Function decode_texture_bytes

native/shared/src/models.rs:1862–1880

Decode a texture byte slice into RGBA8 pixels + dimensions. Tries DDS first when the URI extension suggests it (for asset packs like Lumberyard Bistro that ship BC-compressed textures), falling back to the `image` crate for PNG/JPEG/etc. Returns None on failure.

(bytes: &[u8], uri: &str)

/// Lumberyard Bistro that ship BC-compressed textures), falling back
/// to the `image` crate for PNG/JPEG/etc. Returns None on failure.
fn decode_texture_bytes(bytes: &[u8], uri: &str) -> Option<(Vec<u8>, u32, u32)> {
    let is_dds = uri.to_ascii_lowercase().ends_with(".dds")
        || bytes.len() >= 4 && &bytes[..4] == b"DDS ";
    if is_dds {
        if let Ok(dds) = image_dds::ddsfile::Dds::read(bytes) {
            // Decode mip 0 → RGBA8. image_from_dds handles the common
            // BC1–BC7 formats; anything it can't decode falls through
            // to the image crate which will almost certainly fail too.
            if let Ok(rgba) = image_dds::image_from_dds(&dds, 0) {
                let (w, h) = (rgba.width(), rgba.height());
                return Some((rgba.into_raw(), w, h));
            }
        }
    }
    let img = image::load_from_memory(bytes).ok()?;
    let rgba = img.to_rgba8();
    let (w, h) = (rgba.width(), rgba.height());
    Some((rgba.into_raw(), w, h))
}

fn base64_decode(input: &str, output: &mut Vec<u8>) {
    let mut buf = 0u32;