Adding upstream version 2.06.upstream/2.06upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 704 insertions, 0 deletions

diff --git a/include/grub/video.h b/include/grub/video.h
new file mode 100644
index 0000000..52c3fd7
--- /dev/null
+++ b/include/grub/video.h
@@ -0,0 +1,704 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2008,2009  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/>.
+ */
+
+#ifndef GRUB_VIDEO_HEADER
+#define GRUB_VIDEO_HEADER	1
+
+#include <grub/err.h>
+#include <grub/types.h>
+#include <grub/list.h>
+
+/* Video color in hardware dependent format.  Users should not assume any
+   specific coding format.  */
+typedef grub_uint32_t grub_video_color_t;
+
+/* Video color in hardware independent format.  */
+typedef struct grub_video_rgba_color
+{
+  grub_uint8_t red;
+  grub_uint8_t green;
+  grub_uint8_t blue;
+  grub_uint8_t alpha;
+} grub_video_rgba_color_t;
+
+/* This structure is driver specific and should not be accessed directly by
+   outside code.  */
+struct grub_video_render_target;
+
+/* Forward declarations for used data structures.  */
+struct grub_video_bitmap;
+
+/* Defines used to describe video mode or rendering target.  */
+/* If following is set render target contains currenly displayed image
+   after swapping buffers (otherwise it contains previously displayed image).
+ */
+typedef enum grub_video_mode_type
+  {
+    GRUB_VIDEO_MODE_TYPE_RGB              = 0x00000001,
+    GRUB_VIDEO_MODE_TYPE_INDEX_COLOR      = 0x00000002,
+    GRUB_VIDEO_MODE_TYPE_1BIT_BITMAP      = 0x00000004,
+    GRUB_VIDEO_MODE_TYPE_YUV              = 0x00000008,
+
+    /* Defines used to mask flags.  */
+    GRUB_VIDEO_MODE_TYPE_COLOR_MASK       = 0x0000000F,
+
+    GRUB_VIDEO_MODE_TYPE_DOUBLE_BUFFERED  = 0x00000010,
+    GRUB_VIDEO_MODE_TYPE_ALPHA            = 0x00000020,
+    GRUB_VIDEO_MODE_TYPE_PURE_TEXT        = 0x00000040,
+    GRUB_VIDEO_MODE_TYPE_UPDATING_SWAP    = 0x00000080,
+    GRUB_VIDEO_MODE_TYPE_OPERATIONAL_MASK = 0x000000F0,
+
+    /* Defines used to specify requested bit depth.  */
+    GRUB_VIDEO_MODE_TYPE_DEPTH_MASK       = 0x0000FF00,
+#define GRUB_VIDEO_MODE_TYPE_DEPTH_POS	  8
+
+    GRUB_VIDEO_MODE_TYPE_UNKNOWN          = 0x00010000,
+    GRUB_VIDEO_MODE_TYPE_HERCULES         = 0x00020000,
+    GRUB_VIDEO_MODE_TYPE_PLANAR           = 0x00040000,
+    GRUB_VIDEO_MODE_TYPE_NONCHAIN4        = 0x00080000,
+    GRUB_VIDEO_MODE_TYPE_CGA              = 0x00100000,
+    GRUB_VIDEO_MODE_TYPE_INFO_MASK        = 0x00FF0000,
+  } grub_video_mode_type_t;
+
+/* The basic render target representing the whole display.  This always
+   renders to the back buffer when double-buffering is in use.  */
+#define GRUB_VIDEO_RENDER_TARGET_DISPLAY \
+  ((struct grub_video_render_target *) 0)
+
+/* Defined blitting formats.  */
+enum grub_video_blit_format
+  {
+    /* Generic RGBA, use fields & masks.  */
+    GRUB_VIDEO_BLIT_FORMAT_RGBA,
+
+    /* Optimized RGBA's.  */
+    GRUB_VIDEO_BLIT_FORMAT_RGBA_8888,
+    GRUB_VIDEO_BLIT_FORMAT_BGRA_8888,
+
+    /* Generic RGB, use fields & masks.  */
+    GRUB_VIDEO_BLIT_FORMAT_RGB,
+
+    /* Optimized RGB's.  */
+    GRUB_VIDEO_BLIT_FORMAT_RGB_888,
+    GRUB_VIDEO_BLIT_FORMAT_BGR_888,
+    GRUB_VIDEO_BLIT_FORMAT_RGB_565,
+    GRUB_VIDEO_BLIT_FORMAT_BGR_565,
+
+    /* When needed, decode color or just use value as is.  */
+    GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR,
+    /* Like index but only 16-colors and F0 is a special value for transparency.
