/* Uncompress 4096 stereo sample pairs of ADPCM. */
static int doStereoBlock(
boost::int16_t** out_data, // in/out param
int n_bits,
BitsReader& in,
int left_sample,
int left_stepsize_index,
int right_sample,
int right_stepsize_index
)
{
/* First samples don't need to be decompressed. */
boost::uint32_t sample_count = 2;
*(*out_data)++ = (boost::int16_t) left_sample;
*(*out_data)++ = (boost::int16_t) right_sample;
unsigned bitsNeeded = n_bits*2;
while (sample_count < 4096 && in.gotBits(bitsNeeded))
{
int left_raw_code = in.read_uint(n_bits);
doSample(n_bits, left_sample, left_stepsize_index, left_raw_code);
*(*out_data)++ = (boost::int16_t) left_sample;
int right_raw_code = in.read_uint(n_bits);
doSample(n_bits, right_sample, right_stepsize_index, right_raw_code);
*(*out_data)++ = (boost::int16_t) right_sample;
sample_count++;
}
return sample_count;
}
Value sample(const Math::Point2D &samplePoint, const Math::Bivector2D &sampleProjection) const
{
Value value;
doSample(samplePoint, sampleProjection, value.channels);
return value;
}
void
MONITOR_EXT_WRAP_NAME(pnga_nbwait)(Integer *nbhandle)
{
MONITOR_EXT_GET_NAME_WRAP(real_pnga_nbwait, pnga_nbwait);
// FIXME: measure only if tagged
def_isSampled();
def_timeBeg(isSampled);
real_pnga_nbwait(nbhandle);
if (isSampled) {
double latency = timeElapsed(timeBeg);
doSample(G_A_NULL,
doMetric(hpcrun_ga_metricId_latency, latency, r),
do0(), do0(), do0());
}
}
