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-rw-r--r--tools/perf/util/color.c257
1 files changed, 44 insertions, 213 deletions
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 11e46da17bbb..e51f0a676a22 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -1,172 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
-#include "cache.h"
+#include <subcmd/pager.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
#include "color.h"
+#include <math.h>
+#include <unistd.h>
int perf_use_color_default = -1;
-static int parse_color(const char *name, int len)
-{
- static const char * const color_names[] = {
- "normal", "black", "red", "green", "yellow",
- "blue", "magenta", "cyan", "white"
- };
- char *end;
- int i;
-
- for (i = 0; i < (int)ARRAY_SIZE(color_names); i++) {
- const char *str = color_names[i];
- if (!strncasecmp(name, str, len) && !str[len])
- return i - 1;
- }
- i = strtol(name, &end, 10);
- if (end - name == len && i >= -1 && i <= 255)
- return i;
- return -2;
-}
-
-static int parse_attr(const char *name, int len)
-{
- static const int attr_values[] = { 1, 2, 4, 5, 7 };
- static const char * const attr_names[] = {
- "bold", "dim", "ul", "blink", "reverse"
- };
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(attr_names); i++) {
- const char *str = attr_names[i];
- if (!strncasecmp(name, str, len) && !str[len])
- return attr_values[i];
- }
- return -1;
-}
-
-void color_parse(const char *value, const char *var, char *dst)
-{
- color_parse_mem(value, strlen(value), var, dst);
-}
-
-void color_parse_mem(const char *value, int value_len, const char *var,
- char *dst)
-{
- const char *ptr = value;
- int len = value_len;
- int attr = -1;
- int fg = -2;
- int bg = -2;
-
- if (!strncasecmp(value, "reset", len)) {
- strcpy(dst, PERF_COLOR_RESET);
- return;
- }
-
- /* [fg [bg]] [attr] */
- while (len > 0) {
- const char *word = ptr;
- int val, wordlen = 0;
-
- while (len > 0 && !isspace(word[wordlen])) {
- wordlen++;
- len--;
- }
-
- ptr = word + wordlen;
- while (len > 0 && isspace(*ptr)) {
- ptr++;
- len--;
- }
-
- val = parse_color(word, wordlen);
- if (val >= -1) {
- if (fg == -2) {
- fg = val;
- continue;
- }
- if (bg == -2) {
- bg = val;
- continue;
- }
- goto bad;
- }
- val = parse_attr(word, wordlen);
- if (val < 0 || attr != -1)
- goto bad;
- attr = val;
- }
-
- if (attr >= 0 || fg >= 0 || bg >= 0) {
- int sep = 0;
-
- *dst++ = '\033';
- *dst++ = '[';
- if (attr >= 0) {
- *dst++ = '0' + attr;
- sep++;
- }
- if (fg >= 0) {
- if (sep++)
- *dst++ = ';';
- if (fg < 8) {
- *dst++ = '3';
- *dst++ = '0' + fg;
- } else {
- dst += sprintf(dst, "38;5;%d", fg);
- }
- }
- if (bg >= 0) {
- if (sep++)
- *dst++ = ';';
- if (bg < 8) {
- *dst++ = '4';
- *dst++ = '0' + bg;
- } else {
- dst += sprintf(dst, "48;5;%d", bg);
- }
- }
- *dst++ = 'm';
- }
- *dst = 0;
- return;
-bad:
- die("bad color value '%.*s' for variable '%s'", value_len, value, var);
-}
-
-int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
-{
- if (value) {
- if (!strcasecmp(value, "never"))
- return 0;
- if (!strcasecmp(value, "always"))
- return 1;
- if (!strcasecmp(value, "auto"))
- goto auto_color;
- }
-
- /* Missing or explicit false to turn off colorization */
- if (!perf_config_bool(var, value))
- return 0;
-
- /* any normal truth value defaults to 'auto' */
- auto_color:
- if (stdout_is_tty < 0)
- stdout_is_tty = isatty(1);
- if (stdout_is_tty || (pager_in_use() && pager_use_color)) {
- char *term = getenv("TERM");
- if (term && strcmp(term, "dumb"))
- return 1;
- }
- return 0;
-}
-
-int perf_color_default_config(const char *var, const char *value, void *cb)
-{
- if (!strcmp(var, "color.ui")) {
