/*
** Command & Conquer Red Alert(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 A S S O C I A T E S **
***************************************************************************
* *
* Project Name : IFF *
* *
* File Name : LOADPCX.CPP *
* *
* Programmer : Julio R. Jerez *
* *
* Start Date : May 2, 1995 *
* *
* Last Update : May 3, 1995 [JRJ] *
* *
*-------------------------------------------------------------------------*
* Functions: *
* GraphicBufferClass* Read_PCX_File (char* name, void *Buff, long size ); *
* int Get_PCX_Palette (char * name, void& palette ) *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
#include <wwlib32.h>
#include "filepcx.h"
/***************************************************************************
* READ_PCX_FILE -- read a pcx file into a Graphic Buffer *
* *
* GraphicBufferClass* Read_PCX_File (char* name, char* palette ,void *Buff, long size ); *
* *
* *
* INPUT: name is a NULL terminated string of the fromat [xxxx.pcx] *
* palette is optional, if palette != NULL the the color palette of *
* the pcx file will be place in the memory block pointed *
* by palette. *
* Buff is optinal, if Buff == NULL a new memory Buffer *
* will be allocated, otherwise the file will be placed *
* at location pointd by Buffer; *
* Size is the size in bytes of the memory block pointed by Buff *
* is also optional;
* *
* OUTPUT: on succes a pointer to a GraphicBufferClass cointaining the *
* pcx file, NULL othewise. *
* *
* WARNINGS: *
* *
* HISTORY: *
* 05/03/1995 JRJ : Created. *
*=========================================================================*/
#define POOL_SIZE 2048
#define READ_CHAR() * file_ptr ++ ; \
if ( file_ptr >= & pool [ POOL_SIZE ] ) { \
Read_File ( file_handle, pool , POOL_SIZE ) ; \
file_ptr = pool ; \
}
GraphicBufferClass* Read_PCX_File (char* name, BYTE* Palette,void *Buff, long Size)
{
unsigned i , j ;
unsigned rle ;
unsigned color ;
unsigned scan_pos ;
unsigned file_size ;
char * file_ptr ;
int width ;
int height ;
int file_handle ;
char * buffer ;
PCX_HEADER header ;
RGB * pal ;
char pool [ POOL_SIZE ] ;
GraphicBufferClass * pic ;
// Open file name
file_handle = Open_File ( name , READ ) ;
if ( file_handle == ERROR ) return NULL ;
Read_File ( file_handle, & header , sizeof (PCX_HEADER)) ;
if ( header.id != 10 && header.version != 5 &&
header.pixelsize != 8 ) return NULL ;
width = header.width - header.x + 1 ;
height = header.height - header.y + 1 ;
if ( Buff ) {
buffer = ( char * ) Buff;
i = Size / width;
height = MIN ( i - 1, height);
pic = new GraphicBufferClass( Size, width, height, buffer);
if ( !(pic && pic->Get_Buffer()))return NULL ;
} else {
pic = new GraphicBufferClass(width*(height+4), width, height);
if ( !(pic && pic->Get_Buffer()))return NULL ;
}
buffer = (char *) pic->Get_Buffer() ;
file_ptr = pool ;
Read_File ( file_handle, pool , POOL_SIZE ) ;
if ( header.byte_per_line != width )
for ( scan_pos = j = 0 ; j < height ; j ++, scan_pos += width ) {
for ( i = 0 ; i < width ; ) {
rle = READ_CHAR ();
if ( rle > 192 ) {
rle -= 192 ;
color = READ_CHAR (); ;
memset ( buffer + scan_pos + i , color , rle ) ;
i += rle ;
} else * ( buffer + scan_pos + i ++ ) = rle ;
}
if ( i == width )
rle = READ_CHAR () ;
// if ( rle > 192 ) rle = READ_CHAR ();
}
else for ( i = 0 ; i < width * height ; ) {
rle = READ_CHAR ();
if ( rle > 192 ) {
rle -= 192 ;
color = READ_CHAR ();
memset ( buffer + i , color , rle ) ;
i += rle ;
} else * ( buffer + i ++ ) = rle ;
}
if ( Palette ) {
Seek_File ( file_handle , - 256 * sizeof ( RGB ) , SEEK_END ) ;
Read_File ( file_handle, Palette , 256 * sizeof ( RGB )) ;
pal = ( RGB * ) Palette ;
for ( i = 0 ; i < 256 ; i ++ ) {
pal -> red >>= 2 ;
pal -> green >>= 2 ;
pal -> blue >>= 2 ;
pal ++ ;
}
}
Close_File (file_handle) ;
return pic ;
}
/***************************************************************************
* READ_PCX_FILE -- read a pcx file into a Graphic Buffer *
* *
* GraphicBufferClass* Read_PCX_File (char* name, BufferClass& Buff, *
* char* palette) * *
* *
* *
* INPUT: name is a NULL terminated string of the fromat [xxxx.pcx] *
* Buff is a pointer to a BufferClass the will hold the pcx file *
* at location pointd by Buffer; *
* palette is optional, if palette != NULL the the color palette of *
* the pcx file will be place in the memory block pointed *
* by palette. *
* *
* OUTPUT: on succes a pointer to a GraphicBufferClass cointaining the *
* pcx file, NULL othewise. *
* *
* WARNINGS: *
* *
* HISTORY: *
* 05/03/1995 JRJ : Created. *
*=========================================================================*/
GraphicBufferClass* Read_PCX_File (char* name, BufferClass& Buff,char* palette)
{
return Read_PCX_File(name, palette, (void*)Buff.Get_Buffer(), Buff.Get_Size());
}