diff options
Diffstat (limited to 'console-client/fb.h')
| -rw-r--r-- | console-client/fb.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/console-client/fb.h b/console-client/fb.h new file mode 100644 index 00000000..c32947ad --- /dev/null +++ b/console-client/fb.h @@ -0,0 +1,136 @@ +/* + Copyright (C) 2024 Free Software Foundation, Inc. + + This file is part of the GNU Hurd. + + The GNU Hurd 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, or (at + your option) any later version. + + The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ + +#ifndef _FB_H_ +#define _FB_H_ 1 + +#include <stdint.h> +#include "bdf.h" +#include "display.h" +#include "vga-hw.h" + +#define FB_VIDEO_MEM_MAX_W 1920 +#define FB_VIDEO_MEM_MAX_H 1080 +#define FB_VIDEO_MEM_MAX_BPP 32 + +#define FONT_PIXELS_W 8 +#define FONT_PIXELS_H 16 + +extern struct display_ops fb_display_ops; + +extern off_t fb_ptr; +extern int fb_type; +extern int fb_width; +extern int fb_height; +extern int fb_bpp; +extern int fb_wc; +extern int fb_hc; + +error_t fb_get_multiboot_params (void); +error_t fb_display_start (void *handle); +error_t fb_display_fini (void *handle, int force); + +struct multiboot_framebuffer_info { + uint64_t framebuffer_addr; + uint32_t framebuffer_pitch; + uint32_t framebuffer_width; + uint32_t framebuffer_height; + uint8_t framebuffer_bpp; +#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0 +#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1 +#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2 + uint8_t framebuffer_type; + union + { + struct + { + uint32_t framebuffer_palette_addr; + uint16_t framebuffer_palette_num_colors; + }; + struct + { + uint8_t framebuffer_red_field_position; + uint8_t framebuffer_red_mask_size; + uint8_t framebuffer_green_field_position; + uint8_t framebuffer_green_mask_size; + uint8_t framebuffer_blue_field_position; + uint8_t framebuffer_blue_mask_size; + }; + }; +} __attribute__((packed)); + +/* + * Multiboot information structure as passed by the boot loader. + */ +struct multiboot_raw_info { + uint32_t flags; + uint32_t mem_lower; + uint32_t mem_upper; + uint32_t unused0; + uint32_t cmdline; + uint32_t mods_count; + uint32_t mods_addr; + uint32_t shdr_num; + uint32_t shdr_size; + uint32_t shdr_addr; + uint32_t shdr_strndx; + uint32_t mmap_length; + uint32_t mmap_addr; + uint32_t unused1[9]; + struct multiboot_framebuffer_info fb_info; +} __attribute__((packed)); + +struct fbchr +{ + wchar_t chr; + unsigned int used : 1; + unsigned int fgcol: 3; + unsigned int bgcol: 3; +}; + +typedef struct fb_mousecursor +{ + float posx; + float posy; + int visible; + int enabled; +} fb_mousecursor_t; + +struct fb_display +{ + /* The font for this display. */ + bdf_font_t font; + + int width; + int height; + + /* The state of the mouse cursor. */ + fb_mousecursor_t mousecursor; + + /* The position of the cursor (in characters) */ + int cursor_pos_x; + int cursor_pos_y; + + /* Remember for each cell on the display the glyph written to it and + the colours assigned. 0 means unassigned. */ + + struct fbchr refmatrix[FB_VIDEO_MEM_MAX_H / FONT_PIXELS_H][FB_VIDEO_MEM_MAX_W / FONT_PIXELS_W]; +}; + +#endif |