/*****************************************************************************
*
* XVID MPEG-4 VIDEO CODEC
* - Font rendering to frame buffer functions -
*
* Copyright(C) 2002-2003 Peter Ross <pross@xvid.org>
*
* 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.cpp,v 1.1.1.1 2005-07-13 14:36:13 jeanlf Exp $
*
****************************************************************************/
#include "image.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 2
void IMAGE::draw_num(const int stride, const int height, const char * font, const int x, const int y) {
for(int j = 0; j < FONT_ZOOM * FONT_HEIGHT && y+j < height; j++) {
for(int 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);
IMAGE::y[offset] = 255;
IMAGE::u[offset2] = 127;
IMAGE::v[offset2] = 127;
}
}
}
}
//----------------------------
void IMAGE::Print(int edged_width, int height, int x, int y, const char *buf) {
int i;
for(i = 0; buf[i]; i++) {
const char * font;
if (buf[i] >= '!' && buf[i] <= '@')
font = ascii33[buf[i]-'!'];
else if (buf[i] >= 'A' && buf[i] <= 'Z')
font = ascii65[buf[i]-'A'];
else if (buf[i] >= '[' && buf[i] <= '`')
font = ascii91[buf[i]-'['];
else if (buf[i] >= 'a' && buf[i] <= 'z')
font = ascii65[buf[i]-'a'];
else
continue;
draw_num(edged_width, height, font, x + i*FONT_ZOOM*(FONT_WIDTH+1), y);
}
}