE_FORWARD(ALCwasapiCapture, ALCbackend, ClockLatency, getClockLatency) +static DECLARE_FORWARD(ALCwasapiCapture, ALCbackend, void, lock) +static DECLARE_FORWARD(ALCwasapiCapture, ALCbackend, void, unlock) +DECLARE_DEFAULT_ALLOCATORS(ALCwasapiCapture) + +DEFINE_ALCWASAPIPROXY_VTABLE(ALCwasapiCapture); +DEFINE_ALCBACKEND_VTABLE(ALCwasapiCapture); + + +static void ALCwasapiCapture_Construct(ALCwasapiCapture *self, ALCdevice *device) +{ + SET_VTABLE2(ALCwasapiCapture, ALCbackend, self); + SET_VTABLE2(ALCwasapiCapture, ALCwasapiProxy, self); + ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device); + ALCwasapiProxy_Construct(STATIC_CAST(ALCwasapiProxy, self)); + + self->devid = NULL; + + self->mmdev = NULL; + self->client = NULL; + self->capture = NULL; + self->NotifyEvent = NULL; + + self->MsgEvent = NULL; + + self->ChannelConv = NULL; + self->SampleConv = NULL; + self->Ring = NULL; + + ATOMIC_INIT(&self->killNow, 0); +} + +static void ALCwasapiCapture_Destruct(ALCwasapiCapture *self) +{ + if(self->MsgEvent) + { + ThreadRequest req = { self->MsgEvent, 0 }; + if(PostThreadMessage(ThreadID, WM_USER_CloseDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + (void)WaitForResponse(&req); + + CloseHandle(self->MsgEvent); + self->MsgEvent = NULL; + } + + if(self->NotifyEvent != NULL) + CloseHandle(self->NotifyEvent); + self->NotifyEvent = NULL; + + ll_ringbuffer_free(self->Ring); + self->Ring = NULL; + + DestroySampleConverter(&self->SampleConv); + DestroyChannelConverter(&self->ChannelConv); + + free(self->devid); + self->devid = NULL; + + ALCwasapiProxy_Destruct(STATIC_CAST(ALCwasapiProxy, self)); + ALCbackend_Destruct(STATIC_CAST(ALCbackend, self)); +} + + +FORCE_ALIGN int ALCwasapiCapture_recordProc(void *arg) +{ + ALCwasapiCapture *self = arg; + ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice; + ALfloat *samples = NULL; + size_t samplesmax = 0; + HRESULT hr; + + hr = CoInitializeEx(NULL, COINIT_MULTITHREADED); + if(FAILED(hr)) + { + ERR("CoInitializeEx(NULL, COINIT_MULTITHREADED) failed: 0x%08lx\n", hr); + V0(device->Backend,lock)(); + aluHandleDisconnect(device, "COM init failed: 0x%08lx", hr); + V0(device->Backend,unlock)(); + return 1; + } + + althrd_setname(althrd_current(), RECORD_THREAD_NAME); + + while(!ATOMIC_LOAD(&self->killNow, almemory_order_relaxed)) + { + UINT32 avail; + DWORD res; + + hr = IAudioCaptureClient_GetNextPacketSize(self->capture, &avail); + if(FAILED(hr)) + ERR("Failed to get next packet size: 0x%08lx\n", hr); + else if(avail > 0) + { + UINT32 numsamples; + DWORD flags; + BYTE *rdata; + + hr = IAudioCaptureClient_GetBuffer(self->capture, + &rdata, &numsamples, &flags, NULL, NULL + ); + if(FAILED(hr)) + ERR("Failed to get capture buffer: 0x%08lx\n", hr); + else + { + ll_ringbuffer_data_t data[2]; + size_t dstframes = 0; + + if(self->ChannelConv) + { + if(samplesmax < numsamples) + { + size_t newmax = RoundUp(numsamples, 4096); + ALfloat *tmp = al_calloc(DEF_ALIGN, newmax*2*sizeof(ALfloat)); + al_free(samples); + samples = tmp; + samplesmax = newmax; + } + ChannelConverterInput(self->ChannelConv, rdata, samples, numsamples); + rdata = (BYTE*)samples; + } + + ll_ringbuffer_get_write_vector(self->Ring, data); + + if(self->SampleConv) + { + const ALvoid *srcdata = rdata; + ALsizei srcframes = numsamples; + + dstframes = SampleConverterInput(self->SampleConv, + &srcdata, &srcframes, data[0].buf, (ALsizei)minz(data[0].len, INT_MAX) + ); + if(srcframes > 0 && dstframes == data[0].len && data[1].len > 0) + { + /* If some source samples remain, all of the first dest + * block was filled, and there's space