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|
/*
* Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
*
* (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and
* Jerremy Koot (jkoot@snes9x.com)
*
* Super FX C emulator code
* (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and
* Gary Henderson.
* Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_.
*
* DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson.
* C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_.
* C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com).
*
* DOS port code 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.
*/
//#define MMX
#if !defined(_SNESPPC) && !defined(__GIZ__) && !defined(__GP2X__) && !defined(__WIZ__)
#include "snes9x/snes9x.h"
#include "snes9x/port.h"
#include "snes9x/gfx.h"
#else
#include "snes9x.h"
#include "port.h"
#include "gfx.h"
#endif
#ifdef MMX
EXTERN_C void _2xSaILine (uint8 *srcPtr, uint8 *deltaPtr, uint32 srcPitch, uint32 width,
uint8 *dstPtr, uint32 dstPitch);
EXTERN_C void _2xSaISuperEagleLine (uint8 *srcPtr, uint8 *deltaPtr, uint32 srcPitch, uint32 width,
uint8 *dstPtr, uint32 dstPitch);
EXTERN_C int Init_2xSaIMMX (uint32 BitFormat);
#endif
bool mmx_cpu = false;
static uint32 colorMask = 0xF7DEF7DE;
static uint32 lowPixelMask = 0x08210821;
static uint32 qcolorMask = 0xE79CE79C;
static uint32 qlowpixelMask = 0x18631863;
int Init_2xSaI(uint32 BitFormat)
{
if (BitFormat == 565)
{
colorMask = 0xF7DEF7DE;
lowPixelMask = 0x08210821;
qcolorMask = 0xE79CE79C;
qlowpixelMask = 0x18631863;
}
else
if (BitFormat == 555)
{
colorMask = 0x7BDE7BDE;
lowPixelMask = 0x04210421;
qcolorMask = 0x739C739C;
qlowpixelMask = 0x0C630C63;
}
else
{
return 0;
}
#ifdef MMX
Init_2xSaIMMX(BitFormat);
#endif
return 1;
}
STATIC inline int GetResult1(uint32 A, uint32 B, uint32 C, uint32 D, uint32 E)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C) x+=1; else if (B == C) y+=1;
if (A == D) x+=1; else if (B == D) y+=1;
if (x <= 1) r+=1;
if (y <= 1) r-=1;
return r;
}
STATIC inline int GetResult2(uint32 A, uint32 B, uint32 C, uint32 D, uint32 E)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C) x+=1; else if (B == C) y+=1;
if (A == D) x+=1; else if (B == D) y+=1;
if (x <= 1) r-=1;
if (y <= 1) r+=1;
return r;
}
STATIC inline int GetResult(uint32 A, uint32 B, uint32 C, uint32 D)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C) x+=1; else if (B == C) y+=1;
if (A == D) x+=1; else if (B == D) y+=1;
if (x <= 1) r+=1;
if (y <= 1) r-=1;
return r;
}
STATIC inline uint32 INTERPOLATE(uint32 A, uint32 B)
{
if (A !=B)
{
return ( ((A & colorMask) >> 1) + ((B & colorMask) >> 1) + (A & B & lowPixelMask) );
}
else return A;
}
STATIC inline uint32 Q_INTERPOLATE(uint32 A, uint32 B, uint32 C, uint32 D)
{
register uint32 x = ((A & qcolorMask) >> 2) +
((B & qcolorMask) >> 2) +
((C & qcolorMask) >> 2) +
((D & qcolorMask) >> 2);
register uint32 y = (A & qlowpixelMask) +
(B & qlowpixelMask) +
(C & qlowpixelMask) +
(D & qlowpixelMask);
y = (y>>2) & qlowpixelMask;
return x+y;
}
#define HOR
#define VER
void Super2xSaI(uint8 *srcPtr, uint32 srcPitch,
uint8 *deltaPtr,
uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
uint32 *dP;
uint16 *bP;
#ifdef MMX_BLA //no MMX version yet
if (cpu_mmx && width != 512)
{
for (height; height; height-=1)
{
bP = (uint16 *) srcPtr;
xP = (uint16 *) deltaPtr;
dP = (uint32 *) dstPtr;
_2xSaISuperEagleLine ((uint8 *) bP, (uint8 *) xP, srcPitch, width, (uint8 *) dP, dstPitch);
dstPtr += dstPitch << 1;
srcPtr += srcPitch;
deltaPtr += srcPitch;
}
}
else
{
#endif
uint32 Nextline = srcPitch >> 1;
for (height; height; height-=1)
{
bP = (uint16 *) srcPtr;
dP = (uint32 *) dstPtr;
for (uint32 finish = width; finish; finish -= 1 )
{
uint32 color4, color5, color6;
uint32 color1, color2, color3;
uint32 colorA0, colorA1, colorA2, colorA3,
colorB0, colorB1, colorB2, colorB3,
colorS1, colorS2;
uint32 product1a, product1b,
product2a, product2b;
//--------------------------------------- B1 B2
// 4 5 6 S2
// 1 2 3 S1
// A1 A2
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)
{
register 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
{
#ifdef VER
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
#endif
product2b = INTERPOLATE (color2, color3);
#ifdef VER
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
#endif
product1b = INTERPOLATE (color5, color6);
}
#ifdef HOR
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
#endif
product2a = color2;
#ifdef HOR
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
#endif
product1a = color5;
product1a = product1a | (product1b << 16);
product2a = product2a | (product2b << 16);
*(dP) = product1a;
*(dP+(dstPitch>>2)) = product2a;
bP += 1;
dP += 1;
}//end of for ( finish= width etc..)
