Move contents of src into project sub directory

2026-01-18 12:33:17 +01:00 · 2016-12-28 01:26:18 +00:00
parent 67c2ab8849
commit 25bc798ff8
518 changed files with 0 additions and 0 deletions
--- a/src/openrct2/object/ImageTable.cpp
+++ b/src/openrct2/object/ImageTable.cpp
@@ -0,0 +1,92 @@
+#pragma region Copyright (c) 2014-2016 OpenRCT2 Developers
+/*****************************************************************************
+ * OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
+ *
+ * OpenRCT2 is the work of many authors, a full list can be found in contributors.md
+ * For more information, visit https://github.com/OpenRCT2/OpenRCT2
+ *
+ * OpenRCT2 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * A full copy of the GNU General Public License can be found in licence.txt
+ *****************************************************************************/
+#pragma endregion
+
+#include "../core/Console.hpp"
+#include "../core/IStream.hpp"
+#include "../core/Memory.hpp"
+#include "ImageTable.h"
+#include "Object.h"
+
+ImageTable::~ImageTable()
+{
+    Memory::Free(_data);
+    _data = nullptr;
+    _dataSize = 0;
+}
+
+void ImageTable::Read(IReadObjectContext * context, IStream * stream)
+{
+    try
+    {
+        uint32 numImages = stream->ReadValue<uint32>();
+        uint32 imageDataSize = stream->ReadValue<uint32>();
+
+        uint64 headerTableSize = numImages * 16;
+        uint64 remainingBytes = stream->GetLength() - stream->GetPosition() - headerTableSize;
+        if (remainingBytes > imageDataSize)
+        {
+            context->LogWarning(OBJECT_ERROR_BAD_IMAGE_TABLE, "Image table size longer than expected.");
+            imageDataSize = (uint32)remainingBytes;
+        }
+
+        _dataSize = imageDataSize;
+        _data = Memory::Reallocate(_data, _dataSize);
+        if (_data == nullptr)
+        {
+            context->LogError(OBJECT_ERROR_BAD_IMAGE_TABLE, "Image table too large.");
+            throw Exception();
+        }
+
+        // Read g1 element headers
+        uintptr_t imageDataBase = (uintptr_t)_data;
+        for (uint32 i = 0; i < numImages; i++)
+        {
+            rct_g1_element g1Element;
+
+            uintptr_t imageDataOffset = (uintptr_t)stream->ReadValue<uint32>();
+            g1Element.offset = (uint8*)(imageDataBase + imageDataOffset);
+
+            g1Element.width = stream->ReadValue<sint16>();
+            g1Element.height = stream->ReadValue<sint16>();
+            g1Element.x_offset = stream->ReadValue<sint16>();
+            g1Element.y_offset = stream->ReadValue<sint16>();
+            g1Element.flags = stream->ReadValue<uint16>();
+            g1Element.zoomed_offset = stream->ReadValue<uint16>();
+
+            _entries.push_back(g1Element);
+        }
+
+        // Read g1 element data
+        size_t readBytes = (size_t)stream->TryRead(_data, _dataSize);
+
+        // If data is shorter than expected (some custom objects are unfortunately like that)
+        size_t unreadBytes = _dataSize - readBytes;
+        if (unreadBytes > 0)
+        {
+            void * ptr = (void*)(((uintptr_t)_data) + readBytes);
+            Memory::Set(ptr, 0, unreadBytes);
+
+            context->LogWarning(OBJECT_ERROR_BAD_IMAGE_TABLE, "Image table size shorter than expected.");
+        }
+
+        // TODO validate the image data to prevent crashes in-game
+    }
+    catch (const Exception &)
+    {
+        context->LogError(OBJECT_ERROR_BAD_IMAGE_TABLE, "Bad image table.");
+        throw;
+    }
+}