Try to optimize things a bit

PakReader won't read everything in ReadData(), it now only reads the header and TOC.

Files now need to be read in separately.

Adds progress bar to europa_pack_extractor.

Moved code around.

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "third_party/libpixel"]
 	path = third_party/libpixel
 	url = https://github.com/modeco80/libpixel.git
+[submodule "third_party/indicators"]
+	path = third_party/indicators
+	url = https://github.com/p-ranav/indicators

CMakeLists.txt

@@ -10,6 +10,7 @@ include(cmake/Policies.cmake)
 project(EuropaTools)
 
 add_subdirectory(third_party/libpixel)
+add_subdirectory(third_party/indicators)
 
 add_subdirectory(src/libeuropa)
 add_subdirectory(src/tools)

README.md

@@ -10,9 +10,9 @@ Provides archive IO utilities and the structures.
 
 ## The Tools
 
-### `europa_pak_extractor`
+### `eupak`
 
-Extractor for .pak and .pmdl (they use 1:1 the same format) files. 
+Swiss army knife for Europa packfiles.
 
-TODO: this will be one `eupak` utility later, probably.
+Can create, extract, and show info on them.
 

hexpat/pak.hexpat

@@ -7,6 +7,8 @@
 //
 
 #pragma endian little
+// Big archives need a big pattern limit
+#pragma max_patterns 0x40000
 
 namespace europa {
 
@@ -56,7 +58,7 @@ namespace europa {
 
 	struct PakFile {
 		PakHeader header;
-		//PakTocEntry toc[header.fileCount] @ header.tocOffset;
+		PakTocEntry toc[header.fileCount] @ header.tocOffset;
 	};
 
 } // namespace europa

include/europa/io/PakFile.h

@@ -9,18 +9,17 @@
 #ifndef EUROPA_IO_PAKFILE_H
 #define EUROPA_IO_PAKFILE_H
 
-#include <vector>
-#include <cstdint>
-
 #include <europa/structs/Pak.h>
 
+#include <cstdint>
+#include <vector>
+
 namespace europa::io {
 
 	struct PakReader;
 	struct PakWriter;
 
 	struct PakFile {
-
 		using DataType = std::vector<std::uint8_t>;
 
 		/**
@@ -43,13 +42,10 @@ namespace europa::io {
 		friend PakReader;
 		friend PakWriter;
 
-
 		std::vector<std::uint8_t> data;
 		structs::PakTocEntry tocData;
 	};
 
+} // namespace europa::io
 
-}
+#endif // EUROPA_IO_PAKFILE_H
-
-
-#endif //EUROPA_IO_PAKFILE_H

include/europa/io/PakReader.h

@@ -10,7 +10,6 @@
 #define EUROPA_IO_PAKREADER_H
 
 #include <europa/io/PakFile.h>
-
 #include <europa/structs/Pak.h>
 
 #include <iosfwd>
@@ -20,16 +19,25 @@
 namespace europa::io {
 
 	struct PakReader {
+		using MapType = std::unordered_map<std::string, PakFile>;
 
 		explicit PakReader(std::istream& is);
 
 		void ReadData();
 
+		void ReadFiles();
+
+		/**
+		 * Read in a specific file.
+		 */
+		void ReadFile(const std::string& file);
+
 		bool Invalid() const {
 			return invalid;
 		}
 
-		const std::unordered_map<std::string, PakFile>& GetFiles() const;
+		MapType& GetFiles();
+		const MapType& GetFiles() const;
 
 	   private:
 		std::istream& stream;
@@ -37,7 +45,7 @@ namespace europa::io {
 
 		structs::PakHeader header {};
 
-		std::unordered_map<std::string, PakFile> files;
+		MapType files;
 	};
 
