mirror of
https://github.com/electronicarts/CnC_Remastered_Collection
synced 2024-04-29 01:42:27 +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.
434 lines
24 KiB
C++
434 lines
24 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: F:\projects\c&c\vcs\code\jshell.cpv 2.18 16 Oct 1995 16:51:12 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 : JSHELL.CPP *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : April 2, 1994 *
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* *
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* Last Update : May 11, 1995 [JLB] *
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* *
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*---------------------------------------------------------------------------------------------*
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* Functions: *
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* Build_Translucent_Table -- Creates a translucent control table. *
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* Translucent_Table_Size -- Determines the size of a translucent table. *
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* Conquer_Build_Translucent_Table -- Builds fading table for shadow colors only. *
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* Load_Alloc_Data -- Allocates a buffer and loads the file into it. *
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* Load_Uncompress -- Loads and uncompresses data to a buffer. *
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* Fatal -- General purpose fatal error handler. *
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* Set_Window -- Sets the window dimensions to that specified. *
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* Small_Icon -- Create a small icon from a big one. *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "function.h"
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#include "wwfile.h"
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#include <assert.h>
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/***********************************************************************************************
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* Small_Icon -- Create a small icon from a big one. *
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* *
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* This routine will extract the specified icon from the icon data file and convert that *
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* incon into a small (3x3) representation. Typicall use of this mini-icon is for the radar *
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* map. *
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* *
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* INPUT: iconptr -- Pointer to the icon data file. *
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* *
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* iconnum -- The embedded icon number to convert into a small image. *
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* *
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* OUTPUT: Returns with a pointer to the small icon imagery. This is exactly 9 bytes long. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 05/11/1995 JLB : Created. *
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*=============================================================================================*/
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void * Small_Icon(void const * iconptr, int iconnum)
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{
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static unsigned char _icon[9];
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IControl_Type const * iptr = (IControl_Type const *)iconptr;
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unsigned char * data;
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if (iconptr) {
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iconnum = iptr->Map[iconnum];
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data = &iptr->Icons[iconnum*(24*24)];
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for (int index = 0; index < 9; index++) {
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int _offsets[9] = {
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4+4*24,
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12+4*24,
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20+4*24,
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4+12*24,
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12+12*24,
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20+12*24,
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4+20*24,
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12+20*24,
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20+20*24
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};
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_icon[index] = data[_offsets[index]];
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}
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}
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return(_icon);
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}
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/***********************************************************************************************
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* Set_Window -- Sets the window dimensions to that specified. *
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* *
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* Use this routine to set the windows dimensions to the coordinates and dimensions *
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* specified. *
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* *
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* INPUT: x -- Window X pixel position. *
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* *
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* y -- Window Y pixel position. *
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* *
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* w -- Window width in pixels. *
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* *
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* h -- Window height in pixels. *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: The X and width values are truncated to an even 8 pixel boundary. This is *
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* the same as stripping off the lower 3 bits. *
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* *
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* HISTORY: *
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* 01/15/1995 JLB : Created. *
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*=============================================================================================*/
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void Set_Window(int window, int x, int y, int w, int h)
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{
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WindowList[window][WINDOWWIDTH] = w >> 3;
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WindowList[window][WINDOWHEIGHT] = h;
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WindowList[window][WINDOWX] = x >> 3;
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WindowList[window][WINDOWY] = y;
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}
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/***********************************************************************************************
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* Fatal -- General purpose fatal error handler. *
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* *
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* This is a very simple general purpose fatal error handler. It goes directly to text *
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* mode, prints the error, and then aborts with a failure code. *
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* *
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* INPUT: message -- The text message to display. *
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* *
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* ... -- Any optional parameters that are used in formatting the message. *
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* *
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* OUTPUT: none *
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* *
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* WARNINGS: This routine never returns. The game exits immediately. *
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* *
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* HISTORY: *
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* 10/17/1994 JLB : Created. *
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*=============================================================================================*/
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void Fatal(char const *message, ...)
