Vendor things

third-party/vendor/orbclient/src/blur.rs

@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: MIT
+
+/*
+Inspired from http://blog.ivank.net/fastest-gaussian-blur.html the algorithm 4.
+The struct MathColor is needed for the calculate with bigger numbers, the Color struct save the r,g,b values with a u8.
+*/
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
+
+use core::ops::{Add, AddAssign, Sub};
+use crate::color::Color;
+
+#[derive(Copy, Clone)]
+pub struct MathColor {
+    pub r: isize,
+    pub g: isize,
+    pub b: isize,
+}
+
+impl MathColor {
+    pub fn new(color: Color) -> Self {
+        MathColor {
+            r: color.r() as isize,
+            g: color.g() as isize,
+            b: color.b() as isize,
+        }
+    }
+
+    pub fn get_multiplied_color(&mut self, iarr: f32) -> Color {
+        Color::rgb(
+            (self.r as f32 * iarr).round() as u8,
+            (self.g as f32 * iarr).round() as u8,
+            (self.b as f32 * iarr).round() as u8,
+        )
+    }
+}
+
+impl Add for MathColor {
+    type Output = MathColor;
+
+    #[inline(always)]
+    fn add(self, color: MathColor) -> MathColor {
+        MathColor {
+            r: self.r + color.r,
+            g: self.g + color.g,
+            b: self.b + color.b,
+        }
+    }
+}
+
+impl AddAssign for MathColor {
+    #[inline(always)]
+    fn add_assign(&mut self, color: MathColor) {
+        *self = MathColor {
+            r: self.r + color.r,
+            g: self.g + color.g,
+            b: self.b + color.b,
+        };
+    }
+}
+
+impl Sub for MathColor {
+    type Output = MathColor;
+
+    #[inline(always)]
+    fn sub(self, color: MathColor) -> MathColor {
+        MathColor {
+            r: self.r - color.r,
+            g: self.g - color.g,
+            b: self.b - color.b,
+        }
+    }
+}
+
+pub fn gauss_blur(data: &mut [Color], w: u32, h: u32, r: f32) {
+    let bxs = boxes_for_gauss(r, 3);
+    let mut tcl = data.to_owned();
+
+    box_blur(
+        &mut tcl,
+        data,
+        w as usize,
+        h as usize,
+        ((bxs[0] - 1) / 2) as usize,
+    );
+    box_blur(
+        &mut tcl,
+        data,
+        w as usize,
+        h as usize,
+        ((bxs[1] - 1) / 2) as usize,
+    );
+    box_blur(
+        &mut tcl,
+        data,
+        w as usize,
+        h as usize,
+        ((bxs[2] - 1) / 2) as usize,
+    );
+}
+
+fn boxes_for_gauss(sigma: f32, n: usize) -> Vec<i32> {
+    let w_ideal: f32 = ((12.0 * sigma * sigma / n as f32) + 1.0).sqrt();
+    let mut wl: i32 = w_ideal.floor() as i32;
+    if wl % 2 == 0 {
+        wl -= 1;
+    };
+    let wu: i32 = wl + 2;
+
+    let m_ideal: f32 = (12.0 * sigma * sigma
+        - n as f32 * wl as f32 * wl as f32
+        - 4.0 * n as f32 * wl as f32
+        - 3.0 * n as f32)
+        / (-4.0 * wl as f32 - 4.0);
+    let m: usize = m_ideal.round() as usize;
+
+    let mut sizes = Vec::<i32>::new();
+    for i in 0..n {
+        sizes.push(if i < m { wl } else { wu });
+    }
+    sizes
+}
+
+fn box_blur(tcl: &mut [Color], scl: &mut [Color], w: usize, h: usize, r: usize) {
+    box_blur_t(scl, tcl, w, h, r);
+    box_blur_h(tcl, scl, w, h, r);
+}
+
+#[inline(always)]
+fn box_blur_h(tcl: &mut [Color], scl: &mut [Color], w: usize, h: usize, r: usize) {
+    let iarr: f32 = 1.0 / (r + r + 1) as f32;
+
+    for i in 0..h {
+        let mut ti: usize = i * w;
+        let mut li: usize = ti;
+        let mut ri: usize = ti + r;
+        let fv = MathColor::new(tcl[ti]);
+        let lv = MathColor::new(tcl[ti + w - 1]);
+
+        let mut val: MathColor = MathColor {
+            r: (r + 1) as isize * fv.r,
+            g: (r + 1) as isize * fv.g,
+            b: (r + 1) as isize * fv.b,
+        };
+
+        for j in 0..r {
+            val += MathColor::new(tcl[ti + j]);
+        }
+
+        for _ in 0..(r + 1) {
+            val += MathColor::new(tcl[ri]) - fv;
+            scl[ti] = val.get_multiplied_color(iarr);
+            ti += 1;
+            ri += 1;
+        }
+
+        for _ in (r + 1)..(w - r) {
+            val += MathColor::new(tcl[ri]) - MathColor::new(tcl[li]);
+            scl[ti] = val.get_multiplied_color(iarr);
+            ti += 1;
+            ri += 1;
+            li += 1;
+        }
+
+        for _ in (w - r)..w {
+            val += lv - MathColor::new(tcl[li]);
+            scl[ti] = val.get_multiplied_color(iarr);
+            ti += 1;
+            li += 1;
+        }
+    }
+}
+
+#[inline(always)]
+fn box_blur_t(tcl: &mut [Color], scl: &mut [Color], w: usize, h: usize, r: usize) {
+    let iarr: f32 = 1.0 / (r + r + 1) as f32;
+
+    for i in 0..w {
+        let mut ti: usize = i;
+        let mut li: usize = ti;
+        let mut ri: usize = ti + r * w;
+        let fv = MathColor::new(tcl[ti]);
+        let lv = MathColor::new(tcl[ti + w * (h - 1)]);
+
+        let mut val: MathColor = MathColor {
+            r: (r + 1) as isize * fv.r,
+            g: (r + 1) as isize * fv.g,
+            b: (r + 1) as isize * fv.b,
+        };
+
+        for j in 0..r {
+            val += MathColor::new(tcl[ti + j * w]);
+        }
+
+        for _ in 0..(r + 1) {
+            val += MathColor::new(tcl[ri]) - fv;
+            scl[ti] = val.get_multiplied_color(iarr);
+            ti += w;
+            ri += w;
+        }
+
+        for _ in (r + 1)..(h - r) {
+            val += MathColor::new(tcl[ri]) - MathColor::new(tcl[li]);
+            scl[ti] = val.get_multiplied_color(iarr);
+            ti += w;
+            ri += w;
+            li += w;
+        }
+
+        for _ in (h - r)..h {
+            val += lv - MathColor::new(tcl[li]);
+            scl[ti] = val.get_multiplied_color(iarr);
+            ti += w;
+            li += w;
+        }
+    }
+}

third-party/vendor/orbclient/src/color.rs

@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: MIT
+
+use core::fmt;
+#[cfg(feature = "serde")]
+use serde::de::{self, Deserializer};
+#[cfg(feature = "serde")]
+use serde::Deserialize;
+
+/// A color
+#[derive(Copy, Clone)]
+#[repr(transparent)]
+pub struct Color {
+    pub data: u32,
+}
+
+impl Color {
+    /// Create a new color from RGB
+    pub const fn rgb(r: u8, g: u8, b: u8) -> Self {
+        Color {
+            data: 0xFF000000 | ((r as u32) << 16) | ((g as u32) << 8) | (b as u32),
+        }
+    }
+
+    /// Set the alpha
+    pub const fn rgba(r: u8, g: u8, b: u8, a: u8) -> Self {
+        Color {
+            data: ((a as u32) << 24) | ((r as u32) << 16) | ((g as u32) << 8) | (b as u32),
+        }
+    }
+
+    /// Get the r value
+    pub fn r(&self) -> u8 {
+        ((self.data & 0x00FF0000) >> 16) as u8
+    }
+
+    /// Get the g value
+    pub fn g(&self) -> u8 {
+        ((self.data & 0x0000FF00) >> 8) as u8
+    }
+
+    /// Get the b value
+    pub fn b(&self) -> u8 {
+        (self.data & 0x000000FF) as u8
+    }
+
+    /// Get the alpha value
+    pub fn a(&self) -> u8 {
+        ((self.data & 0xFF000000) >> 24) as u8
+    }
+
+    /// Interpolate between two colors
+    pub fn interpolate(start_color: Color, end_color: Color, scale: f64) -> Color {
+        let r = Color::interp(start_color.r(), end_color.r(), scale);
+        let g = Color::interp(start_color.g(), end_color.g(), scale);
+        let b = Color::interp(start_color.b(), end_color.b(), scale);
+        let a = Color::interp(start_color.a(), end_color.a(), scale);
+        Color::rgba(r, g, b, a)
+    }
+
+    fn interp(start_color: u8, end_color: u8, scale: f64) -> u8 {
+        ((end_color as f64 - start_color as f64) * scale + start_color as f64) as u8
+    }
+}
+
+/// Compare two colors (Do not take care of alpha)
+impl PartialEq for Color {
+    fn eq(&self, other: &Color) -> bool {
+        self.r() == other.r() && self.g() == other.g() && self.b() == other.b()
+    }
+}
+
+impl fmt::Debug for Color {
+    fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+        write!(f, "{:#010X}", { self.data })
+    }
+}
+
+#[cfg(feature = "serde")]
+impl<'de> Deserialize<'de> for Color {
+    fn deserialize<D>(deserializer: D) -> Result<Color, D::Error>
+        where
+            D: Deserializer<'de>,
+    {
+        deserializer.deserialize_i32(ColorVisitor)
+    }
+}
+
+#[cfg(feature = "serde")]
+struct ColorVisitor;
+
+#[cfg(feature = "serde")]
+impl<'de> de::Visitor<'de> for ColorVisitor {
+    type Value = Color;
+
+    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        formatter.write_str("Color specification in HEX format '#ARGB'")
+    }
+
+    fn visit_str<E>(self, color_spec: &str) -> Result<Self::Value, E>
+        where
+            E: de::Error,
+    {
+        if color_spec.len() != 9 {
+            return Err(E::custom(format!("Color spec must be of format '#AARRGGBB' ('{}')", color_spec)))
+        }
+
+        if &color_spec[0..1] != "#" {
+            return Err(E::custom(format!("Color spec must begin with '#' ('{}')", color_spec)));
+        }
+
+        let a = u8::from_str_radix(&color_spec[1..3], 16)
+            .map_err(|e| E::custom(e))?;
+        let r = u8::from_str_radix(&color_spec[3..5], 16)
+            .map_err(|e| E::custom(e.to_string()))?;
+        let g = u8::from_str_radix(&color_spec[5..7], 16)
+            .map_err(|e| E::custom(e.to_string()))?;
+        let b = u8::from_str_radix(&color_spec[7..9], 16)
+            .map_err(|e| E::custom(e.to_string()))?;
+
+        Ok(Color::rgba(r, g, b, a))
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn partial_eq() {
+        assert_eq!(Color::rgb(1, 2, 3), Color::rgba(1, 2, 3, 200));
+        assert_ne!(Color::rgb(1, 2, 3), Color::rgba(11, 2, 3, 200));
+        assert_eq!(Color::rgba(1, 2, 3, 200), Color::rgba(1, 2, 3, 200));
+    }
+
+    #[test]
+    fn alignment() {
+        assert_eq!(4, core::mem::size_of::<Color>());
+        assert_eq!(8, core::mem::size_of::<[Color; 2]>());
+        assert_eq!(12, core::mem::size_of::<[Color; 3]>());
+        assert_eq!(16, core::mem::size_of::<[Color; 4]>());
+        assert_eq!(20, core::mem::size_of::<[Color; 5]>());
+    }
+
+    #[cfg(features = "serde")]
+    mod serde {
+        use serde_derive::Deserialize;
+        use toml;
+        use crate::Color;
+
+        #[derive(Deserialize)]
+        struct TestColor {
+            color: Color,
+        }
+
+        #[test]
+        fn deserialize_ok() {
+            let color_spec = r##"color = "#00010203""##;
+            let test_color: TestColor = toml::from_str(color_spec).expect("Color spec did not parse correctly");
+            assert_eq!(test_color.color.a(), 0, "Alpha channel incorrect");
+            assert_eq!(test_color.color.r(), 1, "Red channel incorrect");
+            assert_eq!(test_color.color.g(), 2, "Green channel incorrect");
+            assert_eq!(test_color.color.b(), 3, "Blue channel incorrect");
+        }
+
+        #[test]
+        fn deserialize_hex() {
+            let color_spec = r##"color = "#AABBCCDD""##;
+            let _: TestColor = toml::from_str(color_spec).expect("Color spec did not parse HEX correctly");
+        }
+
+        #[test]
+        fn deserialize_no_hash() {
+            let color_spec = r##"color = "$00010203""##;
+            let test_color: Result<TestColor, _> = toml::from_str(color_spec);
+            assert!(test_color.is_err(), "Color spec should not parse correctly without leading '#'");
+            assert!(test_color.err().unwrap().to_string().contains("must begin with '#'"));
+        }
+
+        #[test]
+        fn deserialize_not_hex() {
+            let color_spec = r##"color = "#GG010203""##;
+            let test_color: Result<TestColor, _> = toml::from_str(color_spec);
+            assert!(test_color.is_err(), "Color spec should not parse invalid HEX correctly");
+            assert!(test_color.err().unwrap().to_string().contains("invalid digit"));
+        }
+
+        #[test]
+        fn deserialize_str_too_long() {
+            let color_spec = r##"color = "#0001020304""##;
+            let test_color: Result<TestColor, _> = toml::from_str(color_spec);
+            assert!(test_color.is_err(), "Color spec should not parse invalid spec correctly");
+            assert!(test_color.err().unwrap().to_string().contains("must be of format '#AARRGGBB'"));
+        }
+
+        #[test]
+        fn deserialize_str_too_short() {
+            let color_spec = r##"color = "#000102""##;
+            let test_color: Result<TestColor, _> = toml::from_str(color_spec);
+            assert!(test_color.is_err(), "Color spec should not parse invalid spec correctly");
+            assert!(test_color.err().unwrap().to_string().contains("must be of format '#AARRGGBB'"));
+        }
+    }
+}

