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freebsd-skq/sys/dev/syscons/scgfbrndr.c

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/*-
* 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.
*
* $FreeBSD$
*/
#include "opt_syscons.h"
#include "opt_vga.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <machine/console.h>
#include <dev/fb/fbreg.h>
#include <dev/fb/vgareg.h>
#include <dev/syscons/syscons.h>
#include <isa/isareg.h>
#ifndef SC_RENDER_DEBUG
#define SC_RENDER_DEBUG 0
#endif
static vr_clear_t vga_txtclear;
static vr_draw_border_t vga_txtborder;
static vr_draw_t vga_txtdraw;
static vr_set_cursor_t vga_txtcursor_shape;
static vr_draw_cursor_t vga_txtcursor;
static vr_blink_cursor_t vga_txtblink;
#ifndef SC_NO_CUTPASTE
static vr_draw_mouse_t vga_txtmouse;
#else
#define vga_txtmouse (vr_draw_mouse_t *)vga_nop
#endif
#ifdef SC_PIXEL_MODE
static vr_clear_t vga_pxlclear;
static vr_draw_border_t vga_pxlborder;
static vr_draw_t vga_egadraw;
static vr_draw_t vga_vgadraw;
static vr_set_cursor_t vga_pxlcursor_shape;
static vr_draw_cursor_t vga_pxlcursor;
static vr_blink_cursor_t vga_pxlblink;
#ifndef SC_NO_CUTPASTE
static vr_draw_mouse_t vga_pxlmouse;
#else
#define vga_pxlmouse (vr_draw_mouse_t *)vga_nop
#endif
#endif /* SC_PIXEL_MODE */
#ifndef SC_NO_MODE_CHANGE
static vr_draw_border_t vga_grborder;
#endif
static void vga_nop(scr_stat *scp, ...);
static struct linker_set vga_set;
static sc_rndr_sw_t txtrndrsw = {
vga_txtclear,
vga_txtborder,
vga_txtdraw,
vga_txtcursor_shape,
vga_txtcursor,
vga_txtblink,
(vr_set_mouse_t *)vga_nop,
vga_txtmouse,
};
RENDERER(mda, 0, txtrndrsw, vga_set);
RENDERER(cga, 0, txtrndrsw, vga_set);
RENDERER(ega, 0, txtrndrsw, vga_set);
RENDERER(vga, 0, txtrndrsw, vga_set);
#ifdef SC_PIXEL_MODE
static sc_rndr_sw_t egarndrsw = {
vga_pxlclear,
vga_pxlborder,
vga_egadraw,
vga_pxlcursor_shape,
vga_pxlcursor,
vga_pxlblink,
(vr_set_mouse_t *)vga_nop,
vga_pxlmouse,
};
RENDERER(ega, PIXEL_MODE, egarndrsw, vga_set);
static sc_rndr_sw_t vgarndrsw = {
vga_pxlclear,
vga_pxlborder,
vga_vgadraw,
vga_pxlcursor_shape,
vga_pxlcursor,
vga_pxlblink,
(vr_set_mouse_t *)vga_nop,
vga_pxlmouse,
};
RENDERER(vga, PIXEL_MODE, vgarndrsw, vga_set);
#endif /* SC_PIXEL_MODE */
#ifndef SC_NO_MODE_CHANGE
static sc_rndr_sw_t grrndrsw = {
(vr_clear_t *)vga_nop,
vga_grborder,
(vr_draw_t *)vga_nop,
(vr_set_cursor_t *)vga_nop,
(vr_draw_cursor_t *)vga_nop,
(vr_blink_cursor_t *)vga_nop,
(vr_set_mouse_t *)vga_nop,
(vr_draw_mouse_t *)vga_nop,
};
RENDERER(cga, GRAPHICS_MODE, grrndrsw, vga_set);
RENDERER(ega, GRAPHICS_MODE, grrndrsw, vga_set);
RENDERER(vga, GRAPHICS_MODE, grrndrsw, vga_set);
#endif /* SC_NO_MODE_CHANGE */
RENDERER_MODULE(vga, vga_set);
#ifndef SC_NO_CUTPASTE
static u_short mouse_and_mask[16] = {
0xc000, 0xe000, 0xf000, 0xf800, 0xfc00, 0xfe00, 0xff00, 0xff80,
0xfe00, 0x1e00, 0x1f00, 0x0f00, 0x0f00, 0x0000, 0x0000, 0x0000
};
static u_short mouse_or_mask[16] = {
0x0000, 0x4000, 0x6000, 0x7000, 0x7800, 0x7c00, 0x7e00, 0x6800,
0x0c00, 0x0c00, 0x0600, 0x0600, 0x0000, 0x0000, 0x0000, 0x0000
};
#endif
static void
vga_nop(scr_stat *scp, ...)
