🛠️🐜 Antkeeper superbuild with dependencies included
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843 lines
27 KiB
843 lines
27 KiB
/**
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* OpenAL cross platform audio library
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* Copyright (C) 1999-2007 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.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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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#include "dsound.h"
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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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 <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 <atomic>
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#include <cassert>
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#include <thread>
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#include <string>
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#include <vector>
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#include <algorithm>
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#include <functional>
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#include "alnumeric.h"
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#include "comptr.h"
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#include "core/device.h"
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#include "core/helpers.h"
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#include "core/logging.h"
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#include "dynload.h"
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#include "ringbuffer.h"
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#include "strutils.h"
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#include "threads.h"
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/* MinGW-w64 needs this for some unknown reason now. */
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using LPCWAVEFORMATEX = const WAVEFORMATEX*;
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#include <dsound.h>
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#ifndef DSSPEAKER_5POINT1
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# define DSSPEAKER_5POINT1 0x00000006
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#endif
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#ifndef DSSPEAKER_5POINT1_BACK
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# define DSSPEAKER_5POINT1_BACK 0x00000006
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#endif
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#ifndef DSSPEAKER_7POINT1
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# define DSSPEAKER_7POINT1 0x00000007
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#endif
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#ifndef DSSPEAKER_7POINT1_SURROUND
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# define DSSPEAKER_7POINT1_SURROUND 0x00000008
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#endif
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#ifndef DSSPEAKER_5POINT1_SURROUND
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# define DSSPEAKER_5POINT1_SURROUND 0x00000009
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#endif
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/* Some headers seem to define these as macros for __uuidof, which is annoying
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* since some headers don't declare them at all. Hopefully the ifdef is enough
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* to tell if they need to be declared.
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*/
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#ifndef KSDATAFORMAT_SUBTYPE_PCM
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DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
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#endif
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#ifndef KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
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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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#endif
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namespace {
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#define DEVNAME_HEAD "OpenAL Soft on "
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#ifdef HAVE_DYNLOAD
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void *ds_handle;
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HRESULT (WINAPI *pDirectSoundCreate)(const GUID *pcGuidDevice, IDirectSound **ppDS, IUnknown *pUnkOuter);
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HRESULT (WINAPI *pDirectSoundEnumerateW)(LPDSENUMCALLBACKW pDSEnumCallback, void *pContext);
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HRESULT (WINAPI *pDirectSoundCaptureCreate)(const GUID *pcGuidDevice, IDirectSoundCapture **ppDSC, IUnknown *pUnkOuter);
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HRESULT (WINAPI *pDirectSoundCaptureEnumerateW)(LPDSENUMCALLBACKW pDSEnumCallback, void *pContext);
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#ifndef IN_IDE_PARSER
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#define DirectSoundCreate pDirectSoundCreate
