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[src/trunk]: src/sys/dev/rasops Add width-optimized putchar functions for 32-...
details: https://anonhg.NetBSD.org/src/rev/4c0f3d25f56a
branches: trunk
changeset: 457970:4c0f3d25f56a
user: rin <rin%NetBSD.org@localhost>
date: Thu Jul 25 15:12:47 2019 +0000
description:
Add width-optimized putchar functions for 32-bpp, that work fine on
both little- and big-endian machines.
WIP genfb(4) driver for mac68k becomes 1.5 times faster!
diffstat:
sys/dev/rasops/rasops32.c | 477 +++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 474 insertions(+), 3 deletions(-)
diffs (truncated from 510 to 300 lines):
diff -r 0c8ac708d1ad -r 4c0f3d25f56a sys/dev/rasops/rasops32.c
--- a/sys/dev/rasops/rasops32.c Thu Jul 25 15:06:07 2019 +0000
+++ b/sys/dev/rasops/rasops32.c Thu Jul 25 15:12:47 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rasops32.c,v 1.35 2019/07/25 03:02:44 rin Exp $ */
+/* $NetBSD: rasops32.c,v 1.36 2019/07/25 15:12:47 rin Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.35 2019/07/25 03:02:44 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.36 2019/07/25 15:12:47 rin Exp $");
#include "opt_rasops.h"
@@ -44,6 +44,30 @@
static void rasops32_putchar(void *, int, int, u_int, long attr);
static void rasops32_putchar_aa(void *, int, int, u_int, long attr);
+#ifndef RASOPS_SMALL
+static void rasops32_putchar8(void *, int, int, u_int, long);
+static void rasops32_putchar12(void *, int, int, u_int, long);
+static void rasops32_putchar16(void *, int, int, u_int, long);
+static void rasops32_makestamp(struct rasops_info *, long);
+
+/*
+ * 4x1 stamp for optimized character blitting
+ */
+static uint32_t stamp[64];
+static long stamp_attr;
+static int stamp_mutex; /* XXX see note in readme */
+#endif
+
+/*
+ * offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK
+ * destination uint32_t[0] = STAMP_READ(offset)
+ * destination uint32_t[1] = STAMP_READ(offset + 4)
+ * destination uint32_t[2] = STAMP_READ(offset + 8)
+ * destination uint32_t[3] = STAMP_READ(offset + 12)
+ */
+#define STAMP_SHIFT(fb, n) ((n) ? (fb) : (fb) << 4)
+#define STAMP_MASK (0xf << 4)
+#define STAMP_READ(o) (*(uint32_t *)((char *)stamp + (o)))
/*
* Initialize a 'rasops_info' descriptor for this depth.
@@ -63,8 +87,25 @@
if (FONT_IS_ALPHA(ri->ri_font)) {
ri->ri_ops.putchar = rasops32_putchar_aa;
- } else
+ return;
+ }
+
+ switch (ri->ri_font->fontwidth) {
+#ifndef RASOPS_SMALL
+ case 8:
+ ri->ri_ops.putchar = rasops32_putchar8;
+ break;
+ case 12:
+ ri->ri_ops.putchar = rasops32_putchar12;
+ break;
+ case 16:
+ ri->ri_ops.putchar = rasops32_putchar16;
+ break;
+#endif
+ default:
ri->ri_ops.putchar = rasops32_putchar;
+ break;
+ }
}
/*
@@ -243,3 +284,433 @@
*rp++ = clr[1];
}
}
+
+#ifndef RASOPS_SMALL
+/*
+ * Recompute the blitting stamp.
