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raze/source/platform/win32/i_system.cpp
Christoph Oelckers 10683e9123 - added GZDoom's Windows backend code. 
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2019-12-22 20:55:47 +01:00

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/*
** i_system.cpp
** Timers, pre-console output, IWAD selection, and misc system routines.
**
**---------------------------------------------------------------------------
** Copyright 1998-2009 Randy Heit
** Copyright (C) 2007-2012 Skulltag Development Team
** Copyright (C) 2007-2016 Zandronum Development Team
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
** 4. Redistributions in any form must be accompanied by information on how to
** obtain complete source code for the software and any accompanying software
** that uses the software. The source code must either be included in the
** distribution or be available for no more than the cost of distribution plus
** a nominal fee, and must be freely redistributable under reasonable
** conditions. For an executable file, complete source code means the source
** code for all modules it contains. It does not include source code for
** modules or files that typically accompany the major components of the
** operating system on which the executable file runs.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
// HEADER FILES ------------------------------------------------------------
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <process.h>
#include <time.h>
#include <map>
#include <stdarg.h>
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <mmsystem.h>
#include <richedit.h>
#include <wincrypt.h>
#include "hardware.h"
#include "printf.h"
#include "version.h"
#include "i_sound.h"
#include "resource.h"
#include "stats.h"
#include "v_text.h"
#include "utf8.h"
#include "i_input.h"
#include "c_dispatch.h"
#include "templates.h"
#include "gameconfigfile.h"
#include "v_font.h"
#include "i_system.h"
#include "textures/bitmap.h"
extern bool batchrun;
// MACROS ------------------------------------------------------------------
#ifdef _MSC_VER
// Turn off "conversion from 'LONG_PTR' to 'LONG', possible loss of data"
// generated by SetClassLongPtr().
#pragma warning(disable:4244)
#endif
// TYPES -------------------------------------------------------------------
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
//extern void CheckCPUID(CPUInfo *cpu);
extern void LayoutMainWindow(HWND hWnd, HWND pane);
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
void DestroyCustomCursor();
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
static void CalculateCPUSpeed();
static HCURSOR CreateCompatibleCursor(FBitmap &cursorpic, int leftofs, int topofs);
static HCURSOR CreateAlphaCursor(FBitmap &cursorpic, int leftofs, int topofs);
static HCURSOR CreateBitmapCursor(int xhot, int yhot, HBITMAP and_mask, HBITMAP color_mask);
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
EXTERN_CVAR (Bool, queryiwad);
// Used on welcome/IWAD screen.
EXTERN_CVAR (Bool, disableautoload)
EXTERN_CVAR (Bool, autoloadlights)
EXTERN_CVAR (Bool, autoloadbrightmaps)
EXTERN_CVAR (Int, vid_preferbackend)
extern HWND Window, ConWindow, GameTitleWindow;
extern HANDLE StdOut;
extern bool FancyStdOut;
extern HINSTANCE g_hInst;
extern FILE *Logfile;
extern bool NativeMouse;
extern bool ConWindowHidden;
// PUBLIC DATA DEFINITIONS -------------------------------------------------
CVAR (String, queryiwad_key, "shift", CVAR_GLOBALCONFIG|CVAR_ARCHIVE);
CVAR (Bool, con_debugoutput, false, 0);
double PerfToSec, PerfToMillisec;
UINT TimerPeriod;
int sys_ostype = 0;
// PRIVATE DATA DEFINITIONS ------------------------------------------------
static WadStuff *WadList;
static int NumWads;
static int DefaultWad;
static HCURSOR CustomCursor;
//==========================================================================
//
// I_DetectOS
//
// Determine which version of Windows the game is running on.
