🛠️🐜 Antkeeper superbuild with dependencies included
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981 lines
42 KiB
981 lines
42 KiB
/**
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* OpenAL cross platform audio library
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* Copyright (C) 1999-2010 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 <cmath>
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#include <cstdlib>
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#include <cstring>
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#include <cctype>
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#include <cassert>
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#include <cmath>
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#include <chrono>
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#include <numeric>
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#include <algorithm>
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#include <functional>
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#include "alMain.h"
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#include "alAuxEffectSlot.h"
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#include "alu.h"
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#include "alconfig.h"
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#include "ambdec.h"
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#include "bformatdec.h"
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#include "filters/splitter.h"
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#include "uhjfilter.h"
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#include "bs2b.h"
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#include "alspan.h"
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constexpr std::array<float,MAX_AMBI_CHANNELS> AmbiScale::FromN3D;
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constexpr std::array<float,MAX_AMBI_CHANNELS> AmbiScale::FromSN3D;
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constexpr std::array<float,MAX_AMBI_CHANNELS> AmbiScale::FromFuMa;
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constexpr std::array<int,MAX_AMBI_CHANNELS> AmbiIndex::FromFuMa;
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constexpr std::array<int,MAX_AMBI_CHANNELS> AmbiIndex::FromACN;
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constexpr std::array<int,MAX_AMBI2D_CHANNELS> AmbiIndex::From2D;
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constexpr std::array<int,MAX_AMBI_CHANNELS> AmbiIndex::From3D;
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namespace {
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using namespace std::placeholders;
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using std::chrono::seconds;
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using std::chrono::nanoseconds;
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inline const char *GetLabelFromChannel(Channel channel)
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{
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switch(channel)
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{
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case FrontLeft: return "front-left";
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case FrontRight: return "front-right";
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case FrontCenter: return "front-center";
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case LFE: return "lfe";
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case BackLeft: return "back-left";
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case BackRight: return "back-right";
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case BackCenter: return "back-center";
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case SideLeft: return "side-left";
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case SideRight: return "side-right";
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case UpperFrontLeft: return "upper-front-left";
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case UpperFrontRight: return "upper-front-right";
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case UpperBackLeft: return "upper-back-left";
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case UpperBackRight: return "upper-back-right";
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case LowerFrontLeft: return "lower-front-left";
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case LowerFrontRight: return "lower-front-right";
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case LowerBackLeft: return "lower-back-left";
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case LowerBackRight: return "lower-back-right";
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case Aux0: return "aux-0";
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case Aux1: return "aux-1";
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case Aux2: return "aux-2";
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case Aux3: return "aux-3";
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case Aux4: return "aux-4";
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case Aux5: return "aux-5";
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case Aux6: return "aux-6";
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case Aux7: return "aux-7";
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case Aux8: return "aux-8";
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case Aux9: return "aux-9";
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case Aux10: return "aux-10";
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case Aux11: return "aux-11";
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case Aux12: return "aux-12";
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case Aux13: return "aux-13";
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case Aux14: return "aux-14";
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case Aux15: return "aux-15";
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case MaxChannels: break;
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}
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return "(unknown)";
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}
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struct ChannelMap {
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Channel ChanName;
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ALfloat Config[MAX_AMBI2D_CHANNELS];
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};
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bool MakeSpeakerMap(ALCdevice *device, const AmbDecConf *conf, ALsizei (&speakermap)[MAX_OUTPUT_CHANNELS])
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{
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auto map_spkr = [device](const AmbDecConf::SpeakerConf &speaker) -> ALsizei
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{
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/* NOTE: AmbDec does not define any standard speaker names, however
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* for this to work we have to by able to find the output channel
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* the speaker definition corresponds to. Therefore, OpenAL Soft
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* requires these channel labels to be recognized:
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*
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* LF = Front left
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* RF = Front right
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* LS = Side left
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* RS = Side right
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* LB = Back left
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* RB = Back right
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* CE = Front center
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* CB = Back center
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*
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* Additionally, surround51 will acknowledge back speakers for side
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* channels, and surround51rear will acknowledge side speakers for
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* back channels, to avoid issues with an ambdec expecting 5.1 to
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* use the side channels when the device is configured for back,
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* and vice-versa.
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*/
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Channel ch{};
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if(speaker.Name == "LF")
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ch = FrontLeft;
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else if(speaker.Name == "RF")
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ch = FrontRight;
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else if(speaker.Name == "CE")
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ch = FrontCenter;
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else if(speaker.Name == "LS")
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{
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if(device->FmtChans == DevFmtX51Rear)
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ch = BackLeft;
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else
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ch = SideLeft;
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}
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else if(speaker.Name == "RS")
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{
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if(device->FmtChans == DevFmtX51Rear)
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ch = BackRight;
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else
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ch = SideRight;
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}
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else if(speaker.Name == "LB")
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{
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if(device->FmtChans == DevFmtX51)
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ch = SideLeft;
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else
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ch = BackLeft;
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}
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else if(speaker.Name == "RB")
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{
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if(device->FmtChans == DevFmtX51)
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ch = SideRight;
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else
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ch = BackRight;
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}
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else if(speaker.Name == "CB")
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ch = BackCenter;
