130 lines
4 KiB
C++
130 lines
4 KiB
C++
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/*
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** Command & Conquer Renegade(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/***********************************************************************************************
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*** 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 ***
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***********************************************************************************************
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* *
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* Project Name : wwlib *
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* *
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* $Archive:: /Commando/Code/wwlib/rcfile.cpp $*
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* *
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* Author:: Greg Hjelstrom *
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* *
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* $Modtime:: 7/09/99 1:37p $*
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* *
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* $Revision:: 5 $*
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "rcfile.h"
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#include <stdlib.h>
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const char * RESOURCE_FILE_TYPE_NAME = "File";
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ResourceFileClass::ResourceFileClass(HMODULE hmodule, char const *filename) :
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ResourceName(NULL),
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hModule(NULL),
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FileBytes(NULL),
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FilePtr(NULL),
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EndOfFile(NULL)
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{
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Set_Name(filename);
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HRSRC hresource = FindResource(hmodule,ResourceName,RESOURCE_FILE_TYPE_NAME);
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if (hresource) {
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HGLOBAL hglob = LoadResource(hmodule,hresource);
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if (hglob) {
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FileBytes = (unsigned char *)LockResource(hglob);
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if (FileBytes) {
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FilePtr = FileBytes;
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EndOfFile = FileBytes + SizeofResource(hmodule,hresource);
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}
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}
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}
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}
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ResourceFileClass::~ResourceFileClass(void)
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{
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if (ResourceName)
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free(ResourceName);
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}
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char const * ResourceFileClass::Set_Name(char const *filename)
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{
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if (ResourceName) {
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free(ResourceName);
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ResourceName = NULL;
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}
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if (filename) {
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ResourceName = strdup(filename);
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}
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return ResourceName;
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}
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int ResourceFileClass::Read(void *buffer, int size)
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{
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if (!FilePtr) return 0;
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if (FilePtr + size > EndOfFile) {
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size = EndOfFile - FilePtr;
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}
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memcpy(buffer,FilePtr,size);
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FilePtr += size;
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return size;
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}
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int ResourceFileClass::Seek(int pos, int dir)
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{
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switch (dir) {
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case SEEK_SET:
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FilePtr = FileBytes + pos;
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break;
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case SEEK_CUR:
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FilePtr = FilePtr + pos;
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break;
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case SEEK_END:
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FilePtr = EndOfFile + pos;
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break;
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}
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if (FilePtr > EndOfFile) {
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FilePtr = EndOfFile;
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}
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if (FilePtr < FileBytes) {
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FilePtr = FileBytes;
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}
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return FilePtr - FileBytes;
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}
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int ResourceFileClass::Size(void)
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{
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return EndOfFile - FileBytes;
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}
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void ResourceFileClass::Error(int /*error*/, int /*canretry*/, char const * /*filename*/)
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{
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}
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