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");
}
}
unsigned FSavegameManager::ExtractSaveData(int index)
{
FResourceFile *resf;
FSaveGameNode *node;
if (index == -1)
{
if (SaveGames.Size() > 0 && SaveGames[0]->bNoDelete)
{
index = LastSaved + 1;
}
else
{
index = LastAccessed < 0? 0 : LastAccessed;
}
}
UnloadSaveData();
if ((unsigned)index < SaveGames.Size() &&
(node = SaveGames[index]) &&
!node->Filename.IsEmpty() &&
!node->bOldVersion &&
(resf = FResourceFile::OpenResourceFile(node->Filename.GetChars(), true)) != nullptr)
{
FResourceLump *info = resf->FindLump("info.json");
if (info == nullptr)
{
// this should not happen because the file has already been verified.
return index;
}
void *data = info->CacheLump();
FSerializer arc(nullptr);
if (arc.OpenReader((const char *)data, info->LumpSize))
{
FString comment;
FString time = arc.GetString("Creation Time");
FString pcomment = arc.GetString("Comment");
comment = time;
if (time.Len() > 0) comment += "\n";
comment += pcomment;
SaveCommentString = comment;
// Extract pic
FResourceLump *pic = resf->FindLump("savepic.png");
if (pic != nullptr)
{
FileReader picreader;
picreader.OpenMemoryArray([=](TArray<uint8_t> &array)
{
auto cache = pic->CacheLump();
array.Resize(pic->LumpSize);
memcpy(&array[0], cache, pic->LumpSize);
pic->ReleaseCache();
return true;
});
PNGHandle *png = M_VerifyPNG(picreader);
if (png != nullptr)
{
SavePic = PNGTexture_CreateFromFile(png, node->Filename);
delete png;
if (SavePic && SavePic->GetDisplayWidth() == 1 && SavePic->GetDisplayHeight() == 1)
{
delete SavePic;
SavePic = nullptr;
SavePicData.Clear();
}
}
}
}
delete resf;
}
return index;
}
void FSavegameManager::ReadSaveStrings()
{
if (SaveGames.Size() == 0)
{
void *filefirst;
findstate_t c_file;
FString filter;
LastSaved = LastAccessed = -1;
quickSaveSlot = nullptr;
filter = G_BuildSaveName("*." SAVEGAME_EXT, -1);
filefirst = I_FindFirst(filter.GetChars(), &c_file);
if (filefirst != ((void *)(-1)))
{
do
{
// I_FindName only returns the file's name and not its full path
FString filepath = G_BuildSaveName(I_FindName(&c_file), -1);
FResourceFile *savegame = FResourceFile::OpenResourceFile(filepath, true, true);
if (savegame != nullptr)
{
bool oldVer = false;
bool missing = false;
FResourceLump *info = savegame->FindLump("info.json");
if (info == nullptr)
{
// savegame info not found. This is not a savegame so leave it alone.
delete savegame;
continue;
}
void *data = info->CacheLump();
FSerializer arc(nullptr);
if (arc.OpenReader((const char *)data, info->LumpSize))
{
int savever = 0;
arc("Save Version", savever);
FString engine = arc.GetString("Engine");
FString iwad = arc.GetString("Game WAD");
FString title = arc.GetString("Title");
if (engine.Compare(GAMESIG) != 0 || savever > SAVEVER)
{
// different engine or newer version:
// not our business. Leave it alone.
delete savegame;
continue;
}
if (savever < MINSAVEVER)
{
// old, incompatible savegame. List as not usable.
oldVer = true;
}
else if (iwad.CompareNoCase(Wads.GetWadName(Wads.GetIwadNum())) == 0)
{
missing = !G_CheckSaveGameWads(arc, false);
}
else
{
// different game. Skip this.
delete savegame;
continue;
}
FSaveGameNode *node = new FSaveGameNode;
node->Filename = filepath;
node->bOldVersion = oldVer;
node->bMissingWads = missing;
node->SaveTitle = title;
InsertSaveNode(node);
delete savegame;
}
}
else // check for old formats.
{
FileReader file;
if (file.OpenFile(filepath))
{
PNGHandle *png;
char sig[16];
char title[OLDSAVESTRINGSIZE + 1];
bool oldVer = true;
bool addIt = false;
bool missing = false;
// ZDoom 1.23 betas 21-33 have the savesig first.
// Earlier versions have the savesig second.
// Later versions have the savegame encapsulated inside a PNG.
//
// Old savegame versions are always added to the menu so
// the user can easily delete them if desired.
title[OLDSAVESTRINGSIZE] = 0;
if (nullptr != (png = M_VerifyPNG(file)))
{
char *ver = M_GetPNGText(png, "ZDoom Save Version");
if (ver != nullptr)
{
// An old version
if (!M_GetPNGText(png, "Title", title, OLDSAVESTRINGSIZE))
{
strncpy(title, I_FindName(&c_file), OLDSAVESTRINGSIZE);
}
addIt = true;
delete[] ver;
}
delete png;
}
else
{
file.Seek(0, FileReader::SeekSet);
if (file.Read(sig, 16) == 16)
{
if (strncmp(sig, "ZDOOMSAVE", 9) == 0)
{
if (file.Read(title, OLDSAVESTRINGSIZE) == OLDSAVESTRINGSIZE)
{
addIt = true;
}
}
else
{
memcpy(title, sig, 16);
if (file.Read(title + 16, OLDSAVESTRINGSIZE - 16) == OLDSAVESTRINGSIZE - 16 &&
file.Read(sig, 16) == 16 &&
strncmp(sig, "ZDOOMSAVE", 9) == 0)
{
addIt = true;
}
}
}
}
if (addIt)
{
FSaveGameNode *node = new FSaveGameNode;
node->Filename = filepath;
node->bOldVersion = true;
node->bMissingWads = false;
node->SaveTitle = title;
InsertSaveNode(node);
}
}
}
} while (I_FindNext(filefirst, &c_file) == 0);
I_FindClose(filefirst);
}
}
}
