fn insert_and_render_bitmap(
renderer: &mut impl GlyphRenderer,
glyph: &GlyphBitmap,
transform: Affine,
cache_key: GlyphCacheKey,
glyph_atlas: &mut GlyphAtlas,
image_cache: &mut ImageCache,
) -> CacheResultfn insert_and_render_bitmap(
renderer: &mut impl GlyphRenderer,
glyph: &GlyphBitmap,
transform: Affine,
cache_key: GlyphCacheKey,
glyph_atlas: &mut GlyphAtlas,
image_cache: &mut ImageCache,
) -> CacheResult