+       Could be extended to 4 bits of alpha and 4 bits of color if necessary.
+       Used internally for text rendering.
+     */
+    GRUB_VIDEO_BLIT_FORMAT_INDEXCOLOR_ALPHA,
+
+    /* Two color bitmap; bits packed: rows are not padded to byte boundary.  */
+    GRUB_VIDEO_BLIT_FORMAT_1BIT_PACKED
+  };
+
+/* Define blitting operators.  */
+enum grub_video_blit_operators
+  {
+    /* Replace target bitmap data with source.  */
+    GRUB_VIDEO_BLIT_REPLACE,
+    /* Blend target and source based on source's alpha value.  */
+    GRUB_VIDEO_BLIT_BLEND
+  };
+
+struct grub_video_mode_info
+{
+  /* Width of the screen.  */
+  unsigned int width;
+
+  /* Height of the screen.  */
+  unsigned int height;
+
+  /* Mode type bitmask.  Contains information like is it Index color or
+     RGB mode.  */
+  grub_video_mode_type_t mode_type;
+
+  /* Bits per pixel.  */
+  unsigned int bpp;
+
+  /* Bytes per pixel.  */
+  unsigned int bytes_per_pixel;
+
+  /* Pitch of one scanline.  How many bytes there are for scanline.  */
+  unsigned int pitch;
+
+  /* In index color mode, number of colors.  In RGB mode this is 256.  */
+  unsigned int number_of_colors;
+
+  unsigned int mode_number;
+#define GRUB_VIDEO_MODE_NUMBER_INVALID 0xffffffff
+
+  /* Optimization hint how binary data is coded.  */
+  enum grub_video_blit_format blit_format;
+
+  /* How many bits are reserved for red color.  */
+  unsigned int red_mask_size;
+
+  /* What is location of red color bits.  In Index Color mode, this is 0.  */
+  unsigned int red_field_pos;
+
+  /* How many bits are reserved for green color.  */
+  unsigned int green_mask_size;
+
+  /* What is location of green color bits.  In Index Color mode, this is 0.  */
+  unsigned int green_field_pos;
+
+  /* How many bits are reserved for blue color.  */
+  unsigned int blue_mask_size;
+
+  /* What is location of blue color bits.  In Index Color mode, this is 0.  */
+  unsigned int blue_field_pos;
+
+  /* How many bits are reserved in color.  */
+  unsigned int reserved_mask_size;
+
+  /* What is location of reserved color bits.  In Index Color mode,
+     this is 0.  */
+  unsigned int reserved_field_pos;
+
+  /* For 1-bit bitmaps, the background color.  Used for bits = 0.  */
+  grub_uint8_t bg_red;
+  grub_uint8_t bg_green;
+  grub_uint8_t bg_blue;
+  grub_uint8_t bg_alpha;
+
+  /* For 1-bit bitmaps, the foreground color.  Used for bits = 1.  */
+  grub_uint8_t fg_red;
+  grub_uint8_t fg_green;
+  grub_uint8_t fg_blue;
+  grub_uint8_t fg_alpha;
+};
+
+/* A 2D rectangle type.  */
+struct grub_video_rect
+{
+  unsigned x;
+  unsigned y;
+  unsigned width;
+  unsigned height;
+};
+typedef struct grub_video_rect grub_video_rect_t;
+
+struct grub_video_signed_rect
+{
+  signed x;
+  signed y;
+  unsigned width;
+  unsigned height;
+};
+typedef struct grub_video_signed_rect grub_video_signed_rect_t;
+
+struct grub_video_palette_data
+{
+  grub_uint8_t r; /* Red color value (0-255).  */
+  grub_uint8_t g; /* Green color value (0-255).  */
+  grub_uint8_t b; /* Blue color value (0-255).  */
+  grub_uint8_t a; /* Reserved bits value (0-255).  */
+};
+
+struct grub_video_edid_info
+{
+  grub_uint8_t header[8];
+  grub_uint16_t manufacturer_id;
+  grub_uint16_t product_id;
+  grub_uint32_t serial_number;
+  grub_uint8_t week_of_manufacture;
