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[col] Refactor color constants

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Atreya Bain
2024-02-19 09:07:28 +05:30
parent 242867d23f
commit 3dcdc36c06
1 changed files with 9 additions and 7 deletions
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16
src/graphics/color.rs
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@@ -4,10 +4,12 @@ use crate::misc::result::EmulatorResult;
#[derive(Debug, Copy, Clone)] #[derive(Debug, Copy, Clone)]
pub struct Color(u8); pub struct Color(u8);
const RED_MULT: u8 = 36;
const GREEN_MULT: u8 = 6;
impl Color { impl Color {
/// Red color offset in the colour byte
const RED_MULT: u8 = 36;
/// green color offset in the colour byte
const GREEN_MULT: u8 = 6;
/// Only first 216 color indices are used. /// Only first 216 color indices are used.
const COLOR_MAX: u8 = 215; const COLOR_MAX: u8 = 215;
const COLOR_FACTOR_8_BIT: u8 = 0x33; const COLOR_FACTOR_8_BIT: u8 = 0x33;
@@ -16,7 +18,7 @@ impl Color {
let red = red / Self::COLOR_FACTOR_8_BIT; let red = red / Self::COLOR_FACTOR_8_BIT;
let green = green / Self::COLOR_FACTOR_8_BIT; let green = green / Self::COLOR_FACTOR_8_BIT;
let blue = blue / Self::COLOR_FACTOR_8_BIT; let blue = blue / Self::COLOR_FACTOR_8_BIT;
Color(red * RED_MULT + green * GREEN_MULT + blue) Color(red * Self::RED_MULT + green * Self::GREEN_MULT + blue)
} }
pub fn try_new(in_mem_color: u8) -> EmulatorResult<Color> { pub fn try_new(in_mem_color: u8) -> EmulatorResult<Color> {
if in_mem_color > Self::COLOR_MAX { if in_mem_color > Self::COLOR_MAX {
@@ -29,10 +31,10 @@ impl Color {
} }
/// This fetches the rgb triplet /// This fetches the rgb triplet
pub fn get_rgb(self) -> [u8; 3] { pub fn get_rgb(self) -> [u8; 3] {
let r = self.0 / RED_MULT; let r = self.0 / Self::RED_MULT;
let gb_byte_remainder = self.0 % RED_MULT; let gb_byte_remainder = self.0 % Self::RED_MULT;
let g = gb_byte_remainder / GREEN_MULT; let g = gb_byte_remainder / Self::GREEN_MULT;
let b = gb_byte_remainder % GREEN_MULT; let b = gb_byte_remainder % Self::GREEN_MULT;
[r * Self::COLOR_FACTOR_8_BIT, g * Self::COLOR_FACTOR_8_BIT, b * Self::COLOR_FACTOR_8_BIT] [r * Self::COLOR_FACTOR_8_BIT, g * Self::COLOR_FACTOR_8_BIT, b * Self::COLOR_FACTOR_8_BIT]
} }
} }