| 50 | } |
| 51 | |
| 52 | void Sound::init() |
| 53 | { |
| 54 | if(mSampleData != NULL) |
| 55 | deinit(); |
| 56 | |
| 57 | if(mPath.empty()) |
| 58 | return; |
| 59 | |
| 60 | //load wav file via SDL |
| 61 | SDL_AudioSpec wave; |
| 62 | Uint8 * data = NULL; |
| 63 | Uint32 dlen = 0; |
| 64 | if (SDL_LoadWAV(mPath.c_str(), &wave, &data, &dlen) == NULL) { |
| 65 | LOG(LogError) << "Error loading sound \"" << mPath << "\"!\n" << " " << SDL_GetError(); |
| 66 | return; |
| 67 | } |
| 68 | //build conversion buffer |
| 69 | SDL_AudioCVT cvt; |
| 70 | SDL_BuildAudioCVT(&cvt, wave.format, wave.channels, wave.freq, AUDIO_S16, 2, 44100); |
| 71 | //copy data to conversion buffer |
| 72 | cvt.len = dlen; |
| 73 | cvt.buf = new Uint8[cvt.len * cvt.len_mult]; |
| 74 | memcpy(cvt.buf, data, dlen); |
| 75 | //convert buffer to stereo, 16bit, 44.1kHz |
| 76 | if (SDL_ConvertAudio(&cvt) < 0) { |
| 77 | LOG(LogError) << "Error converting sound \"" << mPath << "\" to 44.1kHz, 16bit, stereo format!\n" << " " << SDL_GetError(); |
| 78 | delete[] cvt.buf; |
| 79 | } |
| 80 | else { |
| 81 | //worked. set up member data |
| 82 | SDL_LockAudio(); |
| 83 | mSampleData = cvt.buf; |
| 84 | mSampleLength = cvt.len_cvt; |
| 85 | mSamplePos = 0; |
| 86 | mSampleFormat.channels = 2; |
| 87 | mSampleFormat.freq = 44100; |
| 88 | mSampleFormat.format = AUDIO_S16; |
| 89 | SDL_UnlockAudio(); |
| 90 | } |
| 91 | //free wav data now |
| 92 | SDL_FreeWAV(data); |
| 93 | } |
| 94 | |
| 95 | void Sound::deinit() |
| 96 | { |