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else
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{
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const char *name{speaker.Name.c_str()};
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unsigned int n;
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char c;
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if(sscanf(name, "AUX%u%c", &n, &c) == 1 && n < 16)
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ch = static_cast<Channel>(Aux0+n);
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else
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{
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ERR("AmbDec speaker label \"%s\" not recognized\n", name);
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return -1;
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}
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}
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const int chidx{GetChannelIdxByName(device->RealOut, ch)};
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if(chidx == -1)
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ERR("Failed to lookup AmbDec speaker label %s\n", speaker.Name.c_str());
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return chidx;
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};
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std::transform(conf->Speakers.begin(), conf->Speakers.end(), std::begin(speakermap), map_spkr);
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/* Return success if no invalid entries are found. */
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auto speakermap_end = std::begin(speakermap) + conf->Speakers.size();
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return std::find(std::begin(speakermap), speakermap_end, -1) == speakermap_end;
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}
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constexpr ChannelMap MonoCfg[1] = {
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{ FrontCenter, { 1.0f } },
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}, StereoCfg[2] = {
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{ FrontLeft, { 5.00000000e-1f, 2.88675135e-1f, 5.52305643e-2f } },
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{ FrontRight, { 5.00000000e-1f, -2.88675135e-1f, 5.52305643e-2f } },
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}, QuadCfg[4] = {
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{ BackLeft, { 3.53553391e-1f, 2.04124145e-1f, -2.04124145e-1f } },
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{ FrontLeft, { 3.53553391e-1f, 2.04124145e-1f, 2.04124145e-1f } },
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{ FrontRight, { 3.53553391e-1f, -2.04124145e-1f, 2.04124145e-1f } },
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{ BackRight, { 3.53553391e-1f, -2.04124145e-1f, -2.04124145e-1f } },
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}, X51SideCfg[4] = {
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{ SideLeft, { 3.33000782e-1f, 1.89084803e-1f, -2.00042375e-1f, -2.12307769e-2f, -1.14579885e-2f } },
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{ FrontLeft, { 1.88542860e-1f, 1.27709292e-1f, 1.66295695e-1f, 7.30571517e-2f, 2.10901184e-2f } },
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{ FrontRight, { 1.88542860e-1f, -1.27709292e-1f, 1.66295695e-1f, -7.30571517e-2f, 2.10901184e-2f } },
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{ SideRight, { 3.33000782e-1f, -1.89084803e-1f, -2.00042375e-1f, 2.12307769e-2f, -1.14579885e-2f } },
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}, X51RearCfg[4] = {
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{ BackLeft, { 3.33000782e-1f, 1.89084803e-1f, -2.00042375e-1f, -2.12307769e-2f, -1.14579885e-2f } },
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{ FrontLeft, { 1.88542860e-1f, 1.27709292e-1f, 1.66295695e-1f, 7.30571517e-2f, 2.10901184e-2f } },
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{ FrontRight, { 1.88542860e-1f, -1.27709292e-1f, 1.66295695e-1f, -7.30571517e-2f, 2.10901184e-2f } },
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{ BackRight, { 3.33000782e-1f, -1.89084803e-1f, -2.00042375e-1f, 2.12307769e-2f, -1.14579885e-2f } },
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}, X61Cfg[6] = {
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{ SideLeft, { 2.04460341e-1f, 2.17177926e-1f, -4.39996780e-2f, -2.60790269e-2f, -6.87239792e-2f } },
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{ FrontLeft, { 1.58923161e-1f, 9.21772680e-2f, 1.59658796e-1f, 6.66278083e-2f, 3.84686854e-2f } },
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{ FrontRight, { 1.58923161e-1f, -9.21772680e-2f, 1.59658796e-1f, -6.66278083e-2f, 3.84686854e-2f } },
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{ SideRight, { 2.04460341e-1f, -2.17177926e-1f, -4.39996780e-2f, 2.60790269e-2f, -6.87239792e-2f } },
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{ BackCenter, { 2.50001688e-1f, 0.00000000e+0f, -2.50000094e-1f, 0.00000000e+0f, 6.05133395e-2f } },
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}, X71Cfg[6] = {
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{ BackLeft, { 2.04124145e-1f, 1.08880247e-1f, -1.88586120e-1f, -1.29099444e-1f, 7.45355993e-2f, 3.73460789e-2f, 0.00000000e+0f } },
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{ SideLeft, { 2.04124145e-1f, 2.17760495e-1f, 0.00000000e+0f, 0.00000000e+0f, -1.49071198e-1f, -3.73460789e-2f, 0.00000000e+0f } },
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{ FrontLeft, { 2.04124145e-1f, 1.08880247e-1f, 1.88586120e-1f, 1.29099444e-1f, 7.45355993e-2f, 3.73460789e-2f, 0.00000000e+0f } },
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{ FrontRight, { 2.04124145e-1f, -1.08880247e-1f, 1.88586120e-1f, -1.29099444e-1f, 7.45355993e-2f, -3.73460789e-2f, 0.00000000e+0f } },
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{ SideRight, { 2.04124145e-1f, -2.17760495e-1f, 0.00000000e+0f, 0.00000000e+0f, -1.49071198e-1f, 3.73460789e-2f, 0.00000000e+0f } },
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{ BackRight, { 2.04124145e-1f, -1.08880247e-1f, -1.88586120e-1f, 1.29099444e-1f, 7.45355993e-2f, -3.73460789e-2f, 0.00000000e+0f } },
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};
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void InitNearFieldCtrl(ALCdevice *device, ALfloat ctrl_dist, ALsizei order, const ALsizei *RESTRICT chans_per_order)
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{
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/* NFC is only used when AvgSpeakerDist is greater than 0. */
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const char *devname{device->DeviceName.c_str()};
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if(!GetConfigValueBool(devname, "decoder", "nfc", 0) || !(ctrl_dist > 0.0f))
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return;
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device->AvgSpeakerDist = minf(ctrl_dist, 10.0f);
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TRACE("Using near-field reference distance: %.2f meters\n", device->AvgSpeakerDist);
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auto iter = std::copy(chans_per_order, chans_per_order+order+1,
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std::begin(device->NumChannelsPerOrder));
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std::fill(iter, std::end(device->NumChannelsPerOrder), 0);
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}
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void InitDistanceComp(ALCdevice *device, const AmbDecConf *conf, const ALsizei (&speakermap)[MAX_OUTPUT_CHANNELS])
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{
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const ALfloat maxdist{
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std::accumulate(conf->Speakers.begin(), conf->Speakers.end(), float{0.0f},
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std::bind(maxf, _1, std::bind(std::mem_fn(&AmbDecConf::SpeakerConf::Distance), _2))
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)
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};
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const char *devname{device->DeviceName.c_str()};
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if(!GetConfigValueBool(devname, "decoder", "distance-comp", 1) || !(maxdist > 0.0f))
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return;
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auto srate = static_cast<ALfloat>(device->Frequency);
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size_t total{0u};
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for(size_t i{0u};i < conf->Speakers.size();i++)
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{
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const AmbDecConf::SpeakerConf &speaker = conf->Speakers[i];
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const ALsizei chan{speakermap[i]};
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/* Distance compensation only delays in steps of the sample rate. This
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* is a bit less accurate since the delay time falls to the nearest
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* sample time, but it's far simpler as it doesn't have to deal with
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* phase offsets. This means at 48khz, for instance, the distance delay
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* will be in steps of about 7 millimeters.
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*/
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const ALfloat delay{
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std::floor((maxdist - speaker.Distance)/SPEEDOFSOUNDMETRESPERSEC*srate + 0.5f)
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};
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if(delay >= static_cast<ALfloat>(MAX_DELAY_LENGTH))
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ERR("Delay for speaker \"%s\" exceeds buffer length (%f >= %d)\n",
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speaker.Name.c_str(), delay, MAX_DELAY_LENGTH);
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device->ChannelDelay[chan].Length = static_cast<ALsizei>(clampf(
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delay, 0.0f, static_cast<ALfloat>(MAX_DELAY_LENGTH-1)
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));
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device->ChannelDelay[chan].Gain = speaker.Distance / maxdist;
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TRACE("Channel %u \"%s\" distance compensation: %d samples, %f gain\n", chan,
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speaker.Name.c_str(), device->ChannelDelay[chan].Length,
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device->ChannelDelay[chan].Gain
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);
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/* Round up to the next 4th sample, so each channel buffer starts
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* 16-byte aligned.
