850 lines
22 KiB
C++
850 lines
22 KiB
C++
/**
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* OpenAL cross platform audio library
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* Copyright (C) 1999-2000 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 "version.h"
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#include <stdlib.h>
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#include <cmath>
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#include "alMain.h"
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#include "alcontext.h"
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#include "alu.h"
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#include "alError.h"
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#include "alexcpt.h"
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#include "backends/base.h"
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namespace {
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constexpr ALchar alVendor[] = "OpenAL Community";
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constexpr ALchar alVersion[] = "1.1 ALSOFT " ALSOFT_VERSION;
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constexpr ALchar alRenderer[] = "OpenAL Soft";
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// Error Messages
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constexpr ALchar alNoError[] = "No Error";
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constexpr ALchar alErrInvalidName[] = "Invalid Name";
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constexpr ALchar alErrInvalidEnum[] = "Invalid Enum";
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constexpr ALchar alErrInvalidValue[] = "Invalid Value";
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constexpr ALchar alErrInvalidOp[] = "Invalid Operation";
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constexpr ALchar alErrOutOfMemory[] = "Out of Memory";
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/* Resampler strings */
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constexpr ALchar alPointResampler[] = "Nearest";
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constexpr ALchar alLinearResampler[] = "Linear";
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constexpr ALchar alCubicResampler[] = "Cubic";
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constexpr ALchar alBSinc12Resampler[] = "11th order Sinc";
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constexpr ALchar alBSinc24Resampler[] = "23rd order Sinc";
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} // namespace
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/* WARNING: Non-standard export! Not part of any extension, or exposed in the
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* alcFunctions list.
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*/
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extern "C" AL_API const ALchar* AL_APIENTRY alsoft_get_version(void)
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START_API_FUNC
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{
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const char *spoof{getenv("ALSOFT_SPOOF_VERSION")};
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if(spoof && spoof[0] != '\0') return spoof;
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return ALSOFT_VERSION;
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}
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END_API_FUNC
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#define DO_UPDATEPROPS() do { \
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if(!context->DeferUpdates.load(std::memory_order_acquire)) \
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UpdateContextProps(context.get()); \
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else \
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context->PropsClean.clear(std::memory_order_release); \
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} while(0)
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AL_API ALvoid AL_APIENTRY alEnable(ALenum capability)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return;
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std::lock_guard<std::mutex> _{context->PropLock};
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switch(capability)
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{
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case AL_SOURCE_DISTANCE_MODEL:
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context->SourceDistanceModel = AL_TRUE;
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DO_UPDATEPROPS();
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid enable property 0x%04x", capability);
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}
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}
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END_API_FUNC
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AL_API ALvoid AL_APIENTRY alDisable(ALenum capability)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return;
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std::lock_guard<std::mutex> _{context->PropLock};
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switch(capability)
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{
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case AL_SOURCE_DISTANCE_MODEL:
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context->SourceDistanceModel = AL_FALSE;
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DO_UPDATEPROPS();
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid disable property 0x%04x", capability);
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}
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}
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END_API_FUNC
