/*****************************************************************************
*
* XVID MPEG-4 VIDEO CODEC
* - Font rendering to frame buffer functions -
*
* Copyright(C) 2002-2003 Peter Ross
*
* This program is free software ; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation ; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program ; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: font.c,v 1.7 2005/11/22 10:23:01 suxen_drol Exp $
*
****************************************************************************/
#include
#include
#include "image.h"
#include "font.h"
#define FONT_WIDTH 4
#define FONT_HEIGHT 6
static const char ascii33[33][FONT_WIDTH*FONT_HEIGHT] = {
/* ! */
{0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,0,0,
0,0,1,0},
/* " */
{0,1,0,1,
0,1,0,1,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0},
/* # */
{0,1,1,0,
1,1,1,1,
0,1,1,0,
0,1,1,0,
1,1,1,1,
0,1,1,0},
/* $ */
{0,1,1,0,
1,0,1,1,
1,1,1,0,
0,1,1,1,
1,1,0,1,
0,1,1,0},
/* % */
{1,1,0,1,
1,0,0,1,
0,0,1,0,
0,1,0,0,
1,0,0,1,
1,0,1,1},
/* & */
{0,1,1,0,
1,0,0,0,
0,1,0,1,
1,0,1,0,
1,0,1,0,
0,1,0,1},
/* ' */
{0,0,1,0,
0,0,1,0,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0},
/* ( */
{0,0,1,0,
0,1,0,0,
0,1,0,0,
0,1,0,0,
0,1,0,0,
0,0,1,0},
/* ) */
{0,1,0,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,1,0,0},
/* * */
{0,0,0,0,
1,0,0,1,
0,1,1,0,
1,1,1,1,
0,1,1,0,
1,0,0,1},
/* + */
{0,0,0,0,
0,0,1,0,
0,0,1,0,
0,1,1,1,
0,0,1,0,
0,0,1,0},
/* , */
{0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,1,1,0,
0,0,1,0},
/* - */
{0,0,0,0,
0,0,0,0,
0,0,0,0,
1,1,1,1,
0,0,0,0,
0,0,0,0},
/* . */
{0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,1,1,0,
0,1,1,0},
/* / */
{0,0,0,1,
0,0,0,1,
0,0,1,0,
0,1,0,0,
1,0,0,0,
1,0,0,0},
/* 0 */
{0,1,1,0,
1,0,0,1,
1,0,1,1,
1,1,0,1,
1,0,0,1,
0,1,1,0},
/* 1 */
{0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0},
/* 2 */
{0,1,1,0,
1,0,0,1,
0,0,1,0,
0,1,0,0,
1,0,0,0,
1,1,1,1},
/* 3 */
{0,1,1,0,
1,0,0,1,
0,0,1,0,
0,0,0,1,
1,0,0,1,
0,1,1,0},
/* 4 */
{0,0,1,0,
0,1,1,0,
1,0,1,0,
1,1,1,1,
0,0,1,0,
0,0,1,0},
/* 5 */
{1,1,1,1,
1,0,0,0,
1,1,1,0,
0,0,0,1,
1,0,0,1,
0,1,1,0},
/* 6 */
{0,1,1,1,
1,0,0,0,
1,1,1,0,
1,0,0,1,
1,0,0,1,
0,1,1,0},
/* 7 */
{1,1,1,0,
0,0,0,1,
0,0,0,1,
0,0,1,0,
0,0,1,0,
0,0,1,0},
/* 8 */
{0,1,1,0,
1,0,0,1,
0,1,1,0,
1,0,0,1,
1,0,0,1,
0,1,1,0},
/* 9 */
{0,1,1,0,
1,0,0,1,
1,0,0,1,
0,1,1,1,
0,0,0,1,
1,1,1,0},
/* : */
{0,0,0,0,
0,0,0,0,
0,0,1,0,
0,0,0,0,
0,0,1,0,
0,0,0,0},
/* ; */
{0,0,0,0,
0,0,1,0,
0,0,0,0,
0,0,0,0,
0,1,1,0,
0,0,1,0},
/* < */
{0,0,0,1,
0,0,1,0,
0,1,0,0,
0,1,0,0,
0,0,1,0,
0,0,0,1},
/* = */
{0,0,0,0,
1,1,1,1,
0,0,0,0,
0,0,0,0,
1,1,1,1,
0,0,0,0},
/* > */
{0,1,0,0,
0,0,1,0,
0,0,0,1,
0,0,0,1,
0,0,1,0,
0,1,0,0},
/* ? */
{0,1,1,0,
1,0,0,1,
0,0,1,0,
0,0,1,0,
0,0,0,0,
0,0,1,0},
/* @ */
{0,1,1,0,
1,0,0,1,
1,0,1,1,
1,0,1,1,
1,0,0,0,
0,1,1,0},
};
static const char ascii65[26][FONT_WIDTH*FONT_HEIGHT] = {
/* A */
{0,1,1,0,
1,0,0,1,
1,0,0,1,
1,1,1,1,
1,0,0,1,
1,0,0,1},
/* B */
{1,1,1,0,
1,0,0,1,
1,1,1,0,
1,0,0,1,
1,0,0,1,
1,1,1,0},
/* C */
{0,1,1,0,
1,0,0,1,
1,0,0,0,
1,0,0,0,
1,0,0,1,
