Function bloom_load_render_texture

native/macos/src/lib.rs:2640–2656

(width: f64, height: f64)

// Q1: Render texture FFI — create GPU textures for render-to-texture.
#[no_mangle]
pub extern "C" fn bloom_load_render_texture(width: f64, height: f64) -> f64 {
    let w = width as u32;
    let h = height as u32;
    let eng = engine();
    let rt_handle = eng.textures.load_render_texture(w, h);

    // Create the GPU texture via the renderer's public method.
    let (bind_group_idx, _tex_vec_idx) = eng.renderer.create_render_texture(w, h);

    // Register as a texture handle so drawTexture can sample it.
    let tex_handle = eng.textures.textures.alloc(bloom_shared::textures::TextureData {
        bind_group_idx, width: w, height: h,
    });
    eng.textures.set_render_texture_handle(rt_handle, tex_handle);

    rt_handle
}
#[no_mangle]
pub extern "C" fn bloom_unload_render_texture(handle: f64) {
    engine().textures.unload_render_texture(handle);