//
//==========================================================================
void I_DetectOS(void)
{
OSVERSIONINFOEX info;
const char *osname;
info.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
if (!GetVersionEx((OSVERSIONINFO *)&info))
{
// Retry with the older OSVERSIONINFO structure.
info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx((OSVERSIONINFO *)&info);
}
switch (info.dwPlatformId)
{
case VER_PLATFORM_WIN32_NT:
osname = "NT";
if (info.dwMajorVersion == 5)
{
if (info.dwMinorVersion == 0)
{
osname = "2000";
}
if (info.dwMinorVersion == 1)
{
osname = "XP";
sys_ostype = 1; // legacy OS
}
else if (info.dwMinorVersion == 2)
{
osname = "Server 2003";
sys_ostype = 1; // legacy OS
}
}
else if (info.dwMajorVersion == 6)
{
if (info.dwMinorVersion == 0)
{
osname = (info.wProductType == VER_NT_WORKSTATION) ? "Vista" : "Server 2008";
sys_ostype = 2; // legacy OS
}
else if (info.dwMinorVersion == 1)
{
osname = (info.wProductType == VER_NT_WORKSTATION) ? "7" : "Server 2008 R2";
sys_ostype = 2; // supported OS
}
else if (info.dwMinorVersion == 2)
{
// Starting with Windows 8.1, you need to specify in your manifest
// the highest version of Windows you support, which will also be the
// highest version of Windows this function returns.
osname = (info.wProductType == VER_NT_WORKSTATION) ? "8" : "Server 2012";
sys_ostype = 2; // supported OS
}
else if (info.dwMinorVersion == 3)
{
osname = (info.wProductType == VER_NT_WORKSTATION) ? "8.1" : "Server 2012 R2";
sys_ostype = 2; // supported OS
}
else if (info.dwMinorVersion == 4)
{
osname = (info.wProductType == VER_NT_WORKSTATION) ? "10 (beta)" : "Server 10 (beta)";
}
}
else if (info.dwMajorVersion == 10)
{
osname = (info.wProductType == VER_NT_WORKSTATION) ? "10 (or higher)" : "Server 10 (or higher)";
sys_ostype = 3; // modern OS
}
break;
default:
osname = "Unknown OS";
break;
}
if (!batchrun) Printf ("OS: Windows %s (NT %lu.%lu) Build %lu\n %s\n",
osname,
info.dwMajorVersion, info.dwMinorVersion,
info.dwBuildNumber, info.szCSDVersion);
}
//==========================================================================
//
// CalculateCPUSpeed
//
// Make a decent guess at how much time elapses between TSC steps. This can
// vary over runtime depending on power management settings, so should not
// be used anywhere that truely accurate timing actually matters.
//
//==========================================================================
void CalculateCPUSpeed()
{
LARGE_INTEGER freq;
QueryPerformanceFrequency (&freq);
if (freq.QuadPart != 0)
{
LARGE_INTEGER count1, count2;
cycle_t ClockCalibration;
DWORD min_diff;
ClockCalibration.Reset();
// Count cycles for at least 55 milliseconds.
// The performance counter may be very low resolution compared to CPU
// speeds today, so the longer we count, the more accurate our estimate.
// On the other hand, we don't want to count too long, because we don't
// want the user to notice us spend time here, since most users will
// probably never use the performance statistics.
min_diff = freq.LowPart * 11 / 200;
// Minimize the chance of task switching during the testing by going very
// high priority. This is another reason to avoid timing for too long.
SetPriorityClass(GetCurrentProcess(), REALTIME_PRIORITY_CLASS);
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL);
// Make sure we start timing on a counter boundary.
QueryPerformanceCounter(&count1);
do { QueryPerformanceCounter(&count2); } while (count1.QuadPart == count2.QuadPart);
// Do the timing loop.
ClockCalibration.Clock();
do { QueryPerformanceCounter(&count1); } while ((count1.QuadPart - count2.QuadPart) < min_diff);
ClockCalibration.Unclock();
SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_NORMAL);
PerfToSec = double(count1.QuadPart - count2.QuadPart) / (double(ClockCalibration.GetRawCounter()) * freq.QuadPart);
PerfToMillisec = PerfToSec * 1000.0;
}
if (!batchrun) Printf ("CPU speed: %.0f MHz\n", 0.001 / PerfToMillisec);
}
//==========================================================================
//
// I_Init
//
//==========================================================================
void I_Init()
{
//CheckCPUID(&CPU);
CalculateCPUSpeed();
//DumpCPUInfo(&CPU);
}
//==========================================================================
//
// I_PrintStr
//
// Send output to the list box shown during startup (and hidden during
// gameplay).
