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[src/trunk]: src/sys/arch/luna68k/dev Pull readability changes from OpenBSD/l...
details: https://anonhg.NetBSD.org/src/rev/cbef811aa67e
branches: trunk
changeset: 802706:cbef811aa67e
user: tsutsui <tsutsui%NetBSD.org@localhost>
date: Sun Sep 28 04:43:01 2014 +0000
description:
Pull readability changes from OpenBSD/luna88k.
- prepare and use unpack_attr() function to get fg and bg from attribute
- use proper variable names to clarify meanings
Tested on LUNA-II with 8bpp framebuffer.
diffstat:
sys/arch/luna68k/dev/omrasops.c | 113 +++++++++++++++++++++------------------
1 files changed, 62 insertions(+), 51 deletions(-)
diffs (199 lines):
diff -r 659ea5b04eb8 -r cbef811aa67e sys/arch/luna68k/dev/omrasops.c
--- a/sys/arch/luna68k/dev/omrasops.c Sat Sep 27 21:01:51 2014 +0000
+++ b/sys/arch/luna68k/dev/omrasops.c Sun Sep 28 04:43:01 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: omrasops.c,v 1.16 2013/12/28 09:17:23 tsutsui Exp $ */
+/* $NetBSD: omrasops.c,v 1.17 2014/09/28 04:43:01 tsutsui Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: omrasops.c,v 1.16 2013/12/28 09:17:23 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: omrasops.c,v 1.17 2014/09/28 04:43:01 tsutsui Exp $");
/*
* Designed speficically for 'm68k bitorder';
@@ -68,6 +68,7 @@
static void om4_eraserows(void *, int, int, long);
static int om1_allocattr(void *, int, int, int, long *);
static int om4_allocattr(void *, int, int, int, long *);
+static void om4_unpack_attr(long, int *, int *, int *);
static int omrasops_init(struct rasops_info *, int, int);
@@ -173,9 +174,8 @@
struct rasops_info *ri = cookie;
uint8_t *p;
int scanspan, startx, height, width, align, y;
- uint32_t lmask, rmask, glyph;
- uint32_t glyphbg, fg, bg;
- int i;
+ uint32_t lmask, rmask, glyph, glyphbg, fgpat, bgpat;
+ int i, fg, bg;
uint8_t *fb;
scanspan = ri->ri_stride;
@@ -184,6 +184,7 @@
height = ri->ri_font->fontheight;
fb = (uint8_t *)ri->ri_font->data +
(uc - ri->ri_font->firstchar) * ri->ri_fontscale;
+ om4_unpack_attr(attr, &fg, &bg, NULL);
p = (uint8_t *)ri->ri_bits + y * scanspan + ((startx / 32) * 4);
align = startx & ALIGNMASK;
@@ -199,18 +200,18 @@
glyph <<= (4 - ri->ri_font->stride) * NBBY;
glyph = (glyph >> align);
glyphbg = glyph ^ ALL1BITS;
- fg = (attr & 0x01000000) ? glyph : 0;
- bg = (attr & 0x00010000) ? glyphbg : 0;
- P0(p) = (P0(p) & ~lmask) | ((fg | bg) & lmask);
- fg = (attr & 0x02000000) ? glyph : 0;
- bg = (attr & 0x00020000) ? glyphbg : 0;
- P1(p) = (P1(p) & ~lmask) | ((fg | bg) & lmask);
- fg = (attr & 0x04000000) ? glyph : 0;
