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audiovisualwaveform: minor refactoring

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Improves code readability.
This commit is contained in:
itsmattkc
2021-04-14 13:47:46 +10:00
parent b425754fef
commit 8e1ac7c1a0
1 changed files with 11 additions and 7 deletions
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app/audio/audiovisualwaveform.cpp
+11 -7
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@@ -133,22 +133,26 @@ void AudioVisualWaveform::OverwriteSums(const AudioVisualWaveform &sums, const r
double rate_dbl = rate.toDouble();
int start_index = time_to_samples(dest, rate_dbl);
int sample_start = time_to_samples(offset, rate_dbl);
// Get our destination sample
int our_start_index = time_to_samples(dest, rate_dbl);
int copy_len = their_arr.size() - sample_start;
// Get our source sample
int their_start_index = time_to_samples(offset, rate_dbl);
// Determine how much we're copying
int copy_len = their_arr.size() - their_start_index;
if (!length.isNull()) {
copy_len = qMin(copy_len, time_to_samples(length, rate_dbl));
}
int end_index = start_index + copy_len;
// Determine end index of our array
int end_index = our_start_index + copy_len;
if (our_arr.size() < end_index) {
our_arr.resize(end_index);
}
memcpy(reinterpret_cast<char*>(our_arr.data()) + start_index * sizeof(SamplePerChannel),
reinterpret_cast<const char*>(their_arr.constData()) + time_to_samples(offset, rate_dbl) * sizeof(SamplePerChannel),
memcpy(reinterpret_cast<char*>(our_arr.data()) + our_start_index * sizeof(SamplePerChannel),
reinterpret_cast<const char*>(their_arr.constData()) + their_start_index * sizeof(SamplePerChannel),
copy_len * sizeof(SamplePerChannel));
}
}