Struct TextureWriteDescriptor 

pub struct TextureWriteDescriptor {
    pub data: Vec<u8>,
    pub bytes_per_row: u32,
    pub rows_per_image: u32,
    pub mip_level: u32,
    pub texture: JsValue,
    pub origin: Option<JsValue>,
    pub flip_y: bool,
}

Descriptor for queue.writeTexture(destination, data, dataLayout, size).

WebGPU’s writeTexture lets you upload CPU-side pixel data directly to a texture without staging through a buffer. Use it for: ImGui font atlases, procedural noise textures, sprite sheets, ImageBitmap pixels, etc.

Fields

data: Vec<u8>

The pixel data to upload. Bytes are laid out according to bytes_per_row / rows_per_image.

bytes_per_row: u32

Bytes per row of the source data. Must be a multiple of 256.

rows_per_image: u32

Number of rows per image. 0 for 2D textures without mip chains.

mip_level: u32

Destination mip level to write into.

texture: JsValue

Destination texture to write into.

origin: Option<JsValue>

Origin within the destination texture. None → (0, 0, 0).

flip_y: bool

Whether to flip the source data vertically before writing. true is essential when uploading from <img> / <canvas> whose rows are top-to-bottom but WebGPU textures are bottom-to-top.

Implementations

impl TextureWriteDescriptor

2D-upload convenience constructor for TextureWriteDescriptor.

pub fn for_2d(data: Vec<u8>, bytes_per_row: u32, texture: JsValue) -> Self

Convenience constructor for the common 2D upload case.

• data - packed pixel bytes (format-dependent).
• bytes_per_row - row stride of data, must be a multiple of 256.
• texture - the destination GpuTexture handle.

Arguments

• Vec<u8> - A Vec<u8> parameter.
• u32 - A 32-bit unsigned integer (u32).
• JsValue - A JsValue parameter.

impl TextureWriteDescriptor

pub fn get_data(&self) -> Vec<u8>

pub fn get_bytes_per_row(&self) -> u32

pub fn get_rows_per_image(&self) -> u32

pub fn get_mip_level(&self) -> u32

pub fn get_texture(&self) -> JsValue

pub fn get_origin(&self) -> Option<JsValue>

pub fn try_get_origin(&self) -> Option<JsValue>

pub fn get_flip_y(&self) -> bool

impl TextureWriteDescriptor

pub fn new( data: Vec<u8>, bytes_per_row: u32, rows_per_image: u32, mip_level: u32, texture: JsValue, origin: Option<JsValue>, flip_y: bool, ) -> Self

Trait Implementations

impl Clone for TextureWriteDescriptor

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextureWriteDescriptor

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

Formats the value using the given formatter.