 } // namespace europa::io

include/europa/io/PakWriter.h

@@ -9,12 +9,9 @@
 #ifndef EUROPA_IO_PAKWRITER_H
 #define EUROPA_IO_PAKWRITER_H
 
-
 #include <europa/io/PakFile.h>
 
 #include <iosfwd>
-
-
 #include <string>
 #include <unordered_map>
 
@@ -24,12 +21,9 @@ namespace europa::io {
 	 * Writer for package files.
 	 */
 	struct PakWriter {
+		void Init(structs::PakVersion version);
 
-        void Init();
+		std::unordered_map<std::string, PakFile>& GetFiles();
-
-        void AddFile(const std::string& path, const PakFile& data);
-
-        void RemoveFile(const std::string& path);
 
 		/**
 		 * Write the resulting archive to the given output stream.
@@ -37,11 +31,10 @@ namespace europa::io {
 		void Write(std::ostream& os);
 
 	   private:
-        structs::PakHeader pakHeader{};
+		structs::PakHeader pakHeader {};
 		std::unordered_map<std::string, PakFile> archiveFiles;
 	};
 
-
+} // namespace europa::io
-}
 
 #endif // EUROPA_IO_PAKWRITER_H

include/europa/structs/Pak.h

@@ -53,20 +53,47 @@ namespace europa::structs {
 			return sizeof(magic) + static_cast<std::size_t>(headerSize);
 		}
 
-        void Init(PakVersion ver) {
+		/**
+		 * Initialize this header (used when writing).
+		 */
+		void Init(PakVersion ver) noexcept {
 			// clear any junk
 			memset(this, 0, sizeof(PakHeader));
 
 			// Copy important things.
 			std::memcpy(&magic[0], &VALID_MAGIC[0], sizeof(VALID_MAGIC));
+
+			// Set proper header size.
 			headerSize = sizeof(PakHeader) - (sizeof(PakHeader::VALID_MAGIC) - 1);
 
 			// Set archive version
 			version = ver;
 		}
+
+		[[nodiscard]] bool Valid() const noexcept {
+			// Magic must match.
+			if(std::strcmp(magic, VALID_MAGIC) != 0)
+				return false;
+
+			using enum PakVersion;
+
+			// Version must match ones we support,
+			// otherwise it's invalid.
+			switch(version) {
+				case Starfighter:
+				case Ver2:
+					break;
+
+				default:
+					return false;
+			}
+
+			// Header is okay.
+			return true;
+		}
 	};
 
-	// A Toc entry (without string. Needs to be read in seperately)
+	// A Toc entry (without string. Needs to be read in separately)
 	struct [[gnu::packed]] PakTocEntry {
 		u32 offset;
 		u32 size;
@@ -77,7 +104,7 @@ namespace europa::structs {
 	};
 
 	static_assert(sizeof(PakHeader) == 0x29, "PakHeader wrong size!!");
-    static_assert(sizeof(PakHeader) - (sizeof(PakHeader::VALID_MAGIC) - 1) == 0x1a, "PakHeader::headerSize will be invalid");
+	static_assert(sizeof(PakHeader) - (sizeof(PakHeader::VALID_MAGIC) - 1) == 0x1a, "PakHeader::headerSize will be invalid when writing archives.");
 	static_assert(sizeof(PakTocEntry) == 0xc, "PakTocEntry wrong size!");
 
 } // namespace europa::structs

include/europa/util/FixedString.h

@@ -16,12 +16,12 @@ namespace europa::util {
 	/**
 	 * A compile-time string. Usable as a C++20 cNTTP.
 	 */
-	template<std::size_t N>
+	template <std::size_t N>
 	struct FixedString {
-		char buf[N + 1]{};
+		char buf[N + 1] {};
 
 		constexpr FixedString(const char* s) { // NOLINT
-			for (unsigned i = 0; i != N; ++i)
+			for(unsigned i = 0; i != N; ++i)
 				buf[i] = s[i];
 		}
 
@@ -34,9 +34,9 @@ namespace europa::util {
 		}
 	};
 
