coreboot-kgpe-d16/payloads/libpayload/curses/PDCurses-3.4/sdl1/pdcdisp.c

302 lines
7.3 KiB
C

/* Public Domain Curses */
#include "pdcsdl.h"
RCSID("$Id: pdcdisp.c,v 1.35 2008/07/14 04:24:52 wmcbrine Exp $")
#include <stdlib.h>
#include <string.h>
#ifdef CHTYPE_LONG
# define A(x) ((chtype)x | A_ALTCHARSET)
chtype acs_map[128] =
{
A(0), A(1), A(2), A(3), A(4), A(5), A(6), A(7), A(8), A(9),
A(10), A(11), A(12), A(13), A(14), A(15), A(16), A(17), A(18),
A(19), A(20), A(21), A(22), A(23), A(24), A(25), A(26), A(27),
A(28), A(29), A(30), A(31), ' ', '!', '"', '#', '$', '%', '&',
'\'', '(', ')', '*',
A(0x1a), A(0x1b), A(0x18), A(0x19),
'/',
0xdb,
'1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=',
'>', '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
'X', 'Y', 'Z', '[', '\\', ']', '^', '_',
A(0x04), 0xb1,
'b', 'c', 'd', 'e',
0xf8, 0xf1, 0xb0, A(0x0f), 0xd9, 0xbf, 0xda, 0xc0, 0xc5, 0x2d,
0x2d, 0xc4, 0x2d, 0x5f, 0xc3, 0xb4, 0xc1, 0xc2, 0xb3, 0xf3,
0xf2, 0xe3, 0xd8, 0x9c, 0xf9,
A(127)
};
# undef A
#endif
Uint32 pdc_lastupdate = 0;
#define MAXRECT 200 /* maximum number of rects to queue up before
an update is forced; the number was chosen
arbitrarily */
static SDL_Rect uprect[MAXRECT]; /* table of rects to update */
static chtype oldch = (chtype)(-1); /* current attribute */
static int rectcount = 0; /* index into uprect */
static short foregr = -2, backgr = -2; /* current foreground, background */
/* do the real updates on a delay */
void PDC_update_rects(void)
{
if (rectcount)
{
/* if the maximum number of rects has been reached, we're
probably better off doing a full screen update */
if (rectcount == MAXRECT)
SDL_Flip(pdc_screen);
else
SDL_UpdateRects(pdc_screen, rectcount, uprect);
pdc_lastupdate = SDL_GetTicks();
rectcount = 0;
}
}
/* set the font colors to match the chtype's attribute */
static void _set_attr(chtype ch)
{
ch &= (A_COLOR|A_BOLD|A_BLINK|A_REVERSE);
if (oldch != ch)
{
short newfg, newbg;
if (SP->mono)
return;
PDC_pair_content(PAIR_NUMBER(ch), &newfg, &newbg);
newfg |= (ch & A_BOLD) ? 8 : 0;
newbg |= (ch & A_BLINK) ? 8 : 0;
if (ch & A_REVERSE)
{
short tmp = newfg;
newfg = newbg;
newbg = tmp;
}
if (newfg != foregr)
{
SDL_SetPalette(pdc_font, SDL_LOGPAL,
pdc_color + newfg, pdc_flastc, 1);
foregr = newfg;
}
if (newbg != backgr)
{
if (newbg == -1)
SDL_SetColorKey(pdc_font, SDL_SRCCOLORKEY, 0);
else
{
if (backgr == -1)
SDL_SetColorKey(pdc_font, 0, 0);
SDL_SetPalette(pdc_font, SDL_LOGPAL,
pdc_color + newbg, 0, 1);
}
backgr = newbg;
}
oldch = ch;
}
}
/* draw a cursor at (y, x) */
void PDC_gotoyx(int row, int col)
{
SDL_Rect src, dest;
chtype ch;
int oldrow, oldcol;
PDC_LOG(("PDC_gotoyx() - called: row %d col %d from row %d col %d\n",
row, col, SP->cursrow, SP->curscol));
if (SP->mono)
return;
oldrow = SP->cursrow;
oldcol = SP->curscol;
/* clear the old cursor */
PDC_transform_line(oldrow, oldcol, 1, curscr->_y[oldrow] + oldcol);
if (!SP->visibility)
return;
/* draw a new cursor by overprinting the existing character in
