Searched refs:calculate_alpha (Results 1 – 1 of 1) sorted by relevance
281 AGG_INLINE unsigned calculate_alpha(int area, bool no_smooth) const in calculate_alpha() function352 alpha = calculate_alpha((cover << (poly_base_shift + 1)) - area, no_smooth); in sweep_scanline()359 alpha = calculate_alpha(cover << (poly_base_shift + 1), no_smooth); in sweep_scanline()