{
}
/* text mode renderer */
static void
vga_txtclear(scr_stat *scp, int c, int attr)
{
sc_vtb_clear(&scp->scr, c, attr);
}
static void
vga_txtborder(scr_stat *scp, int color)
{
(*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color);
}
static void
vga_txtdraw(scr_stat *scp, int from, int count, int flip)
{
vm_offset_t p;
int c;
int a;
if (from + count > scp->xsize*scp->ysize)
count = scp->xsize*scp->ysize - from;
if (flip) {
for (p = sc_vtb_pointer(&scp->scr, from); count-- > 0; ++from) {
c = sc_vtb_getc(&scp->vtb, from);
a = sc_vtb_geta(&scp->vtb, from);
a = (a & 0x8800) | ((a & 0x7000) >> 4)
| ((a & 0x0700) << 4);
p = sc_vtb_putchar(&scp->scr, p, c, a);
}
} else {
sc_vtb_copy(&scp->vtb, from, &scp->scr, from, count);
}
}
static void
vga_txtcursor_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
(*vidsw[scp->sc->adapter]->set_hw_cursor_shape)(scp->sc->adp,
base, height,
scp->font_size, blink);
}
static void
vga_txtcursor(scr_stat *scp, int at, int blink, int on, int flip)
{
video_adapter_t *adp;
int cursor_attr;
if (scp->cursor_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;
(*vidsw[adp->va_index]->set_hw_cursor)(adp,
at%scp->xsize,
at/scp->xsize);
} else {
if (scp->status & VR_CURSOR_ON)
(*vidsw[adp->va_index]->set_hw_cursor)(adp,
-1, -1);
scp->status &= ~VR_CURSOR_ON;
}
} else {
scp->status &= ~VR_CURSOR_BLINK;
if (on) {
scp->status |= VR_CURSOR_ON;
cursor_attr = sc_vtb_geta(&scp->vtb, at);
scp->cursor_saveunder_char = sc_vtb_getc(&scp->scr, at);
scp->cursor_saveunder_attr = cursor_attr;
if ((cursor_attr & 0x7000) == 0x7000) {
cursor_attr &= 0x8f00;
if ((cursor_attr & 0x0700) == 0)
cursor_attr |= 0x0700;
} else {
cursor_attr |= 0x7000;
if ((cursor_attr & 0x0700) == 0x0700)
cursor_attr &= 0xf000;
}
if (flip)
cursor_attr = (cursor_attr & 0x8800)
| ((cursor_attr & 0x7000) >> 4)
| ((cursor_attr & 0x0700) << 4);
sc_vtb_putc(&scp->scr, at,
sc_vtb_getc(&scp->scr, at),
cursor_attr);
} else {
cursor_attr = scp->cursor_saveunder_attr;
if (flip)
cursor_attr = (cursor_attr & 0x8800)
| ((cursor_attr & 0x7000) >> 4)
| ((cursor_attr & 0x0700) << 4);
if (scp->status & VR_CURSOR_ON)
sc_vtb_putc(&scp->scr, at,
scp->cursor_saveunder_char,
cursor_attr);
scp->status &= ~VR_CURSOR_ON;
}
}
}
static void
vga_txtblink(scr_stat *scp, int at, int flip)
{
}
#ifndef SC_NO_CUTPASTE
static void
draw_txtmouse(scr_stat *scp, int x, int y)
{
#ifndef SC_ALT_MOUSE_IMAGE
u_char font_buf[128];
u_short cursor[32];
u_char c;
int pos;
int xoffset, yoffset;
int crtc_addr;
int i;
/* prepare mousepointer char's bitmaps */
pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff;
bcopy(scp->font + sc_vtb_getc(&scp->vtb, pos)*scp->font_size,
&font_buf[0], scp->font_size);
bcopy(scp->font + sc_vtb_getc(&scp->vtb, pos + 1)*scp->font_size,
&font_buf[32], scp->font_size);
bcopy(scp->font
+ sc_vtb_getc(&scp->vtb, pos + scp->xsize)*scp->font_size,
&font_buf[64], scp->font_size);
bcopy(scp->font
+ sc_vtb_getc(&scp->vtb, pos + scp->xsize + 1)*scp->font_size,
&font_buf[96], scp->font_size);
for (i = 0; i < scp->font_size; ++i) {
cursor[i] = font_buf[i]<<8 | font_buf[i+32];
cursor[i + scp->font_size] = font_buf[i+64]<<8 | font_buf[i+96];
}
/* now and-or in the mousepointer image */