- bg = (attr & 0x00040000) ? glyphbg : 0;
- P2(p) = (P2(p) & ~lmask) | ((fg | bg) & lmask);
- fg = (attr & 0x08000000) ? glyph : 0;
- bg = (attr & 0x00080000) ? glyphbg : 0;
- P3(p) = (P3(p) & ~lmask) | ((fg | bg) & lmask);
+ fgpat = (fg & 0x01) ? glyph : 0;
+ bgpat = (bg & 0x01) ? glyphbg : 0;
+ P0(p) = (P0(p) & ~lmask) | ((fgpat | bgpat) & lmask);
+ fgpat = (fg & 0x02) ? glyph : 0;
+ bgpat = (bg & 0x02) ? glyphbg : 0;
+ P1(p) = (P1(p) & ~lmask) | ((fgpat | bgpat) & lmask);
+ fgpat = (fg & 0x04) ? glyph : 0;
+ bgpat = (bg & 0x04) ? glyphbg : 0;
+ P2(p) = (P2(p) & ~lmask) | ((fgpat | bgpat) & lmask);
+ fgpat = (fg & 0x08) ? glyph : 0;
+ bgpat = (bg & 0x08) ? glyphbg : 0;
+ P3(p) = (P3(p) & ~lmask) | ((fgpat | bgpat) & lmask);
p += scanspan;
height--;
}
@@ -226,33 +227,33 @@
glyph <<= (4 - ri->ri_font->stride) * NBBY;
lhalf = (glyph >> align);
lhalfbg = lhalf ^ ALL1BITS;
- fg = (attr & 0x01000000) ? lhalf : 0;
- bg = (attr & 0x00010000) ? lhalfbg : 0;
- P0(p) = (P0(p) & ~lmask) | ((fg | bg) & lmask);
- fg = (attr & 0x02000000) ? lhalf : 0;
- bg = (attr & 0x00020000) ? lhalfbg : 0;
- P1(p) = (P1(p) & ~lmask) | ((fg | bg) & lmask);
- fg = (attr & 0x04000000) ? lhalf : 0;
- bg = (attr & 0x00040000) ? lhalfbg : 0;
- P2(p) = (P2(p) & ~lmask) | ((fg | bg) & lmask);
- fg = (attr & 0x08000000) ? lhalf : 0;
- bg = (attr & 0x00080000) ? lhalfbg : 0;
- P3(p) = (P3(p) & ~lmask) | ((fg | bg) & lmask);
+ fgpat = (fg & 0x01) ? lhalf : 0;
+ bgpat = (bg & 0x01) ? lhalfbg : 0;
+ P0(p) = (P0(p) & ~lmask) | ((fgpat | bgpat) & lmask);
+ fgpat = (fg & 0x02) ? lhalf : 0;
+ bgpat = (bg & 0x02) ? lhalfbg : 0;
+ P1(p) = (P1(p) & ~lmask) | ((fgpat | bgpat) & lmask);
+ fgpat = (fg & 0x04) ? lhalf : 0;
+ bgpat = (bg & 0x04) ? lhalfbg : 0;
+ P2(p) = (P2(p) & ~lmask) | ((fgpat | bgpat) & lmask);
+ fgpat = (fg & 0x08) ? lhalf : 0;
+ bgpat = (bg & 0x08) ? lhalfbg : 0;
+ P3(p) = (P3(p) & ~lmask) | ((fgpat | bgpat) & lmask);
p += BYTESDONE;
rhalf = (glyph << (BLITWIDTH - align));
rhalfbg = rhalf ^ ALL1BITS;
- fg = (attr & 0x01000000) ? rhalf : 0;
- bg = (attr & 0x00010000) ? rhalfbg : 0;
- P0(p) = ((fg | bg) & rmask) | (P0(p) & ~rmask);
- fg = (attr & 0x02000000) ? rhalf : 0;
- bg = (attr & 0x00020000) ? rhalfbg : 0;
- P1(p) = ((fg | bg) & rmask) | (P1(p) & ~rmask);
- fg = (attr & 0x04000000) ? rhalf : 0;
- bg = (attr & 0x00040000) ? rhalfbg : 0;
- P2(p) = ((fg | bg) & rmask) | (P2(p) & ~rmask);
- fg = (attr & 0x08000000) ? rhalf : 0;
- bg = (attr & 0x00080000) ? rhalfbg : 0;
- P3(p) = ((fg | bg) & rmask) | (P3(p) & ~rmask);
+ fgpat = (fg & 0x01) ? rhalf : 0;
+ bgpat = (bg & 0x01) ? rhalfbg : 0;
