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Eliminate memmove.

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This commit is contained in:
Thomas Harte
2025-12-06 10:44:54 -06:00
parent daadf62ea8
commit 171b890f0d
1 changed files with 7 additions and 6 deletions
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13
Outputs/Speaker/Implementation/LowpassSpeaker.hpp
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@@ -168,7 +168,7 @@ private:
}
}
inline void resample_input_buffer(int scale) {
inline void resample_input_buffer(const int scale) {
if(output_buffer_.empty()) {
return;
}
@@ -200,16 +200,17 @@ private:
did_complete_samples(this, output_buffer_, is_stereo);
}
// If the next loop around is going to reuse some of the samples just collected, use a memmove to
// If the next loop around is going to reuse some of the samples just collected, copy them to
// preserve them in the correct locations (TODO: use a longer buffer to fix that?) and don't skip
// anything. Otherwise skip as required to get to the next sample batch and don't expect to reuse.
const size_t steps = size_t(step_rate_ + position_error_) * (is_stereo + 1);
position_error_ = fmodf(step_rate_ + position_error_, 1.0f);
if(steps < input_buffer_.size()) {
auto *const input_buffer = input_buffer_.data();
std::memmove( input_buffer,
&input_buffer[steps],
sizeof(int16_t) * (input_buffer_.size() - steps));
std::copy(
input_buffer_.begin() + ptrdiff_t(steps),
input_buffer_.end(),
input_buffer_.begin()
);
input_buffer_depth_ -= steps;
} else {
if(steps > input_buffer_.size()) {