mirror of
https://github.com/libretro/snes9x.git
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668 lines
20 KiB
C++
668 lines
20 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 - 2016 BearOso,
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OV2
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(c) Copyright 2011 - 2016 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 - 2016 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 - 2016 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 - 2016 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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#include "snes9x.h"
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#include "2xsai.h"
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#define ALL_COLOR_MASK (FIRST_COLOR_MASK | SECOND_COLOR_MASK | THIRD_COLOR_MASK)
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#ifdef GFX_MULTI_FORMAT
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static uint32 colorMask = 0, qcolorMask = 0, lowPixelMask = 0, qlowpixelMask = 0;
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#else
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#define colorMask (((~RGB_LOW_BITS_MASK & ALL_COLOR_MASK) << 16) | (~RGB_LOW_BITS_MASK & ALL_COLOR_MASK))
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#define qcolorMask (((~TWO_LOW_BITS_MASK & ALL_COLOR_MASK) << 16) | (~TWO_LOW_BITS_MASK & ALL_COLOR_MASK))
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#define lowPixelMask ((RGB_LOW_BITS_MASK << 16) | RGB_LOW_BITS_MASK)
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#define qlowpixelMask ((TWO_LOW_BITS_MASK << 16) | TWO_LOW_BITS_MASK)
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#endif
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static inline int GetResult (uint32, uint32, uint32, uint32);
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static inline int GetResult1 (uint32, uint32, uint32, uint32, uint32);
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static inline int GetResult2 (uint32, uint32, uint32, uint32, uint32);
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static inline uint32 INTERPOLATE (uint32, uint32);
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static inline uint32 Q_INTERPOLATE (uint32, uint32, uint32, uint32);
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static inline int GetResult (uint32 A, uint32 B, uint32 C, uint32 D)
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{
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int x = 0, y = 0, r = 0;
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if (A == C) x += 1; else if (B == C) y += 1;
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if (A == D) x += 1; else if (B == D) y += 1;
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if (x <= 1) r += 1;
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if (y <= 1) r -= 1;
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return (r);
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}
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static inline int GetResult1 (uint32 A, uint32 B, uint32 C, uint32 D, uint32 E)
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{
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int x = 0, y = 0, r = 0;
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if (A == C) x += 1; else if (B == C) y += 1;
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if (A == D) x += 1; else if (B == D) y += 1;
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if (x <= 1) r += 1;
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if (y <= 1) r -= 1;
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return (r);
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}
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static inline int GetResult2 (uint32 A, uint32 B, uint32 C, uint32 D, uint32 E)
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{
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int x = 0, y = 0, r = 0;
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if (A == C) x += 1; else if (B == C) y += 1;
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if (A == D) x += 1; else if (B == D) y += 1;
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if (x <= 1) r -= 1;
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if (y <= 1) r += 1;
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return (r);
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}
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static inline uint32 INTERPOLATE (uint32 A, uint32 B)
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{
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return (((A & colorMask) >> 1) + ((B & colorMask) >> 1) + (A & B & lowPixelMask));
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}
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static inline uint32 Q_INTERPOLATE (uint32 A, uint32 B, uint32 C, uint32 D)
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{
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uint32 x = ((A & qcolorMask) >> 2) + ((B & qcolorMask) >> 2) + ((C & qcolorMask) >> 2) + ((D & qcolorMask) >> 2);
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uint32 y = (A & qlowpixelMask) + (B & qlowpixelMask) + (C & qlowpixelMask) + (D & qlowpixelMask);
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y = (y >> 2) & qlowpixelMask;
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return (x + y);
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}
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bool8 S9xBlit2xSaIFilterInit (void)
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{
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#ifdef GFX_MULTI_FORMAT
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colorMask = ((~RGB_LOW_BITS_MASK & ALL_COLOR_MASK) << 16) | (~RGB_LOW_BITS_MASK & ALL_COLOR_MASK);
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qcolorMask = ((~TWO_LOW_BITS_MASK & ALL_COLOR_MASK) << 16) | (~TWO_LOW_BITS_MASK & ALL_COLOR_MASK);
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lowPixelMask = (RGB_LOW_BITS_MASK << 16) | RGB_LOW_BITS_MASK;
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qlowpixelMask = (TWO_LOW_BITS_MASK << 16) | TWO_LOW_BITS_MASK;
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#endif
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return (TRUE);
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}
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void S9xBlit2xSaIFilterDeinit (void)
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{
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return;
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}
