[Kernel] XLast: Added posibility to read:

- Title Name

- MatchmakingQuery
 - Input Parameters
 - Output
 - Filters (without operators)

- Localized Strings

src/xenia/emulator.cc

@@ -1185,8 +1185,8 @@ X_STATUS Emulator::CompleteLaunch(const std::filesystem::path& path,
       const uint8_t* xlast_ptr =
           db.ReadXLast(compressed_size, decompressed_size);
 
-      title_xlast_ =
-          kernel::util::XLast(xlast_ptr, compressed_size, decompressed_size);
+      title_xlast_ = std::make_unique<kernel::util::XLast>(
+          xlast_ptr, compressed_size, decompressed_size);
 
       auto icon_block = db.icon();
       if (icon_block) {

src/xenia/emulator.h

@@ -299,7 +299,7 @@ class Emulator {
   kernel::object_ref<kernel::XThread> main_thread_;
   kernel::object_ref<kernel::XHostThread> plugin_loader_thread_;
   std::optional<uint32_t> title_id_;  // Currently running title ID
-  kernel::util::XLast title_xlast_;
+  std::unique_ptr<kernel::util::XLast> title_xlast_;
 
   bool paused_;
   bool restoring_;

src/xenia/kernel/util/xlast.cc

@@ -11,12 +11,35 @@
 #include "third_party/zlib/zlib.h"
 #include "xenia/base/filesystem.h"
 #include "xenia/base/logging.h"
+#include "xenia/base/string_util.h"
 
 namespace xe {
 namespace kernel {
 namespace util {
 
-XLast::XLast() {}
+XLastMatchmakingQuery::XLastMatchmakingQuery() {}
+XLastMatchmakingQuery::XLastMatchmakingQuery(
+    const pugi::xpath_node query_node) {
+  node_ = query_node;
+}
+
+std::string XLastMatchmakingQuery::GetName() const {
+  return node_.node().attribute("friendlyName").value();
+}
+
+std::vector<uint32_t> XLastMatchmakingQuery::GetReturns() const {
+  return XLast::GetAllValuesFromNode(node_, "Returns", "id");
+}
+
+std::vector<uint32_t> XLastMatchmakingQuery::GetParameters() const {
+  return XLast::GetAllValuesFromNode(node_, "Parameters", "id");
+}
+
+std::vector<uint32_t> XLastMatchmakingQuery::GetFilters() const {
+  return XLast::GetAllValuesFromNode(node_, "Filters", "left");
+}
+
+XLast::XLast() : parsed_xlast_(nullptr) {}
 
 XLast::XLast(const uint8_t* compressed_xml_data,
              const uint32_t compressed_data_size,
@@ -26,6 +49,7 @@ XLast::XLast(const uint8_t* compressed_xml_data,
     return;
   }
 
+  parsed_xlast_ = std::make_unique<pugi::xml_document>();
   xlast_decompressed_xml_.resize(decompressed_data_size);
 
   z_stream stream;
@@ -55,17 +79,85 @@ XLast::XLast(const uint8_t* compressed_xml_data,
     return;
   }
   inflateEnd(&stream);
+
+  parse_result_ = parsed_xlast_->load_buffer(xlast_decompressed_xml_.data(),
+                                             xlast_decompressed_xml_.size());
 }
 
