alex/agb
1
0
Fork 0
mirror of https://github.com/italicsjenga/agb.git synced 2024-12-23 08:11:33 +11:00
Code Issues Packages Projects Releases Wiki Activity

Improve accuracy of the volume

Browse source
This commit is contained in:
Gwilym Inzani 2023-07-23 22:10:25 +01:00
parent 095723bbf8
commit d233a2539c
3 changed files with 20 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
tracker/agb-tracker-interop/src/lib.rs
View file

@ -19,7 +19,7 @@ pub struct Sample<'a> {
pub data: &'a [u8],
pub should_loop: bool,
pub restart_point: u32,
pub volume: Num<i16, 4>,
pub volume: Num<i16, 8>,
}
#[derive(Debug)]
@ -46,9 +46,9 @@ pub enum PatternEffect {
/// Plays an arpeggiation of three notes in one row, cycling betwen the current note, current note + first speed, current note + second speed
Arpeggio(Num<u16, 8>, Num<u16, 8>),
Panning(Num<i16, 4>),
Volume(Num<i16, 4>),
VolumeSlide(Num<i16, 4>),
FineVolumeSlide(Num<i16, 4>),
Volume(Num<i16, 8>),
VolumeSlide(Num<i16, 8>),
FineVolumeSlide(Num<i16, 8>),
NoteCut(u32),
Portamento(Num<u16, 8>),
/// Slide each tick the first amount to at most the second amount

20
tracker/agb-tracker/src/lib.rs
View file

@ -102,7 +102,7 @@ pub struct Tracker {
struct TrackerChannel {
channel_id: Option<ChannelId>,
base_speed: Num<u32, 8>,
volume: Num<i16, 4>,
volume: Num<i32, 8>,
}
impl Tracker {
@ -143,7 +143,7 @@ impl Tracker {
let pattern_slots =
&self.track.pattern_data[pattern_data_pos..pattern_data_pos + self.track.num_channels];
for (channel, pattern_slot) in self.channels.iter_mut().zip(pattern_slots).skip(3) {
for (channel, pattern_slot) in self.channels.iter_mut().zip(pattern_slots) {
if pattern_slot.sample != 0 && self.tick == 0 {
let sample = &self.track.samples[pattern_slot.sample as usize - 1];
channel.play_sound(mixer, sample);
@ -210,7 +210,7 @@ impl TrackerChannel {
let mut new_channel = SoundChannel::new(sample.data);
new_channel.volume(sample.volume);
new_channel.volume(sample.volume.change_base());
if sample.should_loop {
new_channel
@ -219,7 +219,7 @@ impl TrackerChannel {
}
self.channel_id = mixer.play_sound(new_channel);
self.volume = sample.volume;
self.volume = sample.volume.change_base();
}
fn set_speed(&mut self, mixer: &mut Mixer<'_>, speed: Num<u32, 8>) {
@ -259,19 +259,19 @@ impl TrackerChannel {
channel.panning(*panning);
}
PatternEffect::Volume(volume) => {
channel.volume(*volume);
self.volume = *volume;
channel.volume(volume.change_base());
self.volume = volume.change_base();
}
PatternEffect::VolumeSlide(amount) => {
if tick != 0 {
self.volume = (self.volume + *amount).max(0.into());
channel.volume(self.volume);
self.volume = (self.volume + amount.change_base()).max(0.into());
channel.volume(self.volume.try_change_base().unwrap());
}
}
PatternEffect::FineVolumeSlide(amount) => {
if tick == 0 {
self.volume = (self.volume + *amount).max(0.into());
channel.volume(self.volume);
self.volume = (self.volume + amount.change_base()).max(0.into());
channel.volume(self.volume.try_change_base().unwrap());
}
}
PatternEffect::NoteCut(wait) => {

12
tracker/agb-xm-core/src/lib.rs
View file

@ -55,7 +55,7 @@ pub fn parse_module(module: &Module) -> TokenStream {
fine_tune: f64,
relative_note: i8,
restart_point: u32,
volume: Num<i16, 4>,
volume: Num<i16, 8>,
}
let mut samples = vec![];
@ -76,7 +76,7 @@ pub fn parse_module(module: &Module) -> TokenStream {
usize::MAX
};
let volume = Num::from_raw((sample.volume * (1 << 4) as f32) as i16);
let volume = Num::from_raw((sample.volume * (1 << 8) as f32) as i16);
let sample = match &sample.data {
SampleDataType::Depth8(depth8) => depth8
@ -163,10 +163,10 @@ pub fn parse_module(module: &Module) -> TokenStream {
.unwrap_or(1.into()),
),
0x80..=0x8F => PatternEffect::FineVolumeSlide(
-Num::new((slot.volume - 0x80) as i16) / 16,
-Num::new((slot.volume - 0x80) as i16) / 64,
),
0x90..=0x9F => PatternEffect::FineVolumeSlide(
Num::new((slot.volume - 0x90) as i16) / 16,
Num::new((slot.volume - 0x90) as i16) / 64,
),
0xC0..=0xCF => PatternEffect::Panning(
Num::new(slot.volume as i16 - (0xC0 + (0xCF - 0xC0) / 2)) / 64,
@ -299,10 +299,10 @@ pub fn parse_module(module: &Module) -> TokenStream {
}
0xE => match slot.effect_parameter >> 4 {
0xA => PatternEffect::FineVolumeSlide(
Num::new((slot.effect_parameter & 0xf) as i16) / 16,
Num::new((slot.effect_parameter & 0xf) as i16) / 64,
),
0xB => PatternEffect::FineVolumeSlide(
-Num::new((slot.effect_parameter & 0xf) as i16) / 16,
-Num::new((slot.effect_parameter & 0xf) as i16) / 64,
),
0xC => PatternEffect::NoteCut((slot.effect_parameter & 0xf).into()),
_ => PatternEffect::None,