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freebsd-dev/sys/dev/syscons/scgfbrndr.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* All rights reserved.
*
* 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 as
* the first lines of this file unmodified.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
*
* Copyright (c) 2000 Andrew Miklic
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_syscons.h"
#include "opt_gfb.h"
#ifdef __powerpc__
#include "opt_ofwfb.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/fbio.h>
#include <sys/consio.h>
#include <machine/bus.h>
#include <dev/fb/fbreg.h>
#include <dev/syscons/syscons.h>
#ifndef SC_RENDER_DEBUG
#define SC_RENDER_DEBUG 0
#endif
static vr_clear_t gfb_clear;
static vr_draw_border_t gfb_border;
static vr_draw_t gfb_draw;
static vr_set_cursor_t gfb_cursor_shape;
static vr_draw_cursor_t gfb_cursor;
static vr_blink_cursor_t gfb_blink;
#ifndef SC_NO_CUTPASTE
static vr_draw_mouse_t gfb_mouse;
#else
#define gfb_mouse (vr_draw_mouse_t *)gfb_nop
#endif
static void gfb_nop(scr_stat *scp);
sc_rndr_sw_t txtrndrsw = {
(vr_init_t *)gfb_nop,
gfb_clear,
gfb_border,
gfb_draw,
gfb_cursor_shape,
gfb_cursor,
gfb_blink,
(vr_set_mouse_t *)gfb_nop,
gfb_mouse,
};
#ifdef SC_PIXEL_MODE
sc_rndr_sw_t gfbrndrsw = {
(vr_init_t *)gfb_nop,
gfb_clear,
gfb_border,
gfb_draw,
gfb_cursor_shape,
gfb_cursor,
gfb_blink,
(vr_set_mouse_t *)gfb_nop,
gfb_mouse,
};
#endif /* SC_PIXEL_MODE */
#ifndef SC_NO_MODE_CHANGE
sc_rndr_sw_t grrndrsw = {
(vr_init_t *)gfb_nop,
(vr_clear_t *)gfb_nop,
gfb_border,
(vr_draw_t *)gfb_nop,
(vr_set_cursor_t *)gfb_nop,
(vr_draw_cursor_t *)gfb_nop,
(vr_blink_cursor_t *)gfb_nop,
(vr_set_mouse_t *)gfb_nop,
(vr_draw_mouse_t *)gfb_nop,
};
#endif /* SC_NO_MODE_CHANGE */
#ifndef SC_NO_CUTPASTE
#ifdef __sparc64__
static u_char mouse_pointer[22 * 2] = {
0x00, 0x00, /* ............ */
0x80, 0x00, /* *........... */
0xc0, 0x00, /* **.......... */
0xe0, 0x00, /* ***......... */
0xf0, 0x00, /* ****........ */
0xf8, 0x00, /* *****....... */
0xfc, 0x00, /* ******...... */
0xfe, 0x00, /* *******..... */
0xff, 0x00, /* ********.... */
0xff, 0x80, /* *********... */
0xfc, 0xc0, /* ******..**.. */
0xdc, 0x00, /* **.***...... */
0x8e, 0x00, /* *...***..... */
0x0e, 0x00, /* ....***..... */
0x07, 0x00, /* .....***.... */
0x04, 0x00, /* .....*...... */
0x00, 0x00, /* ............ */
0x00, 0x00, /* ............ */
0x00, 0x00, /* ............ */
0x00, 0x00, /* ............ */
0x00, 0x00, /* ............ */
0x00, 0x00 /* ............ */
};
#else
static u_char mouse_pointer[16] = {
0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
};
#endif
#endif
static void
gfb_nop(scr_stat *scp)
{
}
/* text mode renderer */
static void
gfb_clear(scr_stat *scp, int c, int attr)
{
vidd_clear(scp->sc->adp);
}
static void
gfb_border(scr_stat *scp, int color)
{
vidd_set_border(scp->sc->adp, color);
}
static void
gfb_draw(scr_stat *scp, int from, int count, int flip)
{
int c;
int a;
int i, n;
video_adapter_t *adp;
adp = scp->sc->adp;
/*
Determine if we need to scroll based on the offset
and the number of characters to be displayed...
*/
if (from + count > scp->xsize*scp->ysize) {
/*
Calculate the number of characters past the end of the
visible screen...
*/
count = (from + count) -
(adp->va_info.vi_width * adp->va_info.vi_height);
/*
Calculate the number of rows past the end of the visible
screen...
*/
n = (count / adp->va_info.vi_width) + 1;
/* Scroll to make room for new text rows... */
vidd_copy(adp, n, 0, n);
#if 0
vidd_clear(adp, n);
#endif
/* Display new text rows... */
vidd_puts(adp, from,
(u_int16_t *)sc_vtb_pointer(&scp->vtb, from), count);
}
/*
We don't need to scroll, so we can just put the characters
all-at-once...