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#define DirectSoundEnumerateW pDirectSoundEnumerateW
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#define DirectSoundCaptureCreate pDirectSoundCaptureCreate
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#define DirectSoundCaptureEnumerateW pDirectSoundCaptureEnumerateW
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#endif
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#endif
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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_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
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#define X5DOT1REAR (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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#define MAX_UPDATES 128
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struct DevMap {
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std::string name;
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GUID guid;
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template<typename T0, typename T1>
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DevMap(T0&& name_, T1&& guid_)
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: name{std::forward<T0>(name_)}, guid{std::forward<T1>(guid_)}
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{ }
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};
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al::vector<DevMap> PlaybackDevices;
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al::vector<DevMap> CaptureDevices;
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bool checkName(const al::vector<DevMap> &list, const std::string &name)
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{
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auto match_name = [&name](const DevMap &entry) -> bool
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{ return entry.name == name; };
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return std::find_if(list.cbegin(), list.cend(), match_name) != list.cend();
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}
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BOOL CALLBACK DSoundEnumDevices(GUID *guid, const WCHAR *desc, const WCHAR*, void *data) noexcept
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{
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if(!guid)
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return TRUE;
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auto& devices = *static_cast<al::vector<DevMap>*>(data);
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const std::string basename{DEVNAME_HEAD + wstr_to_utf8(desc)};
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int count{1};
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std::string newname{basename};
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while(checkName(devices, newname))
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{
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newname = basename;
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newname += " #";
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newname += std::to_string(++count);
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}
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devices.emplace_back(std::move(newname), *guid);
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const DevMap &newentry = devices.back();
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OLECHAR *guidstr{nullptr};
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HRESULT hr{StringFromCLSID(*guid, &guidstr)};
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if(SUCCEEDED(hr))
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{
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TRACE("Got device \"%s\", GUID \"%ls\"\n", newentry.name.c_str(), guidstr);
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CoTaskMemFree(guidstr);
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}
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return TRUE;
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}
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struct DSoundPlayback final : public BackendBase {
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DSoundPlayback(DeviceBase *device) noexcept : BackendBase{device} { }
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~DSoundPlayback() override;
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int mixerProc();
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void open(const char *name) override;
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bool reset() override;
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void start() override;
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void stop() override;
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ComPtr<IDirectSound> mDS;
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ComPtr<IDirectSoundBuffer> mPrimaryBuffer;
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ComPtr<IDirectSoundBuffer> mBuffer;
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ComPtr<IDirectSoundNotify> mNotifies;
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HANDLE mNotifyEvent{nullptr};