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AL_API ALboolean AL_APIENTRY alIsEnabled(ALenum capability)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return AL_FALSE;
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std::lock_guard<std::mutex> _{context->PropLock};
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ALboolean value{AL_FALSE};
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switch(capability)
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{
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case AL_SOURCE_DISTANCE_MODEL:
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value = context->SourceDistanceModel;
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid is enabled property 0x%04x", capability);
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}
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return value;
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}
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END_API_FUNC
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AL_API ALboolean AL_APIENTRY alGetBoolean(ALenum pname)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return AL_FALSE;
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std::lock_guard<std::mutex> _{context->PropLock};
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ALboolean value{AL_FALSE};
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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if(context->DopplerFactor != 0.0f)
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value = AL_TRUE;
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break;
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case AL_DOPPLER_VELOCITY:
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if(context->DopplerVelocity != 0.0f)
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value = AL_TRUE;
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break;
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case AL_DISTANCE_MODEL:
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if(context->mDistanceModel == DistanceModel::Default)
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value = AL_TRUE;
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break;
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case AL_SPEED_OF_SOUND:
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if(context->SpeedOfSound != 0.0f)
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value = AL_TRUE;
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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if(context->DeferUpdates.load(std::memory_order_acquire))
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value = AL_TRUE;
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break;
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case AL_GAIN_LIMIT_SOFT:
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if(GAIN_MIX_MAX/context->GainBoost != 0.0f)
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value = AL_TRUE;
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break;
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case AL_NUM_RESAMPLERS_SOFT:
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/* Always non-0. */
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value = AL_TRUE;
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break;
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case AL_DEFAULT_RESAMPLER_SOFT:
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value = ResamplerDefault ? AL_TRUE : AL_FALSE;
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid boolean property 0x%04x", pname);
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}
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return value;
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}
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END_API_FUNC
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AL_API ALdouble AL_APIENTRY alGetDouble(ALenum pname)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return 0.0;
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std::lock_guard<std::mutex> _{context->PropLock};
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ALdouble value{0.0};
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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value = static_cast<ALdouble>(context->DopplerFactor);
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break;
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case AL_DOPPLER_VELOCITY:
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value = static_cast<ALdouble>(context->DopplerVelocity);
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break;
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case AL_DISTANCE_MODEL:
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value = static_cast<ALdouble>(context->mDistanceModel);
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break;
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case AL_SPEED_OF_SOUND:
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value = static_cast<ALdouble>(context->SpeedOfSound);
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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if(context->DeferUpdates.load(std::memory_order_acquire))
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value = static_cast<ALdouble>(AL_TRUE);
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break;
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case AL_GAIN_LIMIT_SOFT:
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value = static_cast<ALdouble>GAIN_MIX_MAX/context->GainBoost;
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break;
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case AL_NUM_RESAMPLERS_SOFT:
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value = static_cast<ALdouble>(ResamplerMax + 1);
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break;