0,1,1,0},
/* D */
{1,1,0,0,
1,0,1,0,
1,0,0,1,
1,0,0,1,
1,0,1,0,
1,1,0,0},
/* E */
{1,1,1,1,
1,0,0,0,
1,1,1,0,
1,0,0,0,
1,0,0,0,
1,1,1,1},
/* F */
{1,1,1,1,
1,0,0,0,
1,1,1,0,
1,0,0,0,
1,0,0,0,
1,0,0,0},
/* G */
{0,1,1,1,
1,0,0,0,
1,0,1,1,
1,0,0,1,
1,0,0,1,
0,1,1,0},
/* H */
{1,0,0,1,
1,0,0,1,
1,1,1,1,
1,0,0,1,
1,0,0,1,
1,0,0,1},
/* I */
{0,1,1,1,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,1,1,1},
/* J */
{0,1,1,1,
0,0,1,0,
0,0,1,0,
0,0,1,0,
1,0,1,0,
0,1,0,0},
/* K */
{1,0,0,1,
1,0,0,1,
1,1,1,0,
1,0,0,1,
1,0,0,1,
1,0,0,1},
/* L */
{1,0,0,0,
1,0,0,0,
1,0,0,0,
1,0,0,0,
1,0,0,0,
1,1,1,1},
/* M */
{1,0,0,1,
1,1,1,1,
1,1,1,1,
1,0,0,1,
1,0,0,1,
1,0,0,1},
/* N */
{1,0,0,1,
1,1,0,1,
1,1,0,1,
1,0,1,1,
1,0,1,1,
1,0,0,1},
/* 0 */
{0,1,1,0,
1,0,0,1,
1,0,0,1,
1,0,0,1,
1,0,0,1,
0,1,1,0},
/* P */
{1,1,1,0,
1,0,0,1,
1,1,1,0,
1,0,0,0,
1,0,0,0,
1,0,0,0},
/* Q */
{0,1,1,0,
1,0,0,1,
1,0,0,1,
1,0,0,1,
1,0,1,0,
0,1,0,1},
/* R */
{1,1,1,0,
1,0,0,1,
1,1,1,0,
1,0,0,1,
1,0,0,1,
1,0,0,1},
/* S */
{0,1,1,0,
1,0,0,1,
0,1,0,0,
0,0,1,0,
1,0,0,1,
0,1,1,0},
/* T */
{0,1,1,1,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0},
/* U */
{1,0,0,1,
1,0,0,1,
1,0,0,1,
1,0,0,1,
1,0,0,1,
1,1,1,1},
/* V */
{1,0,0,1,
1,0,0,1,
1,0,0,1,
0,1,1,0,
0,1,1,0,
0,1,1,0},
/* W */
{1,0,0,1,
1,0,0,1,
1,0,0,1,
1,1,1,1,
1,1,1,1,
1,0,0,1},
/* X */
{1,0,0,1,
1,0,0,1,
0,1,1,0,
1,0,0,1,
1,0,0,1,
1,0,0,1},
/* Y */
{1,0,0,1,
1,0,0,1,
0,1,0,0,
0,0,1,0,
0,1,0,0,
1,0,0,0},
/* Z */
{1,1,1,1,
0,0,0,1,
0,0,1,0,
0,1,0,0,
1,0,0,0,
1,1,1,1},
};
static const char ascii91[6][FONT_WIDTH*FONT_HEIGHT] = {
/* [ */
{0,1,1,0,
0,1,0,0,
0,1,0,0,
0,1,0,0,
0,1,0,0,
0,1,1,0},
/* '\' */
{1,0,0,0,
1,0,0,0,
0,1,0,0,
0,0,1,0,
0,0,0,1,
0,0,0,1},
/* ] */
{0,1,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,0,1,0,
0,1,1,0},
/* ^ */
{0,1,0,1,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0},
/* _ */
{0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0,
1,1,1,1},
/* ` */
{0,1,0,0,
0,0,1,0,
0,0,0,0,
0,0,0,0,
0,0,0,0,
0,0,0,0}
};
#define FONT_ZOOM 4
static void
draw_num(IMAGE * img, const int stride, const int height,
const char * font, const int x, const int y)
{
int i, j;
for (j = 0; j < FONT_ZOOM * FONT_HEIGHT && y+j < height; j++)
for (i = 0; i < FONT_ZOOM * FONT_WIDTH && x+i < stride; i++)
if (font[(j/FONT_ZOOM)*FONT_WIDTH + (i/FONT_ZOOM)])
{
int offset = (y+j)*stride + (x+i);
int offset2 =((y+j)/2)*(stride/2) + ((x+i)/2);
img->y[offset] = 255;
img->u[offset2] = 127;
img->v[offset2] = 127;
}
}
#define FONT_BUF_SZ 1024
void image_printf(IMAGE * img, int edged_width, int height,
int x, int y, char *fmt, ...)
{
va_list args;
char buf[FONT_BUF_SZ];
int i;
va_start(args, fmt);
vsprintf(buf, fmt, args);
va_end(args);
for (i = 0; i < buf[i]; i++) {
const char * font;
if (buf[i] >= '!' && buf[i] font = ascii33[buf[i]-'!'];
else if (buf[i] >= 'A' && buf[i] font = ascii65[buf[i]-'A'];
else if (buf[i] >= '[' && buf[i] font = ascii91[buf[i]-'['];
else if (buf[i] >= 'a' && buf[i] font = ascii65[buf[i]-'a'];
else
continue;
draw_num(img, edged_width, height, font, x + i*FONT_ZOOM*(FONT_WIDTH+1), y);
}
}
