#ifndef __AALIB_INCLUDED__
#define __AALIB_INCLUDED__
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
#define AA_LIB_VERSION 1
#define AA_LIB_MINNOR 0

#ifndef NULL
#define NULL 0
#endif

#ifdef DEBUG
#define debugStr(s) printf("%s\n",(s));
#else
#define debugStr(s)
#endif

#define AA_NATTRS 5
#define AA_NPARAMS 5

#define AA_NONE 0		/*special keycodes */
#define AA_RESIZE 258
#define AA_MOUSE 259
#define AA_UP 300
#define AA_DOWN 301
#define AA_LEFT 302
#define AA_RIGHT 303
#define AA_BACKSPACE 304
#define AA_ESC 305
#define AA_UNKNOWN 400
#define AA_RELEASE 65536


#define AA_NORMAL_MASK 1	/*masks for attributes */
#define AA_DIM_MASK 2
#define AA_BOLD_MASK 4
#define AA_BOLDFONT_MASK 8
#define AA_REVERSE_MASK 16
#define AA_ALL 128
#define AA_EIGHT 256
#define AA_EXTENDED (AA_ALL|AA_EIGHT)

#define AA_NORMAL 0		/*attribute numbers */
#define AA_DIM 1
#define AA_BOLD 2
#define AA_BOLDFONT 3
#define AA_REVERSE 4
#define AA_SPECIAL 5

#define AA_ERRORDISTRIB 1	/*dithering types + AA_NONE */
#define AA_FLOYD_S 2
#define AA_DITHERTYPES 3

#define AA_BUTTON1 1		/*mouse */
#define AA_BUTTON2 2
#define AA_BUTTON3 4
#define AA_MOUSEMOVEMASK 1
#define AA_MOUSEPRESSMASK 2
#define AA_PRESSEDMOVEMAKS 4
#define AA_MOUSEALLMASK 7

#define AA_SENDRELEASE 1
#define AA_KBDALLMASK 1

#define AA_USE_PAGES 1		/*save format flags */
#define AA_HTML_ESCAPED 2
#define AA_C_ESCAPED 4
#define AA_NORMAL_SPACES 8


struct aa_hardware_params {
    struct aa_font *font;
    int supported;
    int minwidth, minheight;
    int maxwidth, maxheight;
    int recwidth, recheight;
    int mmwidth, mmheight;
    int width, height;
    double dimmul, boldmul;
};

struct aa_context {
    struct aa_driver *driver;
	struct aa_hardware_params params;
	int mulx, muly;
	int imgwidth, imgheight;
	unsigned char *imagebuffer;
	unsigned char *textbuffer;
	unsigned char *attrbuffer;
	unsigned short *table;
	unsigned short *filltable;
	struct parameters *parameters;
	int cursorx, cursory, cursorstate;
	void (*resizehandler) (struct aa_context *);
    void *driverdata;
};

struct aa_driver {
    char *shortname, *name;
    struct aa_hardware_params params;
    int (*init) (void *);
    void (*uninit) (struct aa_context *);
    void (*getsize) (struct aa_context *, int *, int *);
    void (*setattr) (struct aa_context *, int);
    void (*print) (struct aa_context *, char *);
    void (*update) (struct aa_context *, int, int, int, int);
    void (*gotoxy) (struct aa_context *, int, int);
    void (*flush) (struct aa_context *);
    void (*cursormode) (struct aa_context *, int);
};

struct aa_renderparams {
	int bright, contrast;
	float gamma;
	int dither;
	int inversion;
	int randomval;
};

struct aa_edit {
	int maxsize;
	char *data;
	int cursor;
	int clearafterpress;
	int printpos;
	int x, y, size;
	struct aa_context *c;
};

struct parameters {
	unsigned int p[AA_NPARAMS];
};

struct aa_font {
	unsigned char *data;
	int height;
	char *name;
	char *shortname;
};

