correct error with bolt structures, now reading file data (need compression though)

lib/structs/BoltStructs.hpp

@@ -48,6 +48,9 @@ namespace lightningbolt {
 		u32 groupSize;
 		u32 groupOffset;
 
+        // PS2 pointer padding; bolt library stuffs something here
+        u32 pad;
+
 		u32 EntryCount() {
 			// Special case: 0x0 == 256 entries.
 			// I have NO idea why they did it like this,
@@ -58,7 +61,7 @@ namespace lightningbolt {
 			return entryCount;
 		}
 
-		std::span<BoltGroupEntry> Entries(u8* base) { return { std::bit_cast<BoltGroupEntry*>(base + groupOffset), EntryCount() }; }
+		std::span<BoltGroupEntry> Entries(u8* base) { return { std::bit_cast<BoltGroupEntry*>(&base[groupOffset]), EntryCount() }; }
 	};
 
 	struct [[gnu::packed]] BoltLibraryHeader {

src/main.cpp

@@ -1,18 +1,19 @@
 #include <base/MmapFile.hpp>
 #include <filesystem>
+#include <format>
+#include <iostream>
 #include <structs/BoltStructs.hpp>
 #include <vector>
-#include <format>
-
-#include <iostream>
-
-struct ParsedTableEntry {
-	std::string_view filename;
-	u16 index;
-	u32 gid;
-};
 
 struct BoltReader {
+	struct ParsedTableEntry {
+		std::string_view filename;
+		u16 index;
+		u16 gid;
+
+		std::span<u8> uncompressedData;
+	};
+
 	BoltReader() {}
 
 	ErrorOr<void> OpenBolt(const lightningbolt::fs::path& path) {
@@ -29,6 +30,7 @@ struct BoltReader {
 		if(auto error = boltFile.Open(path); error.HasError())
 			return error;
 
+		lib = std::bit_cast<lightningbolt::BoltLibraryHeader*>(boltFile.GetMapping());
 		return {};
 	}
 
@@ -47,27 +49,45 @@ struct BoltReader {
 				if(te.filename == "")
 					break;
 
-				std::cout << std::format("te: {} {:04x} {:04x}\n", te.filename, te.index, te.gid);
+				// std::cout << std::format("te: {} {:04x} {:04x}\n", te.filename, te.index, te.gid);
 				entryTable.emplace_back(te);
 
 				table++;
 			}
-
-			// The ELF file isn't needed after this so unmap it
-			elfFile.Close();
 		}
 		return entryTable;
 	}
 
-	template<class F>
+	template <class F>
 	void ForEachFile(F f) {
-		//for()()
+		for(auto& file : entryTable) {
+			if(file.uncompressedData.empty()) {
+				auto gid = (file.gid >> 8);
+				auto entries = lib->GroupDescriptors()[gid].Entries(boltFile.GetMapping());
+
+				// std::cout << std::format("ptr: {} {:08x}\n", (void*)entries.data(), (u32)(std::bit_cast<usize>(entries.data()) - (usize)lib));
+
+				auto size = entries[file.index & 0x00ff].fileSize;
+				auto offset = entries[file.index & 0x00ff].fileOffset;
+
+				file.uncompressedData = { std::bit_cast<u8*>(boltFile.GetMapping() + offset), size };
+
+				// for(i32 i = 0; i < entries.size(); ++i) {
+				//	std::cout << std::format("dick {}: {:08x}\n", i, entries[i].fileOffset);
+				// }
+			}
+
+			if(!f(file))
+				break;
+		}
 	}
 
    private:
 	std::vector<ParsedTableEntry> entryTable;
 	lightningbolt::MmapFile elfFile;
 	lightningbolt::MmapFile boltFile;
+
+	lightningbolt::BoltLibraryHeader* lib;
 };
 
 int main() {
@@ -76,5 +96,11 @@ int main() {
 		std::cout << "Error opening Bolt file: " << error.Error();
 	}
 
+	reader.ForEachFile([](BoltReader::ParsedTableEntry& ent) {
+		std::cout << std::format("File: {} magic: ", ent.filename) << ent.uncompressedData[0] << ent.uncompressedData[1] << ent.uncompressedData[2]
+				  << ent.uncompressedData[3] << '\n';
+		return true;
+	});
+
 	return 0;
 }