-	template<std::size_t N>
+	template <std::size_t N>
 	FixedString(char const (&)[N]) -> FixedString<N - 1>;
 
-}
+} // namespace europa::util
 
 #endif // EUROPA_UTIL_FIXEDSTRING_H

include/europa/util/FourCC.h

@@ -9,17 +9,17 @@
 #ifndef EUROPA_FOURCC_H
 #define EUROPA_FOURCC_H
 
-#include <bit>
-
 #include <europa/util/FixedString.h>
 
+#include <bit>
+
 namespace europa::util {
 
 	/**
 	 * A multi-endian, compile-time FourCC generator.
 	 * You love to see it.
 	 */
-	template<FixedString fccString, std::endian Endian = std::endian::little>
+	template <FixedString fccString, std::endian Endian = std::endian::little>
 	consteval std::uint32_t FourCC() {
 		static_assert(fccString.Length() == 4, "Provided string is not a FourCC");
 
@@ -36,6 +36,6 @@ namespace europa::util {
 		return 0xffffffff;
 	}
 
-}
+} // namespace europa::util
 
 #endif // EUROPA_FOURCC_H

src/libeuropa/CMakeLists.txt

@@ -23,4 +23,4 @@ set_target_properties(libeuropa PROPERTIES
 # Projects which libeuropa depends on
 target_link_libraries(libeuropa PUBLIC
 		pixel::libpixel
-)
+		)

src/libeuropa/io/PakFile.cpp

@@ -18,7 +18,6 @@ namespace europa::io {
 		return tocData;
 	}
 
-
 	structs::PakTocEntry& PakFile::GetTOCEntry() {
 		return tocData;
 	}
@@ -31,4 +30,4 @@ namespace europa::io {
 		tocData.size = static_cast<std::uint32_t>(data.size());
 	}
 
-}
+} // namespace europa::io

src/libeuropa/io/PakReader.cpp

@@ -20,57 +20,51 @@ namespace europa::io {
 	}
 
 	void PakReader::ReadData() {
-		auto ReadHeader = [&]() {
 		header = impl::ReadStreamType<structs::PakHeader>(stream);
-		};
 
-		auto ReadTocEntry = [&]() {
+		if(!header.Valid()) {
+			invalid = true;
+			return;
+		}
+
+		// Read the archive TOC
+		stream.seekg(header.tocOffset, std::istream::beg);
+		for(auto i = 0; i < header.fileCount; ++i) {
 			// The first part of the TOC entry is a VLE string,
 			// which we don't store inside the type (because we can't)
 			//
 			// Read this in first.
 			auto filename = impl::ReadPString(stream);
-
 			files[filename].GetTOCEntry() = impl::ReadStreamType<structs::PakTocEntry>(stream);
-		};
+		}
-
-		ReadHeader();
-
-		// Validate the archive header
-		if(std::strcmp(header.magic, structs::PakHeader::VALID_MAGIC) != 0) {
-			invalid = true;
-			return;
 	}
 
-		switch(header.version) {
+	void PakReader::ReadFiles() {
-			case structs::PakVersion::Starfighter:
+		for(auto& [filename, file] : files)
-			case structs::PakVersion::Ver2:
+			ReadFile(filename);
-				break;
-
-			default:
-				invalid = true;
-				return;
 	}
 
-		stream.seekg(header.tocOffset, std::istream::beg);
+	void PakReader::ReadFile(const std::string& file) {
+		auto& fileObject = files[file];
 
-		// Read the archive TOC
+		// This file was already read in, or has data
-		for(auto i = 0; i < header.fileCount; ++i)
+		// the user may not want to overwrite.
-			ReadTocEntry();
+		if(!fileObject.data.empty())
+			return;
 
