osdep/getch2-win.c

   1 /* Windows TermIO
   2  *
   3  * copyright (C) 2003 Sascha Sommer
   4  *
   5  * This file is part of MPlayer.
   6  *
   7  * MPlayer is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * MPlayer is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 // See  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/VirtualKeyCodes.asp
  23 // for additional virtual keycodes
  24
  25
  26 #include "config.h"
  27 #include <stdio.h>
  28 #include <windows.h>
  29 #include "keycodes.h"
  30 #include "input/input.h"
  31 #include "mp_fifo.h"
  32 // HACK, stdin is used as something else below
  33 #undef stdin
  34
  35 int mp_input_slave_cmd_func(int fd,char* dest,int size){
  36   DWORD retval;
  37   HANDLE stdin = GetStdHandle(STD_INPUT_HANDLE);
  38   if(!PeekNamedPipe(stdin, NULL, size, &retval, NULL, NULL) || !retval){
  39           return MP_INPUT_NOTHING;
  40   }
  41   if(retval>size)retval=size;
  42   ReadFile(stdin, dest, retval, &retval, NULL);
  43   if(retval)return retval;
  44   return MP_INPUT_NOTHING;
  45 }
  46
  47 int screen_width=80;
  48 int screen_height=24;
  49 char * erase_to_end_of_line = NULL;
  50
  51 void get_screen_size(void){
  52 }
  53
  54 static HANDLE stdin;
  55 static int getch2_status=0;
  56
  57 static int getch2_internal(void)
  58 {
  59         INPUT_RECORD eventbuffer[128];
  60     DWORD retval;
  61         int i=0;
  62     if(!getch2_status)return -1;
  63     /*check if there are input events*/
  64         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
  65         {
  66                 printf("getch2: can't get number of input events: %i\n",GetLastError());
  67                 return -1;
  68         }
  69     if(retval<=0)return -1;
  70
  71         /*read all events*/
  72         if(!ReadConsoleInput(stdin,eventbuffer,128,&retval))
  73         {
  74                 printf("getch: can't read input events\n");
  75                 return -1;
  76         }
  77
  78         /*filter out keyevents*/
  79     for (i = 0; i < retval; i++)
  80     {
  81                 switch(eventbuffer[i].EventType)
  82                 {
  83                         case KEY_EVENT:
  84                                 /*only a pressed key is interresting for us*/
  85                                 if(eventbuffer[i].Event.KeyEvent.bKeyDown == TRUE)
  86                                 {
  87                                         /*check for special keys*/
  88                                         switch(eventbuffer[i].Event.KeyEvent.wVirtualKeyCode)
  89                                         {
  90                                         case VK_HOME:
  91                                                 return KEY_HOME;
  92                                         case VK_END:
  93                                                 return KEY_END;
  94                                         case VK_DELETE:
  95                                                 return KEY_DEL;
  96                     case VK_INSERT:
  97                                                 return KEY_INS;
  98                                         case VK_BACK:
  99                                                 return KEY_BS;
 100                                         case VK_PRIOR:
 101                                                 return KEY_PGUP;
 102                                         case VK_NEXT:
 103                                                 return KEY_PGDWN;
 104                                         case VK_RETURN:
 105                                                 return KEY_ENTER;
 106                                         case VK_ESCAPE:
 107                                                 return KEY_ESC;
 108                                         case VK_LEFT:
 109                                                 return KEY_LEFT;
 110                                         case VK_UP:
 111                                                 return KEY_UP;
 112                                         case VK_RIGHT:
 113                                                 return KEY_RIGHT;
 114                                         case VK_DOWN:
 115                                                 return KEY_DOWN;
 116                     case VK_SHIFT:
 117                         continue;
 118                                         }
 119                                         /*check for function keys*/
 120                                 if(0x87 >= eventbuffer[i].Event.KeyEvent.wVirtualKeyCode && eventbuffer[i].Event.KeyEvent.wVirtualKeyCode >= 0x70)
 121                                                 return KEY_F + 1 + eventbuffer[i].Event.KeyEvent.wVirtualKeyCode - 0x70;
 122
 123                                         /*only characters should be remaining*/
 124                                         //printf("getch2: YOU PRESSED \"%c\" \n",eventbuffer[i].Event.KeyEvent.uChar.AsciiChar);
 125                                     return eventbuffer[i].Event.KeyEvent.uChar.AsciiChar;
 126                                 }
 127                                 break;
 128
 129                         case MOUSE_EVENT:
 130             case WINDOW_BUFFER_SIZE_EVENT:
 131             case FOCUS_EVENT:
 132             case MENU_EVENT:
 133             default:
 134                                 //printf("getch2: unsupported event type");
 135                             break;
 136         }
 137     }
 138         return -1;
 139 }
 140
 141 void getch2(void)
 142 {
 143     int r = getch2_internal();
 144     if (r >= 0)
 145         mplayer_put_key(r);
 146 }
 147
 148 void getch2_enable(void)
 149 {
 150         DWORD retval;
 151     stdin = GetStdHandle(STD_INPUT_HANDLE);
 152         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
 153         {
 154                 printf("getch2: %i can't get number of input events  [disabling console input]\n",GetLastError());
 155                 getch2_status = 0;
 156         }
 157     else getch2_status=1;
 158 }
 159
 160 void getch2_disable(void)
 161 {
 162     if(!getch2_status) return; // already disabled / never enabled
 163     getch2_status=0;
 164 }
 165
 166 #ifdef CONFIG_ICONV
 167 static const struct {
 168     unsigned cp;
 169     char* alias;
 170 } cp_alias[] = {
 171     { 20127, "ASCII" },
 172     { 20866, "KOI8-R" },
 173     { 21866, "KOI8-RU" },
 174     { 28591, "ISO-8859-1" },
 175     { 28592, "ISO-8859-2" },
 176     { 28593, "ISO-8859-3" },
 177     { 28594, "ISO-8859-4" },
 178     { 28595, "ISO-8859-5" },
 179     { 28596, "ISO-8859-6" },
 180     { 28597, "ISO-8859-7" },
 181     { 28598, "ISO-8859-8" },
 182     { 28599, "ISO-8859-9" },
 183     { 28605, "ISO-8859-15" },
 184     { 65001, "UTF-8" },
 185     { 0, NULL }
 186 };
 187
 188 char* get_term_charset(void)
 189 {
 190     static char codepage[10];
 191     unsigned i, cpno = GetConsoleOutputCP();
 192     if (!cpno)
 193         cpno = GetACP();
 194     if (!cpno)
 195         return NULL;
 196
 197     for (i = 0; cp_alias[i].cp; i++)
 198         if (cpno == cp_alias[i].cp)
 199             return cp_alias[i].alias;
 200
 201     snprintf(codepage, sizeof(codepage), "CP%u", cpno);
 202     return codepage;
 203 }
 204 #endif