Struct VideoWallWindow 

pub struct VideoWallWindow {
    pub pos_x: u16,
    pub pos_y: u16,
    pub width: u16,
    pub height: u16,
    pub raster_w: u16,
    pub raster_h: u16,
}

Where a video-wall sink’s window sits, and the picture it was measured against.

The raster travels with the window because only the sender knows what the installer drew against; a sink deriving it from what it happens to be showing would place the window against the wrong picture.

Nothing on the receiving side is guaranteed to check any of this, so VideoWallWindow::validate runs before every send. See crate::Remote::store_video_wall for why that matters.

Fields

pos_x: u16

Window origin, horizontal. A multiple of VIDEO_WALL_POS_ALIGN.

pos_y: u16

Window origin, vertical. No alignment constraint.

width: u16

Window width. A multiple of VIDEO_WALL_WIDTH_ALIGN, and at least VIDEO_WALL_MIN_SIZE unless it is zero.

height: u16

Window height, at least VIDEO_WALL_MIN_SIZE unless it is zero. No alignment constraint.

raster_w: u16

Active picture width the window was measured against. Zero states no raster, which is accepted and skips the containment check.

raster_h: u16

Active picture height the window was measured against. See Self::raster_w.

Implementations

impl VideoWallWindow

pub const fn is_cleared(&self) -> bool

Reports whether this window clears the wall rather than placing one.

pub fn validate(&self) -> Result<(), &'static str>

Checks a window against the rules the sink applies to it.

Every rule here matches one the receiver enforces, and is worth applying anyway: a window the sink refuses is refused in silence. It logs locally, keeps whatever it had, and answers nothing, so a caller that skipped this would see a successful send and no wall.

The three alignments follow the sink’s hardware - the horizontal step from its framebuffer’s burst width, the width step from the pixels its pipeline moves per clock, the minimum from its scaler - and a live unit reports them over HTTP, so a caller with access to one can read them rather than trust the constants here.

A cleared window passes: zero is the protocol’s word for “clear”, not a window too small to draw. So does a window naming no raster.

Trait Implementations

impl Clone for VideoWallWindow

fn clone(&self) -> VideoWallWindow

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for VideoWallWindow

impl Debug for VideoWallWindow

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for VideoWallWindow

fn default() -> VideoWallWindow

Returns the “default value” for a type.

impl Display for VideoWallWindow

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for VideoWallWindow

impl PartialEq for VideoWallWindow

fn eq(&self, other: &VideoWallWindow) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for VideoWallWindow