Add windows/system.c
This files contains most support functions for windows and the main loop. It was taken from Icculus Quake II and cleaned up. This early version may still have bugs.
This commit is contained in:
Yamagi Burmeister
parent
ce3d61ef61
commit
4adc6a2ca2
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@ -0,0 +1,573 @@
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/*
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* Copyright (C) 1997-2001 Id Software, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* =======================================================================
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*
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* This file is the starting point of the program and implements
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* several support functions and the main loop.
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*
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* =======================================================================
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*/
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#include <errno.h>
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#include <float.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <direct.h>
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#include <io.h>
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#include <conio.h>
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#include "../common/header/common.h"
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#include "conproc.h"
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#include "resource.h"
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#include "winquake.h"
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#define MAX_NUM_ARGVS 128
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int starttime;
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int ActiveApp;
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qboolean Minimized;
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static HANDLE hinput, houtput;
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static HANDLE qwclsemaphore;
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HINSTANCE global_hInstance;
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static HINSTANCE game_library;
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unsigned int sys_msg_time;
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unsigned int sys_frame_time;
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static char console_text[256];
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static int console_textlen;
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int argc;
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char *argv[MAX_NUM_ARGVS];
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/* ================================================================ */
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void
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Sys_Error(char *error, ...)
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{
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va_list argptr;
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char text[1024];
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CL_Shutdown();
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Qcommon_Shutdown();
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va_start(argptr, error);
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vsprintf(text, error, argptr);
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va_end(argptr);
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MessageBox(NULL, text, "Error", 0 /* MB_OK */);
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if (qwclsemaphore)
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{
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CloseHandle(qwclsemaphore);
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}
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/* shut down QHOST hooks if necessary */
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DeinitConProc();
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exit(1);
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}
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void
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Sys_Quit(void)
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{
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timeEndPeriod(1);
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CL_Shutdown();
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Qcommon_Shutdown();
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CloseHandle(qwclsemaphore);
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if (dedicated && dedicated->value)
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{
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FreeConsole();
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}
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/* shut down QHOST hooks if necessary */
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DeinitConProc();
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exit(0);
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}
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void
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WinError(void)
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{
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LPVOID lpMsgBuf;
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FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
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NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPTSTR)&lpMsgBuf, 0, NULL);
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/* Display the string. */
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MessageBox(NULL, lpMsgBuf, "GetLastError", MB_OK | MB_ICONINFORMATION);
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/* Free the buffer. */
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LocalFree(lpMsgBuf);
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}
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/* ================================================================ */
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char *
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Sys_ScanForCD(void)
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{
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static char cddir[MAX_OSPATH];
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static qboolean done;
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char drive[4];
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FILE *f;
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char test[MAX_QPATH];
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if (done) /* don't re-check */
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{
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return cddir;
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}
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/* no abort/retry/fail errors */
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SetErrorMode(SEM_FAILCRITICALERRORS);
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drive[0] = 'c';
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drive[1] = ':';
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drive[2] = '\\';
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drive[3] = 0;
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done = true;
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/* scan the drives */
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for (drive[0] = 'c'; drive[0] <= 'z'; drive[0]++)
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{
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/* where activision put the stuff... */
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sprintf(cddir, "%sinstall\\data", drive);
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sprintf(test, "%sinstall\\data\\quake2.exe", drive);
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f = fopen(test, "r");
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if (f)
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{
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fclose(f);
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if (GetDriveType(drive) == DRIVE_CDROM)
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{
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return cddir;
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}
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}
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}
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cddir[0] = 0;
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return NULL;
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}
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/* ================================================================ */
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void
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Sys_Init(void)
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{
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OSVERSIONINFO vinfo;
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timeBeginPeriod(1);
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vinfo.dwOSVersionInfoSize = sizeof(vinfo);
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if (!GetVersionEx(&vinfo))
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{
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Sys_Error("Couldn't get OS info");
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}
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/* While Quake II should run on older versions,
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limit Yamagi Quake II to Windows XP and
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above. Testing older version would be a
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PITA. */
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if (!(vinfo.dwMajorVersion > 5) ||
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((vinfo.dwMajorVersion == 5) &&
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(vinfo.dwMinorVersion >= 1)))
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{