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*/
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total += RoundUp(device->ChannelDelay[chan].Length, 4);
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}
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if(total > 0)
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{
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device->ChannelDelay.resize(total);
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device->ChannelDelay[0].Buffer = device->ChannelDelay.data();
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auto set_bufptr = [](const DistanceComp::DistData &last, const DistanceComp::DistData &cur) -> DistanceComp::DistData
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{
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DistanceComp::DistData ret{cur};
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ret.Buffer = last.Buffer + RoundUp(last.Length, 4);
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return ret;
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};
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std::partial_sum(device->ChannelDelay.begin(), device->ChannelDelay.end(),
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device->ChannelDelay.begin(), set_bufptr);
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}
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}
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auto GetAmbiScales(AmbiNorm scaletype) noexcept -> const std::array<float,MAX_AMBI_CHANNELS>&
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{
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if(scaletype == AmbiNorm::FuMa) return AmbiScale::FromFuMa;
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if(scaletype == AmbiNorm::SN3D) return AmbiScale::FromSN3D;
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return AmbiScale::FromN3D;
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}
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auto GetAmbiLayout(AmbiLayout layouttype) noexcept -> const std::array<int,MAX_AMBI_CHANNELS>&
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{
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if(layouttype == AmbiLayout::FuMa) return AmbiIndex::FromFuMa;
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return AmbiIndex::FromACN;
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}
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void InitPanning(ALCdevice *device)
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{
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al::span<const ChannelMap> chanmap;
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ALsizei coeffcount{};
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switch(device->FmtChans)
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{
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case DevFmtMono:
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chanmap = MonoCfg;
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coeffcount = 1;
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break;
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case DevFmtStereo:
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chanmap = StereoCfg;
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coeffcount = 3;
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break;
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case DevFmtQuad:
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chanmap = QuadCfg;
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coeffcount = 3;
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break;
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case DevFmtX51:
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chanmap = X51SideCfg;
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coeffcount = 5;
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break;
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case DevFmtX51Rear:
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chanmap = X51RearCfg;
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coeffcount = 5;
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break;
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case DevFmtX61:
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chanmap = X61Cfg;
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coeffcount = 5;
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break;
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case DevFmtX71:
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chanmap = X71Cfg;
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coeffcount = 7;
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break;
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case DevFmtAmbi3D:
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break;
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}
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if(device->FmtChans == DevFmtAmbi3D)
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{
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const char *devname{device->DeviceName.c_str()};
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const std::array<int,MAX_AMBI_CHANNELS> &acnmap = GetAmbiLayout(device->mAmbiLayout);
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const std::array<float,MAX_AMBI_CHANNELS> &n3dscale = GetAmbiScales(device->mAmbiScale);
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/* For DevFmtAmbi3D, the ambisonic order is already set. */
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const size_t count{AmbiChannelsFromOrder(device->mAmbiOrder)};
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std::transform(acnmap.begin(), acnmap.begin()+count, std::begin(device->Dry.AmbiMap),
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[&n3dscale](const ALsizei &acn) noexcept -> BFChannelConfig
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{ return BFChannelConfig{1.0f/n3dscale[acn], acn}; }
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);
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device->Dry.NumChannels = static_cast<ALsizei>(count);
