Struct Texture 

pub struct Texture {
    pub format: u32,
    /* private fields */
}

Fields

format: u32

Implementations

impl Texture

pub fn from_font_atlas_data( gl: &Context, format: u32, atlas: &FontAtlasData, ) -> Result<Self, Error>

pub fn for_dynamic_font_atlas( gl: &Context, format: u32, cell_size: (i32, i32), initial_layers: i32, ) -> Result<Self, Error>

Creates an empty texture array for dynamic glyph rasterization.

Allocates a fixed-size 2D texture array and initializes all layers to transparent black (RGBA 0,0,0,0).

LRU eviction: When the glyph cache evicts old entries, the texture slots are reused. The new glyph completely overwrites the slot, so no explicit clearing is needed on eviction.

Arguments

• gl - GL context
• format - Texture format
• cell_size - (width, height) of each glyph cell in pixels
• initial_layers - Number of texture layers to allocate initially

pub fn upload_glyph( &self, gl: &Context, glyph_id: u16, padded_cell_size: (i32, i32), rasterized: &RasterizedGlyph, ) -> Result<(), Error>

Uploads a rasterized glyph to the texture at the position determined by its ID.

Glyph positions follow the layout: layer = id / 32, y = (id % 32) * cell_height

pub fn dimensions(&self) -> (i32, i32, i32)

Returns the texture dimensions (width, height, layers)

pub fn bind(&self, gl: &Context)

pub fn delete(&self, gl: &Context)

Trait Implementations

impl Debug for Texture

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

Formats the value using the given formatter.