55     struct None {};  struct
67     operator None() { return None{}; }  in None()  function
1260 STAGE(seed_shader, Ctx::None) {  in STAGE()
1329 STAGE(black_color, Ctx::None) {  in STAGE()
1334 STAGE(white_color, Ctx::None) {  in STAGE()
1503 STAGE(hue, Ctx::None) {  in STAGE()
1517 STAGE(saturation, Ctx::None) {  in STAGE()
1531 STAGE(color, Ctx::None) {  in STAGE()
1544 STAGE(luminosity, Ctx::None) {  in STAGE()
1583 STAGE(clamp_0, Ctx::None) {  in STAGE()
1590 STAGE(clamp_1, Ctx::None) {  in STAGE()
1597 STAGE(clamp_a, Ctx::None) {  in STAGE()
1604 STAGE(clamp_gamut, Ctx::None) {  in STAGE()
1622 STAGE(swap_rb, Ctx::None) {  in STAGE()
1627 STAGE(swap_rb_dst, Ctx::None) {  in STAGE()
1633 STAGE(move_src_dst, Ctx::None) {  in STAGE()
1639 STAGE(move_dst_src, Ctx::None) {  in STAGE()
1646 STAGE(premul, Ctx::None) {  in STAGE()
1651 STAGE(premul_dst, Ctx::None) {  in STAGE()
1656 STAGE(unpremul, Ctx::None) {  in STAGE()
1664 STAGE(force_opaque    , Ctx::None) {  a = 1; }  in STAGE()
1665 STAGE(force_opaque_dst, Ctx::None) { da = 1; }  in STAGE()
1667 STAGE(rgb_to_hsl, Ctx::None) {  in STAGE()
1687 STAGE(hsl_to_rgb, Ctx::None) {  in STAGE()
1846 STAGE(from_srgb, Ctx::None) {  in STAGE()
1858 STAGE(to_srgb, Ctx::None) {  in STAGE()
2194 STAGE( clamp_x_1, Ctx::None) { r = clamp_01(r); }  in STAGE()
2195 STAGE(repeat_x_1, Ctx::None) { r = clamp_01(r - floor_(r)); }  in STAGE()
2196 STAGE(mirror_x_1, Ctx::None) { r = clamp_01(abs_( (r-1.0f) - two(floor_((r-1.0f)*0.5f)) - 1.0f )); }  in STAGE()
2226 STAGE(alpha_to_gray, Ctx::None) {  in STAGE()
2230 STAGE(alpha_to_gray_dst, Ctx::None) {  in STAGE()
2234 STAGE(bt709_luminance_or_luma_to_alpha, Ctx::None) {  in STAGE()
2359 STAGE(xy_to_unit_angle, Ctx::None) {  in STAGE()
2385 STAGE(xy_to_radius, Ctx::None) {  in STAGE()
2393 STAGE(negate_x, Ctx::None) { r = -r; }  in STAGE()
2400 STAGE(xy_to_2pt_conical_focal_on_circle, Ctx::None) {  in STAGE()
2425 STAGE(alter_2pt_conical_unswap, Ctx::None) {  in STAGE()
2603 STAGE(gauss_a_to_rgba, Ctx::None) {  in STAGE()