[Kernel] Added Property class and storing them for user

src/xenia/kernel/util/property.cc

@@ -0,0 +1,130 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2024 Xenia Canary. All rights reserved.                          *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include "xenia/kernel/util/property.h"
+#include "xenia/base/logging.h"
+
+namespace xe {
+namespace kernel {
+
+Property::Property(uint32_t property_id, uint32_t value_size,
+                   uint8_t* value_ptr) {
+  property_id_.value = property_id;
+  data_type_ = static_cast<X_USER_DATA_TYPE>(property_id_.type);
+
+  value_size_ = value_size;
+  value_.resize(value_size);
+
+  if (value_ptr != 0) {
+    memcpy(value_.data(), value_ptr, value_size);
+  } else {
+    XELOGW("{} Ctor: provided value_ptr is nullptr!", __func__);
+  }
+}
+
+Property::Property(const uint8_t* serialized_data, size_t data_size) {
+  if (data_size < 8) {
+    XELOGW("Property::Property lacks information. Skipping!");
+    return;
+  }
+
+  memcpy(&property_id_, serialized_data, sizeof(property_id_));
+  data_type_ = static_cast<X_USER_DATA_TYPE>(property_id_.type);
+
+  memcpy(&value_size_, serialized_data + 4, sizeof(value_size_));
+
+  value_.resize(value_size_);
+  memcpy(value_.data(), serialized_data + 8, value_size_);
+}
+
+Property::~Property() {};
+
+std::vector<uint8_t> Property::Serialize() const {
+  std::vector<uint8_t> serialized_property;
+  serialized_property.resize(sizeof(property_id_) + sizeof(value_size_) +
+                             value_.size());
+
+  size_t offset = 0;
+  memcpy(serialized_property.data(), &property_id_, sizeof(property_id_));
+  offset += sizeof(property_id_);
+
+  memcpy(serialized_property.data() + offset, &value_size_,
+         sizeof(value_size_));
+
+  offset += sizeof(value_size_);
+
+  memcpy(serialized_property.data() + offset, value_.data(), value_.size());
+
+  return serialized_property;
+}
+
+void Property::Write(Memory* memory, XUSER_PROPERTY* property) const {
+  property->property_id = property_id_.value;
+  property->data.type = data_type_;
+
+  switch (data_type_) {
+    case X_USER_DATA_TYPE::WSTRING:
+      property->data.binary.size = value_size_;
+      break;
+    case X_USER_DATA_TYPE::CONTENT:
+    case X_USER_DATA_TYPE::BINARY:
+      property->data.binary.size = value_size_;
+      // Property pointer must be valid at this point!
+      memcpy(memory->TranslateVirtual(property->data.binary.ptr), value_.data(),
+             value_size_);
+      break;
+    case X_USER_DATA_TYPE::INT32:
+      memcpy(reinterpret_cast<uint8_t*>(&property->data.s32), value_.data(),
+             value_size_);
+      break;
+    case X_USER_DATA_TYPE::INT64:
+      memcpy(reinterpret_cast<uint8_t*>(&property->data.s64), value_.data(),
+             value_size_);
+      break;
+    case X_USER_DATA_TYPE::DOUBLE:
+      memcpy(reinterpret_cast<uint8_t*>(&property->data.f64), value_.data(),
+             value_size_);
+      break;
+    case X_USER_DATA_TYPE::FLOAT:
+      memcpy(reinterpret_cast<uint8_t*>(&property->data.f32), value_.data(),
+             value_size_);
+      break;
+    case X_USER_DATA_TYPE::DATETIME:
+      memcpy(reinterpret_cast<uint8_t*>(&property->data.filetime),
+             value_.data(), value_size_);
+      break;
+    default:
+      break;
+  }
+}
+
+userDataVariant Property::GetValue() const {
+  switch (data_type_) {
+    case X_USER_DATA_TYPE::CONTENT:
+    case X_USER_DATA_TYPE::BINARY:
+      return value_;
+    case X_USER_DATA_TYPE::INT32:
+      return *reinterpret_cast<const uint32_t*>(value_.data());
+    case X_USER_DATA_TYPE::INT64:
+    case X_USER_DATA_TYPE::DATETIME:
+      return *reinterpret_cast<const uint64_t*>(value_.data());
+    case X_USER_DATA_TYPE::DOUBLE:
+      return *reinterpret_cast<const double*>(value_.data());
+    case X_USER_DATA_TYPE::WSTRING:
+      return std::u16string(reinterpret_cast<const char16_t*>(value_.data()));
+    case X_USER_DATA_TYPE::FLOAT:
+      return *reinterpret_cast<const float*>(value_.data());
+    default:
+      break;
+  }
+  return value_;
+}
+
+}  // namespace kernel
+}  // namespace xe

src/xenia/kernel/util/property.h

@@ -0,0 +1,71 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2024 Xenia Canary. All rights reserved.                          *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_KERNEL_UTIL_PROPERTY_H_
+#define XENIA_KERNEL_UTIL_PROPERTY_H_
+
+#include <variant>
+
+#include "xenia/base/byte_stream.h"
+#include "xenia/kernel/util/xuserdata.h"
+#include "xenia/memory.h"
+#include "xenia/xbox.h"
+
+namespace xe {
+namespace kernel {
+
+struct XUSER_PROPERTY {
+  xe::be<uint32_t> property_id;
+  X_USER_DATA data;
+};
+
+using userDataVariant = std::variant<uint32_t, uint64_t, float, double,
+                                     std::u16string, std::vector<uint8_t> >;
+
+class Property {
+ public:
+  // Ctor used while guest is creating property.
+  Property(uint32_t property_id, uint32_t value_size, uint8_t* value_ptr);
+  // Ctor used for deserialization
+  Property(const uint8_t* serialized_data, size_t data_size);
+  ~Property();
+
+  const AttributeKey GetPropertyId() const { return property_id_; }
+
+  bool IsValid() const { return property_id_.value != 0; }
+  std::vector<uint8_t> Serialize() const;
+
+  // Writer back to guest structure
+  void Write(Memory* memory, XUSER_PROPERTY* property) const;
+  uint32_t GetSize() const { return value_size_; }
+
+  bool RequiresPointer() const {
+    return static_cast<X_USER_DATA_TYPE>(property_id_.type) ==
+               X_USER_DATA_TYPE::CONTENT ||
+           static_cast<X_USER_DATA_TYPE>(property_id_.type) ==
+               X_USER_DATA_TYPE::WSTRING ||
+           static_cast<X_USER_DATA_TYPE>(property_id_.type) ==
+               X_USER_DATA_TYPE::BINARY;
+  }
+
+  // Returns variant for specific value in LE (host) notation.
+  userDataVariant GetValue() const;
+
+ private:
+  AttributeKey property_id_ = {};
+  X_USER_DATA_TYPE data_type_ = X_USER_DATA_TYPE::UNSET;
+
+  uint32_t value_size_ = 0;
+  std::vector<uint8_t> value_;
+};
+
+}  // namespace kernel
+}  // namespace xe
+
+#endif

src/xenia/kernel/util/xuserdata.h

@@ -74,16 +74,6 @@ class DataByteStream : public ByteStream {
 
 class UserData {
  public:
-  union Key {
-    uint32_t value;
-    struct {
-      uint32_t id : 14;
-      uint32_t unk : 2;
-      uint32_t size : 12;
-      uint32_t type : 4;
-    };
-  };
-
   UserData() {};
   UserData(X_USER_DATA_TYPE type) { data_.type = type; }