30e5b4a99e
Added conversion functions from our audio format enum to OpenAL's in preparation for supporting more formats. Reorganized cAudio defines, made it easier to access some compile time parameters. Fixed a bug where a source could not be played again after it reached the end of its audio stream. Added better checking for sources. IsValid() should provide a more useful indication of whether a source is usable. Added error checking and logging to cAudioCapture. Prevented initializing of cAudioManager until shutdown() has been called. Added a tutorial for Audio Effects. Added a footsteps sound for showing off Audio Effects. Moved the default compile location for the main library to lib/. The msvc project will copy the cAudio.dll to bin/win32-visual/
607 lines
19 KiB
C++
607 lines
19 KiB
C++
#include "../Headers/cAudioManager.h"
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#include "../Headers/cFileSource.h"
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#include "../Headers/cMemorySource.h"
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#include "../Headers/cUtils.h"
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#include "../Headers/cOggAudioDecoderFactory.h"
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#include "../Headers/cWavAudioDecoderFactory.h"
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#include "../Headers/cRawAudioDecoderFactory.h"
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#include "../Headers/cThread.h"
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#include "../include/cAudioSleep.h"
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#include "../Headers/cLogger.h"
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#include <set>
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#define LOAD_AL_FUNC(x) (x = (typeof(x))alGetProcAddress(#x))
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namespace cAudio
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{
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static bool RunAudioManagerThread(false);
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#ifdef CAUDIO_COMPILE_WITH_OGG_DECODER
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static cOggAudioDecoderFactory OggDecoderFactory;
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#endif
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#ifdef CAUDIO_COMPILE_WITH_WAV_DECODER
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static cWavAudioDecoderFactory WavDecoderFactory;
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#endif
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#ifdef CAUDIO_COMPILE_WITH_RAW_DECODER
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static cRawAudioDecoderFactory RawDecoderFactory;
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#endif
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//Note: OpenAL is threadsafe, so a mutex only needs to protect the class state
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#ifdef CAUDIO_USE_INTERNAL_THREAD
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static cAudioMutex AudioManagerObjectsMutex;
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static std::set<IAudioManager*> AudioManagerObjects;
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CAUDIO_DECLARE_THREAD_FUNCTION(AudioManagerUpdateThread)
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{
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while(RunAudioManagerThread)
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{
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AudioManagerObjectsMutex.lock();
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std::set<IAudioManager*>::iterator it;
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for ( it=AudioManagerObjects.begin() ; it != AudioManagerObjects.end(); it++ )
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{
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(*it)->update();
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}
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AudioManagerObjectsMutex.unlock();
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cAudioSleep(1);
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}
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return 0;
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}
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#endif
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//!Initialize the listener,openal,and mikmod
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bool cAudioManager::initialize(const char* deviceName, int outputFrequency, int eaxEffectSlots)
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{
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cAudioMutexBasicLock lock(Mutex);
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if(Initialized)
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return false;
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//Stores the context attributes (MAX of 4, with 2 zeros to terminate)
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ALint attribs[6] = { 0 };
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unsigned int currentAttrib = 0;
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if(outputFrequency > 0)
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{
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attribs[currentAttrib++] = ALC_FREQUENCY;
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attribs[currentAttrib++] = outputFrequency;
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}
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if(eaxEffectSlots > 0)
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{
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attribs[currentAttrib++] = ALC_MAX_AUXILIARY_SENDS;
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attribs[currentAttrib++] = eaxEffectSlots;
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}
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//Create a new device
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Device = alcOpenDevice(deviceName);
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//Check if device can be created
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if (Device == NULL)
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{
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getLogger()->logError("AudioManager", "Failed to Create OpenAL Device.");
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checkError();
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return false;
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}
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Context = alcCreateContext(Device, attribs);
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if (Context == NULL)
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{
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getLogger()->logError("AudioManager", "Failed to Create OpenAL Context.");
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checkError();
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alcCloseDevice(Device);
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Device = NULL;
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return false;
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}
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if(!alcMakeContextCurrent(Context))
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{
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getLogger()->logError("AudioManager", "Failed to make OpenAL Context current.");
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checkError();
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alcDestroyContext(Context);
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alcCloseDevice(Device);
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Context = NULL;
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Device = NULL;
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return false;
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}
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#ifdef CAUDIO_EFX_ENABLED
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initEffects.getEFXInterface()->Mutex.lock();
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EFXSupported = initEffects.getEFXInterface()->CheckEFXSupport(Device);
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initEffects.getEFXInterface()->Mutex.unlock();
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initEffects.checkEFXSupportDetails();
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#endif
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getLogger()->logInfo("AudioManager", "OpenAL Version: %s", alGetString(AL_VERSION));
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getLogger()->logInfo("AudioManager", "Vendor: %s", alGetString(AL_VENDOR));
