grub_err_t
grub_video_capture_start (const struct grub_video_mode_info *mode_info,
struct grub_video_palette_data *palette,
unsigned int palette_size)
{
grub_err_t err;
grub_memset (&framebuffer, 0, sizeof (framebuffer));
grub_video_fb_init ();
framebuffer.mode_info = *mode_info;
framebuffer.mode_info.blit_format = grub_video_get_blit_format (&framebuffer.mode_info);
framebuffer.ptr = grub_malloc (framebuffer.mode_info.height * framebuffer.mode_info.pitch);
if (!framebuffer.ptr)
return grub_errno;
err = grub_video_fb_create_render_target_from_pointer (&framebuffer.render_target,
&framebuffer.mode_info,
framebuffer.ptr);
if (err)
return err;
err = grub_video_fb_set_active_render_target (framebuffer.render_target);
if (err)
return err;
err = grub_video_fb_set_palette (0, palette_size, palette);
if (err)
return err;
saved = grub_video_adapter_active;
if (saved)
{
grub_video_get_info (&saved_mode_info);
if (saved->fini)
saved->fini ();
}
grub_video_adapter_active = &grub_video_capture_adapter;
return GRUB_ERR_NONE;
}
/* FIXME: Previously 't' changed to text menu is it necessary? */
static grub_err_t
grub_gfxmenu_try (int entry, grub_menu_t menu, int nested)
{
grub_gfxmenu_view_t view = NULL;
const char *theme_path;
struct grub_menu_viewer *instance;
grub_err_t err;
struct grub_video_mode_info mode_info;
theme_path = grub_env_get ("theme");
if (! theme_path)
return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"),
"theme");
instance = grub_zalloc (sizeof (*instance));
if (!instance)
return grub_errno;
err = grub_video_get_info (&mode_info);
if (err)
return err;
if (!cached_view || grub_strcmp (cached_view->theme_path, theme_path) != 0
|| cached_view->screen.width != mode_info.width
|| cached_view->screen.height != mode_info.height)
{
grub_free (cached_view);
/* Create the view. */
cached_view = grub_gfxmenu_view_new (theme_path, mode_info.width,
mode_info.height);
}
if (! cached_view)
{
grub_free (instance);
return grub_errno;
}
view = cached_view;
view->double_repaint = (mode_info.mode_type
& GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED)
&& !(mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP);
view->selected = entry;
view->menu = menu;
view->nested = nested;
view->first_timeout = -1;
grub_video_set_viewport (0, 0, mode_info.width, mode_info.height);
if (view->double_repaint)
{
grub_video_swap_buffers ();
grub_video_set_viewport (0, 0, mode_info.width, mode_info.height);
}
grub_gfxmenu_view_draw (view);
instance->data = view;
instance->set_chosen_entry = grub_gfxmenu_set_chosen_entry;
instance->fini = grub_gfxmenu_viewer_fini;
instance->print_timeout = grub_gfxmenu_print_timeout;
instance->clear_timeout = grub_gfxmenu_clear_timeout;
grub_menu_register_viewer (instance);
return GRUB_ERR_NONE;
}
grub_err_t
grub_video_set_mode (const char *modestring,
unsigned int modemask,
unsigned int modevalue)
{
char *tmp;
char *next_mode;
char *current_mode;
char *modevar;
if (grub_video_adapter_active && grub_video_adapter_active->id == GRUB_VIDEO_ADAPTER_CAPTURE)
return GRUB_ERR_NONE;
modevalue &= modemask;
/* Take copy of env.var. as we don't want to modify that. */
modevar = grub_strdup (modestring);
/* Initialize next mode. */
next_mode = modevar;
if (! modevar)
return grub_errno;
if (grub_memcmp (next_mode, "keep", sizeof ("keep")) == 0
|| grub_memcmp (next_mode, "keep,", sizeof ("keep,") - 1) == 0
|| grub_memcmp (next_mode, "keep;", sizeof ("keep;") - 1) == 0)
{
int suitable = 1;
grub_err_t err;
if (grub_video_adapter_active)
{
struct grub_video_mode_info mode_info;
grub_memset (&mode_info, 0, sizeof (mode_info));
err = grub_video_get_info (&mode_info);
if (err)
{
suitable = 0;
grub_errno = GRUB_ERR_NONE;
}
if ((mode_info.mode_type & modemask) != modevalue)
suitable = 0;
}
else if (((GRUB_VIDEO_MODE_TYPE_PURE_TEXT & modemask) != 0)
&& ((GRUB_VIDEO_MODE_TYPE_PURE_TEXT & modevalue) == 0))
suitable = 0;
if (suitable)
{
grub_free (modevar);
return GRUB_ERR_NONE;
}
next_mode += sizeof ("keep") - 1;
if (! *next_mode)
{
grub_free (modevar);
/* TRANSLATORS: This doesn't imply that there is no available video
mode at all. All modes may have been filtered out by some criteria.