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ALfloat nfc_delay{0.0f};
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if(ConfigValueFloat(devname, "decoder", "nfc-ref-delay", &nfc_delay) && nfc_delay > 0.0f)
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{
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static constexpr ALsizei chans_per_order[MAX_AMBI_ORDER+1]{ 1, 3, 5, 7 };
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nfc_delay = clampf(nfc_delay, 0.001f, 1000.0f);
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InitNearFieldCtrl(device, nfc_delay * SPEEDOFSOUNDMETRESPERSEC,
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device->mAmbiOrder, chans_per_order);
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}
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device->RealOut.NumChannels = 0;
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}
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else
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{
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ChannelDec chancoeffs[MAX_OUTPUT_CHANNELS]{};
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ALsizei idxmap[MAX_OUTPUT_CHANNELS]{};
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for(size_t i{0u};i < chanmap.size();++i)
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{
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const ALint idx{GetChannelIdxByName(device->RealOut, chanmap[i].ChanName)};
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if(idx < 0)
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{
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ERR("Failed to find %s channel in device\n",
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GetLabelFromChannel(chanmap[i].ChanName));
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continue;
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|
}
|
|
idxmap[i] = idx;
|
|
std::copy_n(chanmap[i].Config, coeffcount, chancoeffs[i]);
|
|
}
|
|
|
|
/* For non-DevFmtAmbi3D, set the ambisonic order given the mixing
|
|
* channel count. Built-in speaker decoders are always 2D, so just
|
|
* reverse that calculation.
|
|
*/
|
|
device->mAmbiOrder = (coeffcount-1) / 2;
|
|
|
|
std::transform(AmbiIndex::From2D.begin(), AmbiIndex::From2D.begin()+coeffcount,
|
|
std::begin(device->Dry.AmbiMap),
|
|
[](const ALsizei &index) noexcept { return BFChannelConfig{1.0f, index}; }
|
|
);
|
|
device->Dry.NumChannels = coeffcount;
|
|
|
|
TRACE("Enabling %s-order%s ambisonic decoder\n",
|
|
(coeffcount > 5) ? "third" :
|
|
(coeffcount > 3) ? "second" : "first",
|
|
""
|
|
);
|
|
device->AmbiDecoder = al::make_unique<BFormatDec>(coeffcount,
|
|
static_cast<ALsizei>(chanmap.size()), chancoeffs, idxmap);
|
|
|
|
device->RealOut.NumChannels = device->channelsFromFmt();
|
|
}
|
|
}
|
|
|
|
void InitCustomPanning(ALCdevice *device, bool hqdec, const AmbDecConf *conf, const ALsizei (&speakermap)[MAX_OUTPUT_CHANNELS])
|
|
{
|
|
static constexpr ALsizei chans_per_order2d[MAX_AMBI_ORDER+1] = { 1, 2, 2, 2 };
|
|
static constexpr ALsizei chans_per_order3d[MAX_AMBI_ORDER+1] = { 1, 3, 5, 7 };
|
|
|
|
if(!hqdec && conf->FreqBands != 1)
|
|
ERR("Basic renderer uses the high-frequency matrix as single-band (xover_freq = %.0fhz)\n",
|
|
conf->XOverFreq);
|
|
|
|
ALsizei order{(conf->ChanMask > AMBI_2ORDER_MASK) ? 3 :
|
|
(conf->ChanMask > AMBI_1ORDER_MASK) ? 2 : 1};
|
|
device->mAmbiOrder = order;
|
|
|
|
ALsizei count;
|
|
if((conf->ChanMask&AMBI_PERIPHONIC_MASK))
|
|
{
|
|
count = static_cast<ALsizei>(AmbiChannelsFromOrder(order));
|
|
std::transform(AmbiIndex::From3D.begin(), AmbiIndex::From3D.begin()+count,
|
|
std::begin(device->Dry.AmbiMap),
|
|
[](const ALsizei &index) noexcept { return BFChannelConfig{1.0f, index}; }
|
|
);
|
|
}
|
|
else
|
|
{
|
|
count = static_cast<ALsizei>(Ambi2DChannelsFromOrder(order));
|
|
std::transform(AmbiIndex::From2D.begin(), AmbiIndex::From2D.begin()+count,
|
|
std::begin(device->Dry.AmbiMap),
|
|
[](const ALsizei &index) noexcept { return BFChannelConfig{1.0f, index}; }
|
|
);
|
|
}
|
|
device->Dry.NumChannels = count;
|
|
|
|
TRACE("Enabling %s-band %s-order%s ambisonic decoder\n",
|
|
(!hqdec || conf->FreqBands == 1) ? "single" : "dual",
|
|
(conf->ChanMask > AMBI_2ORDER_MASK) ? "third" :
|
|
(conf->ChanMask > AMBI_1ORDER_MASK) ? "second" : "first",
|
|
(conf->ChanMask&AMBI_PERIPHONIC_MASK) ? " periphonic" : ""
|
|
);
|
|
device->AmbiDecoder = al::make_unique<BFormatDec>(conf, hqdec, count, device->Frequency,
|
|
speakermap);
|
|
|
|
device->RealOut.NumChannels = device->channelsFromFmt();
|
|
|
|
auto accum_spkr_dist = std::bind(std::plus<float>{}, _1,
|
|
std::bind(std::mem_fn(&AmbDecConf::SpeakerConf::Distance), _2));
|
|
const ALfloat avg_dist{
|
|
std::accumulate(conf->Speakers.begin(), conf->Speakers.end(), float{0.0f},
|
|
accum_spkr_dist) / static_cast<ALfloat>(conf->Speakers.size())
|
|
};
|
|
InitNearFieldCtrl(device, avg_dist, order,
|
|
(conf->ChanMask&AMBI_PERIPHONIC_MASK) ? chans_per_order3d : chans_per_order2d);
|
|
|
|
InitDistanceComp(device, conf, speakermap);
|
|
}
|
|
|
|
void InitHrtfPanning(ALCdevice *device)
|
|
{
|
|
/* NOTE: In degrees, and azimuth goes clockwise. */
|
|
static constexpr AngularPoint AmbiPoints[]{
|
|
{ 35.264390f, -45.000000f },
|
|
{ 35.264390f, 45.000000f },
|
|
{ 35.264390f, 135.000000f },
|
|
{ 35.264390f, -135.000000f },
|
|
{ -35.264390f, -45.000000f },
|
|
{ -35.264390f, 45.000000f },
|
|
{ -35.264390f, 135.000000f },
|
|
{ -35.264390f, -135.000000f },
|
|
{ 0.000000f, -20.905157f },
|
|
{ 0.000000f, 20.905157f },
|
|
{ 0.000000f, 159.094843f },
|
|
{ 0.000000f, -159.094843f },
|
|
{ 20.905157f, -90.000000f },
|
|
{ -20.905157f, -90.000000f },
|
|
{ -20.905157f, 90.000000f },
|
|
{ 20.905157f, 90.000000f },
|
|
{ 69.094843f, 0.000000f },
|
|
{ -69.094843f, 0.000000f },
|
|
{ -69.094843f, 180.000000f },
|
|
{ 69.094843f, 180.000000f },
|
|
};
|
|
static constexpr ALfloat AmbiMatrix[][MAX_AMBI_CHANNELS]{
|
|
{ 5.00000000e-02f, 5.00000000e-02f, 5.00000000e-02f, 5.00000000e-02f, 6.45497224e-02f, 6.45497224e-02f, 0.00000000e+00f, 6.45497224e-02f, 0.00000000e+00f, 1.48264644e-02f, 6.33865691e-02f, 1.01126676e-01f, -7.36485380e-02f, -1.09260065e-02f, 7.08683387e-02f, -1.01622099e-01f },