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void SuperEagle (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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uint16 *bP;
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uint32 *dP;
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uint32 nextline = srcRowBytes >> 1;
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for (; height; height--)
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{
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bP = (uint16 *) srcPtr;
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dP = (uint32 *) dstPtr;
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for (int i = 0; i < width; i++)
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{
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uint32 color1, color2, color3, color4, color5, color6;
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uint32 colorA0, colorA1, colorA2, colorA3, colorB0, colorB1, colorB2, colorB3, colorS1, colorS2;
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uint32 product1a, product1b, product2a, product2b;
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colorB0 = *(bP - nextline - 1);
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colorB1 = *(bP - nextline );
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colorB2 = *(bP - nextline + 1);
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colorB3 = *(bP - nextline + 2);
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color4 = *(bP - 1);
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color5 = *(bP );
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color6 = *(bP + 1);
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colorS2 = *(bP + 2);
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color1 = *(bP + nextline - 1);
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color2 = *(bP + nextline );
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color3 = *(bP + nextline + 1);
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colorS1 = *(bP + nextline + 2);
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colorA0 = *(bP + nextline + nextline - 1);
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colorA1 = *(bP + nextline + nextline );
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colorA2 = *(bP + nextline + nextline + 1);
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colorA3 = *(bP + nextline + nextline + 2);
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if (color2 == color6 && color5 != color3)
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{
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product1b = product2a = color2;
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if ((color1 == color2 && color6 == colorS2) || (color2 == colorA1 && color6 == colorB2))
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{
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product1a = INTERPOLATE(color2, color5);
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product1a = INTERPOLATE(color2, product1a);
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product2b = INTERPOLATE(color2, color3);
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product2b = INTERPOLATE(color2, product2b);
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}
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else
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{
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product1a = INTERPOLATE(color5, color6);
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product2b = INTERPOLATE(color2, color3);
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}
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}
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else
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if (color5 == color3 && color2 != color6)
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{
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product2b = product1a = color5;
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if ((colorB1 == color5 && color3 == colorA2) || (color4 == color5 && color3 == colorS1))
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{
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product1b = INTERPOLATE(color5, color6);
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product1b = INTERPOLATE(color5, product1b);
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product2a = INTERPOLATE(color5, color2);
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product2a = INTERPOLATE(color5, product2a);
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}
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else
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{
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product1b = INTERPOLATE(color5, color6);
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product2a = INTERPOLATE(color2, color3);
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}
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}
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else
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if (color5 == color3 && color2 == color6 && color5 != color6)
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{
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int r = 0;
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r += GetResult(color6, color5, color1, colorA1);
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r += GetResult(color6, color5, color4, colorB1);
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r += GetResult(color6, color5, colorA2, colorS1);
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r += GetResult(color6, color5, colorB2, colorS2);
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if (r > 0)
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{
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product1b = product2a = color2;
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product1a = product2b = INTERPOLATE(color5, color6);
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}
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else
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if (r < 0)
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{
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product2b = product1a = color5;
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product1b = product2a = INTERPOLATE(color5, color6);
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}
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else
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{
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product2b = product1a = color5;
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product1b = product2a = color2;
