mirror of
https://github.com/AppleWin/AppleWin.git
synced 2024-11-19 19:33:03 +00:00
138 lines
3.8 KiB
C++
138 lines
3.8 KiB
C++
/*
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AppleWin : An Apple //e emulator for Windows
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Copyright (C) 1994-1996, Michael O'Brien
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Copyright (C) 1999-2001, Oliver Schmidt
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Copyright (C) 2002-2005, Tom Charlesworth
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Copyright (C) 2006-2007, Tom Charlesworth, Michael Pohoreski, Nick Westgate
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AppleWin 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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AppleWin 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 AppleWin; 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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/* Description: Parallel Printer Interface Card emulation
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*
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* Author: Nick Westgate
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*/
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#include "StdAfx.h"
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#pragma hdrstop
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#include "..\resource\resource.h"
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static DWORD inactivity = 0;
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static FILE* file = NULL;
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DWORD const PRINTDRVR_SIZE = 0x100;
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//===========================================================================
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static BYTE __stdcall PrintStatus(WORD, WORD, BYTE, BYTE, ULONG);
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static BYTE __stdcall PrintTransmit(WORD, WORD, BYTE, BYTE value, ULONG);
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VOID PrintLoadRom(LPBYTE pCxRomPeripheral, const UINT uSlot)
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{
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HRSRC hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_PRINTDRVR_FW), "FIRMWARE");
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if(hResInfo == NULL)
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return;
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DWORD dwResSize = SizeofResource(NULL, hResInfo);
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if(dwResSize != PRINTDRVR_SIZE)
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return;
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HGLOBAL hResData = LoadResource(NULL, hResInfo);
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if(hResData == NULL)
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return;
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BYTE* pData = (BYTE*) LockResource(hResData); // NB. Don't need to unlock resource
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if(pData == NULL)
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return;
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memcpy(pCxRomPeripheral + uSlot*256, pData, PRINTDRVR_SIZE);
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//
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RegisterIoHandler(uSlot, PrintStatus, PrintTransmit, NULL, NULL, NULL, NULL);
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}
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//===========================================================================
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static BOOL CheckPrint()
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{
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inactivity = 0;
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if (file == NULL)
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{
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TCHAR filepath[MAX_PATH * 2];
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_tcsncpy(filepath, g_sProgramDir, MAX_PATH);
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_tcsncat(filepath, _T("Printer.txt"), MAX_PATH);
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file = fopen(filepath, "wb");
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}
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return (file != NULL);
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}
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//===========================================================================
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static void ClosePrint()
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{
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if (file != NULL)
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{
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fclose(file);
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file = NULL;
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}
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inactivity = 0;
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}
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//===========================================================================
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void PrintDestroy()
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{
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ClosePrint();
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}
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//===========================================================================
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void PrintUpdate(DWORD totalcycles)
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{
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if (file == NULL)
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{
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return;
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}
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if ((inactivity += totalcycles) > (10 * 1000 * 1000)) // around 10 seconds
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{
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// inactive, so close the file (next print will overwrite it)
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ClosePrint();
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}
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}
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//===========================================================================
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void PrintReset()
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{
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ClosePrint();
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}
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//===========================================================================
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static BYTE __stdcall PrintStatus(WORD, WORD, BYTE, BYTE, ULONG)
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{
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CheckPrint();
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return 0xFF; // status - TODO?
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}
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//===========================================================================
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static BYTE __stdcall PrintTransmit(WORD, WORD, BYTE, BYTE value, ULONG)
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{
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if (!CheckPrint())
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{
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return 0;
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}
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char c = value & 0x7F;
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fwrite(&c, 1, 1, file);
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return 0;
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}
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//===========================================================================
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