-		// Read all file data in
+		auto& toc = fileObject.GetTOCEntry();
-		for(auto& [filename, file] : files) {
+		fileObject.data.resize(toc.size);
-			auto& toc = file.GetTOCEntry();
-			file.data.resize(toc.size);
 
 		stream.seekg(toc.offset, std::istream::beg);
-			stream.read(reinterpret_cast<char*>(&file.data[0]), toc.size);
+		stream.read(reinterpret_cast<char*>(&fileObject.data[0]), toc.size);
-		}
 	}
 
-	const std::unordered_map<std::string, PakFile>& PakReader::GetFiles() const {
+	PakReader::MapType& PakReader::GetFiles() {
 		return files;
 	}
 
+	const PakReader::MapType& PakReader::GetFiles() const {
+		return files;
+	}
 
 } // namespace europa::io

src/libeuropa/io/PakWriter.cpp

@@ -7,48 +7,50 @@
 //
 
 #include <europa/io/PakWriter.h>
+
 #include <iostream>
 
 #include "StreamUtils.h"
 
 namespace europa::io {
 
-
+	void PakWriter::Init(structs::PakVersion version) {
-    void PakWriter::Init() {
 		// for now.
-        pakHeader.Init(structs::PakVersion::Starfighter);
+		pakHeader.Init(version);
 	}
 
-    void PakWriter::AddFile(const std::string &path, const PakFile& data) {
+	std::unordered_map<std::string, PakFile>& PakWriter::GetFiles() {
-        archiveFiles[path] = data;
+		return archiveFiles;
 	}
 
-    void PakWriter::RemoveFile(const std::string &path) {
+	void PakWriter::Write(std::ostream& os) {
-        archiveFiles.erase(path);
-    }
-
-    void PakWriter::Write(std::ostream &os) {
 		// Set up the header a bit more...
 		pakHeader.fileCount = archiveFiles.size();
 
 		// Leave space for the header
 		os.seekp(sizeof(structs::PakHeader), std::ostream::beg);
 
+		// Seek forwards for version 2 PAKs, as the only
+		// difference seems to be
+		if(pakHeader.version == structs::PakVersion::Ver2) {
+			os.seekp(6, std::ostream::cur);
+		}
+
 		// Write file data
-        for (auto &[filename, file]: archiveFiles) {
+		for(auto& [filename, file] : archiveFiles) {
 			file.GetTOCEntry().offset = os.tellp();
-            os.write(reinterpret_cast<const char *>(file.GetData().data()), file.GetData().size());
+			os.write(reinterpret_cast<const char*>(file.GetData().data()), file.GetData().size());
 		}
 
 		pakHeader.tocOffset = os.tellp();
 
 		// Write the TOC
-        for (auto &[filename, file]: archiveFiles) {
+		for(auto& [filename, file] : archiveFiles) {
 			file.FillTOCEntry();
 
 			// Write the pstring
 			os.put(static_cast<char>(filename.length() + 1));
-            for (const auto c: filename)
+			for(const auto c : filename)
 				os.put(c);
 			os.put('\0');
 
@@ -59,4 +61,4 @@ namespace europa::io {
 		impl::WriteStreamType(os, pakHeader);
 	}
 
-}
+} // namespace europa::io

src/libeuropa/io/StreamUtils.cpp

@@ -19,7 +19,6 @@ namespace europa::io::impl {
 			is.read(&buffer[0], size);
 		}
 
-
 		void WriteStreamTypeImpl(std::ostream& os, const char* buffer, std::size_t buffer_size) {
 			os.write(&buffer[0], buffer_size);
 		}

src/libeuropa/io/StreamUtils.h

@@ -17,7 +17,7 @@ namespace europa::io::impl {
 	namespace detail {
 		void ReadStreamTypeImpl(std::istream& is, char* buffer, std::size_t size);
 		void WriteStreamTypeImpl(std::ostream& os, const char* buffer, std::size_t buffer_size);
-	}
+	} // namespace detail
 
