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Add rasops15_putchar_aa() for greyscale fonts.

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Based on rasops8_putchar_aa() and rasops32_putchar_aa().
This commit is contained in:
jakllsch 2017-01-25 14:53:43 +00:00
parent 00db07f741
commit 1730769371
1 changed files with 112 additions and 15 deletions
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127
sys/dev/rasops/rasops15.c
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@ -1,4 +1,4 @@
/* $NetBSD: rasops15.c,v 1.20 2012/04/17 12:06:25 macallan Exp $ */
/* $NetBSD: rasops15.c,v 1.21 2017/01/25 14:53:43 jakllsch Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rasops15.c,v 1.20 2012/04/17 12:06:25 macallan Exp $");
__KERNEL_RCSID(0, "$NetBSD: rasops15.c,v 1.21 2017/01/25 14:53:43 jakllsch Exp $");
#include "opt_rasops.h"
@ -43,6 +43,7 @@ __KERNEL_RCSID(0, "$NetBSD: rasops15.c,v 1.20 2012/04/17 12:06:25 macallan Exp $
#include <dev/rasops/rasops.h>
static void rasops15_putchar(void *, int, int, u_int, long attr);
static void rasops15_putchar_aa(void *, int, int, u_int, long attr);
#ifndef RASOPS_SMALL
static void rasops15_putchar8(void *, int, int, u_int, long attr);
static void rasops15_putchar12(void *, int, int, u_int, long attr);
@ -78,23 +79,27 @@ void
rasops15_init(struct rasops_info *ri)
{
switch (ri->ri_font->fontwidth) {
if (FONT_IS_ALPHA(ri->ri_font)) {
ri->ri_ops.putchar = rasops15_putchar_aa;
} else {
switch (ri->ri_font->fontwidth) {
#ifndef RASOPS_SMALL
case 8:
ri->ri_ops.putchar = rasops15_putchar8;
break;
case 8:
ri->ri_ops.putchar = rasops15_putchar8;
break;
case 12:
ri->ri_ops.putchar = rasops15_putchar12;
break;
case 12:
ri->ri_ops.putchar = rasops15_putchar12;
break;
case 16:
ri->ri_ops.putchar = rasops15_putchar16;
break;
case 16:
ri->ri_ops.putchar = rasops15_putchar16;
break;
#endif /* !RASOPS_SMALL */
default:
ri->ri_ops.putchar = rasops15_putchar;
break;
default:
ri->ri_ops.putchar = rasops15_putchar;
break;
}
}
if (ri->ri_rnum == 0) {
@ -203,6 +208,98 @@ rasops15_putchar(void *cookie, int row, int col, u_int uc, long attr)
}
}
static void
rasops15_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
{
int width, height, cnt, clr[2];
struct rasops_info *ri = (struct rasops_info *)cookie;
struct wsdisplay_font *font = PICK_FONT(ri, uc);
int16_t *dp, *rp;
uint8_t *rrp;
u_char *fr;
uint16_t buffer[64]; /* XXX */
int x, y, r, g, b, aval;
int r1, g1, b1, r0, g0, b0, fgo, bgo;
#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;
rrp = (ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
rp = (int16_t *)rrp;
height = font->fontheight;
width = font->fontwidth;
clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf];
clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf];
if (uc == ' ') {
for (cnt = 0; cnt < width; cnt++)
buffer[cnt] = clr[0];
while (height--) {
dp = rp;
DELTA(rp, ri->ri_stride, int16_t *);
memcpy(dp, buffer, width << 1);
}
} else {
fr = WSFONT_GLYPH(uc, font);
fgo = ((attr >> 24) & 0xf) * 3;
bgo = ((attr >> 16) & 0xf) * 3;
r0 = rasops_cmap[bgo];
r1 = rasops_cmap[fgo];
g0 = rasops_cmap[bgo + 1];
g1 = rasops_cmap[fgo + 1];
b0 = rasops_cmap[bgo + 2];
b1 = rasops_cmap[fgo + 2];
for (y = 0; y < height; y++) {
dp = (uint16_t *)(rrp + ri->ri_stride * y);
for (x = 0; x < width; x++) {
aval = *fr;
if (aval == 0) {
buffer[x] = clr[0];
} else if (aval == 255) {
buffer[x] = clr[1];
} else {
r = aval * r1 + (255 - aval) * r0;
g = aval * g1 + (255 - aval) * g0;
b = aval * b1 + (255 - aval) * b0;
buffer[x] =
((r >> (16 - ri->ri_rnum)) <<
ri->ri_rpos) |
((g >> (16 - ri->ri_gnum)) <<
ri->ri_gpos) |
((b >> (16 - ri->ri_bnum)) <<
ri->ri_bpos);
}
fr++;
}
memcpy(dp, buffer, width << 1);
}
}
/* Do underline */
if ((attr & 1) != 0) {
rp = (uint16_t *)rrp;
DELTA(rp, (ri->ri_stride * (height - 2)), int16_t *);
while (width--)
*rp++ = clr[1];
}
}
#ifndef RASOPS_SMALL
/*
* Recompute the (2x2)x1 blitting stamp.