in the second + * dest block, do another run for the second block. + */ + dstframes += SampleConverterInput(self->SampleConv, + &srcdata, &srcframes, data[1].buf, (ALsizei)minz(data[1].len, INT_MAX) + ); + } + } + else + { + ALuint framesize = FrameSizeFromDevFmt(device->FmtChans, device->FmtType, + device->AmbiOrder); + size_t len1 = minz(data[0].len, numsamples); + size_t len2 = minz(data[1].len, numsamples-len1); + + memcpy(data[0].buf, rdata, len1*framesize); + if(len2 > 0) + memcpy(data[1].buf, rdata+len1*framesize, len2*framesize); + dstframes = len1 + len2; + } + + ll_ringbuffer_write_advance(self->Ring, dstframes); + + hr = IAudioCaptureClient_ReleaseBuffer(self->capture, numsamples); + if(FAILED(hr)) ERR("Failed to release capture buffer: 0x%08lx\n", hr); + } + } + + if(FAILED(hr)) + { + V0(device->Backend,lock)(); + aluHandleDisconnect(device, "Failed to capture samples: 0x%08lx", hr); + V0(device->Backend,unlock)(); + break; + } + + res = WaitForSingleObjectEx(self->NotifyEvent, 2000, FALSE); + if(res != WAIT_OBJECT_0) + ERR("WaitForSingleObjectEx error: 0x%lx\n", res); + } + + al_free(samples); + samples = NULL; + samplesmax = 0; + + CoUninitialize(); + return 0; +} + + +static ALCenum ALCwasapiCapture_open(ALCwasapiCapture *self, const ALCchar *deviceName) +{ + HRESULT hr = S_OK; + + self->NotifyEvent = CreateEventW(NULL, FALSE, FALSE, NULL); + self->MsgEvent = CreateEventW(NULL, FALSE, FALSE, NULL); + if(self->NotifyEvent == NULL || self->MsgEvent == NULL) + { + ERR("Failed to create message events: %lu\n", GetLastError()); + hr = E_FAIL; + } + + if(SUCCEEDED(hr)) + { + if(deviceName) + { + const DevMap *iter; + + if(VECTOR_SIZE(CaptureDevices) == 0) + { + ThreadRequest req = { self->MsgEvent, 0 }; + if(PostThreadMessage(ThreadID, WM_USER_Enumerate, (WPARAM)&req, CAPTURE_DEVICE_PROBE)) + (void)WaitForResponse(&req); + } + + hr = E_FAIL; +#define MATCH_NAME(i) (alstr_cmp_cstr((i)->name, deviceName) == 0 || \ + alstr_cmp_cstr((i)->endpoint_guid, deviceName) == 0) + VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_NAME); +#undef MATCH_NAME + if(iter == VECTOR_END(CaptureDevices)) + { + int len; + if((len=MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, NULL, 0)) > 0) + { + WCHAR *wname = calloc(sizeof(WCHAR), len); + MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, wname, len); +#define MATCH_NAME(i) (wcscmp((i)->devid, wname) == 0) + VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_NAME); +#undef MATCH_NAME + free(wname); + } + } + if(iter == VECTOR_END(CaptureDevices)) + WARN("Failed to find device name matching \"%s\"\n", deviceName); + else + { + ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice; + self->devid = strdupW(iter->devid); + alstr_copy(&device->DeviceName, iter->name); + hr = S_OK; + } + } + } + + if(SUCCEEDED(hr)) + { + ThreadRequest req = { self->MsgEvent, 0 }; + + hr = E_FAIL; + if(PostThreadMessage(ThreadID, WM_USER_OpenDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + hr = WaitForResponse(&req); + else + ERR("Failed to post thread message: %lu\n", GetLastError()); + } + + if(FAILED(hr)) + { + if(self->NotifyEvent != NULL) + CloseHandle(self->NotifyEvent); + self->NotifyEvent = NULL; + if(self->MsgEvent != NULL) + CloseHandle(self->MsgEvent); + self->MsgEvent = NULL; + + free(self->devid); + self->devid = NULL; + + ERR("Device init failed: 0x%08lx\n", hr); + return ALC_INVALID_VALUE; + } + else + { + ThreadRequest req = { self->MsgEvent, 0 }; + + hr = E_FAIL; + if(PostThreadMessage(ThreadID, WM_USER_ResetDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + hr = WaitForResponse(&req); + else + ERR("Failed to post thread message: %lu\n", GetLastError()); + + if(FAILED(hr)) + { + if(hr == E_OUTOFMEMORY) + return ALC_OUT_OF_MEMORY; + return ALC_INVALID_VALUE; + } + } + + return ALC_NO_ERROR; +} + +static HRESULT ALCwasapiCapture_openProxy(ALCwasapiCapture *self) +{ + ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice; + void *ptr; + HRESULT hr; + + hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr); + if(SUCCEEDED(hr)) + { + IMMDeviceEnumerator *Enumerator = ptr; + if(!self->devid) + hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(Enumerator, eCapture, eMultimedia, &self->mmdev); + else + hr = IMMDeviceEnumerator_GetDevice(Enumerator, self->devid, &self->mmdev); + IMMDeviceEnumerator_Release(Enumerator); + Enumerator = NULL; + } + if(SUCCEEDED(hr)) + hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr); + if(SUCCEEDED(hr)) + { + self->client = ptr; + if(alstr_empty(device->DeviceName)) + get_device_name_and_guid(self->mmdev, &device->DeviceName, NULL); + } + + if(FAILED(hr)) + { + if(self->mmdev) + IMMDevice_Release(self->mmdev); + self->mmdev = NULL; + } + + return hr; +} + + +static void ALCwasapiCapture_closeProxy(ALCwasapiCapture *self) +{ + if(self->client) + IAudioClient_Release(self->client); + self->client = NULL; + + if(self->mmdev) + IMMDevice_Release(self->mmdev); + self->mmdev = NULL; +} + + +static HRESULT ALCwasapiCapture_resetProxy(ALCwasapiCapture *self) +{ + ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice; + WAVEFORMATEXTENSIBLE OutputType; + WAVEFORMATEX *wfx = NULL; + enum DevFmtType srcType; + REFERENCE_TIME buf_time; + UINT32 buffer_len; + void *ptr = NULL; + HRESULT hr; + + if(self->client) + IAudioClient_Release(self->client); + self->client = NULL; + + hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr); + if(FAILED(hr)) + { + ERR("Failed to reactivate audio client: 0x%08lx\n", hr); + return hr; + } + self->client = ptr; + + buf_time = ScaleCeil(device->UpdateSize*device->NumUpdates, REFTIME_PER_SEC, + device->Frequency); + // Make sure buffer is at least 100ms in size + buf_time = maxu64(buf_time, REFTIME_PER_SEC/10); + device->UpdateSize = (ALuint)ScaleCeil(buf_time, device->Frequency, REFTIME_PER_SEC) / + device->NumUpdates; + + OutputType.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; + switch(device->FmtChans) + { + case DevFmtMono: + OutputType.Format.nChannels = 1; + OutputType.dwChannelMask = MONO; + break; + case DevFmtStereo: + OutputType.Format.nChannels = 2; + OutputType.dwChannelMask = STEREO; + break; + case DevFmtQuad: + OutputType.Format.nChannels = 4; + OutputType.dwChannelMask = QUAD; + break; + case DevFmtX51: + OutputType.Format.nChannels = 6; + OutputType.dwChannelMask = X5DOT1; + break; + case DevFmtX51Rear: + OutputType.Format.nChannels = 6; + OutputType.dwChannelMask = X5DOT1REAR; + break; + case DevFmtX61: + OutputType.Format.nChannels = 7; + OutputType.dwChannelMask = X6DOT1; + break; + case DevFmtX71: + OutputType.Format.nChannels = 8; + OutputType.dwChannelMask = X7DOT1; + break; + + case DevFmtAmbi3D: + return E_FAIL; + } + switch(device->FmtType) + { + /* NOTE: Signedness doesn't matter, the converter will handle it. */ + case DevFmtByte: + case DevFmtUByte: + OutputType.Format.wBitsPerSample = 8; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + break; + case DevFmtShort: + case DevFmtUShort: + OutputType.Format.wBitsPerSample = 16; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + break; + case DevFmtInt: + case DevFmtUInt: + OutputType.Format.wBitsPerSample = 32; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; + break; + case DevFmtFloat: + OutputType.Format.wBitsPerSample = 32; + OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT; + break; + } + OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample; + OutputType.Format.nSamplesPerSec = device->Frequency; + + OutputType.Format.nBlockAlign = OutputType.Format.nChannels * + OutputType.Format.wBitsPerSample / 8; + OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec * + OutputType.Format.nBlockAlign; + OutputType.Format.cbSize = sizeof(OutputType) - sizeof(OutputType.Format); + + hr = IAudioClient_IsFormatSupported(self->client, + AUDCLNT_SHAREMODE_SHARED, &OutputType.Format, &wfx + ); + if(FAILED(hr)) + { + ERR("Failed to check format support: 0x%08lx\n", hr); + return hr; + } + + DestroySampleConverter(&self->SampleConv); + DestroyChannelConverter(&self->ChannelConv); + + if(wfx != NULL) + { + if(!(wfx->nChannels == OutputType.Format.nChannels || + (wfx->nChannels == 1 && OutputType.Format.nChannels == 2) || + (wfx->nChannels == 2 && OutputType.Format.nChannels == 1))) + { + ERR("Failed to get matching format, wanted: %s %s %uhz, got: %d channel%s %d-bit %luhz\n", + DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType), + device->Frequency, wfx->nChannels, (wfx->nChannels==1)?"":"s", wfx->wBitsPerSample, + wfx->nSamplesPerSec); + CoTaskMemFree(wfx); + return E_FAIL; + } + + if(!MakeExtensible(&OutputType, wfx)) + { + CoTaskMemFree(wfx); + return E_FAIL; + } + CoTaskMemFree(wfx); + wfx = NULL; + } + + if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM)) + { + if(OutputType.Format.wBitsPerSample == 8) + srcType = DevFmtUByte; + else if(OutputType.Format.wBitsPerSample == 16) + srcType = DevFmtShort; + else if(OutputType.Format.wBitsPerSample == 32) + srcType = DevFmtInt; + else + { + ERR("Unhandled integer bit depth: %d\n", OutputType.Format.wBitsPerSample); + return E_FAIL; + } + } + else if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)) + { + if(OutputType.Format.wBitsPerSample == 32) + srcType = DevFmtFloat; + else + { + ERR("Unhandled float bit depth: %d\n", OutputType.Format.wBitsPerSample); + return E_FAIL; + } + } + else + { + ERR("Unhandled format sub-type\n"); + return E_FAIL; + } + + if(device->FmtChans == DevFmtMono && OutputType.Format.nChannels == 2) + { + self->ChannelConv = CreateChannelConverter(srcType, DevFmtStereo, + device->FmtChans); + if(!self->ChannelConv) + { + ERR("Failed to create %s stereo-to-mono converter\n", DevFmtTypeString(srcType)); + return E_FAIL; + } + TRACE("Created %s stereo-to-mono converter\n", DevFmtTypeString(srcType)); + /* The channel converter always outputs float, so change the input type + * for the resampler/type-converter. + */ + srcType = DevFmtFloat; + } + else if(device->FmtChans == DevFmtStereo && OutputType.Format.nChannels == 1) + { + self->ChannelConv = CreateChannelConverter(srcType, DevFmtMono, + device->FmtChans); + if(!self->ChannelConv) + { + ERR("Failed to create %s mono-to-stereo converter\n", DevFmtTypeString(srcType)); + return E_FAIL; + } + TRACE("Created %s mono-to-stereo converter\n", DevFmtTypeString(srcType)); + srcType = DevFmtFloat; + } + + if(device->Frequency != OutputType.Format.nSamplesPerSec || device->FmtType != srcType) + { + self->SampleConv = CreateSampleConverter( + srcType, device->FmtType, ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder), + OutputType.Format.nSamplesPerSec, device->Frequency + ); + if(!self->SampleConv) + { + ERR("Failed to create converter for %s format, dst: %s %uhz, src: %s %luhz\n", + DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType), + device->Frequency, DevFmtTypeString(srcType), OutputType.Format.nSamplesPerSec); + return E_FAIL; + } + TRACE("Created converter for %s format, dst: %s %uhz, src: %s %luhz\n", + DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType), + device->Frequency, DevFmtTypeString(srcType), OutputType.Format.nSamplesPerSec); + } + + hr = IAudioClient_Initialize(self->client, + AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_EVENTCALLBACK, + buf_time, 0, &OutputType.Format, NULL + ); + if(FAILED(hr)) + { + ERR("Failed to initialize audio client: 0x%08lx\n", hr); + return hr; + } + + hr = IAudioClient_GetBufferSize(self->client, &buffer_len); + if(FAILED(hr)) + { + ERR("Failed to get buffer size: 0x%08lx\n", hr); + return hr; + } + + buffer_len = maxu(device->UpdateSize*device->NumUpdates, buffer_len); + ll_ringbuffer_free(self->Ring); + self->Ring = ll_ringbuffer_create(buffer_len, + FrameSizeFromDevFmt(device->FmtChans, device->FmtType, device->AmbiOrder), + false + ); + if(!self->Ring) + { + ERR("Failed to allocate capture ring buffer\n"); + return E_OUTOFMEMORY; + } + + hr = IAudioClient_SetEventHandle(self->client, self->NotifyEvent); + if(FAILED(hr)) + { + ERR("Failed to set event handle: 0x%08lx\n", hr); + return hr; + } + + return hr; +} + + +static ALCboolean ALCwasapiCapture_start(ALCwasapiCapture *self) +{ + ThreadRequest req = { self->MsgEvent, 0 }; + HRESULT hr = E_FAIL; + + if(PostThreadMessage(ThreadID, WM_USER_StartDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + hr = WaitForResponse(&req); + + return SUCCEEDED(hr) ? ALC_TRUE : ALC_FALSE; +} + +static HRESULT ALCwasapiCapture_startProxy(ALCwasapiCapture *self) +{ + HRESULT hr; + void *ptr; + + ResetEvent(self->NotifyEvent); + hr = IAudioClient_Start(self->client); + if(FAILED(hr)) + { + ERR("Failed to start audio client: 0x%08lx\n", hr); + return hr; + } + + hr = IAudioClient_GetService(self->client, &IID_IAudioCaptureClient, &ptr); + if(SUCCEEDED(hr)) + { + self->capture = ptr; + ATOMIC_STORE(&self->killNow, 0, almemory_order_release); + if(althrd_create(&self->thread, ALCwasapiCapture_recordProc, self) != althrd_success) + { + ERR("Failed to start thread\n"); + IAudioCaptureClient_Release(self->capture); + self->capture = NULL; + hr = E_FAIL; + } + } + + if(FAILED(hr)) + { + IAudioClient_Stop(self->client); + IAudioClient_Reset(self->client); + } + + return hr; +} + + +static void ALCwasapiCapture_stop(ALCwasapiCapture *self) +{ + ThreadRequest req = { self->MsgEvent, 0 }; + if(PostThreadMessage(ThreadID, WM_USER_StopDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCwasapiProxy, self))) + (void)WaitForResponse(&req); +} + +static void ALCwasapiCapture_stopProxy(ALCwasapiCapture *self) +{ + int res; + + if(!self->capture) + return; + + ATOMIC_STORE_SEQ(&self->killNow, 1); + althrd_join(self->thread, &res); + + IAudioCaptureClient_Release(self->capture); + self->capture = NULL; + IAudioClient_Stop(self->client); + IAudioClient_Reset(self->client); +} + + +ALuint ALCwasapiCapture_availableSamples(ALCwasapiCapture *self) +{ + return (ALuint)ll_ringbuffer_read_space(self->Ring); +} + +ALCenum ALCwasapiCapture_captureSamples(ALCwasapiCapture *self, ALCvoid *buffer, ALCuint samples) +{ + if(ALCwasapiCapture_availableSamples(self) < samples) + return ALC_INVALID_VALUE; + ll_ringbuffer_read(self->Ring, buffer, samples); + return ALC_NO_ERROR; +} + + +typedef struct ALCwasapiBackendFactory { + DERIVE_FROM_TYPE(ALCbackendFactory); +} ALCwasapiBackendFactory; +#define ALCWASAPIBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCwasapiBackendFactory, ALCbackendFactory) } } + +static