mirror of
https://github.com/electronicarts/CnC_Remastered_Collection
synced 2024-04-26 08:22:17 +12:00
03416d24e1
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
218 lines
13 KiB
C++
218 lines
13 KiB
C++
//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/* $Header: /CounterStrike/BUFF.CPP 1 3/03/97 10:24a Joe_bostic $ */
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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 : Command & Conquer *
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* *
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* File Name : BUFF.CPP *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : 07/29/96 *
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* *
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* Last Update : September 7, 1996 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* Buffer::Buffer -- Constructor for buffer object. *
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* Buffer::Buffer -- Copy constructor for buffer object. *
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* Buffer::Buffer -- Self-allocating constructor for buffer object. *
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* Buffer::Reset -- Clears the buffer object to null state. *
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* Buffer::operator = -- Assignment operator for the buffer object. *
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* Buffer::~Buffer -- Destructor for buffer object. *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "buff.h"
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#include <stddef.h>
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/***********************************************************************************************
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* Buffer::Buffer -- Constructor for buffer object. *
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* *
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* This is the normal constructor for a buffer object. The buffer pointer and size are *
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* specified as parameters. *
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* *
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* INPUT: buffer -- Pointer to the buffer. *
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* *
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* size -- The size of the buffer. *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: It is possible to construct a Buffer object that has a pointer but a size *
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* value of zero. The Buffer object can still be used for its pointer, but it *
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* any function that requires a size will fail. *
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* *
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* HISTORY: *
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* 07/29/1996 JLB : Created. *
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*=============================================================================================*/
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Buffer::Buffer(void * buffer, long size) :
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BufferPtr(buffer),
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Size(size),
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IsAllocated(false)
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{
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}
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// Alternate constructor for char * pointer.
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Buffer::Buffer(char * buffer, long size) :
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BufferPtr(buffer),
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Size(size),
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IsAllocated(false)
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{
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}
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// Alternate constructor for void const * pointer.
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Buffer::Buffer(void const * buffer, long size) :
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BufferPtr((void*)buffer),
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Size(size),
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IsAllocated(false)
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{
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}
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/***********************************************************************************************
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* Buffer::Buffer -- Self-allocating constructor for buffer object. *
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* *
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* This construtor for a buffer object will automatically allocate the bytes necessary *
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* to fulfill the size requested. This object is also responsible for deleting the buffer *
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* it allocated. *
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* *
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* INPUT: size -- The size of the buffer to allocated. *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: There is no way to tell if the allocation failed. To verify, call Get_Buffer *
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* and compare with NULL. *
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* *
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* HISTORY: *
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* 07/29/1996 JLB : Created. *
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*=============================================================================================*/
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Buffer::Buffer(long size) :
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BufferPtr(NULL),
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Size(size),
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IsAllocated(false)
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{
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if (size > 0) {
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BufferPtr = new char[size];
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IsAllocated = true;
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}
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}
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/***********************************************************************************************
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* Buffer::Buffer -- Copy constructor for buffer object. *
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* *
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* This will make a duplicate of the specified buffer object. The ownership of the pointer *
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* remains with the original object. This prevents multiple deletion of the same pointer. *
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* *
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* INPUT: buffer -- Reference to the buffer object to be dupilcated. *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 08/02/1996 JLB : Created. *
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*=============================================================================================*/
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Buffer::Buffer(Buffer const & buffer) :
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IsAllocated(false)
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{
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BufferPtr = buffer.BufferPtr;
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Size = buffer.Size;
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}
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/***********************************************************************************************
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* Buffer::operator = -- Assignment operator for the buffer object. *
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* *
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* This will make a duplicate of the buffer object specified. Any buffer pointed to by the *
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* left hand buffer will be lost (possibley freed as a result). *
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* *
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* INPUT: buffer -- Reference to the right hand buffer object. *
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* *
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* OUTPUT: Returns with a reference to the copied buffer object. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 08/02/1996 JLB : Created. *
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*=============================================================================================*/
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Buffer & Buffer::operator = (Buffer const & buffer)
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{
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if (buffer != this) {
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if (IsAllocated) {
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delete [] BufferPtr;
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}
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IsAllocated = false;
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BufferPtr = buffer.BufferPtr;
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Size = buffer.Size;
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}
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return(*this);
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}
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/***********************************************************************************************
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* Buffer::~Buffer -- Destructor for buffer object. *
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* *
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* This destructor will free any buffer it is responsible for. *
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* *
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* INPUT: none *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 07/29/1996 JLB : Created. *
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*=============================================================================================*/
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Buffer::~Buffer(void)
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{
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Reset();
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}
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/***********************************************************************************************
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* Buffer::Reset -- Clears the buffer object to null state. *
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* *
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* This routine will bring the buffer object into a null (newly constructed) state. If *
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* there was any buffer allocated or referred to by this object, it will be freed or *
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* dereferenced as necessary. *
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* *
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* INPUT: none *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: This routine will free the buffer if it is responsible for doing so when *
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* it is no longer referenced. *
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* *
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* HISTORY: *
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* 09/07/1996 JLB : Created. *
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*=============================================================================================*/
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void Buffer::Reset(void)
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{
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if (IsAllocated) {
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delete [] BufferPtr;
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}
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BufferPtr = NULL;
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Size = 0;
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IsAllocated = false;
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}
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