1 files changed, 69 insertions, 0 deletions
diff --git a/patch/bar_vtcolors.c b/patch/bar_vtcolors.c
new file mode 100644
index 0000000..7c66e2d
--- /dev/null
+++ b/patch/bar_vtcolors.c
@@ -0,0 +1,69 @@
+void
+get_vt_colors(void)
+{
+	char *cfs[3] = {
+		"/sys/module/vt/parameters/default_red",
+		"/sys/module/vt/parameters/default_grn",
+		"/sys/module/vt/parameters/default_blu",
+	};
+	char vtcs[16][8];
+	char tk[] = ",";
+	char cl[64];
+	char *tp = NULL;
+	FILE *fp;
+	size_t r;
+	int i, c, n, len;
+	for (i = 0; i < 16; i++)
+		strcpy(vtcs[i], "#000000");
+
+	for (i = 0, r = 0; i < 3; i++) {
+		if ((fp = fopen(cfs[i], "r")) == NULL)
+			continue;
+		while ((cl[r] = fgetc(fp)) != EOF && cl[r] != '\n')
+			r++;
+		cl[r] = '\0';
+		for (c = 0, tp = cl, n = 0; c < 16; c++, tp++) {
+			if ((r = strcspn(tp, tk)) == -1)
+				break;
+			for (n = 0; r && *tp >= 48 && *tp < 58; r--, tp++)
+				n = n * 10 - 48 + *tp;
+			vtcs[c][i * 2 + 1] = n / 16 < 10 ? n / 16 + 48 : n / 16 + 87;
+			vtcs[c][i * 2 + 2] = n % 16 < 10 ? n % 16 + 48 : n % 16 + 87;
+		}
+		fclose(fp);
+	}
+
+	len = LENGTH(colors);
+	if (len > LENGTH(color_ptrs))
+		len = LENGTH(color_ptrs);
+	for (i = 0; i < len; i++) {
+		for (c = 0; c < ColCount; c++) {
+			n = color_ptrs[i][c];
+			if (n > -1 && strlen(colors[i][c]) >= strlen(vtcs[n]))
+				memcpy(colors[i][c], vtcs[n], 7);
+		}
+	}
+}
+
+int get_luminance(char *r)
+{
+	char *c = r;
+	int n[3] = {0};
+	int i = 0;
+
+	while (*c) {
+		if (*c >= 48 && *c < 58)
+			n[i / 2] = n[i / 2] * 16 - 48 + *c;
+		else if (*c >= 65 && *c < 71)
+			n[i / 2] = n[i / 2] * 16 - 55 + *c;
+		else if (*c >= 97 && *c < 103)
+			n[i / 2] = n[i / 2] * 16 - 87 + *c;
+		else
+			i--;
+		i++;
+		c++;
+	}
+
+	return (0.299 * n[0] + 0.587 * n[1] + 0.114 * n[2]) / 2.55;
+}
+