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Sys_Error("Yamagi Quake II needs Windows XP or higher!\n");
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}
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if (dedicated->value)
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{
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if (!AllocConsole())
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{
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Sys_Error("Couldn't create dedicated server console");
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}
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hinput = GetStdHandle(STD_INPUT_HANDLE);
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houtput = GetStdHandle(STD_OUTPUT_HANDLE);
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/* let QHOST hook in */
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InitConProc(argc, argv);
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}
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}
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char *
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Sys_ConsoleInput(void)
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{
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INPUT_RECORD recs[1024];
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int dummy;
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int ch, numread, numevents;
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if (!dedicated || !dedicated->value)
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{
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return NULL;
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}
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for ( ; ; )
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{
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if (!GetNumberOfConsoleInputEvents(hinput, &numevents))
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{
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Sys_Error("Error getting # of console events");
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}
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if (numevents <= 0)
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{
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break;
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}
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if (!ReadConsoleInput(hinput, recs, 1, &numread))
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{
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Sys_Error("Error reading console input");
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}
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if (numread != 1)
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{
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Sys_Error("Couldn't read console input");
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}
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if (recs[0].EventType == KEY_EVENT)
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{
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if (!recs[0].Event.KeyEvent.bKeyDown)
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{
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ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
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switch (ch)
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{
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case '\r':
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WriteFile(houtput, "\r\n", 2, &dummy, NULL);
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if (console_textlen)
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{
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console_text[console_textlen] = 0;
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console_textlen = 0;
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return console_text;
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}
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break;
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case '\b':
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if (console_textlen)
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{
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console_textlen--;
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WriteFile(houtput, "\b \b", 3, &dummy, NULL);
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}
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break;
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default:
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if (ch >= ' ')
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{
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if (console_textlen < sizeof(console_text) - 2)
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{
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WriteFile(houtput, &ch, 1, &dummy, NULL);
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console_text[console_textlen] = ch;
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console_textlen++;
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}
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}
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break;
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}
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}
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}
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}
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return NULL;
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}
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void
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Sys_ConsoleOutput(char *string)
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{
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int dummy;
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char text[256];
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if (!dedicated || !dedicated->value)
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{
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return;
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}
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if (console_textlen)
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{
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text[0] = '\r';
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memset(&text[1], ' ', console_textlen);
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text[console_textlen + 1] = '\r';
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text[console_textlen + 2] = 0;
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WriteFile(houtput, text, console_textlen + 2, &dummy, NULL);
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}
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WriteFile(houtput, string, strlen(string), &dummy, NULL);
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if (console_textlen)
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{
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WriteFile(houtput, console_text, console_textlen, &dummy, NULL);
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}
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}
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void
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Sys_SendKeyEvents(void)
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{
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MSG msg;
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while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
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{
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if (!GetMessage(&msg, NULL, 0, 0))
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{
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Sys_Quit();
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}
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sys_msg_time = msg.time;
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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/* grab frame time */
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sys_frame_time = timeGetTime();
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}
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char *
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Sys_GetClipboardData(void)
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{
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char *data = NULL;
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char *cliptext;
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if (OpenClipboard(NULL) != 0)
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{
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HANDLE hClipboardData;
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if ((hClipboardData = GetClipboardData(CF_TEXT)) != 0)
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{
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if ((cliptext = GlobalLock(hClipboardData)) != 0)
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{
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data = malloc(GlobalSize(hClipboardData) + 1);
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strcpy(data, cliptext);
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GlobalUnlock(hClipboardData);
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}
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}
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CloseClipboard();
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}
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return data;
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}
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/* ================================================================ */
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void
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Sys_AppActivate(void)
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{
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ShowWindow(cl_hwnd, SW_RESTORE);
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SetForegroundWindow(cl_hwnd);
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}
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/* ================================================================ */
