static grub_err_t
grub_video_cbfb_fill_mode_info (struct grub_video_mode_info *out)
{
grub_memset (out, 0, sizeof (*out));
out->width = grub_video_coreboot_fbtable->width;
out->height = grub_video_coreboot_fbtable->height;
out->pitch = grub_video_coreboot_fbtable->pitch;
out->red_field_pos = grub_video_coreboot_fbtable->red_field_pos;
out->red_mask_size = grub_video_coreboot_fbtable->red_mask_size;
out->green_field_pos = grub_video_coreboot_fbtable->green_field_pos;
out->green_mask_size = grub_video_coreboot_fbtable->green_mask_size;
out->blue_field_pos = grub_video_coreboot_fbtable->blue_field_pos;
out->blue_mask_size = grub_video_coreboot_fbtable->blue_mask_size;
out->reserved_field_pos = grub_video_coreboot_fbtable->reserved_field_pos;
out->reserved_mask_size = grub_video_coreboot_fbtable->reserved_mask_size;
out->mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
out->bpp = grub_video_coreboot_fbtable->bpp;
out->bytes_per_pixel = (grub_video_coreboot_fbtable->bpp + 7) / 8;
out->number_of_colors = 256;
out->blit_format = grub_video_get_blit_format (out);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_video_ieee1275_fill_mode_info (grub_ieee1275_phandle_t dev,
struct grub_video_mode_info *out)
{
grub_uint32_t tmp;
grub_memset (out, 0, sizeof (*out));
if (grub_ieee1275_get_integer_property (dev, "width", &tmp,
sizeof (tmp), 0))
return grub_error (GRUB_ERR_IO, "Couldn't retrieve display width.");
out->width = tmp;
if (grub_ieee1275_get_integer_property (dev, "height", &tmp,
sizeof (tmp), 0))
return grub_error (GRUB_ERR_IO, "Couldn't retrieve display height.");
out->height = tmp;
if (grub_ieee1275_get_integer_property (dev, "linebytes", &tmp,
sizeof (tmp), 0))
return grub_error (GRUB_ERR_IO, "Couldn't retrieve display pitch.");
out->pitch = tmp;
out->mode_type = GRUB_VIDEO_MODE_TYPE_INDEX_COLOR;
out->bpp = 8;
out->bytes_per_pixel = 1;
out->number_of_colors = 256;
out->blit_format = grub_video_get_blit_format (out);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_video_gop_fill_mode_info (unsigned mode,
struct grub_efi_gop_mode_info *in,
struct grub_video_mode_info *out)
{
out->mode_number = mode;
out->number_of_colors = 256;
out->width = in->width;
out->height = in->height;
out->mode_type = GRUB_VIDEO_MODE_TYPE_RGB;
out->bpp = grub_video_gop_get_bpp (in);
out->bytes_per_pixel = out->bpp >> 3;
if (!out->bpp)
return grub_error (GRUB_ERR_IO, "unsupported video mode");
out->pitch = in->pixels_per_scanline * out->bytes_per_pixel;
switch (in->pixel_format)
{
case GRUB_EFI_GOT_RGBA8:
out->red_mask_size = 8;
out->red_field_pos = 0;
out->green_mask_size = 8;
out->green_field_pos = 8;
out->blue_mask_size = 8;
out->blue_field_pos = 16;
out->reserved_mask_size = 8;
out->reserved_field_pos = 24;
break;
case GRUB_EFI_GOT_BGRA8:
out->red_mask_size = 8;
out->red_field_pos = 16;
out->green_mask_size = 8;
out->green_field_pos = 8;
out->blue_mask_size = 8;
out->blue_field_pos = 0;
out->reserved_mask_size = 8;
out->reserved_field_pos = 24;
break;
case GRUB_EFI_GOT_BITMASK:
grub_video_gop_get_bitmask (in->pixel_bitmask.r, &out->red_mask_size,
&out->red_field_pos);
grub_video_gop_get_bitmask (in->pixel_bitmask.g, &out->green_mask_size,
&out->green_field_pos);
grub_video_gop_get_bitmask (in->pixel_bitmask.b, &out->blue_mask_size,
&out->blue_field_pos);
grub_video_gop_get_bitmask (in->pixel_bitmask.a, &out->reserved_mask_size,
&out->reserved_field_pos);
break;
default:
return grub_error (GRUB_ERR_IO, "unsupported video mode");
}
out->blit_format = grub_video_get_blit_format (out);
return GRUB_ERR_NONE;
}
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;
}
static grub_err_t
grub_video_sdl_setup (unsigned int width, unsigned int height,
unsigned int mode_type,
unsigned int mode_mask __attribute__ ((unused)))
{
int depth;
int flags = 0;
grub_err_t err;
/* Decode depth from mode_type. If it is zero, then autodetect. */
depth = (mode_type & GRUB_VIDEO_MODE_TYPE_DEPTH_MASK)
>> GRUB_VIDEO_MODE_TYPE_DEPTH_POS;
if ((depth == 0) || (depth == 32))
depth = 24;
if (width == 0 && height == 0)
{
width = 800;
height = 600;
}
if ((mode_type & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED)
|| !(mode_mask & GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED))
flags |= SDL_DOUBLEBUF;
window = SDL_SetVideoMode (width, height, depth, flags | SDL_HWSURFACE);
if (! window)
window = SDL_SetVideoMode (width, height, depth, flags | SDL_SWSURFACE);
if (! window)
return grub_error (GRUB_ERR_BAD_DEVICE, "Couldn't open window: %s",
SDL_GetError ());
grub_memset (&sdl_render_target, 0, sizeof (sdl_render_target));
mode_info.width = window->w;
mode_info.height = window->h;
mode_info.mode_type = 0;
if (window->flags & SDL_DOUBLEBUF)
mode_info.mode_type
|= GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED;
if (window->format->palette)
mode_info.mode_type |= GRUB_VIDEO_MODE_TYPE_INDEX_COLOR;
else
mode_info.mode_type |= GRUB_VIDEO_MODE_TYPE_RGB;
mode_info.bpp = window->format->BitsPerPixel;
mode_info.bytes_per_pixel = window->format->BytesPerPixel;
mode_info.pitch = window->pitch;
/* In index color mode, number of colors. In RGB mode this is 256. */
if (window->format->palette)
mode_info.number_of_colors
= 1 << window->format->BitsPerPixel;
else
mode_info.number_of_colors = 256;
if (! window->format->palette)
{
mode_info.red_mask_size
= get_mask_size (window->format->Rmask >> window->format->Rshift);
mode_info.red_field_pos = window->format->Rshift;
mode_info.green_mask_size
= get_mask_size (window->format->Gmask >> window->format->Gshift);
mode_info.green_field_pos = window->format->Gshift;
mode_info.blue_mask_size
= get_mask_size (window->format->Bmask >> window->format->Bshift);
mode_info.blue_field_pos = window->format->Bshift;
mode_info.reserved_mask_size
= get_mask_size (window->format->Amask >> window->format->Ashift);
mode_info.reserved_field_pos = window->format->Ashift;
mode_info.blit_format
= grub_video_get_blit_format (&mode_info);
}
