Struct RgbaBuffer 

pub struct RgbaBuffer {
    pub width: u32,
    pub height: u32,
    pub data: Vec<u8>,
}

RGBA pixel buffer returned by headless rendering.

Pixels are stored row-major, left-to-right, top-to-bottom. Each pixel occupies exactly 4 bytes in the order R, G, B, A.

Fields

width: u32

Width in pixels.

height: u32

Height in pixels.

data: Vec<u8>

Raw pixel data: width * height * 4 bytes (R, G, B, A per pixel).

Implementations

impl RgbaBuffer

pub fn has_content(&self) -> bool

Returns true if any byte in the pixel data is non-zero.

A buffer composed entirely of zero bytes represents a fully transparent (or un-rendered) frame. Any non-zero R, G, B, or A value means that at least one pixel carried visible or semi-transparent content.

pub fn save_png(&self, path: &Path) -> Result<(), SoftRenderError>

Save this buffer as a PNG file at path.

Uses the png crate (pure Rust) — no C/C++ dependencies.

Errors

Returns crate::SoftRenderError::Io if the file cannot be created or written, and crate::SoftRenderError::Png if the PNG encoder fails.