libpayload: Rename PDCurses-3.4 to PDCurses

Change-Id: If881ec130833c7e7e62caa3d31e350a531f5bc8e
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/12398
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 276 insertions, 0 deletions

diff --git a/payloads/libpayload/curses/PDCurses/pdcurses/refresh.c b/payloads/libpayload/curses/PDCurses/pdcurses/refresh.c
new file mode 100644
index 0000000000..da4bb76edd
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses/pdcurses/refresh.c
@@ -0,0 +1,276 @@
+/* Public Domain Curses */
+
+#include <curspriv.h>
+
+RCSID("$Id: refresh.c,v 1.56 2008/07/13 16:08:18 wmcbrine Exp $")
+
+/*man-start**************************************************************
+
+  Name:                                                         refresh
+
+  Synopsis:
+        int refresh(void);
+        int wrefresh(WINDOW *win);
+        int wnoutrefresh(WINDOW *win);
+        int doupdate(void);
+        int redrawwin(WINDOW *win);
+        int wredrawln(WINDOW *win, int beg_line, int num_lines);
+
+  Description:
+        wrefresh() copies the named window to the physical terminal
+        screen, taking into account what is already there in order to
+        optimize cursor movement. refresh() does the same, using stdscr.
+        These routines must be called to get any output on the terminal,
+        as other routines only manipulate data structures. Unless
+        leaveok() has been enabled, the physical cursor of the terminal
+        is left at the location of the window's cursor.
+
+        wnoutrefresh() and doupdate() allow multiple updates with more
+        efficiency than wrefresh() alone. wrefresh() works by first
+        calling wnoutrefresh(), which copies the named window to the
+        virtual screen.  It then calls doupdate(), which compares the
+        virtual screen to the physical screen and does the actual
+        update. A series of calls to wrefresh() will result in
+        alternating calls to wnoutrefresh() and doupdate(), causing
+        several bursts of output to the screen.  By first calling
+        wnoutrefresh() for each window, it is then possible to call
+        doupdate() only once.
+
+        In PDCurses, redrawwin() is equivalent to touchwin(), and
+        wredrawln() is the same as touchline(). In some other curses
+        implementations, there's a subtle distinction, but it has no
+        meaning in PDCurses.
+
+  Return Value:
+        All functions return OK on success and ERR on error.
+
+  Portability                                X/Open    BSD    SYS V
+        refresh                                 Y       Y       Y
+        wrefresh                                Y       Y       Y
+        wnoutrefresh                            Y       Y       Y
+        doupdate                                Y       Y       Y
+        redrawwin                               Y       -      4.0
+        wredrawln                               Y       -      4.0
+
+**man-end****************************************************************/
+
+#include <string.h>
+
+int wnoutrefresh(WINDOW *win)
+{
+    int begy, begx;     /* window's place on screen   */
+    int i, j;
+
+    PDC_LOG(("wnoutrefresh() - called: win=%p\n", win));
+
+    if ( !win || (win->_flags & (_PAD|_SUBPAD)) )
+        return ERR;
+
+    begy = win->_begy;
+    begx = win->_begx;
+
+    for (i = 0, j = begy; i < win->_maxy; i++, j++)
+    {
+        if (win->_firstch[i] != _NO_CHANGE)
+        {
+            chtype *src = win->_y[i];
+            chtype *dest = curscr->_y[j] + begx;
+
+            int first = win->_firstch[i]; /* first changed */
+            int last = win->_lastch[i];   /* last changed */
+
+            /* ignore areas on the outside that are marked as changed,
+               but really aren't */
+
+            while (first <= last && src[first] == dest[first])
+                first++;
+
+            while (last >= first && src[last] == dest[last])
+                last--;
+
+            /* if any have really changed... */
+
+            if (first <= last)
+            {
+                memcpy(dest + first, src + first,
+                       (last - first + 1) * sizeof(chtype));
+
+                first += begx;
+                last += begx;
+
+                if (first < curscr->_firstch[j] ||
+                    curscr->_firstch[j] == _NO_CHANGE)
+                    curscr->_firstch[j] = first;
+
+                if (last > curscr->_lastch[j])
+                    curscr->_lastch[j] = last;
+            }
+
+            win->_firstch[i] = _NO_CHANGE;  /* updated now */
+        }
+
+        win->_lastch[i] = _NO_CHANGE;       /* updated now */
+    }
+
+    if (win->_clear)
+        win->_clear = FALSE;
+
+    if (!win->_leaveit)
+    {
+        curscr->_cury = win->_cury + begy;
+        curscr->_curx = win->_curx + begx;
+    }
+
+    return OK;
+}
+
+int doupdate(void)
+{
+    int y;
+    bool clearall;
+
+    PDC_LOG(("doupdate() - called\n"));
+
+    if (!curscr)
+        return ERR;
+
+    if (isendwin())         /* coming back after endwin() called */
+    {
+        reset_prog_mode();
+        clearall = TRUE;
+        SP->alive = TRUE;   /* so isendwin() result is correct */
+    }
+    else
+        clearall = curscr->_clear;
+
+    for (y = 0; y < SP->lines; y++)
+    {
+        PDC_LOG(("doupdate() - Transforming line %d of %d: %s\n",
+                 y, SP->lines, (curscr->_firstch[y] != _NO_CHANGE) ?