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std::atomic<bool> mKillNow{true};
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std::thread mThread;
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DEF_NEWDEL(DSoundPlayback)
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};
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DSoundPlayback::~DSoundPlayback()
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{
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mNotifies = nullptr;
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mBuffer = nullptr;
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mPrimaryBuffer = nullptr;
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mDS = nullptr;
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if(mNotifyEvent)
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CloseHandle(mNotifyEvent);
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mNotifyEvent = nullptr;
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}
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FORCE_ALIGN int DSoundPlayback::mixerProc()
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{
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SetRTPriority();
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althrd_setname(MIXER_THREAD_NAME);
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DSBCAPS DSBCaps{};
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DSBCaps.dwSize = sizeof(DSBCaps);
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HRESULT err{mBuffer->GetCaps(&DSBCaps)};
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if(FAILED(err))
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{
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ERR("Failed to get buffer caps: 0x%lx\n", err);
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mDevice->handleDisconnect("Failure retrieving playback buffer info: 0x%lx", err);
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return 1;
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}
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const size_t FrameStep{mDevice->channelsFromFmt()};
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uint FrameSize{mDevice->frameSizeFromFmt()};
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DWORD FragSize{mDevice->UpdateSize * FrameSize};
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bool Playing{false};
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DWORD LastCursor{0u};
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mBuffer->GetCurrentPosition(&LastCursor, nullptr);
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while(!mKillNow.load(std::memory_order_acquire)
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&& mDevice->Connected.load(std::memory_order_acquire))
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{
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// Get current play cursor
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DWORD PlayCursor;
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mBuffer->GetCurrentPosition(&PlayCursor, nullptr);
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DWORD avail = (PlayCursor-LastCursor+DSBCaps.dwBufferBytes) % DSBCaps.dwBufferBytes;
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if(avail < FragSize)
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{
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if(!Playing)
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{
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err = mBuffer->Play(0, 0, DSBPLAY_LOOPING);
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if(FAILED(err))
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{
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ERR("Failed to play buffer: 0x%lx\n", err);
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mDevice->handleDisconnect("Failure starting playback: 0x%lx", err);
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return 1;
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}
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Playing = true;
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}
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avail = WaitForSingleObjectEx(mNotifyEvent, 2000, FALSE);
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if(avail != WAIT_OBJECT_0)
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ERR("WaitForSingleObjectEx error: 0x%lx\n", avail);
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continue;
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}
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avail -= avail%FragSize;
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// Lock output buffer
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void *WritePtr1, *WritePtr2;
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DWORD WriteCnt1{0u}, WriteCnt2{0u};
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err = mBuffer->Lock(LastCursor, avail, &WritePtr1, &WriteCnt1, &WritePtr2, &WriteCnt2, 0);
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// If the buffer is lost, restore it and lock
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if(err == DSERR_BUFFERLOST)
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{
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WARN("Buffer lost, restoring...\n");