reverse, either the full cell (when visibility == 2) or the
lowest quarter of it (when visibility == 1) */
ch = curscr->_y[row][col] ^ A_REVERSE;
_set_attr(ch);
#ifdef CHTYPE_LONG
if (ch & A_ALTCHARSET && !(ch & 0xff80))
ch = acs_map[ch & 0x7f];
#endif
src.h = (SP->visibility == 1) ? pdc_fheight >> 2 : pdc_fheight;
src.w = pdc_fwidth;
dest.y = (row + 1) * pdc_fheight - src.h + pdc_yoffset;
dest.x = col * pdc_fwidth + pdc_xoffset;
src.x = (ch & 0xff) % 32 * pdc_fwidth;
src.y = (ch & 0xff) / 32 * pdc_fheight + (pdc_fheight - src.h);
SDL_BlitSurface(pdc_font, &src, pdc_screen, &dest);
if (oldrow != row || oldcol != col)
{
if (rectcount == MAXRECT)
PDC_update_rects();
uprect[rectcount++] = dest;
}
}
/* handle the A_*LINE attributes */
static void _highlight(SDL_Rect *src, SDL_Rect *dest, chtype ch)
{
short col = SP->line_color;
if (SP->mono)
return;
if (ch & A_UNDERLINE)
{
if (col != -1)
SDL_SetPalette(pdc_font, SDL_LOGPAL,
pdc_color + col, pdc_flastc, 1);
src->x = '_' % 32 * pdc_fwidth;
src->y = '_' / 32 * pdc_fheight;
if (backgr != -1)
SDL_SetColorKey(pdc_font, SDL_SRCCOLORKEY, 0);
SDL_BlitSurface(pdc_font, src, pdc_screen, dest);
if (backgr != -1)
SDL_SetColorKey(pdc_font, 0, 0);
if (col != -1)
SDL_SetPalette(pdc_font, SDL_LOGPAL,
pdc_color + foregr, pdc_flastc, 1);
}
if (ch & (A_LEFTLINE|A_RIGHTLINE))
{
if (col == -1)
col = foregr;
dest->w = 1;
if (ch & A_LEFTLINE)
SDL_FillRect(pdc_screen, dest, pdc_mapped[col]);
if (ch & A_RIGHTLINE)
{
dest->x += pdc_fwidth - 1;
SDL_FillRect(pdc_screen, dest, pdc_mapped[col]);
dest->x -= pdc_fwidth - 1;
}
dest->w = pdc_fwidth;
}
}
/* update the given physical line to look like the corresponding line in
curscr */
void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
{
SDL_Rect src, dest, lastrect;
int j;
PDC_LOG(("PDC_transform_line() - called: lineno=%d\n", lineno));
if (rectcount == MAXRECT)
PDC_update_rects();
src.h = pdc_fheight;
src.w = pdc_fwidth;
dest.y = pdc_fheight * lineno + pdc_yoffset;
dest.x = pdc_fwidth * x + pdc_xoffset;
dest.h = pdc_fheight;
dest.w = pdc_fwidth * len;
/* if the previous rect was just above this one, with the same width
and horizontal position, then merge the new one with it instead
of adding a new entry */
if (rectcount)
lastrect = uprect[rectcount - 1];
if (rectcount && lastrect.x == dest.x && lastrect.w == dest.w)
{
if (lastrect.y + lastrect.h == dest.y)
uprect[rectcount - 1].h = lastrect.h + pdc_fheight;
else
if (lastrect.y != dest.y)
uprect[rectcount++] = dest;
}
else
uprect[rectcount++] = dest;
dest.w = pdc_fwidth;
for (j = 0; j < len; j++)
{
chtype ch = srcp[j];
_set_attr(ch);
#ifdef CHTYPE_LONG
if (ch & A_ALTCHARSET && !(ch & 0xff80))
ch = (ch & (A_ATTRIBUTES ^ A_ALTCHARSET)) | acs_map[ch & 0x7f];
#endif
if (backgr == -1)
SDL_LowerBlit(pdc_tileback, &dest, pdc_screen, &dest);
src.x = (ch & 0xff) % 32 * pdc_fwidth;
src.y = (ch & 0xff) / 32 * pdc_fheight;
SDL_LowerBlit(pdc_font, &src, pdc_screen, &dest);
if (ch & (A_UNDERLINE|A_LEFTLINE|A_RIGHTLINE))
_highlight(&src, &dest, ch);
dest.x += pdc_fwidth;
}
}