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Initial videoinfo implementation

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-09-03 21:19:22 +02:00
parent c8e7bf5ff7
commit 540e2fe185
4 changed files with 216 additions and 77 deletions
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101
grub-core/commands/videoinfo.c Normal file
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/* videoinfo.c - command to list video modes. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2005,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/video.h>
#include <grub/dl.h>
#include <grub/env.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/command.h>
#include <grub/i18n.h>
static int
hook (const struct grub_video_mode_info *info)
{
grub_printf (" %4d x %4d x %2d ", info->height, info->width, info->bpp);
/* Show mask and position details for direct color modes. */
if (info->mode_type & GRUB_VIDEO_MODE_TYPE_RGB)
grub_printf ("D, mask: %d/%d/%d/%d pos: %d/%d/%d/%d",
info->red_mask_size,
info->green_mask_size,
info->blue_mask_size,
info->reserved_mask_size,
info->red_field_pos,
info->green_field_pos,
info->blue_field_pos,
info->reserved_field_pos);
if (info->mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR)
grub_printf ("P");
grub_printf ("\n");
return 0;
}
static grub_err_t
grub_cmd_videoinfo (grub_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
grub_video_adapter_t adapter;
grub_video_driver_id_t id = grub_video_get_driver_id ();
grub_printf ("List of supported video modes:\n");
grub_printf ("Legend: P=Packed pixel, D=Direct color, "
"mask/pos=R/G/B/reserved\n");
FOR_VIDEO_ADAPTERS (adapter)
{
if (adapter->id != id)
{
if (adapter->init ())
{
grub_errno = GRUB_ERR_NONE;
continue;
}
}
grub_printf ("Adapter '%s':\n", adapter->name);
adapter->iterate (hook);
if (adapter->id != id)
{
if (adapter->fini ())
{
grub_errno = GRUB_ERR_NONE;
continue;
}
}
}
return GRUB_ERR_NONE;
}
static grub_command_t cmd;
GRUB_MOD_INIT(videoinfo)
{
cmd = grub_register_command ("videoinfo", grub_cmd_videoinfo, 0,
N_("List available video modes."));
}
GRUB_MOD_FINI(videoinfo)
{
grub_unregister_command (cmd);
}