/****************************************************************************
 * Snes9x 1.51 Nintendo Wii/Gamecube Port
 *
 * Michniewski 2008
 *
 * HQ2x, HQ3x, HQ4x filters
 * (c) Copyright 2003         Maxim Stepin (maxim@hiend3d.com)
 *
 * filter.cpp
 *
 * Adapted from Snes9x Win32/MacOSX ports
 * Video Filter Code (hq2x)
 ****************************************************************************/
#include <gccore.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ogcsys.h>
#include <unistd.h>
#include <malloc.h>

#include "filter.h"
#include "video.h"
#include "snes9xGX.h"
#include "memmap.h"

#include "menudraw.h"

#define NUMBITS (16)

static int RGBtoYUV[1<<NUMBITS];
static uint16 RGBtoBright[1<<NUMBITS];
 
TFilterMethod FilterMethod = RenderPlain;
//TFilterMethod FilterMethodHiRes = RenderPlain;

//
// Functions:
//

bool
GetFilterHiResSupport (RenderFilter filterID)
{
	switch(filterID)
	{
		case FILTER_NONE:
			return true;

		default:
			return false;
	}
}

const char*
GetFilterName (RenderFilter filterID)
{
	switch(filterID)
	{
		default: return "Unknown";
		case FILTER_NONE: return "None";
		case FILTER_HQ2X: return "hq2x";
		case FILTER_HQ2XS: return "hq2x Soft";
		case FILTER_HQ2XBOLD: return "hq2x Bold";
	}
}

// Return pointer to appropriate function
TFilterMethod
FilterToMethod (RenderFilter filterID)
{
	switch(filterID)
	{
        default:
        case FILTER_NONE:       return RenderPlain;
        case FILTER_HQ2X:       return RenderHQ2X<FILTER_HQ2X>;
        case FILTER_HQ2XS:      return RenderHQ2X<FILTER_HQ2XS>;
        case FILTER_HQ2XBOLD:   return RenderHQ2X<FILTER_HQ2XBOLD>;
	}
}

int GetFilterScale(RenderFilter filterID)
{
	switch(filterID)
	{
		case FILTER_NONE:
			return 1;

		default:
        case FILTER_HQ2X:
        case FILTER_HQ2XS:
        case FILTER_HQ2XBOLD:
			return 2;
	}
}

void
SelectFilterMethod ()
{
	//WaitPrompt ((char*)"Select Filter Method.");	// debug

	FilterMethod = FilterToMethod((RenderFilter)GCSettings.FilterMethod);
	//FilterMethodHiRes = FilterToMethod((RenderFilter)GCSettings.FilterMethodHiRes);
	
	// check whether or not we need filter memory (alloc or free it)
}

//
// Filter Codes:
//

// No enlargement, just render to the screen
void
RenderPlain (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
	if (dstPtr == NULL)
	{
		WaitPrompt((char*)"dstPtr is NULL. exiting!");
		exit(1);
	}
	//memcpy (dstPtr, srcPtr, width*height*srcPitch);
	return;
}

//
// HQ2X Filter Code:
//

#define	Mask_2	0x07E0	// 00000 111111 00000
#define	Mask13	0xF81F	// 11111 000000 11111

#define	Ymask	0xFF0000
#define	Umask	0x00FF00
#define	Vmask	0x0000FF
#define	trY		0x300000
#define	trU		0x000700
#define	trV		0x000006

#define Interp01(c1, c2) \
	((((c1) == (c2)) ? (c1) : \
	(((((((c1) & Mask_2) *  3) + ((c2) & Mask_2)) >> 2) & Mask_2) + \
	 ((((((c1) & Mask13) *  3) + ((c2) & Mask13)) >> 2) & Mask13))))

#define Interp02(c1, c2, c3) \
	((((((c1) & Mask_2) *  2 + ((c2) & Mask_2)     + ((c3) & Mask_2)    ) >> 2) & Mask_2) + \
	(((((c1) & Mask13) *  2 + ((c2) & Mask13)     + ((c3) & Mask13)    ) >> 2) & Mask13))

#define Interp06(c1, c2, c3) \
	((((((c1) & Mask_2) *  5 + ((c2) & Mask_2) * 2 + ((c3) & Mask_2)    ) >> 3) & Mask_2) + \
	(((((c1) & Mask13) *  5 + ((c2) & Mask13) * 2 + ((c3) & Mask13)    ) >> 3) & Mask13))