//
//==========================================================================
static void DoPrintStr(const char *cpt, HWND edit, HANDLE StdOut)
{
if (edit == nullptr && StdOut == nullptr && !con_debugoutput)
return;
wchar_t wbuf[256];
int bpos = 0;
CHARRANGE selection;
CHARRANGE endselection;
LONG lines_before = 0, lines_after;
CHARFORMAT format;
if (edit != NULL)
{
// Store the current selection and set it to the end so we can append text.
SendMessage(edit, EM_EXGETSEL, 0, (LPARAM)&selection);
endselection.cpMax = endselection.cpMin = GetWindowTextLength(edit);
SendMessage(edit, EM_EXSETSEL, 0, (LPARAM)&endselection);
// GetWindowTextLength and EM_EXSETSEL can disagree on where the end of
// the text is. Find out what EM_EXSETSEL thought it was and use that later.
SendMessage(edit, EM_EXGETSEL, 0, (LPARAM)&endselection);
// Remember how many lines there were before we added text.
lines_before = (LONG)SendMessage(edit, EM_GETLINECOUNT, 0, 0);
}
const uint8_t *cptr = (const uint8_t*)cpt;
auto outputIt = [&]()
{
wbuf[bpos] = 0;
if (edit != nullptr)
{
SendMessageW(edit, EM_REPLACESEL, FALSE, (LPARAM)wbuf);
}
if (con_debugoutput)
{
OutputDebugStringW(wbuf);
}
if (StdOut != nullptr)
{
// Convert back to UTF-8.
DWORD bytes_written;
if (!FancyStdOut)
{
FString conout(wbuf);
WriteFile(StdOut, conout.GetChars(), (DWORD)conout.Len(), &bytes_written, NULL);
}
else
{
WriteConsoleW(StdOut, wbuf, bpos, &bytes_written, nullptr);
}
}
bpos = 0;
};
while (int chr = GetCharFromString(cptr))
{
if ((chr == TEXTCOLOR_ESCAPE && bpos != 0) || bpos == 255)
{
outputIt();
}
if (chr != TEXTCOLOR_ESCAPE)
{
if (chr >= 0x1D && chr <= 0x1F)
{ // The bar characters, most commonly used to indicate map changes
chr = 0x2550; // Box Drawings Double Horizontal
}
wbuf[bpos++] = chr;
}
else
{
EColorRange range = V_ParseFontColor(cptr, CR_UNTRANSLATED, CR_YELLOW);
if (range != CR_UNDEFINED)
{
// Change the color of future text added to the control.
PalEntry color = V_LogColorFromColorRange(range);
if (edit != NULL)
{
// GDI uses BGR colors, but color is RGB, so swap the R and the B.
std::swap(color.r, color.b);
// Change the color.
format.cbSize = sizeof(format);
format.dwMask = CFM_COLOR;
format.dwEffects = 0;
format.crTextColor = color;
SendMessage(edit, EM_SETCHARFORMAT, SCF_SELECTION, (LPARAM)&format);
}
}
}
}
if (bpos != 0)
{
outputIt();
}
if (edit != NULL)
{
// If the old selection was at the end of the text, keep it at the end and
// scroll. Don't scroll if the selection is anywhere else.
if (selection.cpMin == endselection.cpMin && selection.cpMax == endselection.cpMax)
{
selection.cpMax = selection.cpMin = GetWindowTextLength (edit);
lines_after = (LONG)SendMessage(edit, EM_GETLINECOUNT, 0, 0);
if (lines_after > lines_before)
{
SendMessage(edit, EM_LINESCROLL, 0, lines_after - lines_before);
}
}
// Restore the previous selection.
SendMessage(edit, EM_EXSETSEL, 0, (LPARAM)&selection);
// Give the edit control a chance to redraw itself.
I_GetEvent();
}
if (StdOut != NULL && FancyStdOut)
{ // Set text back to gray, in case it was changed.
