Tune caves
[oweals/minetest.git] / src / sound_openal.cpp
index 9566f95c2c5b2167cc5bed71974ce772a51fd8bb..8d76b69e16621105b6fdb0cbb8048fa1e8721589 100644 (file)
@@ -23,10 +23,10 @@ with this program; ifnot, write to the Free Software Foundation, Inc.,
 
 #include "sound_openal.h"
 
-#if defined(_MSC_VER)
+#if defined(_WIN32)
        #include <al.h>
        #include <alc.h>
-       #include <alext.h>
+       //#include <alext.h>
 #elif defined(__APPLE__)
        #include <OpenAL/al.h>
        #include <OpenAL/alc.h>
@@ -41,6 +41,7 @@ with this program; ifnot, write to the Free Software Foundation, Inc.,
 #include <map>
 #include <vector>
 #include "utility.h" // myrand()
+#include "filesys.h"
 
 #define BUFFER_SIZE 30000
 
@@ -84,6 +85,14 @@ static const char *alErrorString(ALenum err)
        }
 }
 
+static ALenum warn_if_error(ALenum err, const char *desc)
+{
+       if(err == AL_NO_ERROR)
+               return err;
+       errorstream<<"WARNING: "<<desc<<": "<<alErrorString(err)<<std::endl;
+       return err;
+}
+
 void f3_set(ALfloat *f3, v3f v)
 {
        f3[0] = v.X;
@@ -93,9 +102,9 @@ void f3_set(ALfloat *f3, v3f v)
 
 struct SoundBuffer
 {
-       ALenum  format;
-       ALsizei freq;
-       ALuint  bufferID;
+       ALenum format;
+       ALsizei freq;
+       ALuint buffer_id;
        std::vector<char> buffer;
 };
 
@@ -107,9 +116,14 @@ SoundBuffer* loadOggFile(const std::string &filepath)
        char array[BUFFER_SIZE]; // Local fixed size array
        vorbis_info *pInfo;
        OggVorbis_File oggFile;
-
+       
+       // Do a dumb-ass static string copy for old versions of ov_fopen
+       // because they expect a non-const char*
+       char nonconst[10000];
+       snprintf(nonconst, 10000, "%s", filepath.c_str());
        // Try opening the given file
-       if(ov_fopen(filepath.c_str(), &oggFile) != 0)
+       //if(ov_fopen(filepath.c_str(), &oggFile) != 0)
+       if(ov_fopen(nonconst, &oggFile) != 0)
        {
                infostream<<"Audio: Error opening "<<filepath<<" for decoding"<<std::endl;
                return NULL;
@@ -146,8 +160,8 @@ SoundBuffer* loadOggFile(const std::string &filepath)
                snd->buffer.insert(snd->buffer.end(), array, array + bytes);
        } while (bytes > 0);
 
-       alGenBuffers(1, &snd->bufferID);
-       alBufferData(snd->bufferID, snd->format,
+       alGenBuffers(1, &snd->buffer_id);
+       alBufferData(snd->buffer_id, snd->format,
                        &(snd->buffer[0]), snd->buffer.size(),
                        snd->freq);
 
@@ -168,19 +182,24 @@ SoundBuffer* loadOggFile(const std::string &filepath)
 
 struct PlayingSound
 {
+       ALuint source_id;
+       bool loop;
 };
 
 class OpenALSoundManager: public ISoundManager
 {
 private:
+       OnDemandSoundFetcher *m_fetcher;
        ALCdevice *m_device;
        ALCcontext *m_context;
        bool m_can_vorbis;
        int m_next_id;
        std::map<std::string, std::vector<SoundBuffer*> > m_buffers;
        std::map<int, PlayingSound*> m_sounds_playing;
+       v3f m_listener_pos;
 public:
-       OpenALSoundManager():
+       OpenALSoundManager(OnDemandSoundFetcher *fetcher):
+               m_fetcher(fetcher),
                m_device(NULL),
                m_context(NULL),
                m_can_vorbis(false),
@@ -258,6 +277,7 @@ public:
                }
                std::vector<SoundBuffer*> bufs;
                bufs.push_back(buf);
+               m_buffers[name] = bufs;
                return;
        }
 