+  grub_uint8_t year_of_manufacture;
+  grub_uint8_t version;
+  grub_uint8_t revision;
+
+  grub_uint8_t video_input_definition;
+  grub_uint8_t max_horizontal_image_size;
+  grub_uint8_t max_vertical_image_size;
+  grub_uint8_t display_gamma;
+  grub_uint8_t feature_support;
+#define GRUB_VIDEO_EDID_FEATURE_PREFERRED_TIMING_MODE	(1 << 1)
+
+  grub_uint8_t red_green_lo;
+  grub_uint8_t blue_white_lo;
+  grub_uint8_t red_x_hi;
+  grub_uint8_t red_y_hi;
+  grub_uint8_t green_x_hi;
+  grub_uint8_t green_y_hi;
+  grub_uint8_t blue_x_hi;
+  grub_uint8_t blue_y_hi;
+  grub_uint8_t white_x_hi;
+  grub_uint8_t white_y_hi;
+
+  grub_uint8_t established_timings_1;
+  grub_uint8_t established_timings_2;
+  grub_uint8_t manufacturer_reserved_timings;
+
+  grub_uint16_t standard_timings[8];
+
+  struct {
+    grub_uint16_t pixel_clock;
+    /* Only valid if the pixel clock is non-null.  */
+    grub_uint8_t horizontal_active_lo;
+    grub_uint8_t horizontal_blanking_lo;
+    grub_uint8_t horizontal_hi;
+    grub_uint8_t vertical_active_lo;
+    grub_uint8_t vertical_blanking_lo;
+    grub_uint8_t vertical_hi;
+    grub_uint8_t horizontal_sync_offset_lo;
+    grub_uint8_t horizontal_sync_pulse_width_lo;
+    grub_uint8_t vertical_sync_lo;
+    grub_uint8_t sync_hi;
+    grub_uint8_t horizontal_image_size_lo;
+    grub_uint8_t vertical_image_size_lo;
+    grub_uint8_t image_size_hi;
+    grub_uint8_t horizontal_border;
+    grub_uint8_t vertical_border;
+    grub_uint8_t flags;
+  } detailed_timings[4];
+
+  grub_uint8_t extension_flag;
+  grub_uint8_t checksum;
+} GRUB_PACKED;
+
+typedef enum grub_video_driver_id
+  {
+    GRUB_VIDEO_DRIVER_NONE,
+    GRUB_VIDEO_DRIVER_VBE,
+    GRUB_VIDEO_DRIVER_EFI_UGA,
+    GRUB_VIDEO_DRIVER_EFI_GOP,
+    GRUB_VIDEO_DRIVER_SM712,
+    GRUB_VIDEO_DRIVER_VGA,
+    GRUB_VIDEO_DRIVER_CIRRUS,
+    GRUB_VIDEO_DRIVER_BOCHS,
+    GRUB_VIDEO_DRIVER_SDL,
+    GRUB_VIDEO_DRIVER_SIS315PRO,
+    GRUB_VIDEO_DRIVER_RADEON_FULOONG2E,
+    GRUB_VIDEO_DRIVER_COREBOOT,
+    GRUB_VIDEO_DRIVER_IEEE1275,
+    GRUB_VIDEO_ADAPTER_CAPTURE,
+    GRUB_VIDEO_DRIVER_XEN,
+    GRUB_VIDEO_DRIVER_RADEON_YEELOONG3A
+  } grub_video_driver_id_t;
+
+typedef enum grub_video_adapter_prio
+  {
+    GRUB_VIDEO_ADAPTER_PRIO_FALLBACK = 60,
+    GRUB_VIDEO_ADAPTER_PRIO_FIRMWARE_DIRTY = 70,
+    GRUB_VIDEO_ADAPTER_PRIO_FIRMWARE = 80,
+    GRUB_VIDEO_ADAPTER_PRIO_NATIVE = 100
+  } grub_video_adapter_prio_t;
+
+typedef enum grub_video_area_status
+  {
+    GRUB_VIDEO_AREA_DISABLED,
+    GRUB_VIDEO_AREA_ENABLED
+  } grub_video_area_status_t;
+
+struct grub_video_adapter
+{
+  /* The next video adapter.  */
+  struct grub_video_adapter *next;
+  struct grub_video_adapter **prev;
+
+  /* The video adapter name.  */
+  const char *name;
+  grub_video_driver_id_t id;
+
+  grub_video_adapter_prio_t prio;
+
+  /* Initialize the video adapter.  */
+  grub_err_t (*init) (void);
+
+  /* Clean up the video adapter.  */
+  grub_err_t (*fini) (void);
+
+  grub_err_t (*setup) (unsigned int width,  unsigned int height,
+                       grub_video_mode_type_t mode_type,
+		       grub_video_mode_type_t mode_mask);
+
+  grub_err_t (*get_info) (struct grub_video_mode_info *mode_info);
+
+  grub_err_t (*get_info_and_fini) (struct grub_video_mode_info *mode_info,