SetConsoleTextAttribute(StdOut, FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
}
}
static TArray<FString> bufferedConsoleStuff;
void I_DebugPrint(const char *cp)
{
if (IsDebuggerPresent())
{
auto wstr = WideString(cp);
OutputDebugStringW(wstr.c_str());
}
}
void I_PrintStr(const char *cp)
{
if (ConWindowHidden)
{
bufferedConsoleStuff.Push(cp);
DoPrintStr(cp, NULL, StdOut);
}
else
{
DoPrintStr(cp, ConWindow, StdOut);
}
}
void I_FlushBufferedConsoleStuff()
{
for (unsigned i = 0; i < bufferedConsoleStuff.Size(); i++)
{
DoPrintStr(bufferedConsoleStuff[i], ConWindow, NULL);
}
bufferedConsoleStuff.Clear();
}
//==========================================================================
//
// SetQueryIWAD
//
// The user had the "Don't ask again" box checked when they closed the
// IWAD selection dialog.
//
//==========================================================================
static void SetQueryIWad(HWND dialog)
{
HWND checkbox = GetDlgItem(dialog, IDC_DONTASKIWAD);
int state = (int)SendMessage(checkbox, BM_GETCHECK, 0, 0);
bool query = (state != BST_CHECKED);
if (!query && queryiwad)
{
MessageBoxA(dialog,
"You have chosen not to show this dialog box in the future.\n"
"If you wish to see it again, hold down SHIFT while starting " GAMENAME ".",
"Don't ask me this again",
MB_OK | MB_ICONINFORMATION);
}
queryiwad = query;
}
//==========================================================================
//
// I_SetCursor
//
// Returns true if the cursor was successfully changed.
//
//==========================================================================
bool I_SetCursor(FTexture *cursorpic)
{
HCURSOR cursor;
if (cursorpic != NULL)
{
auto image = cursorpic->GetBgraBitmap(nullptr);
// Must be no larger than 32x32. (is this still necessary?
if (image.GetWidth() > 32 || image.GetHeight() > 32)
{
return false;
}
// Fixme: This should get a raw image, not a texture. (Once raw images get implemented.)
int lo = cursorpic->GetLeftOffset();
int to = cursorpic->GetTopOffset();
cursor = CreateAlphaCursor(image, lo, to);
if (cursor == NULL)
{
cursor = CreateCompatibleCursor(image, lo, to);
}
if (cursor == NULL)
{
return false;
}
// Replace the existing cursor with the new one.
DestroyCustomCursor();
CustomCursor = cursor;
}
else
{
DestroyCustomCursor();
cursor = LoadCursor(NULL, IDC_ARROW);
}
SetClassLongPtr(Window, GCLP_HCURSOR, (LONG_PTR)cursor);
if (NativeMouse)
{
POINT pt;
RECT client;
// If the mouse pointer is within the window's client rect, set it now.
if (GetCursorPos(&pt) && GetClientRect(Window, &client) &&
ClientToScreen(Window, (LPPOINT)&client.left) &&
ClientToScreen(Window, (LPPOINT)&client.right))
{
if (pt.x >= client.left && pt.x < client.right &&
pt.y >= client.top && pt.y < client.bottom)
{
SetCursor(cursor);
}
}
}
return true;
}
//==========================================================================
//
// CreateCompatibleCursor
//
// Creates a cursor with a 1-bit alpha channel.
//
//==========================================================================
static HCURSOR CreateCompatibleCursor(FBitmap &bmp, int leftofs, int topofs)
{
int picwidth = bmp.GetWidth();
int picheight = bmp.GetHeight();
// Create bitmap masks for the cursor from the texture.
HDC dc = GetDC(NULL);
if (dc == NULL)
{
return nullptr;
}
HDC and_mask_dc = CreateCompatibleDC(dc);
HDC xor_mask_dc = CreateCompatibleDC(dc);
HBITMAP and_mask = CreateCompatibleBitmap(dc, 32, 32);
HBITMAP xor_mask = CreateCompatibleBitmap(dc, 32, 32);
ReleaseDC(NULL, dc);
SelectObject(and_mask_dc, and_mask);
SelectObject(xor_mask_dc, xor_mask);
// Initialize with an invisible cursor.