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err = mBuffer->Restore();
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if(SUCCEEDED(err))
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{
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Playing = false;
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LastCursor = 0;
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err = mBuffer->Lock(0, DSBCaps.dwBufferBytes, &WritePtr1, &WriteCnt1,
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&WritePtr2, &WriteCnt2, 0);
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}
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}
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if(SUCCEEDED(err))
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{
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mDevice->renderSamples(WritePtr1, WriteCnt1/FrameSize, FrameStep);
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if(WriteCnt2 > 0)
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mDevice->renderSamples(WritePtr2, WriteCnt2/FrameSize, FrameStep);
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mBuffer->Unlock(WritePtr1, WriteCnt1, WritePtr2, WriteCnt2);
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}
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else
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{
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ERR("Buffer lock error: %#lx\n", err);
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mDevice->handleDisconnect("Failed to lock output buffer: 0x%lx", err);
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return 1;
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}
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// Update old write cursor location
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LastCursor += WriteCnt1+WriteCnt2;
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LastCursor %= DSBCaps.dwBufferBytes;
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}
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return 0;
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}
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void DSoundPlayback::open(const char *name)
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{
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HRESULT hr;
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if(PlaybackDevices.empty())
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{
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/* Initialize COM to prevent name truncation */
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HRESULT hrcom{CoInitialize(nullptr)};
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hr = DirectSoundEnumerateW(DSoundEnumDevices, &PlaybackDevices);
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if(FAILED(hr))
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ERR("Error enumerating DirectSound devices (0x%lx)!\n", hr);
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if(SUCCEEDED(hrcom))
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CoUninitialize();
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}
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const GUID *guid{nullptr};
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if(!name && !PlaybackDevices.empty())
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{
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name = PlaybackDevices[0].name.c_str();
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guid = &PlaybackDevices[0].guid;
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}
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else
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{
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auto iter = std::find_if(PlaybackDevices.cbegin(), PlaybackDevices.cend(),
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[name](const DevMap &entry) -> bool { return entry.name == name; });
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if(iter == PlaybackDevices.cend())
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{
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GUID id{};
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hr = CLSIDFromString(utf8_to_wstr(name).c_str(), &id);
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if(SUCCEEDED(hr))
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iter = std::find_if(PlaybackDevices.cbegin(), PlaybackDevices.cend(),
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[&id](const DevMap &entry) -> bool { return entry.guid == id; });
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if(iter == PlaybackDevices.cend())
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throw al::backend_exception{al::backend_error::NoDevice,
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"Device name \"%s\" not found", name};
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}
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guid = &iter->guid;
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}
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hr = DS_OK;
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if(!mNotifyEvent)
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{
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mNotifyEvent = CreateEventW(nullptr, FALSE, FALSE, nullptr);