#define Interp07(c1, c2, c3) \
	((((((c1) & Mask_2) *  6 + ((c2) & Mask_2)     + ((c3) & Mask_2)    ) >> 3) & Mask_2) + \
	(((((c1) & Mask13) *  6 + ((c2) & Mask13)     + ((c3) & Mask13)    ) >> 3) & Mask13))

#define Interp09(c1, c2, c3) \
	((((((c1) & Mask_2) *  2 + ((c2) & Mask_2) * 3 + ((c3) & Mask_2) * 3) >> 3) & Mask_2) + \
	(((((c1) & Mask13) *  2 + ((c2) & Mask13) * 3 + ((c3) & Mask13) * 3) >> 3) & Mask13))

#define Interp10(c1, c2, c3) \
	((((((c1) & Mask_2) * 14 + ((c2) & Mask_2)     + ((c3) & Mask_2)    ) >> 4) & Mask_2) + \
	(((((c1) & Mask13) * 14 + ((c2) & Mask13)     + ((c3) & Mask13)    ) >> 4) & Mask13))

#define PIXEL00_0		*(dp) = w5
#define PIXEL00_10		*(dp) = Interp01(w5, w1)
#define PIXEL00_11		*(dp) = Interp01(w5, w4)
#define PIXEL00_12		*(dp) = Interp01(w5, w2)
#define PIXEL00_20		*(dp) = Interp02(w5, w4, w2)
#define PIXEL00_21		*(dp) = Interp02(w5, w1, w2)
#define PIXEL00_22		*(dp) = Interp02(w5, w1, w4)
#define PIXEL00_60		*(dp) = Interp06(w5, w2, w4)
#define PIXEL00_61		*(dp) = Interp06(w5, w4, w2)
#define PIXEL00_70		*(dp) = Interp07(w5, w4, w2)
#define PIXEL00_90		*(dp) = Interp09(w5, w4, w2)
#define PIXEL00_100		*(dp) = Interp10(w5, w4, w2)

#define PIXEL01_0		*(dp + 1) = w5
#define PIXEL01_10		*(dp + 1) = Interp01(w5, w3)
#define PIXEL01_11		*(dp + 1) = Interp01(w5, w2)
#define PIXEL01_12		*(dp + 1) = Interp01(w5, w6)
#define PIXEL01_20		*(dp + 1) = Interp02(w5, w2, w6)
#define PIXEL01_21		*(dp + 1) = Interp02(w5, w3, w6)
#define PIXEL01_22		*(dp + 1) = Interp02(w5, w3, w2)
#define PIXEL01_60		*(dp + 1) = Interp06(w5, w6, w2)
#define PIXEL01_61		*(dp + 1) = Interp06(w5, w2, w6)
#define PIXEL01_70		*(dp + 1) = Interp07(w5, w2, w6)
#define PIXEL01_90		*(dp + 1) = Interp09(w5, w2, w6)
#define PIXEL01_100		*(dp + 1) = Interp10(w5, w2, w6)

#define PIXEL10_0		*(dp + dst1line) = w5
#define PIXEL10_10		*(dp + dst1line) = Interp01(w5, w7)
#define PIXEL10_11		*(dp + dst1line) = Interp01(w5, w8)
#define PIXEL10_12		*(dp + dst1line) = Interp01(w5, w4)
#define PIXEL10_20		*(dp + dst1line) = Interp02(w5, w8, w4)
#define PIXEL10_21		*(dp + dst1line) = Interp02(w5, w7, w4)
#define PIXEL10_22		*(dp + dst1line) = Interp02(w5, w7, w8)
#define PIXEL10_60		*(dp + dst1line) = Interp06(w5, w4, w8)
#define PIXEL10_61		*(dp + dst1line) = Interp06(w5, w8, w4)
#define PIXEL10_70		*(dp + dst1line) = Interp07(w5, w8, w4)
#define PIXEL10_90		*(dp + dst1line) = Interp09(w5, w8, w4)
#define PIXEL10_100		*(dp + dst1line) = Interp10(w5, w8, w4)