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getLogger()->logInfo("AudioManager", "Renderer: %s", alGetString(AL_RENDERER));
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#ifdef CAUDIO_EFX_ENABLED
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if(EFXSupported)
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{
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int EFXMajorVersion = 0;
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int EFXMinorVersion = 0;
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alcGetIntegerv(Device, ALC_EFX_MAJOR_VERSION, 1, &EFXMajorVersion);
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alcGetIntegerv(Device, ALC_EFX_MINOR_VERSION, 1, &EFXMinorVersion);
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getLogger()->logInfo("AudioManager", "EFX Version: %i.%i", EFXMajorVersion, EFXMinorVersion);
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getLogger()->logInfo("AudioManager", "EFX supported and enabled.");
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}
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else
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{
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getLogger()->logWarning("AudioManager", "EFX is not supported, EFX disabled.");
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}
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#endif
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getLogger()->logInfo("AudioManager", "Supported Extensions: %s", alGetString(AL_EXTENSIONS));
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#ifdef CAUDIO_COMPILE_WITH_OGG_DECODER
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registerAudioDecoder(&OggDecoderFactory, "ogg");
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#endif
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#ifdef CAUDIO_COMPILE_WITH_WAV_DECODER
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registerAudioDecoder(&WavDecoderFactory, "wav");
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#endif
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#ifdef CAUDIO_COMPILE_WITH_RAW_DECODER
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registerAudioDecoder(&RawDecoderFactory, "raw");
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#endif
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Initialized = true;
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return true;
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}
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//!create a sound source
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IAudio* cAudioManager::createFromFile(const char* name, const char* pathToFile, bool stream)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string audioName = safeCStr(name);
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std::string path = safeCStr(pathToFile);
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std::string ext = getExt(path);
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IAudioDecoderFactory* factory = getAudioDecoderFactory(ext.c_str());
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if(factory)
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{
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if(stream)
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{
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cFileSource* source = new cFileSource(path);
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if(source)
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{
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if(source->isValid())
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{
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IAudioDecoder* decoder = factory->CreateAudioDecoder(source);
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source->drop();
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if(decoder)
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{
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if(decoder->isValid())
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{
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IAudio* audio = new cAudio(decoder, Context, initEffects.getEFXInterface());
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decoder->drop();
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if(audio)
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{
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if(audio->isValid())
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{
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if(!audioName.empty())
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audioIndex[audioName] = audio;
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audioSources.push_back(audio);
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getLogger()->logInfo("AudioManager", "Streaming Audio Source (%s) created from file %s.", audioName.c_str(), path.c_str());
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return audio;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Error creating audio source.", audioName.c_str());
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audio->drop();
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Audio data could not be decoded by (.%s) decoder.", audioName.c_str(), ext.c_str());
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decoder->drop();
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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source->drop();
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not load file %s.", audioName.c_str(), path.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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else
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{
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cFileSource* tempsource = new cFileSource(path);
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if(tempsource)
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{
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if(tempsource->isValid())
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{
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int length = tempsource->getSize();
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char *tempbuf = new char[length];
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if(tempbuf)
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{
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tempsource->read(tempbuf,length);
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IAudio* guy = createFromMemory(name, tempbuf, length, getExt(path).c_str());
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delete[]tempbuf;
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tempsource->drop();
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return guy;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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tempsource->drop();
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Audio data is corrupt.", audioName.c_str());
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tempsource->drop();
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Codec (.%s) is not supported.", audioName.c_str(), ext.c_str());
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return NULL;
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}
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//!Loads the ogg file from memory *virtual file systems*
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IAudio* cAudioManager::createFromMemory(const char* name, const char* data, size_t length, const char* extension)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string audioName = safeCStr(name);
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std::string ext = safeCStr(extension);
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IAudioDecoderFactory* factory = getAudioDecoderFactory(ext.c_str());
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if(factory)
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{
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cMemorySource* source = new cMemorySource(data, length, true);
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if(source)
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{
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if(source->isValid())
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{
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IAudioDecoder* decoder = factory->CreateAudioDecoder(source);
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source->drop();
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if(decoder)
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{
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if(decoder->isValid())
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{
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IAudio* audio = new cAudio(decoder, Context, initEffects.getEFXInterface());
