NetBSD/sys/dev/wsfont/wsfont.c

491 lines
11 KiB
C

/* $NetBSD: wsfont.c,v 1.13 2000/06/13 13:37:06 ad Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wsfont.c,v 1.13 2000/06/13 13:37:06 ad Exp $");
#include "opt_wsfont.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/malloc.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wsfont/wsfont.h>
#undef HAVE_FONT
#ifdef FONT_QVSS8x15
#define HAVE_FONT 1
#include <dev/wsfont/qvss8x15.h>
#endif
#ifdef FONT_GALLANT12x22
#define HAVE_FONT 1
#include <dev/wsfont/gallant12x22.h>
#endif
#ifdef FONT_LUCIDA16x29
#define HAVE_FONT 1
#include <dev/wsfont/lucida16x29.h>
#endif
#ifdef FONT_VT220L8x8
#define HAVE_FONT 1
#include <dev/wsfont/vt220l8x8.h>
#endif
#ifdef FONT_VT220L8x10
#define HAVE_FONT 1
#include <dev/wsfont/vt220l8x10.h>
#endif
/* Make sure we always have at least one font. */
#ifndef HAVE_FONT
#define HAVE_FONT 1
#define FONT_BOLD8x16 1
#endif
#ifdef FONT_BOLD8x16
#include <dev/wsfont/bold8x16.h>
#endif
/* Placeholder struct used for linked list */
struct font {
struct font *next;
struct font *prev;
struct wsdisplay_font *font;
u_short lockcount;
u_short cookie;
u_short flg;
};
/* Our list of built-in fonts */
static struct font *list, builtin_fonts[] = {
#ifdef FONT_BOLD8x16
{ NULL, NULL, &bold8x16, 0, 1, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
#ifdef FONT_ISO8x16
{ NULL, NULL, &iso8x16, 0, 2, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
#ifdef FONT_COURIER11x18
{ NULL, NULL, &courier11x18, 0, 3, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
#ifdef FONT_GALLANT12x22
{ NULL, NULL, &gallant12x22, 0, 4, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
#ifdef FONT_LUCIDA16x29
{ NULL, NULL, &lucida16x29, 0, 5, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
#ifdef FONT_QVSS8x15
{ NULL, NULL, &qvss8x15, 0, 6, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
#ifdef FONT_VT220L8x8
{ NULL, NULL, &vt220l8x8, 0, 7, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
#ifdef FONT_VT220L8x10
{ NULL, NULL, &vt220l8x10, 0, 8, WSFONT_STATIC | WSFONT_BUILTIN },
#endif
{ NULL, NULL, NULL, 0 },
};
/* Reverse the bit order in a byte */
static const u_char reverse[256] = {
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
};
static struct font *wsfont_find0 __P((int));
static void wsfont_revbit __P((struct wsdisplay_font *));
static void wsfont_revbyte __P((struct wsdisplay_font *));
/*
* Reverse the bit order of a font
*/
static void
wsfont_revbit(font)
struct wsdisplay_font *font;
{
u_char *p, *m;
p = (u_char *)font->data;
m = p + font->stride * font->numchars * font->fontheight;
while (p < m)
*p++ = reverse[*p];
}
/*
* Reverse the byte order of a font
*/
static void
wsfont_revbyte(font)
struct wsdisplay_font *font;
{
int x, l, r, nr;
u_char *rp;
if (font->stride == 1)
return;
rp = (u_char *)font->data;
nr = font->numchars * font->fontheight;
while (nr--) {
l = 0;
r = font->stride - 1;
while (l < r) {
x = rp[l];
rp[l] = rp[r];
rp[r] = x;
l++, r--;
}
rp += font->stride;
}
}
/*
* Enumarate the list of fonts
*/
void
wsfont_enum(cb)
void (*cb) __P((char *, int, int, int));
{
struct wsdisplay_font *f;
struct font *ent;
int s;
s = splhigh();
for (ent = list; ent; ent = ent->next) {
f = ent->font;
cb(f->name, f->fontwidth, f->fontheight, f->stride);
}
splx(s);
}
/*
* Initialize list with WSFONT_BUILTIN fonts
*/
void
wsfont_init(void)
{
static int again;
int i;
if (again != 0)
return;
again = 1;
for (i = 0; builtin_fonts[i].font != NULL; i++) {
builtin_fonts[i].next = list;
list = &builtin_fonts[i];
}
}
/*
* Find a font by cookie. Called at splhigh.
*/
static struct font *
wsfont_find0(cookie)
int cookie;
{
struct font *ent;
for (ent = list; ent != NULL; ent = ent->next)
if (ent->cookie == cookie)
return (ent);
return (NULL);
}
/*
* Find a font.
