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gzdoom/src/d_iwad.cpp

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/*
** d_iwad.cpp
** IWAD detection code
**
**---------------------------------------------------------------------------
** Copyright 1998-2009 Randy Heit
** Copyright 2009 CHristoph Oelckers
** 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.
**
** 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.
**---------------------------------------------------------------------------
**
*/
#include "d_main.h"
#include "gi.h"
#include "cmdlib.h"
#include "doomstat.h"
#include "i_system.h"
#include "w_wad.h"
#include "w_zip.h"
#include "v_palette.h"
#include "m_argv.h"
#include "m_misc.h"
#include "c_cvars.h"
#include "sc_man.h"
#include "v_video.h"
#include "gameconfigfile.h"
#include "resourcefiles/resourcefile.h"
#include "version.h"
CVAR (Bool, queryiwad, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR (String, defaultiwad, "", CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
//==========================================================================
//
// Clear check list
//
//==========================================================================
void FIWadManager::ClearChecks()
{
mLumpsFound.Resize(mIWads.Size());
for(unsigned i=0;i<mLumpsFound.Size(); i++)
{
mLumpsFound[i] = 0;
}
}
//==========================================================================
//
// Check one lump
//
//==========================================================================
void FIWadManager::CheckLumpName(const char *name)
{
for(unsigned i=0; i< mIWads.Size(); i++)
{
for(unsigned j=0; j < mIWads[i].Lumps.Size(); j++)
{
if (!mIWads[i].Lumps[j].CompareNoCase(name))
{
mLumpsFound[i] |= (1<<j);
}
}
}
}
//==========================================================================
//
// Returns check result
//
//==========================================================================
int FIWadManager::GetIWadInfo()
{
for(unsigned i=0; i< mIWads.Size(); i++)
{
if (mLumpsFound[i] == (1 << mIWads[i].Lumps.Size()) - 1)
{
return i;
}
}
return -1;
}
//==========================================================================
//
// Parses IWAD definitions
//
//==========================================================================
void FIWadManager::ParseIWadInfo(const char *fn, const char *data, int datasize)
{
FScanner sc;
sc.OpenMem("IWADINFO", data, datasize);
while (sc.GetString())
{
if (sc.Compare("IWAD"))
{
FIWADInfo *iwad = &mIWads[mIWads.Reserve(1)];
sc.MustGetStringName("{");
while (!sc.CheckString("}"))
{
sc.MustGetString();
if (sc.Compare("Name"))
{
sc.MustGetStringName("=");
sc.MustGetString();
iwad->Name = sc.String;
}
else if (sc.Compare("Autoname"))
{
sc.MustGetStringName("=");
sc.MustGetString();
iwad->Autoname = sc.String;
}
else if (sc.Compare("Config"))
{
sc.MustGetStringName("=");
sc.MustGetString();
iwad->Configname = sc.String;
}
else if (sc.Compare("Game"))
{
sc.MustGetStringName("=");
sc.MustGetString();
if (sc.Compare("Doom")) iwad->gametype = GAME_Doom;
else if (sc.Compare("Heretic")) iwad->gametype = GAME_Heretic;
else if (sc.Compare("Hexen")) iwad->gametype = GAME_Hexen;
else if (sc.Compare("Strife")) iwad->gametype = GAME_Strife;
else if (sc.Compare("Chex")) iwad->gametype = GAME_Chex;
else sc.ScriptError(NULL);
}
else if (sc.Compare("Mapinfo"))
{
sc.MustGetStringName("=");
sc.MustGetString();
iwad->MapInfo = sc.String;
}
else if (sc.Compare("Compatibility"))
{
sc.MustGetStringName("=");
do
{
sc.MustGetString();
if(sc.Compare("NoTextcolor")) iwad->flags |= GI_NOTEXTCOLOR;
else if(sc.Compare("Poly1")) iwad->flags |= GI_COMPATPOLY1;
