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[src/trunk]: src/sys/dev/wsfb Add "is_swapped" property which indicates 32-bp...
details: https://anonhg.NetBSD.org/src/rev/88d0c320a3bf
branches: trunk
changeset: 945032:88d0c320a3bf
user: rin <rin%NetBSD.org@localhost>
date: Mon Oct 19 01:08:06 2020 +0000
description:
Add "is_swapped" property which indicates 32-bpp framebuffer is
byte-swapped.
diffstat:
sys/dev/wsfb/genfb.c | 24 +++++++++++++++---------
1 files changed, 15 insertions(+), 9 deletions(-)
diffs (64 lines):
diff -r 2c49416bf323 -r 88d0c320a3bf sys/dev/wsfb/genfb.c
--- a/sys/dev/wsfb/genfb.c Sun Oct 18 22:55:52 2020 +0000
+++ b/sys/dev/wsfb/genfb.c Mon Oct 19 01:08:06 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: genfb.c,v 1.77 2020/10/18 12:47:37 rin Exp $ */
+/* $NetBSD: genfb.c,v 1.78 2020/10/19 01:08:06 rin Exp $ */
/*-
* Copyright (c) 2007 Michael Lorenz
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.77 2020/10/18 12:47:37 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.78 2020/10/19 01:08:06 rin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -539,7 +539,7 @@
struct genfb_softc *sc = cookie;
struct rasops_info *ri = &scr->scr_ri;
int wantcols;
- bool is_bgr;
+ bool is_bgr, is_swapped;
ri->ri_depth = sc->sc_depth;
ri->ri_width = sc->sc_width;
@@ -565,24 +565,30 @@
switch (ri->ri_depth) {
case 32:
case 24:
+ ri->ri_rnum = ri->ri_gnum = ri->ri_bnum = 8;
ri->ri_flg |= RI_ENABLE_ALPHA;
is_bgr = false;
prop_dictionary_get_bool(device_properties(sc->sc_dev),
"is_bgr", &is_bgr);
+
+ is_swapped = false;
+ prop_dictionary_get_bool(device_properties(sc->sc_dev),
+ "is_swapped", &is_swapped);
+
if (is_bgr) {
/* someone requested BGR */
- ri->ri_rnum = 8;
- ri->ri_gnum = 8;
- ri->ri_bnum = 8;
ri->ri_rpos = 0;
ri->ri_gpos = 8;
ri->ri_bpos = 16;
+ } else if (is_swapped) {
+ /* byte-swapped, must be 32 bpp */
+ KASSERT(ri->ri_depth == 32);
+ ri->ri_rpos = 8;
+ ri->ri_gpos = 16;
+ ri->ri_bpos = 24;
} else {
/* assume RGB */
- ri->ri_rnum = 8;
- ri->ri_gnum = 8;
- ri->ri_bnum = 8;
ri->ri_rpos = 16;
ri->ri_gpos = 8;
ri->ri_bpos = 0;
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