|
|
{ 5.00000000e-02f, -5.00000000e-02f, 5.00000000e-02f, 5.00000000e-02f, -6.45497224e-02f, -6.45497224e-02f, 0.00000000e+00f, 6.45497224e-02f, 0.00000000e+00f, -1.48264644e-02f, -6.33865691e-02f, -1.01126676e-01f, -7.36485380e-02f, -1.09260065e-02f, 7.08683387e-02f, -1.01622099e-01f },
|
|
{ 5.00000000e-02f, -5.00000000e-02f, 5.00000000e-02f, -5.00000000e-02f, 6.45497224e-02f, -6.45497224e-02f, 0.00000000e+00f, -6.45497224e-02f, 0.00000000e+00f, -1.48264644e-02f, 6.33865691e-02f, -1.01126676e-01f, -7.36485380e-02f, 1.09260065e-02f, 7.08683387e-02f, 1.01622099e-01f },
|
|
{ 5.00000000e-02f, 5.00000000e-02f, 5.00000000e-02f, -5.00000000e-02f, -6.45497224e-02f, 6.45497224e-02f, 0.00000000e+00f, -6.45497224e-02f, 0.00000000e+00f, 1.48264644e-02f, -6.33865691e-02f, 1.01126676e-01f, -7.36485380e-02f, 1.09260065e-02f, 7.08683387e-02f, 1.01622099e-01f },
|
|
{ 5.00000000e-02f, 5.00000000e-02f, -5.00000000e-02f, 5.00000000e-02f, 6.45497224e-02f, -6.45497224e-02f, 0.00000000e+00f, -6.45497224e-02f, 0.00000000e+00f, 1.48264644e-02f, -6.33865691e-02f, 1.01126676e-01f, 7.36485380e-02f, -1.09260065e-02f, -7.08683387e-02f, -1.01622099e-01f },
|
|
{ 5.00000000e-02f, -5.00000000e-02f, -5.00000000e-02f, 5.00000000e-02f, -6.45497224e-02f, 6.45497224e-02f, 0.00000000e+00f, -6.45497224e-02f, 0.00000000e+00f, -1.48264644e-02f, 6.33865691e-02f, -1.01126676e-01f, 7.36485380e-02f, -1.09260065e-02f, -7.08683387e-02f, -1.01622099e-01f },
|
|
{ 5.00000000e-02f, -5.00000000e-02f, -5.00000000e-02f, -5.00000000e-02f, 6.45497224e-02f, 6.45497224e-02f, 0.00000000e+00f, 6.45497224e-02f, 0.00000000e+00f, -1.48264644e-02f, -6.33865691e-02f, -1.01126676e-01f, 7.36485380e-02f, 1.09260065e-02f, -7.08683387e-02f, 1.01622099e-01f },
|
|
{ 5.00000000e-02f, 5.00000000e-02f, -5.00000000e-02f, -5.00000000e-02f, -6.45497224e-02f, -6.45497224e-02f, 0.00000000e+00f, 6.45497224e-02f, 0.00000000e+00f, 1.48264644e-02f, 6.33865691e-02f, 1.01126676e-01f, 7.36485380e-02f, 1.09260065e-02f, -7.08683387e-02f, 1.01622099e-01f },
|
|
{ 5.00000000e-02f, 3.09016994e-02f, 0.00000000e+00f, 8.09016994e-02f, 6.45497224e-02f, 0.00000000e+00f, -5.59016994e-02f, 0.00000000e+00f, 7.21687836e-02f, 7.76323754e-02f, 0.00000000e+00f, -1.49775925e-01f, 0.00000000e+00f, -2.95083663e-02f, 0.00000000e+00f, 7.76323754e-02f },
|
|
{ 5.00000000e-02f, -3.09016994e-02f, 0.00000000e+00f, 8.09016994e-02f, -6.45497224e-02f, 0.00000000e+00f, -5.59016994e-02f, 0.00000000e+00f, 7.21687836e-02f, -7.76323754e-02f, 0.00000000e+00f, 1.49775925e-01f, 0.00000000e+00f, -2.95083663e-02f, 0.00000000e+00f, 7.76323754e-02f },
|
|
{ 5.00000000e-02f, -3.09016994e-02f, 0.00000000e+00f, -8.09016994e-02f, 6.45497224e-02f, 0.00000000e+00f, -5.59016994e-02f, 0.00000000e+00f, 7.21687836e-02f, -7.76323754e-02f, 0.00000000e+00f, 1.49775925e-01f, 0.00000000e+00f, 2.95083663e-02f, 0.00000000e+00f, -7.76323754e-02f },
|
|
{ 5.00000000e-02f, 3.09016994e-02f, 0.00000000e+00f, -8.09016994e-02f, -6.45497224e-02f, 0.00000000e+00f, -5.59016994e-02f, 0.00000000e+00f, 7.21687836e-02f, 7.76323754e-02f, 0.00000000e+00f, -1.49775925e-01f, 0.00000000e+00f, 2.95083663e-02f, 0.00000000e+00f, -7.76323754e-02f },
|
|
{ 5.00000000e-02f, 8.09016994e-02f, 3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, 6.45497224e-02f, -3.45491503e-02f, 0.00000000e+00f, -8.44966837e-02f, -4.79794466e-02f, 0.00000000e+00f, -6.77901327e-02f, 3.03448665e-02f, 0.00000000e+00f, -1.65948192e-01f, 0.00000000e+00f },
|
|
{ 5.00000000e-02f, 8.09016994e-02f, -3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, -6.45497224e-02f, -3.45491503e-02f, 0.00000000e+00f, -8.44966837e-02f, -4.79794466e-02f, 0.00000000e+00f, -6.77901327e-02f, -3.03448665e-02f, 0.00000000e+00f, 1.65948192e-01f, 0.00000000e+00f },
|
|
{ 5.00000000e-02f, -8.09016994e-02f, -3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, 6.45497224e-02f, -3.45491503e-02f, 0.00000000e+00f, -8.44966837e-02f, 4.79794466e-02f, 0.00000000e+00f, 6.77901327e-02f, -3.03448665e-02f, 0.00000000e+00f, 1.65948192e-01f, 0.00000000e+00f },
|
|
{ 5.00000000e-02f, -8.09016994e-02f, 3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, -6.45497224e-02f, -3.45491503e-02f, 0.00000000e+00f, -8.44966837e-02f, 4.79794466e-02f, 0.00000000e+00f, 6.77901327e-02f, 3.03448665e-02f, 0.00000000e+00f, -1.65948192e-01f, 0.00000000e+00f },
|
|
{ 5.00000000e-02f, 0.00000000e+00f, 8.09016994e-02f, 3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, 9.04508497e-02f, 6.45497224e-02f, 1.23279000e-02f, 0.00000000e+00f, 0.00000000e+00f, 0.00000000e+00f, 7.94438918e-02f, 1.12611206e-01f, -2.42115150e-02f, 1.25611822e-01f },
|
|
{ 5.00000000e-02f, 0.00000000e+00f, -8.09016994e-02f, 3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, 9.04508497e-02f, -6.45497224e-02f, 1.23279000e-02f, 0.00000000e+00f, 0.00000000e+00f, 0.00000000e+00f, -7.94438918e-02f, 1.12611206e-01f, 2.42115150e-02f, 1.25611822e-01f },
|
|
{ 5.00000000e-02f, 0.00000000e+00f, -8.09016994e-02f, -3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, 9.04508497e-02f, 6.45497224e-02f, 1.23279000e-02f, 0.00000000e+00f, 0.00000000e+00f, 0.00000000e+00f, -7.94438918e-02f, -1.12611206e-01f, 2.42115150e-02f, -1.25611822e-01f },
|
|
{ 5.00000000e-02f, 0.00000000e+00f, 8.09016994e-02f, -3.09016994e-02f, 0.00000000e+00f, 0.00000000e+00f, 9.04508497e-02f, -6.45497224e-02f, 1.23279000e-02f, 0.00000000e+00f, 0.00000000e+00f, 0.00000000e+00f, 7.94438918e-02f, -1.12611206e-01f, -2.42115150e-02f, -1.25611822e-01f }
|
|
};
|
|
static constexpr ALfloat AmbiOrderHFGainFOA[MAX_AMBI_ORDER+1]{
|
|
3.16227766e+00f, 1.82574186e+00f
|
|
}, AmbiOrderHFGainHOA[MAX_AMBI_ORDER+1]{
|
|
2.35702260e+00f, 1.82574186e+00f, 9.42809042e-01f
|
|
/*1.86508671e+00f, 1.60609389e+00f, 1.14205530e+00f, 5.68379553e-01f*/
|
|
};
|
|
static constexpr ALsizei ChansPerOrder[MAX_AMBI_ORDER+1]{ 1, 3, 5, 7 };
|
|
const ALfloat *AmbiOrderHFGain{AmbiOrderHFGainFOA};
|
|
|
|
static_assert(al::size(AmbiPoints) == al::size(AmbiMatrix), "Ambisonic HRTF mismatch");
|
|
|
|
/* Don't bother with HOA when using full HRTF rendering. Nothing needs it,
|
|
* and it eases the CPU/memory load.