struct aa_format {
	int width, height;
	int pagewidth, pageheight;
	int flags;
	int supported;
	struct aa_font *font;
	char *formatname;
	char *extension;
	char *head;
	char *end;
	char *newline;
	char *prints[AA_NATTRS];
	char *begin[AA_NATTRS];
	char *ends[AA_NATTRS];
};

struct aa_savedata {
	char *name;
	struct aa_format *format;
};

struct aa_linkedlist {
	char *text;
	struct aa_linkedlist *next, *previous;
};

typedef struct aa_context aa_context;
typedef struct aa_linkedlist aa_linkedlist;
typedef struct aa_linkedlist aa_reclist;
typedef struct aa_renderparams aa_renderparams;
typedef struct aa_hardwareparams aa_hardware_params;
typedef struct aa_driver aa_driver;
typedef struct aa_font aa_font;
typedef struct aa_format aa_format;
typedef struct aa_savedata aa_savedata;
typedef int aa_palette[256];

extern struct aa_driver save_d, mem_d;
extern char *aa_help;
extern struct aa_format aa_htmlk_format, *aa_formats[];
extern struct aa_format aa_nhtml_format, aa_html_format, aa_ansi_format,
 aa_text_format, aa_more_format, aa_hp_format, aa_hp2_format;
extern struct aa_font *aa_fonts[];
extern int nfonts;
extern struct aa_font font8, font14, font16, font9, fontline, fontgl,
 fontX13, fontX16, fontX13B, fontcourier;
extern char *aa_dithernames[];
extern struct aa_hardware_params aa_defparams;
extern struct aa_renderparams aa_defrenderparams;
extern struct aa_driver *aa_drivers[], curses_d, dos_d, linux_d, slang_d,
 stdout_d, stderr_d, X11_d;
extern aa_linkedlist *aa_kbdrecommended, *aa_mouserecommended, *aa_displayrecommended;

#define aa_callnonull(c,x) ((x)!=NULL?((x)(c)):0)
#define aa_scrwidth(a) ((a)->params.width)
#define aa_scrheight(a) ((a)->params.height)
#define aa_mmwidth(a) ((a)->params.mmwidth)
#define aa_mmheight(a) ((a)->params.mmheight)
#define aa_imgwidth(a) ((a)->imgwidth)
#define aa_imgheight(a) ((a)->imgheight)
#define aa_putpixel(c,x,y,color) ((c)->imagebuffer[(x)+(y)*(aa_imgwidth(c))]=(color))
#define aa_image(c) ((c)->imagebuffer)
#define aa_text(c) ((c)->textbuffer)
#define aa_attrs(c) ((c)->attrbuffer)
#define aa_setpalette(palette,index,r,g,b) ((palette)[index]=(((r)*30+(g)*59+(b)*11)>>8))

/*init functions */
aa_context *aa_init(struct aa_driver *driver, int width, int height, void *driverdata);

/*uninicializing functions */
void aa_close(aa_context * c);

/*rendering functions */
void aa_fastrender(aa_context * c, int x1, int y1, int x2, int y2);
void aa_render(aa_context * c, aa_renderparams * p, int x1, int y1, int x2, int y2);
void aa_renderpalette(aa_context * c, aa_palette table, aa_renderparams * p, int x1, int y1, int x2, int y2);
aa_renderparams *aa_getrenderparams(void);
void aa_flush(aa_context * c);

/*text i/o functions */
void aa_puts(aa_context * c, int x, int y, int attr, char *s);
void aa_gotoxy(aa_context * c, int x, int y);

/*hardware parameters control */
int aa_registerfont(struct aa_font *f);
void aa_setsupported(aa_context * c, int supported);
void aa_setfont(aa_context * c, struct aa_font *font);

/*resize functions */
int aa_resize(aa_context * c);
void aa_resizehandler(aa_context * c, void (*handler) (aa_context *));

#ifdef __cplusplus
}
#endif
#endif