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if(!mNotifyEvent) hr = E_FAIL;
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}
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//DirectSound Init code
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ComPtr<IDirectSound> ds;
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if(SUCCEEDED(hr))
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hr = DirectSoundCreate(guid, ds.getPtr(), nullptr);
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if(SUCCEEDED(hr))
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hr = ds->SetCooperativeLevel(GetForegroundWindow(), DSSCL_PRIORITY);
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if(FAILED(hr))
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throw al::backend_exception{al::backend_error::DeviceError, "Device init failed: 0x%08lx",
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hr};
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mNotifies = nullptr;
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mBuffer = nullptr;
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mPrimaryBuffer = nullptr;
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mDS = std::move(ds);
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mDevice->DeviceName = name;
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}
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bool DSoundPlayback::reset()
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{
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mNotifies = nullptr;
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mBuffer = nullptr;
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mPrimaryBuffer = nullptr;
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switch(mDevice->FmtType)
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{
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case DevFmtByte:
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mDevice->FmtType = DevFmtUByte;
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break;
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case DevFmtFloat:
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if(mDevice->Flags.test(SampleTypeRequest))
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break;
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/* fall-through */
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case DevFmtUShort:
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mDevice->FmtType = DevFmtShort;
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break;
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case DevFmtUInt:
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mDevice->FmtType = DevFmtInt;
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break;
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case DevFmtUByte:
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case DevFmtShort:
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case DevFmtInt:
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break;
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}
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WAVEFORMATEXTENSIBLE OutputType{};
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DWORD speakers;
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HRESULT hr{mDS->GetSpeakerConfig(&speakers)};
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if(SUCCEEDED(hr))
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{
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speakers = DSSPEAKER_CONFIG(speakers);
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if(!mDevice->Flags.test(ChannelsRequest))
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{
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if(speakers == DSSPEAKER_MONO)
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mDevice->FmtChans = DevFmtMono;
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else if(speakers == DSSPEAKER_STEREO || speakers == DSSPEAKER_HEADPHONE)
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mDevice->FmtChans = DevFmtStereo;
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else if(speakers == DSSPEAKER_QUAD)
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mDevice->FmtChans = DevFmtQuad;
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else if(speakers == DSSPEAKER_5POINT1_SURROUND || speakers == DSSPEAKER_5POINT1_BACK)
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mDevice->FmtChans = DevFmtX51;
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else if(speakers == DSSPEAKER_7POINT1 || speakers == DSSPEAKER_7POINT1_SURROUND)
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mDevice->FmtChans = DevFmtX71;
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else
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ERR("Unknown system speaker config: 0x%lx\n", speakers);
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}
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mDevice->Flags.set(DirectEar, (speakers == DSSPEAKER_HEADPHONE));
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switch(mDevice->FmtChans)
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{
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case DevFmtMono: OutputType.dwChannelMask = MONO; break;
