429 lines
7.4 KiB
C++
429 lines
7.4 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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#ifdef _WIN32
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// conproc.c -- support for qhost
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#include <stdio.h>
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#include <process.h>
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#include <windows.h>
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#include "conproc.h"
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#include "isys.h"
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#include "tier0/icommandline.h"
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#include "tier1/strtools.h"
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static HANDLE heventDone;
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static HANDLE hfileBuffer;
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static HANDLE heventChildSend;
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static HANDLE heventParentSend;
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static HANDLE hStdout;
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static HANDLE hStdin;
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/*
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==============
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SetConsoleCXCY
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==============
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*/
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BOOL SetConsoleCXCY(HANDLE hStdout, int cx, int cy)
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{
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CONSOLE_SCREEN_BUFFER_INFO info;
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COORD coordMax;
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coordMax = GetLargestConsoleWindowSize(hStdout);
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if (cy > coordMax.Y)
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cy = coordMax.Y;
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if (cx > coordMax.X)
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cx = coordMax.X;
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if (!GetConsoleScreenBufferInfo(hStdout, &info))
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return FALSE;
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// height
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info.srWindow.Left = 0;
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info.srWindow.Right = info.dwSize.X - 1;
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info.srWindow.Top = 0;
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info.srWindow.Bottom = cy - 1;
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if (cy < info.dwSize.Y)
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{
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if (!SetConsoleWindowInfo(hStdout, TRUE, &info.srWindow))
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return FALSE;
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info.dwSize.Y = cy;
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if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
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return FALSE;
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}
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else if (cy > info.dwSize.Y)
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{
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info.dwSize.Y = cy;
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if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
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return FALSE;
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if (!SetConsoleWindowInfo(hStdout, TRUE, &info.srWindow))
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return FALSE;
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}
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if (!GetConsoleScreenBufferInfo(hStdout, &info))
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return FALSE;
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// width
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info.srWindow.Left = 0;
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info.srWindow.Right = cx - 1;
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info.srWindow.Top = 0;
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info.srWindow.Bottom = info.dwSize.Y - 1;
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if (cx < info.dwSize.X)
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{
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if (!SetConsoleWindowInfo(hStdout, TRUE, &info.srWindow))
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return FALSE;
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info.dwSize.X = cx;
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if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
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return FALSE;
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}
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else if (cx > info.dwSize.X)
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{
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info.dwSize.X = cx;
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if (!SetConsoleScreenBufferSize(hStdout, info.dwSize))
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return FALSE;
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if (!SetConsoleWindowInfo(hStdout, TRUE, &info.srWindow))
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return FALSE;
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}
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return TRUE;
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}
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/*
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==============
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GetMappedBuffer
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==============
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*/
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LPVOID GetMappedBuffer (HANDLE hfileBuffer)
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{
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LPVOID pBuffer;
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pBuffer = MapViewOfFile (hfileBuffer,
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FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, 0);
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return pBuffer;
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}
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/*
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==============
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ReleaseMappedBuffer
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==============
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*/
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void ReleaseMappedBuffer (LPVOID pBuffer)
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{
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UnmapViewOfFile (pBuffer);
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}
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/*
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==============
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GetScreenBufferLines
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==============
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*/
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BOOL GetScreenBufferLines (int *piLines)
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{
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CONSOLE_SCREEN_BUFFER_INFO info;
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BOOL bRet;
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bRet = GetConsoleScreenBufferInfo (hStdout, &info);
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if (bRet)
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*piLines = info.dwSize.Y;
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return bRet;
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}
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/*
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==============
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SetScreenBufferLines
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==============
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*/
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BOOL SetScreenBufferLines (int iLines)
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{
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return SetConsoleCXCY (hStdout, 80, iLines);
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}
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/*
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==============
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ReadText
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==============
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*/
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BOOL ReadText (LPTSTR pszText, int iBeginLine, int iEndLine)
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{
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COORD coord;
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DWORD dwRead;
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BOOL bRet;
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coord.X = 0;
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coord.Y = iBeginLine;
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bRet = ReadConsoleOutputCharacter(
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hStdout,
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pszText,
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80 * (iEndLine - iBeginLine + 1),
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coord,
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&dwRead);
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// Make sure it's null terminated.
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if (bRet)
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pszText[dwRead] = '\0';
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return bRet;
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}
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/*
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==============
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CharToCode
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==============
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*/
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int CharToCode (char c)
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{
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char upper;
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upper = toupper(c);
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switch (c)
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{
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case 13:
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return 28;
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default:
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break;
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}
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if (V_isalpha(c))
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return (30 + upper - 65);
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if (V_isdigit(c))
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return (1 + upper - 47);
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return c;
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}
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/*
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==============
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WriteText
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==============
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*/
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BOOL WriteText (LPCTSTR szText)
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{
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DWORD dwWritten;
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INPUT_RECORD rec;
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char upper, *sz;
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sz = (LPTSTR) szText;
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while (*sz)
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{
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// 13 is the code for a carriage return (\n) instead of 10.