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}
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}
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else
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{
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if ((color2 == color5) || (color3 == color6))
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{
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product1a = color5;
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product2a = color2;
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product1b = color6;
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product2b = color3;
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}
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else
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{
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product1b = product1a = INTERPOLATE(color5, color6);
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product1a = INTERPOLATE(color5, product1a);
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product1b = INTERPOLATE(color6, product1b);
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product2a = product2b = INTERPOLATE(color2, color3);
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product2a = INTERPOLATE(color2, product2a);
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product2b = INTERPOLATE(color3, product2b);
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}
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}
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#ifdef MSB_FIRST
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product1a = (product1a << 16) | product1b;
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product2a = (product2a << 16) | product2b;
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#else
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product1a = product1a | (product1b << 16);
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product2a = product2a | (product2b << 16);
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#endif
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*(dP) = product1a;
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*(dP + (dstRowBytes >> 2)) = product2a;
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bP++;
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dP++;
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}
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dstPtr += dstRowBytes << 1;
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srcPtr += srcRowBytes;
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}
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}
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void _2xSaI (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
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{
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uint16 *bP;
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uint32 *dP;
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uint32 nextline = srcRowBytes >> 1;
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for (; height; height--)
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{
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bP = (uint16 *) srcPtr;
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dP = (uint32 *) dstPtr;
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for (int i = 0; i < width; i++)
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{
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uint32 colorA, colorB, colorC, colorD, colorE, colorF, colorG, colorH, colorI, colorJ, colorK, colorL, colorM, colorN, colorO, colorP;
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uint32 product, product1, product2;
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colorI = *(bP - nextline - 1);
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colorE = *(bP - nextline );
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colorF = *(bP - nextline + 1);
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colorJ = *(bP - nextline + 2);
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colorG = *(bP - 1);
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colorA = *(bP );
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colorB = *(bP + 1);
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colorK = *(bP + 2);
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colorH = *(bP + nextline - 1);
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colorC = *(bP + nextline );
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colorD = *(bP + nextline + 1);
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colorL = *(bP + nextline + 2);
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colorM = *(bP + nextline + nextline - 1);
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colorN = *(bP + nextline + nextline );
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colorO = *(bP + nextline + nextline + 1);
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colorP = *(bP + nextline + nextline + 2);
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if ((colorA == colorD) && (colorB != colorC))
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{
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if (((colorA == colorE) && (colorB == colorL)) || ((colorA == colorC) && (colorA == colorF) && (colorB != colorE) && (colorB == colorJ)))
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product = colorA;
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else
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product = INTERPOLATE(colorA, colorB);
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if (((colorA == colorG) && (colorC == colorO)) || ((colorA == colorB) && (colorA == colorH) && (colorG != colorC) && (colorC == colorM)))
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product1 = colorA;
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else
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product1 = INTERPOLATE(colorA, colorC);
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product2 = colorA;
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}
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else
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if ((colorB == colorC) && (colorA != colorD))
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{
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if (((colorB == colorF) && (colorA == colorH)) || ((colorB == colorE) && (colorB == colorD) && (colorA != colorF) && (colorA == colorI)))
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product = colorB;
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else