third-party/vendor/orbclient/src/event.rs

@@ -0,0 +1,647 @@
+// SPDX-License-Identifier: MIT
+
+use core::ops::{Deref, DerefMut};
+use core::{char, mem, slice};
+
+pub const EVENT_NONE: i64 = 0;
+pub const EVENT_KEY: i64 = 1;
+pub const EVENT_MOUSE: i64 = 2;
+pub const EVENT_BUTTON: i64 = 3;
+pub const EVENT_SCROLL: i64 = 4;
+pub const EVENT_QUIT: i64 = 5;
+pub const EVENT_FOCUS: i64 = 6;
+pub const EVENT_MOVE: i64 = 7;
+pub const EVENT_RESIZE: i64 = 8;
+pub const EVENT_SCREEN: i64 = 9;
+pub const EVENT_CLIPBOARD: i64 = 10;
+pub const EVENT_MOUSE_RELATIVE: i64 = 11;
+pub const EVENT_DROP: i64 = 12;
+pub const EVENT_TEXT_INPUT: i64 = 13;
+pub const EVENT_CLIPBOARD_UPDATE: i64 = 14;
+pub const EVENT_HOVER: i64 = 15;
+
+/// An optional event
+#[derive(Copy, Clone, Debug)]
+pub enum EventOption {
+    /// A key event
+    Key(KeyEvent),
+    /// A text input event
+    TextInput(TextInputEvent),
+    /// A mouse event (absolute)
+    Mouse(MouseEvent),
+    /// A mouse event (relative)
+    MouseRelative(MouseRelativeEvent),
+    /// A mouse button event
+    Button(ButtonEvent),
+    /// A mouse scroll event
+    Scroll(ScrollEvent),
+    /// A quit request event
+    Quit(QuitEvent),
+    /// A focus event
+    Focus(FocusEvent),
+    /// A move event
+    Move(MoveEvent),
+    /// A resize event
+    Resize(ResizeEvent),
+    /// A screen report event
+    Screen(ScreenEvent),
+    /// A clipboard event
+    Clipboard(ClipboardEvent),
+    /// A clipboard update event
+    ClipboardUpdate(ClipboardUpdateEvent),
+    /// A drop file / text event (available on linux, windows and macOS)
+    Drop(DropEvent),
+    /// A hover event
+    Hover(HoverEvent),
+    /// An unknown event
+    Unknown(Event),
+    /// No event
+    None,
+}
+
+/// An event
+#[derive(Copy, Clone, Debug)]
+#[repr(packed)]
+pub struct Event {
+    pub code: i64,
+    pub a: i64,
+    pub b: i64,
+}
+
+#[allow(clippy::new_without_default)]
+impl Event {
+    /// Create a null event
+    pub fn new() -> Event {
+        Event {
+            code: 0,
+            a: 0,
+            b: 0,
+        }
+    }
+
+    /// Convert the event ot an optional event
+    // TODO: Consider doing this via a From trait.
+    pub fn to_option(self) -> EventOption {
+        match self.code {
+            EVENT_NONE => EventOption::None,
+            EVENT_KEY => EventOption::Key(KeyEvent::from_event(self)),
+            EVENT_TEXT_INPUT => EventOption::TextInput(TextInputEvent::from_event(self)),
+            EVENT_MOUSE => EventOption::Mouse(MouseEvent::from_event(self)),
+            EVENT_MOUSE_RELATIVE => {
+                EventOption::MouseRelative(MouseRelativeEvent::from_event(self))
+            }
+            EVENT_BUTTON => EventOption::Button(ButtonEvent::from_event(self)),
+            EVENT_SCROLL => EventOption::Scroll(ScrollEvent::from_event(self)),
+            EVENT_QUIT => EventOption::Quit(QuitEvent::from_event(self)),
+            EVENT_FOCUS => EventOption::Focus(FocusEvent::from_event(self)),
+            EVENT_MOVE => EventOption::Move(MoveEvent::from_event(self)),
+            EVENT_RESIZE => EventOption::Resize(ResizeEvent::from_event(self)),
+            EVENT_SCREEN => EventOption::Screen(ScreenEvent::from_event(self)),
+            EVENT_CLIPBOARD => EventOption::Clipboard(ClipboardEvent::from_event(self)),
+            EVENT_CLIPBOARD_UPDATE => {
+                EventOption::ClipboardUpdate(ClipboardUpdateEvent::from_event(self))
+            }
+            EVENT_DROP => EventOption::Drop(DropEvent::from_event(self)),
+            EVENT_HOVER => EventOption::Hover(HoverEvent::from_event(self)),
+            _ => EventOption::Unknown(self),
+        }
+    }
+}
+
+impl Deref for Event {
+    type Target = [u8];
+    fn deref(&self) -> &[u8] {
+        unsafe {
+            slice::from_raw_parts(self as *const Event as *const u8, mem::size_of::<Event>())
+                as &[u8]
+        }
+    }
+}
+
+impl DerefMut for Event {
+    fn deref_mut(&mut self) -> &mut [u8] {
+        unsafe {
+            slice::from_raw_parts_mut(self as *mut Event as *mut u8, mem::size_of::<Event>())
+                as &mut [u8]
+        }
+    }
+}
+
+pub const K_A: u8 = 0x1E;
+pub const K_B: u8 = 0x30;
+pub const K_C: u8 = 0x2E;
+pub const K_D: u8 = 0x20;
+pub const K_E: u8 = 0x12;
+pub const K_F: u8 = 0x21;
+pub const K_G: u8 = 0x22;
+pub const K_H: u8 = 0x23;
+pub const K_I: u8 = 0x17;
+pub const K_J: u8 = 0x24;
+pub const K_K: u8 = 0x25;
+pub const K_L: u8 = 0x26;
+pub const K_M: u8 = 0x32;
+pub const K_N: u8 = 0x31;
+pub const K_O: u8 = 0x18;
+pub const K_P: u8 = 0x19;
+pub const K_Q: u8 = 0x10;
+pub const K_R: u8 = 0x13;
+pub const K_S: u8 = 0x1F;
+pub const K_T: u8 = 0x14;
+pub const K_U: u8 = 0x16;
+pub const K_V: u8 = 0x2F;
+pub const K_W: u8 = 0x11;
+pub const K_X: u8 = 0x2D;
+pub const K_Y: u8 = 0x15;
+pub const K_Z: u8 = 0x2C;
+pub const K_0: u8 = 0x0B;
+pub const K_1: u8 = 0x02;
+pub const K_2: u8 = 0x03;
+pub const K_3: u8 = 0x04;
+pub const K_4: u8 = 0x05;
+pub const K_5: u8 = 0x06;
+pub const K_6: u8 = 0x07;
+pub const K_7: u8 = 0x08;
+pub const K_8: u8 = 0x09;
+pub const K_9: u8 = 0x0A;
+
+// Numpad keys (codes 0x70-0x79)
+pub const K_NUM_0: u8 = 0x70;
+pub const K_NUM_1: u8 = 0x71;
+pub const K_NUM_2: u8 = 0x72;
+pub const K_NUM_3: u8 = 0x73;
+pub const K_NUM_4: u8 = 0x74;
+pub const K_NUM_5: u8 = 0x75;
+pub const K_NUM_6: u8 = 0x76;
+pub const K_NUM_7: u8 = 0x77;
+pub const K_NUM_8: u8 = 0x78;
+pub const K_NUM_9: u8 = 0x79;
+
+/// Tick/tilde key
+pub const K_TICK: u8 = 0x29;
+/// Minus/underline key
+pub const K_MINUS: u8 = 0x0C;
+/// Equals/plus key
+pub const K_EQUALS: u8 = 0x0D;
+/// Backslash/pipe key
+pub const K_BACKSLASH: u8 = 0x2B;
+/// Bracket open key
+pub const K_BRACE_OPEN: u8 = 0x1A;
+/// Bracket close key
+pub const K_BRACE_CLOSE: u8 = 0x1B;
+/// Semicolon key
+pub const K_SEMICOLON: u8 = 0x27;
+/// Quote key
+pub const K_QUOTE: u8 = 0x28;
+/// Comma key
+pub const K_COMMA: u8 = 0x33;
+/// Period key
+pub const K_PERIOD: u8 = 0x34;
+/// Slash key
+pub const K_SLASH: u8 = 0x35;
+/// Backspace key
+pub const K_BKSP: u8 = 0x0E;
+/// Space key
+pub const K_SPACE: u8 = 0x39;
+/// Tab key
+pub const K_TAB: u8 = 0x0F;
+/// Capslock
+pub const K_CAPS: u8 = 0x3A;
+/// Left shift
+pub const K_LEFT_SHIFT: u8 = 0x2A;
+/// Right shift
+pub const K_RIGHT_SHIFT: u8 = 0x36;
+/// Control key
+pub const K_CTRL: u8 = 0x1D;
+/// Alt key
+pub const K_ALT: u8 = 0x38;
+/// AltGr key
+pub const K_ALT_GR: u8 = 0x64;
+/// Enter key
+pub const K_ENTER: u8 = 0x1C;
+/// Escape key
+pub const K_ESC: u8 = 0x01;
+/// F1 key
+pub const K_F1: u8 = 0x3B;
+/// F2 key
+pub const K_F2: u8 = 0x3C;
+/// F3 key
+pub const K_F3: u8 = 0x3D;
+/// F4 key
+pub const K_F4: u8 = 0x3E;
+/// F5 key
+pub const K_F5: u8 = 0x3F;
+/// F6 key
+pub const K_F6: u8 = 0x40;
+/// F7 key
+pub const K_F7: u8 = 0x41;
+/// F8 key
+pub const K_F8: u8 = 0x42;
+/// F9 key
+pub const K_F9: u8 = 0x43;
+/// F10 key
+pub const K_F10: u8 = 0x44;
+/// Home key
+pub const K_HOME: u8 = 0x47;
+/// Up key
+pub const K_UP: u8 = 0x48;
+/// Page up key
+pub const K_PGUP: u8 = 0x49;
+/// Left key
+pub const K_LEFT: u8 = 0x4B;
+/// Right key
+pub const K_RIGHT: u8 = 0x4D;
+/// End key
+pub const K_END: u8 = 0x4F;
+/// Down key
+pub const K_DOWN: u8 = 0x50;
+/// Page down key
+pub const K_PGDN: u8 = 0x51;
+/// Delete key
+pub const K_DEL: u8 = 0x53;
+/// F11 key
+pub const K_F11: u8 = 0x57;
+/// F12 key
+pub const K_F12: u8 = 0x58;
+/// SUPER/META/WIN Key
+pub const K_SUPER : u8 = 0x5B;
+/// Media Key for Volume toggle (mute/unmute)
+pub const K_VOLUME_TOGGLE : u8 = 0x80 + 0x20;
+/// Media Key for Volume Down
+pub const K_VOLUME_DOWN : u8 = 0x80 + 0x2E;
+/// Media Key for Volume Up
+pub const K_VOLUME_UP : u8 = 0x80 + 0x30;
+
+/// A key event (such as a pressed key)
+#[derive(Copy, Clone, Debug)]
+pub struct KeyEvent {
+    /// The character of the key
+    pub character: char,
+    /// The scancode of the key
+    pub scancode: u8,
+    /// Was it pressed?
+    pub pressed: bool,
+}
+
+impl KeyEvent {
+    /// Convert to an `Event`
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_KEY,
+            a: self.character as i64,
+            b: self.scancode as i64 | (self.pressed as i64) << 8,
+        }
+    }
+
+    /// Convert from an `Event`
+    pub fn from_event(event: Event) -> KeyEvent {
+        KeyEvent {
+            character: char::from_u32(event.a as u32).unwrap_or('\0'),
+            scancode: event.b as u8,
+            pressed: event.b & 1 << 8 == 1 << 8,
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug)]
+pub struct TextInputEvent {
+    pub character: char,
+}
+
+impl TextInputEvent {
+    /// Convert to an `Event`
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_TEXT_INPUT,
+            a: self.character as i64,
+            b: 0,
+        }
+    }
+
+    /// Convert from an `Event`
+    pub fn from_event(event: Event) -> TextInputEvent {
+        TextInputEvent {
+            character: char::from_u32(event.a as u32).unwrap_or('\0'),
+        }
+    }
+}
+
+/// A event related to the mouse (absolute position)
+#[derive(Copy, Clone, Debug)]
+pub struct MouseEvent {
+    /// The x coordinate of the mouse
+    pub x: i32,
+    /// The y coordinate of the mouse
+    pub y: i32,
+}
+
+impl MouseEvent {
+    /// Convert to an `Event`
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_MOUSE,
+            a: self.x as i64,
+            b: self.y as i64,
+        }
+    }
+
+    /// Convert an `Event` to a `MouseEvent`
+    pub fn from_event(event: Event) -> MouseEvent {
+        MouseEvent {
+            x: event.a as i32,
+            y: event.b as i32,
+        }
+    }
+}
+
+/// A event related to the mouse (relative position)
+#[derive(Copy, Clone, Debug)]
+pub struct MouseRelativeEvent {
+    /// The x coordinate of the mouse
+    pub dx: i32,
+    /// The y coordinate of the mouse
+    pub dy: i32,
+}
+
+impl MouseRelativeEvent {
+    /// Convert to an `Event`
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_MOUSE_RELATIVE,
+            a: self.dx as i64,
+            b: self.dy as i64,
+        }
+    }
+
+    /// Convert an `Event` to a `MouseRelativeEvent`
+    pub fn from_event(event: Event) -> MouseRelativeEvent {
+        MouseRelativeEvent {
+            dx: event.a as i32,
+            dy: event.b as i32,
+        }
+    }
+}
+
+/// A event for clicking the mouse
+#[derive(Copy, Clone, Debug)]
+pub struct ButtonEvent {
+    /// Was the left button pressed?
+    pub left: bool,
+    /// Was the middle button pressed?
+    pub middle: bool,
+    /// Was the right button pressed?
+    pub right: bool,
+}
+
+impl ButtonEvent {
+    /// Convert to an `Event`
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_BUTTON,
+            a: self.left as i64 | (self.middle as i64) << 1 | (self.right as i64) << 2,
+            b: 0,
+        }
+    }
+
+    /// Convert an `Event` to a `ButtonEvent`
+    pub fn from_event(event: Event) -> ButtonEvent {
+        ButtonEvent {
+            left: event.a & 1 == 1,
+            middle: event.a & 2 == 2,
+            right: event.a & 4 == 4,
+        }
+    }
+}
+
+/// A event for scrolling the mouse
+#[derive(Copy, Clone, Debug)]
+pub struct ScrollEvent {
+    /// The x distance of the scroll
+    pub x: i32,
+    /// The y distance of the scroll
+    pub y: i32,
+}
+
+impl ScrollEvent {
+    /// Convert to an `Event`
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_SCROLL,
+            a: self.x as i64,
+            b: self.y as i64,
+        }
+    }
+
+    /// Convert an `Event` to a `ScrollEvent`
+    pub fn from_event(event: Event) -> ScrollEvent {
+        ScrollEvent {
+            x: event.a as i32,
+            y: event.b as i32,
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug)]
+pub struct QuitEvent;
+
+impl QuitEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_QUIT,
+            a: 0,
+            b: 0,
+        }
+    }
+
+    pub fn from_event(_: Event) -> QuitEvent {
+        QuitEvent
+    }
+}
+
+/// A focus event
+#[derive(Copy, Clone, Debug)]
+pub struct FocusEvent {
+    /// True if window has been focused, false if not
+    pub focused: bool,
+}
+
+impl FocusEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_FOCUS,
+            a: self.focused as i64,
+            b: 0,
+        }
+    }
+
+    pub fn from_event(event: Event) -> FocusEvent {
+        FocusEvent {
+            focused: event.a > 0,
+        }
+    }
+}
+
+/// A move event
+#[derive(Copy, Clone, Debug)]
+pub struct MoveEvent {
+    pub x: i32,
+    pub y: i32,
+}
+
+impl MoveEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_MOVE,
+            a: self.x as i64,
+            b: self.y as i64,
+        }
+    }
+
+    pub fn from_event(event: Event) -> MoveEvent {
+        MoveEvent {
+            x: event.a as i32,
+            y: event.b as i32,
+        }
+    }
+}
+
+/// A resize event
+#[derive(Copy, Clone, Debug)]
+pub struct ResizeEvent {
+    pub width: u32,
+    pub height: u32,
+}
+
+impl ResizeEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_RESIZE,
+            a: self.width as i64,
+            b: self.height as i64,
+        }
+    }
+
+    pub fn from_event(event: Event) -> ResizeEvent {
+        ResizeEvent {
+            width: event.a as u32,
+            height: event.b as u32,
+        }
+    }
+}
+
+/// A screen report event
+#[derive(Copy, Clone, Debug)]
+pub struct ScreenEvent {
+    pub width: u32,
+    pub height: u32,
+}
+
+impl ScreenEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_SCREEN,
+            a: self.width as i64,
+            b: self.height as i64,
+        }
+    }
+
+    pub fn from_event(event: Event) -> ScreenEvent {
+        ScreenEvent {
+            width: event.a as u32,
+            height: event.b as u32,
+        }
+    }
+}
+
+pub const CLIPBOARD_COPY: u8 = 0;
+pub const CLIPBOARD_CUT: u8 = 1;
+pub const CLIPBOARD_PASTE: u8 = 2;
+
+/// A clipboard event
+#[derive(Copy, Clone, Debug)]
+pub struct ClipboardUpdateEvent;
+
+impl ClipboardUpdateEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_CLIPBOARD_UPDATE,
+            a: 0,
+            b: 0,
+        }
+    }
+
+    pub fn from_event(_: Event) -> ClipboardUpdateEvent {
+        ClipboardUpdateEvent
+    }
+}
+
+/// A clipboard event
+#[derive(Copy, Clone, Debug)]
+pub struct ClipboardEvent {
+    pub kind: u8,
+    pub size: usize,
+}
+
+impl ClipboardEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_CLIPBOARD,
+            a: self.kind as i64,
+            b: self.size as i64,
+        }
+    }
+
+    pub fn from_event(event: Event) -> ClipboardEvent {
+        ClipboardEvent {
+            kind: event.a as u8,
+            size: event.b as usize,
+        }
+    }
+}
+
+pub const DROP_FILE: u8 = 0;
+pub const DROP_TEXT: u8 = 1;
+
+/// A drop file event.
+#[derive(Copy, Clone, Debug)]
+pub struct DropEvent {
+    pub kind: u8,
+}
+
+impl DropEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_DROP,
+            a: self.kind as i64,
+            b: 0,
+        }
+    }
+
+    pub fn from_event(event: Event) -> DropEvent {
+        DropEvent {
+            kind: event.a as u8,
+        }
+    }
+}
+
+/// A hover event
+#[derive(Copy, Clone, Debug)]
+pub struct HoverEvent {
+    /// True if window has been entered, false if exited
+    pub entered: bool,
+}
+
+impl HoverEvent {
+    pub fn to_event(&self) -> Event {
+        Event {
+            code: EVENT_HOVER,
+            a: self.entered as i64,
+            b: 0,
+        }
+    }
+
+    pub fn from_event(event: Event) -> HoverEvent {
+        HoverEvent {
+            entered: event.a > 0,
+        }
+    }
+}

