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2008-08-31 Colin D Bennett <colin@gibibit.com>

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* commands/i386/pc/vbeinfo.c (grub_cmd_vbeinfo): Show VBE version and
        total video memory in 'vbeinfo' output; show color format details for
        each video mode.
This commit is contained in:
chaac 2008-08-31 09:28:36 +00:00
parent 7c5d8d950c
commit c08a6c1877
2 changed files with 36 additions and 7 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2008-08-31 Colin D Bennett <colin@gibibit.com>
* commands/i386/pc/vbeinfo.c (grub_cmd_vbeinfo): Show VBE version and
total video memory in 'vbeinfo' output; show color format details for
each video mode.
2008-08-30 Pavel Roskin <proski@gnu.org>
* util/genmoddep.c: Remove for real this time.

37
commands/i386/pc/vbeinfo.c
View file

@ -48,12 +48,18 @@ grub_cmd_vbeinfo (struct grub_arg_list *state __attribute__ ((unused)),
grub_err_t err;
char *modevar;
grub_printf ("List of compatible video modes:\n");
err = grub_vbe_probe (&controller_info);
if (err != GRUB_ERR_NONE)
return err;
grub_printf ("VBE info: version: %d.%d OEM software rev: %d.%d\n",
controller_info.version >> 8,
controller_info.version & 0xFF,
controller_info.oem_software_rev >> 8,
controller_info.oem_software_rev & 0xFF);
grub_printf (" total memory: %d KiB\n",
(controller_info.total_memory << 16) / 1024);
/* Because the information on video modes is stored in a temporary place,
it is better to copy it to somewhere safe. */
p = video_mode_list = real2pm (controller_info.video_mode_ptr);
@ -67,6 +73,10 @@ grub_cmd_vbeinfo (struct grub_arg_list *state __attribute__ ((unused)),
grub_memcpy (saved_video_mode_list, video_mode_list, video_mode_list_size);
grub_printf ("List of compatible video modes:\n");
grub_printf ("Legend: P=Packed pixel, D=Direct color, "
"mask/pos=R/G/B/reserved\n");
/* Walk through all video modes listed. */
for (p = saved_video_mode_list; *p != 0xFFFF; p++)
{
@ -103,10 +113,10 @@ grub_cmd_vbeinfo (struct grub_arg_list *state __attribute__ ((unused)),
switch (mode_info_tmp.memory_model)
{
case 0x04:
memory_model = "Packed Pixel";
memory_model = "Packed";
break;
case 0x06:
memory_model = "Direct Color";
memory_model = "Direct";
break;
default:
@ -116,12 +126,25 @@ grub_cmd_vbeinfo (struct grub_arg_list *state __attribute__ ((unused)),
if (! memory_model)
continue;
grub_printf ("0x%03x: %d x %d x %d bpp (%s)\n",
mode,
grub_printf ("0x%03x: %4d x %4d x %2d %s",
mode,
mode_info_tmp.x_resolution,
mode_info_tmp.y_resolution,
mode_info_tmp.bits_per_pixel,
memory_model);
memory_model);
/* Show mask and position details for direct color modes. */
if (mode_info_tmp.memory_model == 0x06)
grub_printf (", mask: %d/%d/%d/%d pos: %d/%d/%d/%d",
mode_info_tmp.red_mask_size,
mode_info_tmp.green_mask_size,
mode_info_tmp.blue_mask_size,
mode_info_tmp.rsvd_mask_size,
mode_info_tmp.red_field_position,
mode_info_tmp.green_field_position,
mode_info_tmp.blue_field_position,
mode_info_tmp.rsvd_field_position);
grub_printf ("\n");
}
grub_free (saved_video_mode_list);