xoffset = x%8;
yoffset = y%scp->font_size;
for (i = 0; i < 16; ++i) {
cursor[i + yoffset] =
(cursor[i + yoffset] & ~(mouse_and_mask[i] >> xoffset))
| (mouse_or_mask[i] >> xoffset);
}
for (i = 0; i < scp->font_size; ++i) {
font_buf[i] = (cursor[i] & 0xff00) >> 8;
font_buf[i + 32] = cursor[i] & 0xff;
font_buf[i + 64] = (cursor[i + scp->font_size] & 0xff00) >> 8;
font_buf[i + 96] = cursor[i + scp->font_size] & 0xff;
}
#if 1
/* wait for vertical retrace to avoid jitter on some videocards */
crtc_addr = scp->sc->adp->va_crtc_addr;
while (!(inb(crtc_addr + 6) & 0x08)) /* idle */ ;
#endif
c = scp->sc->mouse_char;
(*vidsw[scp->sc->adapter]->load_font)(scp->sc->adp, 0, 32, font_buf,
c, 4);
sc_vtb_putc(&scp->scr, pos, c, sc_vtb_geta(&scp->scr, pos));
/* FIXME: may be out of range! */
sc_vtb_putc(&scp->scr, pos + scp->xsize, c + 2,
sc_vtb_geta(&scp->scr, pos + scp->xsize));
if (x < (scp->xsize - 1)*8) {
sc_vtb_putc(&scp->scr, pos + 1, c + 1,
sc_vtb_geta(&scp->scr, pos + 1));
sc_vtb_putc(&scp->scr, pos + scp->xsize + 1, c + 3,
sc_vtb_geta(&scp->scr, pos + scp->xsize + 1));
}
#else /* SC_ALT_MOUSE_IMAGE */
/* Red, magenta and brown are mapped to green to to keep it readable */
static const int col_conv[16] = {
6, 6, 6, 6, 2, 2, 2, 6, 14, 14, 14, 14, 10, 10, 10, 14
};
int pos;
int color;
int a;
pos = (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff;
a = sc_vtb_geta(&scp->scr, pos);
if (scp->sc->adp->va_flags & V_ADP_COLOR)
color = (col_conv[(a & 0xf000) >> 12] << 12)
| ((a & 0x0f00) | 0x0800);
else
color = ((a & 0xf000) >> 4) | ((a & 0x0f00) << 4);
sc_vtb_putc(&scp->scr, pos, sc_vtb_getc(&scp->scr, pos), color);
#endif /* SC_ALT_MOUSE_IMAGE */
}
static void
remove_txtmouse(scr_stat *scp, int x, int y)
{
}
static void
vga_txtmouse(scr_stat *scp, int x, int y, int on)
{
if (on)
draw_txtmouse(scp, x, y);
else
remove_txtmouse(scp, x, y);
}
#endif /* SC_NO_CUTPASTE */
#ifdef SC_PIXEL_MODE
/* pixel (raster text) mode renderer */
static void
vga_pxlclear(scr_stat *scp, int c, int attr)
{
vm_offset_t p;
int line_width;
int lines;
int i;
/* XXX: we are just filling the screen with the background color... */
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, 0x0003); /* data rotate/function select */
outw(GDCIDX, 0x0f01); /* set/reset enable */
outw(GDCIDX, 0xff08); /* bit mask */
outw(GDCIDX, ((attr & 0xf000) >> 4) | 0x00); /* set/reset */
line_width = scp->sc->adp->va_line_width;
lines = scp->ysize*scp->font_size;
p = scp->sc->adp->va_window + line_width*scp->yoff*scp->font_size
+ scp->xoff;
for (i = 0; i < lines; ++i) {
bzero_io((void *)p, scp->xsize);
p += line_width;
}
outw(GDCIDX, 0x0000); /* set/reset */
outw(GDCIDX, 0x0001); /* set/reset enable */
}
static void
vga_pxlborder(scr_stat *scp, int color)
{
vm_offset_t p;
int line_width;
int x;
int y;
int i;
(*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color);
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, 0x0003); /* data rotate/function select */
outw(GDCIDX, 0x0f01); /* set/reset enable */
outw(GDCIDX, 0xff08); /* bit mask */
outw(GDCIDX, (color << 8) | 0x00); /* set/reset */
line_width = scp->sc->adp->va_line_width;
p = scp->sc->adp->va_window;
if (scp->yoff > 0)