else if(sc.Compare("Poly2")) iwad->flags |= GI_COMPATPOLY2;
else if(sc.Compare("Shareware")) iwad->flags |= GI_SHAREWARE;
else if(sc.Compare("Teaser2")) iwad->flags |= GI_TEASER2;
else if(sc.Compare("Extended")) iwad->flags |= GI_MENUHACK_EXTENDED;
else if(sc.Compare("Shorttex")) iwad->flags |= GI_COMPATSHORTTEX;
else if(sc.Compare("Stairs")) iwad->flags |= GI_COMPATSTAIRS;
else sc.ScriptError(NULL);
}
while (sc.CheckString(","));
}
else if (sc.Compare("MustContain"))
{
sc.MustGetStringName("=");
do
{
sc.MustGetString();
iwad->Lumps.Push(FString(sc.String));
}
while (sc.CheckString(","));
}
else if (sc.Compare("BannerColors"))
{
sc.MustGetStringName("=");
sc.MustGetString();
iwad->FgColor = V_GetColor(NULL, sc);
sc.MustGetStringName(",");
sc.MustGetString();
iwad->BkColor = V_GetColor(NULL, sc);
}
else if (sc.Compare("Load"))
{
sc.MustGetStringName("=");
do
{
sc.MustGetString();
iwad->Load.Push(FString(sc.String));
}
while (sc.CheckString(","));
}
else if (sc.Compare("Required"))
{
sc.MustGetStringName("=");
sc.MustGetString();
iwad->Required = sc.String;
}
else
{
sc.ScriptError("Unknown keyword '%s'", sc.String);
}
}
if (iwad->MapInfo.IsEmpty())
{
// We must at least load the minimum defaults to allow the engine to run.
iwad->MapInfo = "mapinfo/mindefaults.txt";
}
}
else if (sc.Compare("NAMES"))
{
sc.MustGetStringName("{");
mIWadNames.Push(FString());
while (!sc.CheckString("}"))
{
sc.MustGetString();
FString wadname = sc.String;
#if defined(_WIN32) || defined(__APPLE__) // Turns out Mac OS X is case insensitive.
mIWadNames.Push(wadname);
#else
// check for lowercase, uppercased first letter and full uppercase on Linux etc.
wadname.ToLower();
mIWadNames.Push(wadname);
wadname.LockBuffer()[0] = toupper(wadname[0]);
wadname.UnlockBuffer();
mIWadNames.Push(wadname);
wadname.ToUpper();
mIWadNames.Push(wadname);
#endif
}
}
}
}
//==========================================================================
//
// Look for IWAD definition lump
//
//==========================================================================
void FIWadManager::ParseIWadInfos(const char *fn)
{
FResourceFile *resfile = FResourceFile::OpenResourceFile(fn, NULL, true);
if (resfile != NULL)
{
DWORD cnt = resfile->LumpCount();
for(int i=cnt-1; i>=0; i--)
{
FResourceLump *lmp = resfile->GetLump(i);
if (lmp->Namespace == ns_global && !stricmp(lmp->Name, "IWADINFO"))
{
// Found one!
ParseIWadInfo(resfile->Filename, (const char*)lmp->CacheLump(), lmp->LumpSize);
break;
}
}
delete resfile;
}
if (mIWadNames.Size() == 0 || mIWads.Size() == 0)
{
I_FatalError("No IWAD definitions found");
}
}
//==========================================================================
//
// ScanIWAD
//
// Scan the contents of an IWAD to determine which one it is
//==========================================================================
int FIWadManager::ScanIWAD (const char *iwad)
{
FResourceFile *iwadfile = FResourceFile::OpenResourceFile(iwad, NULL, true);
if (iwadfile != NULL)
{
ClearChecks();
for(DWORD ii = 0; ii < iwadfile->LumpCount(); ii++)
{
FResourceLump *lump = iwadfile->GetLump(ii);
CheckLumpName(lump->Name);
if (lump->FullName.IsNotEmpty())
{
if (strnicmp(lump->FullName, "maps/", 5) == 0)
{
FString mapname(&lump->FullName[5], strcspn(&lump->FullName[5], "."));
CheckLumpName(mapname);
}
}
}
delete iwadfile;
}
return GetIWadInfo();
}
//==========================================================================
//
// CheckIWAD
//
// Tries to find an IWAD from a set of known IWAD names, and checks the
// contents of each one found to determine which game it belongs to.
// Returns the number of new wads found in this pass (does not count wads
// found from a previous call).