+ P0(p) = ((fgpat | bgpat) & rmask) | (P0(p) & ~rmask);
+ fgpat = (fg & 0x02) ? rhalf : 0;
+ bgpat = (bg & 0x02) ? rhalfbg : 0;
+ P1(p) = ((fgpat | bgpat) & rmask) | (P1(p) & ~rmask);
+ fgpat = (fg & 0x04) ? rhalf : 0;
+ bgpat = (bg & 0x04) ? rhalfbg : 0;
+ P2(p) = ((fgpat | bgpat) & rmask) | (P2(p) & ~rmask);
+ fgpat = (fg & 0x08) ? rhalf : 0;
+ bgpat = (bg & 0x08) ? rhalfbg : 0;
+ P3(p) = ((fgpat | bgpat) & rmask) | (P3(p) & ~rmask);
p = (q += scanspan);
height--;
@@ -313,7 +314,7 @@
{
struct rasops_info *ri = cookie;
uint8_t *p;
- int scanspan, startx, height, width, align, w, y;
+ int scanspan, startx, height, width, align, w, y, fg, bg;
uint32_t lmask, rmask, fill0, fill1, fill2, fill3;
scanspan = ri->ri_stride;;
@@ -321,10 +322,11 @@
startx = ri->ri_font->fontwidth * startcol;
height = ri->ri_font->fontheight;
w = ri->ri_font->fontwidth * ncols;
- fill0 = ((attr & 0x00010000) != 0) ? ALL1BITS : ALL0BITS;
- fill1 = ((attr & 0x00020000) != 0) ? ALL1BITS : ALL0BITS;
- fill2 = ((attr & 0x00040000) != 0) ? ALL1BITS : ALL0BITS;
- fill3 = ((attr & 0x00080000) != 0) ? ALL1BITS : ALL0BITS;
+ om4_unpack_attr(attr, &fg, &bg, NULL);
+ fill0 = ((bg & 0x01) != 0) ? ALL1BITS : ALL0BITS;
+ fill1 = ((bg & 0x02) != 0) ? ALL1BITS : ALL0BITS;
+ fill2 = ((bg & 0x04) != 0) ? ALL1BITS : ALL0BITS;
+ fill3 = ((bg & 0x08) != 0) ? ALL1BITS : ALL0BITS;
p = (uint8_t *)ri->ri_bits + y * scanspan + ((startx / 32) * 4);
align = startx & ALIGNMASK;
@@ -413,17 +415,18 @@
{
struct rasops_info *ri = cookie;
uint8_t *p, *q;
- int scanspan, starty, height, width, w;
+ int scanspan, starty, height, width, w, fg, bg;
uint32_t rmask, fill0, fill1, fill2, fill3;
scanspan = ri->ri_stride;
starty = ri->ri_font->fontheight * startrow;
height = ri->ri_font->fontheight * nrows;
w = ri->ri_emuwidth;
- fill0 = ((attr & 0x00010000) != 0) ? ALL1BITS : ALL0BITS;
- fill1 = ((attr & 0x00020000) != 0) ? ALL1BITS : ALL0BITS;
- fill2 = ((attr & 0x00040000) != 0) ? ALL1BITS : ALL0BITS;
- fill3 = ((attr & 0x00080000) != 0) ? ALL1BITS : ALL0BITS;
+ om4_unpack_attr(attr, &fg, &bg, NULL);
+ fill0 = ((bg & 0x01) != 0) ? ALL1BITS : ALL0BITS;
+ fill1 = ((bg & 0x02) != 0) ? ALL1BITS : ALL0BITS;
+ fill2 = ((bg & 0x04) != 0) ? ALL1BITS : ALL0BITS;
+ fill3 = ((bg & 0x08) != 0) ? ALL1BITS : ALL0BITS;
p = (uint8_t *)ri->ri_bits + starty * scanspan;
width = w;
@@ -1044,6 +1047,14 @@
return 0;
}
+static void
+om4_unpack_attr(long attr, int *fg, int *bg, int *underline)
+{
+
+ *fg = ((u_int)attr >> 24) & 0xf;
+ *bg = ((u_int)attr >> 16) & 0xf;
+}
+
/*
* Init subset of rasops(9) for omrasops.
*/
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