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case AL_DEFAULT_RESAMPLER_SOFT:
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value = static_cast<ALdouble>(ResamplerDefault);
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid double property 0x%04x", pname);
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}
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return value;
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}
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END_API_FUNC
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AL_API ALfloat AL_APIENTRY alGetFloat(ALenum pname)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return 0.0f;
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std::lock_guard<std::mutex> _{context->PropLock};
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ALfloat value{0.0f};
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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value = context->DopplerFactor;
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break;
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case AL_DOPPLER_VELOCITY:
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value = context->DopplerVelocity;
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break;
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case AL_DISTANCE_MODEL:
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value = static_cast<ALfloat>(context->mDistanceModel);
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break;
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case AL_SPEED_OF_SOUND:
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value = context->SpeedOfSound;
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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if(context->DeferUpdates.load(std::memory_order_acquire))
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value = static_cast<ALfloat>(AL_TRUE);
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break;
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case AL_GAIN_LIMIT_SOFT:
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value = GAIN_MIX_MAX/context->GainBoost;
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break;
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case AL_NUM_RESAMPLERS_SOFT:
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value = static_cast<ALfloat>(ResamplerMax + 1);
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break;
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case AL_DEFAULT_RESAMPLER_SOFT:
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value = static_cast<ALfloat>(ResamplerDefault);
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid float property 0x%04x", pname);
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}
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return value;
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}
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END_API_FUNC
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AL_API ALint AL_APIENTRY alGetInteger(ALenum pname)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return 0;
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std::lock_guard<std::mutex> _{context->PropLock};
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ALint value{0};
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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value = static_cast<ALint>(context->DopplerFactor);
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break;
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case AL_DOPPLER_VELOCITY:
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value = static_cast<ALint>(context->DopplerVelocity);
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break;
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case AL_DISTANCE_MODEL:
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value = static_cast<ALint>(context->mDistanceModel);
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break;
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case AL_SPEED_OF_SOUND:
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value = static_cast<ALint>(context->SpeedOfSound);
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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if(context->DeferUpdates.load(std::memory_order_acquire))
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value = static_cast<ALint>(AL_TRUE);
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break;
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case AL_GAIN_LIMIT_SOFT:
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value = static_cast<ALint>(GAIN_MIX_MAX/context->GainBoost);
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break;
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case AL_NUM_RESAMPLERS_SOFT:
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value = ResamplerMax + 1;
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break;
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case AL_DEFAULT_RESAMPLER_SOFT:
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value = ResamplerDefault;
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid integer property 0x%04x", pname);
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}
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return value;
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}
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END_API_FUNC
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extern "C" AL_API ALint64SOFT AL_APIENTRY alGetInteger64SOFT(ALenum pname)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return 0;
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std::lock_guard<std::mutex> _{context->PropLock};
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ALint64SOFT value{0};