|
|
*/
|
|
ALsizei ambi_order{1};
|
|
if(device->mRenderMode != HrtfRender)
|
|
{
|
|
ambi_order = 2;
|
|
AmbiOrderHFGain = AmbiOrderHFGainHOA;
|
|
}
|
|
device->mAmbiOrder = ambi_order;
|
|
|
|
const size_t count{AmbiChannelsFromOrder(ambi_order)};
|
|
device->mHrtfState = DirectHrtfState::Create(count);
|
|
|
|
std::transform(AmbiIndex::From3D.begin(), AmbiIndex::From3D.begin()+count,
|
|
std::begin(device->Dry.AmbiMap),
|
|
[](const ALsizei &index) noexcept { return BFChannelConfig{1.0f, index}; }
|
|
);
|
|
device->Dry.NumChannels = static_cast<ALsizei>(count);
|
|
|
|
device->RealOut.NumChannels = device->channelsFromFmt();
|
|
|
|
BuildBFormatHrtf(device->mHrtf, device->mHrtfState.get(), device->Dry.NumChannels, AmbiPoints,
|
|
AmbiMatrix, al::size(AmbiPoints), AmbiOrderHFGain);
|
|
|
|
HrtfEntry *Hrtf{device->mHrtf};
|
|
InitNearFieldCtrl(device, Hrtf->field[0].distance, ambi_order, ChansPerOrder);
|
|
}
|
|
|
|
void InitUhjPanning(ALCdevice *device)
|
|
{
|
|
/* UHJ is always 2D first-order. */
|
|
static constexpr size_t count{Ambi2DChannelsFromOrder(1)};
|
|
|
|
device->mAmbiOrder = 1;
|
|
|
|
auto acnmap_end = AmbiIndex::FromFuMa.begin() + count;
|
|
std::transform(AmbiIndex::FromFuMa.begin(), acnmap_end, std::begin(device->Dry.AmbiMap),
|
|
[](const ALsizei &acn) noexcept -> BFChannelConfig
|
|
{ return BFChannelConfig{1.0f/AmbiScale::FromFuMa[acn], acn}; }
|
|
);
|
|
device->Dry.NumChannels = count;
|
|
|
|
device->RealOut.NumChannels = device->channelsFromFmt();
|
|
}
|
|
|
|
} // namespace
|
|
|
|
|
|
void CalcAmbiCoeffs(const ALfloat y, const ALfloat z, const ALfloat x, const ALfloat spread,
|
|
ALfloat (&coeffs)[MAX_AMBI_CHANNELS])
|
|
{
|
|
/* Zeroth-order */
|
|
coeffs[0] = 1.0f; /* ACN 0 = 1 */
|
|
/* First-order */
|
|
coeffs[1] = 1.732050808f * y; /* ACN 1 = sqrt(3) * Y */
|
|
coeffs[2] = 1.732050808f * z; /* ACN 2 = sqrt(3) * Z */
|
|
coeffs[3] = 1.732050808f * x; /* ACN 3 = sqrt(3) * X */
|
|
/* Second-order */
|
|
coeffs[4] = 3.872983346f * x * y; /* ACN 4 = sqrt(15) * X * Y */
|
|
coeffs[5] = 3.872983346f * y * z; /* ACN 5 = sqrt(15) * Y * Z */
|
|
coeffs[6] = 1.118033989f * (z*z*3.0f - 1.0f); /* ACN 6 = sqrt(5)/2 * (3*Z*Z - 1) */
|
|
coeffs[7] = 3.872983346f * x * z; /* ACN 7 = sqrt(15) * X * Z */
|
|
coeffs[8] = 1.936491673f * (x*x - y*y); /* ACN 8 = sqrt(15)/2 * (X*X - Y*Y) */
|
|
/* Third-order */
|
|
coeffs[9] = 2.091650066f * y * (x*x*3.0f - y*y); /* ACN 9 = sqrt(35/8) * Y * (3*X*X - Y*Y) */
|
|
coeffs[10] = 10.246950766f * z * x * y; /* ACN 10 = sqrt(105) * Z * X * Y */
|
|
coeffs[11] = 1.620185175f * y * (z*z*5.0f - 1.0f); /* ACN 11 = sqrt(21/8) * Y * (5*Z*Z - 1) */
|
|
coeffs[12] = 1.322875656f * z * (z*z*5.0f - 3.0f); /* ACN 12 = sqrt(7)/2 * Z * (5*Z*Z - 3) */
|
|
coeffs[13] = 1.620185175f * x * (z*z*5.0f - 1.0f); /* ACN 13 = sqrt(21/8) * X * (5*Z*Z - 1) */
|
|
coeffs[14] = 5.123475383f * z * (x*x - y*y); /* ACN 14 = sqrt(105)/2 * Z * (X*X - Y*Y) */
|
|
coeffs[15] = 2.091650066f * x * (x*x - y*y*3.0f); /* ACN 15 = sqrt(35/8) * X * (X*X - 3*Y*Y) */
|
|
/* Fourth-order */
|
|
/* ACN 16 = sqrt(35)*3/2 * X * Y * (X*X - Y*Y) */
|
|
/* ACN 17 = sqrt(35/2)*3/2 * (3*X*X - Y*Y) * Y * Z */
|
|
/* ACN 18 = sqrt(5)*3/2 * X * Y * (7*Z*Z - 1) */
|
|
/* ACN 19 = sqrt(5/2)*3/2 * Y * Z * (7*Z*Z - 3) */
|
|
/* ACN 20 = 3/8 * (35*Z*Z*Z*Z - 30*Z*Z + 3) */
|
|
/* ACN 21 = sqrt(5/2)*3/2 * X * Z * (7*Z*Z - 3) */
|
|
/* ACN 22 = sqrt(5)*3/4 * (X*X - Y*Y) * (7*Z*Z - 1) */
|
|
/* ACN 23 = sqrt(35/2)*3/2 * (X*X - 3*Y*Y) * X * Z */
|
|
/* ACN 24 = sqrt(35)*3/8 * (X*X*X*X - 6*X*X*Y*Y + Y*Y*Y*Y) */
|
|
|
|
if(spread > 0.0f)
|
|
{
|
|
/* Implement the spread by using a spherical source that subtends the
|
|
* angle spread. See:
|
|
* http://www.ppsloan.org/publications/StupidSH36.pdf - Appendix A3
|
|
*
|
|
* When adjusted for N3D normalization instead of SN3D, these
|
|
* calculations are:
|
|
*
|
|
* ZH0 = -sqrt(pi) * (-1+ca);
|
|
* ZH1 = 0.5*sqrt(pi) * sa*sa;
|
|
* ZH2 = -0.5*sqrt(pi) * ca*(-1+ca)*(ca+1);
|
|
* ZH3 = -0.125*sqrt(pi) * (-1+ca)*(ca+1)*(5*ca*ca - 1);
|
|
* ZH4 = -0.125*sqrt(pi) * ca*(-1+ca)*(ca+1)*(7*ca*ca - 3);
|
|
* ZH5 = -0.0625*sqrt(pi) * (-1+ca)*(ca+1)*(21*ca*ca*ca*ca - 14*ca*ca + 1);
|
|
*
|
|
* The gain of the source is compensated for size, so that the
|
|
* loudness doesn't depend on the spread. Thus:
|
|
*
|
|
* ZH0 = 1.0f;
|
|
* ZH1 = 0.5f * (ca+1.0f);
|
|
* ZH2 = 0.5f * (ca+1.0f)*ca;
|
|
* ZH3 = 0.125f * (ca+1.0f)*(5.0f*ca*ca - 1.0f);
|
|
* ZH4 = 0.125f * (ca+1.0f)*(7.0f*ca*ca - 3.0f)*ca;
|
|
* ZH5 = 0.0625f * (ca+1.0f)*(21.0f*ca*ca*ca*ca - 14.0f*ca*ca + 1.0f);
|
|
*/
|
|
ALfloat ca = std::cos(spread * 0.5f);
|
|
/* Increase the source volume by up to +3dB for a full spread. */
