did some cleanup of the FResourceFile interface.

* making all members protected (but adding friend overrides for the classes which still need it)
* allowing to read data without retrieving the FResourceLump object.

src/common/audio/music/i_soundfont.cpp

@@ -215,10 +215,10 @@ FileReader FZipPatReader::OpenFile(const char *name)
 	FileReader fr;
 	if (resf != nullptr)
 	{
-		auto lump = resf->FindLump(name);
-		if (lump != nullptr)
+		auto lump = resf->FindEntry(name);
+		if (lump >= 0)
 		{
-			return lump->NewReader();
+			return resf->GetEntryReader(lump);
 		}
 	}
 	fr.OpenFile(name);
@@ -369,8 +369,8 @@ void FSoundFontManager::ProcessOneFile(const char* fn)
 			{
 				if (zip->LumpCount() > 1)	// Anything with just one lump cannot possibly be a packed GUS patch set so skip it right away and simplify the lookup code
 				{
-					auto zipl = zip->FindLump("timidity.cfg");
-					if (zipl != nullptr)
+					auto zipl = zip->FindEntry("timidity.cfg");
+					if (zipl >= 0)
 					{
 						// It seems like this is what we are looking for
 						FSoundFontInfo sft = { fb, fbe, fn, SF_GUS };

src/common/filesystem/include/fs_files.h

@@ -4,7 +4,7 @@
 **
 **---------------------------------------------------------------------------
 ** Copyright 1998-2008 Randy Heit
-** Copyright 2005-2008 Christoph Oelckers
+** Copyright 2005-2023 Christoph Oelckers
 ** All rights reserved.
 **
 ** Redistribution and use in source and binary forms, with or without

src/common/filesystem/include/resourcefile.h

@@ -110,28 +110,47 @@ struct FCompressedBuffer
 
 struct FResourceLump
 {
+protected:
 	friend class FResourceFile;
 	friend class FWadFile;	// this still needs direct access.
+	friend class FileData;
+	friend class FileSystem;
+	friend class FLumpFile;
+	friend class FLumpReader;
+	friend class FGrpFile;
+	friend class F7ZFile;
+	friend class FSSIFile;
+	friend class FWHResFile;
+	friend class FZipFile;
+	friend class FPakFile;
+	friend class FRFFFile;
+	friend class FDirectory;
+	friend int lumpcmp(const void* a, const void* b);
+
 
 	int				LumpSize;
 	int				RefCount;
-protected:
+//protected:
 	const char*		FullName;
-public:
+//public:
 	uint8_t			Flags;
 	char *			Cache;
 	FResourceFile *	Owner;
 
+public:
 	FResourceLump()
 	{
 		Cache = NULL;
 		Owner = NULL;
 		Flags = 0;
 		RefCount = 0;
 		FullName = "";
+		LumpSize = 0;
 	}
-
 	virtual ~FResourceLump();
+
+protected:
+
 	virtual FileReader *GetReader();
 	virtual FileReader NewReader();
 	virtual int GetFileOffset() { return -1; }
@@ -186,15 +205,49 @@ class FResourceFile
 	static FResourceFile *OpenDirectory(const char *filename, LumpFilterInfo* filter = nullptr, FileSystemMessageFunc Printf = nullptr, StringPool* sp = nullptr);
 	virtual ~FResourceFile();
     // If this FResourceFile represents a directory, the Reader object is not usable so don't return it.
-    FileReader *GetReader() { return Reader.isOpen()? &Reader : nullptr; }
-	uint32_t LumpCount() const { return NumLumps; }
+	FileReader *GetContainerReader() { return Reader.isOpen()? &Reader : nullptr; }
+	[[deprecated]] uint32_t LumpCount() const { return NumLumps; }
 	uint32_t GetFirstEntry() const { return FirstLump; }
 	void SetFirstLump(uint32_t f) { FirstLump = f; }
 	const char* GetHash() const { return Hash; }
 
-
 	virtual FResourceLump *GetLump(int no) = 0;
-	FResourceLump *FindLump(const char *name);
+
+	int EntryCount() const { return NumLumps; }
+	int FindEntry(const char* name);
+
+	size_t Length(int entry)
+	{
+		auto l = GetLump(entry);
+		return l ? l->LumpSize : -1;
+	}
+
+	FileReader GetEntryReader(int entry, bool newreader = true)
+	{
+		auto l = GetLump(entry);
+		return l ? l->NewReader() : FileReader();
+
+	}
+
+	ResourceData Read(int entry)
+	{
+		auto fr = GetEntryReader(entry, false);
+		return fr.Read();
+	}
+
+	const char* getName(int entry)
+	{
+		auto l = GetLump(entry);
+		return l ? l->FullName : nullptr;
+	}
+	FCompressedBuffer GetRawData(int entry)
+	{
+		auto l = GetLump(entry);
+		if (!l) return {};
+		return l->GetRawData();
+	}
+
+
 };
 