+ */
+static void
+rasops32_makestamp(struct rasops_info *ri, long attr)
+{
+ uint32_t fg, bg;
+ int i;
+
+ fg = ri->ri_devcmap[((uint32_t)attr >> 24) & 0xf];
+ bg = ri->ri_devcmap[((uint32_t)attr >> 16) & 0xf];
+ stamp_attr = attr;
+
+ for (i = 0; i < 64; i += 4) {
+ stamp[i + 0] = (i & 32 ? fg : bg);
+ stamp[i + 1] = (i & 16 ? fg : bg);
+ stamp[i + 2] = (i & 8 ? fg : bg);
+ stamp[i + 3] = (i & 4 ? fg : bg);
+ }
+}
+
+/*
+ * Put a single character. This is for 8-pixel wide fonts.
+ */
+static void
+rasops32_putchar8(void *cookie, int row, int col, u_int uc, long attr)
+{
+ struct rasops_info *ri = (struct rasops_info *)cookie;
+ struct wsdisplay_font *font = PICK_FONT(ri, uc);
+ int height, so, fs;
+ uint32_t *rp, *hrp = NULL;
+ uint8_t *fr;
+
+ hrp = NULL; /* XXX GCC */
+
+#ifdef RASOPS_CLIPPING
+ /* Catches 'row < 0' case too */
+ if ((unsigned)row >= (unsigned)ri->ri_rows)
+ return;
+
+ if ((unsigned)col >= (unsigned)ri->ri_cols)
+ return;
+#endif
+
+ /* check if character fits into font limits */
+ if (!CHAR_IN_FONT(uc, font))
+ return;
+
+ /* Can't risk remaking the stamp if it's already in use */
+ if (stamp_mutex++) {
+ stamp_mutex--;
+ rasops32_putchar(cookie, row, col, uc, attr);
+ return;
+ }
+
+ /* Recompute stamp? */
+ if (attr != stamp_attr)
+ rasops32_makestamp(ri, attr);
+
+ rp = (uint32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
+ if (ri->ri_hwbits)
+ hrp = (uint32_t *)(ri->ri_hwbits + row*ri->ri_yscale +
+ col*ri->ri_xscale);
+
+ height = font->fontheight;
+
+ if (uc == ' ') {
+ while (height--) {
+ rp[0] = rp[1] = rp[2] = rp[3] =
+ rp[4] = rp[5] = rp[6] = rp[7] = stamp[0];
+ DELTA(rp, ri->ri_stride, uint32_t *);
+ if (ri->ri_hwbits) {
+ hrp[0] = hrp[1] = hrp[2] = hrp[3] =
+ hrp[4] = hrp[5] = hrp[6] = hrp[7] = stamp[0];
+ DELTA(hrp, ri->ri_stride, uint32_t *);
+ }
+ }
+ } else {
+ fr = FONT_GLYPH(uc, font, ri);
+ fs = font->stride;
+
+ while (height--) {
+ uint32_t tmp0, tmp1, tmp2, tmp3;
+
+ so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK;
+ tmp0 = STAMP_READ(so);
+ tmp1 = STAMP_READ(so + 4);
+ tmp2 = STAMP_READ(so + 8);
+ tmp3 = STAMP_READ(so + 12);
+ rp[0] = tmp0;
+ rp[1] = tmp1;
+ rp[2] = tmp2;
+ rp[3] = tmp3;
+ if (ri->ri_hwbits) {
+ hrp[0] = tmp0;
+ hrp[1] = tmp1;
+ hrp[2] = tmp2;
+ hrp[3] = tmp3;
+ }
+
+ so = STAMP_SHIFT(fr[0], 0) & STAMP_MASK;
+ tmp0 = STAMP_READ(so);
+ tmp1 = STAMP_READ(so + 4);
+ tmp2 = STAMP_READ(so + 8);
+ tmp3 = STAMP_READ(so + 12);
+ rp[4] = tmp0;
+ rp[5] = tmp1;
+ rp[6] = tmp2;
+ rp[7] = tmp3;
+ if (ri->ri_hwbits) {
+ hrp[4] = tmp0;
+ hrp[5] = tmp1;
+ hrp[6] = tmp2;
+ hrp[7] = tmp3;
+ }
+
+ fr += fs;
+ DELTA(rp, ri->ri_stride, uint32_t *);
+ if (ri->ri_hwbits)
+ DELTA(hrp, ri->ri_stride, uint32_t *);
+ }
+ }
+
+ /* Do underline */
+ if ((attr & WSATTR_UNDERLINE) != 0) {
+ DELTA(rp, -(ri->ri_stride << 1), uint32_t *);
+ rp[0] = rp[1] = rp[2] = rp[3] =
+ rp[4] = rp[5] = rp[6] = rp[7] = stamp[60];
+ if (ri->ri_hwbits)
+ hrp[0] = hrp[1] = hrp[2] = hrp[3] =
+ hrp[4] = hrp[5] = hrp[6] = hrp[7] = stamp[60];
+ }
+
+ stamp_mutex--;
+}
+
+/*
+ * Put a single character. This is for 12-pixel wide fonts.