SelectObject(and_mask_dc, GetStockObject(WHITE_PEN));
SelectObject(and_mask_dc, GetStockObject(WHITE_BRUSH));
Rectangle(and_mask_dc, 0, 0, 32, 32);
SelectObject(xor_mask_dc, GetStockObject(BLACK_PEN));
SelectObject(xor_mask_dc, GetStockObject(BLACK_BRUSH));
Rectangle(xor_mask_dc, 0, 0, 32, 32);
const uint8_t *pixels = bmp.GetPixels();
// Copy color data from the source texture to the cursor bitmaps.
for (int y = 0; y < picheight; ++y)
{
for (int x = 0; x < picwidth; ++x)
{
const uint8_t *bgra = &pixels[x*4 + y*bmp.GetPitch()];
if (bgra[3] != 0)
{
SetPixelV(and_mask_dc, x, y, RGB(0,0,0));
SetPixelV(xor_mask_dc, x, y, RGB(bgra[2], bgra[1], bgra[0]));
}
}
}
DeleteDC(and_mask_dc);
DeleteDC(xor_mask_dc);
// Create the cursor from the bitmaps.
return CreateBitmapCursor(leftofs, topofs, and_mask, xor_mask);
}
//==========================================================================
//
// CreateAlphaCursor
//
// Creates a cursor with a full alpha channel.
//
//==========================================================================
static HCURSOR CreateAlphaCursor(FBitmap &source, int leftofs, int topofs)
{
HDC dc;
BITMAPV5HEADER bi;
HBITMAP color, mono;
void *bits;
// Find closest integer scale factor for the monitor DPI
HDC screenDC = GetDC(0);
int dpi = GetDeviceCaps(screenDC, LOGPIXELSX);
int scale = std::max((dpi + 96 / 2 - 1) / 96, 1);
ReleaseDC(0, screenDC);
memset(&bi, 0, sizeof(bi));
bi.bV5Size = sizeof(bi);
bi.bV5Width = 32 * scale;
bi.bV5Height = 32 * scale;
bi.bV5Planes = 1;
bi.bV5BitCount = 32;
bi.bV5Compression = BI_BITFIELDS;
bi.bV5RedMask = 0x00FF0000;
bi.bV5GreenMask = 0x0000FF00;
bi.bV5BlueMask = 0x000000FF;
bi.bV5AlphaMask = 0xFF000000;
dc = GetDC(NULL);
if (dc == NULL)
{
return NULL;
}
// Create the DIB section with an alpha channel.
color = CreateDIBSection(dc, (BITMAPINFO *)&bi, DIB_RGB_COLORS, &bits, NULL, 0);
ReleaseDC(NULL, dc);
if (color == NULL)
{
return NULL;
}
// Create an empty mask bitmap, since CreateIconIndirect requires this.
mono = CreateBitmap(32 * scale, 32 * scale, 1, 1, NULL);
if (mono == NULL)
{
DeleteObject(color);
return NULL;
}
// Copy cursor to the color bitmap. Note that GDI bitmaps are upside down compared
// to normal conventions, so we create the FBitmap pointing at the last row and use
// a negative pitch so that Blit will use GDI's orientation.
if (scale == 1)
{
FBitmap bmp((uint8_t *)bits + 31 * 32 * 4, -32 * 4, 32, 32);
bmp.Blit(0, 0, source);
}
else
{
TArray<uint32_t> unscaled;
unscaled.Resize(32 * 32);
for (int i = 0; i < 32 * 32; i++) unscaled[i] = 0;
FBitmap bmp((uint8_t *)&unscaled[0] + 31 * 32 * 4, -32 * 4, 32, 32);
bmp.Blit(0, 0, source);
uint32_t *scaled = (uint32_t*)bits;
for (int y = 0; y < 32 * scale; y++)
{
for (int x = 0; x < 32 * scale; x++)
{
scaled[x + y * 32 * scale] = unscaled[x / scale + y / scale * 32];
}
}
}
return CreateBitmapCursor(leftofs * scale, topofs * scale, mono, color);
}
//==========================================================================
//
// CreateBitmapCursor
//
// Create the cursor from the bitmaps. Deletes the bitmaps before returning.
