[src/trunk]: src/sys/dev/wsfb We support anti-aliasing for depth 2.

[rin <rin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/285a8ecc5dd9
branches:  trunk
changeset: 458713:285a8ecc5dd9
user:      rin <rin%NetBSD.org@localhost>
date:      Wed Aug 07 13:23:12 2019 +0000

description:
We support anti-aliasing for depth 2.
Use switch appropriately.

diffstat:

 sys/dev/wsfb/genfb.c |  30 ++++++++++++++++++++++--------
 1 files changed, 22 insertions(+), 8 deletions(-)

diffs (70 lines):

diff -r 3707ccb7d84e -r 285a8ecc5dd9 sys/dev/wsfb/genfb.c
--- a/sys/dev/wsfb/genfb.c      Wed Aug 07 13:22:00 2019 +0000
+++ b/sys/dev/wsfb/genfb.c      Wed Aug 07 13:23:12 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: genfb.c,v 1.68 2019/08/02 10:34:39 rin Exp $ */
+/*     $NetBSD: genfb.c,v 1.69 2019/08/07 13:23:12 rin Exp $ */
 
 /*-
  * Copyright (c) 2007 Michael Lorenz
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.68 2019/08/02 10:34:39 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.69 2019/08/07 13:23:12 rin Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -541,6 +541,7 @@
        struct genfb_softc *sc = cookie;
        struct rasops_info *ri = &scr->scr_ri;
        int wantcols;
+       bool is_bgr;
 
        ri->ri_depth = sc->sc_depth;
        ri->ri_width = sc->sc_width;
@@ -563,10 +564,11 @@
        if (existing && sc->sc_want_clear)
                ri->ri_flg |= RI_CLEAR;
 
-       if (ri->ri_depth == 32 || ri->ri_depth == 24) {
+       switch (ri->ri_depth) {
+       case 32:
+       case 24:
                ri->ri_flg |= RI_ENABLE_ALPHA;
 
-               bool is_bgr = false;
                prop_dictionary_get_bool(device_properties(sc->sc_dev),
                    "is_bgr", &is_bgr);
                if (is_bgr) {
@@ -586,13 +588,25 @@
                        ri->ri_gpos = 8;
                        ri->ri_bpos = 0;
                }
-       }
+               break;
 
-       if (ri->ri_depth == 16 || ri->ri_depth == 15)
+       case 16:
+       case 15:
                ri->ri_flg |= RI_ENABLE_ALPHA;
+               break;
 
-       if (ri->ri_depth == 8 && sc->sc_cmcb != NULL)
-               ri->ri_flg |= RI_ENABLE_ALPHA | RI_8BIT_IS_RGB;
+       case 8:
+               if (sc->sc_cmcb != NULL)
+                       ri->ri_flg |= RI_ENABLE_ALPHA | RI_8BIT_IS_RGB;
+               break;
+
+       case 2:
+               ri->ri_flg |= RI_ENABLE_ALPHA;
+               break;
+
+       default:
+               break;
+       }
 
        wantcols = genfb_calc_cols(sc);