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/*
* libcaca Colour ASCII-Art library
* Copyright (c) 2002-2012 Sam Hocevar <sam@hocevar.net>
* All Rights Reserved
*
* This library is free software. It comes without any warranty, to
* the extent permitted by applicable law. You can redistribute it
* and/or modify it under the terms of the Do What the Fuck You Want
* to Public License, Version 2, as published by Sam Hocevar. See
* http://www.wtfpl.net/ for more details.
*/
/*
* This file contains the libcaca DOS/conio.h input and output driver
*/
#include "config.h"
#if defined(USE_CONIO)
#include <dos.h>
#include <conio.h>
#if defined(SCREENUPDATE_IN_PC_H)
# include <pc.h>
#endif
#include <stdlib.h>
#include "caca.h"
#include "caca_internals.h"
struct driver_private
{
struct text_info ti;
char *screen;
};
static int conio_init_graphics(caca_display_t *dp)
{
dp->drv.p = malloc(sizeof(struct driver_private));
_wscroll = 0;
_setcursortype(_NOCURSOR);
clrscr();
gettextinfo(&dp->drv.p->ti);
dp->drv.p->screen = malloc(2 * dp->drv.p->ti.screenwidth
* dp->drv.p->ti.screenheight * sizeof(char));
if(dp->drv.p->screen == NULL)
return -1;
# if defined(SCREENUPDATE_IN_PC_H)
ScreenRetrieve(dp->drv.p->screen);
# else
/* FIXME */
# endif
dp->resize.allow = 1;
caca_set_canvas_size(dp->cv, dp->drv.p->ti.screenwidth,
dp->drv.p->ti.screenheight);
dp->resize.allow = 0;
return 0;
}
static int conio_end_graphics(caca_display_t *dp)
{
_wscroll = 1;
textcolor((enum COLORS)WHITE);
textbackground((enum COLORS)BLACK);
gotoxy(caca_get_canvas_width(dp->cv), caca_get_canvas_height(dp->cv));
cputs("\r\n");
_setcursortype(_NORMALCURSOR);
free(dp->drv.p->screen);
free(dp->drv.p);
return 0;
}
static int conio_set_display_title(caca_display_t *dp, char const *title)
{
return -1;
}
static int conio_get_display_width(caca_display_t const *dp)
{
/* Fallback to a 6x10 font */
return caca_get_canvas_width(dp->cv) * 6;
}
static int conio_get_display_height(caca_display_t const *dp)
{
/* Fallback to a 6x10 font */
return caca_get_canvas_height(dp->cv) * 10;
}
static void conio_display(caca_display_t *dp)
{
char *screen = dp->drv.p->screen;
uint32_t const *chars = caca_get_canvas_chars(dp->cv);
uint32_t const *attrs = caca_get_canvas_attrs(dp->cv);
int width = caca_get_canvas_width(dp->cv);
int height = caca_get_canvas_height(dp->cv);
int n;
for(n = height * width; n--; )
{
char ch = caca_utf32_to_cp437(*chars++);
if(n && *chars == CACA_MAGIC_FULLWIDTH)
{
*screen++ = '[';
*screen++ = caca_attr_to_ansi(*attrs++);
ch = ']';
chars++;
n--;
}
*screen++ = ch;
*screen++ = caca_attr_to_ansi(*attrs++);
}
# if defined(SCREENUPDATE_IN_PC_H)
ScreenUpdate(dp->drv.p->screen);
# else
/* FIXME */
# endif
}
static void conio_handle_resize(caca_display_t *dp)
{
/* We know nothing about our window */
dp->resize.w = caca_get_canvas_width(dp->cv);
dp->resize.h = caca_get_canvas_height(dp->cv);
}
static int conio_get_event(caca_display_t *dp, caca_privevent_t *ev)
{
uint8_t ch;
caca_privevent_t release;
if(!_conio_kbhit())
{
ev->type = CACA_EVENT_NONE;
return 0;
}
ch = getch();
ev->type = CACA_EVENT_KEY_PRESS;
ev->data.key.ch = ch;
ev->data.key.utf32 = ch;
ev->data.key.utf8[0] = ch;
ev->data.key.utf8[1] = '\0';
release = *ev;
release.type = CACA_EVENT_KEY_RELEASE;
_push_event(dp, &release);
return 1;
}
/*
* Driver initialisation
*/
int conio_install(caca_display_t *dp)
{
dp->drv.id = CACA_DRIVER_CONIO;
dp->drv.driver = "conio";
dp->drv.init_graphics = conio_init_graphics;
dp->drv.end_graphics = conio_end_graphics;
dp->drv.set_display_title = conio_set_display_title;
dp->drv.get_display_width = conio_get_display_width;
dp->drv.get_display_height = conio_get_display_height;
dp->drv.display = conio_display;
dp->drv.handle_resize = conio_handle_resize;
dp->drv.get_event = conio_get_event;
dp->drv.set_mouse = NULL;
dp->drv.set_cursor = NULL;
return 0;
}
#endif /* USE_CONIO */
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