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decoder->drop();
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if(audio)
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{
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if(audio->isValid())
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{
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if(!audioName.empty())
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audioIndex[audioName] = audio;
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audioSources.push_back(audio);
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getLogger()->logInfo("AudioManager", "Audio Source (%s) successfully created from memory.", audioName.c_str());
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return audio;
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}
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audio->drop();
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Error creating audio source.", audioName.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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decoder->drop();
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Audio data could not be decoded by (.%s) decoder.", audioName.c_str(), ext.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory for decoder.", audioName.c_str());
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return NULL;
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}
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source->drop();
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Audio data is corrupt.", audioName.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Codec (.%s) is not supported.", audioName.c_str(), ext.c_str());
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return NULL;
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}
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IAudio* cAudioManager::createFromRaw(const char* name, const char* data, size_t length, unsigned int frequency, AudioFormats format)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string audioName = safeCStr(name);
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IAudioDecoderFactory* factory = getAudioDecoderFactory("raw");
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if(factory)
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{
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cMemorySource* source = new cMemorySource(data, length, true);
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if(source)
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{
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if(source->isValid())
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{
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IAudioDecoder* decoder = ((cRawAudioDecoderFactory*)factory)->CreateAudioDecoder(source, frequency, format);
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source->drop();
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if(decoder)
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{
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if(decoder->isValid())
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{
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IAudio* audio = new cAudio(decoder, Context, initEffects.getEFXInterface());
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decoder->drop();
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if(audio)
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{
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if(audio->isValid())
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{
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if(!audioName.empty())
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audioIndex[audioName] = audio;
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audioSources.push_back(audio);
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getLogger()->logInfo("AudioManager", "Audio Source (%s) successfully created from raw data.", audioName.c_str());
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return audio;
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}
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audio->drop();
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Error creating audio source.", audioName.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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decoder->drop();
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Audio data could not be decoded by (.%s) decoder.", audioName.c_str(), "raw");
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory for decoder.", audioName.c_str());
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return NULL;
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}
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source->drop();
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Audio data is corrupt.", audioName.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Could not allocate enough memory.", audioName.c_str());
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return NULL;
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}
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getLogger()->logError("AudioManager", "Failed to create Audio Source (%s): Codec (.%s) is not supported.", audioName.c_str(), "raw");
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return NULL;
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}
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bool cAudioManager::registerAudioDecoder(IAudioDecoderFactory* factory, const char* extension)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string ext = safeCStr(extension);
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decodermap[ext] = factory;
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getLogger()->logInfo("AudioManager", "Audio Decoder for extension .%s registered.", ext.c_str());
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return true;
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}
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void cAudioManager::unRegisterAudioDecoder(const char* extension)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string ext = safeCStr(extension);
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std::map<std::string, IAudioDecoderFactory*>::iterator it = decodermap.find(ext);
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if(it != decodermap.end())
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{
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decodermap.erase(it);
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getLogger()->logInfo("AudioManager", "Audio Decoder for extension .%s unregistered.", ext.c_str());
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}
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}
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bool cAudioManager::isAudioDecoderRegistered(const char* extension)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string ext = safeCStr(extension);
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std::map<std::string, IAudioDecoderFactory*>::iterator it = decodermap.find(ext);
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return (it != decodermap.end());
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}
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IAudioDecoderFactory* cAudioManager::getAudioDecoderFactory(const char* extension)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string ext = safeCStr(extension);
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std::map<std::string, IAudioDecoderFactory*>::iterator it = decodermap.find(ext);
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if(it != decodermap.end())
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{
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return it->second;
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}
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return NULL;
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}
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//!grabs the selected audio file via the identifier
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IAudio* cAudioManager::getSoundByName(const char* name)
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{
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cAudioMutexBasicLock lock(Mutex);
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std::string audioName = safeCStr(name);
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std::map<std::string,IAudio*>::iterator i = audioIndex.find(audioName);
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if (i == audioIndex.end())
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{
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return NULL;
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}
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return i->second;