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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value = (ALint64SOFT)context->DopplerFactor;
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break;
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case AL_DOPPLER_VELOCITY:
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value = (ALint64SOFT)context->DopplerVelocity;
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break;
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case AL_DISTANCE_MODEL:
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value = (ALint64SOFT)context->mDistanceModel;
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break;
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case AL_SPEED_OF_SOUND:
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value = (ALint64SOFT)context->SpeedOfSound;
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break;
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case AL_DEFERRED_UPDATES_SOFT:
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if(context->DeferUpdates.load(std::memory_order_acquire))
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value = (ALint64SOFT)AL_TRUE;
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break;
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case AL_GAIN_LIMIT_SOFT:
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value = (ALint64SOFT)(GAIN_MIX_MAX/context->GainBoost);
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break;
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case AL_NUM_RESAMPLERS_SOFT:
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value = (ALint64SOFT)(ResamplerMax + 1);
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break;
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case AL_DEFAULT_RESAMPLER_SOFT:
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value = (ALint64SOFT)ResamplerDefault;
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid integer64 property 0x%04x", pname);
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}
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return value;
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}
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END_API_FUNC
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AL_API void* AL_APIENTRY alGetPointerSOFT(ALenum pname)
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START_API_FUNC
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{
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return nullptr;
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std::lock_guard<std::mutex> _{context->PropLock};
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void *value{nullptr};
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switch(pname)
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{
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case AL_EVENT_CALLBACK_FUNCTION_SOFT:
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value = reinterpret_cast<void*>(context->EventCb);
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break;
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case AL_EVENT_CALLBACK_USER_PARAM_SOFT:
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value = context->EventParam;
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break;
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid pointer property 0x%04x", pname);
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}
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return value;
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}
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END_API_FUNC
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AL_API ALvoid AL_APIENTRY alGetBooleanv(ALenum pname, ALboolean *values)
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START_API_FUNC
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{
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if(values)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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case AL_GAIN_LIMIT_SOFT:
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case AL_NUM_RESAMPLERS_SOFT:
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case AL_DEFAULT_RESAMPLER_SOFT:
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values[0] = alGetBoolean(pname);
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return;
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}
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}
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return;
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if(!values)
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alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
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else switch(pname)
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{
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid boolean-vector property 0x%04x", pname);
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}
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}
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END_API_FUNC
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AL_API ALvoid AL_APIENTRY alGetDoublev(ALenum pname, ALdouble *values)
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START_API_FUNC
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{
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if(values)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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case AL_GAIN_LIMIT_SOFT:
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case AL_NUM_RESAMPLERS_SOFT:
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case AL_DEFAULT_RESAMPLER_SOFT:
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values[0] = alGetDouble(pname);
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return;
