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device.rs
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device.rs
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use std::env;
use std::fmt;
use lazy_static::lazy_static;
use crate::input::TouchProto;
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum Model {
Elipsa,
Nia,
LibraH2O,
Forma32GB,
Forma,
ClaraHD,
AuraH2OEd2V2,
AuraH2OEd2V1,
AuraEd2V2,
AuraEd2V1,
AuraONELimEd,
AuraONE,
Touch2,
GloHD,
AuraH2O,
Aura,
AuraHD,
Mini,
Glo,
TouchC,
TouchAB,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum Orientation {
Portrait,
Landscape,
}
impl fmt::Display for Model {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Model::Elipsa => write!(f, "Elipsa"),
Model::Nia => write!(f, "Nia"),
Model::LibraH2O => write!(f, "Libra H₂O"),
Model::Forma32GB => write!(f, "Forma 32GB"),
Model::Forma => write!(f, "Forma"),
Model::ClaraHD => write!(f, "Clara HD"),
Model::AuraH2OEd2V1 => write!(f, "Aura H₂O Edition 2 Version 1"),
Model::AuraH2OEd2V2 => write!(f, "Aura H₂O Edition 2 Version 2"),
Model::AuraEd2V1 => write!(f, "Aura Edition 2 Version 1"),
Model::AuraEd2V2 => write!(f, "Aura Edition 2 Version 2"),
Model::AuraONELimEd => write!(f, "Aura ONE Limited Edition"),
Model::AuraONE => write!(f, "Aura ONE"),
Model::Touch2 => write!(f, "Touch 2.0"),
Model::GloHD => write!(f, "Glo HD"),
Model::AuraH2O => write!(f, "Aura H₂O"),
Model::Aura => write!(f, "Aura"),
Model::AuraHD => write!(f, "Aura HD"),
Model::Mini => write!(f, "Mini"),
Model::Glo => write!(f, "Glo"),
Model::TouchC => write!(f, "Touch C"),
Model::TouchAB => write!(f, "Touch A/B"),
}
}
}
#[derive(Debug)]
pub struct Device {
pub model: Model,
pub proto: TouchProto,
pub dims: (u32, u32),
pub dpi: u16,
}
#[derive(Debug, Copy, Clone, PartialEq)]
pub enum FrontlightKind {
Standard,
Natural,
Premixed,
}
impl Device {
pub fn new(product: &str, model_number: &str) -> Device {
match product {
"kraken" => Device {
model: Model::Glo,
proto: TouchProto::Single,
dims: (758, 1024),
dpi: 212,
},
"pixie" => Device {
model: Model::Mini,
proto: TouchProto::Single,
dims: (600, 800),
dpi: 200,
},
"dragon" => Device {
model: Model::AuraHD,
proto: TouchProto::Single,
dims: (1080, 1440),
dpi: 265,
},
"phoenix" => Device {
model: Model::Aura,
proto: TouchProto::MultiA,
dims: (758, 1024),
dpi: 212,
},
"dahlia" => Device {
model: Model::AuraH2O,
proto: TouchProto::MultiA,
dims: (1080, 1440),
dpi: 265,
},
"alyssum" => Device {
model: Model::GloHD,
proto: TouchProto::MultiA,
dims: (1072, 1448),
dpi: 300,
},
"pika" => Device {
model: Model::Touch2,
proto: TouchProto::MultiA,
dims: (600, 800),
dpi: 167,
},
"daylight" => Device {
model: if model_number == "381" { Model::AuraONELimEd } else { Model::AuraONE },
proto: TouchProto::MultiA,
dims: (1404, 1872),
dpi: 300,
},
"star" => Device {
model: if model_number == "379" { Model::AuraEd2V2 } else { Model::AuraEd2V1 },
proto: TouchProto::MultiA,
dims: (758, 1024),
dpi: 212,
},
"snow" => Device {
model: if model_number == "378" { Model::AuraH2OEd2V2 } else { Model::AuraH2OEd2V1 },
proto: TouchProto::MultiB,
dims: (1080, 1440),
dpi: 265,
},
"nova" => Device {
model: Model::ClaraHD,
proto: TouchProto::MultiB,
dims: (1072, 1448),
dpi: 300,
},
"frost" => Device {
model: if model_number == "380" { Model::Forma32GB } else { Model::Forma },
proto: TouchProto::MultiB,
dims: (1440, 1920),
dpi: 300,
},
"storm" => Device {
model: Model::LibraH2O,
proto: TouchProto::MultiB,
dims: (1264, 1680),
dpi: 300,
},
"luna" => Device {
model: Model::Nia,
proto: TouchProto::MultiB,
dims: (758, 1024),
dpi: 212,
},
"europa" => Device {
model: Model::Elipsa,
proto: TouchProto::MultiB,
dims: (1404, 1872),
dpi: 227,
},
_ => Device {
model: if model_number == "320" { Model::TouchC } else { Model::TouchAB },
proto: TouchProto::Single,
dims: (600, 800),
dpi: 167,
},
}
}
pub fn frontlight_kind(&self) -> FrontlightKind {
match self.model {
Model::AuraONE |
Model::AuraONELimEd |
Model::AuraH2OEd2V1 |
Model::AuraH2OEd2V2 => FrontlightKind::Natural,
Model::ClaraHD |
Model::Forma |
Model::Forma32GB |
Model::LibraH2O |
Model::Nia |
Model::Elipsa => FrontlightKind::Premixed,
