ncurses 6.1 - patch 20190323

[ncurses.git] / ncurses / base / lib_color.c

diff --git a/ncurses/base/lib_color.c b/ncurses/base/lib_color.c
index 09787afdbd84685a7043156a311571c0b813e7ff..dfb774ba98404c4215bb6f404bc95d8f3087e46d 100644 (file)
--- a/ncurses/base/lib_color.c
+++ b/ncurses/base/lib_color.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2016,2017 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2018,2019 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -48,7 +48,7 @@
 #define CUR SP_TERMTYPE
 #endif
 
-MODULE_ID("$Id: lib_color.c,v 1.132 2017/08/12 22:23:52 tom Exp $")
+MODULE_ID("$Id: lib_color.c,v 1.140 2019/01/21 01:55:18 tom Exp $")
 
 #ifdef USE_TERM_DRIVER
 #define CanChange      InfoOf(SP_PARM).canchange
@@ -266,7 +266,7 @@ init_direct_colors(NCURSES_SP_DCL0)
        }
 
        if ((n = tigetflag(name)) > 0) {
-           n = width / 3;
+           n = (width + 2) / 3;
            result->bits.red = UChar(n);
            result->bits.green = UChar(n);
            result->bits.blue = UChar(width - (2 * n));
@@ -282,6 +282,7 @@ init_direct_colors(NCURSES_SP_DCL0)
            switch (sscanf(s, "%d/%d/%d", &red, &green, &blue)) {
            default:
                blue = width - (2 * n);
+               /* FALLTHRU */
            case 1:
                green = n;
                /* FALLTHRU */
@@ -395,8 +396,10 @@ NCURSES_SP_NAME(start_color) (NCURSES_SP_DCL0)
             * allow for default-color as a component of a color-pair.
             */
            SP_PARM->_pair_limit += (1 + (2 * maxcolors));
+#if !NCURSES_EXT_COLORS
            SP_PARM->_pair_limit = limit_PAIRS(SP_PARM->_pair_limit);
 #endif
+#endif /* NCURSES_EXT_FUNCS */
            SP_PARM->_pair_count = maxpairs;
            SP_PARM->_color_count = maxcolors;
 #if !USE_REENTRANT
@@ -404,7 +407,7 @@ NCURSES_SP_NAME(start_color) (NCURSES_SP_DCL0)
            COLORS = maxcolors;
 #endif
 
-           _nc_reserve_pairs(SP_PARM, 16);
+           ReservePairs(SP_PARM, 16);
            if (SP_PARM->_color_pairs != 0) {
                if (init_direct_colors(NCURSES_SP_ARG)) {
                    result = OK;
@@ -513,49 +516,41 @@ _nc_change_pair(SCREEN *sp, int pair)
     }
 }
 
-NCURSES_EXPORT(colorpair_t *)
+NCURSES_EXPORT(void)
 _nc_reserve_pairs(SCREEN *sp, int want)
 {
-    colorpair_t *result = 0;
     int have = sp->_pair_alloc;
 
