Fast and reasonably complete (framebuffer) terminal emulator (Zig fork)
pci.express
1#ifndef _TERM_H
2#define _TERM_H
3
4#ifdef __cplusplus
5extern "C" {
6#endif
7
8#include <stddef.h>
9#include <stdint.h>
10#include <stdbool.h>
11
12#define TERM_MAX_ESC_VALUES 16
13
14#define TERM_CB_DEC 10
15#define TERM_CB_BELL 20
16#define TERM_CB_PRIVATE_ID 30
17#define TERM_CB_STATUS_REPORT 40
18#define TERM_CB_POS_REPORT 50
19#define TERM_CB_KBD_LEDS 60
20#define TERM_CB_MODE 70
21#define TERM_CB_LINUX 80
22
23struct term_context {
24 /* internal use */
25
26 size_t tab_size;
27 bool autoflush;
28 bool cursor_enabled;
29 bool scroll_enabled;
30 bool control_sequence;
31 bool csi;
32 bool escape;
33 bool osc;
34 bool osc_escape;
35 bool rrr;
36 bool discard_next;
37 bool bold;
38 bool bg_bold;
39 bool reverse_video;
40 bool dec_private;
41 bool insert_mode;
42 uint64_t code_point;
43 size_t unicode_remaining;
44 uint8_t g_select;
45 uint8_t charsets[2];
46 size_t current_charset;
47 size_t escape_offset;
48 size_t esc_values_i;
49 size_t saved_cursor_x;
50 size_t saved_cursor_y;
51 size_t current_primary;
52 size_t current_bg;
53 size_t scroll_top_margin;
54 size_t scroll_bottom_margin;
55 uint32_t esc_values[TERM_MAX_ESC_VALUES];
56 bool saved_state_bold;
57 bool saved_state_bg_bold;
58 bool saved_state_reverse_video;
59 size_t saved_state_current_charset;
60 size_t saved_state_current_primary;
61 size_t saved_state_current_bg;
62
63 /* to be set by backend */
64
65 size_t rows, cols;
66 bool in_bootloader;
67
68 void (*raw_putchar)(struct term_context *, uint8_t c);
69 void (*clear)(struct term_context *, bool move);
70 void (*set_cursor_pos)(struct term_context *, size_t x, size_t y);
71 void (*get_cursor_pos)(struct term_context *, size_t *x, size_t *y);
72 void (*set_text_fg)(struct term_context *, size_t fg);
73 void (*set_text_bg)(struct term_context *, size_t bg);
74 void (*set_text_fg_bright)(struct term_context *, size_t fg);
75 void (*set_text_bg_bright)(struct term_context *, size_t bg);
76 void (*set_text_fg_rgb)(struct term_context *, uint32_t fg);
77 void (*set_text_bg_rgb)(struct term_context *, uint32_t bg);
78 void (*set_text_fg_default)(struct term_context *);
79 void (*set_text_bg_default)(struct term_context *);
80 void (*set_text_fg_default_bright)(struct term_context *);
81 void (*set_text_bg_default_bright)(struct term_context *);
82 void (*move_character)(struct term_context *, size_t new_x, size_t new_y, size_t old_x, size_t old_y);
83 void (*scroll)(struct term_context *);
84 void (*revscroll)(struct term_context *);
85 void (*swap_palette)(struct term_context *);
86 void (*save_state)(struct term_context *);
87 void (*restore_state)(struct term_context *);
88 void (*double_buffer_flush)(struct term_context *);
89 void (*full_refresh)(struct term_context *);
90 void (*deinit)(struct term_context *, void (*)(void *, size_t));
91
92 /* to be set by client */
93
94 void (*callback)(struct term_context *, uint64_t, uint64_t, uint64_t, uint64_t);
95};
96
97void term_context_reinit(struct term_context *ctx);
98void term_write(struct term_context *ctx, const char *buf, size_t count);
99
100#ifdef __cplusplus
101}
102#endif
103
104#endif