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if (*sz == 10)
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*sz = 13;
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upper = toupper(*sz);
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rec.EventType = KEY_EVENT;
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rec.Event.KeyEvent.bKeyDown = TRUE;
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rec.Event.KeyEvent.wRepeatCount = 1;
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rec.Event.KeyEvent.wVirtualKeyCode = upper;
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rec.Event.KeyEvent.wVirtualScanCode = CharToCode (*sz);
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rec.Event.KeyEvent.uChar.AsciiChar = *sz;
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rec.Event.KeyEvent.uChar.UnicodeChar = *sz;
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rec.Event.KeyEvent.dwControlKeyState = V_isupper(*sz) ? 0x80 : 0x0;
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WriteConsoleInput(
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hStdin,
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&rec,
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1,
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&dwWritten);
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rec.Event.KeyEvent.bKeyDown = FALSE;
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WriteConsoleInput(
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hStdin,
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&rec,
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1,
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&dwWritten);
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sz++;
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}
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return TRUE;
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}
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/*
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==============
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RequestProc
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==============
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*/
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unsigned _stdcall RequestProc (void *arg)
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{
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int *pBuffer;
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DWORD dwRet;
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HANDLE heventWait[2];
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int iBeginLine, iEndLine;
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heventWait[0] = heventParentSend;
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heventWait[1] = heventDone;
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while (1)
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{
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dwRet = WaitForMultipleObjects (2, heventWait, FALSE, INFINITE);
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// heventDone fired, so we're exiting.
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if (dwRet == WAIT_OBJECT_0 + 1)
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break;
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pBuffer = (int *) GetMappedBuffer (hfileBuffer);
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// hfileBuffer is invalid. Just leave.
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if (!pBuffer)
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{
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sys->Printf ("Request Proc: Invalid -HFILE handle\n");
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break;
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}
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switch (pBuffer[0])
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{
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case CCOM_WRITE_TEXT:
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// Param1 : Text
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pBuffer[0] = WriteText ((LPCTSTR) (pBuffer + 1));
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break;
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case CCOM_GET_TEXT:
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// Param1 : Begin line
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// Param2 : End line
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iBeginLine = pBuffer[1];
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iEndLine = pBuffer[2];
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pBuffer[0] = ReadText ((LPTSTR) (pBuffer + 1), iBeginLine,
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iEndLine);
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break;
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case CCOM_GET_SCR_LINES:
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// No params
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pBuffer[0] = GetScreenBufferLines (&pBuffer[1]);
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break;
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case CCOM_SET_SCR_LINES:
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// Param1 : Number of lines
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pBuffer[0] = SetScreenBufferLines (pBuffer[1]);
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break;
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}
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ReleaseMappedBuffer (pBuffer);
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SetEvent (heventChildSend);
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}
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_endthreadex (0);
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return 0;
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}
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/*
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==============
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DeinitConProc
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==============
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*/
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void DeinitConProc (void)
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{
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if ( heventDone )
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{
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SetEvent ( heventDone );
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}
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}
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/*
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==============
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InitConProc
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==============
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*/
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void InitConProc ( void )
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{
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unsigned threadAddr;
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HANDLE hFile = (HANDLE)0;
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HANDLE heventParent = (HANDLE)0;
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HANDLE heventChild = (HANDLE)0;
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int WantHeight = 50;
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const char *p;
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// give external front ends a chance to hook into the console
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if ( CommandLine()->CheckParm ( "-HFILE", &p ) && p )
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{
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hFile = (HANDLE)atoi ( p );
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}
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if ( CommandLine()->CheckParm ( "-HPARENT", &p ) && p )
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{
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heventParent = (HANDLE)atoi ( p );
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}
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if ( CommandLine()->CheckParm ( "-HCHILD", &p ) && p )
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{
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heventChild = (HANDLE)atoi ( p );
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}
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// ignore if we don't have all the events.
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if ( !hFile || !heventParent || !heventChild )
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{
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//sys->Printf ("\n\nNo external front end present.\n" );
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return;
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}
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sys->Printf( "\n\nInitConProc: Setting up external control.\n" );
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hfileBuffer = hFile;
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heventParentSend = heventParent;
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heventChildSend = heventChild;
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// So we'll know when to go away.
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heventDone = CreateEvent (NULL, FALSE, FALSE, NULL);
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if (!heventDone)
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{
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sys->Printf ("InitConProc: Couldn't create heventDone\n");
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return;
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}
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if (!_beginthreadex (NULL, 0, RequestProc, NULL, 0, &threadAddr))
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{
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CloseHandle (heventDone);
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sys->Printf ("InitConProc: Couldn't create third party thread\n");
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return;
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}
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// save off the input/output handles.
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hStdout = GetStdHandle (STD_OUTPUT_HANDLE);
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hStdin = GetStdHandle (STD_INPUT_HANDLE);
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if ( CommandLine()->CheckParm( "-conheight", &p ) && p )
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{
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WantHeight = atoi( p );
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}
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// Force 80 character width, at least 25 character height
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SetConsoleCXCY( hStdout, 80, WantHeight );
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}
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#endif // _WIN32
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