conproc.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (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.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // conproc.c
  21
  22 #include <windows.h>
  23 #include <wchar.h>
  24 #include "conproc.h"
  25 #include "quakedef.h"
  26
  27 HANDLE  heventDone;
  28 HANDLE  hfileBuffer;
  29 HANDLE  heventChildSend;
  30 HANDLE  heventParentSend;
  31 HANDLE  hStdout;
  32 HANDLE  hStdin;
  33
  34 DWORD RequestProc (DWORD dwNichts);
  35 LPVOID GetMappedBuffer (HANDLE hfileBuffer);
  36 void ReleaseMappedBuffer (LPVOID pBuffer);
  37 BOOL GetScreenBufferLines (int *piLines);
  38 BOOL SetScreenBufferLines (int iLines);
  39 BOOL ReadText (LPTSTR pszText, int iBeginLine, int iEndLine);
  40 BOOL WriteText (LPCTSTR szText);
  41 int CharToCode (char c);
  42 BOOL SetConsoleCXCY(HANDLE hStdout, int cx, int cy);
  43
  44
  45 void InitConProc (HANDLE hFile, HANDLE heventParent, HANDLE heventChild)
  46 {
  47         DWORD   dwID;
  48
  49 // ignore if we don't have all the events.
  50         if (!hFile || !heventParent || !heventChild)
  51                 return;
  52
  53         hfileBuffer = hFile;
  54         heventParentSend = heventParent;
  55         heventChildSend = heventChild;
  56
  57 // so we'll know when to go away.
  58         heventDone = CreateEvent (NULL, false, false, NULL);
  59
  60         if (!heventDone)
  61         {
  62                 Con_SafePrintf ("Couldn't create heventDone\n");
  63                 return;
  64         }
  65
  66         if (!CreateThread (NULL,
  67                                            0,
  68                                            (LPTHREAD_START_ROUTINE) RequestProc,
  69                                            0,
  70                                            0,
  71                                            &dwID))
  72         {
  73                 CloseHandle (heventDone);
  74                 Con_SafePrintf ("Couldn't create QHOST thread\n");
  75                 return;
  76         }
  77
  78 // save off the input/output handles.
  79         hStdout = GetStdHandle (STD_OUTPUT_HANDLE);
  80         hStdin = GetStdHandle (STD_INPUT_HANDLE);
  81
  82 // force 80 character width, at least 25 character height
  83         SetConsoleCXCY (hStdout, 80, 25);
  84 }
  85
  86
  87 void DeinitConProc (void)
  88 {
  89         if (heventDone)
  90                 SetEvent (heventDone);
  91 }
  92
  93
  94 DWORD RequestProc (DWORD dwNichts)
  95 {
  96         int             *pBuffer;
  97         DWORD   dwRet;
  98         HANDLE  heventWait[2];
  99         int             iBeginLine, iEndLine;
 100
 101         heventWait[0] = heventParentSend;
 102         heventWait[1] = heventDone;
 103
 104         while (1)
 105         {
 106                 dwRet = WaitForMultipleObjects (2, heventWait, false, INFINITE);
 107
 108         // heventDone fired, so we're exiting.
 109                 if (dwRet == WAIT_OBJECT_0 + 1)
 110                         break;
 111
 112                 pBuffer = (int *) GetMappedBuffer (hfileBuffer);
 113
 114         // hfileBuffer is invalid.  Just leave.
 115                 if (!pBuffer)
 116                 {
 117                         Con_SafePrintf ("Invalid hfileBuffer\n");
 118                         break;
 119                 }
 120
 121                 switch (pBuffer[0])
 122                 {
 123                         case CCOM_WRITE_TEXT:
 124                         // Param1 : Text
 125                                 pBuffer[0] = WriteText ((LPCTSTR) (pBuffer + 1));
 126                                 break;
 127
 128                         case CCOM_GET_TEXT:
 129                         // Param1 : Begin line
 130                         // Param2 : End line
 131                                 iBeginLine = pBuffer[1];
 132                                 iEndLine = pBuffer[2];
 133                                 pBuffer[0] = ReadText ((LPTSTR) (pBuffer + 1), iBeginLine,
 134                                                                            iEndLine);
 135                                 break;
 136
 137                         case CCOM_GET_SCR_LINES:
 138                         // No params
 139                                 pBuffer[0] = GetScreenBufferLines (&pBuffer[1]);
 140                                 break;
 141
 142                         case CCOM_SET_SCR_LINES:
 143                         // Param1 : Number of lines
 144                                 pBuffer[0] = SetScreenBufferLines (pBuffer[1]);
 145                                 break;
 146                 }
 147
 148                 ReleaseMappedBuffer (pBuffer);
 149                 SetEvent (heventChildSend);
 150         }
 151
 152         return 0;
 153 }
 154
 155
 156 LPVOID GetMappedBuffer (HANDLE hfileBuffer)
 157 {
 158         LPVOID pBuffer;
 159
 160         pBuffer = MapViewOfFile (hfileBuffer,
 161                                                         FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, 0);
 162
 163         return pBuffer;
 164 }
 165
 166
 167 void ReleaseMappedBuffer (LPVOID pBuffer)
 168 {
 169         UnmapViewOfFile (pBuffer);
 170 }
 171
 172
 173 BOOL GetScreenBufferLines (int *piLines)
 174 {
 175         CONSOLE_SCREEN_BUFFER_INFO      info;
 176         BOOL                                            bRet;
 177
 178         bRet = GetConsoleScreenBufferInfo (hStdout, &info);
 179
 180         if (bRet)
 181                 *piLines = info.dwSize.Y;
 182
 183         return bRet;
 184 }
 185
 186
 187 BOOL SetScreenBufferLines (int iLines)
 188 {
 189
 190         return SetConsoleCXCY (hStdout, 80, iLines);
 191 }
 192
 193
 194 BOOL ReadText (LPTSTR pszText, int iBeginLine, int iEndLine)
 195 {
 196         COORD   coord;
 197         DWORD   dwRead;
 198         BOOL    bRet;
 199
 200         coord.X = 0;
 201         coord.Y = iBeginLine;
 202
 203         bRet = ReadConsoleOutputCharacter(
 204                 hStdout,
 205                 pszText,
 206                 80 * (iEndLine - iBeginLine + 1),
 207                 coord,
 208                 &dwRead);
 209
 210         // Make sure it's null terminated.
