1 files changed, 301 insertions, 0 deletions
diff --git a/payloads/libpayload/curses/PDCurses-3.4/sdl1/pdcdisp.c b/payloads/libpayload/curses/PDCurses-3.4/sdl1/pdcdisp.c
new file mode 100644
index 0000000000..3712e6622e
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/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;
+    }
+}