*/
int
wsfont_find(name, width, height, stride)
char *name;
int width, height, stride;
{
struct font *ent;
int s;
s = splhigh();
for (ent = list; ent != NULL; ent = ent->next) {
if (height != 0 && ent->font->fontheight != height)
continue;
if (width != 0 && ent->font->fontwidth != width)
continue;
if (stride != 0 && ent->font->stride != stride)
continue;
if (name != NULL && strcmp(ent->font->name, name) != 0)
continue;
splx(s);
return (ent->cookie);
}
splx(s);
return (-1);
}
/*
* Add a font to the list.
*/
#ifdef notyet
int
wsfont_add(font, copy)
struct wsdisplay_font *font;
int copy;
{
static int cookiegen = 666;
struct font *ent;
size_t size;
int s;
s = splhigh();
/* Don't allow exact duplicates */
if (wsfont_find(font->name, font->fontwidth, font->fontheight,
font->stride) >= 0) {
splx(s);
return (-1);
}
MALLOC(ent, struct font *, sizeof *ent, M_DEVBUF, M_WAITOK);
ent->lockcount = 0;
ent->flg = 0;
ent->cookie = cookiegen++;
ent->next = list;
ent->prev = NULL;
/* Is this font statically allocated? */
if (!copy) {
ent->font = font;
ent->flg = WSFONT_STATIC;
} else {
MALLOC(ent->font, struct wsdisplay_font *, sizeof *ent->font,
M_DEVBUF, M_WAITOK);
memcpy(ent->font, font, sizeof(*ent->font));
size = font->fontheight * font->numchars * font->stride;
MALLOC(ent->font->data, void *, size, M_DEVBUF, M_WAITOK);
memcpy(ent->font->data, font->data, size);
ent->flg = 0;
}
/* Now link into the list and return */
list = ent;
splx(s);
return (0);
}
#endif
/*
* Remove a font.
*/
#ifdef notyet
int
wsfont_remove(cookie)
int cookie;
{
struct font *ent;
int s;
s = splhigh();
if ((ent = wsfont_find0(cookie)) == NULL) {
splx(s);
return (-1);
}
if ((ent->flg & WSFONT_BUILTIN) != 0 || ent->lockcount != 0) {
splx(s);
return (-1);
}
/* Don't free statically allocated font data */
if ((ent->flg & WSFONT_STATIC) != 0) {
FREE(ent->font->data, M_DEVBUF);
FREE(ent->font, M_DEVBUF);
}
/* Remove from list, free entry */
if (ent->prev)
ent->prev->next = ent->next;
else
list = ent->next;
if (ent->next)
ent->next->prev = ent->prev;
FREE(ent, M_DEVBUF);
splx(s);
return (0);
}
#endif
/*
* Lock a given font and return new lockcount. This fails if the cookie
* is invalid, or if the font is already locked and the bit/byte order
* requested by the caller differs.
*/
int
wsfont_lock(cookie, ptr, bitorder, byteorder)
int cookie;
struct wsdisplay_font **ptr;
int bitorder, byteorder;
{
struct font *ent;
int s, lc;
s = splhigh();
if ((ent = wsfont_find0(cookie)) != NULL) {
if (bitorder && bitorder != ent->font->bitorder) {
if (ent->lockcount) {
splx(s);
return (-1);
}
wsfont_revbit(ent->font);
ent->font->bitorder = bitorder;
}
if (byteorder && byteorder != ent->font->byteorder) {
if (ent->lockcount) {
splx(s);
return (-1);
}
wsfont_revbyte(ent->font);
ent->font->byteorder = byteorder;
}
lc = ++ent->lockcount;
*ptr = ent->font;
} else
lc = -1;
splx(s);
return (lc);
}
/*
* Get font flags and lockcount.
*/
int
wsfont_getflg(cookie, flg, lc)
int cookie, *flg, *lc;
{
struct font *ent;
int s;
s = splhigh();
if ((ent = wsfont_find0(cookie)) != NULL) {
*flg = ent->flg;
*lc = ent->lockcount;
}
splx(s);
return (ent != NULL ? 0 : -1);
}
/*
* Unlock a given font and return new lockcount.
*/
int
wsfont_unlock(cookie)
int cookie;
{
struct font *ent;
int s, lc;
s = splhigh();
if ((ent = wsfont_find0(cookie)) != NULL) {
if (ent->lockcount == 0)
panic("wsfont_unlock: font not locked\n");
lc = --ent->lockcount;
} else
lc = -1;
splx(s);
return (lc);
}