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Some more RingBufferIterator cleanup

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This commit is contained in:
Sebastian Dröge 2017-10-07 11:38:35 +03:00
parent 20f1666bc9
commit 7cf784a9fc
1 changed files with 9 additions and 4 deletions
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13
gst-plugin-audiofx/src/audioecho.rs
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@ -341,7 +341,8 @@ impl RingBuffer {
}
struct RingBufferIter<'a> {
buffer: &'a mut RingBuffer,
buffer: &'a mut [f64],
buffer_pos: &'a mut usize,
read_pos: usize,
write_pos: usize,
size: usize,
@ -357,8 +358,12 @@ impl<'a> RingBufferIter<'a> {
let read_pos = (size - delay + buffer.pos) % size;
let write_pos = buffer.pos % size;
let buffer_pos = &mut buffer.pos;
let buffer = &mut buffer.buffer;
RingBufferIter {
buffer: buffer,
buffer_pos: buffer_pos,
read_pos: read_pos,
write_pos: write_pos,
size: size,
@ -371,8 +376,8 @@ impl<'a> Iterator for RingBufferIter<'a> {
fn next(&mut self) -> Option<Self::Item> {
let res = unsafe {
let r = *self.buffer.buffer.get_unchecked(self.read_pos);
let w = self.buffer.buffer.get_unchecked_mut(self.write_pos);
let r = *self.buffer.get_unchecked(self.read_pos);
let w = self.buffer.get_unchecked_mut(self.write_pos);
// Cast needed to get from &mut f64 to &'a mut f64
(&mut *(w as *mut f64), r)
};
@ -386,6 +391,6 @@ impl<'a> Iterator for RingBufferIter<'a> {
impl<'a> Drop for RingBufferIter<'a> {
fn drop(&mut self) {
self.buffer.pos = self.write_pos;
*self.buffer_pos = self.write_pos;
}
}