111 lines
3.8 KiB
C
111 lines
3.8 KiB
C
#pragma once
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#ifdef _KERNEL_
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# include <types.h>
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#else
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#include <stdint.h>
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#endif
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#define TERM_BUF_LEN 128
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/* A terminal cell represents a single character on screen */
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typedef struct {
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uint32_t c; /* codepoint */
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uint32_t fg; /* background indexed color */
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uint32_t bg; /* foreground indexed color */
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uint32_t flags; /* other flags */
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} term_cell_t;
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typedef struct {
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void (*writer)(char);
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void (*set_color)(uint32_t, uint32_t);
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void (*set_csr)(int,int);
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int (*get_csr_x)(void);
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int (*get_csr_y)(void);
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void (*set_cell)(int,int,uint32_t);
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void (*cls)(int);
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void (*scroll)(int);
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void (*redraw_cursor)(void);
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void (*input_buffer_stuff)(char *);
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void (*set_font_size)(float);
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void (*set_title)(char *);
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void (*set_cell_contents)(int,int,char *);
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int (*get_cell_width)(void);
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int (*get_cell_height)(void);
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void (*set_csr_on)(int);
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} term_callbacks_t;
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typedef struct {
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uint16_t x; /* Current cursor location */
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uint16_t y; /* " " " */
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uint16_t save_x; /* Last cursor save */
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uint16_t save_y;
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uint32_t width; /* Terminal width */
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uint32_t height; /* " height */
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uint32_t fg; /* Current foreground color */
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uint32_t bg; /* Current background color */
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uint8_t flags; /* Bright, etc. */
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uint8_t escape; /* Escape status */
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uint8_t box;
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uint8_t buflen; /* Buffer Length */
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char buffer[TERM_BUF_LEN]; /* Previous buffer */
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term_callbacks_t * callbacks;
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int volatile lock;
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uint8_t mouse_on;
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uint32_t img_collected;
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uint32_t img_size;
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char * img_data;
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} term_state_t;
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/* Triggers escape mode. */
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#define ANSI_ESCAPE 27
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/* Escape verify */
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#define ANSI_BRACKET '['
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#define ANSI_BRACKET_RIGHT ']'
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#define ANSI_OPEN_PAREN '('
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/* Anything in this range (should) exit escape mode. */
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#define ANSI_LOW 'A'
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#define ANSI_HIGH 'z'
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/* Escape commands */
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#define ANSI_CUU 'A' /* CUrsor Up */
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#define ANSI_CUD 'B' /* CUrsor Down */
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#define ANSI_CUF 'C' /* CUrsor Forward */
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#define ANSI_CUB 'D' /* CUrsor Back */
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#define ANSI_CNL 'E' /* Cursor Next Line */
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#define ANSI_CPL 'F' /* Cursor Previous Line */
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#define ANSI_CHA 'G' /* Cursor Horizontal Absolute */
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#define ANSI_CUP 'H' /* CUrsor Position */
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#define ANSI_ED 'J' /* Erase Data */
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#define ANSI_EL 'K' /* Erase in Line */
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#define ANSI_SU 'S' /* Scroll Up */
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#define ANSI_SD 'T' /* Scroll Down */
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#define ANSI_HVP 'f' /* Horizontal & Vertical Pos. */
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#define ANSI_SGR 'm' /* Select Graphic Rendition */
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#define ANSI_DSR 'n' /* Device Status Report */
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#define ANSI_SCP 's' /* Save Cursor Position */
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#define ANSI_RCP 'u' /* Restore Cursor Position */
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#define ANSI_HIDE 'l' /* DECTCEM - Hide Cursor */
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#define ANSI_SHOW 'h' /* DECTCEM - Show Cursor */
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/* Display flags */
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#define ANSI_BOLD 0x01
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#define ANSI_UNDERLINE 0x02
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#define ANSI_ITALIC 0x04
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#define ANSI_ALTFONT 0x08 /* Character should use alternate font */
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#define ANSI_SPECBG 0x10
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#define ANSI_BORDER 0x20
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#define ANSI_WIDE 0x40 /* Character is double width */
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#define ANSI_CROSS 0x80 /* And that's all I'm going to support (for now) */
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#define ANSI_EXT_IMG 0x100 /* Cell is actually an image, use fg color as pointer */
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#define ANSI_EXT_IOCTL 'z' /* These are special escapes only we support */
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/* Default color settings */
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#define TERM_DEFAULT_FG 0x07 /* Index of default foreground */
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#define TERM_DEFAULT_BG 0x10 /* Index of default background */
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#define TERM_DEFAULT_FLAGS 0x00 /* Default flags for a cell */
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#define TERM_DEFAULT_OPAC 0xF2 /* For background, default transparency */
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term_state_t * ansi_init(term_state_t * s, int w, int y, term_callbacks_t * callbacks_in);
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void ansi_put(term_state_t * s, char c);
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