misc/fbtruetype/fbtruetype.c

   1 /*
   2  *      fbmngplay - fb console MNG player.
   3  *      (c) 2001-2002 by Stefan Reinauer, <stepan@suse.de>
   4  *
   5  *      This program is based on mngplay, written and (C) by
   6  *      Ralph Giles <giles@ashlu.bc.ca>
   7  *
   8  *      This program my be redistributed under the terms of the
   9  *      GNU General Public Licence, version 2, or at your preference,
  10  *      any later version.
  11  */
  12
  13 #include <stdlib.h>
  14 #include <stdio.h>
  15 #include <string.h>
  16 #include <unistd.h>
  17 #include <fcntl.h>
  18 #include <getopt.h>
  19 #include <sys/mman.h>
  20 #include <sys/ioctl.h>
  21 #include <linux/fb.h>
  22 #include <signal.h>
  23
  24
  25 #include "fbtruetype.h"
  26 #include "messages.h"
  27 #include "console.h"
  28
  29 volatile int run = 1;
  30 int verbose = 0;
  31 int buffered = 0;
  32 int waitsignal = 0;
  33 int delta = 16;
  34 int sconly=0;
  35
  36 unsigned int fbbytes, fbx, fby;
  37 unsigned int fbypos=100, fbxpos=100;
  38 unsigned int fblinelen, alpha=100;
  39 unsigned char *framebuffer, *font=DEFAULT_FONTNAME;
  40 unsigned int fgcolor=0xff0000;
  41 unsigned int fontsize=36;
  42 int strict_font=0;
  43 int rendertext(char *text, char *fontname, unsigned int size, unsigned int forecol);
  44
  45 int main(int argc, char *argv[])
  46 {
  47         int fbdev,c,option_index;
  48         unsigned int alpha;
  49         struct fb_var_screeninfo var;
  50         struct fb_fix_screeninfo fix;
  51
  52         /* Check which console we're running on */
  53         init_consoles();
  54
  55         alpha = 100;
  56         while (1) {
  57                 static struct option long_options[] = {
  58                         {"help", 0, 0, 'h'},
  59                         {"verbose", 0, 0, 'v'},
  60                         {"alpha", 1, 0, 'a'},
  61                         {"version", 0, 0, 'V'},
  62                         {"start-console",0,0,'S'},
  63                         {"size",1,0,'s'},
  64                         {"console",1,0,'c'},
  65                         {"font",1,0,'f'},
  66                         {"textcolor",1,0,'t'},
  67                         {0, 0, 0, 0}
  68                 };
  69
  70                 c = getopt_long(argc, argv, "a:x:y:h?vVSc:f:t:s:",
  71                                 long_options, &option_index);
  72
  73                 if (c == -1)
  74                         break;
  75
  76                 switch (c) {
  77                 case 'a':
  78                         alpha = atoi(optarg);
  79                         if (alpha > 100)
  80                                 alpha = 100;
  81                         break;
  82                 case 'x':
  83                         fbxpos = atoi(optarg);
  84                         break;
  85                 case 'y':
  86                         fbypos = atoi(optarg);
  87                         break;
  88                 case '?':
  89                 case 'h':
  90                         usage(argv[0]);
  91                         exit(0);
  92                 case 'v':
  93                         verbose = 1;
  94                         break;
  95                 case 'V':
  96                         version();
  97                         exit(0);
  98                 case 'c':
  99                         start_console=atoi(optarg)-1;
 100                 case 'S':
 101                         sconly=1;
 102                         break;
 103                 case 'f':
 104                         strict_font=1;
 105                         font=strdup(optarg);
 106                         break;
 107                 case 't':
 108                         fgcolor=strtol(optarg, NULL, 16);
 109                         break;
 110                 case 's':
 111                         fontsize=strtol(optarg, NULL, 10);
 112                         break;
 113
 114                 default:
 115                         break;
 116                 }
 117         }
 118         if (optind >= argc) {
 119                 printf("No text\n");
 120                 exit(0);
 121         }
 122
 123         /* Initialize framebuffer */
 124         fbdev = open("/dev/fb/0", O_RDWR);
 125         if (fbdev < 0) {
 126                 fbdev = open("/dev/fb0", O_RDWR);
 127                 if (fbdev < 0) {
 128                         fprintf(stderr, "error while opening framebuffer.\n");
 129                         exit(fbdev);
 130                 }
 131         }
 132
 133         ioctl(fbdev, FBIOGET_VSCREENINFO, &var);
 134         fbbytes = var.bits_per_pixel>>3;
 135         fbx=var.xres;
 136         fby=var.yres;
 137         ioctl(fbdev, FBIOGET_FSCREENINFO, &fix);
 138         fblinelen = fix.line_length;
 139
 140         framebuffer = mmap(NULL,  fblinelen* fby ,
 141                  PROT_WRITE | PROT_READ, MAP_SHARED, fbdev, var.yoffset * fblinelen);
 142
 143         rendertext (argv[optind], font, fontsize, fgcolor);
 144         return 0;
 145 }