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/*
* crt.h:
*
* Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
* All rights reserved.
*
*/
/*
* $Id$
*/
/*
* $Log$
* Revision 1.9 2008/02/20 19:25:09 james
* *** empty log message ***
*
* Revision 1.8 2008/02/13 09:12:21 james
* *** empty log message ***
*
* Revision 1.7 2008/02/13 01:08:18 james
* *** empty log message ***
*
* Revision 1.6 2008/02/07 13:22:51 james
* *** empty log message ***
*
* Revision 1.5 2008/02/07 12:41:06 james
* *** empty log message ***
*
* Revision 1.4 2008/02/07 12:16:04 james
* *** empty log message ***
*
* Revision 1.3 2008/02/06 11:30:37 james
* *** empty log message ***
*
* Revision 1.2 2008/02/04 20:23:55 james
* *** empty log message ***
*
* Revision 1.1 2008/02/03 23:31:25 james
* *** empty log message ***
*
*/
#ifndef __CRT_H__
#define __CRT_H__
#define CRT_ROWS 25
#define CRT_COLS 80
#define CRT_CELS (CRT_ROWS*CRT_COLS)
#define CRT_ADDR(r,c) (((r)*CRT_COLS)+(c))
#define CRT_ADDR_POS(p) ((((p)->y)*CRT_COLS)+((p)->x))
#define CRT_ATTR_NORMAL 0x0
#define CRT_ATTR_UNDERLINE 0x1
#define CRT_ATTR_REVERSE 0x2
#define CRT_ATTR_BLINK 0x4
#define CRT_ATTR_BOLD 0x8
#define CRT_COLOR_BLACK 0x0
#define CRT_COLOR_RED 0x1
#define CRT_COLOR_GREEN 0x2
#define CRT_COLOR_YELLOW 0x3
#define CRT_COLOR_BLUE 0x4
#define CRT_COLOR_MAGENTA 0x5
#define CRT_COLOR_CYAN 0x6
#define CRT_COLOR_WHITE 0x7
#define CRT_COLOR_INTENSITY 0x8
#define CRT_COLOR_FG_MASK 0xf0
#define CRT_COLOR_FG_SHIFT 4
#define CRT_COLOR_BG_MASK 0xf
#define CRT_COLOR_BG_SHIFT 0
#define CRT_COLOR_BG(a) (((a) & CRT_COLOR_BG_MASK) >> CRT_COLOR_BG_SHIFT)
#define CRT_COLOR_FG(a) (((a) & CRT_COLOR_FG_MASK) >> CRT_COLOR_FG_SHIFT)
#define CRT_MAKE_COLOR(f,b) (((f) << CRT_COLOR_FG_SHIFT)|(b))
#define CRT_BGCOLOR_NORMAL CRT_COLOR_BLACK
#define CRT_FGCOLOR_NORMAL CRT_COLOR_WHITE
#define CRT_COLOR_NORMAL CRT_MAKE_COLOR(CRT_FGCOLOR_NORMAL,CRT_BGCOLOR_NORMAL)
typedef struct
{
uint8_t chr;
uint8_t attr;
uint8_t color;
} CRT_CA;
typedef struct
{
int x;
int y;
} CRT_Pos;
typedef struct
{
CRT_Pos s;
CRT_Pos e;
int dir;
} CRT_ScrollHint;
typedef struct CRT_struct
{
CRT_CA screen[CRT_CELS];
CRT_Pos pos;
CRT_ScrollHint sh;
int hide_cursor;
} CRT;
static inline
crt_ca_cmp (CRT_CA a, CRT_CA b)
{
return memcmp (&a, &b, sizeof (a));
}
static inline
crt_pos_cmp (CRT_Pos a, CRT_Pos b)
{
return memcmp (&a, &b, sizeof (a));
}
#endif /* __CRT_H__ */
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