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-/*******************************************************************************
- Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
-
- (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and
- Jerremy Koot (jkoot@snes9x.com)
-
- (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net)
-
- (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net),
- funkyass (funkyass@spam.shaw.ca),
- Joel Yliluoma (http://iki.fi/bisqwit/)
- Kris Bleakley (codeviolation@hotmail.com),
- Matthew Kendora,
- Nach (n-a-c-h@users.sourceforge.net),
- Peter Bortas (peter@bortas.org) and
- zones (kasumitokoduck@yahoo.com)
-
- C4 x86 assembler and some C emulation code
- (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com),
- _Demo_ (_demo_@zsnes.com), and Nach
-
- C4 C++ code
- (c) Copyright 2003 Brad Jorsch
-
- DSP-1 emulator code
- (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson,
- John Weidman, neviksti (neviksti@hotmail.com),
- Kris Bleakley, Andreas Naive
-
- DSP-2 emulator code
- (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and
- Lord Nightmare (lord_nightmare@users.sourceforge.net
-
- OBC1 emulator code
- (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and
- Kris Bleakley
- Ported from x86 assembler to C by sanmaiwashi
-
- SPC7110 and RTC C++ emulator code
- (c) Copyright 2002 Matthew Kendora with research by
- zsKnight, John Weidman, and Dark Force
-
- S-DD1 C emulator code
- (c) Copyright 2003 Brad Jorsch with research by
- Andreas Naive and John Weidman
-
- S-RTC C emulator code
- (c) Copyright 2001 John Weidman
-
- ST010 C++ emulator code
- (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora
-
- Super FX x86 assembler emulator code
- (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault
-
- Super FX C emulator code
- (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman
-
-
- SH assembler code partly based on x86 assembler code
- (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
-
-
- Specific ports contains the works of other authors. See headers in
- individual files.
-
- Snes9x homepage: http://www.snes9x.com
-
- Permission to use, copy, modify and distribute Snes9x in both binary and
- source form, for non-commercial purposes, is hereby granted without fee,
- providing that this license information and copyright notice appear with
- all copies and any derived work.
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event shall the authors be held liable for any damages
- arising from the use of this software.
-
- Snes9x is freeware for PERSONAL USE only. Commercial users should
- seek permission of the copyright holders first. Commercial use includes
- charging money for Snes9x or software derived from Snes9x.
-
- The copyright holders request that bug fixes and improvements to the code
- should be forwarded to them so everyone can benefit from the modifications
- in future versions.
-
- Super NES and Super Nintendo Entertainment System are trademarks of
- Nintendo Co., Limited and its subsidiary companies.
-*******************************************************************************/
-
-#ifdef UNZIP_SUPPORT
-/**********************************************************************************************/
-/* Loadzip.CPP */
-/* This file contains a function for loading a SNES ROM image from a zip file */
-/**********************************************************************************************/
-
-#include <string.h>
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#include <ctype.h>
-
-#ifndef NO_INLINE_SET_GET
-#define NO_INLINE_SET_GET