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}
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}
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return;
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if(!values)
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alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
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else switch(pname)
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{
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid double-vector property 0x%04x", pname);
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}
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}
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END_API_FUNC
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AL_API ALvoid AL_APIENTRY alGetFloatv(ALenum pname, ALfloat *values)
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START_API_FUNC
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{
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if(values)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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case AL_GAIN_LIMIT_SOFT:
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case AL_NUM_RESAMPLERS_SOFT:
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case AL_DEFAULT_RESAMPLER_SOFT:
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values[0] = alGetFloat(pname);
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return;
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}
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}
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ContextRef context{GetContextRef()};
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if(UNLIKELY(!context)) return;
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if(!values)
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alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
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else switch(pname)
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{
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default:
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alSetError(context.get(), AL_INVALID_VALUE, "Invalid float-vector property 0x%04x", pname);
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}
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}
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END_API_FUNC
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AL_API ALvoid AL_APIENTRY alGetIntegerv(ALenum pname, ALint *values)
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START_API_FUNC
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{
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if(values)
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{
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switch(pname)
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{
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case AL_DOPPLER_FACTOR:
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case AL_DOPPLER_VELOCITY:
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case AL_DISTANCE_MODEL:
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case AL_SPEED_OF_SOUND:
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case AL_DEFERRED_UPDATES_SOFT:
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case AL_GAIN_LIMIT_SOFT:
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case AL_NUM_RESAMPLERS_SOFT:
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case AL_DEFAULT_RESAMPLER_SOFT:
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values[0] = alGetInteger(pname);
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return;
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}
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}
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ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
if(!values)
|
|
alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
|
|
else switch(pname)
|
|
{
|
|
default:
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Invalid integer-vector property 0x%04x", pname);
|
|
}
|
|
}
|
|
END_API_FUNC
|
|
|
|
extern "C" AL_API void AL_APIENTRY alGetInteger64vSOFT(ALenum pname, ALint64SOFT *values)
|
|
START_API_FUNC
|
|
{
|
|
if(values)
|
|
{
|
|
switch(pname)
|
|
{
|
|
case AL_DOPPLER_FACTOR:
|
|
case AL_DOPPLER_VELOCITY:
|
|
case AL_DISTANCE_MODEL:
|
|
case AL_SPEED_OF_SOUND:
|
|
case AL_DEFERRED_UPDATES_SOFT:
|
|
case AL_GAIN_LIMIT_SOFT:
|
|
case AL_NUM_RESAMPLERS_SOFT:
|
|
case AL_DEFAULT_RESAMPLER_SOFT:
|
|
values[0] = alGetInteger64SOFT(pname);
|
|
return;
|
|
}
|
|
}
|
|
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
if(!values)
|
|
alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
|
|
else switch(pname)
|
|
{
|
|
default:
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Invalid integer64-vector property 0x%04x", pname);
|
|
}
|
|
}
|
|
END_API_FUNC
|
|
|
|
AL_API void AL_APIENTRY alGetPointervSOFT(ALenum pname, void **values)
|
|
START_API_FUNC
|
|
{
|
|
if(values)
|
|
{
|
|
switch(pname)
|
|
{
|
|
case AL_EVENT_CALLBACK_FUNCTION_SOFT:
|
|
case AL_EVENT_CALLBACK_USER_PARAM_SOFT:
|
|
values[0] = alGetPointerSOFT(pname);
|
|
return;
|
|
}
|
|
}
|
|
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
if(!values)
|
|
alSetError(context.get(), AL_INVALID_VALUE, "NULL pointer");
|
|
else switch(pname)
|
|
{
|
|
default:
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Invalid pointer-vector property 0x%04x", pname);
|
|
}
|
|
}
|
|
END_API_FUNC
|
|
|
|
AL_API const ALchar* AL_APIENTRY alGetString(ALenum pname)
|
|
START_API_FUNC
|
|
{
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return nullptr;
|
|
|
|
const ALchar *value{nullptr};
|
|
switch(pname)
|
|
{
|
|
case AL_VENDOR:
|
|
value = alVendor;
|
|
break;
|
|
|
|
case AL_VERSION:
|
|
value = alVersion;
|
|
break;
|
|
|
|