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{
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va_list va;
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va_start(va, message);
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Prog_End();
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vfprintf(stderr, message, va);
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Mono_Printf(message);
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GlyphX_Debug_Print("Fatal");
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GlyphX_Debug_Print(message);
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if (!RunningAsDLL) {
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exit(EXIT_FAILURE);
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} else {
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*((int*)0) = 0;
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}
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}
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#ifdef NEVER
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void File_Fatal(char const *message)
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{
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Prog_End();
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perror(message);
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if (!RunningAsDLL) {
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exit(EXIT_FAILURE);
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}
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}
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#endif
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/***********************************************************************************************
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* Load_Uncompress -- Loads and uncompresses data to a buffer. *
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* *
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* This is the C++ counterpart to the Load_Uncompress function. It will load the file *
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* specified into the graphic buffer indicated and uncompress it. *
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* *
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* INPUT: file -- The file to load and uncompress. *
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* *
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* uncomp_buff -- The graphic buffer that initial loading will use. *
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* *
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* dest_buff -- The buffer that will hold the uncompressed data. *
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* *
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* reserved_data -- This is an optional pointer to a buffer that will hold any *
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* reserved data the compressed file may contain. This is *
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* typically a palette. *
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* *
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* OUTPUT: Returns with the size of the uncompressed data in the destination buffer. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 10/17/1994 JLB : Created. *
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*=============================================================================================*/
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long Load_Uncompress(FileClass &file, BuffType &uncomp_buff, BuffType &dest_buff, void *reserved_data)
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{
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unsigned short size;
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void *sptr = uncomp_buff.Get_Buffer();
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void *dptr = dest_buff.Get_Buffer();
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int opened = false;
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CompHeaderType header;
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/*
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** The file must be opened in order to be read from. If the file
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** isn't opened, then open it. Record this fact so that it can be
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** restored to its closed state at the end.
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*/
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if (!file.Is_Open()) {
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if (!file.Open()) {
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return(0);
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}
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opened = true;
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}
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/*
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** Read in the size of the file (supposedly).
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*/
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file.Read(&size, sizeof(size));
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/*
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** Read in the header block. This block contains the compression type
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** and skip data (among other things).
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*/
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file.Read(&header, sizeof(header));
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size -= sizeof(header);
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/*
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** If there are skip bytes then they must be processed. Either read
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** them into the buffer provided or skip past them. No check is made
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** to ensure that the reserved data buffer is big enough (watch out!).
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*/
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if (header.Skip) {
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size -= header.Skip;
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if (reserved_data) {
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file.Read(reserved_data, header.Skip);
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} else {
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file.Seek(header.Skip, SEEK_CUR);
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}
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header.Skip = 0;
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}
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/*
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** Determine where is the proper place to load the data. If both buffers
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** specified are identical, then the data should be loaded at the end of
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** the buffer and decompressed at the beginning.
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*/
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if (uncomp_buff.Get_Buffer() == dest_buff.Get_Buffer()) {
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sptr = Add_Long_To_Pointer(sptr, uncomp_buff.Get_Size()-(size+sizeof(header)));
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}
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/*
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** Read in the bulk of the data.
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*/
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Mem_Copy(&header, sptr, sizeof(header));
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file.Read(Add_Long_To_Pointer(sptr, sizeof(header)), size);
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/*
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** Decompress the data.
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*/
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size = (unsigned int) Uncompress_Data(sptr, dptr);
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/*
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** Close the file if necessary.
