Struct RasterTarget 

pub struct RasterTarget<'a> { /* private fields */ }

Implementations

impl<'a> RasterTarget<'a>

pub fn new(framebuffer: &'a mut [u32], zbuffer: &'a mut [f32]) -> Self

Build a target from exclusive slice borrows. The slices are consumed (their &'a mut reborrow is the load-bearing thing — this constructor is the only way to mint a RasterTarget from safe code).

pub fn fb_len(self) -> usize

Framebuffer length in u32 elements.

pub fn fb_ptr(self) -> *mut u32

Raw mutable framebuffer pointer. Used by SSE blocks that do their own arithmetic + bounds reasoning.

Safety

Callers must respect fb_len and the parallel-use invariant.

pub fn zb_ptr(self) -> *mut f32

Raw mutable zbuffer pointer. Same contract as Self::fb_ptr.

pub unsafe fn write_color(self, idx: usize, color: u32)

Write one ARGB pixel.

Safety

idx < self.fb_len(), plus the parallel-use invariant.

pub unsafe fn write_depth(self, idx: usize, z: f32)

Write one z-buffer entry.

Safety

idx < self.fb_len() (zbuffer length matches fb), plus the parallel-use invariant.

pub unsafe fn z_test_write(self, idx: usize, color: u32, z: f32) -> bool

Depth-tested write: store (color, z) only if z is strictly closer (smaller) than the current z-buffer entry. Returns whether the pixel was written. The compositing primitive the DDA sprite raycaster uses to occlude sprites against terrain.

Safety

idx < self.fb_len(), plus the parallel-use invariant.

Trait Implementations

impl<'a> Clone for RasterTarget<'a>

fn clone(&self) -> RasterTarget<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for RasterTarget<'a>

impl<'a> Debug for RasterTarget<'a>

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

Formats the value using the given formatter.

impl Send for RasterTarget<'_>

impl Sync for RasterTarget<'_>