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Refactor to make it a bit more obvious what the write buffer is

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This commit is contained in:
Gwilym Kuiper 2021-06-06 12:51:42 +01:00
parent 106e53f917
commit e181f7a751
1 changed files with 11 additions and 13 deletions
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24
agb/src/sound/mixer.rs
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@ -111,26 +111,24 @@ impl MixerBuffer {
} }
fn clear(&mut self) { fn clear(&mut self) {
if self.buffer_1_active { self.get_write_buffer().fill(0);
self.buffer2.fill(0);
} else {
self.buffer1.fill(0);
}
} }
fn write_channel(&mut self, channel: &SoundChannel) { fn write_channel(&mut self, channel: &SoundChannel) {
let data_to_copy = &channel.data[channel.pos..(channel.pos + SOUND_BUFFER_SIZE)]; let data_to_copy = &channel.data[channel.pos..(channel.pos + SOUND_BUFFER_SIZE)];
let place_to_write_to = self.get_write_buffer();
for (i, v) in data_to_copy.iter().enumerate() {
let v = *v as i8;
place_to_write_to[i] = place_to_write_to[i].saturating_add(v);
}
}
fn get_write_buffer(&mut self) -> &mut [i8; SOUND_BUFFER_SIZE] {
if self.buffer_1_active { if self.buffer_1_active {
for (i, v) in data_to_copy.iter().enumerate() { &mut self.buffer2
let v = *v as i8;
self.buffer2[i] = self.buffer2[i].saturating_add(v);
}
} else { } else {
for (i, v) in data_to_copy.iter().enumerate() { &mut self.buffer1
let v = *v as i8;
self.buffer1[i] = self.buffer1[i].saturating_add(v);
}
} }
} }
} }