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NetBSD/sys/arch/amiga/dev/ite_cc.c

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/* $NetBSD: ite_cc.c,v 1.25 1996/04/21 21:11:54 veego Exp $ */
/*
* Copyright (c) 1994 Christian E. Hopps
* 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.
* 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 Christian E. Hopps.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "grfcc.h"
#if NGRFCC > 0
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/systm.h>
#include <sys/queue.h>
#include <sys/termios.h>
#include <dev/cons.h>
#include <machine/cpu.h>
#include <amiga/dev/itevar.h>
#include <amiga/dev/iteioctl.h>
#include <amiga/amiga/cc.h>
#include <amiga/amiga/device.h>
#include <amiga/dev/grfabs_reg.h>
#include <amiga/dev/grfioctl.h>
#include <amiga/dev/grfvar.h>
#include <amiga/dev/grf_ccreg.h>
#include <amiga/dev/viewioctl.h>
#include <amiga/dev/viewvar.h>
#ifndef KFONT_CUSTOM
#ifdef KFONT_8X11
#define kernel_font_width kernel_font_width_8x11
#define kernel_font_height kernel_font_height_8x11
#define kernel_font_baseline kernel_font_baseline_8x11
#define kernel_font_boldsmear kernel_font_boldsmear_8x11
#define kernel_font_lo kernel_font_lo_8x11
#define kernel_font_hi kernel_font_hi_8x11
#define kernel_font kernel_font_8x11
#define kernel_cursor kernel_cursor_8x11
#else
#define kernel_font_width kernel_font_width_8x8
#define kernel_font_height kernel_font_height_8x8
#define kernel_font_baseline kernel_font_baseline_8x8
#define kernel_font_boldsmear kernel_font_boldsmear_8x8
#define kernel_font_lo kernel_font_lo_8x8
#define kernel_font_hi kernel_font_hi_8x8
#define kernel_font kernel_font_8x8
#define kernel_cursor kernel_cursor_8x8
#endif
#endif
extern u_char kernel_font_width, kernel_font_height, kernel_font_baseline;
extern short kernel_font_boldsmear;
extern u_char kernel_font_lo, kernel_font_hi;
extern u_char kernel_font[], kernel_cursor[];
/*
* This is what ip->priv points to;
* it contains local variables for custom-chip ites.
*/
struct ite_priv {
view_t *view; /* the view for this ite. */
u_char **row_ptr; /* array of pointers into the bitmap */
u_long row_bytes;
u_long cursor_opt;
u_int *column_offset; /* array of offsets for columns */
u_int row_offset; /* the row offset */
u_short width; /* the bitmap width */
u_short underline; /* where the underline goes */
u_short ft_x; /* the font width */
u_short ft_y; /* the font height */
u_char *font_cell[256]; /* the font pointer */
};
typedef struct ite_priv ipriv_t;
void view_deinit __P((struct ite_softc *));
void view_init __P((struct ite_softc *));
static void putc8 __P((struct ite_softc *, int, int, int, int));
static void clear8 __P((struct ite_softc *, int, int, int, int));
static void scroll8 __P((struct ite_softc *, int, int, int, int));
static void cursor32 __P((struct ite_softc *, int));
static void scrollbmap __P((bmap_t *, u_short, u_short, u_short, u_short,
short, short, u_char));
/* patchable */
int ite_default_x = 0; /* def leftedge offset */
int ite_default_y = 0; /* def topedge offset */
int ite_default_width = 640; /* def width */
int ite_default_depth = 2; /* def depth */
#if defined (GRF_NTSC)
int ite_default_height = 400; /* def NTSC height */
#elif defined (GRF_PAL)
int ite_default_height = 512; /* def PAL height */
#else
int ite_default_height = 400; /* def NON-PAL/NTSC height (?) */
#endif
int ite_newsize __P((struct ite_softc *, struct itewinsize *));
static void putc_nm __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
