/* * $Id$ * * ***** BEGIN GPL/BL DUAL LICENSE BLOCK ***** * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. The Blender * Foundation also sells licenses for use in proprietary software under * the Blender License. See http://www.blender.org/BL/ for information * about this. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. * All rights reserved. * * The Original Code is: all of this file. * * Contributor(s): none yet. * * ***** END GPL/BL DUAL LICENSE BLOCK ***** * SND_OpenALDevice derived from SND_IAudioDevice */ #ifdef WIN32 #pragma warning (disable:4786) // get rid of stupid stl-visual compiler debug warning #endif //WIN32 #include "SND_OpenALDevice.h" #ifndef __APPLE__ #include "SND_SDLCDDevice.h" #endif #include "SoundDefines.h" #include "SND_Utils.h" #include #include #include #include #include #if defined(WIN32) #include #else #include #endif #include #include /* untill openal gets unified we need this hack for non-windows systems */ #if !defined(WIN32) && !defined(ALC_MAJOR_VERSION) #include ALvoid alutLoadWAVMemory(ALbyte *memory,ALenum *format,ALvoid **data,ALsizei *size,ALsizei *freq,ALboolean *loop); ALvoid alutUnloadWAV(ALenum format,ALvoid *data,ALsizei size,ALsizei freq); typedef struct /* WAV File-header */ { ALubyte Id[4]; ALsizei Size; ALubyte Type[4]; } WAVFileHdr_Struct; typedef struct /* WAV Fmt-header */ { ALushort Format; ALushort Channels; ALuint SamplesPerSec; ALuint BytesPerSec; ALushort BlockAlign; ALushort BitsPerSample; } WAVFmtHdr_Struct; typedef struct /* WAV FmtEx-header */ { ALushort Size; ALushort SamplesPerBlock; } WAVFmtExHdr_Struct; typedef struct /* WAV Smpl-header */ { ALuint Manufacturer; ALuint Product; ALuint SamplePeriod; ALuint Note; ALuint FineTune; ALuint SMPTEFormat; ALuint SMPTEOffest; ALuint Loops; ALuint SamplerData; struct { ALuint Identifier; ALuint Type; ALuint Start; ALuint End; ALuint Fraction; ALuint Count; } Loop[1]; } WAVSmplHdr_Struct; typedef struct /* WAV Chunk-header */ { ALubyte Id[4]; ALuint Size; } WAVChunkHdr_Struct; ALvoid alutLoadWAVMemory(ALbyte *memory,ALenum *format,ALvoid **data,ALsizei *size,ALsizei *freq,ALboolean *loop) { WAVChunkHdr_Struct ChunkHdr; WAVFmtExHdr_Struct FmtExHdr; WAVFileHdr_Struct FileHdr; WAVSmplHdr_Struct SmplHdr; WAVFmtHdr_Struct FmtHdr; ALbyte *Stream; *format=AL_FORMAT_MONO16; *data=NULL; *size=0; *freq=22050; *loop=AL_FALSE; if (memory) { Stream=memory; if (Stream) { memcpy(&FileHdr,Stream,sizeof(WAVFileHdr_Struct)); Stream+=sizeof(WAVFileHdr_Struct); FileHdr.Size=((FileHdr.Size+1)&~1)-4; while ((FileHdr.Size!=0)&&(memcpy(&ChunkHdr,Stream,sizeof(WAVChunkHdr_Struct)))) { Stream+=sizeof(WAVChunkHdr_Struct); if (!memcmp(ChunkHdr.Id,"fmt ",4)) { memcpy(&FmtHdr,Stream,sizeof(WAVFmtHdr_Struct)); if (FmtHdr.Format==0x0001) { *format=(FmtHdr.Channels==1? (FmtHdr.BitsPerSample==8?AL_FORMAT_MONO8:AL_FORMAT_MONO16): (FmtHdr.BitsPerSample==8?AL_FORMAT_STEREO8:AL_FORMAT_STEREO16)); *freq=FmtHdr.SamplesPerSec; Stream+=ChunkHdr.Size; } else { memcpy(&FmtExHdr,Stream,sizeof(WAVFmtExHdr_Struct)); Stream+=ChunkHdr.Size; } } else if (!memcmp(ChunkHdr.Id,"data",4)) { if (FmtHdr.Format==0x0001) { *size=ChunkHdr.Size; *data=malloc(ChunkHdr.Size+31); if (*data) memcpy(*data,Stream,ChunkHdr.Size); memset(((char *)*data)+ChunkHdr.Size,0,31); Stream+=ChunkHdr.Size; } else if (FmtHdr.Format==0x0011) { //IMA ADPCM } else if (FmtHdr.Format==0x0055) { //MP3 WAVE } } else if (!memcmp(ChunkHdr.Id,"smpl",4)) { memcpy(&SmplHdr,Stream,sizeof(WAVSmplHdr_Struct)); *loop = (SmplHdr.Loops ? AL_TRUE : AL_FALSE); Stream+=ChunkHdr.Size; } else Stream+=ChunkHdr.Size; Stream+=ChunkHdr.Size&1; FileHdr.Size-=(((ChunkHdr.Size+1)&~1)+8); } } } } ALvoid alutUnloadWAV(ALenum format,ALvoid *data,ALsizei size,ALsizei