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c3cb2067d9
Move the VT100 terminal emulation code into dedicated ui/vt100.c and ui/vt100.h files, completing the extraction from console-vc.c started in the previous patches. This makes the VT100 layer a self-contained module that can be reused independently of the chardev/console infrastructure. The code is moved as-is, with minor coding style fixes (adding missing braces, fixing whitespace) applied during the move. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/*
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* SPDX-License-Identifier: MIT
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* QEMU vt100
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*/
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#ifndef VT100_H
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#define VT100_H
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#include "chardev/char.h"
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#include "ui/console.h"
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#include "qemu/fifo8.h"
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#include "qemu/queue.h"
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typedef struct TextAttributes {
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uint8_t fgcol:4;
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uint8_t bgcol:4;
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uint8_t bold:1;
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uint8_t uline:1;
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uint8_t blink:1;
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uint8_t invers:1;
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uint8_t unvisible:1;
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} TextAttributes;
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#define TEXT_ATTRIBUTES_DEFAULT ((TextAttributes) { \
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.fgcol = QEMU_COLOR_WHITE, \
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.bgcol = QEMU_COLOR_BLACK \
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})
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typedef struct TextCell {
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uint8_t ch;
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TextAttributes t_attrib;
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} TextCell;
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#define MAX_ESC_PARAMS 3
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enum TTYState {
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TTY_STATE_NORM,
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TTY_STATE_ESC,
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TTY_STATE_CSI,
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TTY_STATE_G0,
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TTY_STATE_G1,
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TTY_STATE_OSC,
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};
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typedef struct QemuVT100 QemuVT100;
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struct QemuVT100 {
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pixman_image_t *image;
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void (*image_update)(QemuVT100 *vt, int x, int y, int width, int height);
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ChardevVCEncoding encoding;
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int width;
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int height;
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int total_height;
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int backscroll_height;
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int x, y;
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int y_displayed;
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int y_base;
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TextCell *cells;
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int text_x[2], text_y[2], cursor_invalidate;
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int echo;
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int update_x0;
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int update_y0;
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int update_x1;
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int update_y1;
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enum TTYState state;
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int esc_params[MAX_ESC_PARAMS];
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int nb_esc_params;
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uint32_t utf8_state; /* UTF-8 DFA decoder state */
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uint32_t utf8_codepoint; /* accumulated UTF-8 code point */
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TextAttributes t_attrib; /* currently active text attributes */
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TextAttributes t_attrib_saved;
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int x_saved, y_saved;
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/* fifo for key pressed */
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Fifo8 out_fifo;
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void (*out_flush)(QemuVT100 *vt);
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QTAILQ_ENTRY(QemuVT100) list;
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};
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void vt100_init(QemuVT100 *vt,
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pixman_image_t *image,
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ChardevVCEncoding encoding,
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void (*image_update)(QemuVT100 *vt, int x, int y, int width, int height),
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void (*out_flush)(QemuVT100 *vt));
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void vt100_fini(QemuVT100 *vt);
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void vt100_update_cursor(void);
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size_t vt100_input(QemuVT100 *vt, const uint8_t *buf, size_t len);
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void vt100_keysym(QemuVT100 *vt, int keysym);
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void vt100_set_image(QemuVT100 *vt, pixman_image_t *image);
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void vt100_refresh(QemuVT100 *vt);
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#endif
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