1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
#pragma once
#include "types.h"
#ifdef __VGABUF___
#define SCREEN_CHARACTER_WIDTH 9
#define SCREEN_CHARACTER_HEIGHT 15
typedef union color {
struct
{
uint8_t blue;
uint8_t green;
uint8_t red;
uint8_t alpha;
} channels;
uint32_t value;
} packed color_t;
void screen_init();
size_t screen_get_width();
size_t screen_get_height();
size_t screen_get_character_width();
size_t screen_get_character_height();
void screen_draw_string(size_t x, size_t y, const char *s, size_t len,
color_t color);
void screen_fill(color_t color);
void screen_fill_rect(size_t x, size_t y, size_t width, size_t height,
color_t color);
void screen_draw_rect(size_t x, size_t y, size_t width, size_t height,
color_t color);
void screen_copy_rect(size_t fromx, size_t fromy, size_t width, size_t height,
size_t tox, size_t toy);
void screen_flush();
void screen_print_shutdown();
#else
#define VGA_WIDTH ((uint16_t)80)
#define VGA_HEIGHT ((uint16_t)25)
#define VGA_LINE_SIZE ((size_t)(VGA_WIDTH * sizeof(uint16_t)))
#define VGA_AREA ((uint16_t)(VGA_WIDTH * VGA_HEIGHT))
#define VGA_BUFFER_SIZE ((uint16_t)(VGA_WIDTH * VGA_HEIGHT))
#define VGA_DEFAULT_ATTRIB 0xF
void vga_init();
void vga_write_char_at(size_t row, size_t col, uint16_t v);
void vga_set_cursor(size_t row, size_t col);
void vga_clear_screen();
void screen_print_shutdown();
void vga_enable_cursor();
void vga_disable_cursor();
#endif
|