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*/
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if (opened) {
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file.Close();
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}
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return((long)size);
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}
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/***********************************************************************************************
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* Load_Alloc_Data -- Allocates a buffer and loads the file into it. *
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* *
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* This is the C++ replacement for the Load_Alloc_Data function. It will allocate the *
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* memory big enough to hold the file and then read the file into it. *
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* *
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* INPUT: file -- The file to read. *
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* *
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* mem -- The memory system to use for allocation. *
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* *
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* OUTPUT: Returns with a pointer to the allocated and filled memory block. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 10/17/1994 JLB : Created. *
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*=============================================================================================*/
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void * Load_Alloc_Data(FileClass &file)
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{
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void *ptr = 0;
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long size = file.Size();
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ptr = new char [size];
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if (ptr) {
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file.Read(ptr, size);
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}
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return(ptr);
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}
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/***********************************************************************************************
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* Translucent_Table_Size -- Determines the size of a translucent table. *
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* *
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* Use this routine to determine how big the translucent table needs *
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* to be given the specified number of colors. This value is typically *
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* used when allocating the buffer for the translucent table. *
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* *
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* INPUT: count -- The number of colors that are translucent. *
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* *
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* OUTPUT: Returns the size of the translucent table. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 04/02/1994 JLB : Created. *
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*=============================================================================================*/
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long Translucent_Table_Size(int count)
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{
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return(256L + (256L * count));
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}
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/***********************************************************************************************
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* Build_Translucent_Table -- Creates a translucent control table. *
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* *
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* The table created by this routine is used by Draw_Shape (GHOST) to *
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* achieve a translucent affect. The original color of the shape will *
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* show through. This differs from the fading effect, since that *
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* affect only alters the background color toward a single destination *
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* color. *
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* *
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* INPUT: palette -- Pointer to the control palette. *
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* *
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* control -- Pointer to array of structures that control how *
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* the translucent table will be built. *
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* *
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* count -- The number of entries in the control array. *
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* *
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* buffer -- Pointer to buffer to place the translucent table. *
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* If NULL is passed in, then the buffer will be *
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* allocated. *
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* *
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* OUTPUT: Returns with pointer to the translucent table. *
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* *
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* WARNINGS: This routine is exceedingly slow. Use sparingly. *
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* *
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* HISTORY: *
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* 04/02/1994 JLB : Created. *
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*=============================================================================================*/
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void *Build_Translucent_Table(void const *palette, TLucentType const *control, int count, void *buffer)
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{
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unsigned char const *table; // Remap table pointer.
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int index; // Working color index.
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if (count && control && palette) {
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if (!buffer) {
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buffer = new char [Translucent_Table_Size(count)];
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}
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if (buffer) {
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memset(buffer, -1, 256);
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table = (unsigned char*)Add_Long_To_Pointer((void*)buffer, 256);
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/*
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** Build the individual remap tables for each translucent color.
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*/
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for (index = 0; index < count; index++) {
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((unsigned char*)buffer)[control[index].SourceColor] = index;
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Build_Fading_Table(palette, (void*)table, control[index].DestColor, control[index].Fading);
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table = (unsigned char*)Add_Long_To_Pointer((void*)table, 256);
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}
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}
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}
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return(buffer);
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}
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/***********************************************************************************************
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* Conquer_Build_Translucent_Table -- Builds fading table for shadow colors only. *
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* *
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* This routine will build a translucent (fading) table to remap colors into the shadow *
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* color region of the palette. Shadow colors are not affected by this translucent table. *
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* This means that a shape can be overlapped any number of times and the imagery will *
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* remain deterministic (and constant). *
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* *
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* INPUT: palette -- Pointer to the palette to base the translucent process on. *
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* *
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* control -- Pointer to special control structure that specifies the *
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* target color, and percentage of fade. *
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* *
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* count -- The number of colors to be remapped (entries in the control array). *
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* *
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* buffer -- Pointer to the staging buffer that will hold the translucent table *
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* data. If this parameter is NULL, then an appropriate sized table *
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* will be allocated. *
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* *
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* OUTPUT: Returns with a pointer to the translucent table data. *
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* *
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* WARNINGS: none *
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* *
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* HISTORY: *
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* 06/27/1994 JLB : Created. *
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*=============================================================================================*/
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void *Conquer_Build_Translucent_Table(void const *palette, TLucentType const *control, int count, void *buffer)
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{
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unsigned char const *table; // Remap table pointer.
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int index; // Working color index.
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if (count && control && palette) {
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if (!buffer) {
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buffer = new char [Translucent_Table_Size(count)];
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}
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if (buffer) {
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memset(buffer, -1, 256);
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table = (unsigned char*)Add_Long_To_Pointer((void*)buffer, 256);
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/*
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** Build the individual remap tables for each translucent color.
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*/
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for (index = 0; index < count; index++) {
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((unsigned char*)buffer)[control[index].SourceColor] = index;
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Conquer_Build_Fading_Table(palette, (void*)table, control[index].DestColor, control[index].Fading);
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table = (unsigned char*)Add_Long_To_Pointer((void*)table, 256);
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}
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}
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}
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return(buffer);
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} |