mirror of
https://github.com/libretro/snes9x.git
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6591ee92a2
* Call `unzClose(file)` outside of the assert clause. In Release mode, any statement in an assert clause is not called, causing a memory leak. If the file does not close successfully, `assert(FAIL)` is called.
349 lines
9.7 KiB
C++
349 lines
9.7 KiB
C++
/***********************************************************************************
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
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Jerremy Koot (jkoot@snes9x.com)
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(c) Copyright 2002 - 2004 Matthew Kendora
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(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
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(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
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(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
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(c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
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Kris Bleakley (codeviolation@hotmail.com)
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(c) Copyright 2002 - 2010 Brad Jorsch (anomie@users.sourceforge.net),
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Nach (n-a-c-h@users.sourceforge.net),
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(c) Copyright 2002 - 2011 zones (kasumitokoduck@yahoo.com)
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(c) Copyright 2006 - 2007 nitsuja
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(c) Copyright 2009 - 2018 BearOso,
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OV2
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(c) Copyright 2017 qwertymodo
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(c) Copyright 2011 - 2017 Hans-Kristian Arntzen,
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Daniel De Matteis
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(Under no circumstances will commercial rights be given)
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BS-X C emulator code
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(c) Copyright 2005 - 2006 Dreamer Nom,
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zones
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C4 x86 assembler and some C emulation code
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(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
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Nach,
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zsKnight (zsknight@zsnes.com)
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C4 C++ code
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(c) Copyright 2003 - 2006 Brad Jorsch,
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Nach
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DSP-1 emulator code
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(c) Copyright 1998 - 2006 _Demo_,
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Andreas Naive (andreasnaive@gmail.com),
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Gary Henderson,
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Ivar (ivar@snes9x.com),
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John Weidman,
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Kris Bleakley,
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Matthew Kendora,
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Nach,
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neviksti (neviksti@hotmail.com)
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DSP-2 emulator code
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(c) Copyright 2003 John Weidman,
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Kris Bleakley,
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Lord Nightmare (lord_nightmare@users.sourceforge.net),
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Matthew Kendora,
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neviksti
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DSP-3 emulator code
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(c) Copyright 2003 - 2006 John Weidman,
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Kris Bleakley,
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Lancer,
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z80 gaiden
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DSP-4 emulator code
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(c) Copyright 2004 - 2006 Dreamer Nom,
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John Weidman,
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Kris Bleakley,
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Nach,
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z80 gaiden
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OBC1 emulator code
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(c) Copyright 2001 - 2004 zsKnight,
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pagefault (pagefault@zsnes.com),
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Kris Bleakley
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Ported from x86 assembler to C by sanmaiwashi
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SPC7110 and RTC C++ emulator code used in 1.39-1.51
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(c) Copyright 2002 Matthew Kendora with research by
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zsKnight,
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John Weidman,
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Dark Force
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SPC7110 and RTC C++ emulator code used in 1.52+
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(c) Copyright 2009 byuu,
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neviksti
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S-DD1 C emulator code
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(c) Copyright 2003 Brad Jorsch with research by
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Andreas Naive,
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John Weidman
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S-RTC C emulator code
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(c) Copyright 2001 - 2006 byuu,
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John Weidman
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ST010 C++ emulator code
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(c) Copyright 2003 Feather,
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John Weidman,
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Kris Bleakley,
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Matthew Kendora
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Super FX x86 assembler emulator code
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(c) Copyright 1998 - 2003 _Demo_,
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pagefault,
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zsKnight
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Super FX C emulator code
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(c) Copyright 1997 - 1999 Ivar,
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Gary Henderson,
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John Weidman
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Sound emulator code used in 1.5-1.51
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(c) Copyright 1998 - 2003 Brad Martin
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(c) Copyright 1998 - 2006 Charles Bilyue'
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Sound emulator code used in 1.52+
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(c) Copyright 2004 - 2007 Shay Green (gblargg@gmail.com)
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S-SMP emulator code used in 1.54+
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(c) Copyright 2016 byuu
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SH assembler code partly based on x86 assembler code
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(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
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2xSaI filter
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(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
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HQ2x, HQ3x, HQ4x filters
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(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
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NTSC filter
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(c) Copyright 2006 - 2007 Shay Green
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GTK+ GUI code
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(c) Copyright 2004 - 2018 BearOso
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Win32 GUI code
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(c) Copyright 2003 - 2006 blip,
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funkyass,
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Matthew Kendora,
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Nach,
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nitsuja
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(c) Copyright 2009 - 2018 OV2
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Mac OS GUI code
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(c) Copyright 1998 - 2001 John Stiles
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(c) Copyright 2001 - 2011 zones
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Libretro port
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(c) Copyright 2011 - 2017 Hans-Kristian Arntzen,
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Daniel De Matteis
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(Under no circumstances will commercial rights be given)
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Specific ports contains the works of other authors. See headers in
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individual files.
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Snes9x homepage: http://www.snes9x.com/
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Permission to use, copy, modify and/or distribute Snes9x in both binary
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and source form, for non-commercial purposes, is hereby granted without
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fee, providing that this license information and copyright notice appear
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with all copies and any derived work.