|
|
ALfloat scale = std::sqrt(1.0f + spread/al::MathDefs<float>::Tau());
|
|
|
|
ALfloat ZH0_norm = scale;
|
|
ALfloat ZH1_norm = 0.5f * (ca+1.f) * scale;
|
|
ALfloat ZH2_norm = 0.5f * (ca+1.f)*ca * scale;
|
|
ALfloat ZH3_norm = 0.125f * (ca+1.f)*(5.f*ca*ca-1.f) * scale;
|
|
|
|
/* Zeroth-order */
|
|
coeffs[0] *= ZH0_norm;
|
|
/* First-order */
|
|
coeffs[1] *= ZH1_norm;
|
|
coeffs[2] *= ZH1_norm;
|
|
coeffs[3] *= ZH1_norm;
|
|
/* Second-order */
|
|
coeffs[4] *= ZH2_norm;
|
|
coeffs[5] *= ZH2_norm;
|
|
coeffs[6] *= ZH2_norm;
|
|
coeffs[7] *= ZH2_norm;
|
|
coeffs[8] *= ZH2_norm;
|
|
/* Third-order */
|
|
coeffs[9] *= ZH3_norm;
|
|
coeffs[10] *= ZH3_norm;
|
|
coeffs[11] *= ZH3_norm;
|
|
coeffs[12] *= ZH3_norm;
|
|
coeffs[13] *= ZH3_norm;
|
|
coeffs[14] *= ZH3_norm;
|
|
coeffs[15] *= ZH3_norm;
|
|
}
|
|
}
|
|
|
|
void ComputePanGains(const MixParams *mix, const ALfloat *RESTRICT coeffs, ALfloat ingain, ALfloat (&gains)[MAX_OUTPUT_CHANNELS])
|
|
{
|
|
auto ambimap = mix->AmbiMap.cbegin();
|
|
const ALsizei numchans{mix->NumChannels};
|
|
|
|
ASSUME(numchans > 0);
|
|
auto iter = std::transform(ambimap, ambimap+numchans, std::begin(gains),
|
|
[coeffs,ingain](const BFChannelConfig &chanmap) noexcept -> ALfloat
|
|
{
|
|
ASSUME(chanmap.Index >= 0);
|
|
return chanmap.Scale * coeffs[chanmap.Index] * ingain;
|
|
}
|
|
);
|
|
std::fill(iter, std::end(gains), 0.0f);
|
|
}
|
|
|
|
|
|
void aluInitRenderer(ALCdevice *device, ALint hrtf_id, HrtfRequestMode hrtf_appreq, HrtfRequestMode hrtf_userreq)
|
|
{
|
|
/* Hold the HRTF the device last used, in case it's used again. */
|
|
HrtfEntry *old_hrtf{device->mHrtf};
|
|
|
|
device->mHrtfState = nullptr;
|
|
device->mHrtf = nullptr;
|
|
device->HrtfName.clear();
|
|
device->mRenderMode = NormalRender;
|
|
|
|
device->Dry.AmbiMap.fill(BFChannelConfig{});
|
|
device->Dry.NumChannels = 0;
|
|
std::fill(std::begin(device->NumChannelsPerOrder), std::end(device->NumChannelsPerOrder), 0);
|
|
|
|
device->AvgSpeakerDist = 0.0f;
|
|
device->ChannelDelay.clear();
|
|
|
|
device->AmbiDecoder = nullptr;
|
|
device->Stablizer = nullptr;
|
|
|
|
if(device->FmtChans != DevFmtStereo)
|
|
{
|
|
if(old_hrtf)
|
|
old_hrtf->DecRef();
|
|
old_hrtf = nullptr;
|
|
if(hrtf_appreq == Hrtf_Enable)
|
|
device->HrtfStatus = ALC_HRTF_UNSUPPORTED_FORMAT_SOFT;
|
|
|
|
const char *layout{nullptr};
|
|
switch(device->FmtChans)
|
|
{
|
|
case DevFmtQuad: layout = "quad"; break;
|
|
case DevFmtX51: /* fall-through */
|
|
case DevFmtX51Rear: layout = "surround51"; break;
|
|
case DevFmtX61: layout = "surround61"; break;
|
|
case DevFmtX71: layout = "surround71"; break;
|
|
/* Mono, Stereo, and Ambisonics output don't use custom decoders. */
|
|
case DevFmtMono:
|
|
case DevFmtStereo:
|
|
case DevFmtAmbi3D:
|
|
break;
|
|
}
|
|
|
|
const char *devname{device->DeviceName.c_str()};
|
|
ALsizei speakermap[MAX_OUTPUT_CHANNELS];
|
|
AmbDecConf *pconf{nullptr};
|
|
AmbDecConf conf{};
|
|
if(layout)
|
|
{
|
|
const char *fname;
|
|
if(ConfigValueStr(devname, "decoder", layout, &fname))
|
|
{
|
|
if(!conf.load(fname))
|
|
ERR("Failed to load layout file %s\n", fname);
|
|
else if(conf.Speakers.size() > MAX_OUTPUT_CHANNELS)
|
|
ERR("Unsupported speaker count %zu (max %d)\n", conf.Speakers.size(),
|
|
MAX_OUTPUT_CHANNELS);
|
|
else if(conf.ChanMask > AMBI_3ORDER_MASK)
|
|
ERR("Unsupported channel mask 0x%04x (max 0x%x)\n", conf.ChanMask,
|
|
AMBI_3ORDER_MASK);
|
|
else if(MakeSpeakerMap(device, &conf, speakermap))
|
|
pconf = &conf;
|
|
}
|
|
}
|
|
|
|
if(!pconf)
|
|
InitPanning(device);
|
|
else
|
|
{
|
|
int hqdec{GetConfigValueBool(devname, "decoder", "hq-mode", 0)};
|
|
InitCustomPanning(device, !!hqdec, pconf, speakermap);
|
|
}
|
|
|
|
/* Enable the stablizer only for formats that have front-left, front-
|
|
* right, and front-center outputs.
|
|
*/
|
|
switch(device->FmtChans)
|
|
{
|
|
case DevFmtX51:
|
|
case DevFmtX51Rear:
|
|
case DevFmtX61:
|
|
case DevFmtX71:
|
|
if(GetConfigValueBool(devname, nullptr, "front-stablizer", 0))
|
|
{
|
|
auto stablizer = al::make_unique<FrontStablizer>();
|
|
/* Initialize band-splitting filters for the front-left and
|
|
* front-right channels, with a crossover at 5khz (could be
|
|
* higher).
|
|
*/
|
|
const ALfloat scale{static_cast<ALfloat>(5000.0 / device->Frequency)};
|
|
|
|
stablizer->LFilter.init(scale);
|
|
stablizer->RFilter = stablizer->LFilter;
|
|
|
|
/* Initialize an all-pass filter for the phase corrector. */
|
|
stablizer->APFilter.init(scale);
|
|
|
|
device->Stablizer = std::move(stablizer);
|
|
/* NOTE: Don't know why this has to be "copied" into a local
|
|
* static constexpr variable to avoid a reference on
|
|
* FrontStablizer::DelayLength...