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case DevFmtAmbi3D: mDevice->FmtChans = DevFmtStereo;
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/*fall-through*/
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case DevFmtStereo: OutputType.dwChannelMask = STEREO; break;
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case DevFmtQuad: OutputType.dwChannelMask = QUAD; break;
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case DevFmtX51: OutputType.dwChannelMask = X5DOT1; break;
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case DevFmtX61: OutputType.dwChannelMask = X6DOT1; break;
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case DevFmtX71: OutputType.dwChannelMask = X7DOT1; break;
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}
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retry_open:
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hr = S_OK;
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OutputType.Format.wFormatTag = WAVE_FORMAT_PCM;
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OutputType.Format.nChannels = static_cast<WORD>(mDevice->channelsFromFmt());
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OutputType.Format.wBitsPerSample = static_cast<WORD>(mDevice->bytesFromFmt() * 8);
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OutputType.Format.nBlockAlign = static_cast<WORD>(OutputType.Format.nChannels *
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OutputType.Format.wBitsPerSample / 8);
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OutputType.Format.nSamplesPerSec = mDevice->Frequency;
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OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec *
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OutputType.Format.nBlockAlign;
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OutputType.Format.cbSize = 0;
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}
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if(OutputType.Format.nChannels > 2 || mDevice->FmtType == DevFmtFloat)
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{
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OutputType.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
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OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
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OutputType.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
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if(mDevice->FmtType == DevFmtFloat)
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OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
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else
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OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
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mPrimaryBuffer = nullptr;
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}
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else
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{
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if(SUCCEEDED(hr) && !mPrimaryBuffer)
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{
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DSBUFFERDESC DSBDescription{};
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DSBDescription.dwSize = sizeof(DSBDescription);
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DSBDescription.dwFlags = DSBCAPS_PRIMARYBUFFER;
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hr = mDS->CreateSoundBuffer(&DSBDescription, mPrimaryBuffer.getPtr(), nullptr);
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}
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if(SUCCEEDED(hr))
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hr = mPrimaryBuffer->SetFormat(&OutputType.Format);
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}
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if(SUCCEEDED(hr))
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{
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uint num_updates{mDevice->BufferSize / mDevice->UpdateSize};
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if(num_updates > MAX_UPDATES)
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num_updates = MAX_UPDATES;
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mDevice->BufferSize = mDevice->UpdateSize * num_updates;
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DSBUFFERDESC DSBDescription{};
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DSBDescription.dwSize = sizeof(DSBDescription);
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DSBDescription.dwFlags = DSBCAPS_CTRLPOSITIONNOTIFY | DSBCAPS_GETCURRENTPOSITION2
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| DSBCAPS_GLOBALFOCUS;
|
|
DSBDescription.dwBufferBytes = mDevice->BufferSize * OutputType.Format.nBlockAlign;
|
|
DSBDescription.lpwfxFormat = &OutputType.Format;
|
|
|
|
hr = mDS->CreateSoundBuffer(&DSBDescription, mBuffer.getPtr(), nullptr);
|
|
if(FAILED(hr) && mDevice->FmtType == DevFmtFloat)
|
|
{
|
|
mDevice->FmtType = DevFmtShort;
|
|
goto retry_open;
|
|
}
|
|
}
|
|
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
void *ptr;
|
|
hr = mBuffer->QueryInterface(IID_IDirectSoundNotify, &ptr);
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
