diff options
Diffstat (limited to 'indra/llaudio/llaudioengine_fmod.cpp')
| -rw-r--r-- | indra/llaudio/llaudioengine_fmod.cpp | 128 |
1 files changed, 70 insertions, 58 deletions
diff --git a/indra/llaudio/llaudioengine_fmod.cpp b/indra/llaudio/llaudioengine_fmod.cpp index d7f58defca..a40de9fa68 100644 --- a/indra/llaudio/llaudioengine_fmod.cpp +++ b/indra/llaudio/llaudioengine_fmod.cpp @@ -2,31 +2,25 @@ * @file audioengine_fmod.cpp * @brief Implementation of LLAudioEngine class abstracting the audio support as a FMOD 3D implementation * - * $LicenseInfo:firstyear=2002&license=viewergpl$ - * - * Copyright (c) 2002-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2002&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -54,13 +48,12 @@ extern "C" { void * F_CALLBACKAPI windCallback(void *originalbuffer, void *newbuffer, int length, void* userdata); } -FSOUND_DSPUNIT *gWindDSP = NULL; - LLAudioEngine_FMOD::LLAudioEngine_FMOD() { mInited = false; mWindGen = NULL; + mWindDSP = NULL; } @@ -258,10 +251,10 @@ void LLAudioEngine_FMOD::allocateListener(void) void LLAudioEngine_FMOD::shutdown() { - if (gWindDSP) + if (mWindDSP) { - FSOUND_DSP_SetActive(gWindDSP,false); - FSOUND_DSP_Free(gWindDSP); + FSOUND_DSP_SetActive(mWindDSP,false); + FSOUND_DSP_Free(mWindDSP); } stopInternetStream(); @@ -289,29 +282,66 @@ LLAudioChannel * LLAudioEngine_FMOD::createChannel() } -void LLAudioEngine_FMOD::initWind() +bool LLAudioEngine_FMOD::initWind() { - mWindGen = new LLWindGen<MIXBUFFERFORMAT>; + if (!mWindGen) + { + bool enable; + + switch (FSOUND_GetMixer()) + { + case FSOUND_MIXER_MMXP5: + case FSOUND_MIXER_MMXP6: + case FSOUND_MIXER_QUALITY_MMXP5: + case FSOUND_MIXER_QUALITY_MMXP6: + enable = (typeid(MIXBUFFERFORMAT) == typeid(S16)); + break; + case FSOUND_MIXER_BLENDMODE: + enable = (typeid(MIXBUFFERFORMAT) == typeid(S32)); + break; + case FSOUND_MIXER_QUALITY_FPU: + enable = (typeid(MIXBUFFERFORMAT) == typeid(F32)); + break; + default: + // FSOUND_GetMixer() does not return a valid mixer type on Darwin + LL_INFOS("AppInit") << "Unknown FMOD mixer type, assuming default" << LL_ENDL; + enable = true; + break; + } + + if (enable) + { + mWindGen = new LLWindGen<MIXBUFFERFORMAT>(FSOUND_GetOutputRate()); + } + else + { + LL_WARNS("AppInit") << "Incompatible FMOD mixer type, wind noise disabled" << LL_ENDL; + } + } - if (!gWindDSP) + mNextWindUpdate = 0.0; + + if (mWindGen && !mWindDSP) { - gWindDSP = FSOUND_DSP_Create(&windCallback, FSOUND_DSP_DEFAULTPRIORITY_CLEARUNIT + 20, mWindGen); + mWindDSP = FSOUND_DSP_Create(&windCallback, FSOUND_DSP_DEFAULTPRIORITY_CLEARUNIT + 20, mWindGen); } - if (gWindDSP) + if (mWindDSP) { - FSOUND_DSP_SetActive(gWindDSP, true); + FSOUND_DSP_SetActive(mWindDSP, true); + return true; } - mNextWindUpdate = 0.0; + + return false; } void LLAudioEngine_FMOD::cleanupWind() { - if (gWindDSP) + if (mWindDSP) { - FSOUND_DSP_SetActive(gWindDSP, false); - FSOUND_DSP_Free(gWindDSP); - gWindDSP = NULL; + FSOUND_DSP_SetActive(mWindDSP, false); + FSOUND_DSP_Free(mWindDSP); + mWindDSP = NULL; } delete mWindGen; @@ -740,30 +770,12 @@ void * F_CALLBACKAPI windCallback(void *originalbuffer, void *newbuffer, int len // originalbuffer = fmod's original mixbuffer. // newbuffer = the buffer passed from the previous DSP unit. // length = length in samples at this mix time. - // param = user parameter passed through in FSOUND_DSP_Create. - // - // modify the buffer in some fashion + // userdata = user parameter passed through in FSOUND_DSP_Create. LLWindGen<LLAudioEngine_FMOD::MIXBUFFERFORMAT> *windgen = (LLWindGen<LLAudioEngine_FMOD::MIXBUFFERFORMAT> *)userdata; - U8 stride; - -#if LL_DARWIN - stride = sizeof(LLAudioEngine_FMOD::MIXBUFFERFORMAT); -#else - int mixertype = FSOUND_GetMixer(); - if (mixertype == FSOUND_MIXER_BLENDMODE || - mixertype == FSOUND_MIXER_QUALITY_FPU) - { - stride = 4; - } - else - { - stride = 2; - } -#endif - - newbuffer = windgen->windGenerate((LLAudioEngine_FMOD::MIXBUFFERFORMAT *)newbuffer, length, stride); + + newbuffer = windgen->windGenerate((LLAudioEngine_FMOD::MIXBUFFERFORMAT *)newbuffer, length); return newbuffer; } |