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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 / 0x2000;
+ calc_size *= 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 / 0x2000;
+ calc_size *= 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 (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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