core.c

   1 /*
   2  *  (C) Copyright 2009 ZeXx86 (zexx86@gmail.com)
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation; either version 2 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program; if not, write to the Free Software
  16  *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  *   Based on GLugin http://exa.czweb.org/repos/glugin.tar.bz2
  19  *   Big thanks for "exa"
  20  */
  21
  22
  23 #include "glugin.h"
  24 #include <GL/gl.h>
  25 #include <GL/glu.h>
  26 #include <unistd.h>
  27 #include <math.h>
  28
  29 void guest_read_host_requests (pluginData *pd)
  30 {
  31         int cmd;
  32         NPStream *s;
  33
  34         if (fread (&cmd, sizeof (int), 1, pd->pr) <= 0)
  35                 return; //no data
  36
  37         switch (cmd) {
  38                 case gln_new_stream:
  39                         fread (&s, sizeof (s), 1, pd->pr);
  40
  41                         pd->handle_newstream (pd,s);
  42                         break;
  43                 case gln_destroy_stream:
  44                         fread (&s, sizeof (s), 1, pd->pr);
  45
  46                         pd->handle_destroystream (pd, s);
  47                         break;
  48                 case gln_stream_data:
  49                         {
  50                                 int32 off, len;
  51                                 void *data;
  52
  53                                 fread (&s, sizeof (s), 1, pd->pr);
  54                                 fread (&off, sizeof (off), 1, pd->pr);
  55                                 fread (&len, sizeof (len), 1, pd->pr);
  56
  57                                 if (len > 0) {
  58                                         data = malloc (len);
  59
  60                                         fread (data,len,1,pd->pr);
  61
  62                                         pd->handle_write (pd, s, off, len, data);
  63
  64                                         free (data);
  65                                 } else
  66                                         Log ("w: zero len!");
  67                         }
  68                         break;
  69                 default:
  70                         Log ("Unhandled request to guest: %d", cmd);
  71         }
  72 }
  73
  74 void guest_newstream (pluginData *pd, NPStream *s)
  75 {
  76         Log ("guest has NEWSTREAM: %p",s);
  77 }
  78
  79 void guest_destroystream (pluginData *pd, NPStream *s)
  80 {
  81         Log ("guest has DESTROYSTREAM: %p",s);
  82 }
  83
  84 void guest_write (pluginData *pd, NPStream*s, int32 off, int32 len, void *data)
  85 {
  86         Log ("guest has WRITE: %p %d %d, data followz:", s, off, len);
  87
  88         int i;
  89         for (i = 0; i < len; ++ i)
  90                 Log ("%8X: %c",i, ((char *) data)[i]);
  91 }
  92
  93 void glugin_proc (pluginData *pd)
  94 {
  95         while (!(pd->exit_request)) {
  96                 guest_read_host_requests (pd);
  97
  98                 usleep (1000);
  99         }
 100
 101         pd->exit_ack = 1;
 102 }