/***************************************************************************** * * 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 * * $Id$ * ****************************************************************************/ #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 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); } }