third-party/vendor/orbclient/src/graphicspath.rs

@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: MIT
+
+#[cfg(not(feature = "std"))]
+use alloc::vec::Vec;
+
+/// point type (is the point a new position or a connection point)
+pub enum PointType {
+    Move,
+    Connect,
+    None,
+}
+
+/// graphic path with similar functions like html canvas
+pub struct GraphicsPath {
+    x: i32,
+    y: i32,
+    pub points: Vec<(i32, i32, PointType)>,
+}
+
+#[allow(clippy::new_without_default)]
+impl GraphicsPath {
+    pub fn new() -> GraphicsPath {
+        GraphicsPath {
+            x: 0,
+            y: 0,
+            points: Vec::new(),
+        }
+    }
+
+    /// move to position
+    pub fn move_to(&mut self, x: i32, y: i32) {
+        self.points.push((x, y, PointType::Move));
+        self.x = x;
+        self.y = y;
+    }
+
+    /// create a line between the last and new point
+    pub fn line_to(&mut self, x: i32, y: i32) {
+        self.points.push((x, y, PointType::Connect));
+        self.x = x;
+        self.y = y;
+    }
+
+    /// quadratic bezier curve
+    pub fn quadratic_curve_to(&mut self, argx1: i32, argy1: i32, argx2: i32, argy2: i32) {
+        let mut t: f32 = 0.0;
+        let mut u: f32;
+        let mut tt: f32;
+        let mut uu: f32;
+        let mut x: f32;
+        let mut y: f32;
+
+        while t < 1.0 {
+            u = 1.0 - t;
+            uu = u * u;
+            tt = t * t;
+
+            x = (self.x as f32) * uu;
+            y = (self.y as f32) * uu;
+
+            x += 2.0 * u * t * (argx1 as f32);
+            y += 2.0 * u * t * (argy1 as f32);
+
+            x += tt * (argx2 as f32);
+            y += tt * (argy2 as f32);
+
+            t += 0.01;
+            self.points.push((x as i32, y as i32, PointType::Connect));
+        }
+
+        self.x = argx2;
+        self.y = argy2;
+    }
+
+    /// cubic bezier curve
+    pub fn bezier_curve_to(
+        &mut self,
+        argx1: i32,
+        argy1: i32,
+        argx2: i32,
+        argy2: i32,
+        argx3: i32,
+        argy3: i32,
+    ) {
+        let mut t: f32 = 0.0;
+        let mut u: f32;
+        let mut tt: f32;
+        let mut uu: f32;
+        let mut uuu: f32;
+        let mut ttt: f32;
+        let mut x: f32;
+        let mut y: f32;
+
+        while t < 1.0 {
+            u = 1.0 - t;
+            tt = t * t;
+            uu = u * u;
+            uuu = uu * u;
+            ttt = tt * t;
+
+            x = (self.x as f32) * uuu;
+            y = (self.y as f32) * uuu;
+
+            x += 3.0 * uu * t * (argx1 as f32);
+            y += 3.0 * uu * t * (argy1 as f32);
+
+            x += 3.0 * u * tt * (argx2 as f32);
+            y += 3.0 * u * tt * (argy2 as f32);
+
+            x += ttt * (argx3 as f32);
+            y += ttt * (argy3 as f32);
+
+            t += 0.01;
+            self.points.push((x as i32, y as i32, PointType::Connect));
+        }
+
+        self.x = argx3;
+        self.y = argy3;
+    }
+}

third-party/vendor/orbclient/src/lib.rs

@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: MIT
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+#[cfg(not(feature = "std"))]
+extern crate alloc;
+
+#[cfg(all(feature = "std", not(target_os = "redox")))]
+#[path = "sys/sdl2.rs"]
+mod sys;
+
+#[cfg(all(feature = "std", target_os = "redox"))]
+#[path = "sys/orbital.rs"]
+mod sys;
+
+#[cfg(feature = "std")]
+pub use sys::{get_display_size, EventIter, Window};
+
+#[cfg(feature = "unifont")]
+pub static FONT: &[u8] = include_bytes!("../res/unifont.font");
+
+pub use color::Color;
+pub use event::*;
+pub use graphicspath::GraphicsPath;
+pub use renderer::Renderer;
+
+#[cfg(feature = "std")]
+mod blur;
+pub mod color;
+pub mod event;
+pub mod graphicspath;
+pub mod renderer;
+
+#[derive(Clone, Copy, Debug)]
+pub enum WindowFlag {
+    Async,
+    Back,
+    Front,
+    Borderless,
+    Resizable,
+    Transparent,
+    Unclosable,
+}
+
+#[derive(Clone, Copy, Debug)]
+pub enum Mode {
+    Blend,     //Composite
+    Overwrite, //Replace
+}