@@ -272,19 +292,144 @@ public:
                return bufs[j];
        }
 
-       void updateListener(v3f pos, v3f vel, v3f at, v3f up)
+       PlayingSound* createPlayingSound(SoundBuffer *buf, bool loop,
+                       float volume)
        {
-               ALfloat f[6];
-               f3_set(f, pos);
-               alListenerfv(AL_POSITION, f);
-               f3_set(f, vel);
-               alListenerfv(AL_VELOCITY, f);
-               f3_set(f, at);
-               f3_set(f+3, up);
-               alListenerfv(AL_ORIENTATION, f);
+               infostream<<"OpenALSoundManager: Creating playing sound"<<std::endl;
+               assert(buf);
+               PlayingSound *sound = new PlayingSound;
+               assert(sound);
+               warn_if_error(alGetError(), "before createPlayingSound");
+               alGenSources(1, &sound->source_id);
+               alSourcei(sound->source_id, AL_BUFFER, buf->buffer_id);
+               alSourcei(sound->source_id, AL_SOURCE_RELATIVE, true);
+               alSource3f(sound->source_id, AL_POSITION, 0, 0, 0);
+               alSource3f(sound->source_id, AL_VELOCITY, 0, 0, 0);
+               alSourcei(sound->source_id, AL_LOOPING, loop ? AL_TRUE : AL_FALSE);
+               volume = MYMAX(0.0, volume);
+               alSourcef(sound->source_id, AL_GAIN, volume);
+               alSourcePlay(sound->source_id);
+               warn_if_error(alGetError(), "createPlayingSound");
+               return sound;
+       }
+
+       PlayingSound* createPlayingSoundAt(SoundBuffer *buf, bool loop,
+                       float volume, v3f pos)
+       {
+               infostream<<"OpenALSoundManager: Creating positional playing sound"
+                               <<std::endl;
+               assert(buf);
+               PlayingSound *sound = new PlayingSound;
+               assert(sound);
+               warn_if_error(alGetError(), "before createPlayingSoundAt");
+               alGenSources(1, &sound->source_id);
+               alSourcei(sound->source_id, AL_BUFFER, buf->buffer_id);
+               alSourcei(sound->source_id, AL_SOURCE_RELATIVE, false);
+               alSource3f(sound->source_id, AL_POSITION, pos.X, pos.Y, pos.Z);
+               alSource3f(sound->source_id, AL_VELOCITY, 0, 0, 0);
+               //alSourcef(sound->source_id, AL_ROLLOFF_FACTOR, 0.7);
+               alSourcef(sound->source_id, AL_REFERENCE_DISTANCE, 30.0);
+               alSourcei(sound->source_id, AL_LOOPING, loop ? AL_TRUE : AL_FALSE);
+               volume = MYMAX(0.0, volume);
+               alSourcef(sound->source_id, AL_GAIN, volume);
+               alSourcePlay(sound->source_id);
+               warn_if_error(alGetError(), "createPlayingSoundAt");
+               return sound;
+       }
+
+       int playSoundRaw(SoundBuffer *buf, bool loop, float volume)
+       {
+               assert(buf);
+               PlayingSound *sound = createPlayingSound(buf, loop, volume);
+               if(!sound)
+                       return -1;
+               int id = m_next_id++;
+               m_sounds_playing[id] = sound;
+               return id;
+       }
+
+       int playSoundRawAt(SoundBuffer *buf, bool loop, float volume, v3f pos)
+       {
+               assert(buf);
+               PlayingSound *sound = createPlayingSoundAt(buf, loop, volume, pos);
+               if(!sound)
+                       return -1;
+               int id = m_next_id++;
+               m_sounds_playing[id] = sound;
+               return id;
+       }
+       
+       void deleteSound(int id)
+       {
+               std::map<int, PlayingSound*>::iterator i =
+                               m_sounds_playing.find(id);
+               if(i == m_sounds_playing.end())
+                       return;
+               PlayingSound *sound = i->second;
+               
+               alDeleteSources(1, &sound->source_id);
+
+               delete sound;
+               m_sounds_playing.erase(id);
+       }
+
+       /* If buffer does not exist, consult the fetcher */
+       SoundBuffer* getFetchBuffer(const std::string name)
+       {
+               SoundBuffer *buf = getBuffer(name);
+               if(buf)
+                       return buf;
+               if(!m_fetcher)
+                       return NULL;
+               std::set<std::string> paths;
+               std::set<std::string> datas;
+               m_fetcher->fetchSounds(name, paths, datas);
+               for(std::set<std::string>::iterator i = paths.begin();
+                               i != paths.end(); i++){
+                       loadSoundFile(name, *i);
+               }
+               for(std::set<std::string>::iterator i = datas.begin();
+                               i != datas.end(); i++){
+                       loadSoundData(name, *i);
+               }
+               return getBuffer(name);
        }
        