|
|
*/
|
|
static constexpr size_t StablizerDelay{FrontStablizer::DelayLength};
|
|
device->FixedLatency += nanoseconds{seconds{StablizerDelay}} / device->Frequency;
|
|
}
|
|
break;
|
|
case DevFmtMono:
|
|
case DevFmtStereo:
|
|
case DevFmtQuad:
|
|
case DevFmtAmbi3D:
|
|
break;
|
|
}
|
|
TRACE("Front stablizer %s\n", device->Stablizer ? "enabled" : "disabled");
|
|
|
|
return;
|
|
}
|
|
|
|
device->AmbiDecoder = nullptr;
|
|
|
|
bool headphones{device->IsHeadphones != AL_FALSE};
|
|
if(device->Type != Loopback)
|
|
{
|
|
const char *mode;
|
|
if(ConfigValueStr(device->DeviceName.c_str(), nullptr, "stereo-mode", &mode))
|
|
{
|
|
if(strcasecmp(mode, "headphones") == 0)
|
|
headphones = true;
|
|
else if(strcasecmp(mode, "speakers") == 0)
|
|
headphones = false;
|
|
else if(strcasecmp(mode, "auto") != 0)
|
|
ERR("Unexpected stereo-mode: %s\n", mode);
|
|
}
|
|
}
|
|
|
|
if(hrtf_userreq == Hrtf_Default)
|
|
{
|
|
bool usehrtf = (headphones && hrtf_appreq != Hrtf_Disable) ||
|
|
(hrtf_appreq == Hrtf_Enable);
|
|
if(!usehrtf) goto no_hrtf;
|
|
|
|
device->HrtfStatus = ALC_HRTF_ENABLED_SOFT;
|
|
if(headphones && hrtf_appreq != Hrtf_Disable)
|
|
device->HrtfStatus = ALC_HRTF_HEADPHONES_DETECTED_SOFT;
|
|
}
|
|
else
|
|
{
|
|
if(hrtf_userreq != Hrtf_Enable)
|
|
{
|
|
if(hrtf_appreq == Hrtf_Enable)
|
|
device->HrtfStatus = ALC_HRTF_DENIED_SOFT;
|
|
goto no_hrtf;
|
|
}
|
|
device->HrtfStatus = ALC_HRTF_REQUIRED_SOFT;
|
|
}
|
|
|
|
if(device->HrtfList.empty())
|
|
device->HrtfList = EnumerateHrtf(device->DeviceName.c_str());
|
|
|
|
if(hrtf_id >= 0 && static_cast<size_t>(hrtf_id) < device->HrtfList.size())
|
|
{
|
|
const EnumeratedHrtf &entry = device->HrtfList[hrtf_id];
|
|
HrtfEntry *hrtf{GetLoadedHrtf(entry.hrtf)};
|
|
if(hrtf && hrtf->sampleRate == device->Frequency)
|
|
{
|
|
device->mHrtf = hrtf;
|
|
device->HrtfName = entry.name;
|
|
}
|
|
else if(hrtf)
|
|
hrtf->DecRef();
|
|
}
|
|
|
|
if(!device->mHrtf)
|
|
{
|
|
auto find_hrtf = [device](const EnumeratedHrtf &entry) -> bool
|
|
{
|
|
HrtfEntry *hrtf{GetLoadedHrtf(entry.hrtf)};
|
|
if(!hrtf) return false;
|
|
if(hrtf->sampleRate != device->Frequency)
|
|
{
|
|
hrtf->DecRef();
|
|
return false;
|
|
}
|
|
device->mHrtf = hrtf;
|
|
device->HrtfName = entry.name;
|
|
return true;
|
|
};
|
|
std::find_if(device->HrtfList.cbegin(), device->HrtfList.cend(), find_hrtf);
|
|
}
|
|
|
|
if(device->mHrtf)
|
|
{
|
|
if(old_hrtf)
|
|
old_hrtf->DecRef();
|
|
old_hrtf = nullptr;
|
|
|
|
device->mRenderMode = HrtfRender;
|
|
const char *mode;
|
|
if(ConfigValueStr(device->DeviceName.c_str(), nullptr, "hrtf-mode", &mode))
|
|
{
|
|
if(strcasecmp(mode, "full") == 0)
|
|
device->mRenderMode = HrtfRender;
|
|
else if(strcasecmp(mode, "basic") == 0)
|
|
device->mRenderMode = NormalRender;
|
|
else
|
|
ERR("Unexpected hrtf-mode: %s\n", mode);
|
|
}
|
|
|
|
TRACE("%s HRTF rendering enabled, using \"%s\"\n",
|
|
((device->mRenderMode == HrtfRender) ? "Full" : "Basic"), device->HrtfName.c_str()
|
|
);
|
|
InitHrtfPanning(device);
|
|
return;
|
|
}
|
|
device->HrtfStatus = ALC_HRTF_UNSUPPORTED_FORMAT_SOFT;
|
|
|
|
no_hrtf:
|
|
if(old_hrtf)
|
|
old_hrtf->DecRef();
|
|
old_hrtf = nullptr;
|
|
|
|
device->mRenderMode = StereoPair;
|
|
|
|
int bs2blevel{((headphones && hrtf_appreq != Hrtf_Disable) ||
|
|
(hrtf_appreq == Hrtf_Enable)) ? 5 : 0};
|
|
if(device->Type != Loopback)
|
|
ConfigValueInt(device->DeviceName.c_str(), nullptr, "cf_level", &bs2blevel);
|
|
if(bs2blevel > 0 && bs2blevel <= 6)
|
|
{
|
|
device->Bs2b = al::make_unique<bs2b>();
|
|
bs2b_set_params(device->Bs2b.get(), bs2blevel, device->Frequency);
|
|
TRACE("BS2B enabled\n");
|
|
InitPanning(device);
|
|
return;
|
|
}
|
|
|
|
const char *mode;
|
|
if(ConfigValueStr(device->DeviceName.c_str(), nullptr, "stereo-encoding", &mode))
|
|
{
|
|
if(strcasecmp(mode, "uhj") == 0)
|
|
device->mRenderMode = NormalRender;
|
|
else if(strcasecmp(mode, "panpot") != 0)
|
|
ERR("Unexpected stereo-encoding: %s\n", mode);
|
|
}
|
|
if(device->mRenderMode == NormalRender)
|
|
{
|
|
device->Uhj_Encoder = al::make_unique<Uhj2Encoder>();
|
|
TRACE("UHJ enabled\n");
|
|
InitUhjPanning(device);
|
|
return;
|
|
}
|
|
|
|
TRACE("Stereo rendering\n");
|
|
InitPanning(device);
|
|
}
|
|
|
|
|
|
void aluInitEffectPanning(ALeffectslot *slot, ALCdevice *device)
|
|
{
|
|
const size_t count{AmbiChannelsFromOrder(device->mAmbiOrder)};
|
|
slot->MixBuffer.resize(count);
|
|
slot->MixBuffer.shrink_to_fit();
|
|
|
|
auto acnmap_end = AmbiIndex::From3D.begin() + count;
|
|
auto iter = std::transform(AmbiIndex::From3D.begin(), acnmap_end, slot->Wet.AmbiMap.begin(),
|
|
[](const ALsizei &acn) noexcept -> BFChannelConfig
|
|
{ return BFChannelConfig{1.0f, acn}; }
|
|
);
|
|
std::fill(iter, slot->Wet.AmbiMap.end(), BFChannelConfig{});
|
|
slot->Wet.Buffer = &reinterpret_cast<ALfloat(&)[BUFFERSIZE]>(slot->MixBuffer[0]);
|
|
slot->Wet.NumChannels = static_cast<ALsizei>(count);
|
|
}
|