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/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_VCONS_H_
#define _DEV_VCONS_H_
#include <sys/types.h>
#include <sys/termios.h>
#include <dev/video/fbdev.h>
#include <sysfont.h>
#define VCONS_TAB_WIDTH 4
#define VCONS_CURSOR_WIDTH FONT_WIDTH
#define VCONS_CURSOR_HEIGHT FONT_HEIGHT
struct vcons_cursor {
size_t xpos, ypos;
uint32_t rgb;
/* Internal */
uint32_t old_xpos, old_ypos;
volatile bool is_drawing;
volatile bool is_drawn; /* If it has been drawn before */
};
struct vcons_screen {
size_t nrows, ncols;
size_t cpy_x, cpy_y; /* In chars */
size_t cpy_len;
uint32_t bg;
uint32_t fg;
void *fbdev_mem;
struct fbdev fbdev;
struct vcons_cursor cursor;
};
#define is_cursor_drawing(screenptr) (screenptr)->cursor.is_drawing
void vcons_attach(struct vcons_screen *scr);
int vcons_putch(struct vcons_screen *scr, char c);
int vcons_putstr(struct vcons_screen *scr, const char *s, size_t len);
void vcons_update_cursor(struct vcons_screen *scr);
#endif /* !_DEV_VCONS_H_ */
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