dstPtr += dstPitch << 1;
srcPtr += srcPitch;
deltaPtr += srcPitch;
}; //endof: for (height; height; height--)
#ifdef MMX_BLA
}
#endif
}
/*ONLY use with 640x480x16 or higher resolutions*/
/*Only use this if 2*width * 2*height fits on the current screen*/
void SuperEagle(uint8 *srcPtr, uint32 srcPitch,
uint8 *deltaPtr,
uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
uint32 *dP;
uint16 *bP;
#if !defined(_SNESPPC) && !defined(__GIZ__) && !defined(__GP2X__) && !defined(__WIZ__)
uint16 *xP;
#endif
#ifdef MMX
if (mmx_cpu && width != 512)
{
for (height; height; height-=1)
{
bP = (uint16 *) srcPtr;
xP = (uint16 *) deltaPtr;
dP = (uint32 *) dstPtr;
_2xSaISuperEagleLine ((uint8 *) bP, (uint8 *) xP, srcPitch, width, (uint8 *)dP, dstPitch);
dstPtr += dstPitch << 1;
srcPtr += srcPitch;
deltaPtr += srcPitch;
}
}
else
{
#endif
uint32 Nextline = srcPitch >> 1;
for (height; height; height-=1)
{
bP = (uint16 *) srcPtr;
dP = (uint32 *) dstPtr;
for (uint32 finish = width; finish; finish -= 1 )
{
uint32 color4, color5, color6;
uint32 color1, color2, color3;
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)
{
product1b = product2a = color2;
if ((color1 == color2 && color6 == colorS2) ||
(color2 == colorA1 && color6 == colorB2))
{
product1a = INTERPOLATE (color2, color5);
product1a = INTERPOLATE (color2, product1a);
product2b = INTERPOLATE (color2, color3);
product2b = INTERPOLATE (color2, product2b);
// product1a = color2;
// product2b = color2;
}
else
{
product1a = INTERPOLATE (color5, color6);
product2b = INTERPOLATE (color2, color3);
}
}
else
if (color5 == color3 && color2 != color6)
{
product2b = product1a = color5;
if ((colorB1 == color5 && color3 == colorA2) ||
(color4 == color5 && color3 == colorS1))
{
product1b = INTERPOLATE (color5, color6);
product1b = INTERPOLATE (color5, product1b);
product2a = INTERPOLATE (color5, color2);
product2a = INTERPOLATE (color5, product2a);
// product1b = color5;
// product2a = color5;
}
else
{
product1b = INTERPOLATE (color5, color6);
product2a = INTERPOLATE (color2, color3);
}
}
else
if (color5 == color3 && color2 == color6 && color5 != color6)
{
register 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)
{
product1b = product2a = color2;
product1a = product2b = INTERPOLATE (color5, color6);
}
else
if (r < 0)
{
product2b = product1a = color5;
product1b = product2a = INTERPOLATE (color5, color6);
}
else
{
product2b = product1a = color5;
product1b = product2a = color2;
}
}
else
{
if ((color2 == color5) || (color3 == color6))
{
product1a = color5;
product2a = color2;
product1b = color6;
product2b = color3;
}
else
{
product1b = product1a = INTERPOLATE (color5, color6);
product1a = INTERPOLATE (color5, product1a);
product1b = INTERPOLATE (color6, product1b);
product2a = product2b = INTERPOLATE (color2, color3);
product2a = INTERPOLATE (color2, product2a);
product2b = INTERPOLATE (color3, product2b);
}
}
product1a = product1a | (product1b << 16);
product2a = product2a | (product2b << 16);
*(dP) = product1a;
*(dP+(dstPitch>>2)) = product2a;
bP += 1;
dP += 1;
}//end of for ( finish= width etc..)