//
//==========================================================================
int FIWadManager::CheckIWAD (const char *doomwaddir, WadStuff *wads)
{
const char *slash;
int numfound;
numfound = 0;
slash = (doomwaddir[0] && doomwaddir[strlen (doomwaddir)-1] != '/') ? "/" : "";
// Search for a pre-defined IWAD
for (unsigned i=0; i< mIWadNames.Size(); i++)
{
if (mIWadNames[i].IsNotEmpty() && wads[i].Path.IsEmpty())
{
FString iwad;
iwad.Format ("%s%s%s", doomwaddir, slash, mIWadNames[i].GetChars());
FixPathSeperator (iwad);
if (FileExists (iwad))
{
wads[i].Type = ScanIWAD (iwad);
if (wads[i].Type != -1)
{
wads[i].Path = iwad;
wads[i].Name = mIWads[wads[i].Type].Name;
numfound++;
}
}
}
}
return numfound;
}
//==========================================================================
//
// IdentifyVersion
//
// Tries to find an IWAD in one of four directories under DOS or Win32:
// 1. Current directory
// 2. Executable directory
// 3. $DOOMWADDIR
// 4. $HOME
//
// Under UNIX OSes, the search path is:
// 1. Current directory
// 2. $DOOMWADDIR
// 3. $HOME/.config/zdoom
// 4. The share directory defined at compile time (/usr/local/share/zdoom)
//
// The search path can be altered by editing the IWADSearch.Directories
// section of the config file.
//
//==========================================================================
static bool havepicked = false;
int FIWadManager::IdentifyVersion (TArray<FString> &wadfiles, const char *iwad, const char *zdoom_wad)
{
TArray<WadStuff> wads;
TArray<size_t> foundwads;
const char *iwadparm = Args->CheckValue ("-iwad");
int pickwad;
size_t numwads;
size_t i;
bool iwadparmfound = false;
FString custwad;
wads.Resize(mIWadNames.Size());
foundwads.Resize(mIWads.Size());
memset(&foundwads[0], 0, foundwads.Size() * sizeof(foundwads[0]));
if (iwadparm == NULL && iwad != NULL && *iwad != 0)
{
iwadparm = iwad;
}
if (iwadparm)
{
custwad = iwadparm;
FixPathSeperator (custwad);
if (CheckIWAD (custwad, &wads[0]))
{ // -iwad parameter was a directory
iwadparm = NULL;
}
else
{
DefaultExtension (custwad, ".wad");
iwadparm = custwad;
mIWadNames[0] = custwad;
CheckIWAD ("", &wads[0]);
}
}
if (iwadparm == NULL || wads[0].Path.IsEmpty() || mIWads[wads[0].Type].Required.IsNotEmpty())
{
if (GameConfig->SetSection ("IWADSearch.Directories"))
{
const char *key;
const char *value;
while (GameConfig->NextInSection (key, value))
{
if (stricmp (key, "Path") == 0)
{
FString nice = NicePath(value);
FixPathSeperator(nice);
CheckIWAD(nice, &wads[0]);
}
}
}
TArray<FString> gog_paths = I_GetGogPaths();
for (i = 0; i < gog_paths.Size(); ++i)
{
CheckIWAD (gog_paths[i], &wads[0]);
}
TArray<FString> steam_path = I_GetSteamPath();
for (i = 0; i < steam_path.Size(); ++i)
{
CheckIWAD (steam_path[i], &wads[0]);
}
}
if (iwadparm != NULL && !wads[0].Path.IsEmpty())
{
iwadparmfound = true;
}
for (i = numwads = 0; i < mIWadNames.Size(); i++)
{
if (!wads[i].Path.IsEmpty())
{
if (i != numwads)
{
wads[numwads] = wads[i];
}
foundwads[wads[numwads].Type] = numwads + 1;
numwads++;
}
}
for (unsigned i=0; i<mIWads.Size(); i++)
{
if (mIWads[i].Required.IsNotEmpty() && foundwads[i])
{
bool found = false;
// needs to be loaded with another IWAD (HexenDK)
for (unsigned j=0; j<mIWads.Size(); j++)
{
if (!mIWads[i].Required.Compare(mIWads[j].Name))
{
if (foundwads[j])
{
found = true;
mIWads[i].preload = j;
}
break;
}
}