- perf_use_color_default = perf_config_colorbool(var, value, -1);
- return 0;
- }
-
- return perf_default_config(var, value, cb);
-}
-
static int __color_vsnprintf(char *bf, size_t size, const char *color,
const char *fmt, va_list args, const char *trail)
{
@@ -192,8 +35,9 @@ static int __color_vsnprintf(char *bf, size_t size, const char *color,
return r;
}
+/* Colors are not included in return value */
static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
- va_list args, const char *trail)
+ va_list args)
{
int r = 0;
@@ -208,12 +52,10 @@ static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
}
if (perf_use_color_default && *color)
- r += fprintf(fp, "%s", color);
+ fprintf(fp, "%s", color);
r += vfprintf(fp, fmt, args);
if (perf_use_color_default && *color)
- r += fprintf(fp, "%s", PERF_COLOR_RESET);
- if (trail)
- r += fprintf(fp, "%s", trail);
+ fprintf(fp, "%s", PERF_COLOR_RESET);
return r;
}
@@ -225,7 +67,7 @@ int color_vsnprintf(char *bf, size_t size, const char *color,
int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args)
{
- return __color_vfprintf(fp, color, fmt, args, NULL);
+ return __color_vfprintf(fp, color, fmt, args);
}
int color_snprintf(char *bf, size_t size, const char *color,
@@ -251,44 +93,6 @@ int color_fprintf(FILE *fp, const char *color, const char *fmt, ...)
return r;
}
-int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...)
-{
- va_list args;
- int r;
- va_start(args, fmt);
- r = __color_vfprintf(fp, color, fmt, args, "\n");
- va_end(args);
- return r;
-}
-
-/*
- * This function splits the buffer by newlines and colors the lines individually.
- *
- * Returns 0 on success.
- */
-int color_fwrite_lines(FILE *fp, const char *color,
- size_t count, const char *buf)
-{
- if (!*color)
- return fwrite(buf, count, 1, fp) != 1;
-
- while (count) {
- char *p = memchr(buf, '\n', count);
-
- if (p != buf && (fputs(color, fp) < 0 ||
- fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 ||
- fputs(PERF_COLOR_RESET, fp) < 0))
- return -1;
- if (!p)
- return 0;
- if (fputc('\n', fp) < 0)
- return -1;
- count -= p + 1 - buf;
- buf = p + 1;
- }
- return 0;
-}
-
const char *get_percent_color(double percent)
{
const char *color = PERF_COLOR_NORMAL;
@@ -298,10 +102,10 @@ const char *get_percent_color(double percent)
* entries in green - and keep the low overhead places
* normal:
*/
- if (percent >= MIN_RED)
+ if (fabs(percent) >= MIN_RED)
color = PERF_COLOR_RED;
else {
- if (percent > MIN_GREEN)
+ if (fabs(percent) > MIN_GREEN)
color = PERF_COLOR_GREEN;
}
return color;
@@ -318,8 +122,35 @@ int percent_color_fprintf(FILE *fp, const char *fmt, double percent)
return r;
}
-int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent)
+int value_color_snprintf(char *bf, size_t size, const char *fmt, double value)
{
- const char *color = get_percent_color(percent);
- return color_snprintf(bf, size, color, fmt, percent);
+ const char *color = get_percent_color(value);
+ return color_snprintf(bf, size, color, fmt, value);
+}
+
+int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...)
+{
+ va_list args;
+ double percent;
+
+ va_start(args, fmt);
+ percent = va_arg(args, double);
+ va_end(args);
+ return value_color_snprintf(bf, size, fmt, percent);
+}
+
+int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...)
+{
+ va_list args;
+ int len;
+ double percent;
+ const char *color;
+
+ va_start(args, fmt);
+ len = va_arg(args, int);
+ percent = va_arg(args, double);
+ va_end(args);
+
+ color = get_percent_color(percent);
+ return color_snprintf(bf, size, color, fmt, len, percent);
}
generated by cgit (git 2.34.1) at 2025-12-25 07:57:11 +0000