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Index: head/share/man/man4/vt.4
===================================================================
--- head/share/man/man4/vt.4
+++ head/share/man/man4/vt.4
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 19, 2016
+.Dd December 28, 2017
.Dt "VT" 4
.Os
.Sh NAME
@@ -45,6 +45,7 @@
.Xr loader.conf 5 :
.Cd hw.vga.textmode=1
.Cd kern.vty=vt
+.Cd kern.vt.color.<colornum>.rgb="<colorspec>"
.Cd kern.vt.fb.default_mode="<X>x<Y>"
.Cd kern.vt.fb.modes.<connector>="<X>x<Y>"
.Pp
@@ -206,6 +207,16 @@
kernel uses
.Nm
when this value is not set.
+.It Va kern.vt.color. Ns Ar colornum Ns Va .rgb
+Set this value to override default palette entry for color
+.Pa colornum
+which should be in a range from 0 to 15 inclusive.
+The value should be either a comma-separated triplet of
+red, green, and blue values in a range from 0 to 255 or
+HTML-like hex triplet.
+See
+.Sx EXAMPLES
+below.
.It Va kern.vt.fb.default_mode
Set this value to a graphic mode to override the default mode picked by the
.Nm
@@ -310,6 +321,11 @@
.Dl info: [drm] Connector LVDS-1: get mode from tunables:
.Dl info: [drm] - kern.vt.fb.modes.LVDS-1
.Dl info: [drm] - kern.vt.fb.default_mode
+.Pp
+To set black and white colors of console palette
+.Pp
+.Dl kern.vt.color.0.rgb="10,10,10"
+.Dl kern.vt.color.15.rgb="#f0f0f0"
.Sh SEE ALSO
.Xr kbdcontrol 1 ,
.Xr login 1 ,
Index: head/sys/dev/vt/colors/vt_termcolors.c
===================================================================
--- head/sys/dev/vt/colors/vt_termcolors.c
+++ head/sys/dev/vt/colors/vt_termcolors.c
@@ -33,14 +33,18 @@
__FBSDID("$FreeBSD$");
#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/libkern.h>
#include <dev/vt/colors/vt_termcolors.h>
-static const struct {
+#define NCOLORS 16
+
+static struct {
unsigned char r; /* Red percentage value. */
unsigned char g; /* Green percentage value. */
unsigned char b; /* Blue percentage value. */
-} color_def[16] = {
+} color_def[NCOLORS] = {
{0, 0, 0}, /* black */
{50, 0, 0}, /* dark red */
{0, 50, 0}, /* dark green */
@@ -65,19 +69,112 @@
* - blue and red are swapped (1 <-> 4)
* - yellow ad cyan are swapped (3 <-> 6)
*/
-static const int cons_to_vga_colors[16] = {
+static const int cons_to_vga_colors[NCOLORS] = {
0, 4, 2, 6, 1, 5, 3, 7,
0, 4, 2, 6, 1, 5, 3, 7
};
+static int
+vt_parse_rgb_triplet(const char *rgb, unsigned char *r,
+ unsigned char *g, unsigned char *b)
+{
+ unsigned long v;
+ const char *ptr;
+ char *endptr;
+
+ ptr = rgb;
+
+ /* Handle #rrggbb case */
+ if (*ptr == '#') {
+ if (strlen(ptr) != 7)
+ return (-1);
+ v = strtoul(ptr + 1, &endptr, 16);
+ if (*endptr != '\0')
+ return (-1);
+
+ *r = (v >> 16) & 0xff;
+ *g = (v >> 8) & 0xff;
+ *b = v & 0xff;
+
+ return (0);
+ }
+
+ /* "r, g, b" case */
+ v = strtoul(ptr, &endptr, 10);
+ if (ptr == endptr)
+ return (-1);
+ if (v > 255)
+ return (-1);
+ *r = v & 0xff;
+ ptr = endptr;
+
+ /* skip separator */
+ while (*ptr == ',' || *ptr == ' ')
+ ptr++;
+
+ v = strtoul(ptr, &endptr, 10);
+ if (ptr == endptr)
+ return (-1);
+ if (v > 255)
+ return (-1);
+ *g = v & 0xff;
+ ptr = endptr;
+
+ /* skip separator */
+ while (*ptr == ',' || *ptr == ' ')
+ ptr++;
+
+ v = strtoul(ptr, &endptr, 10);
+ if (ptr == endptr)
+ return (-1);
+ if (v > 255)
+ return (-1);
+ *b = v & 0xff;
+ ptr = endptr;
+
+ /* skip trailing spaces */
+ while (*ptr == ' ')
+ ptr++;
+
+ /* unexpected characters at the end of the string */
+ if (*ptr != 0)
+ return (-1);
+
+ return (0);
+}
+
+static void
+vt_palette_init()
+{
+ int i;
+ char rgb[32];
+ char tunable[32];
+ unsigned char r, g, b;
+
+ for (i = 0; i < NCOLORS; i++) {
+ snprintf(tunable, sizeof(tunable),
+ "kern.vt.color.%d.rgb", i);
+ if (TUNABLE_STR_FETCH(tunable, rgb, sizeof(rgb))) {
+ if (vt_parse_rgb_triplet(rgb, strlen(rgb), &r, &g, &b) == 0) {
+ /* convert to percentages */
+ color_def[i].r = r*100/255;
+ color_def[i].g = g*100/255;
+ color_def[i].b = b*100/255;
+ }
+ }
+ }
+}
+
int
vt_generate_cons_palette(uint32_t *palette, int format, uint32_t rmax,
int roffset, uint32_t gmax, int goffset, uint32_t bmax, int boffset)
{
int i;
+ vt_palette_init();
+
#define CF(_f, _i) ((_f ## max * color_def[(_i)]._f / 100) << _f ## offset)
- for (i = 0; i < 16; i++) {
+ for (i = 0; i < NCOLORS; i++) {
switch (format) {
case COLOR_FORMAT_VGA:
palette[i] = cons_to_vga_colors[i];

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