diff options
Diffstat (limited to 'src/sound/oalsound/alsound.cpp')
-rw-r--r-- | src/sound/oalsound/alsound.cpp | 540 |
1 files changed, 540 insertions, 0 deletions
diff --git a/src/sound/oalsound/alsound.cpp b/src/sound/oalsound/alsound.cpp new file mode 100644 index 0000000..83a4def --- /dev/null +++ b/src/sound/oalsound/alsound.cpp @@ -0,0 +1,540 @@ +// * This file is part of the COLOBOT source code +// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch +// * Copyright (C) 2012 Polish Portal of Colobot (PPC) +// * +// * 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 3 of the License, or +// * (at your option) any later version. +// * +// * 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, see http://www.gnu.org/licenses/. + +// alsound.cpp + + +#include "alsound.h" + + +#define MIN(a, b) (a > b ? b : a) + + +PLUGIN_INTERFACE(ALSound) + + +std::string ALSound::PluginName() +{ + return "Sound plugin using OpenAL library to play sounds."; +} + + +int ALSound::PluginVersion() +{ + return 2; +} + + +void ALSound::InstallPlugin() +{ + auto pointer = CInstanceManager::GetInstancePointer(); + if (pointer != nullptr) + CInstanceManager::GetInstancePointer()->AddInstance(CLASS_SOUND, this); +} + + +bool ALSound::UninstallPlugin(std::string &reason) +{ + auto pointer = CInstanceManager::GetInstancePointer(); + if (pointer != nullptr) + CInstanceManager::GetInstancePointer()->DeleteInstance(CLASS_SOUND, this); + CleanUp(); + return true; +} + + +ALSound::ALSound() +{ + mEnabled = false; + m3D = false; + mAudioVolume = MAXVOLUME; + mMute = false; +} + + +ALSound::~ALSound() +{ + CleanUp(); +} + + +void ALSound::CleanUp() +{ + if (mEnabled) { + GetLogger()->Info("Unloading files and closing device...\n"); + StopAll(); + + for (auto item : mSounds) + delete item.second; + + mEnabled = false; + alutExit(); + } +} + + +bool ALSound::Create(bool b3D) +{ + CleanUp(); + + if (mEnabled) + return true; + + GetLogger()->Info("Opening audio device...\n"); + if (!alutInit(NULL, NULL)) { + ALenum error = alutGetError(); + GetLogger()->Error("Could not open audio device! Reason: %s\n", alutGetErrorString(error)); + return false; + } + GetLogger()->Info("Done.\n"); + + mEnabled = true; + return true; +} + + +void ALSound::SetSound3D(bool bMode) +{ + // TODO stub! need to be implemented + m3D = bMode; +} + + +bool ALSound::RetSound3D() +{ + // TODO stub! need to be implemented + return true; +} + + +bool ALSound::RetSound3DCap() +{ + // TODO stub! need to be implemented + return true; +} + + +bool ALSound::RetEnable() +{ + return mEnabled; +} + + +void ALSound::SetAudioVolume(int volume) +{ + alListenerf(AL_GAIN, MIN(volume, MAXVOLUME) * 0.01f); + mAudioVolume = MIN(volume, MAXVOLUME); +} + + +int ALSound::RetAudioVolume() +{ + float volume; + if ( !mEnabled ) + return 0; + + alGetListenerf(AL_GAIN, &volume); + return volume * MAXVOLUME; +} + + +void ALSound::SetMusicVolume(int volume) +{ + // TODO stub! Add music support +} + + +int ALSound::RetMusicVolume() +{ + // TODO stub! Add music support + if ( !mEnabled ) + return 0; + + return 0; +} + + +bool ALSound::Cache(Sound sound, std::string filename) +{ + Buffer *buffer = new Buffer(); + if (buffer->LoadFromFile(filename, sound)) { + mSounds[sound] = buffer; + return true; + } + return false; +} + + +int ALSound::RetPriority(Sound sound) +{ + if ( sound == SOUND_FLYh || + sound == SOUND_FLY || + sound == SOUND_MOTORw || + sound == SOUND_MOTORt || + sound == SOUND_MOTORr || + sound == SOUND_MOTORs || + sound == SOUND_SLIDE || + sound == SOUND_ERROR ) + { + return 30; + } + + if ( sound == SOUND_CONVERT || + sound == SOUND_ENERGY || + sound == SOUND_DERRICK || + sound == SOUND_STATION || + sound == SOUND_REPAIR || + sound == SOUND_RESEARCH || + sound == SOUND_BURN || + sound == SOUND_BUILD || + sound == SOUND_TREMBLE || + sound == SOUND_NUCLEAR || + sound == SOUND_EXPLO || + sound == SOUND_EXPLOl || + sound == SOUND_EXPLOlp || + sound == SOUND_EXPLOp || + sound == SOUND_EXPLOi ) + { + return 20; + } + + if ( sound == SOUND_BLUP || + sound == SOUND_INSECTs || + sound == SOUND_INSECTa || + sound == SOUND_INSECTb || + sound == SOUND_INSECTw || + sound == SOUND_INSECTm || + sound == SOUND_PSHHH || + sound == SOUND_EGG ) + { + return 0; + } + + return 10; +} + + +bool ALSound::SearchFreeBuffer(Sound sound, int &channel, bool &bAlreadyLoaded) +{ + int priority = RetPriority(sound); + + // Seeks a channel used which sound is stopped. + for (auto it : mChannels) { + if (it.second->IsPlaying()) + continue; + if (it.second->GetSoundType() != sound) + continue; + + it.second->SetPriority(priority); + channel = it.first; + bAlreadyLoaded = true; + return true; + } + + // just add a new channel if we dont have any + if (mChannels.size() == 0) { + Channel *chn = new Channel(); + // check if we channel ready to play music, if not report error + if (chn->IsReady()) { + chn->SetPriority(priority); + mChannels[1] = chn; + channel = 1; + bAlreadyLoaded = false; + return true; + } + delete chn; + GetLogger()->Error("Could not open channel to play sound!"); + return false; + } + + // Seeks a channel completely free. + if (mChannels.size() < 64) { + auto it = mChannels.end(); + it--; + int i = (*it).first; + while (++i) + { + if (mChannels.find(i) == mChannels.end()) { + Channel *chn = new Channel(); + // check if channel is ready to play music, if not destroy it and seek free one + if (chn->IsReady()) { + chn->SetPriority(priority); + mChannels[++i] = chn; + channel = i; + bAlreadyLoaded = false; + return true; + } + delete chn; + GetLogger()->Warn("Could not open additional channel to play sound!"); + } + } + } + + int lowerOrEqual = -1; + for (auto it : mChannels) { + if (it.second->GetPriority() < priority) { + GetLogger()->Info("Sound channel with lower priority will be reused."); + channel = it.first; + return true; + } + if (it.second->GetPriority() <= priority) + lowerOrEqual = it.first; + } + + if (lowerOrEqual != -1) { + channel = lowerOrEqual; + GetLogger()->Info("Sound channel with lower or equal priority will be reused."); + return true; + } + + GetLogger()->Warn("Could not find free buffer to use.\n"); + return false; +} + + +int ALSound::Play(Sound sound, float amplitude, float frequency, bool bLoop) +{ + return Play(sound, Math::Vector(), amplitude, frequency, bLoop); +} + + +int ALSound::Play(Sound sound, Math::Vector pos, float amplitude, float frequency, bool bLoop) +{ + if (!mEnabled) + return -1; + + if (mAudioVolume <= 0.0f) + return -1; + + if (mSounds.find(sound) == mSounds.end()) { + GetLogger()->Warn("Sound %d was not loaded!\n", sound); + return -1; + } + + int channel; + bool bAlreadyLoaded; + if (!SearchFreeBuffer(sound, channel, bAlreadyLoaded)) + return -1; + if ( !bAlreadyLoaded ) { + mChannels[channel]->SetBuffer(mSounds[sound]); + } + + Position(channel, pos); + + // setting initial values + mChannels[channel]->SetStartAmplitude(amplitude); + mChannels[channel]->SetStartFrequency(frequency); + mChannels[channel]->SetChangeFrequency(1.0f); + mChannels[channel]->ResetOper(); + mChannels[channel]->AdjustFrequency(frequency); + mChannels[channel]->AdjustVolume(mAudioVolume); + mChannels[channel]->Play(); + return channel; +} + + +bool