mNotifies = ComPtr<IDirectSoundNotify>{static_cast<IDirectSoundNotify*>(ptr)};
|
|
|
|
uint num_updates{mDevice->BufferSize / mDevice->UpdateSize};
|
|
assert(num_updates <= MAX_UPDATES);
|
|
|
|
std::array<DSBPOSITIONNOTIFY,MAX_UPDATES> nots;
|
|
for(uint i{0};i < num_updates;++i)
|
|
{
|
|
nots[i].dwOffset = i * mDevice->UpdateSize * OutputType.Format.nBlockAlign;
|
|
nots[i].hEventNotify = mNotifyEvent;
|
|
}
|
|
if(mNotifies->SetNotificationPositions(num_updates, nots.data()) != DS_OK)
|
|
hr = E_FAIL;
|
|
}
|
|
}
|
|
|
|
if(FAILED(hr))
|
|
{
|
|
mNotifies = nullptr;
|
|
mBuffer = nullptr;
|
|
mPrimaryBuffer = nullptr;
|
|
return false;
|
|
}
|
|
|
|
ResetEvent(mNotifyEvent);
|
|
setChannelOrderFromWFXMask(OutputType.dwChannelMask);
|
|
|
|
return true;
|
|
}
|
|
|
|
void DSoundPlayback::start()
|
|
{
|
|
try {
|
|
mKillNow.store(false, std::memory_order_release);
|
|
mThread = std::thread{std::mem_fn(&DSoundPlayback::mixerProc), this};
|
|
}
|
|
catch(std::exception& e) {
|
|
throw al::backend_exception{al::backend_error::DeviceError,
|
|
"Failed to start mixing thread: %s", e.what()};
|
|
}
|
|
}
|
|
|
|
void DSoundPlayback::stop()
|
|
{
|
|
if(mKillNow.exchange(true, std::memory_order_acq_rel) || !mThread.joinable())
|
|
return;
|
|
mThread.join();
|
|
|
|
mBuffer->Stop();
|
|
}
|
|
|
|
|
|
struct DSoundCapture final : public BackendBase {
|
|
DSoundCapture(DeviceBase *device) noexcept : BackendBase{device} { }
|
|
~DSoundCapture() override;
|
|
|
|
void open(const char *name) override;
|
|
void start() override;
|
|
void stop() override;
|
|
void captureSamples(al::byte *buffer, uint samples) override;
|
|
uint availableSamples() override;
|
|
|
|
ComPtr<IDirectSoundCapture> mDSC;
|
|
ComPtr<IDirectSoundCaptureBuffer> mDSCbuffer;
|
|
DWORD mBufferBytes{0u};
|
|
DWORD mCursor{0u};
|
|
|
|
RingBufferPtr mRing;
|
|
|
|
DEF_NEWDEL(DSoundCapture)
|
|
};
|
|
|
|
DSoundCapture::~DSoundCapture()
|
|
{
|
|
if(mDSCbuffer)
|
|
{
|
|
mDSCbuffer->Stop();
|
|
mDSCbuffer = nullptr;
|
|
}
|
|
mDSC = nullptr;
|
|
}
|
|
|
|
|
|
void DSoundCapture::open(const char *name)
|
|
{
|
|
HRESULT hr;
|
|
if(CaptureDevices.empty())
|
|
{
|
|
/* Initialize COM to prevent name truncation */
|
|
HRESULT hrcom{CoInitialize(nullptr)};
|
|
hr = DirectSoundCaptureEnumerateW(DSoundEnumDevices, &CaptureDevices);
|
|
if(FAILED(hr))
|
|
ERR("Error enumerating DirectSound devices (0x%lx)!\n", hr);
|
|
if(SUCCEEDED(hrcom))
|
|
CoUninitialize();
|
|
}
|
|
|
|
const GUID *guid{nullptr};
|
|
if(!name && !CaptureDevices.empty())
|
|
{
|
|
name = CaptureDevices[0].name.c_str();
|
|
guid = &CaptureDevices[0].guid;
|
|
}
|
|
else
|
|
{
|
|
auto iter = std::find_if(CaptureDevices.cbegin(), CaptureDevices.cend(),
|
|
[name](const DevMap &entry) -> bool { return entry.name == name; });
|
|
if(iter == CaptureDevices.cend())
|
|
{
|
|
GUID id{};
|
|
hr = CLSIDFromString(utf8_to_wstr(name).c_str(), &id);
|
|
if(SUCCEEDED(hr))
|
|
iter = std::find_if(CaptureDevices.cbegin(), CaptureDevices.cend(),
|
|
[&id](const DevMap &entry) -> bool { return entry.guid == id; });
|
|
if(iter == CaptureDevices.cend())
|
|
throw al::backend_exception{al::backend_error::NoDevice,
|
|
"Device name \"%s\" not found", name};
|
|
}
|
|
guid = &iter->guid;
|
|
}
|
|
|
|
switch(mDevice->FmtType)
|
|
{
|
|
case DevFmtByte:
|
|
case DevFmtUShort:
|
|
case DevFmtUInt:
|
|
WARN("%s capture samples not supported\n", DevFmtTypeString(mDevice->FmtType));
|
|
throw al::backend_exception{al::backend_error::DeviceError,
|
|
"%s capture samples not supported", DevFmtTypeString(mDevice->FmtType)};
|
|
|
|
case DevFmtUByte:
|
|
case DevFmtShort:
|
|
case DevFmtInt:
|
|
case DevFmtFloat:
|
|
break;
|
|
}
|
|
|
|
WAVEFORMATEXTENSIBLE InputType{};
|
|
switch(mDevice->FmtChans)
|
|
{
|
|
case DevFmtMono: InputType.dwChannelMask = MONO; break;
|
|
case DevFmtStereo: InputType.dwChannelMask = STEREO; break;
|
|
case DevFmtQuad: InputType.dwChannelMask = QUAD; break;
|
|
case DevFmtX51: InputType.dwChannelMask = X5DOT1; break;
|
|
case DevFmtX61: InputType.dwChannelMask = X6DOT1; break;
|
|
case DevFmtX71: InputType.dwChannelMask = X7DOT1; break;
|
|
case DevFmtAmbi3D:
|
|
WARN("%s capture not supported\n", DevFmtChannelsString(mDevice->FmtChans));
|
|
throw al::backend_exception{al::backend_error::DeviceError, "%s capture not supported",
|
|
DevFmtChannelsString(mDevice->FmtChans)};
|
|
}
|
|
|
|
InputType.Format.wFormatTag = WAVE_FORMAT_PCM;
|
|
InputType.Format.nChannels = static_cast<WORD>(mDevice->channelsFromFmt());
|
|
InputType.Format.wBitsPerSample = static_cast<WORD>(mDevice->bytesFromFmt() * 8);
|
|
InputType.Format.nBlockAlign = static_cast<WORD>(InputType.Format.nChannels *
|
|
InputType.Format.wBitsPerSample / 8);
|
|
InputType.Format.nSamplesPerSec = mDevice->Frequency;
|
|
InputType.Format.nAvgBytesPerSec = InputType.Format.nSamplesPerSec *
|
|
InputType.Format.nBlockAlign;
|
|
InputType.Format.cbSize = 0;
|
|
InputType.Samples.wValidBitsPerSample = InputType.Format.wBitsPerSample;
|
|
if(mDevice->FmtType == DevFmtFloat)
|
|
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
|
|
else
|
|
InputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
|
|
|
|
if(InputType.Format.nChannels > 2 || mDevice->FmtType == DevFmtFloat)
|
|
{
|
|
InputType.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
|
|
InputType.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
|
|
}
|
|
|
|