third-party/vendor/orbclient/src/renderer.rs

@@ -0,0 +1,886 @@
+// SPDX-License-Identifier: MIT
+
+use core::cell::Cell;
+use core::cmp;
+
+#[cfg(feature = "std")]
+use crate::blur;
+use crate::color::Color;
+use crate::graphicspath::GraphicsPath;
+use crate::graphicspath::PointType;
+use crate::Mode;
+
+pub trait Renderer {
+    /// Get width
+    fn width(&self) -> u32;
+
+    /// Get height
+    fn height(&self) -> u32;
+
+    /// Access the pixel buffer
+    fn data(&self) -> &[Color];
+
+    /// Access the pixel buffer mutably
+    fn data_mut(&mut self) -> &mut [Color];
+
+    /// Flip the buffer
+    fn sync(&mut self) -> bool;
+
+    /// Set/get drawing mode
+    fn mode(&self) -> &Cell<Mode>;
+
+    ///Draw a pixel
+    //faster pixel implementation (multiplexing)
+    fn pixel(&mut self, x: i32, y: i32, color: Color) {
+        let replace = match self.mode().get() {
+            Mode::Blend => false,
+            Mode::Overwrite => true,
+        };
+        let w = self.width();
+        let h = self.height();
+        let data = self.data_mut();
+
+        if x >= 0 && y >= 0 && x < w as i32 && y < h as i32 {
+            let new = color.data;
+            let alpha = (new >> 24) & 0xFF;
+            let old = &mut data[y as usize * w as usize + x as usize].data;
+
+            if alpha >= 255 || replace {
+                *old = new;
+            } else if alpha > 0 {
+                let n_alpha = 255 - alpha;
+                let rb = ((n_alpha * (*old & 0x00FF00FF)) + (alpha * (new & 0x00FF00FF))) >> 8;
+                let ag = (n_alpha * ((*old & 0xFF00FF00) >> 8))
+                    + (alpha * (0x01000000 | ((new & 0x0000FF00) >> 8)));
+
+                *old = (rb & 0x00FF00FF) | (ag & 0xFF00FF00);
+            }
+        }
+    }
+
+    /// Draw a piece of an arc. Negative radius will fill in the inside
+    fn arc(&mut self, x0: i32, y0: i32, radius: i32, parts: u8, color: Color) {
+        let mut x = radius.abs();
+        let mut y = 0;
+        let mut err = 0;
+
+        // https://github.com/rust-lang/rust-clippy/issues/5354
+        #[allow(clippy::comparison_chain)]
+        while x >= y {
+            if radius < 0 {
+                if parts & 1 << 0 != 0 {
+                    self.rect(x0 - x, y0 + y, x as u32, 1, color);
+                }
+                if parts & 1 << 1 != 0 {
+                    self.rect(x0, y0 + y, x as u32 + 1, 1, color);
+                }
+                if parts & 1 << 2 != 0 {
+                    self.rect(x0 - y, y0 + x, y as u32, 1, color);
+                }
+                if parts & 1 << 3 != 0 {
+                    self.rect(x0, y0 + x, y as u32 + 1, 1, color);
+                }
+                if parts & 1 << 4 != 0 {
+                    self.rect(x0 - x, y0 - y, x as u32, 1, color);
+                }
+                if parts & 1 << 5 != 0 {
+                    self.rect(x0, y0 - y, x as u32 + 1, 1, color);
+                }
+                if parts & 1 << 6 != 0 {
+                    self.rect(x0 - y, y0 - x, y as u32, 1, color);
+                }
+                if parts & 1 << 7 != 0 {
+                    self.rect(x0, y0 - x, y as u32 + 1, 1, color);
+                }
+            } else if radius == 0 {
+                self.pixel(x0, y0, color);
+            } else {
+                if parts & 1 << 0 != 0 {
+                    self.pixel(x0 - x, y0 + y, color);
+                }
+                if parts & 1 << 1 != 0 {
+                    self.pixel(x0 + x, y0 + y, color);
+                }
+                if parts & 1 << 2 != 0 {
+                    self.pixel(x0 - y, y0 + x, color);
+                }
+                if parts & 1 << 3 != 0 {
+                    self.pixel(x0 + y, y0 + x, color);
+                }
+                if parts & 1 << 4 != 0 {
+                    self.pixel(x0 - x, y0 - y, color);
+                }
+                if parts & 1 << 5 != 0 {
+                    self.pixel(x0 + x, y0 - y, color);
+                }
+                if parts & 1 << 6 != 0 {
+                    self.pixel(x0 - y, y0 - x, color);
+                }
+                if parts & 1 << 7 != 0 {
+                    self.pixel(x0 + y, y0 - x, color);
+                }
+            }
+
+            y += 1;
+            err += 1 + 2 * y;
+            if 2 * (err - x) + 1 > 0 {
+                x -= 1;
+                err += 1 - 2 * x;
+            }
+        }
+    }
+
+    /// Draw a circle. Negative radius will fill in the inside
+    fn circle(&mut self, x0: i32, y0: i32, radius: i32, color: Color) {
+        let mut x = radius.abs();
+        let mut y = 0;
+        let mut err = -radius.abs();
+
+        match radius {
+            radius if radius > 0 => {
+                err = 0;
+                while x >= y {
+                    self.pixel(x0 - x, y0 + y, color);
+                    self.pixel(x0 + x, y0 + y, color);
+                    self.pixel(x0 - y, y0 + x, color);
+                    self.pixel(x0 + y, y0 + x, color);
+                    self.pixel(x0 - x, y0 - y, color);
+                    self.pixel(x0 + x, y0 - y, color);
+                    self.pixel(x0 - y, y0 - x, color);
+                    self.pixel(x0 + y, y0 - x, color);
+
+                    y += 1;
+                    err += 1 + 2 * y;
+                    if 2 * (err - x) + 1 > 0 {
+                        x -= 1;
+                        err += 1 - 2 * x;
+                    }
+                }
+            }
+
+            radius if radius < 0 => {
+                while x >= y {
+                    let lasty = y;
+                    err += y;
+                    y += 1;
+                    err += y;
+                    self.line4points(x0, y0, x, lasty, color);
+                    if err >= 0 {
+                        if x != lasty {
+                            self.line4points(x0, y0, lasty, x, color);
+                        }
+                        err -= x;
+                        x -= 1;
+                        err -= x;
+                    }
+                }
+            }
+            _ => {
+                self.pixel(x0, y0, color);
+            }
+        }
+    }
+
+    fn line4points(&mut self, x0: i32, y0: i32, x: i32, y: i32, color: Color) {
+        //self.line(x0 - x, y0 + y, (x+x0), y0 + y, color);
+        self.rect(x0 - x, y0 + y, x as u32 * 2 + 1, 1, color);
+        if y != 0 {
+            //self.line(x0 - x, y0 - y, (x+x0), y0-y , color);
+            self.rect(x0 - x, y0 - y, x as u32 * 2 + 1, 1, color);
+        }
+    }
+
+    /// Draw a line
+    fn line(&mut self, argx1: i32, argy1: i32, argx2: i32, argy2: i32, color: Color) {
+        let mut x = argx1;
+        let mut y = argy1;
+
+        let dx = if argx1 > argx2 {
+            argx1 - argx2
+        } else {
+            argx2 - argx1
+        };
+        let dy = if argy1 > argy2 {
+            argy1 - argy2
+        } else {
+            argy2 - argy1
+        };
+
+        let sx = if argx1 < argx2 { 1 } else { -1 };
+        let sy = if argy1 < argy2 { 1 } else { -1 };
+
+        let mut err = if dx > dy { dx } else { -dy } / 2;
+        let mut err_tolerance;
+
+        loop {
+            self.pixel(x, y, color);
+
+            if x == argx2 && y == argy2 {
+                break;
+            };
+
+            err_tolerance = 2 * err;
+
+            if err_tolerance > -dx {
+                err -= dy;
+                x += sx;
+            }
+            if err_tolerance < dy {
+                err += dx;
+                y += sy;
+            }
+        }
+    }
+
+    fn lines(&mut self, points: &[[i32; 2]], color: Color) {
+        if points.is_empty() {
+            // when no points given, do nothing
+        } else if points.len() == 1 {
+            self.pixel(points[0][0], points[0][1], color);
+        } else {
+            for i in 0..points.len() - 1 {
+                self.line(
+                    points[i][0],
+                    points[i][1],
+                    points[i + 1][0],
+                    points[i + 1][1],
+                    color,
+                );
+            }
+        }
+    }
+
+    /// Draw a path (GraphicsPath)
+    fn draw_path_stroke(&mut self, graphicspath: GraphicsPath, color: Color) {
+        let mut x: i32 = 0;
+        let mut y: i32 = 0;
+
+        for point in graphicspath.points {
+            if let PointType::Connect = point.2 {
+                self.line(x, y, point.0, point.1, color)
+            }
+            x = point.0;
+            y = point.1;
+        }
+    }
+
+    /// Draw a character, using the loaded font
+    #[cfg(feature = "unifont")]
+    fn char(&mut self, x: i32, y: i32, c: char, color: Color) {
+        let mut offset = (c as usize) * 16;
+        for row in 0..16 {
+            let row_data = if offset < crate::FONT.len() {
+                crate::FONT[offset]
+            } else {
+                0
+            };
+
+            for col in 0..8 {
+                let pixel = (row_data >> (7 - col)) & 1;
+                if pixel > 0 {
+                    self.pixel(x + col, y + row, color);
+                }
+            }
+            offset += 1;
+        }
+    }
+
+    /// Set entire window to a color
+    fn set(&mut self, color: Color) {
+        let data = self.data_mut();
+        let data_ptr = data.as_mut_ptr();
+        for i in 0..data.len() as isize {
+            unsafe { *data_ptr.offset(i) = color }
+        }
+    }
+
+    /// Sets the whole window to black
+    fn clear(&mut self) {
+        self.set(Color::rgb(0, 0, 0));
+    }
+
+    fn rect(&mut self, x: i32, y: i32, w: u32, h: u32, color: Color) {
+        let replace = match self.mode().get() {
+            Mode::Blend => false,
+            Mode::Overwrite => true,
+        };
+        let self_w = self.width();
+        let self_h = self.height();
+
+        let start_y = cmp::max(0, cmp::min(self_h as i32 - 1, y));
+        let end_y = cmp::max(start_y, cmp::min(self_h as i32, y + h as i32));
+
+        let start_x = cmp::max(0, cmp::min(self_w as i32 - 1, x));
+        let len = cmp::max(start_x, cmp::min(self_w as i32, x + w as i32)) - start_x;
+
+        let alpha = (color.data >> 24) & 0xFF;
+        //if alpha > 0 {
+        if alpha >= 255 || replace {
+            let data = self.data_mut();
+            let data_ptr = data.as_mut_ptr();
+            for y in start_y..end_y {
+                let start = (y * self_w as i32 + start_x) as isize;
+                let end = start + len as isize;
+                for i in start..end {
+                    unsafe {
+                        *data_ptr.offset(i) = color;
+                    }
+                }
+            }
+        } else {
+            for y in start_y..end_y {
+                for x in start_x..start_x + len {
+                    self.pixel(x, y, color);
+                }
+            }
+        }
+        //}
+    }
+
+    #[cfg(feature = "std")]
+    fn box_blur(&mut self, x: i32, y: i32, w: u32, h: u32, r: i32) {
+        let self_w = self.width();
+        let self_h = self.height();
+
+        let start_y = cmp::max(0, cmp::min(self_h as i32 - 1, y));
+        let end_y = cmp::max(start_y, cmp::min(self_h as i32, y + h as i32));
+
+        let start_x = cmp::max(0, cmp::min(self_w as i32 - 1, x));
+        let end_x = cmp::max(start_x, cmp::min(self_w as i32, x + w as i32));
+
+        let data = self.data_mut();
+        let mut blur_data: Vec<Color> = Vec::new();
+        for y in start_y..end_y {
+            for x in start_x..end_x {
+                let old = data[y as usize * self_w as usize + x as usize];
+                blur_data.push(old);
+            }
+        }
+        let real_w = end_x - start_x;
+        let real_h = end_y - start_y;
+        blur::gauss_blur(&mut blur_data, real_w as u32, real_h as u32, r as f32);
+
+        let mut counter: u32 = 0;
+        for y in start_y..end_y {
+            for x in start_x..end_x {
+                let a = blur_data[counter as usize];
+                let old = &mut data[y as usize * self_w as usize + x as usize].data;
+
+                *old = a.data;
+                counter += 1;
+            }
+        }
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    #[cfg(feature = "std")]
+    fn box_shadow(
+        &mut self,
+        x: i32,
+        y: i32,
+        w: u32,
+        h: u32,
+        offset_x: i32,
+        offset_y: i32,
+        r: i32,
+        color: Color,
+    ) {
+        let real_w = w + (2 * r as u32);
+        let real_h = h + (2 * r as u32);
+
+        let mut blur_data: Vec<Color> = Vec::new();
+        for new_x in x..x + real_w as i32 {
+            for new_y in y..y + real_h as i32 {
+                if new_x < x + r
+                    || new_y < y + r
+                    || new_y >= y + h as i32 + r
+                    || new_x >= x + w as i32 + r
+                {
+                    blur_data.push(Color::rgb(255, 0, 255));
+                } else {
+                    blur_data.push(Color::rgb(0, 0, 0));
+                }
+            }
+        }
+
+        blur::gauss_blur(&mut blur_data, real_w, real_h, r as f32 / 3.0);
+
+        let mut counter: u32 = 0;
+        for new_x in (x - r)..(x + real_w as i32 - r) {
+            for new_y in (y - r)..(y + real_h as i32 - r) {
+                let c = blur_data[counter as usize];
+
+                let alpha: u8 = if color.a() < 255 - c.r() {
+                    color.a()
+                } else {
+                    255 - c.r()
+                };
+                let col = Color::rgba(color.r(), color.g(), color.b(), alpha);
+
+                let new_x_b = new_x + offset_x;
+                let new_y_b = new_y + offset_y;
+                if new_x_b < x
+                    || new_x_b > x + w as i32 - 1
+                    || new_y_b < y
+                    || new_y_b > y + h as i32 - 1
+                {
+                    self.pixel(new_x_b, new_y_b, col);
+                }
+                counter += 1;
+            }
+        }
+    }
+
+    /// Display an image
+    fn image(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, data: &[Color]) {
+        match self.mode().get() {
+            Mode::Blend => self.image_fast(start_x, start_y, w, h, data),
+            Mode::Overwrite => self.image_opaque(start_x, start_y, w, h, data),
+        }
+    }
+
+    // TODO: Improve speed
+    #[inline(always)]
+    fn image_legacy(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, data: &[Color]) {
+        let mut i = 0;
+        for y in start_y..start_y + h as i32 {
+            for x in start_x..start_x + w as i32 {
+                if i < data.len() {
+                    self.pixel(x, y, data[i])
+                }
+                i += 1;
+            }
+        }
+    }
+
+    ///Display an image overwriting a portion of window starting at given line : very quick!!