 	// This is lame. But it works :)
 	template <class T>

src/libeuropa/io/YatfReader.cpp

@@ -7,10 +7,11 @@
 //
 
 #include <europa/io/YatfReader.h>
-#include "StreamUtils.h"
 
 #include <vector>
 
+#include "StreamUtils.h"
+
 namespace europa::io {
 
 	YatfReader::YatfReader(std::istream& is)
@@ -56,6 +57,4 @@ namespace europa::io {
 		return header;
 	}
 
-
+} // namespace europa::io
-
-}

src/tools/CMakeLists.txt

@@ -1,6 +1,8 @@
 add_executable(europa_pack_extractor europa_pack_extractor.cpp)
 
-target_link_libraries(europa_pack_extractor PUBLIC libeuropa)
+target_link_libraries(europa_pack_extractor PUBLIC libeuropa
+		indicators::indicators
+		)
 
 set_target_properties(europa_pack_extractor PROPERTIES
 		CXX_STANDARD 20

src/tools/europa_pack_extractor.cpp

@@ -10,6 +10,8 @@
 
 #include <filesystem>
 #include <fstream>
+#include <indicators/cursor_control.hpp>
+#include <indicators/progress_bar.hpp>
 #include <iostream>
 
 namespace fs = std::filesystem;
@@ -38,6 +40,19 @@ int main(int argc, char** argv) {
 		return 1;
 	}
 
+	indicators::ProgressBar progress {
+		indicators::option::BarWidth { 50 },
+		indicators::option::ForegroundColor { indicators::Color::green },
+		indicators::option::MaxProgress { reader.GetFiles().size() },
+		indicators::option::ShowPercentage { true },
+		indicators::option::ShowElapsedTime { true },
+		indicators::option::ShowRemainingTime { true },
+
+		indicators::option::PrefixText { "Extracting archive " }
+	};
+
+	indicators::show_console_cursor(false);
+
 	for(auto& [filename, file] : reader.GetFiles()) {
 		auto nameCopy = filename;
 
@@ -50,11 +65,15 @@ int main(int argc, char** argv) {
 		}
 #endif
 
+		progress.set_option(indicators::option::PostfixText { filename });
+
 		auto outpath = (baseDirectory / nameCopy);
 
 		if(!fs::exists(outpath.parent_path()))
 			fs::create_directories(outpath.parent_path());
 
+		reader.ReadFile(filename);
+
 		std::ofstream ofs(outpath.string(), std::ofstream::binary);
 
 		if(!ofs) {
@@ -63,10 +82,9 @@ int main(int argc, char** argv) {
 		}
 
 		ofs.write(reinterpret_cast<const char*>(file.GetData().data()), static_cast<std::streampos>(file.GetTOCEntry().size));
-		ofs.close();
+		progress.tick();
-
-		std::cout << "Wrote \"" << outpath.string() << "\" to disk.\n";
 	}
 
+	indicators::show_console_cursor(true);
 	return 0;
 }

src/tools/paktest.cpp

@@ -11,8 +11,8 @@
 #include <europa/io/PakReader.h>
 #include <europa/io/PakWriter.h>
 
-#include <iostream>
 #include <fstream>
+#include <iostream>
 
 int main(int argc, char** argv) {
 	std::ifstream ifs(argv[1], std::ifstream::binary);
@@ -20,7 +20,7 @@ int main(int argc, char** argv) {
 
 	europa::io::PakWriter writer;
 
-    writer.Init();
+	writer.Init(europa::structs::PakVersion::Ver2);
 
 	// Read pak data and vomit it into the writer.
 	// This will temporarily consume 2x the memory (so about 240mb for the biggest paks I've seen),
@@ -30,7 +30,7 @@ int main(int argc, char** argv) {
 		europa::io::PakReader reader(ifs);
 		reader.ReadData();
 
-        for (auto &[filename, file]: reader.GetFiles()) {
+		for(auto& [filename, file] : reader.GetFiles()) {
 			writer.AddFile(filename, file);
 		}
 	}