mirror of
https://github.com/DrBeef/ioq3quest.git
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ea997b340e
it is dynamically loaded at run-time. this means that win95/win98 systems can fail the homepath detection gracefully if they don't have the dll installed (this dll is only provided by Internet Explorer updates on those systems)
331 lines
6.6 KiB
C
331 lines
6.6 KiB
C
/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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#include "../qcommon/q_shared.h"
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#include "../qcommon/qcommon.h"
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#include "win_local.h"
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#include <lmerr.h>
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#include <lmcons.h>
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#include <lmwksta.h>
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#include <errno.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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/*
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================
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Sys_Milliseconds
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================
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*/
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int sys_timeBase;
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int Sys_Milliseconds (void)
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{
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int sys_curtime;
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static qboolean initialized = qfalse;
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if (!initialized) {
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sys_timeBase = timeGetTime();
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initialized = qtrue;
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}
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sys_curtime = timeGetTime() - sys_timeBase;
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return sys_curtime;
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}
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#ifndef __GNUC__ //see snapvectora.s
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/*
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================
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Sys_SnapVector
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================
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*/
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void Sys_SnapVector( float *v )
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{
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int i;
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float f;
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f = *v;
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__asm fld f;
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__asm fistp i;
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*v = i;
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v++;
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f = *v;
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__asm fld f;
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__asm fistp i;
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*v = i;
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v++;
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f = *v;
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__asm fld f;
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__asm fistp i;
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*v = i;
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}
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#endif
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/*
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**
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** Disable all optimizations temporarily so this code works correctly!
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**
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*/
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#ifdef _MSC_VER
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#pragma optimize( "", off )
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#endif
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// If you fancy porting this stuff to AT&T then feel free... :)
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// It's not actually used functionally though, so it may be a waste of effort
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#ifndef __MINGW32__
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/*
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** --------------------------------------------------------------------------------
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**
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** PROCESSOR STUFF
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**
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** --------------------------------------------------------------------------------
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*/
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static void CPUID( int func, unsigned regs[4] )
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{
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unsigned regEAX, regEBX, regECX, regEDX;
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__asm mov eax, func
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__asm __emit 00fh
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__asm __emit 0a2h
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__asm mov regEAX, eax
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__asm mov regEBX, ebx
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__asm mov regECX, ecx
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__asm mov regEDX, edx
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regs[0] = regEAX;
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regs[1] = regEBX;
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regs[2] = regECX;
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regs[3] = regEDX;
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}
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static int IsPentium( void )
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{
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__asm
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{
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pushfd // save eflags
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pop eax
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test eax, 0x00200000 // check ID bit
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jz set21 // bit 21 is not set, so jump to set_21
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and eax, 0xffdfffff // clear bit 21
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push eax // save new value in register
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popfd // store new value in flags
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pushfd
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pop eax
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test eax, 0x00200000 // check ID bit
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jz good
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jmp err // cpuid not supported
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set21:
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or eax, 0x00200000 // set ID bit
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push eax // store new value
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popfd // store new value in EFLAGS
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pushfd
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pop eax
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test eax, 0x00200000 // if bit 21 is on
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jnz good
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jmp err
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}
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err:
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return qfalse;
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good:
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return qtrue;
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}
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static int Is3DNOW( void )
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{
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unsigned regs[4];
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char pstring[16];
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char processorString[13];
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// get name of processor
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CPUID( 0, ( unsigned int * ) pstring );
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processorString[0] = pstring[4];
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processorString[1] = pstring[5];
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processorString[2] = pstring[6];
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processorString[3] = pstring[7];
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processorString[4] = pstring[12];
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processorString[5] = pstring[13];
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processorString[6] = pstring[14];