+				   void **framebuffer);
+
+  grub_err_t (*set_palette) (unsigned int start, unsigned int count,
+                             struct grub_video_palette_data *palette_data);
+
+  grub_err_t (*get_palette) (unsigned int start, unsigned int count,
+                             struct grub_video_palette_data *palette_data);
+
+  grub_err_t (*set_viewport) (unsigned int x, unsigned int y,
+                              unsigned int width, unsigned int height);
+
+  grub_err_t (*get_viewport) (unsigned int *x, unsigned int *y,
+                              unsigned int *width, unsigned int *height);
+
+  grub_err_t (*set_region) (unsigned int x, unsigned int y,
+                            unsigned int width, unsigned int height);
+
+  grub_err_t (*get_region) (unsigned int *x, unsigned int *y,
+                            unsigned int *width, unsigned int *height);
+
+  grub_err_t (*set_area_status) (grub_video_area_status_t area_status);
+
+  grub_err_t (*get_area_status) (grub_video_area_status_t *area_status);
+
+  grub_video_color_t (*map_color) (grub_uint32_t color_name);
+
+  grub_video_color_t (*map_rgb) (grub_uint8_t red, grub_uint8_t green,
+                                 grub_uint8_t blue);
+
+  grub_video_color_t (*map_rgba) (grub_uint8_t red, grub_uint8_t green,
+                                  grub_uint8_t blue, grub_uint8_t alpha);
+
+  grub_err_t (*unmap_color) (grub_video_color_t color,
+                             grub_uint8_t *red, grub_uint8_t *green,
+                             grub_uint8_t *blue, grub_uint8_t *alpha);
+
+  grub_err_t (*fill_rect) (grub_video_color_t color, int x, int y,
+                           unsigned int width, unsigned int height);
+
+  grub_err_t (*blit_bitmap) (struct grub_video_bitmap *bitmap,
+                             enum grub_video_blit_operators oper,
+                             int x, int y, int offset_x, int offset_y,
+                             unsigned int width, unsigned int height);
+
+  grub_err_t (*blit_render_target) (struct grub_video_render_target *source,
+                                    enum grub_video_blit_operators oper,
+                                    int x, int y, int offset_x, int offset_y,
+                                    unsigned int width, unsigned int height);
+
+  grub_err_t (*scroll) (grub_video_color_t color, int dx, int dy);
+
+  grub_err_t (*swap_buffers) (void);
+
+  grub_err_t (*create_render_target) (struct grub_video_render_target **result,
+                                      unsigned int width, unsigned int height,
+                                      unsigned int mode_type);
+
+  grub_err_t (*delete_render_target) (struct grub_video_render_target *target);
+
+  grub_err_t (*set_active_render_target) (struct grub_video_render_target *target);
+
+  grub_err_t (*get_active_render_target) (struct grub_video_render_target **target);
+
+  int (*iterate) (int (*hook) (const struct grub_video_mode_info *info, void *hook_arg), void *hook_arg);
+
+  grub_err_t (*get_edid) (struct grub_video_edid_info *edid_info);
+
+  void (*print_adapter_specific_info) (void);
+};
+typedef struct grub_video_adapter *grub_video_adapter_t;
+
+extern grub_video_adapter_t EXPORT_VAR(grub_video_adapter_list);
+
+#ifndef GRUB_LST_GENERATOR
+/* Register video driver.  */
