diff options
Diffstat (limited to 'src/sound_openal.cpp')
| -rw-r--r-- | src/sound_openal.cpp | 147 |
1 files changed, 107 insertions, 40 deletions
diff --git a/src/sound_openal.cpp b/src/sound_openal.cpp index df316fbf0..ca1023413 100644 --- a/src/sound_openal.cpp +++ b/src/sound_openal.cpp @@ -111,31 +111,19 @@ struct SoundBuffer std::vector<char> buffer; }; -SoundBuffer* loadOggFile(const std::string &filepath) +SoundBuffer *load_opened_ogg_file(OggVorbis_File *oggFile, + const std::string &filename_for_logging) { int endian = 0; // 0 for Little-Endian, 1 for Big-Endian int bitStream; long bytes; 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(nonconst, &oggFile) != 0) - { - infostream<<"Audio: Error opening "<<filepath<<" for decoding"<<std::endl; - return NULL; - } SoundBuffer *snd = new SoundBuffer; // Get some information about the OGG file - pInfo = ov_info(&oggFile, -1); + pInfo = ov_info(oggFile, -1); // Check the number of channels... always use 16-bit samples if(pInfo->channels == 1) @@ -150,12 +138,13 @@ SoundBuffer* loadOggFile(const std::string &filepath) do { // Read up to a buffer's worth of decoded sound data - bytes = ov_read(&oggFile, array, BUFFER_SIZE, endian, 2, 1, &bitStream); + bytes = ov_read(oggFile, array, BUFFER_SIZE, endian, 2, 1, &bitStream); if(bytes < 0) { - ov_clear(&oggFile); - infostream<<"Audio: Error decoding "<<filepath<<std::endl; + ov_clear(oggFile); + infostream << "Audio: Error decoding " + << filename_for_logging << std::endl; return NULL; } @@ -175,14 +164,100 @@ SoundBuffer* loadOggFile(const std::string &filepath) <<"preparing sound buffer"<<std::endl; } - infostream<<"Audio file "<<filepath<<" loaded"<<std::endl; + infostream << "Audio file " + << filename_for_logging << " loaded" << std::endl; // Clean up! - ov_clear(&oggFile); + ov_clear(oggFile); return snd; } +SoundBuffer *load_ogg_from_file(const std::string &path) +{ + OggVorbis_File oggFile; + + // Try opening the given file. + // This requires libvorbis >= 1.3.2, as + // previous versions expect a non-const char * + if (ov_fopen(path.c_str(), &oggFile) != 0) { + infostream << "Audio: Error opening " << path + << " for decoding" << std::endl; + return NULL; + } + + return load_opened_ogg_file(&oggFile, path); +} + +struct BufferSource { + const char *buf; + size_t cur_offset; + size_t len; +}; + +size_t buffer_sound_read_func(void *ptr, size_t size, size_t nmemb, void *datasource) +{ + BufferSource *s = (BufferSource *)datasource; + size_t copied_size = MYMIN(s->len - s->cur_offset, size); + memcpy(ptr, s->buf + s->cur_offset, copied_size); + s->cur_offset += copied_size; + return copied_size; +} + +int buffer_sound_seek_func(void *datasource, ogg_int64_t offset, int whence) +{ + BufferSource *s = (BufferSource *)datasource; + if (whence == SEEK_SET) { + if (offset < 0 || (size_t)MYMAX(offset, 0) >= s->len) { + // offset out of bounds + return -1; + } + s->cur_offset = offset; + return 0; + } else if (whence == SEEK_CUR) { + if ((size_t)MYMIN(-offset, 0) > s->cur_offset + || s->cur_offset + offset > s->len) { + // offset out of bounds + return -1; + } + s->cur_offset += offset; + return 0; + } + // invalid whence param (SEEK_END doesn't have to be supported) + return -1; +} + +long BufferSourceell_func(void *datasource) +{ + BufferSource *s = (BufferSource *)datasource; + return s->cur_offset; +} + +static ov_callbacks g_buffer_ov_callbacks = { + &buffer_sound_read_func, + &buffer_sound_seek_func, + NULL, + &BufferSourceell_func +}; + +SoundBuffer *load_ogg_from_buffer(const std::string &buf, const std::string &id_for_log) +{ + OggVorbis_File oggFile; + + BufferSource s; + s.buf = buf.c_str(); + s.cur_offset = 0; + s.len = buf.size(); + + if (ov_open_callbacks(&s, &oggFile, NULL, 0, g_buffer_ov_callbacks) != 0) { + infostream << "Audio: Error opening " << id_for_log + << " for decoding" << std::endl; + return NULL; + } + + return load_opened_ogg_file(&oggFile, id_for_log); +} + struct PlayingSound { ALuint source_id; @@ -211,7 +286,7 @@ public: m_is_initialized(false) { ALCenum error = ALC_NO_ERROR; - + infostream<<"Audio: Initializing..."<<std::endl; m_device = alcOpenDevice(NULL); @@ -283,7 +358,7 @@ public: m_buffers.clear(); infostream<<"Audio: Deinitialized."<<std::endl; } - + void addBuffer(const std::string &name, SoundBuffer *buf) { std::map<std::string, std::vector<SoundBuffer*> >::iterator i = @@ -375,7 +450,7 @@ public: m_sounds_playing[id] = sound; return id; } - + void deleteSound(int id) { std::map<int, PlayingSound*>::iterator i = @@ -383,7 +458,7 @@ public: if(i == m_sounds_playing.end()) return; PlayingSound *sound = i->second; - + alDeleteSources(1, &sound->source_id); delete sound; @@ -411,7 +486,7 @@ public: } return getBuffer(name); } - + // Remove stopped sounds void maintain() { @@ -449,26 +524,18 @@ public: bool loadSoundFile(const std::string &name, const std::string &filepath) { - SoundBuffer *buf = loadOggFile(filepath); - if(buf) + SoundBuffer *buf = load_ogg_from_file(filepath); + if (buf) addBuffer(name, buf); return false; } bool loadSoundData(const std::string &name, const std::string &filedata) { - // 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); + SoundBuffer *buf = load_ogg_from_buffer(filedata, name); + if (buf) + addBuffer(name, buf); + return false; } void updateListener(v3f pos, v3f vel, v3f at, v3f up) @@ -482,7 +549,7 @@ public: alListenerfv(AL_ORIENTATION, f); warn_if_error(alGetError(), "updateListener"); } - + void setListenerGain(float gain) { alListenerf(AL_GAIN, gain); |