[src/trunk]: src/sys/dev/rasops Hmmm, color was still strange for 24bpp on li...

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

details:   https://anonhg.NetBSD.org/src/rev/75914b0dd1b4
branches:  trunk
changeset: 452976:75914b0dd1b4
user:      rin <rin%NetBSD.org@localhost>
date:      Mon Jul 29 16:17:29 2019 +0000

description:
Hmmm, color was still strange for 24bpp on little endian machine,
only when font width is 12.

We need to use different devcmap for that case, if we wish to share
codes for other depths/font widths as possible as we can.

XXX
What should we do for big endian? I have no big endian machines with
24bpp framebuffer...

diffstat:

 sys/dev/rasops/rasops.c   |  18 ++++++++++++++----
 sys/dev/rasops/rasops24.c |  12 ++++++++++--
 2 files changed, 24 insertions(+), 6 deletions(-)

diffs (72 lines):

diff -r c0f24d61e4f1 -r 75914b0dd1b4 sys/dev/rasops/rasops.c
--- a/sys/dev/rasops/rasops.c   Mon Jul 29 14:59:25 2019 +0000
+++ b/sys/dev/rasops/rasops.c   Mon Jul 29 16:17:29 2019 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: rasops.c,v 1.96 2019/07/29 14:43:14 rin Exp $ */
+/*      $NetBSD: rasops.c,v 1.97 2019/07/29 16:17:29 rin Exp $ */
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops.c,v 1.96 2019/07/29 14:43:14 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops.c,v 1.97 2019/07/29 16:17:29 rin Exp $");
 
 #include "opt_rasops.h"
 #include "rasops_glue.h"
@@ -901,8 +901,18 @@
                        c |= c << 16;
                else if (ri->ri_depth == 24) {
 #if BYTE_ORDER == LITTLE_ENDIAN
-                       c = (c & 0x0000ff) << 16 | (c & 0x00ff00) |
-                           (c & 0xff0000) >> 16;
+#  ifndef RASOPS_SMALL
+                       if (ri->ri_font->fontwidth != 12)
+#  endif
+                               c = (c & 0x0000ff) << 16 | (c & 0x00ff00) |
+                                   (c & 0xff0000) >> 16;
+#  ifndef RASOPS_SMALL
+                       else
+                               c = (c & 0x0000ff) | (c & 0x00ff00) << 8 |
+                                   (c & 0xff0000) >> 8;
+#  endif
+#else
+                       /* XXXRO What should we do here? */
 #endif
                        c |= (c & 0xff) << 24;
                }
diff -r c0f24d61e4f1 -r 75914b0dd1b4 sys/dev/rasops/rasops24.c
--- a/sys/dev/rasops/rasops24.c Mon Jul 29 14:59:25 2019 +0000
+++ b/sys/dev/rasops/rasops24.c Mon Jul 29 16:17:29 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: rasops24.c,v 1.37 2019/07/29 14:06:32 rin Exp $        */
+/*     $NetBSD: rasops24.c,v 1.38 2019/07/29 16:17:29 rin Exp $        */
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops24.c,v 1.37 2019/07/29 14:06:32 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops24.c,v 1.38 2019/07/29 16:17:29 rin Exp $");
 
 #include "opt_rasops.h"
 
@@ -80,6 +80,14 @@
 rasops24_init(struct rasops_info *ri)
 {
 
+#ifndef RASOPS_SMALL
+       /*
+        * Different devcmap's are used depending on font widths,
+        * therefore we need reset stamp here.
+        */
+       stamp_attr = 0;
+#endif
+
        if (ri->ri_rnum == 0) {
                ri->ri_rnum = ri->ri_gnum = ri->ri_bnum = 8;