+                 "Yes" : "No"));
+
+        if (clearall || curscr->_firstch[y] != _NO_CHANGE)
+        {
+            int first, last;
+
+            chtype *src = curscr->_y[y];
+            chtype *dest = pdc_lastscr->_y[y];
+
+            if (clearall)
+            {
+                first = 0;
+                last = COLS - 1;
+            }
+            else
+            {
+                first = curscr->_firstch[y];
+                last = curscr->_lastch[y];
+            }
+
+            while (first <= last)
+            {
+                int len = 0;
+
+                /* build up a run of changed cells; if two runs are
+                   separated by a single unchanged cell, ignore the
+                   break */
+
+                if (clearall)
+                    len = last - first + 1;
+                else
+                    while (first + len <= last &&
+                           (src[first + len] != dest[first + len] ||
+                            (len && first + len < last &&
+                             src[first + len + 1] != dest[first + len + 1])
+                           )
+                          )
+                        len++;
+
+                /* update the screen, and pdc_lastscr */
+
+                if (len)
+                {
+                    PDC_transform_line(y, first, len, src + first);
+                    memcpy(dest + first, src + first, len * sizeof(chtype));
+                    first += len;
+                }
+
+                /* skip over runs of unchanged cells */
+
+                while (first <= last && src[first] == dest[first])
+                    first++;
+            }
+
+            curscr->_firstch[y] = _NO_CHANGE;
+            curscr->_lastch[y] = _NO_CHANGE;
+        }
+    }
+
+    curscr->_clear = FALSE;
+
+    if (SP->visibility)
+        PDC_gotoyx(curscr->_cury, curscr->_curx);
+
+    SP->cursrow = curscr->_cury;
+    SP->curscol = curscr->_curx;
+
+    return OK;
+}
+
+int wrefresh(WINDOW *win)
+{
+    bool save_clear;
+
+    PDC_LOG(("wrefresh() - called\n"));
+
+    if ( !win || (win->_flags & (_PAD|_SUBPAD)) )
+        return ERR;
+
+    save_clear = win->_clear;
+
+    if (win == curscr)
+        curscr->_clear = TRUE;
+    else
+        wnoutrefresh(win);
+
+    if (save_clear && win->_maxy == SP->lines && win->_maxx == SP->cols)
+        curscr->_clear = TRUE;
+
+    return doupdate();
+}
+
+int refresh(void)
+{
+    PDC_LOG(("refresh() - called\n"));
+
+    return wrefresh(stdscr);
+}
+
+int wredrawln(WINDOW *win, int start, int num)
+{
+    int i;
+
+    PDC_LOG(("wredrawln() - called: win=%p start=%d num=%d\n",
+        win, start, num));
+
+    if (!win || start > win->_maxy || start + num > win->_maxy)
+        return ERR;
+
+    for (i = start; i < start + num; i++)
+    {
+        win->_firstch[i] = 0;
+        win->_lastch[i] = win->_maxx - 1;
+    }
+
+    return OK;
+}
+
+int redrawwin(WINDOW *win)
+{
+    PDC_LOG(("redrawwin() - called: win=%p\n", win));
+
+    if (!win)
+        return ERR;
+
+    return wredrawln(win, 0, win->_maxy);
+}