bzero_io((void *)p, line_width*scp->yoff*scp->font_size);
y = (scp->yoff + scp->ysize)*scp->font_size;
if (scp->ypixel > y)
bzero_io((void *)(p + line_width*y), line_width*(scp->ypixel - y));
y = scp->yoff*scp->font_size;
x = scp->xpixel/8 - scp->xoff - scp->xsize;
for (i = 0; i < scp->ysize*scp->font_size; ++i) {
if (scp->xoff > 0)
bzero_io((void *)(p + line_width*(y + i)), scp->xoff);
if (x > 0)
bzero_io((void *)(p + line_width*(y + i)
+ scp->xoff + scp->xsize), x);
}
outw(GDCIDX, 0x0000); /* set/reset */
outw(GDCIDX, 0x0001); /* set/reset enable */
}
static void
vga_egadraw(scr_stat *scp, int from, int count, int flip)
{
vm_offset_t d;
vm_offset_t e;
u_char *f;
u_short bg;
u_short col1, col2;
int line_width;
int i, j;
int a;
u_char c;
line_width = scp->sc->adp->va_line_width;
d = scp->sc->adp->va_window
+ scp->xoff
+ scp->yoff*scp->font_size*line_width
+ (from%scp->xsize)
+ scp->font_size*line_width*(from/scp->xsize);
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, 0x0003); /* data rotate/function select */
outw(GDCIDX, 0x0f01); /* set/reset enable */
bg = -1;
if (from + count > scp->xsize*scp->ysize)
count = scp->xsize*scp->ysize - from;
for (i = from; count-- > 0; ++i) {
a = sc_vtb_geta(&scp->vtb, i);
if (flip) {
col1 = ((a & 0x7000) >> 4) | (a & 0x0800);
col2 = ((a & 0x8000) >> 4) | (a & 0x0700);
} else {
col1 = (a & 0x0f00);
col2 = (a & 0xf000) >> 4;
}
/* set background color in EGA/VGA latch */
if (bg != col2) {
bg = col2;
outw(GDCIDX, bg | 0x00); /* set/reset */
outw(GDCIDX, 0xff08); /* bit mask */
writeb(d, 0);
c = readb(d); /* set bg color in the latch */
}
/* foreground color */
outw(GDCIDX, col1 | 0x00); /* set/reset */
e = d;
f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]);
for (j = 0; j < scp->font_size; ++j, ++f) {
outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */
writeb(e, 0);
e += line_width;
}
++d;
if ((i % scp->xsize) == scp->xsize - 1)
d += scp->xoff*2
+ (scp->font_size - 1)*line_width;
}
outw(GDCIDX, 0x0000); /* set/reset */
outw(GDCIDX, 0x0001); /* set/reset enable */
outw(GDCIDX, 0xff08); /* bit mask */
}
static void
vga_vgadraw(scr_stat *scp, int from, int count, int flip)
{
vm_offset_t d;
vm_offset_t e;
u_char *f;
u_short bg;
u_short col1, col2;
int line_width;
int i, j;
int a;
u_char c;
line_width = scp->sc->adp->va_line_width;
d = scp->sc->adp->va_window
+ scp->xoff
+ scp->yoff*scp->font_size*line_width
+ (from%scp->xsize)
+ scp->font_size*line_width*(from/scp->xsize);
outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */
outw(GDCIDX, 0x0003); /* data rotate/function select */
outw(GDCIDX, 0x0f01); /* set/reset enable */
outw(GDCIDX, 0xff08); /* bit mask */
bg = -1;
if (from + count > scp->xsize*scp->ysize)
count = scp->xsize*scp->ysize - from;
for (i = from; count-- > 0; ++i) {
a = sc_vtb_geta(&scp->vtb, i);
if (flip) {
col1 = ((a & 0x7000) >> 4) | (a & 0x0800);
col2 = ((a & 0x8000) >> 4) | (a & 0x0700);
} else {
col1 = (a & 0x0f00);
col2 = (a & 0xf000) >> 4;
}
/* set background color in EGA/VGA latch */
if (bg != col2) {
bg = col2;
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, bg | 0x00); /* set/reset */
writeb(d, 0);
c = readb(d); /* set bg color in the latch */
outw(GDCIDX, 0x0305); /* read mode 0, write mode 3 */