freq) { if (data) free(data); } #endif /* WIN32 */ #ifdef __APPLE__ #define OUDE_OPENAL 1 #endif SND_OpenALDevice::SND_OpenALDevice() : SND_AudioDevice(), m_context(NULL), m_device(NULL) { /* Removed the functionality for checking if noaudio was provided on */ /* the commandline. */ m_audio = true; m_context = NULL; m_buffersinitialized = false; m_sourcesinitialized = false; // let's check if we can get openal to initialize... if (m_audio) { #ifdef OUDE_OPENAL m_audio = true; // openal_2.12 alutInit(NULL, NULL); // openal_2.12 #else m_audio = false; ALCdevice *dev = alcOpenDevice(NULL); if (dev) { m_context = alcCreateContext(dev, NULL); if (m_context) { alcMakeContextCurrent((ALCcontext*)m_context); m_audio = true; m_device = dev; #ifdef __linux__ /* * SIGHUP Hack: * * On Linux, alcDestroyContext generates a SIGHUP (Hangup) when killing the OpenAL * mixer thread, which kills Blender. * * So we set the signal to ignore.... * * TODO: check if this applies to other platforms. * */ signal(SIGHUP, SIG_IGN); #endif } } #endif } // then try to generate some buffers if (m_audio) { // let openal generate its buffers alGenBuffers(NUM_BUFFERS, m_buffers); m_buffersinitialized = true; for (int i = 0; i < NUM_BUFFERS; i++) { if (!alIsBuffer(m_buffers[i])) { //printf("\n\n WARNING: OpenAL returned with an error. Continuing without audio.\n\n"); m_audio = false; break; } } } // next: the sources if (m_audio) { #ifdef OUDE_OPENAL ALenum alc_error = ALC_NO_ERROR; // openal_2.12 #elif defined(_WIN32) // alcGetError has no arguments on windows ALenum alc_error = alcGetError(); // openal_2.14+ #else ALenum alc_error = alcGetError(NULL); // openal_2.14+ #endif // let openal generate its sources if (alc_error == ALC_NO_ERROR) { alGenSources(NUM_SOURCES, m_sources); m_sourcesinitialized = true; } } // let's get us a wavecache if (m_audio) { m_wavecache = new SND_WaveCache(); } #ifndef __APPLE__ m_cdrom = new SND_SDLCDDevice(); #endif } void SND_OpenALDevice::UseCD(void) const { // only fmod has CD support, so only create it here SND_CDObject::CreateSystem(); } void SND_OpenALDevice::MakeCurrent() const { #ifdef WIN32 alcMakeContextCurrent(m_context); #endif } SND_OpenALDevice::~SND_OpenALDevice() { MakeCurrent(); if (m_buffersinitialized) { alDeleteBuffers(NUM_BUFFERS, m_buffers); m_buffersinitialized = false; } if (m_sourcesinitialized) { for (int i = 0; i < NUM_SOURCES; i++) alSourceStop(m_sources[i]); alDeleteSources(NUM_SOURCES, m_sources); m_sourcesinitialized = false; } if (m_context) { MakeCurrent(); alcDestroyContext((ALCcontext*)m_context); m_context = NULL; } #ifdef __linux__ // restore the signal state above. signal(SIGHUP, SIG_DFL); #endif // let's see if we used the cd. if not, just leave it alone SND_CDObject* pCD = SND_CDObject::Instance(); if (pCD) { this->StopCD(); SND_CDObject::DisposeSystem(); } #ifndef __APPLE__ if (m_cdrom) delete m_cdrom; #endif #ifdef OUDE_OPENAL if (m_audio) alutExit(); #else if (m_device) alcCloseDevice((ALCdevice*) m_device); #endif } SND_WaveSlot* SND_OpenALDevice::LoadSample(const STR_String& name, void* memlocation, int size) { SND_WaveSlot* waveslot = NULL; STR_String samplename = name; if (m_audio) { /* create the waveslot */ waveslot = m_wavecache->GetWaveSlot(samplename); /* do we support this sample? */ if (SND_IsSampleValid(name, memlocation)) { if (waveslot) { int buffer = waveslot->GetBuffer(); void* data = NULL; #ifndef __APPLE__ char loop = 'a'; #endif int sampleformat, bitrate, numberofchannels; ALenum al_error = alGetError(); #ifdef OUDE_OPENAL unsigned int samplerate, numberofsamples; // openal_2.12 #else int samplerate, numberofsamples; // openal_2.14+ #endif /* Give them some safe defaults just incase */ bitrate = numberofchannels = 