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pub struct Display {
handle: *const sys::playdate_display,
}
impl Display {
pub(crate) fn new(handle: *const sys::playdate_display) -> Self {
Self { handle }
}
/// Returns the height of the display, taking the current scale into account; e.g., if the scale is 2, this function returns 120 instead of 240.
pub fn get_width(&self) -> i32 {
unsafe { (*self.handle).getWidth.unwrap()() }
}
/// Returns the width of the display, taking the current scale into account; e.g., if the scale is 2, this function returns 200 instead of 400.
pub fn get_height(&self) -> i32 {
unsafe { (*self.handle).getHeight.unwrap()() }
}
/// Sets the nominal refresh rate in frames per second. Default is 20 fps, the maximum rate supported by the hardware for full-frame updates.
pub fn set_refresh_rate(&self, rate: f32) {
unsafe { (*self.handle).setRefreshRate.unwrap()(rate) }
}
/// If flag evaluates to true, the frame buffer is drawn inverted—black instead of white, and vice versa.
pub fn set_inverted(&self, flag: i32) {
unsafe { (*self.handle).setInverted.unwrap()(flag) }
}
/// Sets the display scale factor. Valid values for scale are 1, 2, 4, and 8.
///
/// The top-left corner of the frame buffer is scaled up to fill the display; e.g., if the scale is set to 4, the pixels in rectangle [0,100] x [0,60] are drawn on the screen as 4 x 4 squares.
pub fn set_scale(&self, s: u32) {
unsafe { (*self.handle).setScale.unwrap()(s) }
}
/// Adds a mosaic effect to the display. Valid x and y values are between 0 and 3, inclusive.
pub fn set_mosaic(&self, x: u32, y: u32) {
unsafe { (*self.handle).setMosaic.unwrap()(x, y) }
}
/// Flips the display on the x or y axis, or both.
pub fn set_flipped(&self, x: i32, y: i32) {
unsafe { (*self.handle).setFlipped.unwrap()(x, y) }
}
/// Offsets the display by the given amount. Areas outside of the displayed area are filled with the current background color.
pub fn set_offset(&self, x: i32, y: i32) {
unsafe { (*self.handle).setOffset.unwrap()(x, y) }
}
}
pub const DISPLAY_WIDTH: i32 = 400;
pub const DISPLAY_HEIGHT: i32 = 240;