 

src/common/filesystem/source/filesystem.cpp

@@ -1421,7 +1421,7 @@ FileReader *FileSystem::GetFileReader(int rfnum)
 		return NULL;
 	}
 
-	return Files[rfnum]->GetReader();
+	return Files[rfnum]->GetContainerReader();
 }
 
 //==========================================================================

src/common/filesystem/source/resourcefile.cpp

@@ -618,17 +618,16 @@ bool FResourceFile::FindPrefixRange(const char* filter, void *lumps, size_t lump
 //
 //==========================================================================
 
-FResourceLump *FResourceFile::FindLump(const char *name)
+int FResourceFile::FindEntry(const char *name)
 {
 	for (unsigned i = 0; i < NumLumps; i++)
 	{
-		FResourceLump *lump = GetLump(i);
-		if (!stricmp(name, lump->FullName))
+		if (!stricmp(name, getName(i)))
 		{
-			return lump;
+			return i;
 		}
 	}
-	return nullptr;
+	return -1;
 }
 
 //==========================================================================

src/common/fonts/hexfont.cpp

@@ -58,12 +58,12 @@ struct HexDataSource
 	//
 	//==========================================================================
 
-	void ParseDefinition(FileSys::FResourceLump* font)
+	void ParseDefinition(FResourceFile* resf, int index)
 	{
 		FScanner sc;
 
-		auto data = font->Lock();
-		sc.OpenMem("newconsolefont.hex", (const char*)data, font->Size());
+		auto data = resf->Read(index);
+		sc.OpenMem("newconsolefont.hex", (const char*)data.data(), data.size());
 		sc.SetCMode(true);
 		glyphdata.Push(0);	// ensure that index 0 can be used as 'not present'.
 		while (sc.GetString())
@@ -97,7 +97,6 @@ struct HexDataSource
 			lumb = i * 255 / 17;
 			SmallPal[i] = PalEntry(255, lumb, lumb, lumb);
 		}
-		font->Unlock();
 	}
 };
 
@@ -440,8 +439,8 @@ void LoadHexFont(const char* filename)
 {
 	auto resf = FResourceFile::OpenResourceFile(filename);
 	if (resf == nullptr) I_FatalError("Unable to open %s", filename);
-	auto hexfont = resf->FindLump("newconsolefont.hex");
-	if (hexfont == nullptr) I_FatalError("Unable to find newconsolefont.hex in %s", filename);
-	hexdata.ParseDefinition(hexfont);
+	auto hexfont = resf->FindEntry("newconsolefont.hex");
+	if (hexfont < 0) I_FatalError("Unable to find newconsolefont.hex in %s", filename);
+	hexdata.ParseDefinition(resf, hexfont);
 	delete resf;
 }

src/common/menu/savegamemanager.cpp

@@ -297,37 +297,26 @@ unsigned FSavegameManagerBase::ExtractSaveData(int index)
 		!node->bOldVersion &&
 		(resf = FResourceFile::OpenResourceFile(node->Filename.GetChars(), true)) != nullptr)
 	{
-		auto info = resf->FindLump("info.json");
-		if (info == nullptr)
+		auto info = resf->FindEntry("info.json");
+		if (info < 0)
 		{
 			// this should not happen because the file has already been verified.
 			return index;
 		}
 
-		void* data = info->Lock();
+		auto data = resf->Read(info);
 		FSerializer arc;
-		if (!arc.OpenReader((const char*)data, info->LumpSize))
+		if (!arc.OpenReader((const char*)data.data(), data.size()))
 		{
-			info->Unlock();
 			return index;
 		}
-		info->Unlock();
 
 		SaveCommentString = ExtractSaveComment(arc);
 
-		auto pic = resf->FindLump("savepic.png");
-		if (pic != nullptr)
+		auto pic = resf->FindEntry("savepic.png");
+		if (pic >= 0)
 		{
-			FileReader picreader;
-
-			picreader.OpenMemoryArray([=](std::vector<uint8_t> &array)
-			{
-				auto cache = pic->Lock();
-				array.resize(pic->LumpSize);
-				memcpy(&array[0], cache, pic->LumpSize);
-				pic->Unlock();
-				return true;
-			});
+			FileReader picreader = resf->GetEntryReader(pic);
 			PNGHandle *png = M_VerifyPNG(picreader);
 			if (png != nullptr)
 			{

src/g_game.cpp

@@ -2002,18 +2002,18 @@ void G_DoLoadGame ()
 		LoadGameError("TXT_COULDNOTREAD");
 		return;
 	}
-	auto info = resfile->FindLump("info.json");
-	if (info == nullptr)
+	auto info = resfile->FindEntry("info.json");
+	if (info < 0)
 	{
 		LoadGameError("TXT_NOINFOJSON");
 		return;
 	}
 