+static inline void
+grub_video_register (grub_video_adapter_t adapter)
+{
+  grub_video_adapter_t *p;
+  for (p = &grub_video_adapter_list; *p && (*p)->prio > adapter->prio; 
+       p = &((*p)->next));
+  adapter->next = *p;
+  *p = adapter;
+
+  adapter->prev = p;
+  if (adapter->next)
+    adapter->next->prev = &adapter->next;
+}
+#endif
+
+/* Unregister video driver.  */
+static inline void
+grub_video_unregister (grub_video_adapter_t adapter)
+{
+  grub_list_remove (GRUB_AS_LIST (adapter));
+}
+
+#define FOR_VIDEO_ADAPTERS(var) FOR_LIST_ELEMENTS((var), (grub_video_adapter_list))
+
+grub_err_t EXPORT_FUNC (grub_video_restore) (void);
+
+grub_err_t EXPORT_FUNC (grub_video_get_info) (struct grub_video_mode_info *mode_info);
+
+/* Framebuffer address may change as a part of normal operation
+   (e.g. double buffering). That's why you need to stop video subsystem to be
+   sure that framebuffer address doesn't change. To ensure this abstraction
+   grub_video_get_info_and_fini is the only function supplying framebuffer
+   address. */
+grub_err_t EXPORT_FUNC (grub_video_get_info_and_fini) (struct grub_video_mode_info *mode_info,
+					 void **framebuffer);
+
+enum grub_video_blit_format EXPORT_FUNC(grub_video_get_blit_format) (struct grub_video_mode_info *mode_info);
+
+grub_err_t grub_video_set_palette (unsigned int start, unsigned int count,
+                                   struct grub_video_palette_data *palette_data);
+
+grub_err_t EXPORT_FUNC (grub_video_get_palette) (unsigned int start,
+						 unsigned int count,
+						 struct grub_video_palette_data *palette_data);
+
+grub_err_t EXPORT_FUNC (grub_video_set_viewport) (unsigned int x,
+						  unsigned int y,
+						  unsigned int width,
+						  unsigned int height);
+
+grub_err_t EXPORT_FUNC (grub_video_get_viewport) (unsigned int *x,
+						  unsigned int *y,
+						  unsigned int *width,
+						  unsigned int *height);
+
+grub_err_t EXPORT_FUNC (grub_video_set_region) (unsigned int x,
+                                                unsigned int y,
+                                                unsigned int width,
+                                                unsigned int height);
+
+grub_err_t EXPORT_FUNC (grub_video_get_region) (unsigned int *x,
+                                                unsigned int *y,
+                                                unsigned int *width,
+                                                unsigned int *height);
+
+grub_err_t EXPORT_FUNC (grub_video_set_area_status)
+    (grub_video_area_status_t area_status);
+
+grub_err_t EXPORT_FUNC (grub_video_get_area_status)
+    (grub_video_area_status_t *area_status);
+
+grub_video_color_t EXPORT_FUNC (grub_video_map_color) (grub_uint32_t color_name);
+
+grub_video_color_t EXPORT_FUNC (grub_video_map_rgb) (grub_uint8_t red,
+						     grub_uint8_t green,
+						     grub_uint8_t blue);
+
+grub_video_color_t EXPORT_FUNC (grub_video_map_rgba) (grub_uint8_t red,
+						      grub_uint8_t green,
+						      grub_uint8_t blue,
+						      grub_uint8_t alpha);
+
+grub_err_t EXPORT_FUNC (grub_video_unmap_color) (grub_video_color_t color,
+						 grub_uint8_t *red,
+						 grub_uint8_t *green,
+						 grub_uint8_t *blue,
+						 grub_uint8_t *alpha);
+
+grub_err_t EXPORT_FUNC (grub_video_fill_rect) (grub_video_color_t color, 