static void putc_in __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
static void putc_ul __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
static void putc_ul_in __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
static void putc_bd __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
static void putc_bd_in __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
static void putc_bd_ul __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
static void putc_bd_ul_in __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
/*
* called from grf_cc to return console priority
*/
int
grfcc_cnprobe()
{
return(CN_INTERNAL);
}
/*
* called from grf_cc to init ite portion of
* grf_softc struct
*/
void
grfcc_iteinit(gp)
struct grf_softc *gp;
{
gp->g_itecursor = cursor32;
gp->g_iteputc = putc8;
gp->g_iteclear = clear8;
gp->g_itescroll = scroll8;
gp->g_iteinit = view_init;
gp->g_itedeinit = view_deinit;
}
int
ite_newsize(ip, winsz)
struct ite_softc *ip;
struct itewinsize *winsz;
{
extern struct view_softc views[];
struct view_size vs;
ipriv_t *cci = ip->priv;
u_long i;
int error;
vs.x = winsz->x;
vs.y = winsz->y;
vs.width = winsz->width;
vs.height = winsz->height;
vs.depth = winsz->depth;
error = viewioctl(0, VIOCSSIZE, (caddr_t)&vs, -1, NULL); /* XXX type of vs ? */
/*
* Reinitialize our structs
*/
cci->view = views[0].view;
/* -1 for bold. */
ip->cols = (cci->view->display.width - 1) / ip->ftwidth;
ip->rows = cci->view->display.height / ip->ftheight;
/*
* save new values so that future opens use them
* this may not be correct when we implement Virtual Consoles
*/
ite_default_height = cci->view->display.height;
ite_default_width = cci->view->display.width;
ite_default_x = cci->view->display.x;
ite_default_y = cci->view->display.y;
ite_default_depth = cci->view->bitmap->depth;
if (cci->row_ptr)
free_chipmem(cci->row_ptr);
if (cci->column_offset)
free_chipmem(cci->column_offset);
cci->row_ptr = alloc_chipmem(sizeof(u_char *) * ip->rows);
cci->column_offset = alloc_chipmem(sizeof(u_int) * ip->cols);
if (cci->row_ptr == NULL || cci->column_offset == NULL)
panic("no chipmem for itecc data");
cci->width = cci->view->bitmap->bytes_per_row << 3;
cci->underline = ip->ftbaseline + 1;
cci->row_offset = cci->view->bitmap->bytes_per_row
+ cci->view->bitmap->row_mod;
cci->ft_x = ip->ftwidth;
cci->ft_y = ip->ftheight;
cci->row_bytes = cci->row_offset * ip->ftheight;
cci->row_ptr[0] = VDISPLAY_LINE (cci->view, 0, 0);
for (i = 1; i < ip->rows; i++)
cci->row_ptr[i] = cci->row_ptr[i-1] + cci->row_bytes;
/* initialize the column offsets */
cci->column_offset[0] = 0;
for (i = 1; i < ip->cols; i++)
cci->column_offset[i] = cci->column_offset[i - 1] + cci->ft_x;
/* initialize the font cell pointers */
cci->font_cell[ip->font_lo] = ip->font;
for (i=ip->font_lo+1; i<=ip->font_hi; i++)
cci->font_cell[i] = cci->font_cell[i-1] + ip->ftheight;
return (error);
}
void
view_init(ip)
register struct ite_softc *ip;
{
struct itewinsize wsz;
ipriv_t *cci;
cci = ip->priv;
if (cci)
return;
ip->font = kernel_font;
ip->font_lo = kernel_font_lo;
ip->font_hi = kernel_font_hi;
ip->ftwidth = kernel_font_width;
ip->ftheight = kernel_font_height;
ip->ftbaseline = kernel_font_baseline;
ip->ftboldsmear = kernel_font_boldsmear;
/* Find the correct set of rendering routines for this font. */
if (ip->ftwidth > 8)
panic("kernel font size not supported");
cci = alloc_chipmem(sizeof (*cci));
if (cci == NULL)
panic("no memory for console device.");
ip->priv = cci;