-       bool loadSound(const std::string &name,
+       // Remove stopped sounds
+       void maintain()
+       {
+               verbosestream<<"OpenALSoundManager::maintain(): "
+                               <<m_sounds_playing.size()<<" playing sounds, "
+                               <<m_buffers.size()<<" sound names loaded"<<std::endl;
+               std::set<int> del_list;
+               for(std::map<int, PlayingSound*>::iterator
+                               i = m_sounds_playing.begin();
+                               i != m_sounds_playing.end(); i++)
+               {
+                       int id = i->first;
+                       PlayingSound *sound = i->second;
+                       // If not playing, remove it
+                       {
+                               ALint state;
+                               alGetSourcei(sound->source_id, AL_SOURCE_STATE, &state);
+                               if(state != AL_PLAYING){
+                                       del_list.insert(id);
+                               }
+                       }
+               }
+               if(del_list.size() != 0)
+                       verbosestream<<"OpenALSoundManager::maintain(): deleting "
+                                       <<del_list.size()<<" playing sounds"<<std::endl;
+               for(std::set<int>::iterator i = del_list.begin();
+                               i != del_list.end(); i++)
+               {
+                       deleteSound(*i);
+               }
+       }
+
+       /* Interface */
+
+       bool loadSoundFile(const std::string &name,
                        const std::string &filepath)
        {
                SoundBuffer *buf = loadOggFile(filepath);
@@ -292,31 +437,88 @@ public:
                        addBuffer(name, buf);
                return false;
        }
-       bool loadSound(const std::string &name,
-                       const std::vector<char> &filedata)
+       bool loadSoundData(const std::string &name,
+                       const std::string &filedata)
        {
-               errorstream<<"OpenALSoundManager: Loading from filedata not"
-                               " implemented"<<std::endl;
-               return false;
+               // The vorbis API sucks; just write it to a file and use vorbisfile
+               // TODO: Actually load it directly from memory
+               std::string basepath = porting::path_user + DIR_DELIM + "cache" +
+                               DIR_DELIM + "tmp";
+               std::string path = basepath + DIR_DELIM + "tmp.ogg";
+               verbosestream<<"OpenALSoundManager::loadSoundData(): Writing "
+                               <<"temporary file to ["<<path<<"]"<<std::endl;
+               fs::CreateAllDirs(basepath);
+               std::ofstream of(path.c_str(), std::ios::binary);
+               of.write(filedata.c_str(), filedata.size());
+               of.close();
+               return loadSoundFile(name, path);
        }
 
-       int playSound(const std::string &name, int loopcount,
-                       float volume)
+       void updateListener(v3f pos, v3f vel, v3f at, v3f up)
        {
-               return -1;
+               m_listener_pos = pos;
+               alListener3f(AL_POSITION, pos.X, pos.Y, pos.Z);
+               alListener3f(AL_VELOCITY, vel.X, vel.Y, vel.Z);
+               ALfloat f[6];
+               f3_set(f, at);
+               f3_set(f+3, up);
+               alListenerfv(AL_ORIENTATION, f);
+               warn_if_error(alGetError(), "updateListener");
        }
-       int playSoundAt(const std::string &name, int loopcount,
-                       v3f pos, float volume)
+
+       int playSound(const std::string &name, bool loop, float volume)
        {
-               return -1;
+               maintain();
+               if(name == "")
+                       return 0;
+               SoundBuffer *buf = getFetchBuffer(name);
+               if(!buf){
+                       infostream<<"OpenALSoundManager: \""<<name<<"\" not found."
+                                       <<std::endl;
+                       return -1;
+               }
+               return playSoundRaw(buf, loop, volume);
+       }
+       int playSoundAt(const std::string &name, bool loop, float volume, v3f pos)
+       {
+               maintain();
+               if(name == "")
+                       return 0;
+               SoundBuffer *buf = getFetchBuffer(name);
+               if(!buf){
+                       infostream<<"OpenALSoundManager: \""<<name<<"\" not found."
+                                       <<std::endl;
+                       return -1;
+               }
+               return playSoundRawAt(buf, loop, volume, pos);
        }
        void stopSound(int sound)
        {
+               maintain();
+               deleteSound(sound);
+       }
+       bool soundExists(int sound)
+       {
+               maintain();
+               return (m_sounds_playing.count(sound) != 0);
+       }
+       void updateSoundPosition(int id, v3f pos)
+       {
+               std::map<int, PlayingSound*>::iterator i =
+                               m_sounds_playing.find(id);
+               if(i == m_sounds_playing.end())
+                       return;
+               PlayingSound *sound = i->second;
+
+               alSourcei(sound->source_id, AL_SOURCE_RELATIVE, false);
+               alSource3f(sound->source_id, AL_POSITION, pos.X, pos.Y, pos.Z);
+               alSource3f(sound->source_id, AL_VELOCITY, 0, 0, 0);
+               alSourcef(sound->source_id, AL_REFERENCE_DISTANCE, 30.0);
        }
 };
 
-ISoundManager *createSoundManager()
+ISoundManager *createOpenALSoundManager(OnDemandSoundFetcher *fetcher)
 {
-       return new OpenALSoundManager();
+       return new OpenALSoundManager(fetcher);
 };