+					       int x, int y,
+					       unsigned int width,
+					       unsigned int height);
+
+grub_err_t EXPORT_FUNC (grub_video_blit_bitmap) (struct grub_video_bitmap *bitmap,
+						 enum grub_video_blit_operators oper,
+						 int x, int y,
+						 int offset_x, int offset_y,
+						 unsigned int width,
+						 unsigned int height);
+
+grub_err_t EXPORT_FUNC (grub_video_blit_render_target) (struct grub_video_render_target *source,
+							enum grub_video_blit_operators oper,
+							int x, int y,
+							int offset_x,
+							int offset_y,
+							unsigned int width,
+							unsigned int height);
+
+grub_err_t grub_video_scroll (grub_video_color_t color, int dx, int dy);
+
+grub_err_t EXPORT_FUNC (grub_video_swap_buffers) (void);
+
+grub_err_t EXPORT_FUNC (grub_video_create_render_target) (struct grub_video_render_target **result,
+							  unsigned int width,
+							  unsigned int height,
+							  unsigned int mode_type);
+
+grub_err_t EXPORT_FUNC (grub_video_delete_render_target) (struct grub_video_render_target *target);
+
+grub_err_t EXPORT_FUNC (grub_video_set_active_render_target) (struct grub_video_render_target *target);
+
+grub_err_t grub_video_get_active_render_target (struct grub_video_render_target **target);
+
+grub_err_t EXPORT_FUNC (grub_video_edid_checksum) (struct grub_video_edid_info *edid_info);
+grub_err_t EXPORT_FUNC (grub_video_edid_preferred_mode) (struct grub_video_edid_info *edid_info,
+					   unsigned int *width,
+					   unsigned int *height);
+
+grub_err_t EXPORT_FUNC (grub_video_set_mode) (const char *modestring,
+					      unsigned int modemask,
+					      unsigned int modevalue);
+
+static inline int
+grub_video_check_mode_flag (grub_video_mode_type_t flags,
+			    grub_video_mode_type_t mask,
+			    grub_video_mode_type_t flag, int def)
+{
+  return (flag & mask) ? !! (flags & flag) : def;
+}
+
+grub_video_driver_id_t EXPORT_FUNC (grub_video_get_driver_id) (void);
+
+static __inline grub_video_rgba_color_t
+grub_video_rgba_color_rgb (grub_uint8_t r, grub_uint8_t g, grub_uint8_t b)
+{
+  grub_video_rgba_color_t c;
+  c.red = r;
+  c.green = g;
+  c.blue = b;
+  c.alpha = 255;
+  return c;
+}
+
+static __inline grub_video_color_t
+grub_video_map_rgba_color (grub_video_rgba_color_t c)
+{
+  return grub_video_map_rgba (c.red, c.green, c.blue, c.alpha);
+}
+
+#ifndef GRUB_MACHINE_EMU
+extern void grub_font_init (void);
+extern void grub_font_fini (void);
+extern void grub_gfxterm_init (void);
+extern void grub_gfxterm_fini (void);
+extern void grub_video_sm712_init (void);
+extern void grub_video_sm712_fini (void);
+extern void grub_video_sis315pro_init (void);
+extern void grub_video_radeon_fuloong2e_init (void);
+extern void grub_video_sis315pro_fini (void);
+extern void grub_video_radeon_fuloong2e_fini (void);
+extern void grub_video_radeon_yeeloong3a_init (void);
+extern void grub_video_radeon_yeeloong3a_fini (void);
+#endif
+
+void
+grub_video_set_adapter (grub_video_adapter_t adapter);
+grub_video_adapter_t
+grub_video_get_adapter (void);
+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);
+void
+grub_video_capture_end (void);
+
+void *
+grub_video_capture_get_framebuffer (void);
+
+extern grub_video_adapter_t EXPORT_VAR (grub_video_adapter_active);