cci->cursor_opt = 0;
cci->view = NULL;
cci->row_ptr = NULL;
cci->column_offset = NULL;
wsz.x = ite_default_x;
wsz.y = ite_default_y;
wsz.width = ite_default_width;
wsz.height = ite_default_height;
wsz.depth = ite_default_depth;
ite_newsize (ip, &wsz);
cc_mode(ip->grf, GM_GRFON, NULL, 0, 0);
}
int
ite_grf_ioctl (ip, cmd, addr, flag, p)
struct ite_softc *ip;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
struct winsize ws;
struct itewinsize *is;
ipriv_t *cci;
int error;
cci = ip->priv;
error = 0;
switch (cmd) {
case ITEIOCGWINSZ:
is = (struct itewinsize *)addr;
is->x = cci->view->display.x;
is->y = cci->view->display.y;
is->width = cci->view->display.width;
is->height = cci->view->display.height;
is->depth = cci->view->bitmap->depth;
break;
case ITEIOCSWINSZ:
is = (struct itewinsize *)addr;
if (ite_newsize(ip, is))
error = ENOMEM;
else {
ws.ws_row = ip->rows;
ws.ws_col = ip->cols;
ws.ws_xpixel = cci->view->display.width;
ws.ws_ypixel = cci->view->display.height;
ite_reset (ip);
/*
* XXX tell tty about the change
* XXX this is messy, but works
*/
iteioctl(0, TIOCSWINSZ, (caddr_t)&ws, 0, p);
}
break;
case ITEIOCDSPWIN:
cc_mode(ip->grf, GM_GRFON, NULL, 0, 0);
break;
case ITEIOCREMWIN:
cc_mode(ip->grf, GM_GRFOFF, NULL, 0, 0);
break;
case VIOCSCMAP:
case VIOCGCMAP:
/*
* XXX needs to be fixed when multiple console implemented
* XXX watchout for that -1 its not really the kernel talking
* XXX these two commands don't use the proc pointer though
*/
error = viewioctl(0, cmd, addr, -1, p);
break;
default:
error = -1;
break;
}
return (error);
}
void
view_deinit(ip)
struct ite_softc *ip;
{
ip->flags &= ~ITE_INITED;
}
/*** (M<8)-by-N routines ***/
static void
cursor32(struct ite_softc *ip, int flag)
{
int cend, ofs, h, cstart, dr_plane;
u_char *pl;
ipriv_t *cci;
bmap_t *bm;
view_t *v;
cci = ip->priv;
v = cci->view;
bm = v->bitmap;
dr_plane = (bm->depth > 1 ? bm->depth-1 : 0);
if (flag == END_CURSOROPT)
cci->cursor_opt--;
else if (flag == START_CURSOROPT) {
if (!cci->cursor_opt)
cursor32 (ip, ERASE_CURSOR);
cci->cursor_opt++;
return; /* if we are already opted. */
}
if (cci->cursor_opt)
return; /* if we are still nested. */
/* else we draw the cursor. */
cstart = 0;
cend = ip->ftheight-1;
pl = VDISPLAY_LINE(v, dr_plane, (ip->cursory * ip->ftheight + cstart));
ofs = (ip->cursorx * ip->ftwidth);
if (flag != DRAW_CURSOR && flag != END_CURSOROPT) {
/*
* erase the cursor
*/
int h;
if (dr_plane) {
for (h = cend; h >= 0; h--) {
asm("bfclr %0@{%1:%2}" : : "a" (pl),
"d" (ofs), "d" (ip->ftwidth));
pl += cci->row_offset;
}
} else {
for (h = cend; h >= 0; h--) {
asm("bfchg %0@{%1:%2}" : : "a" (pl),
"d" (ofs), "d" (ip->ftwidth));
pl += cci->row_offset;
}
}
}
if (flag != DRAW_CURSOR && flag != MOVE_CURSOR &&
flag != END_CURSOROPT)
return;
/*
* draw the cursor
*/
ip->cursorx = min(ip->curx, ip->cols-1);
ip->cursory = ip->cury;
cstart = 0;
cend = ip->ftheight-1;
pl = VDISPLAY_LINE(v, dr_plane, ip->cursory * ip->ftheight + cstart);
ofs = ip->cursorx * ip->ftwidth;
if (dr_plane) {
for (h = cend; h >= 0; h--) {
asm("bfset %0@{%1:%2}" : : "a" (pl),
"d" (ofs), "d" (ip->ftwidth));
pl += cci->row_offset;
}
} else {
for (h = cend; h >= 0; h--) {
asm("bfchg %0@{%1:%2}" : : "a" (pl),
"d" (ofs), "d" (ip->ftwidth));
pl += cci->row_offset;
}
}
}
static inline
int expbits (int data)
{
int i, nd = 0;
if (data & 1)
nd |= 0x02;
for (i=1; i < 32; i++) {
if (data & (1 << i))
nd |= 0x5 << (i-1);
}
nd &= ~data;
return(~nd);
}
/* Notes: optimizations given the kernel_font_(width|height) #define'd.
