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Wojtek Figat
229
Source/Engine/Serialization/JsonWriter.cpp
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229
Source/Engine/Serialization/JsonWriter.cpp
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// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
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#include "JsonWriter.h"
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#include "Engine/Core/Log.h"
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#include "Engine/Core/Types/CommonValue.h"
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#include "Engine/Content/Content.h"
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#include "Engine/Level/Prefabs/Prefab.h"
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#include "Engine/Level/SceneObject.h"
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#include "Engine/Utilities/Encryption.h"
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void JsonWriter::Blob(const void* data, int32 length)
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{
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::Array<char> base64;
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base64.Resize(Encryption::Base64EncodeLength(length));
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Encryption::Base64Encode((byte*)data, length, base64.Get());
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String(base64.Get(), base64.Count());
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}
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void JsonWriter::Matrix(const ::Matrix& value)
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{
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StartObject();
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JKEY("M11");
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Float(value.M11);
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JKEY("M12");
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Float(value.M12);
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JKEY("M13");
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Float(value.M13);
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JKEY("M14");
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Float(value.M14);
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JKEY("M21");
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Float(value.M21);
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JKEY("M22");
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Float(value.M22);
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JKEY("M23");
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Float(value.M23);
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JKEY("M24");
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Float(value.M24);
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JKEY("M31");
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Float(value.M31);
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JKEY("M32");
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Float(value.M32);
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JKEY("M33");
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Float(value.M33);
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JKEY("M34");
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Float(value.M34);
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JKEY("M41");
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Float(value.M41);
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JKEY("M42");
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Float(value.M42);
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JKEY("M43");
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Float(value.M43);
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JKEY("M44");
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Float(value.M44);
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EndObject();
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}
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void JsonWriter::CommonValue(const ::CommonValue& value)
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{
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StartObject();
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JKEY("Type");
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Int((int32)value.Type);
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JKEY("Value");
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switch (value.Type)
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{
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case CommonType::Bool:
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Bool(value.AsBool);
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break;
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case CommonType::Integer:
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Int(value.AsInteger);
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break;
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case CommonType::Float:
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Float(value.AsFloat);
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break;
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case CommonType::Vector2:
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Vector2(value.AsVector2);
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break;
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case CommonType::Vector3:
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Vector3(value.AsVector3);
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break;
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case CommonType::Vector4:
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Vector4(value.AsVector4);
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break;
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case CommonType::Color:
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Color(value.AsColor);
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break;
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case CommonType::Guid:
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Guid(value.AsGuid);
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break;
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case CommonType::String:
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String(value.AsString);
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break;
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case CommonType::Box:
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BoundingBox(value.AsBox);
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break;
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case CommonType::Rotation:
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Quaternion(value.AsRotation);
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break;
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case CommonType::Transform:
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Transform(value.AsTransform);
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break;
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case CommonType::Sphere:
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BoundingSphere(value.AsSphere);
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break;
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case CommonType::Rectangle:
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Rectangle(value.AsRectangle);
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break;
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case CommonType::Ray:
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Ray(value.AsRay);
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break;
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case CommonType::Pointer:
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Int64((int64)value.AsPointer);
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break;
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case CommonType::Matrix:
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Matrix(value.AsMatrix);
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break;
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case CommonType::Blob:
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{
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::Array<char> base64;
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base64.Resize(Encryption::Base64EncodeLength(value.AsBlob.Length));
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Encryption::Base64Encode(value.AsBlob.Data, value.AsBlob.Length, base64.Get());
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String(base64.Get(), base64.Count());
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break;
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}
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case CommonType::Object:
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Guid(value.GetObjectId());
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break;
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default:
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CRASH;
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break;
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}
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EndObject();
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}
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void JsonWriter::Guid(const ::Guid& value)
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{
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// Unoptimized version:
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//Text(value.ToString(Guid::FormatType::N));
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// Optimized version:
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// @formatter:off
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char buffer[32] =
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{
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'0','0', '0', '0', '0', '0', '0', '0',
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'0','0', '0', '0', '0', '0', '0', '0',
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'0','0', '0', '0', '0', '0', '0', '0',
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'0','0', '0', '0', '0', '0', '0', '0'
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};
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// @formatter:on
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static const char* digits = "0123456789abcdef";
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uint32 n = value.A;
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char* p = buffer + 7;
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do
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{
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*p-- = digits[n & 0xf];
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} while ((n >>= 4) != 0);
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n = value.B;
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p = buffer + 15;
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do
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{
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*p-- = digits[n & 0xf];
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} while ((n >>= 4) != 0);
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n = value.C;
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p = buffer + 23;
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do
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{
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*p-- = digits[n & 0xf];
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} while ((n >>= 4) != 0);
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n = value.D;
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p = buffer + 31;
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do
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{
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*p-- = digits[n & 0xf];
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} while ((n >>= 4) != 0);
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String(buffer, 32);
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}
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void JsonWriter::Object(ISerializable* value, const void* otherObj)
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{
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StartObject();
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value->Serialize(*this, otherObj);
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EndObject();
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}
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void JsonWriter::SceneObject(::SceneObject* obj)
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{
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StartObject();
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// Serialize prefab instances with diff detection
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if (obj->HasPrefabLink())
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{
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// Load prefab
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auto prefab = Content::Load<Prefab>(obj->GetPrefabID());
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if (prefab)
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{
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// Request the prefab to be deserialized to the default instance (used for comparision to generate a diff)
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prefab->GetDefaultInstance();
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// Get prefab object instance from the prefab
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const void* prefabObject;
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if (prefab->ObjectsCache.TryGet(obj->GetPrefabObjectID(), prefabObject))
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{
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// Serialize modified properties compared with the default object from prefab
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obj->Serialize(*this, prefabObject);
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EndObject();
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return;
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}
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else
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{
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LOG(Warning, "Missing object {1} in prefab {0}.", prefab->ToString(), obj->GetPrefabObjectID());
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}
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}
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else
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{
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if (prefab)
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LOG(Warning, "Failed to load prefab {0}.", prefab->ToString());
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else
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LOG(Warning, "Missing prefab with id={0}.", obj->GetPrefabID());
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}
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}
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// Serialize modified properties compared with the default class object
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const void* defaultInstance = obj->GetType().GetDefaultInstance();
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obj->Serialize(*this, defaultInstance);
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EndObject();
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}
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