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void
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Sys_UnloadGame(void)
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{
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if (!FreeLibrary(game_library))
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{
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Com_Error(ERR_FATAL, "FreeLibrary failed for game library");
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}
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game_library = NULL;
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}
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void *
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Sys_GetGameAPI(void *parms)
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{
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void *(*GetGameAPI)(void *);
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const char *gamename = "game.dll";
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char name[MAX_OSPATH];
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char *path = NULL;
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char cwd[MAX_OSPATH];
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if (game_library)
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{
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Com_Error(ERR_FATAL, "Sys_GetGameAPI without Sys_UnloadingGame");
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}
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/* now run through the search paths */
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path = NULL;
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while (1)
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{
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path = FS_NextPath(path);
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if (!path)
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{
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return NULL; /* couldn't find one anywhere */
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}
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Com_sprintf(name, sizeof(name), "%s/%s", path, gamename);
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game_library = LoadLibrary(name);
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if (game_library)
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{
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Com_DPrintf("LoadLibrary (%s)\n", name);
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break;
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}
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}
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GetGameAPI = (void *)GetProcAddress(game_library, "GetGameAPI");
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if (!GetGameAPI)
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{
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Sys_UnloadGame();
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return NULL;
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}
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return GetGameAPI(parms);
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}
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/* ======================================================================= */
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void
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ParseCommandLine(LPSTR lpCmdLine)
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{
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argc = 1;
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argv[0] = "exe";
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while (*lpCmdLine && (argc < MAX_NUM_ARGVS))
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{
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while (*lpCmdLine && ((*lpCmdLine <= 32) || (*lpCmdLine > 126)))
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{
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lpCmdLine++;
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}
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if (*lpCmdLine)
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{
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argv[argc] = lpCmdLine;
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argc++;
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while (*lpCmdLine && ((*lpCmdLine > 32) && (*lpCmdLine <= 126)))
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{
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lpCmdLine++;
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}
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if (*lpCmdLine)
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{
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*lpCmdLine = 0;
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lpCmdLine++;
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}
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}
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}
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}
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/*
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* Windows main function. Containts the
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* initialization code and the main loop
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*/
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int WINAPI
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WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
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LPSTR lpCmdLine, int nCmdShow)
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{
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MSG msg;
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int time, oldtime, newtime;
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char *cddir;
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/* Previous instances do not exist in Win32 */
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if (hPrevInstance)
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{
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return 0;
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}
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/* Make the current instance global */
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global_hInstance = hInstance;
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/* Parse the command line arguments */
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ParseCommandLine(lpCmdLine);
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/* Search the CD (for partial installations) */
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cddir = Sys_ScanForCD();
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if (cddir && (argc < MAX_NUM_ARGVS - 3))
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{
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int i;
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/* don't override a cddir on the command line */
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for (i = 0; i < argc; i++)
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{
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if (!strcmp(argv[i], "cddir"))
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{
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break;
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}
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}
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if (i == argc)
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{
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argv[argc++] = "+set";
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argv[argc++] = "cddir";
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argv[argc++] = cddir;
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}
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}
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/* Call the initialization code */
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Qcommon_Init(argc, argv);
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/* Save our time */
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oldtime = Sys_Milliseconds();
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/* The legendary main loop */
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while (1)
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{
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/* If at a full screen console, don't update unless needed */
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if (Minimized || (dedicated && dedicated->value))
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{
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Sleep(1);
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}
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while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
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{
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if (!GetMessage(&msg, NULL, 0, 0))
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{
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Com_Quit();
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}
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sys_msg_time = msg.time;
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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do
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{
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newtime = Sys_Milliseconds();
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time = newtime - oldtime;
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}
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while (time < 1);
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_controlfp(_PC_24, _MCW_PC);
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Qcommon_Frame(time);
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oldtime = newtime;
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}
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/* never gets here */
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return TRUE;
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}
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