* the dbra loops could be elminated and unrolled using height,
* the :width in the bfxxx instruction could be made immediate instead
* of a data register as it now is.
* the underline could be added when the loop is unrolled
*
* It would look like hell but be very fast.*/
static void
putc_nm (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
while (fh--) {
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (*f++), "a" (p), "d" (co), "d" (fw));
p += ro;
}
}
static void
putc_in (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
while (fh--) {
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~(*f++)), "a" (p), "d" (co), "d" (fw));
p += ro;
}
}
static void
putc_ul (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
int underline = cci->underline;
while (underline--) {
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (*f++), "a" (p), "d" (co), "d" (fw));
p += ro;
}
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (expbits(*f++)), "a" (p), "d" (co), "d" (fw));
p += ro;
underline = fh - cci->underline - 1;
while (underline--) {
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (*f++), "a" (p), "d" (co), "d" (fw));
p += ro;
}
}
static void
putc_ul_in (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
int underline = cci->underline;
while (underline--) {
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~(*f++)), "a" (p), "d" (co), "d" (fw));
p += ro;
}
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~expbits(*f++)), "a" (p), "d" (co), "d" (fw));
p += ro;
underline = fh - cci->underline - 1;
while (underline--) {
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~(*f++)), "a" (p), "d" (co), "d" (fw));
p += ro;
}
}
/* bold */
static void
putc_bd (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
u_short ch;
while (fh--) {
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (ch), "a" (p), "d" (co), "d" (fw+1));
p += ro;
}
}
static void
putc_bd_in (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
u_short ch;
while (fh--) {
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~(ch)), "a" (p), "d" (co), "d" (fw+1));
p += ro;
}
}
static void
putc_bd_ul (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
int underline = cci->underline;
u_short ch;
while (underline--) {
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (ch), "a" (p), "d" (co), "d" (fw+1));
p += ro;
}
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (expbits(ch)), "a" (p), "d" (co), "d" (fw+1));
p += ro;
underline = fh - cci->underline - 1;
while (underline--) {
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (ch), "a" (p), "d" (co), "d" (fw+1));
p += ro;
}
}
static void
putc_bd_ul_in (cci,p,f,co,ro,fw,fh)
register ipriv_t *cci;
register u_char *p;
register u_char *f;
register u_int co;
register u_int ro;
register u_int fw;
register u_int fh;
{
int underline = cci->underline;
u_short ch;
while (underline--) {
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~(ch)), "a" (p), "d" (co), "d" (fw+1));
p += ro;
}
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~expbits(ch)), "a" (p), "d" (co), "d" (fw+1));
p += ro;
underline = fh - cci->underline - 1;
while (underline--) {
ch = *f++;
ch |= ch << 1;
asm ("bfins %0,%1@{%2:%3}" : /* no output */ :
"d" (~(ch)), "a" (p), "d" (co), "d" (fw+1));
p += ro;
}
}
typedef void cc_putc_func __P((ipriv_t *, u_char *, u_char *, u_int, u_int,
u_int, u_int));
cc_putc_func *put_func[ATTR_ALL+1] = {
putc_nm,
putc_in,
putc_ul,
putc_ul_in,
putc_bd,
putc_bd_in,
putc_bd_ul,
putc_bd_ul_in,
/* no support for blink */
putc_nm,
putc_in,
putc_ul,
putc_ul_in,
putc_bd,
putc_bd_in,
putc_bd_ul,
putc_bd_ul_in
};
/* FIX: shouldn't this advance the cursor even if the character to
be output is not available in the font? -ch */
static void
putc8(ip, c, dy, dx, mode)
struct ite_softc *ip;
int c, dy, dx, mode;
{
ipriv_t *cci = (ipriv_t *) ip->priv;
/*
* if character is higher than font has glyphs, substitute
* highest glyph.
