Add RmlUi

Minecraft.Client/Windows64/RmlUi_FileInterface.cpp

@@ -0,0 +1,90 @@
+#include "stdafx.h"
+#include "RmlUi_FileInterface.h"
+
+FileInterface_Game::FileInterface_Game()
+{
+	memset(m_files, 0, sizeof(m_files));
+}
+
+FileInterface_Game::~FileInterface_Game()
+{
+	for (size_t i = 0; i < MAX_OPEN_FILES; i++)
+	{
+		if (m_files[i])
+			fclose(m_files[i]);
+	}
+}
+
+Rml::FileHandle FileInterface_Game::Open(const Rml::String& path)
+{
+	// Try the path as-is first (for absolute paths)
+	FILE* fp;
+	if (fopen_s(&fp, path.c_str(), "rb") == 0 && fp)
+	{
+		for (size_t i = 0; i < MAX_OPEN_FILES; i++)
+		{
+			if (!m_files[i])
+			{
+				m_files[i] = fp;
+				return static_cast<Rml::FileHandle>(i + 1);
+			}
+		}
+		fclose(fp);
+		return 0;
+	}
+
+	// If asset path is set and path is relative, try prepending it
+	if (!m_asset_path.empty())
+	{
+		Rml::String full_path = m_asset_path + "/" + path;
+		if (fopen_s(&fp, full_path.c_str(), "rb") == 0 && fp)
+		{
+			for (size_t i = 0; i < MAX_OPEN_FILES; i++)
+			{
+				if (!m_files[i])
+				{
+					m_files[i] = fp;
+					return static_cast<Rml::FileHandle>(i + 1);
+				}
+			}
+			fclose(fp);
+			return 0;
+		}
+	}
+
+	return 0;
+}
+
+void FileInterface_Game::Close(Rml::FileHandle file)
+{
+	size_t index = static_cast<size_t>(file) - 1;
+	if (index < MAX_OPEN_FILES && m_files[index])
+	{
+		fclose(m_files[index]);
+		m_files[index] = nullptr;
+	}
+}
+
+size_t FileInterface_Game::Read(void* buffer, size_t size, Rml::FileHandle file)
+{
+	size_t index = static_cast<size_t>(file) - 1;
+	if (index < MAX_OPEN_FILES && m_files[index])
+		return fread(buffer, 1, size, m_files[index]);
+	return 0;
+}
+
+bool FileInterface_Game::Seek(Rml::FileHandle file, long offset, int origin)
+{
+	size_t index = static_cast<size_t>(file) - 1;
+	if (index < MAX_OPEN_FILES && m_files[index])
+		return _fseeki64(m_files[index], offset, origin) == 0;
+	return false;
+}
+
+size_t FileInterface_Game::Tell(Rml::FileHandle file)
+{
+	size_t index = static_cast<size_t>(file) - 1;
+	if (index < MAX_OPEN_FILES && m_files[index])
+		return _ftelli64(m_files[index]);
+	return 0;
+}