_ => FrontlightKind::Standard,
}
}
pub fn has_natural_light(&self) -> bool {
self.frontlight_kind() != FrontlightKind::Standard
}
pub fn has_lightsensor(&self) -> bool {
matches!(self.model,
Model::AuraONE | Model::AuraONELimEd)
}
pub fn has_gyroscope(&self) -> bool {
matches!(self.model,
Model::Forma | Model::Forma32GB | Model::LibraH2O |
Model::Elipsa)
}
pub fn has_page_turn_buttons(&self) -> bool {
matches!(self.model,
Model::Forma | Model::Forma32GB | Model::LibraH2O)
}
pub fn has_removable_storage(&self) -> bool {
matches!(self.model,
Model::AuraH2O | Model::Aura | Model::AuraHD |
Model::Mini | Model::Glo | Model::TouchAB | Model::TouchC)
}
pub fn should_invert_buttons(&self, rotation: i8) -> bool {
let sr = self.startup_rotation();
let (_, dir) = self.mirroring_scheme();
rotation == (4 + sr - dir) % 4 || rotation == (4 + sr - 2 * dir) % 4
}
pub fn orientation(&self, rotation: i8) -> Orientation {
let discriminant = match self.model {
Model::LibraH2O => 0,
_ => 1,
};
if rotation % 2 == discriminant {
Orientation::Portrait
} else {
Orientation::Landscape
}
}
pub fn mark(&self) -> u8 {
match self.model {
Model::Elipsa => 8,
Model::Nia |
Model::LibraH2O |
Model::Forma32GB |
Model::Forma |
Model::ClaraHD |
Model::AuraH2OEd2V2 |
Model::AuraEd2V2 => 7,
Model::AuraH2OEd2V1 |
Model::AuraEd2V1 |
Model::AuraONELimEd |
Model::AuraONE |
Model::Touch2 |
Model::GloHD => 6,
Model::AuraH2O |
Model::Aura => 5,
Model::AuraHD |
Model::Mini |
Model::Glo |
Model::TouchC => 4,
Model::TouchAB => 3,
}
}
pub fn should_mirror_axes(&self, rotation: i8) -> (bool, bool) {
let (mxy, dir) = self.mirroring_scheme();
let mx = (4 + (mxy + dir)) % 4;
let my = (4 + (mxy - dir)) % 4;
let mirror_x = mxy == rotation || mx == rotation;
let mirror_y = mxy == rotation || my == rotation;
(mirror_x, mirror_y)
}
// Returns the center and direction of the mirroring pattern.
pub fn mirroring_scheme(&self) -> (i8, i8) {
match self.model {
Model::AuraH2OEd2V1 => (3, 1),
Model::AuraH2OEd2V2 => (0, -1),
Model::Forma | Model::Forma32GB => (2, -1),
Model::LibraH2O => (3, 1),
_ => (2, 1),
}
}
pub fn should_swap_axes(&self, rotation: i8) -> bool {
rotation % 2 == self.swapping_scheme()
}
pub fn swapping_scheme(&self) -> i8 {
match self.model {
Model::LibraH2O => 0,
_ => 1,
}
}
// The written rotation that makes the screen be in portrait mode
// with the Kobo logo at the bottom.
pub fn startup_rotation(&self) -> i8 {
match self.model {
Model::LibraH2O => 0,
Model::AuraH2OEd2V1 => 1,
Model::Forma | Model::Forma32GB => 1,
_ => 3,
}
}
// Return a device independent rotation value given
// the device dependent written rotation value *n*.
pub fn to_canonical(&self, n: i8) -> i8 {
let (_, dir) = self.mirroring_scheme();
(4 + dir * (n - self.startup_rotation())) % 4
}
// Return a device dependent written rotation value given
// the device independent rotation value *n*.
pub fn from_canonical(&self, n: i8) -> i8 {
let (_, dir) = self.mirroring_scheme();
(self.startup_rotation() + (4 + dir * n) % 4) % 4
}
// Return a device dependent written rotation value given
// the device dependent read rotation value *n*.
pub fn transformed_rotation(&self, n: i8) -> i8 {
match self.model {
Model::AuraHD | Model::AuraH2O => n ^ 2,
Model::AuraH2OEd2V2 => (4 - n) % 4,
Model::Forma | Model::Forma32GB => (4 - n) % 4,
_ => n,
}
}
pub fn transformed_gyroscope_rotation(&self, n: i8) -> i8 {
match self.model {
Model::LibraH2O => n ^ 1,
_ => n,
}
}
}
lazy_static! {
pub static ref CURRENT_DEVICE: Device = {
let product = env::var("PRODUCT").unwrap_or_default();
let model_number = env::var("MODEL_NUMBER").unwrap_or_default();
Device::new(&product, &model_number)
};
}
#[cfg(test)]
mod tests {
use super::Device;
#[test]
fn test_device_canonical_rotation() {
let forma = Device::new("frost", "377");
let aura_one = Device::new("daylight", "373");
for n in 0..4 {
assert_eq!(forma.from_canonical(forma.to_canonical(n)), n);
}
assert_eq!(aura_one.from_canonical(0), aura_one.startup_rotation());
assert_eq!(forma.from_canonical(1) - forma.from_canonical(0),
aura_one.from_canonical(2) - aura_one.from_canonical(3));
}
}