*/
c = (u_char)c;
if (c < ip->font_lo || c > ip->font_hi)
c = ip->font_hi;
put_func[mode](cci, cci->row_ptr[dy], cci->font_cell[c],
cci->column_offset[dx], cci->row_offset, cci->ft_x, cci->ft_y);
}
static void
clear8(struct ite_softc *ip, int sy, int sx, int h, int w)
{
ipriv_t *cci = (ipriv_t *) ip->priv;
bmap_t *bm = cci->view->bitmap;
if ((sx == 0) && (w == ip->cols))
{
/* common case: clearing whole lines */
while (h--)
{
int i;
u_char *ptr = cci->row_ptr[sy];
for (i=0; i < ip->ftheight; i++) {
bzero(ptr, bm->bytes_per_row);
ptr += bm->bytes_per_row + bm->row_mod; /* don't get any smart
ideas, becuase this is for
interleaved bitmaps */
}
sy++;
}
}
else
{
/* clearing only part of a line */
/* XXX could be optimized MUCH better, but is it worth the trouble? */
while (h--)
{
u_char *pl = cci->row_ptr[sy];
int ofs = sx * ip->ftwidth;
int i, j;
for (i = w-1; i >= 0; i--)
{
u_char *ppl = pl;
for (j = ip->ftheight-1; j >= 0; j--)
{
asm("bfclr %0@{%1:%2}"
: : "a" (ppl), "d" (ofs), "d" (ip->ftwidth));
ppl += bm->row_mod + bm->bytes_per_row;
}
ofs += ip->ftwidth;
}
sy++;
}
}
}
/* Note: sx is only relevant for SCROLL_LEFT or SCROLL_RIGHT. */
static void
scroll8(ip, sy, sx, count, dir)
register struct ite_softc *ip;
register int sy;
int dir, sx, count;
{
bmap_t *bm = ((ipriv_t *)ip->priv)->view->bitmap;
u_char *pl = ((ipriv_t *)ip->priv)->row_ptr[sy];
if (dir == SCROLL_UP)
{
int dy = sy - count;
/*FIX: add scroll bitmap call */
cursor32(ip, ERASE_CURSOR);
scrollbmap (bm, 0, dy*ip->ftheight,
bm->bytes_per_row >> 3, (ip->bottom_margin-dy+1)*ip->ftheight,
0, -(count*ip->ftheight), 0x1);
/* if (ip->cursory <= bot || ip->cursory >= dy) {
ip->cursory -= count;
} */
}
else if (dir == SCROLL_DOWN)
{
/* FIX: add scroll bitmap call */
cursor32(ip, ERASE_CURSOR);
scrollbmap (bm, 0, sy*ip->ftheight,
bm->bytes_per_row >> 3, (ip->bottom_margin-sy+1)*ip->ftheight,
0, count*ip->ftheight, 0x1);
/* if (ip->cursory <= bot || ip->cursory >= sy) {
ip->cursory += count;
} */
}
else if (dir == SCROLL_RIGHT)
{
int sofs = (ip->cols - count) * ip->ftwidth;
int dofs = (ip->cols) * ip->ftwidth;
int i, j;
cursor32(ip, ERASE_CURSOR);
for (j = ip->ftheight-1; j >= 0; j--)
{
int sofs2 = sofs, dofs2 = dofs;
for (i = (ip->cols - (sx + count))-1; i >= 0; i--)
{
int t;
sofs2 -= ip->ftwidth;
dofs2 -= ip->ftwidth;
asm("bfextu %1@{%2:%3},%0"
: "=d" (t)
: "a" (pl), "d" (sofs2), "d" (ip->ftwidth));
asm("bfins %3,%0@{%1:%2}"
