diff options
Diffstat (limited to 'payloads/libpayload/curses/PDCurses/sdl1/pdcdisp.c')
-rw-r--r-- | payloads/libpayload/curses/PDCurses/sdl1/pdcdisp.c | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/PDCurses/sdl1/pdcdisp.c b/payloads/libpayload/curses/PDCurses/sdl1/pdcdisp.c new file mode 100644 index 0000000000..fe463352d6 --- /dev/null +++ b/payloads/libpayload/curses/PDCurses/sdl1/pdcdisp.c @@ -0,0 +1,301 @@ +/* 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; + } +} |