140 ALWAYS_INLINE static double colordifference_ch(const double x, const double y, const double alphas);
141 inline static double colordifference_ch(const double x, const double y, const double alphas)  in colordifference_ch()  argument
145     const double black = x-y, white = black+alphas;  in colordifference_ch()
165     const double alphas = py.a-px.a;  in colordifference_stdc()  local
166     return colordifference_ch(px.r, py.r, alphas) +  in colordifference_stdc()
167            colordifference_ch(px.g, py.g, alphas) +  in colordifference_stdc()
168            colordifference_ch(px.b, py.b, alphas);  in colordifference_stdc()
171 …S_INLINE static double min_colordifference_ch(const double x, const double y, const double alphas);
172 inline static double min_colordifference_ch(const double x, const double y, const double alphas)  in min_colordifference_ch()  argument
174     const double black = x-y, white = black+alphas;  in min_colordifference_ch()
182     const double alphas = py.a-px.a;  in min_colordifference()  local
183     return min_colordifference_ch(px.r, py.r, alphas) +  in min_colordifference()
184            min_colordifference_ch(px.g, py.g, alphas) +  in min_colordifference()
185            min_colordifference_ch(px.b, py.b, alphas);  in min_colordifference()
192     __m128 alphas, onblack, onwhite;  in colordifference()  local
198     alphas = _mm_sub_ss(vpy, vpx);  in colordifference()
199     alphas = _mm_shuffle_ps(alphas,alphas,0); // copy first to all four  in colordifference()
202     onwhite = _mm_add_ps(onblack, alphas); // x - y + (y.a - x.a)  in colordifference()