BASS_SAMPLE * bmx_bass_getsampleinfo(HSAMPLE handle) {
BASS_SAMPLE * info = new BASS_SAMPLE;
BOOL success = BASS_SampleGetInfo(handle, info);
if (!success) {
delete info;
return 0;
}
return info;
}
HSAMPLE BassSoundEngine::ReadSound(string filename)
{
HSAMPLE sound;
if(sample_pool.find(filename)!=sample_pool.end())
sound = sample_pool[filename];
else{
sound = BASS_SampleLoad(FALSE, filename.data(), 0, 0, maxChannel, 0);
sample_pool[filename] = sound;
}
// get the music's sampling rate
BASS_SAMPLE info;
BASS_SampleGetInfo(sound, &info);
music_sampleRate = info.freq;
return sound;
}
static bool Configure(SoundTemplate &self, const tinyxml2::XMLElement *element, unsigned int id)
{
const char *name = element->Attribute("name");
if (name == NULL)
return false;
#if defined(USE_BASS)
// load sound file
HSAMPLE handle = BASS_SampleLoad(false, name, 0, 0, 1, BASS_SAMPLE_MONO);
if (!handle)
{
DebugPrint("error loading sound file \"%s\": %s\n", name, BASS_ErrorGetString());
return false;
}
// get sample info
BASS_SAMPLE info;
BASS_SampleGetInfo(handle, &info);
// allocate space for data
self.Reserve(info.length / info.chans);
// set frequency
self.mFrequency = info.freq;
// if converting format...
if ((info.chans > 1) || (info.flags & BASS_SAMPLE_8BITS))
{
// get sample data
void *buf = _alloca(info.length);
BASS_SampleGetData(handle, buf);
// if converting from 8-bit...
int accum = 0;
if (info.flags & BASS_SAMPLE_8BITS)
{
for (unsigned int in = 0, samp = 0; in < info.length; ++in)
{
accum += static_cast<unsigned char *>(buf)[in];
if (++samp >= info.chans)
{
self.Append(short(accum * 257 / samp - 32768));
accum = 0;
samp = 0;
}
}
}
else
{
for (unsigned int in = 0, samp = 0; in < info.length / sizeof(short); ++in)
{
accum += static_cast<short *>(buf)[in];
if (++samp >= info.chans)
{
self.Append(short(accum / samp));
accum = 0;
samp = 0;
}
}
}
}
else
{
// copy sound data
BASS_SampleGetData(handle, static_cast<short *>(self.mData) + self.mLength);
}
// free loaded data
BASS_SampleFree(handle);
#elif defined(USE_SDL_MIXER)
// load sound file
Mix_Chunk *loadchunk = Mix_LoadWAV(name);
if (!loadchunk)
{
DebugPrint("error loading sound file \"%s\": %s\n", name, Mix_GetError());
return false;
}
// copy sound data
self.mSize = self.mLength * sizeof(short) + loadchunk->alen;
self.mData = realloc(self.mData, self.mSize);
memcpy(static_cast<short *>(self.mData) + self.mLength, loadchunk->abuf, loadchunk->alen);
self.mLength = self.mSize / sizeof(short);
// free loaded data
Mix_FreeChunk(loadchunk);
#elif defined(USE_SDL)
// load wave file data
SDL_AudioSpec wave;
Uint8 *data;
Uint32 dlen;
if ( !SDL_LoadWAV(name, &wave, &data, &dlen) )
{
DebugPrint("error loading sound file \"%s\": %s\n", name, SDL_GetError());
return false;
}
// build audio conversion
SDL_AudioCVT cvt;
SDL_BuildAudioCVT(&cvt, wave.format, wave.channels, wave.freq,
AUDIO_S16, 1, AUDIO_FREQUENCY);
// append sound data
self.mSize = self.mLength * sizeof(short) + dlen * cvt.len_mult;
self.mData = realloc(self.mData, self.mSize);
memcpy(static_cast<short *>(self.mData) + self.mLength, data, dlen);
cvt.buf = reinterpret_cast<unsigned char *>(static_cast<short *>(mData) + mLength);
cvt.len = dlen;
// convert to final format
SDL_ConvertAudio(&cvt);
self.mLength += cvt.len_cvt / sizeof(short);
self.mSize = self.mLength * sizeof(short);
self.mData = realloc(self.mData, self.mSize);
// release wave file data
SDL_FreeWAV(data);
#endif
return true;
}