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product = INTERPOLATE(colorA, colorB);
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if (((colorC == colorH) && (colorA == colorF)) || ((colorC == colorG) && (colorC == colorD) && (colorA != colorH) && (colorA == colorI)))
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product1 = colorC;
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else
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product1 = INTERPOLATE(colorA, colorC);
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product2 = colorB;
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}
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else
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if ((colorA == colorD) && (colorB == colorC))
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{
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if (colorA == colorB)
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{
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product = colorA;
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product1 = colorA;
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product2 = colorA;
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}
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else
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{
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int r = 0;
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product1 = INTERPOLATE(colorA, colorC);
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product = INTERPOLATE(colorA, colorB);
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r += GetResult1(colorA, colorB, colorG, colorE, colorI);
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r += GetResult2(colorB, colorA, colorK, colorF, colorJ);
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r += GetResult2(colorB, colorA, colorH, colorN, colorM);
|
|
r += GetResult1(colorA, colorB, colorL, colorO, colorP);
|
|
|
|
if (r > 0)
|
|
product2 = colorA;
|
|
else
|
|
if (r < 0)
|
|
product2 = colorB;
|
|
else
|
|
product2 = Q_INTERPOLATE(colorA, colorB, colorC, colorD);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
product2 = Q_INTERPOLATE(colorA, colorB, colorC, colorD);
|
|
|
|
if ((colorA == colorC) && (colorA == colorF) && (colorB != colorE) && (colorB == colorJ))
|
|
product = colorA;
|
|
else
|
|
if ((colorB == colorE) && (colorB == colorD) && (colorA != colorF) && (colorA == colorI))
|
|
product = colorB;
|
|
else
|
|
product = INTERPOLATE(colorA, colorB);
|
|
|
|
if ((colorA == colorB) && (colorA == colorH) && (colorG != colorC) && (colorC == colorM))
|
|
product1 = colorA;
|
|
else
|
|
if ((colorC == colorG) && (colorC == colorD) && (colorA != colorH) && (colorA == colorI))
|
|
product1 = colorC;
|
|
else
|
|
product1 = INTERPOLATE(colorA, colorC);
|
|
}
|
|
|
|
#ifdef MSB_FIRST
|
|
product = (colorA << 16) | product;
|
|
product1 = (product1 << 16) | product2;
|
|
#else
|
|
product = colorA | (product << 16);
|
|
product1 = product1 | (product2 << 16);
|
|
#endif
|
|
|
|
*(dP) = product;
|
|
*(dP + (dstRowBytes >> 2)) = product1;
|
|
|
|
bP++;
|
|
dP++;
|
|
}
|
|
|
|
dstPtr += dstRowBytes << 1;
|
|
srcPtr += srcRowBytes;
|
|
}
|
|
}
|
|
|
|
void Super2xSaI (uint8 *srcPtr, int srcRowBytes, uint8 *dstPtr, int dstRowBytes, int width, int height)
|
|
{
|
|
uint16 *bP;
|
|
uint32 *dP;
|
|
uint32 nextline = srcRowBytes >> 1;
|
|
|
|
for (; height; height--)
|
|
{
|
|
bP = (uint16 *) srcPtr;
|
|
dP = (uint32 *) dstPtr;
|
|
|
|
for (int i = 0; i < width; i++)
|
|
{
|
|
uint32 color1, color2, color3, color4, color5, color6;
|
|
uint32 colorA0, colorA1, colorA2, colorA3, colorB0, colorB1, colorB2, colorB3, colorS1, colorS2;
|
|
uint32 product1a, product1b, product2a, product2b;
|
|
|
|
colorB0 = *(bP - nextline - 1);
|
|
colorB1 = *(bP - nextline );
|
|
colorB2 = *(bP - nextline + 1);
|
|
colorB3 = *(bP - nextline + 2);
|
|
|
|
color4 = *(bP - 1);
|
|
color5 = *(bP );
|
|
color6 = *(bP + 1);
|
|
colorS2 = *(bP + 2);
|
|
|
|
color1 = *(bP + nextline - 1);
|
|
color2 = *(bP + nextline );
|
|
color3 = *(bP + nextline + 1);
|
|
colorS1 = *(bP + nextline + 2);
|
|
|
|
colorA0 = *(bP + nextline + nextline - 1);
|
|
colorA1 = *(bP + nextline + nextline );
|
|
colorA2 = *(bP + nextline + nextline + 1);
|
|
colorA3 = *(bP + nextline + nextline + 2);
|
|
|
|
if (color2 == color6 && color5 != color3)
|
|
product2b = product1b = color2;
|
|
else
|
|
if (color5 == color3 && color2 != color6)
|
|
product2b = product1b = color5;
|
|
else
|
|
if (color5 == color3 && color2 == color6 && color5 != color6)
|
|
{
|
|
int r = 0;
|
|
|
|
r += GetResult(color6, color5, color1, colorA1);
|
|
r += GetResult(color6, color5, color4, colorB1);
|
|
r += GetResult(color6, color5, colorA2, colorS1);
|
|
r += GetResult(color6, color5, colorB2, colorS2);
|
|
|
|
if (r > 0)
|
|
product2b = product1b = color6;
|
|
else
|
|
if (r < 0)
|
|
product2b = product1b = color5;
|
|
else
|
|
product2b = product1b = INTERPOLATE(color5, color6);
|
|
}
|
|
else
|
|
{
|
|
if (color6 == color3 && color3 == colorA1 && color2 != colorA2 && color3 != colorA0)
|
|
product2b = Q_INTERPOLATE(color3, color3, color3, color2);
|
|
else
|
|
if (color5 == color2 && color2 == colorA2 && colorA1 != color3 && color2 != colorA3)
|
|
product2b = Q_INTERPOLATE(color2, color2, color2, color3);
|
|
else
|
|
product2b = INTERPOLATE(color2, color3);
|
|
|
|
if (color6 == color3 && color6 == colorB1 && color5 != colorB2 && color6 != colorB0)
|
|
product1b = Q_INTERPOLATE(color6, color6, color6, color5);
|
|
else
|
|
if (color5 == color2 && color5 == colorB2 && colorB1 != color6 && color5 != colorB3)
|
|
product1b = Q_INTERPOLATE(color6, color5, color5, color5);
|
|
else
|
|
product1b = INTERPOLATE (color5, color6);
|
|
}
|
|
|
|
if (color5 == color3 && color2 != color6 && color4 == color5 && color5 != colorA2)
|
|
product2a = INTERPOLATE(color2, color5);
|
|
else
|
|
if (color5 == color1 && color6 == color5 && color4 != color2 && color5 != colorA0)
|
|
product2a = INTERPOLATE(color2, color5);
|
|
else
|
|
product2a = color2;
|
|
|
|
if (color2 == color6 && color5 != color3 && color1 == color2 && color2 != colorB2)
|
|
product1a = INTERPOLATE(color2, color5);
|
|
else
|
|
if (color4 == color2 && color3 == color2 && color1 != color5 && color2 != colorB0)
|
|
product1a = INTERPOLATE(color2, color5);
|
|
else
|
|
product1a = color5;
|
|
|
|
#ifdef MSB_FIRST
|
|
product1a = (product1a << 16) | product1b;
|
|
product2a = (product2a << 16) | product2b;
|
|
#else
|
|
product1a = product1a | (product1b << 16);
|
|
product2a = product2a | (product2b << 16);
|
|
#endif
|
|
|
|
*(dP) = product1a;
|
|
*(dP +(dstRowBytes >> 2)) = product2a;
|
|
|
|
bP++;
|
|
dP++;
|
|
}
|
|
|
|
dstPtr += dstRowBytes << 1;
|
|
srcPtr += srcRowBytes;
|
|
}
|
|
}
|