ALCboolean ALCwasapiBackendFactory_init(ALCwasapiBackendFactory *self); +static void ALCwasapiBackendFactory_deinit(ALCwasapiBackendFactory *self); +static ALCboolean ALCwasapiBackendFactory_querySupport(ALCwasapiBackendFactory *self, ALCbackend_Type type); +static void ALCwasapiBackendFactory_probe(ALCwasapiBackendFactory *self, enum DevProbe type, al_string *outnames); +static ALCbackend* ALCwasapiBackendFactory_createBackend(ALCwasapiBackendFactory *self, ALCdevice *device, ALCbackend_Type type); + +DEFINE_ALCBACKENDFACTORY_VTABLE(ALCwasapiBackendFactory); + + +static ALCboolean ALCwasapiBackendFactory_init(ALCwasapiBackendFactory* UNUSED(self)) +{ + static HRESULT InitResult; + + VECTOR_INIT(PlaybackDevices); + VECTOR_INIT(CaptureDevices); + + if(!ThreadHdl) + { + ThreadRequest req; + InitResult = E_FAIL; + + req.FinishedEvt = CreateEventW(NULL, FALSE, FALSE, NULL); + if(req.FinishedEvt == NULL) + ERR("Failed to create event: %lu\n", GetLastError()); + else + { + ThreadHdl = CreateThread(NULL, 0, ALCwasapiProxy_messageHandler, &req, 0, &ThreadID); + if(ThreadHdl != NULL) + InitResult = WaitForResponse(&req); + CloseHandle(req.FinishedEvt); + } + } + + return SUCCEEDED(InitResult) ? ALC_TRUE : ALC_FALSE; +} + +static void ALCwasapiBackendFactory_deinit(ALCwasapiBackendFactory* UNUSED(self)) +{ + clear_devlist(&PlaybackDevices); + VECTOR_DEINIT(PlaybackDevices); + + clear_devlist(&CaptureDevices); + VECTOR_DEINIT(CaptureDevices); + + if(ThreadHdl) + { + TRACE("Sending WM_QUIT to Thread %04lx\n", ThreadID); + PostThreadMessage(ThreadID, WM_QUIT, 0, 0); + CloseHandle(ThreadHdl); + ThreadHdl = NULL; + } +} + +static ALCboolean ALCwasapiBackendFactory_querySupport(ALCwasapiBackendFactory* UNUSED(self), ALCbackend_Type type) +{ + if(type == ALCbackend_Playback || type == ALCbackend_Capture) + return ALC_TRUE; + return ALC_FALSE; +} + +static void ALCwasapiBackendFactory_probe(ALCwasapiBackendFactory* UNUSED(self), enum DevProbe type, al_string *outnames) +{ + ThreadRequest req = { NULL, 0 }; + + req.FinishedEvt = CreateEventW(NULL, FALSE, FALSE, NULL); + if(req.FinishedEvt == NULL) + ERR("Failed to create event: %lu\n", GetLastError()); + else + { + HRESULT hr = E_FAIL; + if(PostThreadMessage(ThreadID, WM_USER_Enumerate, (WPARAM)&req, type)) + hr = WaitForResponse(&req); + if(SUCCEEDED(hr)) switch(type) + { +#define APPEND_OUTNAME(e) do { \ + if(!alstr_empty((e)->name)) \ + alstr_append_range(outnames, VECTOR_BEGIN((e)->name), \ + VECTOR_END((e)->name)+1); \ +} while(0) + case ALL_DEVICE_PROBE: + VECTOR_FOR_EACH(const DevMap, PlaybackDevices, APPEND_OUTNAME); + break; + + case CAPTURE_DEVICE_PROBE: + VECTOR_FOR_EACH(const DevMap, CaptureDevices, APPEND_OUTNAME); + break; +#undef APPEND_OUTNAME + } + CloseHandle(req.FinishedEvt); + req.FinishedEvt = NULL; + } +} + +static ALCbackend* ALCwasapiBackendFactory_createBackend(ALCwasapiBackendFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type) +{ + if(type == ALCbackend_Playback) + { + ALCwasapiPlayback *backend; + NEW_OBJ(backend, ALCwasapiPlayback)(device); + if(!backend) return NULL; + return STATIC_CAST(ALCbackend, backend); + } + if(type == ALCbackend_Capture) + { + ALCwasapiCapture *backend; + NEW_OBJ(backend, ALCwasapiCapture)(device); + if(!backend) return NULL; + return STATIC_CAST(ALCbackend, backend); + } + + return NULL; +} + + +ALCbackendFactory *ALCwasapiBackendFactory_getFactory(void) +{ + static ALCwasapiBackendFactory factory = ALCWASAPIBACKENDFACTORY_INITIALIZER; + return STATIC_CAST(ALCbackendFactory, &factory); +} |