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split putchar method into one for alpha fonts and one for bitmap fonts

This commit is contained in:
macallan 2012-01-03 23:15:11 +00:00
parent 0012d4bd2f
commit d5062c9e69
1 changed files with 123 additions and 55 deletions
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178
sys/dev/rasops/rasops32.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: rasops32.c,v 1.22 2011/12/27 06:24:40 macallan Exp $ */
/* $NetBSD: rasops32.c,v 1.23 2012/01/03 23:15:11 macallan Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.22 2011/12/27 06:24:40 macallan Exp $");
__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.23 2012/01/03 23:15:11 macallan Exp $");
#include "opt_rasops.h"
@ -43,6 +43,7 @@ __KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.22 2011/12/27 06:24:40 macallan Exp $
#include <dev/rasops/rasops.h>
static void rasops32_putchar(void *, int, int, u_int, long attr);
static void rasops32_putchar_aa(void *, int, int, u_int, long attr);
/*
* Initialize a 'rasops_info' descriptor for this depth.
@ -60,12 +61,16 @@ rasops32_init(struct rasops_info *ri)
ri->ri_bpos = 16;
}
ri->ri_ops.putchar = rasops32_putchar;
if (FONT_IS_ALPHA(ri->ri_font)) {
ri->ri_ops.putchar = rasops32_putchar_aa;
} else
ri->ri_ops.putchar = rasops32_putchar;
}
/*
* Paint a single character.
*/
static void
rasops32_putchar(void *cookie, int row, int col, u_int uc, long attr)
{
@ -122,60 +127,123 @@ rasops32_putchar(void *cookie, int row, int col, u_int uc, long attr)
fr = (u_char *)font->data + uc * ri->ri_fontscale;
fs = font->stride;
if (font->stride < width) {
/* this is a mono font */
while (height--) {
dp = rp;
fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) |
(fr[0] << 24);
fr += fs;
DELTA(rp, ri->ri_stride, int32_t *);
if (ri->ri_hwbits) {
hp = hrp;
DELTA(hrp, ri->ri_stride, int32_t *);
}
for (cnt = width; cnt; cnt--) {
*dp++ = clr[(fb >> 31) & 1];
if (ri->ri_hwbits)
*hp++ = clr[(fb >> 31) & 1];
fb <<= 1;
}
while (height--) {
dp = rp;
fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) |
(fr[0] << 24);
fr += fs;
DELTA(rp, ri->ri_stride, int32_t *);
if (ri->ri_hwbits) {
hp = hrp;
DELTA(hrp, ri->ri_stride, int32_t *);
}
} else {
/* this is an alpha map */
int x, y, r, g, b, aval;
int r1, g1, b1, r0, g0, b0;
r0 = (clr[0] >> 16) & 0xff;
r1 = (clr[1] >> 16) & 0xff;
g0 = (clr[0] >> 8) & 0xff;
g1 = (clr[1] >> 8) & 0xff;
b0 = clr[0] & 0xff;
b1 = clr[1] & 0xff;
for (y = 0; y < height; y++) {
dp = rp + ri->ri_width * y;
for (x = 0; x < width; x++) {
aval = *fr;
if (aval == 0) {
*dp = clr[0];
} else if (aval == 255) {
*dp = clr[1];
} else {
r = aval * r1 +
(255 - aval) * r0;
g = aval * g1 +
(255 - aval) * g0;
b = aval * b1 +
(255 - aval) * b0;
*dp = (r & 0xff00) << 8 |
(g & 0xff00) |
(b & 0xff00) >> 8;
}
dp++;
fr++;
}
for (cnt = width; cnt; cnt--) {
*dp++ = clr[(fb >> 31) & 1];
if (ri->ri_hwbits)
*hp++ = clr[(fb >> 31) & 1];
fb <<= 1;
}
}
}
/* Do underline */
if ((attr & 1) != 0) {
DELTA(rp, -(ri->ri_stride << 1), int32_t *);
if (ri->ri_hwbits)
DELTA(hrp, -(ri->ri_stride << 1), int32_t *);
while (width--) {
*rp++ = clr[1];
if (ri->ri_hwbits)
*hrp++ = clr[1];
}
}
}
static void
rasops32_putchar_aa(void *cookie, int row, int col, u_int uc, long attr)
{
int width, height, cnt, fs, clr[2];
struct rasops_info *ri = (struct rasops_info *)cookie;
struct wsdisplay_font *font = PICK_FONT(ri, uc);
int32_t *dp, *rp, *hp, *hrp;
u_char *fr;
int x, y, r, g, b, aval;
int r1, g1, b1, r0, g0, b0;
hp = hrp = NULL;
#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 (uc < font->firstchar ||
(uc - font->firstchar) >= font->numchars)
return;
rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
if (ri->ri_hwbits)
hrp = (int32_t *)(ri->ri_hwbits + row*ri->ri_yscale +
col*ri->ri_xscale);
height = font->fontheight;
width = font->fontwidth;
clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf];
clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf];
if (uc == ' ') {
while (height--) {
dp = rp;
DELTA(rp, ri->ri_stride, int32_t *);
if (ri->ri_hwbits) {
hp = hrp;
DELTA(hrp, ri->ri_stride, int32_t *);
}
for (cnt = width; cnt; cnt--) {
*dp++ = clr[0];
if (ri->ri_hwbits)
*hp++ = clr[0];
}
}
} else {
uc -= font->firstchar;
fr = (u_char *)font->data + uc * ri->ri_fontscale;
fs = font->stride;
r0 = (clr[0] >> 16) & 0xff;
r1 = (clr[1] >> 16) & 0xff;
g0 = (clr[0] >> 8) & 0xff;
g1 = (clr[1] >> 8) & 0xff;
b0 = clr[0] & 0xff;
b1 = clr[1] & 0xff;
for (y = 0; y < height; y++) {
dp = rp + ri->ri_width * y;
for (x = 0; x < width; x++) {
aval = *fr;
if (aval == 0) {
*dp = clr[0];
} else if (aval == 255) {
*dp = clr[1];
} else {
r = aval * r1 + (255 - aval) * r0;
g = aval * g1 + (255 - aval) * g0;
b = aval * b1 + (255 - aval) * b0;
*dp = (r & 0xff00) << 8 |
(g & 0xff00) |
(b & 0xff00) >> 8;
}
dp++;
fr++;
}
}
}