0; /* load the sample from memory? */ if (size && memlocation) { waveslot->SetFileSize(size); /* what was (our) buffer? */ int buffer = waveslot->GetBuffer(); /* get some info out of the sample */ SND_GetSampleInfo((signed char*)memlocation, waveslot); numberofchannels = SND_GetNumberOfChannels(memlocation); bitrate = SND_GetBitRate(memlocation); /* load the sample into openal */ #if defined(OUDE_OPENAL) || defined (__APPLE__) alutLoadWAVMemory((char*)memlocation, &sampleformat, &data, &numberofsamples, &samplerate); // openal_2.12 #else alutLoadWAVMemory((ALbyte*)memlocation, &sampleformat, &data, &numberofsamples, &samplerate, &loop);// openal_2.14+ #endif /* put it in the buffer */ alBufferData(m_buffers[buffer], sampleformat, data, numberofsamples, samplerate); } /* or from file? */ else { #ifdef __APPLE__ alutLoadWAVFile((ALbyte *)samplename.Ptr(), &sampleformat, &data, &numberofsamples, &samplerate); #else alutLoadWAVFile((ALbyte *)samplename.Ptr(), &sampleformat, &data, &numberofsamples, &samplerate, &loop); #endif /* put it in the buffer */ alBufferData(m_buffers[buffer], sampleformat, data, numberofsamples, samplerate); } /* fill the waveslot with info */ al_error = alGetError(); if (al_error == AL_NO_ERROR && m_buffers[buffer]) { waveslot->SetData(data); waveslot->SetSampleFormat(sampleformat); waveslot->SetNumberOfChannels(numberofchannels); waveslot->SetSampleRate(samplerate); waveslot->SetBitRate(bitrate); waveslot->SetNumberOfSamples(numberofsamples); /* if the loading succeeded, mark the waveslot */ waveslot->SetLoaded(true); } else { /* or when it failed, free the waveslot */ m_wavecache->RemoveSample(waveslot->GetSampleName(), waveslot->GetBuffer()); waveslot = NULL; } /* and free the original stuff (copy was made in openal) */ alutUnloadWAV(sampleformat, data, numberofsamples, samplerate); } } else { /* sample not supported, remove waveslot */ m_wavecache->RemoveSample(waveslot->GetSampleName(), waveslot->GetBuffer()); waveslot = NULL; } } return waveslot; } // listener's and general stuff ////////////////////////////////////////////////////// /* sets the global dopplervelocity */ void SND_OpenALDevice::SetDopplerVelocity(MT_Scalar dopplervelocity) const { alDopplerVelocity ((float)dopplervelocity); } /* sets the global dopplerfactor */ void SND_OpenALDevice::SetDopplerFactor(MT_Scalar dopplerfactor) const { alDopplerFactor ((float)dopplerfactor); } /* sets the global rolloff factor */ void SND_OpenALDevice::SetListenerRollOffFactor(MT_Scalar rollofffactor) const { // not implemented in openal } void SND_OpenALDevice::NextFrame() const { // CD #ifndef __APPLE__ m_cdrom->NextFrame(); #endif // not needed by openal } // set the gain for the listener void SND_OpenALDevice::SetListenerGain(float gain) const { alListenerf (AL_GAIN, gain); } void SND_OpenALDevice::InitListener() { // initialize the listener with these values that won't change // (as long as we can have only one listener) // now we can superimpose all listeners on each other (for they // have the same settings) float lispos[3] = {0,0,0}; float lisvel[3] = {0,0,0}; #ifdef WIN32 float lisori[6] = {0,1,0,0,0,1}; #else float lisori[6] = {0,0,1,0,-1,0}; #endif alListenerfv(AL_POSITION, lispos); alListenerfv(AL_VELOCITY, lisvel); alListenerfv(AL_ORIENTATION, lisori); } // source playstate stuff //////////////////////////////////////////////////////////// /* sets the buffer */ void SND_OpenALDevice::SetObjectBuffer(int id, unsigned int buffer) { alSourcei (m_sources[id], AL_BUFFER, m_buffers[buffer]); } // check if the sound's still playing int SND_OpenALDevice::GetPlayState(int id) { int alstate = 0; int result = 0; #ifdef __APPLE__ alGetSourcei(m_sources[id], AL_SOURCE_STATE, &alstate); #else