*/
else {
/*
Determine the method by which we are to display characters
(are we going to print forwards or backwards?
do we need to do a character-by-character copy, then?)...
*/
if (flip)
for (i = count; i-- > 0; ++from) {
c = sc_vtb_getc(&scp->vtb, from);
a = sc_vtb_geta(&scp->vtb, from) >> 8;
vidd_putc(adp, from, c,
(a >> 4) | ((a & 0xf) << 4));
}
else {
vidd_puts(adp, from,
(u_int16_t *)sc_vtb_pointer(&scp->vtb, from),
count);
}
}
}
static void
gfb_cursor_shape(scr_stat *scp, int base, int height, int blink)
{
if (base < 0 || base >= scp->font_size)
return;
/* the caller may set height <= 0 in order to disable the cursor */
#if 0
scp->cursor_base = base;
scp->cursor_height = height;
#endif
vidd_set_hw_cursor_shape(scp->sc->adp, base, height, scp->font_size,
blink);
}
static int pxlblinkrate = 0;
#if defined(__sparc64__) || defined(SC_OFWFB)
static void
gfb_cursor(scr_stat *scp, int at, int blink, int on, int flip)
{
video_adapter_t *adp;
int a, c;
if (scp->curs_attr.height <= 0) /* the text cursor is disabled */
return;
adp = scp->sc->adp;
if(blink) {
scp->status |= VR_CURSOR_BLINK;
if (on) {
scp->status |= VR_CURSOR_ON;
vidd_set_hw_cursor(adp, at%scp->xsize, at/scp->xsize);
} else {
if (scp->status & VR_CURSOR_ON)
vidd_set_hw_cursor(adp, -1, -1);
scp->status &= ~VR_CURSOR_ON;
}
} else {
scp->status &= ~VR_CURSOR_BLINK;
if(on) {
scp->status |= VR_CURSOR_ON;
vidd_putc(scp->sc->adp, scp->cursor_oldpos,
sc_vtb_getc(&scp->vtb, scp->cursor_oldpos),
sc_vtb_geta(&scp->vtb, scp->cursor_oldpos) >> 8);
a = sc_vtb_geta(&scp->vtb, at) >> 8;
c = sc_vtb_getc(&scp->vtb, at);
vidd_putc(scp->sc->adp, at, c,
(a >> 4) | ((a & 0xf) << 4));
} else {
if (scp->status & VR_CURSOR_ON)
vidd_putc(scp->sc->adp, at,
sc_vtb_getc(&scp->vtb, at),
sc_vtb_geta(&scp->vtb, at) >> 8);
scp->status &= ~VR_CURSOR_ON;
}
}
}
#else
static void
gfb_cursor(scr_stat *scp, int at, int blink, int on, int flip)
{
video_adapter_t *adp;
adp = scp->sc->adp;
if (scp->curs_attr.height <= 0)
/* the text cursor is disabled */
return;
if (on) {
if (!blink) {
scp->status |= VR_CURSOR_ON;
vidd_set_hw_cursor(adp, at%scp->xsize, at/scp->xsize);
} else if (++pxlblinkrate & 4) {
pxlblinkrate = 0;
scp->status ^= VR_CURSOR_ON;
if(scp->status & VR_CURSOR_ON)
vidd_set_hw_cursor(adp, at%scp->xsize,
at/scp->xsize);
else
vidd_set_hw_cursor(adp, -1, -1);
}
} else {
if (scp->status & VR_CURSOR_ON)
vidd_set_hw_cursor(adp, at%scp->xsize, at/scp->xsize);
scp->status &= ~VR_CURSOR_ON;
}
if (blink)
scp->status |= VR_CURSOR_BLINK;
else
scp->status &= ~VR_CURSOR_BLINK;
}
#endif
static void
gfb_blink(scr_stat *scp, int at, int flip)
{
if (!(scp->status & VR_CURSOR_BLINK))
return;
if (!(++pxlblinkrate & 4))
return;
pxlblinkrate = 0;
scp->status ^= VR_CURSOR_ON;
gfb_cursor(scp, at, scp->status & VR_CURSOR_BLINK,
scp->status & VR_CURSOR_ON, flip);
}
#ifndef SC_NO_CUTPASTE
static void
gfb_mouse(scr_stat *scp, int x, int y, int on)
{
#ifdef __sparc64__
vidd_putm(scp->sc->adp, x, y, mouse_pointer,
on ? 0xffffffff : 0x0, 22, 12);
#else
if (on) {
vidd_putm(scp->sc->adp, x, y, mouse_pointer,
0xffffffff, 16, 8);
} else {
/* XXX: removal is incomplete for h/w cursors and borders. */
}
#endif
}
#endif /* SC_NO_CUTPASTE */
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