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Diffstat (limited to 'ncurses/base/lib_color.c')
-rw-r--r--ncurses/base/lib_color.c115
1 files changed, 59 insertions, 56 deletions
diff --git a/ncurses/base/lib_color.c b/ncurses/base/lib_color.c
index 376ad4f..e4dc79b 100644
--- a/ncurses/base/lib_color.c
+++ b/ncurses/base/lib_color.c
@@ -1,5 +1,5 @@
/****************************************************************************
- * Copyright 2018-2019,2020 Thomas E. Dickey *
+ * Copyright 2018-2020,2021 Thomas E. Dickey *
* Copyright 1998-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
@@ -49,7 +49,7 @@
#define CUR SP_TERMTYPE
#endif
-MODULE_ID("$Id: lib_color.c,v 1.143 2020/02/02 23:34:34 tom Exp $")
+MODULE_ID("$Id: lib_color.c,v 1.148 2021/10/02 22:55:48 tom Exp $")
#ifdef USE_TERM_DRIVER
#define CanChange InfoOf(SP_PARM).canchange
@@ -140,7 +140,6 @@ NCURSES_EXPORT_VAR(const color_t*) _nc_hls_palette = hls_palette;
#endif
/* *INDENT-ON* */
-
#if NCURSES_EXT_FUNCS
/*
* These are called from _nc_do_color(), which in turn is called from
@@ -190,12 +189,12 @@ set_background_color(NCURSES_SP_DCLx int bg, NCURSES_SP_OUTC outc)
if (set_a_background) {
TPUTS_TRACE("set_a_background");
NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
- TPARM_1(set_a_background, bg),
+ TIPARM_1(set_a_background, bg),
1, outc);
} else {
TPUTS_TRACE("set_background");
NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
- TPARM_1(set_background, toggled_colors(bg)),
+ TIPARM_1(set_background, toggled_colors(bg)),
1, outc);
}
#endif
@@ -210,12 +209,12 @@ set_foreground_color(NCURSES_SP_DCLx int fg, NCURSES_SP_OUTC outc)
if (set_a_foreground) {
TPUTS_TRACE("set_a_foreground");
NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
- TPARM_1(set_a_foreground, fg),
+ TIPARM_1(set_a_foreground, fg),
1, outc);
} else {
TPUTS_TRACE("set_foreground");
NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
- TPARM_1(set_foreground, toggled_colors(fg)),
+ TIPARM_1(set_foreground, toggled_colors(fg)),
1, outc);
}
#endif
@@ -253,20 +252,21 @@ init_direct_colors(NCURSES_SP_DCL0)
{
static NCURSES_CONST char name[] = "RGB";
- int n;
- const char *s;
- int width;
rgb_bits_t *result = &(SP_PARM->_direct_color);
result->value = 0;
if (COLORS >= 8) {
+ int n;
+ const char *s;
+ int width;
+
/* find the number of bits needed for the maximum color value */
for (width = 0; (1 << width) - 1 < (COLORS - 1); ++width) {
;
}
- if ((n = tigetflag(name)) > 0) {
+ if (tigetflag(name) > 0) {
n = (width + 2) / 3;
result->bits.red = UChar(n);
result->bits.green = UChar(n);
@@ -361,7 +361,6 @@ NCURSES_EXPORT(int)
NCURSES_SP_NAME(start_color) (NCURSES_SP_DCL0)
{
int result = ERR;
- int maxpairs = 0, maxcolors = 0;
T((T_CALLED("start_color(%p)"), (void *) SP_PARM));
@@ -370,8 +369,8 @@ NCURSES_SP_NAME(start_color) (NCURSES_SP_DCL0)
} else if (SP_PARM->_coloron) {
result = OK;
} else {
- maxpairs = MaxPairs;
- maxcolors = MaxColors;
+ int maxpairs = MaxPairs;
+ int maxcolors = MaxColors;
if (reset_color_pair(NCURSES_SP_ARG) != TRUE) {
set_foreground_color(NCURSES_SP_ARGx
default_fg(NCURSES_SP_ARG),
@@ -672,14 +671,14 @@ _nc_init_pair(SCREEN *sp, int pair, int f, int b)