: : "a" (pl), "d" (dofs2), "d" (ip->ftwidth), "d" (t));
}
pl += bm->row_mod + bm->bytes_per_row;
}
}
else /* SCROLL_LEFT */
{
int sofs = (sx) * ip->ftwidth;
int dofs = (sx - count) * ip->ftwidth;
int i, j;
cursor32(ip, ERASE_CURSOR);
for (j = ip->ftheight-1; j >= 0; j--)
{
int sofs2 = sofs, dofs2 = dofs;
for (i = (ip->cols - sx)-1; i >= 0; i--)
{
int t;
asm("bfextu %1@{%2:%3},%0"
: "=d" (t)
: "a" (pl), "d" (sofs2), "d" (ip->ftwidth));
asm("bfins %3,%0@{%1:%2}"
: : "a" (pl), "d" (dofs2), "d" (ip->ftwidth), "d" (t));
sofs2 += ip->ftwidth;
dofs2 += ip->ftwidth;
}
pl += bm->row_mod + bm->bytes_per_row;
}
}
}
void
scrollbmap (bmap_t *bm, u_short x, u_short y, u_short width, u_short height, short dx, short dy, u_char mask)
{
u_short depth = bm->depth;
u_short lwpr = bm->bytes_per_row >> 2;
if (dx) {
/* FIX: */ panic ("delta x not supported in scroll bitmap yet.");
}
if (bm->flags & BMF_INTERLEAVED) {
height *= depth;
depth = 1;
}
if (dy == 0) {
return;
}
if (dy > 0) {
int i;
for (i=0; i < depth && mask; i++, mask >>= 1) {
if (0x1 & mask) {
u_long *pl = (u_long *)bm->plane[i];
u_long *src_y = pl + (lwpr*y);
u_long *dest_y = pl + (lwpr*(y+dy));
u_long count = lwpr*(height-dy);
u_long *clr_y = src_y;
u_long clr_count = dest_y - src_y;
u_long bc, cbc;
src_y += count - 1;
dest_y += count - 1;
bc = count >> 4;
count &= 0xf;
while (bc--) {
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
*dest_y-- = *src_y--; *dest_y-- = *src_y--;
}
while (count--) {
*dest_y-- = *src_y--;
}
cbc = clr_count >> 4;
clr_count &= 0xf;
while (cbc--) {
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
}
while (clr_count--) {
*clr_y++ = 0;
}
}
}
} else if (dy < 0) {
int i;
for (i=0; i < depth && mask; i++, mask >>= 1) {
if (0x1 & mask) {
u_long *pl = (u_long *)bm->plane[i];
u_long *src_y = pl + (lwpr*(y-dy));
u_long *dest_y = pl + (lwpr*y);
long count = lwpr*(height + dy);
u_long *clr_y = dest_y + count;
u_long clr_count = src_y - dest_y;
u_long bc, cbc;
bc = count >> 4;
count &= 0xf;
while (bc--) {
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
*dest_y++ = *src_y++; *dest_y++ = *src_y++;
}
while (count--) {
*dest_y++ = *src_y++;
}
cbc = clr_count >> 4;
clr_count &= 0xf;
while (cbc--) {
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
*clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0; *clr_y++ = 0;
}
while (clr_count--) {
*clr_y++ = 0;
}
}
}
}
}
#endif /* NGRFCC */
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