//
//==========================================================================
static HCURSOR CreateBitmapCursor(int xhot, int yhot, HBITMAP and_mask, HBITMAP color_mask)
{
ICONINFO iconinfo =
{
FALSE, // fIcon
(DWORD)xhot, // xHotspot
(DWORD)yhot, // yHotspot
and_mask, // hbmMask
color_mask // hbmColor
};
HCURSOR cursor = CreateIconIndirect(&iconinfo);
// Delete the bitmaps.
DeleteObject(and_mask);
DeleteObject(color_mask);
return cursor;
}
//==========================================================================
//
// DestroyCustomCursor
//
//==========================================================================
void DestroyCustomCursor()
{
if (CustomCursor != NULL)
{
DestroyCursor(CustomCursor);
CustomCursor = NULL;
}
}
//==========================================================================
//
// I_WriteIniFailed
//
// Display a message when the config failed to save.
//
//==========================================================================
bool I_WriteIniFailed()
{
char *lpMsgBuf;
FString errortext;
FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPSTR)&lpMsgBuf,
0,
NULL
);
errortext.Format ("The config file %s could not be written:\n%s", GameConfig->GetPathName(), lpMsgBuf);
LocalFree (lpMsgBuf);
return MessageBoxA(Window, errortext.GetChars(), GAMENAME " configuration not saved", MB_ICONEXCLAMATION | MB_RETRYCANCEL) == IDRETRY;
}
//==========================================================================
//
// I_FindFirst
//
// Start a pattern matching sequence.
//
//==========================================================================
void *I_FindFirst(const char *filespec, findstate_t *fileinfo)
{
static_assert(sizeof(WIN32_FIND_DATAW) == sizeof(fileinfo->FindData), "Findata size mismatch");
auto widespec = WideString(filespec);
fileinfo->UTF8Name = "";
return FindFirstFileW(widespec.c_str(), (LPWIN32_FIND_DATAW)&fileinfo->FindData);
}
//==========================================================================
//
// I_FindNext
//
// Return the next file in a pattern matching sequence.
//
//==========================================================================
int I_FindNext(void *handle, findstate_t *fileinfo)
{
fileinfo->UTF8Name = "";
return !FindNextFileW((HANDLE)handle, (LPWIN32_FIND_DATAW)&fileinfo->FindData);
}
//==========================================================================
//
// I_FindClose
//
// Finish a pattern matching sequence.
//
//==========================================================================
int I_FindClose(void *handle)
{
return FindClose((HANDLE)handle);
}
//==========================================================================
//
// I_FindName
//
// Returns the name for an entry
//
//==========================================================================
const char *I_FindName(findstate_t *fileinfo)
{
if (fileinfo->UTF8Name.IsEmpty()) fileinfo->UTF8Name = fileinfo->FindData.Name;
return fileinfo->UTF8Name.GetChars();
}
//==========================================================================
//
// QueryPathKey
//
// Returns the value of a registry key into the output variable value.
//
//==========================================================================
static bool QueryPathKey(HKEY key, const wchar_t *keypath, const wchar_t *valname, FString &value)
{
HKEY pathkey;
DWORD pathtype;
DWORD pathlen;
LONG res;
value = "";
if(ERROR_SUCCESS == RegOpenKeyEx(key, keypath, 0, KEY_QUERY_VALUE, &pathkey))
{
if (ERROR_SUCCESS == RegQueryValueEx(pathkey, valname, 0, &pathtype, NULL, &pathlen) &&
pathtype == REG_SZ && pathlen != 0)
{
// Don't include terminating null in count
TArray<wchar_t> chars(pathlen + 1, true);
res = RegQueryValueEx(pathkey, valname, 0, NULL, (LPBYTE)chars.Data(), &pathlen);
if (res == ERROR_SUCCESS) value = FString(chars.Data());
}
RegCloseKey(pathkey);
}
return value.IsNotEmpty();
}
//==========================================================================
//
// I_GetGogPaths
//
// Check the registry for GOG installation paths, so we can search for IWADs
// that were bought from GOG.com. This is a bit different from the Steam
// version because each game has its own independent installation path, no
// such thing as <steamdir>/SteamApps/common/<GameName>.