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processorString[7] = pstring[15];
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processorString[8] = pstring[8];
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processorString[9] = pstring[9];
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processorString[10] = pstring[10];
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processorString[11] = pstring[11];
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processorString[12] = 0;
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// REMOVED because you can have 3DNow! on non-AMD systems
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// if ( strcmp( processorString, "AuthenticAMD" ) )
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// return qfalse;
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// check AMD-specific functions
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CPUID( 0x80000000, regs );
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if ( regs[0] < 0x80000000 )
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return qfalse;
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// bit 31 of EDX denotes 3DNOW! support
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CPUID( 0x80000001, regs );
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if ( regs[3] & ( 1 << 31 ) )
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return qtrue;
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return qfalse;
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}
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static int IsKNI( void )
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{
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unsigned regs[4];
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// get CPU feature bits
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CPUID( 1, regs );
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// bit 25 of EDX denotes KNI existence
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if ( regs[3] & ( 1 << 25 ) )
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return qtrue;
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return qfalse;
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}
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static int IsMMX( void )
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{
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unsigned regs[4];
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// get CPU feature bits
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CPUID( 1, regs );
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// bit 23 of EDX denotes MMX existence
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if ( regs[3] & ( 1 << 23 ) )
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return qtrue;
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return qfalse;
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}
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int Sys_GetProcessorId( void )
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{
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#if defined _M_ALPHA
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return CPUID_AXP;
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#elif !defined _M_IX86
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return CPUID_GENERIC;
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#else
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// verify we're at least a Pentium or 486 w/ CPUID support
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if ( !IsPentium() )
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return CPUID_INTEL_UNSUPPORTED;
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// check for MMX
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if ( !IsMMX() )
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{
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// Pentium or PPro
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return CPUID_INTEL_PENTIUM;
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}
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// see if we're an AMD 3DNOW! processor
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if ( Is3DNOW() )
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{
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return CPUID_AMD_3DNOW;
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}
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// see if we're an Intel Katmai
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if ( IsKNI() )
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{
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return CPUID_INTEL_KATMAI;
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}
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// by default we're functionally a vanilla Pentium/MMX or P2/MMX
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return CPUID_INTEL_MMX;
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#endif
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}
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#endif
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/*
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**
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** Re-enable optimizations back to what they were
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**
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*/
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#ifdef _MSC_VER
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#pragma optimize( "", on )
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#endif
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//============================================
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char *Sys_GetCurrentUser( void )
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{
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static char s_userName[1024];
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unsigned long size = sizeof( s_userName );
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if ( !GetUserName( s_userName, &size ) )
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strcpy( s_userName, "player" );
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if ( !s_userName[0] )
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{
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strcpy( s_userName, "player" );
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}
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return s_userName;
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}
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char *Sys_DefaultHomePath(void) {
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TCHAR szPath[MAX_PATH];
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static char path[MAX_OSPATH];
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FARPROC qSHGetFolderPath;
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HMODULE shfolder = LoadLibrary("shfolder.dll");
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if(shfolder == NULL) {
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Com_Printf("Unable to load SHFolder.dll\n");
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return NULL;
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}
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qSHGetFolderPath = GetProcAddress(shfolder, "SHGetFolderPathA");
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if(qSHGetFolderPath == NULL)
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{
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Com_Printf("Unable to find SHGetFolderPath in SHFolder.dll\n");
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FreeLibrary(shfolder);
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return NULL;
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}
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if( !SUCCEEDED( qSHGetFolderPath( NULL, CSIDL_APPDATA,
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NULL, 0, szPath ) ) )
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{
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Com_Printf("Unable to detect CSIDL_APPDATA\n");
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FreeLibrary(shfolder);
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return NULL;
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}
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Q_strncpyz( path, szPath, sizeof(path) );
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Q_strcat( path, sizeof(path), "\\Quake3" );
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FreeLibrary(shfolder);
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if( !CreateDirectory( path, NULL ) )
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{
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if( GetLastError() != ERROR_ALREADY_EXISTS )
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{
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Com_Printf("Unable to create directory \"%s\"\n", path);
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return NULL;
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}
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}
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return path;
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}
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char *Sys_DefaultInstallPath(void)
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{
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return Sys_Cwd();
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}
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