-    if ((sp->_color_pairs != 0) && (want < sp->_pair_alloc)) {
-       result = &(sp->_color_pairs[want]);
-    } else {
-
-       if (have == 0)
-           have = 1;
-       while (have <= want)
-           have *= 2;
-       if (have > sp->_pair_limit)
-           have = sp->_pair_limit;
-
-       if (sp->_color_pairs == 0) {
-           sp->_color_pairs = TYPE_CALLOC(colorpair_t, have);
-       } else if (have > sp->_pair_alloc) {
-#if USE_NEW_PAIR
-           colorpair_t *next;
-
-           if ((next = typeCalloc(colorpair_t, have)) == 0)
-               _nc_err_abort(MSG_NO_MEMORY);
-           memcpy(next, sp->_color_pairs, (size_t) sp->_pair_alloc * sizeof(*next));
-           _nc_copy_pairs(sp, next, sp->_color_pairs, sp->_pair_alloc);
-           free(sp->_color_pairs);
-           sp->_color_pairs = next;
+    if (have == 0)
+       have = 1;
+    while (have <= want)
+       have *= 2;
+    if (have > sp->_pair_limit)
+       have = sp->_pair_limit;
+
+    if (sp->_color_pairs == 0) {
+       sp->_color_pairs = TYPE_CALLOC(colorpair_t, have);
+    } else if (have > sp->_pair_alloc) {
+#if NCURSES_EXT_COLORS
+       colorpair_t *next;
+
+       if ((next = typeCalloc(colorpair_t, have)) == 0)
+           _nc_err_abort(MSG_NO_MEMORY);
+       memcpy(next, sp->_color_pairs, (size_t) sp->_pair_alloc * sizeof(*next));
+       _nc_copy_pairs(sp, next, sp->_color_pairs, sp->_pair_alloc);
+       free(sp->_color_pairs);
+       sp->_color_pairs = next;
 #else
-           TYPE_REALLOC(colorpair_t, have, sp->_color_pairs);
-           if (sp->_color_pairs != 0) {
-               memset(sp->_color_pairs + sp->_pair_alloc, 0,
-                      sizeof(colorpair_t) * (have - sp->_pair_alloc));
-           }
-#endif
-       }
+       TYPE_REALLOC(colorpair_t, have, sp->_color_pairs);
        if (sp->_color_pairs != 0) {
-           sp->_pair_alloc = have;
-           result = &(sp->_color_pairs[want]);
+           memset(sp->_color_pairs + sp->_pair_alloc, 0,
+                  sizeof(colorpair_t) * (size_t) (have - sp->_pair_alloc));
        }
+#endif
+    }
+    if (sp->_color_pairs != 0) {
+       sp->_pair_alloc = have;
     }
-    return result;
 }
 
 /*
@@ -577,7 +572,7 @@ _nc_init_pair(SCREEN *sp, int pair, int f, int b)
 
     maxcolors = MaxColors;
 
-    _nc_reserve_pairs(sp, pair);
+    ReservePairs(sp, pair);
     previous = sp->_color_pairs[pair];
 #if NCURSES_EXT_FUNCS
     if (sp->_default_color || sp->_assumed_color) {
@@ -937,9 +932,12 @@ _nc_pair_content(SCREEN *sp, int pair, int *f, int *b)
     if (!ValidPair(sp, pair)) {
        result = ERR;
     } else {
-       int fg = FORE_OF(sp->_color_pairs[pair]);
-       int bg = BACK_OF(sp->_color_pairs[pair]);
+       int fg;
+       int bg;
 
+       ReservePairs(sp, pair);
+       fg = FORE_OF(sp->_color_pairs[pair]);
+       bg = BACK_OF(sp->_color_pairs[pair]);
 #if NCURSES_EXT_FUNCS
        if (isDefaultColor(fg))
            fg = -1;
@@ -1081,7 +1079,7 @@ _nc_do_color(int old_pair, int pair, int reverse, NCURSES_OUTC outc)
 }
 #endif
 
-#if USE_EXTENDED_COLORS
+#if NCURSES_EXT_COLORS
 NCURSES_EXPORT(int)
 NCURSES_SP_NAME(init_extended_pair) (NCURSES_SP_DCLx int pair, int f, int b)
 {
@@ -1117,8 +1115,11 @@ NCURSES_SP_NAME(reset_color_pairs) (NCURSES_SP_DCL0)
 {
     if (SP_PARM != 0) {
        if (SP_PARM->_color_pairs) {
-           memset(sp->_color_pairs, 0, sizeof(colorpair_t) * (size_t) sp->_pair_alloc);
            _nc_free_ordered_pairs(SP_PARM);
+           free(SP_PARM->_color_pairs);
+           SP_PARM->_color_pairs = 0;
+           SP_PARM->_pair_alloc = 0;
+           ReservePairs(SP_PARM, 16);
            clearok(CurScreen(SP_PARM), TRUE);
            touchwin(StdScreen(SP_PARM));
        }
@@ -1160,4 +1161,4 @@ reset_color_pairs(void)
     NCURSES_SP_NAME(reset_color_pairs) (CURRENT_SCREEN);
 }
 #endif /* NCURSES_SP_FUNCS */
-#endif /* USE_EXTENDED_COLORS */
+#endif /* NCURSES_EXT_COLORS */