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This software is provided 'as-is', without any express or implied
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warranty. In no event shall the authors be held liable for any damages
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arising from the use of this software or it's derivatives.
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Snes9x is freeware for PERSONAL USE only. Commercial users should
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seek permission of the copyright holders first. Commercial use includes,
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but is not limited to, charging money for Snes9x or software derived from
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Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
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using Snes9x as a promotion for your commercial product.
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The copyright holders request that bug fixes and improvements to the code
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should be forwarded to them so everyone can benefit from the modifications
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in future versions.
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Super NES and Super Nintendo Entertainment System are trademarks of
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Nintendo Co., Limited and its subsidiary companies.
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***********************************************************************************/
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#ifdef UNZIP_SUPPORT
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#include <assert.h>
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#include <ctype.h>
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#ifdef SYSTEM_ZIP
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#include <minizip/unzip.h>
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#else
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#include "unzip/unzip.h"
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#endif
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#include "snes9x.h"
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#include "memmap.h"
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bool8 LoadZip (const char *zipname, uint32 *TotalFileSize, uint8 *buffer)
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{
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*TotalFileSize = 0;
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unzFile file = unzOpen(zipname);
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if (file == NULL)
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return (FALSE);
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// find largest file in zip file (under MAX_ROM_SIZE) or a file with extension .1, or a file named program.rom
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char filename[132];
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uint32 filesize = 0;
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int port = unzGoToFirstFile(file);
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unz_file_info info;
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while (port == UNZ_OK)
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{
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char name[132];
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unzGetCurrentFileInfo(file, &info, name, 128, NULL, 0, NULL, 0);
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if (info.uncompressed_size > CMemory::MAX_ROM_SIZE + 512)
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{
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port = unzGoToNextFile(file);
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continue;
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}
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if (info.uncompressed_size > filesize)
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{
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strcpy(filename, name);
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filesize = info.uncompressed_size;
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}
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int len = strlen(name);
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if (len > 2 && name[len - 2] == '.' && name[len - 1] == '1')
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{
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strcpy(filename, name);
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filesize = info.uncompressed_size;
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break;
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}
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if (strncasecmp(name, "program.rom", 11) == 0)
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{
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strcpy(filename, name);
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filesize = info.uncompressed_size;
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break;
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}
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port = unzGoToNextFile(file);
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}
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int len = strlen(zipname);
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if (!(port == UNZ_END_OF_LIST_OF_FILE || port == UNZ_OK) || filesize == 0 ||
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(len > 5 && strcasecmp(zipname + len - 5, ".msu1") == 0 && strcasecmp(filename, "program.rom") != 0))
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{
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if (unzClose(file) != UNZ_OK)
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assert(FALSE);
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return (FALSE);
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}
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// find extension
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char tmp[2] = { 0, 0 };
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char *ext = strrchr(filename, '.');
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if (ext)
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ext++;
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else
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ext = tmp;
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uint8 *ptr = buffer;
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bool8 more = FALSE;
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unzLocateFile(file, filename, 0);
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unzGetCurrentFileInfo(file, &info, filename, 128, NULL, 0, NULL, 0);
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if (unzOpenCurrentFile(file) != UNZ_OK)
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{
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unzClose(file);
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return (FALSE);
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}
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do
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{
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assert(info.uncompressed_size <= CMemory::MAX_ROM_SIZE + 512);
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uint32 FileSize = info.uncompressed_size;
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int l = unzReadCurrentFile(file, ptr, FileSize);
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if (unzCloseCurrentFile(file) == UNZ_CRCERROR)
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{
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unzClose(file);
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return (FALSE);
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}
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if (l <= 0 || l != (int) FileSize)
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{
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unzClose(file);
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return (FALSE);
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}
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FileSize = Memory.HeaderRemove(FileSize, ptr);
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ptr += FileSize;
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*TotalFileSize += FileSize;
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int len;
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if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 512 && (isdigit(ext[0]) && ext[1] == 0 && ext[0] < '9'))
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{
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more = TRUE;
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ext[0]++;
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}
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else
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if (ptr - Memory.ROM < CMemory::MAX_ROM_SIZE + 512)
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{
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if (ext == tmp)
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len = strlen(filename);
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else
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len = ext - filename - 1;
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if ((len == 7 || len == 8) && strncasecmp(filename, "sf", 2) == 0 &&
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isdigit(filename[2]) && isdigit(filename[3]) && isdigit(filename[4]) &&
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isdigit(filename[5]) && isalpha(filename[len - 1]))
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{
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more = TRUE;
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filename[len - 1]++;
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}
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}
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else
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more = FALSE;
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if (more)
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{
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if (unzLocateFile(file, filename, 0) != UNZ_OK ||
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unzGetCurrentFileInfo(file, &info, filename, 128, NULL, 0, NULL, 0) != UNZ_OK ||
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unzOpenCurrentFile(file) != UNZ_OK)
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break;
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}
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} while (more);
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unzClose(file);
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return (TRUE);
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}
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#endif
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