uint samples{mDevice->BufferSize};
|
|
samples = maxu(samples, 100 * mDevice->Frequency / 1000);
|
|
|
|
DSCBUFFERDESC DSCBDescription{};
|
|
DSCBDescription.dwSize = sizeof(DSCBDescription);
|
|
DSCBDescription.dwFlags = 0;
|
|
DSCBDescription.dwBufferBytes = samples * InputType.Format.nBlockAlign;
|
|
DSCBDescription.lpwfxFormat = &InputType.Format;
|
|
|
|
//DirectSoundCapture Init code
|
|
hr = DirectSoundCaptureCreate(guid, mDSC.getPtr(), nullptr);
|
|
if(SUCCEEDED(hr))
|
|
mDSC->CreateCaptureBuffer(&DSCBDescription, mDSCbuffer.getPtr(), nullptr);
|
|
if(SUCCEEDED(hr))
|
|
mRing = RingBuffer::Create(mDevice->BufferSize, InputType.Format.nBlockAlign, false);
|
|
|
|
if(FAILED(hr))
|
|
{
|
|
mRing = nullptr;
|
|
mDSCbuffer = nullptr;
|
|
mDSC = nullptr;
|
|
|
|
throw al::backend_exception{al::backend_error::DeviceError, "Device init failed: 0x%08lx",
|
|
hr};
|
|
}
|
|
|
|
mBufferBytes = DSCBDescription.dwBufferBytes;
|
|
setChannelOrderFromWFXMask(InputType.dwChannelMask);
|
|
|
|
mDevice->DeviceName = name;
|
|
}
|
|
|
|
void DSoundCapture::start()
|
|
{
|
|
const HRESULT hr{mDSCbuffer->Start(DSCBSTART_LOOPING)};
|
|
if(FAILED(hr))
|
|
throw al::backend_exception{al::backend_error::DeviceError,
|
|
"Failure starting capture: 0x%lx", hr};
|
|
}
|
|
|
|
void DSoundCapture::stop()
|
|
{
|
|
HRESULT hr{mDSCbuffer->Stop()};
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("stop failed: 0x%08lx\n", hr);
|
|
mDevice->handleDisconnect("Failure stopping capture: 0x%lx", hr);
|
|
}
|
|
}
|
|
|
|
void DSoundCapture::captureSamples(al::byte *buffer, uint samples)
|
|
{ mRing->read(buffer, samples); }
|
|
|
|
uint DSoundCapture::availableSamples()
|
|
{
|
|
if(!mDevice->Connected.load(std::memory_order_acquire))
|
|
return static_cast<uint>(mRing->readSpace());
|
|
|
|
const uint FrameSize{mDevice->frameSizeFromFmt()};
|
|
const DWORD BufferBytes{mBufferBytes};
|
|
const DWORD LastCursor{mCursor};
|
|
|
|
DWORD ReadCursor{};
|
|
void *ReadPtr1{}, *ReadPtr2{};
|
|
DWORD ReadCnt1{}, ReadCnt2{};
|
|
HRESULT hr{mDSCbuffer->GetCurrentPosition(nullptr, &ReadCursor)};
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
const DWORD NumBytes{(BufferBytes+ReadCursor-LastCursor) % BufferBytes};
|
|
if(!NumBytes) return static_cast<uint>(mRing->readSpace());
|
|
hr = mDSCbuffer->Lock(LastCursor, NumBytes, &ReadPtr1, &ReadCnt1, &ReadPtr2, &ReadCnt2, 0);
|
|
}
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
mRing->write(ReadPtr1, ReadCnt1/FrameSize);
|
|
if(ReadPtr2 != nullptr && ReadCnt2 > 0)
|
|
mRing->write(ReadPtr2, ReadCnt2/FrameSize);
|
|
hr = mDSCbuffer->Unlock(ReadPtr1, ReadCnt1, ReadPtr2, ReadCnt2);
|
|
mCursor = ReadCursor;
|
|
}
|
|
|
|
if(FAILED(hr))
|
|
{
|
|
ERR("update failed: 0x%08lx\n", hr);
|
|
mDevice->handleDisconnect("Failure retrieving capture data: 0x%lx", hr);
|
|
}
|
|
|
|
return static_cast<uint>(mRing->readSpace());
|
|
}
|
|
|
|
} // namespace
|
|
|
|
|
|
BackendFactory &DSoundBackendFactory::getFactory()
|
|
{
|
|
static DSoundBackendFactory factory{};
|
|
return factory;
|
|
}
|
|
|
|
bool DSoundBackendFactory::init()
|
|
{
|
|
#ifdef HAVE_DYNLOAD
|
|
if(!ds_handle)
|
|
{
|
|
ds_handle = LoadLib("dsound.dll");
|
|
if(!ds_handle)
|
|
{
|
|
ERR("Failed to load dsound.dll\n");
|
|
return false;
|
|
}
|
|
|
|
#define LOAD_FUNC(f) do { \
|
|
p##f = reinterpret_cast<decltype(p##f)>(GetSymbol(ds_handle, #f)); \
|
|
if(!p##f) \
|
|
{ \
|
|
CloseLib(ds_handle); \
|
|
ds_handle = nullptr; \
|
|
return false; \
|
|
} \
|
|
} while(0)
|
|
LOAD_FUNC(DirectSoundCreate);
|
|
LOAD_FUNC(DirectSoundEnumerateW);
|
|
LOAD_FUNC(DirectSoundCaptureCreate);
|
|
LOAD_FUNC(DirectSoundCaptureEnumerateW);
|
|
#undef LOAD_FUNC
|
|
}
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
bool DSoundBackendFactory::querySupport(BackendType type)
|
|
{ return (type == BackendType::Playback || type == BackendType::Capture); }
|
|
|
|
std::string DSoundBackendFactory::probe(BackendType type)
|
|
{
|
|
std::string outnames;
|
|
auto add_device = [&outnames](const DevMap &entry) -> void
|
|
{
|
|
/* +1 to also append the null char (to ensure a null-separated list and
|
|
* double-null terminated list).
|
|
*/
|
|
outnames.append(entry.name.c_str(), entry.name.length()+1);
|
|
};
|
|
|
|
/* Initialize COM to prevent name truncation */
|
|
HRESULT hr;
|
|
HRESULT hrcom{CoInitialize(nullptr)};
|
|
switch(type)
|
|
{
|
|
case BackendType::Playback:
|
|
PlaybackDevices.clear();
|
|
hr = DirectSoundEnumerateW(DSoundEnumDevices, &PlaybackDevices);
|
|
if(FAILED(hr))
|
|
ERR("Error enumerating DirectSound playback devices (0x%lx)!\n", hr);
|
|
std::for_each(PlaybackDevices.cbegin(), PlaybackDevices.cend(), add_device);
|
|
break;
|
|
|
|
case BackendType::Capture:
|
|
CaptureDevices.clear();
|
|
hr = DirectSoundCaptureEnumerateW(DSoundEnumDevices, &CaptureDevices);
|
|
if(FAILED(hr))
|
|
ERR("Error enumerating DirectSound capture devices (0x%lx)!\n", hr);
|
|
std::for_each(CaptureDevices.cbegin(), CaptureDevices.cend(), add_device);
|
|
break;
|
|
}
|
|
if(SUCCEEDED(hrcom))
|
|
CoUninitialize();
|
|
|
|
return outnames;
|
|
}
|
|
|
|
BackendPtr DSoundBackendFactory::createBackend(DeviceBase *device, BackendType type)
|
|
{
|
|
if(type == BackendType::Playback)
|
|
return BackendPtr{new DSoundPlayback{device}};
|
|
if(type == BackendType::Capture)
|
|
return BackendPtr{new DSoundCapture{device}};
|
|
return nullptr;
|
|
}
|