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}
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//!Releases the selected audio source
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void cAudioManager::release()
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{
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cAudioMutexBasicLock lock(Mutex);
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for(unsigned int i=0; i<audioSources.size(); ++i)
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{
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IAudio* source = audioSources[i];
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if(source)
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source->drop();
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}
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audioSources.clear();
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audioIndex.clear();
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}
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//!Updates all audiosources created
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void cAudioManager::update()
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{
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cAudioMutexBasicLock lock(Mutex);
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for(unsigned int i=0; i<audioSources.size(); ++i)
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{
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IAudio* source = audioSources[i];
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if (source->isValid())
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{
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if (source->update())
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{
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}
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}
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}
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}
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//!Shuts down cAudio. Deletes all audio sources in process
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void cAudioManager::shutDown()
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{
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if(Initialized)
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{
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cAudioMutexBasicLock lock(Mutex);
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release();
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decodermap.clear();
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//Reset context to null
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alcMakeContextCurrent(NULL);
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//Delete the context
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alcDestroyContext(Context);
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Context = NULL;
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//Close the device
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alcCloseDevice(Device);
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Device = NULL;
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Initialized = false;
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getLogger()->logInfo("AudioManager", "Manager successfully shutdown.");
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}
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}
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bool cAudioManager::checkError()
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{
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int error = alGetError();
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const char* errorString;
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if (error != AL_NO_ERROR)
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{
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errorString = alGetString(error);
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getLogger()->logError("AudioManager", "OpenAL Error: %s.", errorString);
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return true;
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}
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if(Device)
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{
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error = alcGetError(Device);
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if (error != AL_NO_ERROR)
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{
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errorString = alGetString(error);
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getLogger()->logError("AudioManager", "OpenAL Error: %s.", errorString);
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return true;
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}
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}
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return false;
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}
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void cAudioManager::getAvailableDevices()
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{
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// Get list of available Playback Devices
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cAudioMutexBasicLock lock(Mutex);
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if( alcIsExtensionPresent(NULL, "ALC_ENUMERATE_ALL_EXT") == AL_TRUE )
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{
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const char* deviceList = alcGetString(NULL, ALC_ALL_DEVICES_SPECIFIER);
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if (deviceList)
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{
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while(*deviceList)
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{
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std::string device(deviceList);
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AvailableDevices.push_back(device);
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deviceList += strlen(deviceList) + 1;
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}
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}
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// Get the name of the 'default' capture device
|
|
DefaultDevice = alcGetString(NULL, ALC_DEFAULT_ALL_DEVICES_SPECIFIER);
|
|
}
|
|
else if( alcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT") == AL_TRUE )
|
|
{
|
|
const char* deviceList = alcGetString(NULL, ALC_DEVICE_SPECIFIER);
|
|
if (deviceList)
|
|
{
|
|
while(*deviceList)
|
|
{
|
|
std::string device(deviceList);
|
|
AvailableDevices.push_back(device);
|
|
deviceList += strlen(deviceList) + 1;
|
|
}
|
|
}
|
|
|
|
// Get the name of the 'default' capture device
|
|
DefaultDevice = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
|
|
}
|
|
}
|
|
|
|
const char* cAudioManager::getAvailableDeviceName(unsigned int index)
|
|
{
|
|
cAudioMutexBasicLock lock(Mutex);
|
|
if(!AvailableDevices.empty())
|
|
{
|
|
//Bounds check
|
|
if( index > (AvailableDevices.size()-1) ) index = (AvailableDevices.size()-1);
|
|
const char* deviceName = AvailableDevices[index].c_str();
|
|
return deviceName;
|
|
}
|
|
return "";
|
|
}
|
|
|
|
unsigned int cAudioManager::getAvailableDeviceCount()
|
|
{
|
|
cAudioMutexBasicLock lock(Mutex);
|
|
return AvailableDevices.size();
|
|
}
|
|
|
|
const char* cAudioManager::getDefaultDeviceName()
|
|
{
|
|
cAudioMutexBasicLock lock(Mutex);
|
|
return DefaultDevice.empty() ? "" : DefaultDevice.c_str();
|
|
}
|
|
|
|
CAUDIO_API IAudioManager* createAudioManager(bool initializeDefault)
|
|
{
|
|
cAudioManager* manager = new cAudioManager;
|
|
if(manager)
|
|
{
|
|
if(initializeDefault)
|
|
manager->initialize();
|
|
|
|
manager->getAvailableDevices();
|
|
|
|
#ifdef CAUDIO_USE_INTERNAL_THREAD
|
|
AudioManagerObjectsMutex.lock();
|
|
AudioManagerObjects.insert(manager);
|
|
|
|
//First time launch of thread
|
|
if(!RunAudioManagerThread && AudioManagerObjects.size() > 0)
|
|
RunAudioManagerThread = (cAudioThread::SpawnThread(AudioManagerUpdateThread, NULL) == 0);
|
|
AudioManagerObjectsMutex.unlock();
|
|
#endif
|
|
}
|
|
return manager;
|
|
}
|
|
|
|
CAUDIO_API void destroyAudioManager(IAudioManager* manager)
|
|
{
|
|
if(manager)
|
|
{
|
|
#ifdef CAUDIO_USE_INTERNAL_THREAD
|
|
AudioManagerObjectsMutex.lock();
|
|
AudioManagerObjects.erase(manager);
|
|
|
|
//Kill the thread if there are no objects to process anymore
|
|
if(RunAudioManagerThread && AudioManagerObjects.empty())
|
|
RunAudioManagerThread = false;
|
|
AudioManagerObjectsMutex.unlock();
|
|
#endif
|
|
manager->shutDown();
|
|
delete manager;
|
|
manager = NULL;
|
|
}
|
|
}
|
|
|
|
CAUDIO_API bool isAudioManagerThreadRunning()
|
|
{
|
|
return RunAudioManagerThread;
|
|
}
|
|
|
|
};
|