}
/* foreground color */
outw(GDCIDX, col1 | 0x00); /* set/reset */
e = d;
f = &(scp->font[sc_vtb_getc(&scp->vtb, i)*scp->font_size]);
for (j = 0; j < scp->font_size; ++j, ++f) {
writeb(e, *f);
e += line_width;
}
++d;
if ((i % scp->xsize) == scp->xsize - 1)
d += scp->xoff*2
+ (scp->font_size - 1)*line_width;
}
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, 0x0000); /* set/reset */
outw(GDCIDX, 0x0001); /* set/reset enable */
}
static void
vga_pxlcursor_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
}
static void
draw_pxlcursor(scr_stat *scp, int at, int on, int flip)
{
vm_offset_t d;
u_char *f;
int line_width;
int height;
int col;
int a;
int i;
u_char c;
line_width = scp->sc->adp->va_line_width;
d = scp->sc->adp->va_window
+ scp->xoff
+ scp->yoff*scp->font_size*line_width
+ (at%scp->xsize)
+ scp->font_size*line_width*(at/scp->xsize)
+ (scp->font_size - scp->cursor_base - 1)*line_width;
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, 0x0003); /* data rotate/function select */
outw(GDCIDX, 0x0f01); /* set/reset enable */
/* set background color in EGA/VGA latch */
a = sc_vtb_geta(&scp->vtb, at);
if (flip)
col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00);
else
col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4);
outw(GDCIDX, col | 0x00); /* set/reset */
outw(GDCIDX, 0xff08); /* bit mask */
writeb(d, 0);
c = readb(d); /* set bg color in the latch */
/* foreground color */
if (flip)
col = (on) ? (a & 0x0f00) : ((a & 0xf000) >> 4);
else
col = (on) ? ((a & 0xf000) >> 4) : (a & 0x0f00);
outw(GDCIDX, col | 0x00); /* set/reset */
f = &(scp->font[sc_vtb_getc(&scp->vtb, at)*scp->font_size
+ scp->font_size - scp->cursor_base - 1]);
height = imin(scp->cursor_height, scp->font_size);
for (i = 0; i < height; ++i, --f) {
outw(GDCIDX, (*f << 8) | 0x08); /* bit mask */
writeb(d, 0);
d -= line_width;
}
outw(GDCIDX, 0x0000); /* set/reset */
outw(GDCIDX, 0x0001); /* set/reset enable */
outw(GDCIDX, 0xff08); /* bit mask */
}
static int pxlblinkrate = 0;
static void
vga_pxlcursor(scr_stat *scp, int at, int blink, int on, int flip)
{
if (scp->cursor_height <= 0) /* the text cursor is disabled */
return;
if (on) {
if (!blink) {
scp->status |= VR_CURSOR_ON;
draw_pxlcursor(scp, at, on, flip);
} else if (++pxlblinkrate & 4) {
pxlblinkrate = 0;
scp->status ^= VR_CURSOR_ON;
draw_pxlcursor(scp, at,
scp->status & VR_CURSOR_ON,
flip);
}
} else {
if (scp->status & VR_CURSOR_ON)
draw_pxlcursor(scp, at, on, flip);
scp->status &= ~VR_CURSOR_ON;
}
if (blink)
scp->status |= VR_CURSOR_BLINK;
else
scp->status &= ~VR_CURSOR_BLINK;
}
static void
vga_pxlblink(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;
draw_pxlcursor(scp, at, scp->status & VR_CURSOR_ON, flip);
}
#ifndef SC_NO_CUTPASTE
static void
draw_pxlmouse(scr_stat *scp, int x, int y)
{
vm_offset_t p;
int line_width;
int xoff, yoff;
int ymax;
u_short m;
int i, j;
line_width = scp->sc->adp->va_line_width;
xoff = (x - scp->xoff*8)%8;
yoff = y - (y/line_width)*line_width;
ymax = imin(y + 16, scp->ypixel);
outw(GDCIDX, 0x0805); /* read mode 1, write mode 0 */
outw(GDCIDX, 0x0001); /* set/reset enable */
outw(GDCIDX, 0x0002); /* color compare */
outw(GDCIDX, 0x0007); /* color don't care */