//
//==========================================================================
TArray<FString> I_GetGogPaths()
{
TArray<FString> result;
FString path;
std::wstring gamepath;
#ifdef _WIN64
std::wstring gogregistrypath = L"Software\\Wow6432Node\\GOG.com\\Games";
#else
// If a 32-bit ZDoom runs on a 64-bit Windows, this will be transparently and
// automatically redirected to the Wow6432Node address instead, so this address
// should be safe to use in all cases.
std::wstring gogregistrypath = L"Software\\GOG.com\\Games";
#endif
// Look for Ultimate Doom
gamepath = gogregistrypath + L"\\1435827232";
if (QueryPathKey(HKEY_LOCAL_MACHINE, gamepath.c_str(), L"Path", path))
{
result.Push(path); // directly in install folder
}
// Look for Doom II
gamepath = gogregistrypath + L"\\1435848814";
if (QueryPathKey(HKEY_LOCAL_MACHINE, gamepath.c_str(), L"Path", path))
{
result.Push(path + "/doom2"); // in a subdirectory
// If direct support for the Master Levels is ever added, they are in path + /master/wads
}
// Look for Final Doom
gamepath = gogregistrypath + L"\\1435848742";
if (QueryPathKey(HKEY_LOCAL_MACHINE, gamepath.c_str(), L"Path", path))
{
// in subdirectories
result.Push(path + "/TNT");
result.Push(path + "/Plutonia");
}
// Look for Doom 3: BFG Edition
gamepath = gogregistrypath + L"\\1135892318";
if (QueryPathKey(HKEY_LOCAL_MACHINE, gamepath.c_str(), L"Path", path))
{
result.Push(path + "/base/wads"); // in a subdirectory
}
// Look for Strife: Veteran Edition
gamepath = gogregistrypath + L"\\1432899949";
if (QueryPathKey(HKEY_LOCAL_MACHINE, gamepath.c_str(), L"Path", path))
{
result.Push(path); // directly in install folder
}
return result;
}
//==========================================================================
//
// I_GetSteamPath
//
// Check the registry for the path to Steam, so that we can search for
// IWADs that were bought with Steam.
//
//==========================================================================
TArray<FString> I_GetSteamPath()
{
TArray<FString> result;
static const char *const steam_dirs[] =
{
"doom 2/base",
"final doom/base",
"heretic shadow of the serpent riders/base",
"hexen/base",
"hexen deathkings of the dark citadel/base",
"ultimate doom/base",
"DOOM 3 BFG Edition/base/wads",
"Strife"
};
FString path;
if (!QueryPathKey(HKEY_CURRENT_USER, L"Software\\Valve\\Steam", L"SteamPath", path))
{
if (!QueryPathKey(HKEY_LOCAL_MACHINE, L"Software\\Valve\\Steam", L"InstallPath", path))
return result;
}
path += "/SteamApps/common/";
for(unsigned int i = 0; i < countof(steam_dirs); ++i)
{
result.Push(path + steam_dirs[i]);
}
return result;
}
//==========================================================================
//
// I_MakeRNGSeed
//
// Returns a 32-bit random seed, preferably one with lots of entropy.
//
//==========================================================================
unsigned int I_MakeRNGSeed()
{
unsigned int seed;
// If RtlGenRandom is available, use that to avoid increasing the
// working set by pulling in all of the crytographic API.
HMODULE advapi = GetModuleHandleA("advapi32.dll");
if (advapi != NULL)
{
BOOLEAN (APIENTRY *RtlGenRandom)(void *, ULONG) =
(BOOLEAN (APIENTRY *)(void *, ULONG))GetProcAddress(advapi, "SystemFunction036");
if (RtlGenRandom != NULL)
{
if (RtlGenRandom(&seed, sizeof(seed)))
{
return seed;
}
}
}
// Use the full crytographic API to produce a seed. If that fails,
// time() is used as a fallback.
HCRYPTPROV prov;
if (!CryptAcquireContext(&prov, NULL, MS_DEF_PROV, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
{
return (unsigned int)time(NULL);
}
if (!CryptGenRandom(prov, sizeof(seed), (uint8_t *)&seed))
{
seed = (unsigned int)time(NULL);
}
CryptReleaseContext(prov, 0);
return seed;
}
//==========================================================================
//
// I_GetLongPathName
//
// Returns the long version of the path, or the original if there isn't
// anything worth changing.