-#endif
-
-#include "snes9x.h"
-#include "memmap.h"
-
-#include "unzip.h"
-#include <stdio.h>
-#include <stdlib.h>
-
-bool8 LoadZip(const char* zipname,
- int32 *TotalFileSize,
- int32 *headers, uint8* buffer)
-{
- *TotalFileSize = 0;
- *headers = 0;
-
- unzFile file = unzOpen(zipname);
- if(file == NULL)
- return (FALSE);
-
- // find largest file in zip file (under MAX_ROM_SIZE)
- // or a file with extension .1
- char filename[132];
- int filesize = 0;
- int port = unzGoToFirstFile(file);
- unz_file_info info;
- while(port == UNZ_OK)
- {
- char name[132];
- unzGetCurrentFileInfo(file, &info, name,128, NULL,0, NULL,0);
-
- int calc_size = info.uncompressed_size & ~0x1FFF; // round to lower 0x2000
- if(!(info.uncompressed_size - calc_size == 512 || info.uncompressed_size == calc_size))
- {
- port = unzGoToNextFile(file);
- continue;
- }
-
- if(info.uncompressed_size > (CMemory::MAX_ROM_SIZE + 512))
- {
- port = unzGoToNextFile(file);
- continue;
- }
-
- if ((int) info.uncompressed_size > filesize)
- {
- strcpy(filename,name);
- filesize = info.uncompressed_size;
- }
- int len = strlen(name);
- if(name[len-2] == '.' && name[len-1] == '1')
- {
- strcpy(filename,name);
- filesize = info.uncompressed_size;
- break;
- }
- port = unzGoToNextFile(file);
- }
- if( !(port == UNZ_END_OF_LIST_OF_FILE || port == UNZ_OK) || filesize == 0)
- {
-// assert( unzClose(file) == UNZ_OK );
- return (FALSE);
- }
-
- // Find extension
- char tmp[2];
- tmp[0] = tmp[1] = 0;
- char *ext = strrchr(filename,'.');
- if(ext) ext++;
- else ext = tmp;
-
- uint8 *ptr = buffer;
- bool8 more = FALSE;
-
- unzLocateFile(file,filename,1);
- unzGetCurrentFileInfo(file, &info, filename,128, NULL,0, NULL,0);
-
- if( unzOpenCurrentFile(file) != UNZ_OK )
- {
- unzClose(file);
- return (FALSE);
- }
-
- do
- {
-// assert(info.uncompressed_size <= CMemory::MAX_ROM_SIZE + 512);
- int FileSize = info.uncompressed_size;
-
- int calc_size = FileSize & ~0x1FFF; // round to lower 0x2000
-
- int l = unzReadCurrentFile(file,ptr,FileSize);
- if(unzCloseCurrentFile(file) == UNZ_CRCERROR)
- {
- unzClose(file);
- return (FALSE);
- }
-
- if(l <= 0 || l != FileSize)
- {
- unzClose(file);
- switch(l)
- {
- case UNZ_ERRNO:
- break;
- case UNZ_EOF:
- break;
- case UNZ_PARAMERROR:
- break;
- case UNZ_BADZIPFILE:
- break;
- case UNZ_INTERNALERROR:
- break;
- case UNZ_CRCERROR:
- break;
- }
- return (FALSE);
- }
-
- if ((FileSize - calc_size == 512 && !Settings.ForceNoHeader) ||
- Settings.ForceHeader)
- {
- // memmove required: Overlapping addresses [Neb]
- // DS2 DMA notes: Can be split into 512-byte DMA blocks [Neb]
- memmove (ptr, ptr + 512, calc_size);
- (*headers)++;
- FileSize -= 512;
- }
- ptr += FileSize;
- (*TotalFileSize) += FileSize;
-
- int len;
- if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 0x200 &&
- (isdigit (ext [0]) && ext [1] == 0 && ext [0] < '9'))
- {
- more = TRUE;
- ext [0]++;
- }
- else if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 0x200 &&
- (((len = strlen (filename)) == 7 || len == 8) &&
- strncasecmp (filename, "sf", 2) == 0 &&
- isdigit (filename [2]) && isdigit (filename [3]) && isdigit (filename [4]) &&
- isdigit (filename [5]) && isalpha (filename [len - 1])))
- {
- more = TRUE;
- filename [len - 1]++;
- }
- else
- more = FALSE;
-
- if(more)
- {
- if( unzLocateFile(file,filename,1) != UNZ_OK ||
- unzGetCurrentFileInfo(file, &info, filename,128, NULL,0, NULL,0) != UNZ_OK ||
- unzOpenCurrentFile(file) != UNZ_OK)
- break;
- }
-
- } while(more);
-
- unzClose(file);
- return (TRUE);
-}
-#endif
-
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