osdep/getch2-win.c

   1 /* windows TermIO for MPlayer          (C) 2003 Sascha Sommer */
   2
   3 // See  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/VirtualKeyCodes.asp
   4 // for additional virtual keycodes
   5
   6
   7 #include "config.h"
   8 #include <stdio.h>
   9 #include <windows.h>
  10 #include "keycodes.h"
  11 #include "input/input.h"
  12 #include "mp_fifo.h"
  13 // HACK, stdin is used as something else below
  14 #undef stdin
  15
  16 int mp_input_win32_slave_cmd_func(int fd,char* dest,int size){
  17   DWORD retval;
  18   HANDLE stdin = GetStdHandle(STD_INPUT_HANDLE);
  19   if(!PeekNamedPipe(stdin, NULL, size, &retval, NULL, NULL) || !retval){
  20           return MP_INPUT_NOTHING;
  21   }
  22   if(retval>size)retval=size;
  23   ReadFile(stdin, dest, retval, &retval, NULL);
  24   if(retval)return retval;
  25   return MP_INPUT_NOTHING;
  26 }
  27
  28 int screen_width=80;
  29 int screen_height=24;
  30 char * erase_to_end_of_line = NULL;
  31
  32 void get_screen_size(){
  33 }
  34
  35 static HANDLE stdin;
  36 static int getch2_status=0;
  37
  38 static int getch2_internal(void)
  39 {
  40         INPUT_RECORD eventbuffer[128];
  41     DWORD retval;
  42         int i=0;
  43     if(!getch2_status)return -1;
  44     /*check if there are input events*/
  45         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
  46         {
  47                 printf("getch2: can't get number of input events: %i\n",GetLastError());
  48                 return -1;
  49         }
  50     if(retval<=0)return -1;
  51
  52         /*read all events*/
  53         if(!ReadConsoleInput(stdin,eventbuffer,128,&retval))
  54         {
  55                 printf("getch: can't read input events\n");
  56                 return -1;
  57         }
  58
  59         /*filter out keyevents*/
  60     for (i = 0; i < retval; i++)
  61     {
  62                 switch(eventbuffer[i].EventType)
  63                 {
  64                         case KEY_EVENT:
  65                                 /*only a pressed key is interresting for us*/
  66                                 if(eventbuffer[i].Event.KeyEvent.bKeyDown == TRUE)
  67                                 {
  68                                         /*check for special keys*/
  69                                         switch(eventbuffer[i].Event.KeyEvent.wVirtualKeyCode)
  70                                         {
  71                                         case VK_HOME:
  72                                                 return KEY_HOME;
  73                                         case VK_END:
  74                                                 return KEY_END;
  75                                         case VK_DELETE:
  76                                                 return KEY_DEL;
  77                     case VK_INSERT:
  78                                                 return KEY_INS;
  79                                         case VK_BACK:
  80                                                 return KEY_BS;
  81                                         case VK_PRIOR:
  82                                                 return KEY_PGUP;
  83                                         case VK_NEXT:
  84                                                 return KEY_PGDWN;
  85                                         case VK_RETURN:
  86                                                 return KEY_ENTER;
  87                                         case VK_ESCAPE:
  88                                                 return KEY_ESC;
  89                                         case VK_LEFT:
  90                                                 return KEY_LEFT;
  91                                         case VK_UP:
  92                                                 return KEY_UP;
  93                                         case VK_RIGHT:
  94                                                 return KEY_RIGHT;
  95                                         case VK_DOWN:
  96                                                 return KEY_DOWN;
  97                     case VK_SHIFT:
  98                         continue;
  99                                         }
 100                                         /*check for function keys*/
 101                                 if(0x87 >= eventbuffer[i].Event.KeyEvent.wVirtualKeyCode && eventbuffer[i].Event.KeyEvent.wVirtualKeyCode >= 0x70)
 102                                                 return (KEY_F + 1 + eventbuffer[i].Event.KeyEvent.wVirtualKeyCode - 0x70);
 103
 104                                         /*only characters should be remaining*/
 105                                         //printf("getch2: YOU PRESSED \"%c\" \n",eventbuffer[i].Event.KeyEvent.uChar.AsciiChar);
 106                                     return eventbuffer[i].Event.KeyEvent.uChar.AsciiChar;
 107                                 }
 108                                 break;
 109
 110                         case MOUSE_EVENT:
 111             case WINDOW_BUFFER_SIZE_EVENT:
 112             case FOCUS_EVENT:
 113             case MENU_EVENT:
 114             default:
 115                                 //printf("getch2: unsupported event type");
 116                             break;
 117         }
 118     }
 119         return -1;
 120 }
 121
 122 void getch2(void)
 123 {
 124     int r = getch2_internal();
 125     if (r >= 0)
 126         mplayer_put_key(r);
 127 }
 128
 129 void getch2_enable(){
 130         DWORD retval;
 131     stdin = GetStdHandle(STD_INPUT_HANDLE);
 132         if(!GetNumberOfConsoleInputEvents(stdin,&retval))
 133         {
 134                 printf("getch2: %i can't get number of input events  [disabling console input]\n",GetLastError());
 135                 getch2_status = 0;
 136         }
 137     else getch2_status=1;
 138 }
 139
 140 void getch2_disable(){
 141     if(!getch2_status) return; // already disabled / never enabled
 142     getch2_status=0;
 143 }
 144
 145 #ifdef USE_ICONV
 146 static const struct {
 147     unsigned cp;
 148     char* alias;
 149 } cp_alias[] = {
 150     { 20127, "ASCII" },
 151     { 20866, "KOI8-R" },
 152     { 21866, "KOI8-RU" },
 153     { 28591, "ISO-8859-1" },
 154     { 28592, "ISO-8859-2" },
 155     { 28593, "ISO-8859-3" },
 156     { 28594, "ISO-8859-4" },
 157     { 28595, "ISO-8859-5" },
 158     { 28596, "ISO-8859-6" },
 159     { 28597, "ISO-8859-7" },
 160     { 28598, "ISO-8859-8" },
 161     { 28599, "ISO-8859-9" },
 162     { 28605, "ISO-8859-15" },
 163     { 65001, "UTF-8" },
 164     { 0, NULL }
 165 };
 166
 167 char* get_term_charset(void)
 168 {
 169     static char codepage[10];
 170     unsigned i, cpno = GetConsoleOutputCP();
 171     if (!cpno)
 172         cpno = GetACP();
 173     if (!cpno)
 174         return NULL;
 175
 176     for (i = 0; cp_alias[i].cp; i++)
 177         if (cpno == cp_alias[i].cp)
 178             return cp_alias[i].alias;
 179
 180     snprintf(codepage, sizeof(codepage), "CP%u", cpno);
 181     return codepage;
 182 }
 183 #endif