case AL_RENDERER:
|
|
value = alRenderer;
|
|
break;
|
|
|
|
case AL_EXTENSIONS:
|
|
value = context->ExtensionList;
|
|
break;
|
|
|
|
case AL_NO_ERROR:
|
|
value = alNoError;
|
|
break;
|
|
|
|
case AL_INVALID_NAME:
|
|
value = alErrInvalidName;
|
|
break;
|
|
|
|
case AL_INVALID_ENUM:
|
|
value = alErrInvalidEnum;
|
|
break;
|
|
|
|
case AL_INVALID_VALUE:
|
|
value = alErrInvalidValue;
|
|
break;
|
|
|
|
case AL_INVALID_OPERATION:
|
|
value = alErrInvalidOp;
|
|
break;
|
|
|
|
case AL_OUT_OF_MEMORY:
|
|
value = alErrOutOfMemory;
|
|
break;
|
|
|
|
default:
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Invalid string property 0x%04x", pname);
|
|
}
|
|
return value;
|
|
}
|
|
END_API_FUNC
|
|
|
|
AL_API ALvoid AL_APIENTRY alDopplerFactor(ALfloat value)
|
|
START_API_FUNC
|
|
{
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
if(!(value >= 0.0f && std::isfinite(value)))
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Doppler factor %f out of range", value);
|
|
else
|
|
{
|
|
std::lock_guard<std::mutex> _{context->PropLock};
|
|
context->DopplerFactor = value;
|
|
DO_UPDATEPROPS();
|
|
}
|
|
}
|
|
END_API_FUNC
|
|
|
|
AL_API ALvoid AL_APIENTRY alDopplerVelocity(ALfloat value)
|
|
START_API_FUNC
|
|
{
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
if((context->EnabledEvts.load(std::memory_order_relaxed)&EventType_Deprecated))
|
|
{
|
|
static constexpr ALCchar msg[] =
|
|
"alDopplerVelocity is deprecated in AL1.1, use alSpeedOfSound";
|
|
const ALsizei msglen = static_cast<ALsizei>(strlen(msg));
|
|
std::lock_guard<std::mutex> _{context->EventCbLock};
|
|
ALbitfieldSOFT enabledevts{context->EnabledEvts.load(std::memory_order_relaxed)};
|
|
if((enabledevts&EventType_Deprecated) && context->EventCb)
|
|
(*context->EventCb)(AL_EVENT_TYPE_DEPRECATED_SOFT, 0, 0, msglen, msg,
|
|
context->EventParam);
|
|
}
|
|
|
|
if(!(value >= 0.0f && std::isfinite(value)))
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Doppler velocity %f out of range", value);
|
|
else
|
|
{
|
|
std::lock_guard<std::mutex> _{context->PropLock};
|
|
context->DopplerVelocity = value;
|
|
DO_UPDATEPROPS();
|
|
}
|
|
}
|
|
END_API_FUNC
|
|
|
|
AL_API ALvoid AL_APIENTRY alSpeedOfSound(ALfloat value)
|
|
START_API_FUNC
|
|
{
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
if(!(value > 0.0f && std::isfinite(value)))
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Speed of sound %f out of range", value);
|
|
else
|
|
{
|
|
std::lock_guard<std::mutex> _{context->PropLock};
|
|
context->SpeedOfSound = value;
|
|
DO_UPDATEPROPS();
|
|
}
|
|
}
|
|
END_API_FUNC
|
|
|
|
AL_API ALvoid AL_APIENTRY alDistanceModel(ALenum value)
|
|
START_API_FUNC
|
|
{
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
if(!(value == AL_INVERSE_DISTANCE || value == AL_INVERSE_DISTANCE_CLAMPED ||
|
|
value == AL_LINEAR_DISTANCE || value == AL_LINEAR_DISTANCE_CLAMPED ||
|
|
value == AL_EXPONENT_DISTANCE || value == AL_EXPONENT_DISTANCE_CLAMPED ||
|
|
value == AL_NONE))
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Distance model 0x%04x out of range", value);
|
|
else
|
|
{
|
|
std::lock_guard<std::mutex> _{context->PropLock};
|
|
context->mDistanceModel = static_cast<DistanceModel>(value);
|
|
if(!context->SourceDistanceModel)
|
|
DO_UPDATEPROPS();
|
|
}
|
|
}
|
|
END_API_FUNC
|
|
|
|
|
|
AL_API ALvoid AL_APIENTRY alDeferUpdatesSOFT(void)
|
|
START_API_FUNC
|
|
{
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
ALCcontext_DeferUpdates(context.get());
|
|
}
|
|
END_API_FUNC
|
|
|
|
AL_API ALvoid AL_APIENTRY alProcessUpdatesSOFT(void)
|
|
START_API_FUNC
|
|
{
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return;
|
|
|
|
ALCcontext_ProcessUpdates(context.get());
|
|
}
|
|
END_API_FUNC
|
|
|
|
|
|
AL_API const ALchar* AL_APIENTRY alGetStringiSOFT(ALenum pname, ALsizei index)
|
|
START_API_FUNC
|
|
{
|
|
const char *ResamplerNames[] = {
|
|
alPointResampler, alLinearResampler,
|
|
alCubicResampler, alBSinc12Resampler,
|
|
alBSinc24Resampler,
|
|
};
|
|
static_assert(COUNTOF(ResamplerNames) == ResamplerMax+1, "Incorrect ResamplerNames list");
|
|
|
|
ContextRef context{GetContextRef()};
|
|
if(UNLIKELY(!context)) return nullptr;
|
|
|
|
const ALchar *value{nullptr};
|
|
switch(pname)
|
|
{
|
|
case AL_RESAMPLER_NAME_SOFT:
|
|
if(index < 0 || static_cast<size_t>(index) >= COUNTOF(ResamplerNames))
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Resampler name index %d out of range",
|
|
index);
|
|
else
|
|
value = ResamplerNames[index];
|
|
break;
|
|
|
|
default:
|
|
alSetError(context.get(), AL_INVALID_VALUE, "Invalid string indexed property");
|
|
}
|
|
return value;
|
|
}
|
|
END_API_FUNC
|
|
|
|
|
|
void UpdateContextProps(ALCcontext *context)
|
|
{
|
|
/* Get an unused proprty container, or allocate a new one as needed. */
|
|
ALcontextProps *props{context->FreeContextProps.load(std::memory_order_acquire)};
|
|
if(!props)
|
|
props = static_cast<ALcontextProps*>(al_calloc(16, sizeof(*props)));
|
|
else
|
|
{
|
|
ALcontextProps *next;
|
|
do {
|
|
next = props->next.load(std::memory_order_relaxed);
|
|
} while(context->FreeContextProps.compare_exchange_weak(props, next,
|
|
std::memory_order_seq_cst, std::memory_order_acquire) == 0);
|
|
}
|
|
|
|
/* Copy in current property values. */
|
|
props->MetersPerUnit = context->MetersPerUnit;
|
|
|
|
props->DopplerFactor = context->DopplerFactor;
|
|
props->DopplerVelocity = context->DopplerVelocity;
|
|
props->SpeedOfSound = context->SpeedOfSound;
|
|
|
|
props->SourceDistanceModel = context->SourceDistanceModel;
|
|
props->mDistanceModel = context->mDistanceModel;
|
|
|
|
/* Set the new container for updating internal parameters. */
|
|
props = context->Update.exchange(props, std::memory_order_acq_rel);
|
|
if(props)
|
|
{
|
|
/* If there was an unused update container, put it back in the
|
|
* freelist.
|
|
*/
|
|
AtomicReplaceHead(context->FreeContextProps, props);
|
|
}
|
|
}
|