*/
return grub_error (GRUB_ERR_BAD_ARGUMENT,
N_("no suitable video mode found"));
}
/* Skip separator. */
next_mode++;
}
/* De-activate last set video adapter. */
if (grub_video_adapter_active)
{
/* Finalize adapter. */
grub_video_adapter_active->fini ();
if (grub_errno != GRUB_ERR_NONE)
grub_errno = GRUB_ERR_NONE;
/* Mark active adapter as not set. */
grub_video_adapter_active = 0;
}
/* Loop until all modes has been tested out. */
while (next_mode != NULL)
{
int width = -1;
int height = -1;
int depth = -1;
grub_err_t err;
unsigned int flags = modevalue;
unsigned int flagmask = modemask;
/* Use last next_mode as current mode. */
tmp = next_mode;
/* Save position of next mode and separate modes. */
for (; *next_mode; next_mode++)
if (*next_mode == ',' || *next_mode == ';')
break;
if (*next_mode)
{
*next_mode = 0;
next_mode++;
}
else
next_mode = 0;
/* Skip whitespace. */
while (grub_isspace (*tmp))
tmp++;
/* Initialize token holders. */
current_mode = tmp;
/* XXX: we assume that we're in pure text mode if
no video mode is initialized. Is it always true? */
if (grub_strcmp (current_mode, "text") == 0)
{
struct grub_video_mode_info mode_info;
grub_memset (&mode_info, 0, sizeof (mode_info));
if (((GRUB_VIDEO_MODE_TYPE_PURE_TEXT & modemask) == 0)
|| ((GRUB_VIDEO_MODE_TYPE_PURE_TEXT & modevalue) != 0))
{
/* Valid mode found from adapter, and it has been activated.
Specify it as active adapter. */
grub_video_adapter_active = NULL;
/* Free memory. */
grub_free (modevar);
return GRUB_ERR_NONE;
}
}
err = parse_modespec (current_mode, &width, &height, &depth);
if (err)
{
/* Free memory before returning. */
grub_free (modevar);
return err;
}
/* Try out video mode. */
/* If user requested specific depth check if this depth is supported. */
if (depth != -1 && (flagmask & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
&&
(((flags & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
!= ((depth << GRUB_VIDEO_MODE_TYPE_DEPTH_POS)
& GRUB_VIDEO_MODE_TYPE_DEPTH_MASK))))
continue;
if (depth != -1)
{
flags |= (depth << GRUB_VIDEO_MODE_TYPE_DEPTH_POS)
& GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
flagmask |= GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
}
/* Try to initialize requested mode. Ignore any errors. */
grub_video_adapter_t p;
/* Loop thru all possible video adapter trying to find requested mode. */
for (p = grub_video_adapter_list; p; p = p->next)
{
struct grub_video_mode_info mode_info;
grub_memset (&mode_info, 0, sizeof (mode_info));
/* Try to initialize adapter, if it fails, skip to next adapter. */
err = p->init ();
if (err != GRUB_ERR_NONE)
{
grub_errno = GRUB_ERR_NONE;
continue;
}
/* Try to initialize video mode. */
err = p->setup (width, height, flags, flagmask);
if (err != GRUB_ERR_NONE)
{
p->fini ();
grub_errno = GRUB_ERR_NONE;
continue;
}
err = p->get_info (&mode_info);
if (err != GRUB_ERR_NONE)
{
p->fini ();
grub_errno = GRUB_ERR_NONE;
continue;
}
flags = mode_info.mode_type & ~GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
flags |= (mode_info.bpp << GRUB_VIDEO_MODE_TYPE_DEPTH_POS)
& GRUB_VIDEO_MODE_TYPE_DEPTH_MASK;
/* Check that mode is suitable for upper layer. */
if ((flags & GRUB_VIDEO_MODE_TYPE_PURE_TEXT)
? (((GRUB_VIDEO_MODE_TYPE_PURE_TEXT & modemask) != 0)
&& ((GRUB_VIDEO_MODE_TYPE_PURE_TEXT & modevalue) == 0))
: ((flags & modemask) != modevalue))
{
p->fini ();
grub_errno = GRUB_ERR_NONE;
continue;
}
/* Valid mode found from adapter, and it has been activated.
Specify it as active adapter. */
grub_video_adapter_active = p;
/* Free memory. */
grub_free (modevar);
return GRUB_ERR_NONE;
}
}
/* Free memory. */
grub_free (modevar);
return grub_error (GRUB_ERR_BAD_ARGUMENT,
N_("no suitable video mode found"));
}