+    fn image_over(&mut self, start: i32, image_data: &[Color]) {
+        let start = start as usize * self.width() as usize;
+        let window_data = self.data_mut();
+        let stop = cmp::min(start + image_data.len(), window_data.len());
+        let end = cmp::min(image_data.len(), window_data.len() - start);
+
+        window_data[start..stop].copy_from_slice(&image_data[..end]);
+    }
+
+    ///Display an image using non transparent method
+    #[inline(always)]
+    fn image_opaque(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, image_data: &[Color]) {
+        let w = w as usize;
+        let mut h = h as usize;
+        let width = self.width() as usize;
+        let height = self.height() as usize;
+        let start_x = start_x as usize;
+        let start_y = start_y as usize;
+
+        //check boundaries
+        if start_x >= width || start_y >= height {
+            return;
+        }
+        if h + start_y > height {
+            h = height - start_y;
+        }
+        let window_data = self.data_mut();
+        let offset = start_y * width + start_x;
+        //copy image slices to window line by line
+        for l in 0..h {
+            let start = offset + l * width;
+            let mut stop = start + w;
+            let begin = l * w;
+            let mut end = begin + w;
+            //check boundaries
+            if start_x + w > width {
+                stop = (start_y + l + 1) * width - 1;
+                end = begin + stop - start;
+            }
+            window_data[start..stop].copy_from_slice(&image_data[begin..end]);
+        }
+    }
+
+    // Speed improved, image can be outside of window boundary
+    #[inline(always)]
+    fn image_fast(&mut self, start_x: i32, start_y: i32, w: u32, h: u32, image_data: &[Color]) {
+        let w = w as usize;
+        let h = h as usize;
+        let width = self.width() as usize;
+        let start_x = start_x as usize;
+        let start_y = start_y as usize;
+
+        //simply return if image is outside of window
+        if start_x >= width || start_y >= self.height() as usize {
+            return;
+        }
+        let window_data = self.data_mut();
+        let offset = start_y * width + start_x;
+
+        //copy image slices to window line by line
+        for l in 0..h {
+            let start = offset + l * width;
+            let mut stop = start + w;
+            let begin = l * w;
+            let end = begin + w;
+
+            //check boundaries
+            if start_x + w > width {
+                stop = (start_y + l + 1) * width;
+            }
+            let mut k = 0;
+            for i in begin..end {
+                if i < image_data.len() {
+                    let new = image_data[i].data;
+                    let alpha = (new >> 24) & 0xFF;
+                    if alpha > 0 && (start + k) < window_data.len() && (start + k) < stop {
+                        let old = &mut window_data[start + k].data;
+                        if alpha >= 255 {
+                            *old = new;
+                        } else {
+                            let n_alpha = 255 - alpha;
+                            let rb = ((n_alpha * (*old & 0x00FF00FF))
+                                + (alpha * (new & 0x00FF00FF)))
+                                >> 8;
+                            let ag = (n_alpha * ((*old & 0xFF00FF00) >> 8))
+                                + (alpha * (0x01000000 | ((new & 0x0000FF00) >> 8)));
+
+                            *old = (rb & 0x00FF00FF) | (ag & 0xFF00FF00);
+                        }
+                    }
+                    k += 1;
+                }
+            }
+        }
+    }
+
+    /// Draw a linear gradient in a rectangular region
+    #[allow(clippy::too_many_arguments)]
+    #[cfg(feature = "std")]
+    fn linear_gradient(
+        &mut self,
+        rect_x: i32,
+        rect_y: i32,
+        rect_width: u32,
+        rect_height: u32,
+        start_x: i32,
+        start_y: i32,
+        end_x: i32,
+        end_y: i32,
+        start_color: Color,
+        end_color: Color,
+    ) {
+        if (start_x == end_x) && (start_y == end_y) {
+            // Degenerate gradient
+            self.rect(rect_x, rect_y, rect_width, rect_height, start_color);
+        } else if start_x == end_x {
+            // Vertical gradient
+            for y in rect_y..(rect_y + rect_height as i32) {
+                let proj = (y as f64 - start_y as f64) / (end_y as f64 - start_y as f64);
+                let scale = if proj < 0.0 {
+                    0.0
+                } else if proj > 1.0 {
+                    1.0
+                } else {
+                    proj
+                };
+                let color = Color::interpolate(start_color, end_color, scale);
+                self.line(rect_x, y, rect_x + rect_width as i32 - 1, y, color);
+            }
+        } else if start_y == end_y {
+            // Horizontal gradient
+            for x in rect_x..(rect_x + rect_width as i32) {
+                let proj = (x as f64 - start_x as f64) / (end_x as f64 - start_x as f64);
+                let scale = if proj < 0.0 {
+                    0.0
+                } else if proj > 1.0 {
+                    1.0
+                } else {
+                    proj
+                };
+                let color = Color::interpolate(start_color, end_color, scale);
+                self.line(x, rect_y, x, rect_y + rect_height as i32 - 1, color);
+            }
+        } else {
+            // Non axis-aligned gradient
+            // Gradient vector
+            let grad_x = end_x as f64 - start_x as f64;
+            let grad_y = end_y as f64 - start_y as f64;
+            let grad_len = grad_x * grad_x + grad_y * grad_y;
+
+            for y in rect_y..(rect_y + rect_height as i32) {
+                for x in rect_x..(rect_x + rect_width as i32) {
+                    // Pixel vector
+                    let pix_x = x as f64 - start_x as f64;
+                    let pix_y = y as f64 - start_y as f64;
+                    // Scalar projection
+                    let proj = (pix_x * grad_x + pix_y * grad_y) / grad_len;
+                    // Saturation
+                    let scale = if proj < 0.0 {
+                        0.0
+                    } else if proj > 1.0 {
+                        1.0
+                    } else {
+                        proj
+                    };
+                    // Interpolation
+                    let color = Color::interpolate(start_color, end_color, scale);
+                    self.pixel(x, y, color);
+                }
+            }
+        }
+    }
+
+    /// Draw a rect with rounded corners
+    #[allow(clippy::too_many_arguments)]
+    fn rounded_rect(
+        &mut self,
+        x: i32,
+        y: i32,
+        w: u32,
+        h: u32,
+        radius: u32,
+        filled: bool,
+        color: Color,
+    ) {
+        let w = w as i32;
+        let h = h as i32;
+        let r = radius as i32;
+
+        if filled {
+            //Draw inside corners
+            self.arc(x + r, y + r, -r, 1 << 4 | 1 << 6, color);
+            self.arc(x + w - 1 - r, y + r, -r, 1 << 5 | 1 << 7, color);
+            self.arc(x + r, y + h - 1 - r, -r, 1 << 0 | 1 << 2, color);
+            self.arc(x + w - 1 - r, y + h - 1 - r, -r, 1 << 1 | 1 << 3, color);
+
+            // Draw inside rectangles
+            self.rect(x + r, y, (w - 1 - r * 2) as u32, r as u32 + 1, color);
+            self.rect(
+                x + r,
+                y + h - 1 - r,
+                (w - 1 - r * 2) as u32,
+                r as u32 + 1,
+                color,
+            );
+            self.rect(x, y + r + 1, w as u32, (h - 2 - r * 2) as u32, color);
+        } else {
+            //Draw outside corners
+            self.arc(x + r, y + r, r, 1 << 4 | 1 << 6, color);
+            self.arc(x + w - 1 - r, y + r, r, 1 << 5 | 1 << 7, color);
+            self.arc(x + r, y + h - 1 - r, r, 1 << 0 | 1 << 2, color);
+            self.arc(x + w - 1 - r, y + h - 1 - r, r, 1 << 1 | 1 << 3, color);
+
+            // Draw outside rectangles
+            self.rect(x + r + 1, y, (w - 2 - r * 2) as u32, 1, color);
+            self.rect(x + r + 1, y + h - 1, (w - 2 - r * 2) as u32, 1, color);
+            self.rect(x, y + r + 1, 1, (h - 2 - r * 2) as u32, color);
+            self.rect(x + w - 1, y + r + 1, 1, (h - 2 - r * 2) as u32, color);
+        }
+    }
+
+    /// Draws antialiased line
+    #[cfg(feature = "std")]
+    fn wu_line(&mut self, x0: i32, y0: i32, x1: i32, y1: i32, color: Color) {
+        //adapted from https://rosettacode.org/wiki/Xiaolin_Wu's_line_algorithm#C.23
+        let mut x0 = x0 as f64;
+        let mut y0 = y0 as f64;
+        let mut x1 = x1 as f64;
+        let mut y1 = y1 as f64;
+        let r = color.r();
+        let g = color.g();
+        let b = color.b();
+        let a = color.a() as f64;
+
+        fn ipart(x: f64) -> i32 {
+            x.trunc() as i32
+        }
+
+        fn fpart(x: f64) -> f64 {
+            if x < 0.0 {
+                return 1.0 - (x - x.floor());
+            }
+            x - x.floor()
+        }
+
+        fn rfpart(x: f64) -> f64 {
+            1.0 - fpart(x)
+        }
+
+        fn chkalpha(mut alpha: f64) -> u8 {
+            if alpha > 255.0 {
+                alpha = 255.0
+            };
+            if alpha < 0.0 {
+                alpha = 0.0
+            };
+            alpha as u8
+        }
+
+        let steep: bool = (y1 - y0).abs() > (x1 - x0).abs();
+        let mut temp;
+        if steep {
+            temp = x0;
+            x0 = y0;
+            y0 = temp;
+            temp = x1;
+            x1 = y1;
+            y1 = temp;
+        }
+        if x0 > x1 {
+            temp = x0;
+            x0 = x1;
+            x1 = temp;
+            temp = y0;
+            y0 = y1;
+            y1 = temp;
+        }
+        let dx = x1 - x0;
+        let dy = y1 - y0;
+        let gradient = dy / dx;
+
+        let mut xend: f64 = x0.round();
+        let mut yend: f64 = y0 + gradient * (xend - x0);
+        let mut xgap: f64 = rfpart(x0 + 0.5);
+        let xpixel1 = xend as i32;
+        let ypixel1 = ipart(yend);
+
+        if steep {
+            self.pixel(
+                ypixel1,
+                xpixel1,
+                Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
+            );
+            self.pixel(
+                ypixel1 + 1,
+                xpixel1,
+                Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
+            );
+        } else {
+            self.pixel(
+                xpixel1,
+                ypixel1,
+                Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
+            );
+            self.pixel(
+                xpixel1 + 1,
+                ypixel1,
+                Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
+            );
+        }
+        let mut intery: f64 = yend + gradient;
+        xend = x1.round();
+        yend = y1 + gradient * (xend - x1);
+        xgap = fpart(x1 + 0.5);
+        let xpixel2 = xend as i32;
+        let ypixel2 = ipart(yend) ;
+        if steep {
+            self.pixel(
+                ypixel2,
+                xpixel2,
+                Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
+            );
+            self.pixel(
+                ypixel2 + 1,
+                xpixel2,
+                Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
+            );
+        } else {
+            self.pixel(
+                xpixel2,
+                ypixel2,
+                Color::rgba(r, g, b, chkalpha(rfpart(yend) * xgap * a)),
+            );
+            self.pixel(
+                xpixel2 + 1,
+                ypixel2,
+                Color::rgba(r, g, b, chkalpha(fpart(yend) * xgap * a)),
+            );
+        }
+        if steep {
+            for x in (xpixel1 + 1)..(xpixel2) {
+                self.pixel(
+                    ipart(intery),
+                    x,
+                    Color::rgba(r, g, b, chkalpha(a * rfpart(intery))),
+                );
+                self.pixel(
+                    ipart(intery) + 1,
+                    x,
+                    Color::rgba(r, g, b, chkalpha(a * fpart(intery))),
+                );
+                intery += gradient;
+            }
+        } else {
+            for x in (xpixel1 + 1)..(xpixel2) {
+                self.pixel(
+                    x,
+                    ipart(intery),
+                    Color::rgba(r, g, b, chkalpha(a * rfpart(intery))),
+                );
+                self.pixel(
+                    x,
+                    ipart(intery) + 1,
+                    Color::rgba(r, g, b, chkalpha(a * fpart(intery))),
+                );
+                intery += gradient;
+            }
+        }
+    }
+
+    ///Draws antialiased circle
+    #[cfg(feature = "std")]
+    fn wu_circle(&mut self, x0: i32, y0: i32, radius: i32, color: Color) {
+        let r = color.r();
+        let g = color.g();
+        let b = color.b();
+        let a = color.a();
+        let mut y = 0;
+        let mut x = radius;
+        let mut d = 0_f64;
+
+        self.pixel(x0 + x, y0 + y, color);
+        self.pixel(x0 - x, y0 - y, color);
+        self.pixel(x0 + y, y0 - x, color);
+        self.pixel(x0 - y, y0 + x, color);
+
+        while x > y {
+            let di = dist(radius, y);
+            if di < d {
+                x -= 1;
+            }
+            let col = Color::rgba(r, g, b, (a as f64 * (1.0 - di)) as u8);
+            let col2 = Color::rgba(r, g, b, (a as f64 * di) as u8);
+
+            self.pixel(x0 + x, y0 + y, col);
+            self.pixel(x0 + x - 1, y0 + y, col2); //-
+            self.pixel(x0 - x, y0 + y, col);
+            self.pixel(x0 - x + 1, y0 + y, col2); //+
+            self.pixel(x0 + x, y0 - y, col);
+            self.pixel(x0 + x - 1, y0 - y, col2); //-
+            self.pixel(x0 - x, y0 - y, col);
+            self.pixel(x0 - x + 1, y0 - y, col2); //+
+
+            self.pixel(x0 + y, y0 + x, col);
+            self.pixel(x0 + y, y0 + x - 1, col2);
+            self.pixel(x0 - y, y0 + x, col);
+            self.pixel(x0 - y, y0 + x - 1, col2);
+            self.pixel(x0 + y, y0 - x, col);
+            self.pixel(x0 + y, y0 - x + 1, col2);
+            self.pixel(x0 - y, y0 - x, col);
+            self.pixel(x0 - y, y0 - x + 1, col2);
+            d = di;
+            y += 1;
+        }
+
+        fn dist(r: i32, y: i32) -> f64 {
+            let x: f64 = ((r * r - y * y) as f64).sqrt();
+            x.ceil() - x
+        }
+    }
+
+    ///Gets pixel color at x,y position
+    fn getpixel(&self, x: i32, y: i32) -> Color {
+        let p = (self.width() as i32 * y + x) as usize;
+        if p >= self.data().len() {
+            return Color::rgba(0, 0, 0, 0);
+        }
+        self.data()[p]
+    }
+}