 211         if (bRet)
 212                 pszText[dwRead] = '\0';
 213
 214         return bRet;
 215 }
 216
 217
 218 BOOL WriteText (LPCTSTR szText)
 219 {
 220         DWORD                   dwWritten;
 221         INPUT_RECORD    rec;
 222         char                    upper, *sz;
 223
 224         sz = (LPTSTR) szText;
 225
 226         while (*sz)
 227         {
 228         // 13 is the code for a carriage return (\n) instead of 10.
 229                 if (*sz == 10)
 230                         *sz = 13;
 231
 232                 upper = toupper(*sz);
 233
 234                 rec.EventType = KEY_EVENT;
 235                 rec.Event.KeyEvent.bKeyDown = true;
 236                 rec.Event.KeyEvent.wRepeatCount = 1;
 237                 rec.Event.KeyEvent.wVirtualKeyCode = upper;
 238                 rec.Event.KeyEvent.wVirtualScanCode = CharToCode (*sz);
 239                 rec.Event.KeyEvent.uChar.AsciiChar = *sz;
 240                 rec.Event.KeyEvent.uChar.UnicodeChar = *sz;
 241                 rec.Event.KeyEvent.dwControlKeyState = isupper(*sz) ? 0x80 : 0x0;
 242
 243                 WriteConsoleInput(
 244                         hStdin,
 245                         &rec,
 246                         1,
 247                         &dwWritten);
 248
 249                 rec.Event.KeyEvent.bKeyDown = false;
 250
 251                 WriteConsoleInput(
 252                         hStdin,
 253                         &rec,
 254                         1,
 255                         &dwWritten);
 256
 257                 sz++;
 258         }
 259
 260         return true;
 261 }
 262
 263
 264 int CharToCode (char c)
 265 {
 266         char upper;
 267
 268         upper = toupper(c);
 269
 270         switch (c)
 271         {
 272                 case 13:
 273                         return 28;
 274
 275                 default:
 276                         break;
 277         }
 278
 279         if (isalpha(c))
 280                 return (30 + upper - 65);
 281
 282         if (isdigit(c))
 283                 return (1 + upper - 47);
 284
 285         return c;
 286 }
 287
 288
 289 BOOL SetConsoleCXCY(HANDLE hStdout, int cx, int cy)
 290 {
 291         CONSOLE_SCREEN_BUFFER_INFO      info;
 292         COORD                                           coordMax;
 293
 294         coordMax = GetLargestConsoleWindowSize(hStdout);
 295
 296         if (cy > coordMax.Y)
 297                 cy = coordMax.Y;
 298
 299         if (cx > coordMax.X)
 300                 cx = coordMax.X;
 301
 302         if (!GetConsoleScreenBufferInfo(hStdout, &info))
 303                 return false;
 304
 305 // height
 306     info.srWindow.Left = 0;
 307     info.srWindow.Right = info.dwSize.X - 1;
 308     info.srWindow.Top = 0;
 309     info.srWindow.Bottom = cy - 1;
 310
 311         if (cy < info.dwSize.Y)
 312         {
 313                 if (!SetConsoleWindowInfo(hStdout, true, &info.srWindow))
 314                         return false;
 315
 316                 info.dwSize.Y = cy;
 317
 318                 if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
 319                         return false;
 320     }
 321     else if (cy > info.dwSize.Y)
 322     {
 323                 info.dwSize.Y = cy;
 324
 325                 if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
 326                         return false;
 327
 328                 if (!SetConsoleWindowInfo(hStdout, true, &info.srWindow))
 329                         return false;
 330     }
 331
 332         if (!GetConsoleScreenBufferInfo(hStdout, &info))
 333                 return false;
 334
 335 // width
 336         info.srWindow.Left = 0;
 337         info.srWindow.Right = cx - 1;
 338         info.srWindow.Top = 0;
 339         info.srWindow.Bottom = info.dwSize.Y - 1;
 340
 341         if (cx < info.dwSize.X)
 342         {
 343                 if (!SetConsoleWindowInfo(hStdout, true, &info.srWindow))
 344                         return false;
 345
 346                 info.dwSize.X = cx;
 347
 348                 if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
 349                         return false;
 350         }
 351         else if (cx > info.dwSize.X)
 352         {
 353                 info.dwSize.X = cx;
 354
 355                 if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
 356                         return false;
 357
 358                 if (!SetConsoleWindowInfo(hStdout, true, &info.srWindow))
 359                         return false;
 360         }
 361
 362         return true;
 363 }
 364