outw(GDCIDX, 0xff08); /* bit mask */
outw(GDCIDX, 0x0803); /* data rotate/function select (and) */
p = scp->sc->adp->va_window + line_width*y + x/8;
if (x < scp->xpixel - 8) {
for (i = y, j = 0; i < ymax; ++i, ++j) {
m = ~(mouse_and_mask[j] >> xoff);
#ifdef __i386__
*(u_char *)p &= m >> 8;
*(u_char *)(p + 1) &= m;
#elif defined(__alpha__)
writeb(p, readb(p) & (m >> 8));
writeb(p + 1, readb(p + 1) & (m >> 8));
#endif
p += line_width;
}
} else {
xoff += 8;
for (i = y, j = 0; i < ymax; ++i, ++j) {
m = ~(mouse_and_mask[j] >> xoff);
#ifdef __i386__
*(u_char *)p &= m;
#elif defined(__alpha__)
writeb(p, readb(p) & (m >> 8));
#endif
p += line_width;
}
}
outw(GDCIDX, 0x1003); /* data rotate/function select (or) */
p = scp->sc->adp->va_window + line_width*y + x/8;
if (x < scp->xpixel - 8) {
for (i = y, j = 0; i < ymax; ++i, ++j) {
m = mouse_or_mask[j] >> xoff;
#ifdef __i386__
*(u_char *)p &= m >> 8;
*(u_char *)(p + 1) &= m;
#elif defined(__alpha__)
writeb(p, readb(p) & (m >> 8));
writeb(p + 1, readb(p + 1) & (m >> 8));
#endif
p += line_width;
}
} else {
for (i = y, j = 0; i < ymax; ++i, ++j) {
m = mouse_or_mask[j] >> xoff;
#ifdef __i386__
*(u_char *)p &= m;
#elif defined(__alpha__)
writeb(p, readb(p) & (m >> 8));
#endif
p += line_width;
}
}
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, 0x0003); /* data rotate/function select */
}
static void
remove_pxlmouse(scr_stat *scp, int x, int y)
{
vm_offset_t p;
int col, row;
int pos;
int line_width;
int ymax;
int i;
/* erase the mouse cursor image */
col = x/8 - scp->xoff;
row = y/scp->font_size - scp->yoff;
pos = row*scp->xsize + col;
i = (col < scp->xsize - 1) ? 2 : 1;
(*scp->rndr->draw)(scp, pos, i, FALSE);
if (row < scp->ysize - 1)
(*scp->rndr->draw)(scp, pos + scp->xsize, i, FALSE);
/* paint border if necessary */
line_width = scp->sc->adp->va_line_width;
outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */
outw(GDCIDX, 0x0003); /* data rotate/function select */
outw(GDCIDX, 0x0f01); /* set/reset enable */
outw(GDCIDX, 0xff08); /* bit mask */
outw(GDCIDX, (scp->border << 8) | 0x00); /* set/reset */
if (row == scp->ysize - 1) {
i = (scp->ysize + scp->yoff)*scp->font_size;
ymax = imin(i + scp->font_size, scp->ypixel);
p = scp->sc->adp->va_window + i*line_width + scp->xoff + col;
if (col < scp->xsize - 1) {
for (; i < ymax; ++i) {
writeb(p, 0);
writeb(p + 1, 0);
p += line_width;
}
} else {
for (; i < ymax; ++i) {
writeb(p, 0);
p += line_width;
}
}
}
if ((col == scp->xsize - 1) && (scp->xoff > 0)) {
i = (row + scp->yoff)*scp->font_size;
ymax = imin(i + scp->font_size*2, scp->ypixel);
p = scp->sc->adp->va_window + i*line_width
+ scp->xoff + scp->xsize;
for (; i < ymax; ++i) {
writeb(p, 0);
p += line_width;
}
}
outw(GDCIDX, 0x0000); /* set/reset */
outw(GDCIDX, 0x0001); /* set/reset enable */
}
static void
vga_pxlmouse(scr_stat *scp, int x, int y, int on)
{
if (on)
draw_pxlmouse(scp, x, y);
else
remove_pxlmouse(scp, x, y);
}
#endif /* SC_NO_CUTPASTE */
#endif /* SC_PIXEL_MODE */
#ifndef SC_NO_MODE_CHANGE
/* graphics mode renderer */
static void
vga_grborder(scr_stat *scp, int color)
{
(*vidsw[scp->sc->adapter]->set_border)(scp->sc->adp, color);
}
#endif
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