third-party/vendor/orbclient/src/sys/orbital.rs

@@ -0,0 +1,440 @@
+// SPDX-License-Identifier: MIT
+
+use std::cell::Cell;
+use std::fs::File;
+use std::io::{Read, Write};
+use std::os::unix::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
+use std::{env, mem, slice, thread};
+
+use libredox::{call as redox, flag};
+
+use crate::color::Color;
+use crate::event::{Event, EVENT_RESIZE};
+use crate::renderer::Renderer;
+use crate::Mode;
+use crate::WindowFlag;
+
+pub fn get_display_size() -> Result<(u32, u32), String> {
+    let display_path = env::var("DISPLAY").or(Err("DISPLAY not set"))?;
+    match File::open(&display_path) {
+        Ok(display) => {
+            let mut buf: [u8; 4096] = [0; 4096];
+            let count = redox::fpath(display.as_raw_fd() as usize, &mut buf)
+                .map_err(|err| format!("{}", err))?;
+            let path = unsafe { String::from_utf8_unchecked(Vec::from(&buf[..count])) };
+            let res = path.split(":").nth(1).unwrap_or("");
+            let width = res
+                .split("/")
+                .nth(1)
+                .unwrap_or("")
+                .parse::<u32>()
+                .unwrap_or(0);
+            let height = res
+                .split("/")
+                .nth(2)
+                .unwrap_or("")
+                .parse::<u32>()
+                .unwrap_or(0);
+            Ok((width, height))
+        }
+        Err(err) => Err(format!("{}", err)),
+    }
+}
+
+/// A window
+pub struct Window {
+    /// The x coordinate of the window
+    x: i32,
+    /// The y coordinate of the window
+    y: i32,
+    /// The width of the window
+    w: u32,
+    /// The height of the window
+    h: u32,
+    /// The title of the window
+    t: String,
+    /// True if the window should not wait for events
+    window_async: bool,
+    /// True if the window can be resized
+    resizable: bool,
+    /// Drawing mode
+    mode: Cell<Mode>,
+    /// The input scheme
+    file_opt: Option<File>,
+    /// Window data
+    data_opt: Option<&'static mut [Color]>,
+}
+
+impl Renderer for Window {
+    /// Get width
+    fn width(&self) -> u32 {
+        self.w
+    }
+
+    /// Get height
+    fn height(&self) -> u32 {
+        self.h
+    }
+
+    /// Access pixel buffer
+    fn data(&self) -> &[Color] {
+        self.data_opt.as_ref().unwrap()
+    }
+
+    /// Access pixel buffer mutably
+    fn data_mut(&mut self) -> &mut [Color] {
+        self.data_opt.as_mut().unwrap()
+    }
+
+    /// Flip the buffer
+    fn sync(&mut self) -> bool {
+        self.file_mut().sync_data().is_ok()
+    }
+
+    /// Set/get mode
+    fn mode(&self) -> &Cell<Mode> {
+        &self.mode
+    }
+}
+
+impl Window {
+    /// Create a new window
+    pub fn new(x: i32, y: i32, w: u32, h: u32, title: &str) -> Option<Self> {
+        Window::new_flags(x, y, w, h, title, &[])
+    }
+
+    /// Create a new window with flags
+    pub fn new_flags(
+        x: i32,
+        y: i32,
+        w: u32,
+        h: u32,
+        title: &str,
+        flags: &[WindowFlag],
+    ) -> Option<Self> {
+        let mut flag_str = String::new();
+
+        let mut window_async = false;
+        let mut resizable = false;
+        for &flag in flags.iter() {
+            match flag {
+                WindowFlag::Async => {
+                    window_async = true;
+                    flag_str.push('a');
+                }
+                WindowFlag::Back => flag_str.push('b'),
+                WindowFlag::Front => flag_str.push('f'),
+                WindowFlag::Borderless => flag_str.push('l'),
+                WindowFlag::Resizable => {
+                    resizable = true;
+                    flag_str.push('r');
+                }
+                WindowFlag::Transparent => flag_str.push('t'),
+                WindowFlag::Unclosable => flag_str.push('u'),
+            }
+        }
+
+        if let Ok(file) = File::open(&format!(
+            "orbital:{}/{}/{}/{}/{}/{}",
+            flag_str, x, y, w, h, title
+        )) {
+            let mut window = Window {
+                x,
+                y,
+                w,
+                h,
+                t: title.to_string(),
+                window_async,
+                resizable,
+                mode: Cell::new(Mode::Blend),
+                file_opt: Some(file),
+                data_opt: None,
+            };
+            unsafe { window.remap(); }
+            Some(window)
+        } else {
+            None
+        }
+    }
+
+    pub fn clipboard(&self) -> String {
+        let mut text = String::new();
+        let window_fd = self.file().as_raw_fd();
+        if let Ok(clipboard_fd) = redox::dup(window_fd as usize, b"clipboard") {
+            let mut clipboard_file = unsafe { File::from_raw_fd(clipboard_fd as RawFd) };
+            let _ = clipboard_file.read_to_string(&mut text);
+        }
+        text
+    }
+
+    pub fn set_clipboard(&mut self, text: &str) {
+        let window_fd = self.file().as_raw_fd();
+        if let Ok(clipboard_fd) = redox::dup(window_fd as usize, b"clipboard") {
+            let mut clipboard_file = unsafe { File::from_raw_fd(clipboard_fd as RawFd) };
+            let _ = clipboard_file.write(text.as_bytes());
+        }
+    }
+
+    /// Not yet available on Redox OS.
+    pub fn pop_drop_content(&self) -> Option<String> {
+        None
+    }
+
+    // TODO: Replace with smarter mechanism, maybe a move event?
+    pub fn sync_path(&mut self) {
+        let mut buf: [u8; 4096] = [0; 4096];
+        if let Ok(count) = redox::fpath(self.file().as_raw_fd() as usize, &mut buf) {
+            let path = unsafe { String::from_utf8_unchecked(Vec::from(&buf[..count])) };
+            // orbital:/x/y/w/h/t
+            let mut parts = path.split('/');
+            if let Some(flags) = parts.next() {
+                self.window_async = flags.contains('a');
+                self.resizable = flags.contains('r');
+            }
+            if let Some(x) = parts.next() {
+                self.x = x.parse::<i32>().unwrap_or(0);
+            }
+            if let Some(y) = parts.next() {
+                self.y = y.parse::<i32>().unwrap_or(0);
+            }
+            if let Some(w) = parts.next() {
+                self.w = w.parse::<u32>().unwrap_or(0);
+            }
+            if let Some(h) = parts.next() {
+                self.h = h.parse::<u32>().unwrap_or(0);
+            }
+            if let Some(t) = parts.next() {
+                self.t = t.to_string();
+            }
+        }
+    }
+
+    /// Get x
+    // TODO: Sync with window movements
+    pub fn x(&self) -> i32 {
+        self.x
+    }
+
+    /// Get y
+    // TODO: Sync with window movements
+    pub fn y(&self) -> i32 {
+        self.y
+    }
+
+    /// Get title
+    pub fn title(&self) -> String {
+        self.t.clone()
+    }
+
+    /// Get async
+    pub fn is_async(&self) -> bool {
+        self.window_async
+    }
+
+    /// Set async
+    pub fn set_async(&mut self, is_async: bool) {
+        self.window_async = is_async;
+        let _ = self.file_mut().write(if is_async { b"A,1" } else { b"A,0" });
+    }
+
+    /// Set cursor visibility
+    pub fn set_mouse_cursor(&mut self, visible: bool) {
+        let _ = self.file_mut().write(if visible { b"M,C,1" } else { b"M,C,0" });
+    }
+
+    /// Set mouse grabbing
+    pub fn set_mouse_grab(&mut self, grab: bool) {
+        let _ = self.file_mut().write(if grab { b"M,G,1" } else { b"M,G,0" });
+    }
+
+    /// Set mouse relative mode
+    pub fn set_mouse_relative(&mut self, relative: bool) {
+        let _ = self.file_mut().write(if relative { b"M,R,1" } else { b"M,R,0" });
+    }
+
+    /// Set position
+    pub fn set_pos(&mut self, x: i32, y: i32) {
+        let _ = self.file_mut().write(&format!("P,{},{}", x, y).as_bytes());
+        self.sync_path();
+    }
+
+    /// Set size
+    pub fn set_size(&mut self, width: u32, height: u32) {
+        //TODO: Improve safety and reliability
+        unsafe { self.unmap(); }
+
+        let _ = self
+            .file_mut()
+            .write(&format!("S,{},{}", width, height).as_bytes());
+        self.sync_path();
+
+        unsafe { self.remap(); }
+    }
+
+    /// Set title
+    pub fn set_title(&mut self, title: &str) {
+        let _ = self.file_mut().write(&format!("T,{}", title).as_bytes());
+        self.sync_path();
+    }
+
+    /// Blocking iterator over events
+    pub fn events(&mut self) -> EventIter {
+        let mut iter = EventIter {
+            extra: None,
+            events: [Event::new(); 16],
+            i: 0,
+            count: 0,
+        };
+
+        'blocking: loop {
+            if iter.count == iter.events.len() {
+                if iter.extra.is_none() {
+                    iter.extra = Some(Vec::with_capacity(32));
+                }
+                iter.extra.as_mut().unwrap().extend_from_slice(&iter.events);
+                iter.count = 0;
+            }
+            let bytes = unsafe {
+                slice::from_raw_parts_mut(
+                    iter.events[iter.count..].as_mut_ptr() as *mut u8,
+                    iter.events[iter.count..].len() * mem::size_of::<Event>(),
+                )
+            };
+            match self.file_mut().read(bytes) {
+                Ok(0) => {
+                    if !self.window_async && iter.extra.is_none() && iter.count == 0 {
+                        thread::yield_now();
+                    } else {
+                        break 'blocking;
+                    }
+                }
+                Ok(count) => {
+                    let count = count / mem::size_of::<Event>();
+                    let events = &iter.events[iter.count..][..count];
+                    iter.count += count;
+
+                    if self.resizable {
+                        let mut resize = None;
+                        for event in events {
+                            let event = *event;
+                            if event.code == EVENT_RESIZE {
+                                resize = Some((event.a as u32, event.b as u32));
+                            }
+                        }
+                        if let Some((w, h)) = resize {
+                            self.set_size(w, h);
+                        }
+                    }
+                    if !self.window_async {
+                        // Synchronous windows are blocking, can't attempt another read
+                        break 'blocking;
+                    }
+                }
+                Err(_) => break 'blocking,
+            }
+        }
+
+        iter
+    }
+
+    fn file(&self) -> &File {
+        self.file_opt.as_ref().unwrap()
+    }
+
+    fn file_mut(&mut self) -> &mut File {
+        self.file_opt.as_mut().unwrap()
+    }
+
+    unsafe fn remap(&mut self) {
+        self.unmap();
+
+        let size = (self.w * self.h) as usize;
+        let address = redox::mmap(redox::MmapArgs {
+            fd: self.file().as_raw_fd() as usize,
+            offset: 0,
+            length: size * mem::size_of::<Color>(),
+            flags: flag::MAP_SHARED,
+            prot: flag::PROT_READ | flag::PROT_WRITE,
+            addr: core::ptr::null_mut(),
+        }).expect("orbclient: failed to map memory");
+
+        self.data_opt = Some(
+            slice::from_raw_parts_mut(address.cast::<Color>(), size)
+        );
+    }
+
+    unsafe fn unmap(&mut self) {
+        if let Some(data) = self.data_opt.take() {
+            redox::munmap(
+                data.as_mut_ptr().cast(),
+                data.len() * mem::size_of::<Color>(),
+            ).expect("orbclient: failed to unmap memory");
+        }
+    }
+
+}
+
+impl Drop for Window {
+    fn drop(&mut self) {
+        unsafe { self.unmap(); }
+    }
+}
+
+impl AsRawFd for Window {
+    fn as_raw_fd(&self) -> RawFd {
+        self.file().as_raw_fd()
+    }
+}
+
+impl FromRawFd for Window {
+    unsafe fn from_raw_fd(fd: RawFd) -> Window {
+        let mut window = Window {
+            x: 0,
+            y: 0,
+            w: 0,
+            h: 0,
+            t: String::new(),
+            window_async: false,
+            resizable: false,
+            mode: Cell::new(Mode::Blend),
+            file_opt: Some(File::from_raw_fd(fd)),
+            data_opt: None,
+        };
+        window.sync_path();
+        window.remap();
+        window
+    }
+}
+
+impl IntoRawFd for Window {
+    fn into_raw_fd(mut self) -> RawFd {
+        self.file_opt.take().unwrap().into_raw_fd()
+    }
+}
+
+/// Event iterator
+pub struct EventIter {
+    extra: Option<Vec<Event>>,
+    events: [Event; 16],
+    i: usize,
+    count: usize,
+}
+
+impl Iterator for EventIter {
+    type Item = Event;
+    fn next(&mut self) -> Option<Event> {
+        let mut i = self.i;
+        if let Some(ref mut extra) = self.extra {
+            if i < extra.len() {
+                self.i += 1;
+                return Some(extra[i]);
+            }
+            i -= extra.len();
+        }
+        if i < self.count {
+            self.i += 1;
+            return Some(self.events[i]);
+        }
+        None
+    }
+}

