Initial commit of Command & Conquer Renegade source code.

Code/wwlib/rcfile.cpp

@@ -0,0 +1,129 @@
+/*
+**	Command & Conquer Renegade(tm)
+**	Copyright 2025 Electronic Arts Inc.
+**
+**	This program 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.
+**
+**	This program is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+**	GNU General Public License for more details.
+**
+**	You should have received a copy of the GNU General Public License
+**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/***********************************************************************************************
+ ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
+ ***********************************************************************************************
+ *                                                                                             *
+ *                 Project Name : wwlib                                                        *
+ *                                                                                             *
+ *                     $Archive:: /Commando/Code/wwlib/rcfile.cpp                             $*
+ *                                                                                             *
+ *                       Author:: Greg Hjelstrom                                               *
+ *                                                                                             *
+ *                     $Modtime:: 7/09/99 1:37p                                               $*
+ *                                                                                             *
+ *                    $Revision:: 5                                                           $*
+ *                                                                                             *
+ *---------------------------------------------------------------------------------------------*
+ * Functions:                                                                                  *
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+
+#include "rcfile.h"
+#include <stdlib.h>
+
+const char * RESOURCE_FILE_TYPE_NAME = "File";
+
+
+ResourceFileClass::ResourceFileClass(HMODULE hmodule, char const *filename) :
+	ResourceName(NULL),
+	hModule(NULL),
+	FileBytes(NULL),
+	FilePtr(NULL),
+	EndOfFile(NULL)
+{
+	Set_Name(filename);
+	HRSRC hresource = FindResource(hmodule,ResourceName,RESOURCE_FILE_TYPE_NAME);	
+
+	if (hresource) {
+		HGLOBAL hglob = LoadResource(hmodule,hresource);
+		if (hglob) {
+			FileBytes = (unsigned char *)LockResource(hglob);
+			if (FileBytes) {
+				FilePtr = FileBytes;
+				EndOfFile = FileBytes + SizeofResource(hmodule,hresource);
+			}
+		}
+	}
+}
+
+ResourceFileClass::~ResourceFileClass(void)									
+{ 
+	if (ResourceName) 
+		free(ResourceName); 
+}
+
+char const * ResourceFileClass::Set_Name(char const *filename)
+{
+	if (ResourceName) {
+		free(ResourceName);
+		ResourceName = NULL;
+	}
+	if (filename) {
+		ResourceName = strdup(filename);
+	} 
+	return ResourceName;
+}
+
+int ResourceFileClass::Read(void *buffer, int size)
+{
+	if (!FilePtr) return 0;
+
+	if (FilePtr + size > EndOfFile) {
+		size = EndOfFile - FilePtr;
+	}
+	memcpy(buffer,FilePtr,size);
+	FilePtr += size;
+	return size;
+}
+
+int ResourceFileClass::Seek(int pos, int dir)
+{
+	switch (dir) {
+		case SEEK_SET:
+			FilePtr = FileBytes + pos;
+			break;
+
+		case SEEK_CUR:
+			FilePtr = FilePtr + pos;
+			break;
+
+		case SEEK_END:
+			FilePtr = EndOfFile + pos;
+			break;
+	}
+
+	if (FilePtr > EndOfFile) {
+		FilePtr = EndOfFile;
+	}
+	if (FilePtr < FileBytes) {
+		FilePtr = FileBytes;
+	}
+	
+	return FilePtr - FileBytes;
+}
+
+int ResourceFileClass::Size(void)
+{
+	return EndOfFile - FileBytes;
+}
+
+void ResourceFileClass::Error(int /*error*/, int /*canretry*/, char const * /*filename*/)
+{
+}