+ */
+static void
+rasops32_putchar12(void *cookie, int row, int col, u_int uc, long attr)
+{
+ struct rasops_info *ri = (struct rasops_info *)cookie;
+ struct wsdisplay_font *font = PICK_FONT(ri, uc);
+ int height, so, fs;
+ uint32_t *rp, *hrp = NULL;
+ uint8_t *fr;
+
+ hrp = NULL; /* XXX GCC */
+
+#ifdef RASOPS_CLIPPING
+ /* Catches 'row < 0' case too */
+ if ((unsigned)row >= (unsigned)ri->ri_rows)
+ return;
+
+ if ((unsigned)col >= (unsigned)ri->ri_cols)
+ return;
+#endif
+
+ /* check if character fits into font limits */
+ if (!CHAR_IN_FONT(uc, font))
+ return;
+
+ /* Can't risk remaking the stamp if it's already in use */
+ if (stamp_mutex++) {
+ stamp_mutex--;
+ rasops32_putchar(cookie, row, col, uc, attr);
+ return;
+ }
+
+ /* Recompute stamp? */
+ if (attr != stamp_attr)
+ rasops32_makestamp(ri, attr);
+
+ rp = (uint32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
+ if (ri->ri_hwbits)
+ hrp = (uint32_t *)(ri->ri_hwbits + row*ri->ri_yscale +
+ col*ri->ri_xscale);
+
+ height = font->fontheight;
+
+ if (uc == ' ') {
+ while (height--) {
+ rp[0] = rp[1] = rp[2] = rp[3] =
+ rp[4] = rp[5] = rp[6] = rp[7] =
+ rp[8] = rp[9] = rp[10] = rp[11] = stamp[0];
+ DELTA(rp, ri->ri_stride, uint32_t *);
+ if (ri->ri_hwbits) {
+ hrp[0] = hrp[1] = hrp[2] = hrp[3] =
+ hrp[4] = hrp[5] = hrp[6] = hrp[7] =
+ hrp[8] = hrp[9] = hrp[10] = hrp[11] =
+ stamp[0];
+ DELTA(hrp, ri->ri_stride, uint32_t *);
+ }
+ }
+ } else {
+ fr = FONT_GLYPH(uc, font, ri);
+ fs = font->stride;
+
+ while (height--) {
+ uint32_t tmp0, tmp1, tmp2, tmp3;
+
+ so = STAMP_SHIFT(fr[0], 1) & STAMP_MASK;
+ tmp0 = STAMP_READ(so);
+ tmp1 = STAMP_READ(so + 4);
+ tmp2 = STAMP_READ(so + 8);
+ tmp3 = STAMP_READ(so + 12);
+ rp[0] = tmp0;
+ rp[1] = tmp1;
+ rp[2] = tmp2;
+ rp[3] = tmp3;
+ if (ri->ri_hwbits) {
+ hrp[0] = tmp0;
+ hrp[1] = tmp1;
+ hrp[2] = tmp2;
+ hrp[3] = tmp3;
+ }
+
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