third-party/vendor/orbclient/src/sys/sdl2.rs

@@ -0,0 +1,624 @@
+// SPDX-License-Identifier: MIT
+
+use std::cell::{Cell, RefCell};
+use std::sync::atomic::{AtomicUsize, Ordering};
+use std::{mem, ptr, slice};
+
+use crate::color::Color;
+use crate::event::*;
+use crate::renderer::Renderer;
+use crate::Mode;
+use crate::WindowFlag;
+
+static SDL_USAGES: AtomicUsize = AtomicUsize::new(0);
+/// SDL2 Context
+static mut SDL_CTX: *mut sdl2::Sdl = ptr::null_mut();
+/// Video Context
+static mut VIDEO_CTX: *mut sdl2::VideoSubsystem = ptr::null_mut();
+/// Event Pump
+static mut EVENT_PUMP: *mut sdl2::EventPump = ptr::null_mut();
+
+//Call this when the CTX needs to be used is created
+#[inline]
+unsafe fn init() {
+    if SDL_USAGES.fetch_add(1, Ordering::Relaxed) == 0 {
+        SDL_CTX = Box::into_raw(Box::new(sdl2::init().unwrap()));
+        VIDEO_CTX = Box::into_raw(Box::new((*SDL_CTX).video().unwrap()));
+        EVENT_PUMP = Box::into_raw(Box::new((*SDL_CTX).event_pump().unwrap()));
+    }
+}
+
+// Call this when drop the sdl2 CTX.
+#[inline]
+unsafe fn cleanup() {
+    if SDL_USAGES.fetch_sub(1, Ordering::Relaxed) == 0 {
+        return;
+    }
+
+    drop(Box::from_raw(SDL_CTX));
+    drop(Box::from_raw(VIDEO_CTX));
+    drop(Box::from_raw(EVENT_PUMP));
+}
+
+/// Return the (width, height) of the display in pixels
+pub fn get_display_size() -> Result<(u32, u32), String> {
+    unsafe { init() };
+    unsafe { &*VIDEO_CTX }
+        .display_bounds(0)
+        .map(|rect| (rect.width(), rect.height()))
+}
+
+/// A window
+#[allow(dead_code)]
+pub struct Window {
+    /// The x coordinate of the window
+    x: i32,
+    /// The y coordinate of the window
+    y: i32,
+    /// The width of the window
+    w: u32,
+    /// The height of the window
+    h: u32,
+    /// The title of the window
+    t: String,
+    /// True if the window should not wait for events
+    window_async: bool,
+    /// Drawing mode
+    mode: Cell<Mode>,
+    /// The inner renderer
+    inner: sdl2::render::WindowCanvas,
+    /// Mouse in relative mode
+    mouse_relative: bool,
+    /// Content of the last drop (file | text) operation
+    drop_content: RefCell<Option<String>>,
+}
+
+impl Drop for Window {
+    fn drop(&mut self) {
+        unsafe {
+            cleanup();
+        }
+    }
+}
+
+impl Renderer for Window {
+    /// Get width
+    fn width(&self) -> u32 {
+        self.w
+    }
+
+    /// Get height
+    fn height(&self) -> u32 {
+        self.h
+    }
+
+    /// Access pixel buffer
+    fn data(&self) -> &[Color] {
+        let window = self.inner.window();
+        let surface = window.surface(unsafe { &*EVENT_PUMP }).unwrap();
+        let bytes = surface.without_lock().unwrap();
+        unsafe {
+            slice::from_raw_parts(
+                bytes.as_ptr() as *const Color,
+                bytes.len() / mem::size_of::<Color>(),
+            )
+        }
+    }
+
+    /// Access pixel buffer mutably
+    fn data_mut(&mut self) -> &mut [Color] {
+        let window = self.inner.window_mut();
+        let mut surface = window.surface(unsafe { &*EVENT_PUMP }).unwrap();
+        let bytes = surface.without_lock_mut().unwrap();
+        unsafe {
+            slice::from_raw_parts_mut(
+                bytes.as_mut_ptr() as *mut Color,
+                bytes.len() / mem::size_of::<Color>(),
+            )
+        }
+    }
+
+    /// Flip the window buffer
+    fn sync(&mut self) -> bool {
+        self.inner.present();
+        true
+    }
+
+    /// Set/get mode
+    fn mode(&self) -> &Cell<Mode> {
+        &self.mode
+    }
+}
+
+impl Window {
+    /// Create a new window
+    pub fn new(x: i32, y: i32, w: u32, h: u32, title: &str) -> Option<Self> {
+        Window::new_flags(x, y, w, h, title, &[])
+    }
+
+    /// Create a new window with flags
+    pub fn new_flags(
+        x: i32,
+        y: i32,
+        w: u32,
+        h: u32,
+        title: &str,
+        flags: &[WindowFlag],
+    ) -> Option<Self> {
+        //Insure that init has been called
+        unsafe { init() };
+
+        let mut window_async = false;
+        //TODO: Use z-order
+        let mut _back = false;
+        let mut _front = false;
+        let mut borderless = false;
+        let mut resizable = false;
+        //TODO: Transparent
+        let mut _transparent = false;
+        //TODO: Hide exit button
+        let mut _unclosable = false;
+        for &flag in flags.iter() {
+            match flag {
+                WindowFlag::Async => window_async = true,
+                WindowFlag::Back => _back = true,
+                WindowFlag::Front => _front = true,
+                WindowFlag::Borderless => borderless = true,
+                WindowFlag::Resizable => resizable = true,
+                WindowFlag::Transparent => _transparent = true,
+                WindowFlag::Unclosable => _unclosable = true,
+            }
+        }
+
+        let mut builder = unsafe { &*VIDEO_CTX }.window(title, w, h);
+
+        {
+            builder.allow_highdpi();
+        }
+
+        if borderless {
+            builder.borderless();
+        }
+
+        if resizable {
+            builder.resizable();
+        }
+
+        if x >= 0 || y >= 0 {
+            builder.position(x, y);
+        }
+
+        match builder.build() {
+            Ok(window) => Some(Window {
+                x,
+                y,
+                w,
+                h,
+                t: title.to_string(),
+                window_async,
+                mode: Cell::new(Mode::Blend),
+                inner: window.into_canvas().software().build().unwrap(),
+                mouse_relative: false,
+                drop_content: RefCell::new(None),
+            }),
+            Err(_) => None,
+        }
+    }
+
+    pub fn event_sender(&self) -> sdl2::event::EventSender {
+        unsafe { &mut *SDL_CTX }.event().unwrap().event_sender()
+    }
+
+    pub fn clipboard(&self) -> String {
+        let result = unsafe { &*VIDEO_CTX }.clipboard().clipboard_text();
+
+        match result {
+            Ok(value) => return value,
+            Err(message) => println!("{}", message),
+        }
+
+        String::default()
+    }
+
+    pub fn set_clipboard(&mut self, text: &str) {
+        let result = unsafe { &*VIDEO_CTX }.clipboard().set_clipboard_text(text);
+
+        if let Err(message) = result {
+            println!("{}", message);
+        }
+    }
+
+    /// Pops the content of the last drop event from the window.
+    pub fn pop_drop_content(&self) -> Option<String> {
+        let result = self.drop_content.borrow().clone();
+        *self.drop_content.borrow_mut() = None;
+
+        result
+    }
+
+    pub fn sync_path(&mut self) {
+        let window = self.inner.window();
+        let pos = window.position();
+        let size = window.size();
+        let title = window.title();
+        self.x = pos.0;
+        self.y = pos.1;
+        self.w = size.0;
+        self.h = size.1;
+        self.t = title.to_string();
+    }
+
+    /// Get x
+    // TODO: Sync with window movements
+    pub fn x(&self) -> i32 {
+        self.x
+    }
+
+    /// Get y
+    // TODO: Sync with window movements
+    pub fn y(&self) -> i32 {
+        self.y
+    }
+
+    /// Get title
+    pub fn title(&self) -> String {
+        self.t.clone()
+    }
+
+    /// Get async
+    pub fn is_async(&self) -> bool {
+        self.window_async
+    }
+
+    /// Set async
+    pub fn set_async(&mut self, is_async: bool) {
+        self.window_async = is_async;
+    }
+
+    /// Set cursor visibility
+    pub fn set_mouse_cursor(&mut self, visible: bool) {
+        unsafe { &mut *SDL_CTX }.mouse().show_cursor(visible);
+    }
+
+    /// Set mouse grabbing
+    pub fn set_mouse_grab(&mut self, grab: bool) {
+        unsafe { &mut *SDL_CTX }.mouse().capture(grab);
+    }
+
+    /// Set mouse relative mode
+    pub fn set_mouse_relative(&mut self, relative: bool) {
+        unsafe { &mut *SDL_CTX }
+            .mouse()
+            .set_relative_mouse_mode(relative);
+        self.mouse_relative = relative;
+    }
+
+    /// Set position
+    pub fn set_pos(&mut self, x: i32, y: i32) {
+        self.inner.window_mut().set_position(
+            sdl2::video::WindowPos::Positioned(x),
+            sdl2::video::WindowPos::Positioned(y),
+        );
+        self.sync_path();
+    }
+
+    /// Set size
+    pub fn set_size(&mut self, width: u32, height: u32) {
+        let _ = self.inner.window_mut().set_size(width, height);
+        self.sync_path();
+    }
+
+    /// Set title
+    pub fn set_title(&mut self, title: &str) {
+        let _ = self.inner.window_mut().set_title(title);
+        self.sync_path();
+    }
+
+    fn convert_scancode(
+        &self,
+        scancode_option: Option<sdl2::keyboard::Scancode>,
+        shift: bool,
+    ) -> Option<(char, u8)> {
+        if let Some(scancode) = scancode_option {
+            match scancode {
+                sdl2::keyboard::Scancode::A => Some((if shift { 'A' } else { 'a' }, K_A)),
+                sdl2::keyboard::Scancode::B => Some((if shift { 'B' } else { 'b' }, K_B)),
+                sdl2::keyboard::Scancode::C => Some((if shift { 'C' } else { 'c' }, K_C)),
+                sdl2::keyboard::Scancode::D => Some((if shift { 'D' } else { 'd' }, K_D)),
+                sdl2::keyboard::Scancode::E => Some((if shift { 'E' } else { 'e' }, K_E)),
+                sdl2::keyboard::Scancode::F => Some((if shift { 'F' } else { 'f' }, K_F)),
+                sdl2::keyboard::Scancode::G => Some((if shift { 'G' } else { 'g' }, K_G)),
+                sdl2::keyboard::Scancode::H => Some((if shift { 'H' } else { 'h' }, K_H)),
+                sdl2::keyboard::Scancode::I => Some((if shift { 'I' } else { 'i' }, K_I)),
+                sdl2::keyboard::Scancode::J => Some((if shift { 'J' } else { 'j' }, K_J)),
+                sdl2::keyboard::Scancode::K => Some((if shift { 'K' } else { 'k' }, K_K)),
+                sdl2::keyboard::Scancode::L => Some((if shift { 'L' } else { 'l' }, K_L)),
+                sdl2::keyboard::Scancode::M => Some((if shift { 'M' } else { 'm' }, K_M)),
+                sdl2::keyboard::Scancode::N => Some((if shift { 'N' } else { 'n' }, K_N)),
+                sdl2::keyboard::Scancode::O => Some((if shift { 'O' } else { 'o' }, K_O)),
+                sdl2::keyboard::Scancode::P => Some((if shift { 'P' } else { 'p' }, K_P)),
+                sdl2::keyboard::Scancode::Q => Some((if shift { 'Q' } else { 'q' }, K_Q)),
+                sdl2::keyboard::Scancode::R => Some((if shift { 'R' } else { 'r' }, K_R)),
+                sdl2::keyboard::Scancode::S => Some((if shift { 'S' } else { 's' }, K_S)),
+                sdl2::keyboard::Scancode::T => Some((if shift { 'T' } else { 't' }, K_T)),
+                sdl2::keyboard::Scancode::U => Some((if shift { 'U' } else { 'u' }, K_U)),
+                sdl2::keyboard::Scancode::V => Some((if shift { 'V' } else { 'v' }, K_V)),
+                sdl2::keyboard::Scancode::W => Some((if shift { 'W' } else { 'w' }, K_W)),
+                sdl2::keyboard::Scancode::X => Some((if shift { 'X' } else { 'x' }, K_X)),
+                sdl2::keyboard::Scancode::Y => Some((if shift { 'Y' } else { 'y' }, K_Y)),
+                sdl2::keyboard::Scancode::Z => Some((if shift { 'Z' } else { 'z' }, K_Z)),
+                sdl2::keyboard::Scancode::Num0 => Some((if shift { ')' } else { '0' }, K_0)),
+                sdl2::keyboard::Scancode::Num1 => Some((if shift { '!' } else { '1' }, K_1)),
+                sdl2::keyboard::Scancode::Num2 => Some((if shift { '@' } else { '2' }, K_2)),
+                sdl2::keyboard::Scancode::Num3 => Some((if shift { '#' } else { '3' }, K_3)),