alGetSourceiv(m_sources[id], AL_SOURCE_STATE, &alstate); #endif switch(alstate) { case AL_INITIAL: { result = SND_INITIAL; break; } case AL_PLAYING: { result = SND_PLAYING; break; } case AL_PAUSED: { result = SND_PAUSED; break; } case AL_STOPPED: { result = SND_STOPPED; break; } default: result = SND_UNKNOWN; } return result; } // make the source play void SND_OpenALDevice::PlayObject(int id) { alSourcePlay(m_sources[id]); } // make the source stop void SND_OpenALDevice::StopObject(int id) const { float obpos[3] = {0,0,0}; float obvel[3] = {0,0,0}; alSourcefv(m_sources[id], AL_POSITION, obpos); alSourcefv(m_sources[id], AL_VELOCITY, obvel); alSourcef(m_sources[id], AL_GAIN, 1.0); alSourcef(m_sources[id], AL_PITCH, 1.0); alSourcei(m_sources[id], AL_LOOPING, AL_FALSE); alSourceStop(m_sources[id]); } // stop all sources void SND_OpenALDevice::StopAllObjects() { alSourceStopv(NUM_SOURCES, m_sources); } // pause the source void SND_OpenALDevice::PauseObject(int id) const { alSourcePause(m_sources[id]); } // source properties stuff //////////////////////////////////////////////////////////// // give openal the object's pitch void SND_OpenALDevice::SetObjectPitch(int id, MT_Scalar pitch) const { alSourcef (m_sources[id], AL_PITCH, (float)pitch); } // give openal the object's gain void SND_OpenALDevice::SetObjectGain(int id, MT_Scalar gain) const { alSourcef (m_sources[id], AL_GAIN, (float)gain); } // give openal the object's looping void SND_OpenALDevice::SetObjectLoop(int id, unsigned int loopmode) const { if (loopmode == SND_LOOP_OFF) { //printf("%d - ", id); alSourcei (m_sources[id], AL_LOOPING, AL_FALSE); } else alSourcei (m_sources[id], AL_LOOPING, AL_TRUE); } void SND_OpenALDevice::SetObjectLoopPoints(int id, unsigned int loopstart, unsigned int loopend) const { } void SND_OpenALDevice::SetObjectMinGain(int id, MT_Scalar mingain) const { alSourcef (m_sources[id], AL_MIN_GAIN, (float)mingain); } void SND_OpenALDevice::SetObjectMaxGain(int id, MT_Scalar maxgain) const { alSourcef (m_sources[id], AL_MAX_GAIN, (float)maxgain); } void SND_OpenALDevice::SetObjectRollOffFactor(int id, MT_Scalar rollofffactor) const { alSourcef (m_sources[id], AL_ROLLOFF_FACTOR, (float)rollofffactor); } void SND_OpenALDevice::SetObjectReferenceDistance(int id, MT_Scalar referencedistance) const { alSourcef (m_sources[id], AL_REFERENCE_DISTANCE, (float)referencedistance); } // give openal the object's position void SND_OpenALDevice::ObjectIs2D(int id) const { float obpos[3] = {0,0,0}; float obvel[3] = {0,0,0}; alSourcefv(m_sources[id], AL_POSITION, obpos); alSourcefv(m_sources[id], AL_VELOCITY, obvel); } void SND_OpenALDevice::SetObjectTransform(int id, const MT_Vector3& position, const MT_Vector3& velocity, const MT_Matrix3x3& orientation, const MT_Vector3& lisposition, const MT_Scalar& rollofffactor) const { float obpos[3]; float obvel[3]; obpos[0] = (float)position[0] * (float)rollofffactor; //x (l/r) obpos[1] = (float)position[1] * (float)rollofffactor; obpos[2] = (float)position[2] * (float)rollofffactor; alSourcefv(m_sources[id], AL_POSITION, obpos); velocity.getValue(obvel); alSourcefv(m_sources[id], AL_VELOCITY, obvel); } void SND_OpenALDevice::PlayCD(int track) const { #ifndef __APPLE__ m_cdrom->PlayCD(track); #endif } void SND_OpenALDevice::PauseCD(bool pause) const { #ifndef __APPLE__ m_cdrom->PauseCD(pause); #endif } void SND_OpenALDevice::StopCD() const { #ifndef __APPLE__ SND_CDObject* pCD = SND_CDObject::Instance(); if (pCD && pCD->GetUsed()) { m_cdrom->StopCD(); } #endif } void SND_OpenALDevice::SetCDPlaymode(int playmode) const { #ifndef __APPLE__ m_cdrom->SetCDPlaymode(playmode); #endif } void SND_OpenALDevice::SetCDGain(MT_Scalar gain) const { #ifndef __APPLE__ m_cdrom->SetCDGain(gain); #endif }