 XLast::~XLast() {}
 
+std::u16string XLast::GetTitleName() {
+  std::string xpath = "/XboxLiveSubmissionProject/GameConfigProject";
+
+  const pugi::xpath_node node = parsed_xlast_->select_node(xpath.c_str());
+  if (!node) {
+    return std::u16string();
+  }
+
+  return xe::to_utf16(node.node().attribute("titleName").value());
+}
+
+std::u16string XLast::GetLocalizedString(uint32_t string_id,
+                                         XLanguage language) {
+  std::string xpath = fmt::format(
+      "/XboxLiveSubmissionProject/GameConfigProject/LocalizedStrings/"
+      "LocalizedString[@id = \"{}\"]",
+      string_id);
+
+  const pugi::xpath_node node = parsed_xlast_->select_node(xpath.c_str());
+  if (!node) {
+    return std::u16string();
+  }
+
+  const std::string locale_name = GetLocaleStringFromLanguage(language);
+  const pugi::xml_node locale_node =
+      node.node().find_child_by_attribute("locale", locale_name.c_str());
+
+  if (!locale_node) {
+    return std::u16string();
+  }
+
+  return xe::to_utf16(locale_node.child_value());
+}
+
+XLastMatchmakingQuery* XLast::GetMatchmakingQuery(const uint32_t query_id) {
+  std::string xpath = fmt::format(
+      "/XboxLiveSubmissionProject/GameConfigProject/Matchmaking/Queries/"
+      "Query[@id = \"{}\"]",
+      query_id);
+
+  XLastMatchmakingQuery* query = nullptr;
+  pugi::xpath_node node = parsed_xlast_->select_node(xpath.c_str());
+  if (!node) {
+    return query;
+  }
+
+  return new XLastMatchmakingQuery(node);
+}
+
+std::vector<uint32_t> XLast::GetAllValuesFromNode(
+    const pugi::xpath_node node, const std::string child_name,
+    const std::string attirbute_name) {
+  std::vector<uint32_t> result{};
+
+  const auto searched_child = node.node().child(child_name.c_str());
+
+  for (pugi::xml_node_iterator itr = searched_child.begin();
+       itr != searched_child.end(); itr++) {
+    result.push_back(xe::string_util::from_string<uint32_t>(
+        itr->attribute(attirbute_name.c_str()).value(), true));
+  }
+
+  return result;
+}
+
 void XLast::Dump(std::string file_name) {
   if (xlast_decompressed_xml_.empty()) {
     return;
   }
 
   if (file_name.empty()) {
-    // TODO: Read default xlast name from it and use that one.
+    file_name = xe::to_utf8(GetTitleName());
   }
 
   FILE* outfile =
@@ -79,6 +171,15 @@ void XLast::Dump(std::string file_name) {
   fclose(outfile);
 }
 
+std::string XLast::GetLocaleStringFromLanguage(XLanguage language) {
+  const auto value = language_mapping.find(language);
+  if (value != language_mapping.cend()) {
+    return value->second;
+  }
+
+  return language_mapping.at(XLanguage::kEnglish);
+}
+
 }  // namespace util
 }  // namespace kernel
 }  // namespace xe

src/xenia/kernel/util/xlast.h

@@ -10,12 +10,39 @@
 #ifndef XENIA_KERNEL_UTIL_XLAST_H_
 #define XENIA_KERNEL_UTIL_XLAST_H_
 
+#include <map>
 #include <string>
 #include <vector>
 
+#include "third_party/pugixml/src/pugixml.hpp"
+#include "xenia/xbox.h"
+
 namespace xe {
 namespace kernel {
 namespace util {
+
+static const std::map<XLanguage, std::string> language_mapping = {
+    {XLanguage::kEnglish, "en-US"},    {XLanguage::kJapanese, "ja-JP"},
+    {XLanguage::kGerman, "de-DE"},     {XLanguage::kFrench, "fr-FR"},
+    {XLanguage::kSpanish, "es-ES"},    {XLanguage::kItalian, "it-IT"},
+    {XLanguage::kKorean, "ko-KR"},     {XLanguage::kTChinese, "zh-CHT"},
+    {XLanguage::kPortuguese, "pt-PT"}, {XLanguage::kPolish, "pl-PL"},
+    {XLanguage::kRussian, "ru-RU"}};
+
+class XLastMatchmakingQuery {
+ public:
+  XLastMatchmakingQuery();
+  XLastMatchmakingQuery(const pugi::xpath_node query_node);
+
+  std::string GetName() const;
+  std::vector<uint32_t> GetReturns() const;
+  std::vector<uint32_t> GetParameters() const;
+  std::vector<uint32_t> GetFilters() const;
+
+ private:
+  pugi::xpath_node node_;
+};
+
 class XLast {
  public:
   XLast();
@@ -23,10 +50,21 @@ class XLast {
         const uint32_t decompressed_data_size);
   ~XLast();
 
+  std::u16string GetTitleName();
+  std::u16string GetLocalizedString(uint32_t string_id, XLanguage language);
+  XLastMatchmakingQuery* GetMatchmakingQuery(uint32_t query_id);
+  static std::vector<uint32_t> GetAllValuesFromNode(
+      const pugi::xpath_node node, const std::string child_name,
+      const std::string attirbute_name);
+
   void Dump(std::string file_name);
 
  private:
+  std::string GetLocaleStringFromLanguage(XLanguage language);
+
   std::vector<uint8_t> xlast_decompressed_xml_;
+  std::unique_ptr<pugi::xml_document> parsed_xlast_ = nullptr;
+  pugi::xml_parse_result parse_result_ = {};
 };
 
 }  // namespace util