+                sdl2::keyboard::Scancode::Num4 => Some((if shift { '$' } else { '4' }, K_4)),
+                sdl2::keyboard::Scancode::Num5 => Some((if shift { '%' } else { '5' }, K_5)),
+                sdl2::keyboard::Scancode::Num6 => Some((if shift { '^' } else { '6' }, K_6)),
+                sdl2::keyboard::Scancode::Num7 => Some((if shift { '&' } else { '7' }, K_7)),
+                sdl2::keyboard::Scancode::Num8 => Some((if shift { '*' } else { '8' }, K_8)),
+                sdl2::keyboard::Scancode::Num9 => Some((if shift { '(' } else { '9' }, K_9)),
+                sdl2::keyboard::Scancode::Grave => Some((if shift { '~' } else { '`' }, K_TICK)),
+                sdl2::keyboard::Scancode::Minus => Some((if shift { '_' } else { '-' }, K_MINUS)),
+                sdl2::keyboard::Scancode::Equals => Some((if shift { '+' } else { '=' }, K_EQUALS)),
+                sdl2::keyboard::Scancode::LeftBracket => {
+                    Some((if shift { '{' } else { '[' }, K_BRACE_OPEN))
+                }
+                sdl2::keyboard::Scancode::RightBracket => {
+                    Some((if shift { '}' } else { ']' }, K_BRACE_CLOSE))
+                }
+                sdl2::keyboard::Scancode::Backslash => {
+                    Some((if shift { '|' } else { '\\' }, K_BACKSLASH))
+                }
+                sdl2::keyboard::Scancode::Semicolon => {
+                    Some((if shift { ':' } else { ';' }, K_SEMICOLON))
+                }
+                sdl2::keyboard::Scancode::Apostrophe => {
+                    Some((if shift { '"' } else { '\'' }, K_QUOTE))
+                }
+                sdl2::keyboard::Scancode::Comma => Some((if shift { '<' } else { ',' }, K_COMMA)),
+                sdl2::keyboard::Scancode::Period => Some((if shift { '>' } else { '.' }, K_PERIOD)),
+                sdl2::keyboard::Scancode::Slash => Some((if shift { '?' } else { '/' }, K_SLASH)),
+                sdl2::keyboard::Scancode::Space => Some((' ', K_SPACE)),
+                sdl2::keyboard::Scancode::Backspace => Some(('\0', K_BKSP)),
+                sdl2::keyboard::Scancode::Tab => Some(('\t', K_TAB)),
+                sdl2::keyboard::Scancode::LCtrl => Some(('\0', K_CTRL)),
+                sdl2::keyboard::Scancode::RCtrl => Some(('\0', K_CTRL)),
+                sdl2::keyboard::Scancode::LAlt => Some(('\0', K_ALT)),
+                sdl2::keyboard::Scancode::RAlt => Some(('\0', K_ALT)),
+                sdl2::keyboard::Scancode::Return => Some(('\n', K_ENTER)),
+                sdl2::keyboard::Scancode::Escape => Some(('\x1B', K_ESC)),
+                sdl2::keyboard::Scancode::F1 => Some(('\0', K_F1)),
+                sdl2::keyboard::Scancode::F2 => Some(('\0', K_F2)),
+                sdl2::keyboard::Scancode::F3 => Some(('\0', K_F3)),
+                sdl2::keyboard::Scancode::F4 => Some(('\0', K_F4)),
+                sdl2::keyboard::Scancode::F5 => Some(('\0', K_F5)),
+                sdl2::keyboard::Scancode::F6 => Some(('\0', K_F6)),
+                sdl2::keyboard::Scancode::F7 => Some(('\0', K_F7)),
+                sdl2::keyboard::Scancode::F8 => Some(('\0', K_F8)),
+                sdl2::keyboard::Scancode::F9 => Some(('\0', K_F9)),
+                sdl2::keyboard::Scancode::F10 => Some(('\0', K_F10)),
+                sdl2::keyboard::Scancode::Home => Some(('\0', K_HOME)),
+                sdl2::keyboard::Scancode::LGui => Some(('\0', K_HOME)),
+                sdl2::keyboard::Scancode::Up => Some(('\0', K_UP)),
+                sdl2::keyboard::Scancode::PageUp => Some(('\0', K_PGUP)),
+                sdl2::keyboard::Scancode::Left => Some(('\0', K_LEFT)),
+                sdl2::keyboard::Scancode::Right => Some(('\0', K_RIGHT)),
+                sdl2::keyboard::Scancode::End => Some(('\0', K_END)),
+                sdl2::keyboard::Scancode::Down => Some(('\0', K_DOWN)),
+                sdl2::keyboard::Scancode::PageDown => Some(('\0', K_PGDN)),
+                sdl2::keyboard::Scancode::Delete => Some(('\0', K_DEL)),
+                sdl2::keyboard::Scancode::F11 => Some(('\0', K_F11)),
+                sdl2::keyboard::Scancode::F12 => Some(('\0', K_F12)),
+                sdl2::keyboard::Scancode::LShift => Some(('\0', K_LEFT_SHIFT)),
+                sdl2::keyboard::Scancode::RShift => Some(('\0', K_RIGHT_SHIFT)),
+                _ => None,
+            }
+        } else {
+            None
+        }
+    }
+
+    fn get_mouse_position(&self) -> (i32, i32) {
+        unsafe {
+            let p_x: *mut i32 = libc::malloc(mem::size_of::<i32>()) as *mut i32;
+            let p_y: *mut i32 = libc::malloc(mem::size_of::<i32>()) as *mut i32;
+            sdl2_sys::SDL_GetMouseState(p_x, p_y);
+
+            (*p_x, *p_y)
+        }
+    }
+
+    fn convert_event(&self, event: sdl2::event::Event) -> Vec<Event> {
+        let mut events = Vec::new();
+
+        let button_event = || -> Event {
+            let mouse = unsafe { &mut *EVENT_PUMP }.mouse_state();
+            ButtonEvent {
+                left: mouse.left(),
+                middle: mouse.middle(),
+                right: mouse.right(),
+            }
+            .to_event()
+        };
+
+        let mods = unsafe { &mut *SDL_CTX }.keyboard().mod_state();
+        let shift = mods.contains(sdl2::keyboard::Mod::CAPSMOD)
+            || mods.contains(sdl2::keyboard::Mod::LSHIFTMOD)
+            || mods.contains(sdl2::keyboard::Mod::RSHIFTMOD);
+
+        match event {
+            sdl2::event::Event::RenderTargetsReset { .. } => {
+                events.push(Event::new());
+            }
+            sdl2::event::Event::Window { win_event, .. } => match win_event {
+                sdl2::event::WindowEvent::Moved(x, y) => {
+                    events.push(MoveEvent { x, y }.to_event())
+                }
+                sdl2::event::WindowEvent::Resized(w, h) => events.push(
+                    ResizeEvent {
+                        width: w as u32,
+                        height: h as u32,
+                    }
+                    .to_event(),
+                ),
+                sdl2::event::WindowEvent::FocusGained => {
+                    events.push(FocusEvent { focused: true }.to_event())
+                }
+                sdl2::event::WindowEvent::FocusLost => {
+                    events.push(FocusEvent { focused: false }.to_event())
+                }
+                sdl2::event::WindowEvent::Enter => {
+                    events.push(HoverEvent { entered: true }.to_event())
+                }
+                sdl2::event::WindowEvent::Leave => {
+                    events.push(HoverEvent { entered: false }.to_event())
+                }
+                sdl2::event::WindowEvent::None => events.push(Event::new()),
+                _ => (),
+            },
+            sdl2::event::Event::ClipboardUpdate { .. } => {
+                events.push(ClipboardUpdateEvent.to_event())
+            }
+            sdl2::event::Event::MouseMotion {
+                x, y, xrel, yrel, ..
+            } => {
+                if self.mouse_relative {
+                    events.push(MouseRelativeEvent { dx: xrel, dy: yrel }.to_event())
+                } else {
+                    events.push(MouseEvent { x, y }.to_event())
+                }
+            }
+            sdl2::event::Event::MouseButtonDown { .. } => events.push(button_event()),
+            sdl2::event::Event::MouseButtonUp { .. } => events.push(button_event()),
+            sdl2::event::Event::MouseWheel { x, y, .. } => {
+                events.push(ScrollEvent { x, y }.to_event())
+            }
+            sdl2::event::Event::TextInput { text, .. } => {
+                for character in text.chars() {
+                    events.push(
+                        TextInputEvent {
+                            character,
+                        }
+                        .to_event(),
+                    );
+                }
+            }
+            sdl2::event::Event::KeyDown { scancode, .. } => {
+                if let Some(code) = self.convert_scancode(scancode, shift) {
+                    events.push(
+                        KeyEvent {
+                            character: code.0,
+                            scancode: code.1,
+                            pressed: true,
+                        }
+                        .to_event(),
+                    );
+                }
+            }
+            sdl2::event::Event::DropFile { filename, .. } => {
+                *self.drop_content.borrow_mut() = Some(filename);
+
+                let (x, y) = self.get_mouse_position();
+
+                events.push(MouseEvent { x, y }.to_event());
+
+                events.push(DropEvent { kind: DROP_FILE }.to_event())
+            }
+            sdl2::event::Event::DropText { filename, .. } => {
+                *self.drop_content.borrow_mut() = Some(filename);
+
+                let (x, y) = self.get_mouse_position();
+
+                events.push(MouseEvent { x, y }.to_event());
+                events.push(DropEvent { kind: DROP_TEXT }.to_event())
+            }
+            sdl2::event::Event::KeyUp { scancode, .. } => {
+                if let Some(code) = self.convert_scancode(scancode, shift) {
+                    events.push(
+                        KeyEvent {
+                            character: code.0,
+                            scancode: code.1,
+                            pressed: false,
+                        }
+                        .to_event(),
+                    );
+                }
+            }
+            sdl2::event::Event::Quit { .. } => events.push(QuitEvent.to_event()),
+            _ => (),
+        }
+
+        events
+    }
+
+    /// Blocking iterator over events
+    pub fn events(&mut self) -> EventIter {
+        let mut iter = EventIter {
+            events: [Event::new(); 16],
+            i: 0,
+            count: 0,
+        };
+
+        if !self.window_async {
+            let event = unsafe { &mut *EVENT_PUMP }.wait_event();
+            if let sdl2::event::Event::Window { .. } = event {
+                self.sync_path();
+            }
+            for converted_event in self.convert_event(event) {
+                if iter.count < iter.events.len() {
+                    iter.events[iter.count] = converted_event;
+                    iter.count += 1;
+                } else {
+                    break;
+                }
+            }
+        }
+
+        while let Some(event) = unsafe { &mut *EVENT_PUMP }.poll_event() {
+            if let sdl2::event::Event::Window { .. } = event {
+                self.sync_path();
+            }
+            for converted_event in self.convert_event(event) {
+                if iter.count < iter.events.len() {
+                    iter.events[iter.count] = converted_event;
+                    iter.count += 1;
+                } else {
+                    break;
+                }
+            }
+            if iter.count + 2 < iter.events.len() {
+                break;
+            }
+        }
+
+        iter
+    }
+
+    /// Returns the id
+    pub fn id(&self) -> u32 {
+        self.inner.window().id()
+    }
+}
+
+/// Event iterator
+pub struct EventIter {
+    events: [Event; 16],
+    i: usize,
+    count: usize,
+}
+
+impl Iterator for EventIter {
+    type Item = Event;
+    fn next(&mut self) -> Option<Event> {
+        if self.i < self.count {
+            if let Some(event) = self.events.get(self.i) {
+                self.i += 1;
+                Some(*event)
+            } else {
+                None
+            }
+        } else {
+            None
+        }
+    }
+}