(int) tp[b].red, (int) tp[b].green, (int) tp[b].blue));
NCURSES_PUTP2("initialize_pair",
- TPARM_7(initialize_pair,
- pair,
- (int) tp[f].red,
- (int) tp[f].green,
- (int) tp[f].blue,
- (int) tp[b].red,
- (int) tp[b].green,
- (int) tp[b].blue));
+ TIPARM_7(initialize_pair,
+ pair,
+ (int) tp[f].red,
+ (int) tp[f].green,
+ (int) tp[f].blue,
+ (int) tp[b].red,
+ (int) tp[b].green,
+ (int) tp[b].blue));
}
#endif
@@ -746,7 +745,7 @@ _nc_init_color(SCREEN *sp, int color, int r, int g, int b)
CallDriver_4(sp, td_initcolor, color, r, g, b);
#else
NCURSES_PUTP2("initialize_color",
- TPARM_4(initialize_color, color, r, g, b));
+ TIPARM_4(initialize_color, color, r, g, b));
#endif
sp->_color_defs = max(color + 1, sp->_color_defs);
@@ -832,7 +831,6 @@ static int
_nc_color_content(SCREEN *sp, int color, int *r, int *g, int *b)
{
int result = ERR;
- int maxcolors;
T((T_CALLED("color_content(%p,%d,%p,%p,%p)"),
(void *) sp,
@@ -841,52 +839,57 @@ _nc_color_content(SCREEN *sp, int color, int *r, int *g, int *b)
(void *) g,
(void *) b));
- if (sp == 0)
- returnCode(result);
-
- maxcolors = MaxColors;
+ if (sp != 0) {
+ int maxcolors = MaxColors;
- if (color < 0 || !OkColorHi(color) || !sp->_coloron) {
- result = ERR;
- } else {
- int c_r, c_g, c_b;
+ if (color >= 0 && OkColorHi(color) && sp->_coloron) {
+ int c_r, c_g, c_b;
- if (sp->_direct_color.value) {
- rgb_bits_t *work = &(sp->_direct_color);
+ if (sp->_direct_color.value) {
+ rgb_bits_t *work = &(sp->_direct_color);
#define max_direct_color(name) ((1 << work->bits.name) - 1)
#define value_direct_color(max) (1000 * ((color >> bitoff) & max)) / max
- int max_r = max_direct_color(red);
- int max_g = max_direct_color(green);
- int max_b = max_direct_color(blue);
+ int max_r = max_direct_color(red);
+ int max_g = max_direct_color(green);
+ int max_b = max_direct_color(blue);
- int bitoff = 0;
+ int bitoff = 0;
- c_b = value_direct_color(max_b);
- bitoff += work->bits.blue;
+ c_b = value_direct_color(max_b);
+ bitoff += work->bits.blue;
- c_g = value_direct_color(max_g);
- bitoff += work->bits.green;
+ c_g = value_direct_color(max_g);
+ bitoff += work->bits.green;
- c_r = value_direct_color(max_r);
+ c_r = value_direct_color(max_r);
- } else {
- c_r = sp->_color_table[color].red;
- c_g = sp->_color_table[color].green;
- c_b = sp->_color_table[color].blue;
- }
+ } else {
+ c_r = sp->_color_table[color].red;
+ c_g = sp->_color_table[color].green;
+ c_b = sp->_color_table[color].blue;
+ }
+ if (r)
+ *r = c_r;
+ if (g)
+ *g = c_g;
+ if (b)
+ *b = c_b;
+
+ TR(TRACE_ATTRS, ("...color_content(%d,%d,%d,%d)",
+ color, c_r, c_g, c_b));
+ result = OK;
+ }
+ }
+ if (result != OK) {
if (r)
- *r = c_r;
+ *r = 0;
if (g)
- *g = c_g;
+ *g = 0;
if (b)
- *b = c_b;
-
- TR(TRACE_ATTRS, ("...color_content(%d,%d,%d,%d)",
- color, c_r, c_g, c_b));
- result = OK;
+ *b = 0;
}
returnCode(result);
}
@@ -1004,7 +1007,7 @@ NCURSES_SP_NAME(_nc_do_color) (NCURSES_SP_DCLx
if (set_color_pair) {
TPUTS_TRACE("set_color_pair");
NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
- TPARM_1(set_color_pair, pair),
+ TIPARM_1(set_color_pair, pair),
1, outc);
return;
} else if (SP_PARM != 0) {
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