// The required WAD is not there so this one can't be used and must be deleted from the list
if (!found)
{
size_t kill = foundwads[i];
for (size_t j = kill; j < numwads; ++j)
{
wads[j - 1] = wads[j];
}
numwads--;
foundwads[i] = 0;
for (unsigned j = 0; j < foundwads.Size(); ++j)
{
if (foundwads[j] > kill)
{
foundwads[j]--;
}
}
}
}
}
if (numwads == 0)
{
I_FatalError ("Cannot find a game IWAD (doom.wad, doom2.wad, heretic.wad, etc.).\n"
"Did you install " GAMENAME " properly? You can do either of the following:\n"
"\n"
#if defined(_WIN32)
"1. Place one or more of these wads in the same directory as " GAMENAME ".\n"
"2. Edit your " GAMENAMELOWERCASE "-username.ini and add the directories of your iwads\n"
"to the list beneath [IWADSearch.Directories]");
#elif defined(__APPLE__)
"1. Place one or more of these wads in ~/Library/Application Support/" GAMENAMELOWERCASE "/\n"
"2. Edit your ~/Library/Preferences/" GAMENAMELOWERCASE ".ini and add the directories\n"
"of your iwads to the list beneath [IWADSearch.Directories]");
#else
"1. Place one or more of these wads in ~/.config/" GAMENAMELOWERCASE "/.\n"
"2. Edit your ~/.config/" GAMENAMELOWERCASE "/" GAMENAMELOWERCASE ".ini and add the directories of your\n"
"iwads to the list beneath [IWADSearch.Directories]");
#endif
}
pickwad = 0;
if (!iwadparmfound && numwads > 1)
{
int defiwad = 0;
// Locate the user's prefered IWAD, if it was found.
if (defaultiwad[0] != '\0')
{
for (i = 0; i < numwads; ++i)
{
FString basename = ExtractFileBase(wads[i].Path);
if (stricmp(basename, defaultiwad) == 0)
{
defiwad = (int)i;
break;
}
}
}
if (!havepicked) // just use the first IWAD if the restart doesn't have a -iwad parameter. We cannot open the picker in fullscreen mode.
{
pickwad = I_PickIWad(&wads[0], (int)numwads, queryiwad, defiwad);
if (pickwad >= 0)
{
// The newly selected IWAD becomes the new default
FString basename = ExtractFileBase(wads[pickwad].Path);
defaultiwad = basename;
}
if (pickwad < 0)
exit(0);
havepicked = true;
}
}
// zdoom.pk3 must always be the first file loaded and the IWAD second.
wadfiles.Clear();
D_AddFile (wadfiles, zdoom_wad);
if (mIWads[wads[pickwad].Type].preload >= 0)
{
D_AddFile (wadfiles, wads[foundwads[mIWads[wads[pickwad].Type].preload]-1].Path);
}
D_AddFile (wadfiles, wads[pickwad].Path);
for (unsigned i=0; i < mIWads[wads[pickwad].Type].Load.Size(); i++)
{
long lastslash = wads[pickwad].Path.LastIndexOf ('/');
FString path;
if (lastslash == -1)
{
path = "";// wads[pickwad].Path;
}
else
{
path = FString (wads[pickwad].Path.GetChars(), lastslash + 1);
}
path += mIWads[wads[pickwad].Type].Load[i];
D_AddFile (wadfiles, path);
}
return wads[pickwad].Type;
}
//==========================================================================
//
// Find an IWAD to use for this game
//
//==========================================================================
const FIWADInfo *FIWadManager::FindIWAD(TArray<FString> &wadfiles, const char *iwad, const char *basewad)
{
int iwadType = IdentifyVersion(wadfiles, iwad, basewad);
//gameiwad = iwadType;
const FIWADInfo *iwad_info = &mIWads[iwadType];
if (DoomStartupInfo.Name.IsEmpty()) DoomStartupInfo.Name = iwad_info->Name;
if (DoomStartupInfo.BkColor == 0 && DoomStartupInfo.FgColor == 0)
{
DoomStartupInfo.BkColor = iwad_info->BkColor;
DoomStartupInfo.FgColor = iwad_info->FgColor;
}
I_SetIWADInfo();
return iwad_info;
}
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