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/*
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    This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
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    Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au
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    Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft
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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 2 of the License, or
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    (at your option) any later version.
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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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    You should have received a copy of the GNU General Public License
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    along with this program; if not, write to the Free Software
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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*/
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#include "ff.h"
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#include <Resources.h>
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#include "file_compat.h"
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Boolean readPARMresource(HMODULE hm,char **reason,int readobfusc){
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        Boolean res = false;
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        Handle h;
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        if( !(h = Get1Resource(PARM_TYPE,PARM_ID))
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          && readobfusc
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          && (h = Get1Resource('DATA',OBFUSCDATA_ID)) ){
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                HLock(h);
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                obfusc((unsigned char*)*h,GetHandleSize(h));
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        }
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        if(h){
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                HLock(h);
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                res = readPARM(*h, &gdata->parm, reason, 0 /*Mac format resource*/);
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                ReleaseResource(h);
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        }
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        return res;
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}
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static Boolean readmacplugin(StandardFileReply *sfr,char **reason){
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        Boolean res = false;
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        short rrn = FSpOpenResFile(&sfr->sfFile,fsRdPerm);
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        if(rrn != -1){
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                if(readPARMresource(NULL,reason,0))
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                        res = true;
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                CloseResFile(rrn);
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        }else
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                *reason = "Could not open file.";
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        return res;
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}
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Boolean loadfile(StandardFileReply *sfr,char **reason){
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        Boolean readok = false;
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        FInfo fndrInfo;
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        if(FSpGetFInfo(&sfr->sfFile,&fndrInfo) == noErr){
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                // first try to read text parameters (AFS, TXT, PFF)
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                if( (readok = readfile(sfr,reason)) )
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                        gdata->parmloaded = false;
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                        // then try plugin formats (Mac first, then Windows .8bf or .prm DLL)
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                else if( (readok = readmacplugin(sfr,reason) || read8bfplugin(sfr,reason)) ){
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                        if(gdata->parm.iProtected){
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                                *reason = "The filter is protected.";
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                                return false;
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                        }else
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                                gdata->parmloaded = true;
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                }else
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                        *reason = "It is not a text parameter (AFS) file, nor a standalone Mac/PC filter made by Filter Factory/Filter Foundry.";
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        }
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        return readok;
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}