 	SaveVersion = 0;
 
-	void *data = info->Lock();
+	auto data = resfile->Read(info);
 	FSerializer arc;
-	if (!arc.OpenReader((const char *)data, info->LumpSize))
+	if (!arc.OpenReader((char*)data.data(), data.size()))
 	{
 		LoadGameError("TXT_FAILEDTOREADSG");
 		return;
@@ -2080,15 +2080,15 @@ void G_DoLoadGame ()
 	// we are done with info.json.
 	arc.Close();
 
-	info = resfile->FindLump("globals.json");
-	if (info == nullptr)
+	info = resfile->FindEntry("globals.json");
+	if (info < 0)
 	{
 		LoadGameError("TXT_NOGLOBALSJSON");
 		return;
 	}
 
-	data = info->Lock();
-	if (!arc.OpenReader((const char *)data, info->LumpSize))
+	data = resfile->Read(info);
+	if (!arc.OpenReader((char*)data.data(), data.size()))
 	{
 		LoadGameError("TXT_SGINFOERR");
 		return;

src/g_level.cpp

@@ -2004,32 +2004,28 @@ void G_ReadSnapshots(FResourceFile *resf)
 
 	G_ClearSnapshots();
 
-	for (unsigned j = 0; j < resf->LumpCount(); j++)
+	for (unsigned j = 0; j < resf->EntryCount(); j++)
 	{
-		auto resl = resf->GetLump(j);
-		if (resl != nullptr)
+		auto name = resf->getName(j);
+		auto ptr = strstr(name, ".map.json");
+		if (ptr != nullptr)
 		{
-			auto name = resl->getName();
-			auto ptr = strstr(name, ".map.json");
+			ptrdiff_t maplen = ptr - name;
+			FString mapname(name, (size_t)maplen);
+			i = FindLevelInfo(mapname.GetChars());
+			if (i != nullptr)
+			{
+				i->Snapshot = resf->GetRawData(j);
+			}
+		}
+		else
+		{
+			auto ptr = strstr(name, ".mapd.json");
 			if (ptr != nullptr)
 			{
 				ptrdiff_t maplen = ptr - name;
 				FString mapname(name, (size_t)maplen);
-				i = FindLevelInfo(mapname.GetChars());
-				if (i != nullptr)
-				{
-					i->Snapshot = resl->GetRawData();
-				}
-			}
-			else
-			{
-				auto ptr = strstr(name, ".mapd.json");
-				if (ptr != nullptr)
-				{
-					ptrdiff_t maplen = ptr - name;
-					FString mapname(name, (size_t)maplen);
-					TheDefaultLevelInfo.Snapshot = resl->GetRawData();
-				}
+				TheDefaultLevelInfo.Snapshot = resf->GetRawData(j);
 			}
 		}
 	}

src/maploader/glnodes.cpp

@@ -780,7 +780,7 @@ static int FindGLNodesInFile(FResourceFile * f, const char * label)
 
 	FString glheader;
 	bool mustcheck=false;
-	uint32_t numentries = f->LumpCount();
+	uint32_t numentries = f->EntryCount();
 
 	glheader.Format("GL_%.8s", label);
 	if (glheader.Len()>8)
@@ -793,13 +793,13 @@ static int FindGLNodesInFile(FResourceFile * f, const char * label)
 	{
 		for(uint32_t i=0;i<numentries-4;i++)
 		{
-			if (!strnicmp(f->GetLump(i)->getName(), glheader.GetChars(), 8))
+			if (!strnicmp(f->getName(i), glheader.GetChars(), 8))
 			{
 				if (mustcheck)
 				{
 					char check[16]={0};
-					auto fr = f->GetLump(i)->GetReader();
-					fr->Read(check, 16);
+					auto fr = f->GetEntryReader(i, false);
+					fr.Read(check, 16);
 					if (MatchHeader(label, check)) return i;
 				}
 				else return i;
@@ -900,13 +900,13 @@ bool MapLoader::LoadGLNodes(MapData * map)
 			result=true;
 			for(unsigned i=0; i<4;i++)
 			{
-				if (strnicmp(f_gwa->GetLump(li+i+1)->getName(), check[i], 8))
+				if (strnicmp(f_gwa->getName(li + i + 1), check[i], 8))
 				{
 					result=false;
 					break;
 				}
 				else
-					gwalumps[i] = f_gwa->GetLump(li+i+1)->NewReader();
+					gwalumps[i] = f_gwa->GetEntryReader(li + i + 1);
 			}
 			if (result) result = DoLoadGLNodes(gwalumps);
 		}