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/*
* Copyright © 2008-2010 dragchan <zgchan317@gmail.com>
* This file is part of FbTerm.
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef VBE_H
#define VBE_H
#define VBE_FUN_GET_INFO 0x4f00
#define VBE_FUN_GET_MODE_INFO 0x4f01
#define VBE_FUN_SET_MODE 0x4f02
#define VBE_FUN_GET_CURRENT_MODE 0x4f03
#define VBE_FUN_SAVE_RESTORE_STATE 0x4f04
#define VBE_FUN_DISPLAY_WIN_CONTROL 0x4f05
#define VBE_FUN_LOGICAL_SCANLINE 0x4f06
#define VBE_FUN_DISPLAY_START 0x4f07
#define VBE_FUN_PALETTE_FORMAT 0x4f08
#define VBE_FUN_PALETTE_DATA 0x4f09
#define VBE_ATTR_MODE_SUPPORTED (1 << 0)
#define VBE_ATTR_TTY (1 << 2)
#define VBE_ATTR_COLOR (1 << 3)
#define VBE_ATTR_GRAPHICS (1 << 4)
#define VBE_ATTR_NOT_VGA (1 << 5)
#define VBE_ATTR_NOT_WINDOWED (1 << 6)
#define VBE_ATTR_LINEAR (1 << 7)
#define VBE_MODEL_TEXT 0
#define VBE_MODEL_CGA 1
#define VBE_MODEL_HERCULES 2
#define VBE_MODEL_PLANAR 3
#define VBE_MODEL_PACKED 4
#define VBE_MODEL_256 5
#define VBE_MODEL_RGB 6
#define VBE_MODEL_YUV 7
/* structures for vbe 3.0 */
struct vbe_info_block {
char vbe_signature[4];
short vbe_version;
unsigned short oem_string_off;
unsigned short oem_string_seg;
int capabilities;
unsigned short video_mode_list_off;
unsigned short video_mode_list_seg;
short total_memory;
short oem_software_rev;
unsigned short oem_vendor_name_off;
unsigned short oem_vendor_name_seg;
unsigned short oem_product_name_off;
unsigned short oem_product_name_seg;
unsigned short oem_product_rev_off;
unsigned short oem_product_rev_seg;
char reserved[222];
char oem_data[256];
} __attribute__ ((packed));
struct vbe_mode_info_block {
unsigned short mode_attributes;
unsigned char win_a_attributes;
unsigned char win_b_attributes;
unsigned short win_granularity;
unsigned short win_size;
unsigned short win_a_segment;
unsigned short win_b_segment;
unsigned short win_func_ptr_off;
unsigned short win_func_ptr_seg;
unsigned short bytes_per_scanline;
unsigned short x_resolution;
unsigned short y_resolution;
unsigned char x_char_size;
unsigned char y_char_size;
unsigned char number_of_planes;
unsigned char bits_per_pixel;
unsigned char number_of_banks;
unsigned char memory_model;
unsigned char bank_size;
unsigned char number_of_image_pages;
unsigned char res1;
unsigned char red_mask_size;
unsigned char red_field_position;
unsigned char green_mask_size;
unsigned char green_field_position;
unsigned char blue_mask_size;
unsigned char blue_field_position;
unsigned char rsvd_mask_size;
unsigned char rsvd_field_position;
unsigned char direct_color_mode_info;
unsigned int phys_base_ptr;
unsigned int offscreen_mem_offset;
unsigned short offscreen_mem_size;
unsigned short lin_bytes_per_scanline;
unsigned char bnk_number_of_image_page;
unsigned char lin_number_of_image_pages;
unsigned char lin_red_mask_size;
unsigned char lin_red_field_position;
unsigned char lin_green_mask_size;
unsigned char lin_green_field_position;
unsigned char lin_blue_mask_size;
unsigned char lin_blue_field_position;
unsigned char lin_rsvd_mask_size;
unsigned char lin_rsvd_field_position;
unsigned int max_pixel_clock;
unsigned char res2[189];
} __attribute__ ((packed));
struct vbe_palette_entry {
unsigned char blue;
unsigned char green;
unsigned char red;
unsigned char align;
} __attribute__ ((packed));
#endif
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