+extern void (*grub_video_capture_refresh_cb) (void);
+
+#define GRUB_VIDEO_MI_RGB555(x)						\
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,				\
+    x.bpp = 15,								\
+    x.bytes_per_pixel = 2,						\
+    x.number_of_colors = 256,						\
+    x.red_mask_size = 5,						\
+    x.red_field_pos = 10,						\
+    x.green_mask_size = 5,						\
+    x.green_field_pos = 5,						\
+    x.blue_mask_size = 5,						\
+    x.blue_field_pos = 0
+
+#define GRUB_VIDEO_MI_RGB565(x)						\
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,				\
+    x.bpp = 16,								\
+    x.bytes_per_pixel = 2,						\
+    x.number_of_colors = 256,						\
+    x.red_mask_size = 5,						\
+    x.red_field_pos = 11,						\
+    x.green_mask_size = 6,						\
+    x.green_field_pos = 5,						\
+    x.blue_mask_size = 5,						\
+    x.blue_field_pos = 0
+
+#define GRUB_VIDEO_MI_RGB888(x) \
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,			\
+    x.bpp = 24,							\
+    x.bytes_per_pixel = 3,					\
+    x.number_of_colors = 256,					\
+    x.red_mask_size = 8,					\
+    x.red_field_pos = 16,					\
+    x.green_mask_size = 8,					\
+    x.green_field_pos = 8,					\
+    x.blue_mask_size = 8,					\
+    x.blue_field_pos = 0
+
+#define GRUB_VIDEO_MI_RGBA8888(x) \
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,	\
+    x.bpp = 32,					\
+    x.bytes_per_pixel = 4,			\
+    x.number_of_colors = 256,			\
+    x.reserved_mask_size = 8,			\
+    x.reserved_field_pos = 24,			\
+    x.red_mask_size = 8,			\
+    x.red_field_pos = 16,			\
+    x.green_mask_size = 8,			\
+    x.green_field_pos = 8,			\
+    x.blue_mask_size = 8,			\
+    x.blue_field_pos = 0
+
+
+#define GRUB_VIDEO_MI_BGR555(x)						\
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,				\
+    x.bpp = 15,								\
+    x.bytes_per_pixel = 2,						\
+    x.number_of_colors = 256,						\
+    x.red_mask_size = 5,						\
+    x.red_field_pos = 0,						\
+    x.green_mask_size = 5,						\
+    x.green_field_pos = 5,						\
+    x.blue_mask_size = 5,						\
+    x.blue_field_pos = 10
+
+#define GRUB_VIDEO_MI_BGR565(x)						\
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,				\
+    x.bpp = 16,								\
+    x.bytes_per_pixel = 2,						\
+    x.number_of_colors = 256,						\
+    x.red_mask_size = 5,						\
+    x.red_field_pos = 0,						\
+    x.green_mask_size = 6,						\
+    x.green_field_pos = 5,						\
+    x.blue_mask_size = 5,						\
+    x.blue_field_pos = 11
+
+#define GRUB_VIDEO_MI_BGR888(x) \
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,			\
+    x.bpp = 24,							\
+    x.bytes_per_pixel = 3,					\
+    x.number_of_colors = 256,					\
+    x.red_mask_size = 8,					\
+    x.red_field_pos = 0,					\
+    x.green_mask_size = 8,					\
+    x.green_field_pos = 8,					\
+    x.blue_mask_size = 8,					\
+    x.blue_field_pos = 16
+
+#define GRUB_VIDEO_MI_BGRA8888(x) \
+  x.mode_type = GRUB_VIDEO_MODE_TYPE_RGB,	\
+    x.bpp = 32,					\
+    x.bytes_per_pixel = 4,			\
+    x.number_of_colors = 256,			\
+    x.reserved_mask_size = 8,			\
+    x.reserved_field_pos = 24,			\
+    x.red_mask_size = 8,			\
+    x.red_field_pos = 0,			\
+    x.green_mask_size = 8,			\
+    x.green_field_pos = 8,			\
+    x.blue_mask_size = 8,			\
+    x.blue_field_pos = 16
+
+#endif /* ! GRUB_VIDEO_HEADER */