ALSound::FlushEnvelope(int channel) +{ + if (mChannels.find(channel) == mChannels.end()) { + return false; + } + + mChannels[channel]->ResetOper(); + return true; +} + + +bool ALSound::AddEnvelope(int channel, float amplitude, float frequency, float time, SoundNext oper) +{ + if (!mEnabled) + return false; + + if (mChannels.find(channel) == mChannels.end()) { + return false; + } + + SoundOper op; + op.finalAmplitude = amplitude; + op.finalFrequency = frequency; + op.totalTime = time; + op.nextOper = oper; + mChannels[channel]->AddOper(op); + + return false; +} + + +bool ALSound::Position(int channel, Math::Vector pos) +{ + if (!mEnabled) + return false; + + if (mChannels.find(channel) == mChannels.end()) { + return false; + } + + mChannels[channel]->SetPosition(pos); + return true; +} + + +bool ALSound::Frequency(int channel, float frequency) +{ + if (!mEnabled) + return false; + + if (mChannels.find(channel) == mChannels.end()) { + return false; + } + + mChannels[channel]->SetFrequency(frequency); + return true; +} + +bool ALSound::Stop(int channel) +{ + if (!mEnabled) + return false; + + if (mChannels.find(channel) == mChannels.end()) { + return false; + } + + mChannels[channel]->Stop(); + mChannels[channel]->ResetOper(); + + return true; +} + + +bool ALSound::StopAll() +{ + if (!mEnabled) + return false; + + for (auto channel : mChannels) { + channel.second->Stop(); + channel.second->ResetOper(); + } + + return true; +} + + +bool ALSound::MuteAll(bool bMute) +{ + if (!mEnabled) + return false; + + float volume; + mMute = bMute; + if (mMute) + volume = 0; + else + volume = mAudioVolume; + + for (auto channel : mChannels) { + channel.second->SetVolume(volume); + } + + return true; +} + + +void ALSound::FrameMove(float delta) +{ + if (!mEnabled) + return; + + float progress; + float volume, frequency; + for (auto it : mChannels) { + if (!it.second->IsPlaying()) + continue; + + if (!it.second->HasEnvelope()) + continue; + + //it.second->GetEnvelope().currentTime += delta; + SoundOper oper = it.second->GetEnvelope(); + progress = it.second->GetCurrentTime() / oper.totalTime; + progress = MIN(progress, 1.0f); + + // setting volume + volume = progress * abs(oper.finalAmplitude - it.second->GetStartAmplitude()); + it.second->AdjustVolume(volume * mAudioVolume); + + // setting frequency + frequency = progress * (oper.finalFrequency - it.second->GetStartFrequency()) * it.second->GetStartFrequency() * it.second->GetChangeFrequency(); + it.second->AdjustFrequency(frequency); + + if (it.second->GetEnvelope().totalTime <= it.second->GetCurrentTime()) { + + if (oper.nextOper == SOPER_LOOP) { + GetLogger()->Info("Replay.\n"); + it.second->SetCurrentTime(0.0f); + it.second->Play(); + } else { + GetLogger()->Info("Next.\n"); + it.second->SetStartAmplitude(oper.finalAmplitude); + it.second->SetStartFrequency(oper.finalFrequency); + it.second->PopEnvelope(); + } + } + } +} + + +void ALSound::SetListener(Math::Vector eye, Math::Vector lookat) +{ + float orientation[] = {lookat.x, lookat.y, lookat.z, 0.f, 1.f, 0.f}; + alListener3f(AL_POSITION, eye.x, eye.y, eye.z); + alListenerfv(AL_ORIENTATION, orientation); +} + + +bool ALSound::PlayMusic(int rank, bool bRepeat) +{ + // TODO stub! Add music support + return true; +} + + +bool ALSound::RestartMusic() +{ + // TODO stub! Add music support + return true; +} + +void ALSound::StopMusic() +{ + // TODO stub! Add music support + SuspendMusic(); +} + + +bool ALSound::IsPlayingMusic() +{ + // TODO stub! Add music support + return true; +} + + +void ALSound::SuspendMusic() +{ + // TODO stub! Add music support +} |