dstPtr += dstPitch << 1;
srcPtr += srcPitch;
deltaPtr += srcPitch;
}; //endof: for (height; height; height--)
#ifdef MMX
}
#endif
}
/*ONLY use with 640x480x16 or higher resolutions*/
/*Only use this if 2*width * 2*height fits on the current screen*/
void _2xSaI(uint8 *srcPtr, uint32 srcPitch,
uint8 *deltaPtr,
uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
uint32 *dP;
uint16 *bP;
#if !defined(_SNESPPC) && !defined(__GIZ__) && !defined(__GP2X__) && !defined(__WIZ__)
uint16 *xP;
#endif
#ifdef MMX
if (mmx_cpu && width != 512)
{
for (height; height; height-=1)
{
bP = (uint16 *) srcPtr;
xP = (uint16 *) deltaPtr;
dP = (uint32 *) dstPtr;
_2xSaILine ((uint8 *) bP, (uint8 *) xP, srcPitch, width, (uint8 *)dP, dstPitch);
dstPtr += dstPitch << 1;
srcPtr += srcPitch;
deltaPtr += srcPitch;
}
}
else
{
#endif
uint32 Nextline = srcPitch >> 1;
for (height; height; height-=1)
{
bP = (uint16 *) srcPtr;
dP = (uint32 *) dstPtr;
for (uint32 finish = width; finish; finish -= 1 )
{
register uint32 colorA, colorB;
uint32 colorC, colorD,
colorE, colorF, colorG, colorH,
colorI, colorJ, colorK, colorL,
colorM, colorN, colorO, colorP;
uint32 product, product1, product2;
//---------------------------------------
// Map of the pixels: I|E F|J
// G|A B|K
// H|C D|L
// M|N O|P
colorI = *(bP- Nextline - 1);
colorE = *(bP- Nextline);
colorF = *(bP- Nextline + 1);
colorJ = *(bP- Nextline + 2);
colorG = *(bP - 1);
colorA = *(bP);
colorB = *(bP + 1);
colorK = *(bP + 2);
colorH = *(bP + Nextline - 1);
colorC = *(bP + Nextline);
colorD = *(bP + Nextline + 1);
colorL = *(bP + Nextline + 2);
colorM = *(bP + Nextline + Nextline - 1);
colorN = *(bP + Nextline + Nextline);
colorO = *(bP + Nextline + Nextline + 1);
colorP = *(bP + Nextline + Nextline + 2);
if ((colorA == colorD) && (colorB != colorC))
{
if ( ((colorA == colorE) && (colorB == colorL)) ||
((colorA == colorC) && (colorA == colorF) && (colorB != colorE) && (colorB == colorJ)) )
{
product = colorA;
}
else
{
product = INTERPOLATE(colorA, colorB);
}
if (((colorA == colorG) && (colorC == colorO)) ||
((colorA == colorB) && (colorA == colorH) && (colorG != colorC) && (colorC == colorM)) )
{
product1 = colorA;
}
else
{
product1 = INTERPOLATE(colorA, colorC);
}
product2 = colorA;
}
else
if ((colorB == colorC) && (colorA != colorD))
{
if (((colorB == colorF) && (colorA == colorH)) ||
((colorB == colorE) && (colorB == colorD) && (colorA != colorF) && (colorA == colorI)) )
{
product = colorB;
}
else
{
product = INTERPOLATE(colorA, colorB);
}
if (((colorC == colorH) && (colorA == colorF)) ||
((colorC == colorG) && (colorC == colorD) && (colorA != colorH) && (colorA == colorI)) )
{
product1 = colorC;
}
else
{
product1 = INTERPOLATE(colorA, colorC);
}
product2 = colorB;
}
else
if ((colorA == colorD) && (colorB == colorC))
{
if (colorA == colorB)
{
product = colorA;
product1 = colorA;
product2 = colorA;
}
else
{
register int r = 0;
product1 = INTERPOLATE(colorA, colorC);
product = INTERPOLATE(colorA, colorB);
r += GetResult1 (colorA, colorB, colorG, colorE, colorI);
r += GetResult2 (colorB, colorA, colorK, colorF, colorJ);
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);
}
}
product = colorA | (product << 16);
product1 = product1 | (product2 << 16);
*(dP) = product;
*(dP+(dstPitch>>2)) = product1;
bP += 1;
dP += 1;
}//end of for ( finish= width etc..)
dstPtr += dstPitch << 1;
srcPtr += srcPitch;
deltaPtr += srcPitch;
}; //endof: for (height; height; height--)
#ifdef MMX
}
#endif
}
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