//
//==========================================================================
FString I_GetLongPathName(const FString &shortpath)
{
std::wstring wshortpath = shortpath.WideString();
DWORD buffsize = GetLongPathNameW(wshortpath.c_str(), nullptr, 0);
if (buffsize == 0)
{ // nothing to change (it doesn't exist, maybe?)
return shortpath;
}
TArray<WCHAR> buff(buffsize, true);
DWORD buffsize2 = GetLongPathNameW(wshortpath.c_str(), buff.Data(), buffsize);
if (buffsize2 >= buffsize)
{ // Failure! Just return the short path
return shortpath;
}
FString longpath(buff.Data());
return longpath;
}
#ifdef _USING_V110_SDK71_
//==========================================================================
//
// _stat64i32
//
// Work around an issue where stat() function doesn't work
// with Windows XP compatible toolset.
// It uses GetFileInformationByHandleEx() which requires Windows Vista.
//
//==========================================================================
int _wstat64i32(const wchar_t *path, struct _stat64i32 *buffer)
{
WIN32_FILE_ATTRIBUTE_DATA data;
if(!GetFileAttributesExW(path, GetFileExInfoStandard, &data))
return -1;
buffer->st_ino = 0;
buffer->st_mode = ((data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? S_IFDIR : S_IFREG)|
((data.dwFileAttributes & FILE_ATTRIBUTE_READONLY) ? S_IREAD : S_IREAD|S_IWRITE);
buffer->st_dev = buffer->st_rdev = 0;
buffer->st_nlink = 1;
buffer->st_uid = 0;
buffer->st_gid = 0;
buffer->st_size = data.nFileSizeLow;
buffer->st_atime = (*(uint64_t*)&data.ftLastAccessTime) / 10000000 - 11644473600LL;
buffer->st_mtime = (*(uint64_t*)&data.ftLastWriteTime) / 10000000 - 11644473600LL;
buffer->st_ctime = (*(uint64_t*)&data.ftCreationTime) / 10000000 - 11644473600LL;
return 0;
}
#endif
struct NumaNode
{
uint64_t affinityMask = 0;
int threadCount = 0;
};
static TArray<NumaNode> numaNodes;
static void SetupNumaNodes()
{
if (numaNodes.Size() == 0)
{
// Query processors in the system
DWORD_PTR processMask = 0, systemMask = 0;
BOOL result = GetProcessAffinityMask(GetCurrentProcess(), &processMask, &systemMask);
if (result)
{
// Find the numa node each processor belongs to
std::map<int, NumaNode> nodes;
for (int i = 0; i < sizeof(DWORD_PTR) * 8; i++)
{
DWORD_PTR processorMask = (((DWORD_PTR)1) << i);
if (processMask & processorMask)
{
UCHAR nodeNumber = 0;
result = GetNumaProcessorNode(i, &nodeNumber);
if (nodeNumber != 0xff)
{
nodes[nodeNumber].affinityMask |= (uint64_t)processorMask;
nodes[nodeNumber].threadCount++;
}
}
}
// Convert map to a list
for (const auto &it : nodes)
{
numaNodes.Push(it.second);
}
}
// Fall back to a single node if something went wrong
if (numaNodes.Size() == 0)
{
NumaNode node;
node.threadCount = std::thread::hardware_concurrency();
if (node.threadCount == 0)
node.threadCount = 1;
numaNodes.Push(node);
}
}
}
int I_GetNumaNodeCount()
{
SetupNumaNodes();
return numaNodes.Size();
}
int I_GetNumaNodeThreadCount(int numaNode)
{
SetupNumaNodes();
return numaNodes[numaNode].threadCount;
}
void I_SetThreadNumaNode(std::thread &thread, int numaNode)
{
if (numaNodes.Size() > 1)
{
HANDLE handle = (HANDLE)thread.native_handle();
SetThreadAffinityMask(handle, (DWORD_PTR)numaNodes[numaNode].affinityMask);
}
}
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