[XAM/INFO] - Implement multiple functions

- Implement XamIsSystemExperienceTitleId, XamIsSystemTitleId, XamIsXbox1TitleId
- Replaced is_title_system_type
- Changed XamIsCurrentTitleDash
- Reduced magic numbers

src/xenia/kernel/title_id_utils.h

@@ -0,0 +1,101 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2025 Xenia Canary. All rights reserved.                          *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_KERNEL_UTIL_TITLE_ID_UTILS_H_
+#define XENIA_KERNEL_UTIL_TITLE_ID_UTILS_H_
+
+#include <cstdint>
+#include <utility>
+
+namespace xe {
+namespace kernel {
+
+static constexpr uint32_t kXN_2001 = 0x584E07D1;
+static constexpr uint32_t kXN_2002 = 0x584E07D2;
+static constexpr uint32_t kDashboardID = 0xFFFE07D1;
+
+static constexpr uint16_t GetGameId(const uint32_t title_id) {
+  return title_id >> 16;
+}
+
+static constexpr bool IsValidGameId(const uint32_t title_id) {
+  return (title_id >> 16) != 0xFFFE;
+}
+
+static constexpr std::pair<char, char> GetTitlePublisher(
+    const uint32_t title_id) {
+  const char first_char = title_id >> 24;
+  const char second_char = (title_id >> 16) & 0xFF;
+
+  return {first_char, second_char};
+}
+
+static constexpr bool IsXboxTitle(const uint32_t title_id) {
+  const auto publisher = GetTitlePublisher(title_id);
+
+  return publisher.first == 'X';
+}
+
+static constexpr bool IsXblaTitle(const uint32_t title_id) {
+  const auto publisher = GetTitlePublisher(title_id);
+
+  return publisher.first == 'X' && publisher.second == 'A';
+}
+
+static constexpr bool IsAppTitle(const uint32_t title_id) {
+  const auto publisher = GetTitlePublisher(title_id);
+
+  return publisher.first == 'X' && publisher.second == 'H' ||
+         publisher.first == 'X' && publisher.second == 'H';
+}
+
+static constexpr bool IsXNTitle(const uint32_t title_id) {
+  return title_id == kXN_2001 || title_id == kXN_2002;
+}
+
+static constexpr bool IsSystemExperienceTitle(const uint32_t title_id) {
+  if (IsAppTitle(title_id)) {
+    return true;
+  }
+
+  return IsXNTitle(title_id);
+};
+
+static constexpr bool IsSystemTitle(const uint32_t title_id) {
+  if (!title_id) {
+    return true;
+  }
+
+  if (!IsXboxTitle(title_id)) {
+    return IsValidGameId(title_id);
+  }
+
+  if (IsXblaTitle(title_id)) {
+    return IsValidGameId(title_id);
+  }
+
+  return true;
+};
+
+static constexpr bool IsOriginalXboxTitle(const uint32_t title_id) {
+  if (!IsValidGameId(title_id)) {
+    return true;
+  }
+
+  if (!title_id || (title_id >> 24) == 0xFF) {
+    return false;
+  }
+
+  return (title_id >> 17) < 0x7D0;
+};
+
+}  // namespace kernel
+}  // namespace xe
+
+#endif