#define PIXEL11_0		*(dp + dst1line + 1) = w5
#define PIXEL11_10		*(dp + dst1line + 1) = Interp01(w5, w9)
#define PIXEL11_11		*(dp + dst1line + 1) = Interp01(w5, w6)
#define PIXEL11_12		*(dp + dst1line + 1) = Interp01(w5, w8)
#define PIXEL11_20		*(dp + dst1line + 1) = Interp02(w5, w6, w8)
#define PIXEL11_21		*(dp + dst1line + 1) = Interp02(w5, w9, w8)
#define PIXEL11_22		*(dp + dst1line + 1) = Interp02(w5, w9, w6)
#define PIXEL11_60		*(dp + dst1line + 1) = Interp06(w5, w8, w6)
#define PIXEL11_61		*(dp + dst1line + 1) = Interp06(w5, w6, w8)
#define PIXEL11_70		*(dp + dst1line + 1) = Interp07(w5, w6, w8)
#define PIXEL11_90		*(dp + dst1line + 1) = Interp09(w5, w6, w8)
#define PIXEL11_100		*(dp + dst1line + 1) = Interp10(w5, w6, w8)

#define Absolute(c) \
(!(c & (1 << 31)) ? c : (~c + 1))

static inline bool Diff(int c1, int c2)
{
   int c1y = (c1 & Ymask) - (c2 & Ymask);
   if (Absolute(c1y) > trY) return true;
   int c1u = (c1 & Umask) - (c2 & Umask);
   if (Absolute(c1u) > trU) return true;
   int c1v = (c1 & Vmask) - (c2 & Vmask);
   if (Absolute(c1v) > trV) return true;

   return false;
}

void InitLUTs(void)
{
	int	c, r, g, b, y, u, v;

	for (c = 0 ; c < (1<<NUMBITS) ; c++)
  	{
//#ifdef R5G6B5
		b = (int)((c & 0x1F)) << 3;
		g = (int)((c & 0x7E0)) >> 3;
		r = (int)((c & 0xF800)) >> 8;

//#else
//		b = (int)((c & 0x1F)) << 3;
//		g = (int)((c & 0x3E0)) >> 2;
//		r = (int)((c & 0x7C00)) >> 7;
//#endif

		RGBtoBright[c] = r+r+r + g+g+g + b+b;

		y = (int)( 0.256788f*r + 0.504129f*g + 0.097906f*b + 0.5f) + 16;
		u = (int)(-0.148223f*r - 0.290993f*g + 0.439216f*b + 0.5f) + 128;
		v = (int)( 0.439216f*r - 0.367788f*g - 0.071427f*b + 0.5f) + 128;

		RGBtoYUV[c] = (y << 16) + (u << 8) + v;

	}
}

#define HQ2XCASES \
	case 0: case 1: case 4: case 32: case 128: case 5: case 132: case 160: case 33: case 129: case 36: case 133: case 164: case 161: case 37: case 165: PIXEL00_20; PIXEL01_20; PIXEL10_20; PIXEL11_20; break; \
	case 2: case 34: case 130: case 162: PIXEL00_22; PIXEL01_21; PIXEL10_20; PIXEL11_20; break; \
	case 16: case 17: case 48: case 49: PIXEL00_20; PIXEL01_22; PIXEL10_20; PIXEL11_21; break; \
	case 64: case 65: case 68: case 69: PIXEL00_20; PIXEL01_20; PIXEL10_21; PIXEL11_22; break; \
	case 8: case 12: case 136: case 140: PIXEL00_21; PIXEL01_20; PIXEL10_22; PIXEL11_20; break; \
	case 3: case 35: case 131: case 163: PIXEL00_11; PIXEL01_21; PIXEL10_20; PIXEL11_20; break; \
	case 6: case 38: case 134: case 166: PIXEL00_22; PIXEL01_12; PIXEL10_20; PIXEL11_20; break; \
	case 20: case 21: case 52: case 53: PIXEL00_20; PIXEL01_11; PIXEL10_20; PIXEL11_21; break; \
	case 144: case 145: case 176: case 177: PIXEL00_20; PIXEL01_22; PIXEL10_20; PIXEL11_12; break; \
	case 192: case 193: case 196: case 197: PIXEL00_20; PIXEL01_20; PIXEL10_21; PIXEL11_11; break; \
	case 96: case 97: case 100: case 101: PIXEL00_20; PIXEL01_20; PIXEL10_12; PIXEL11_22; break; \
	case 40: case 44: case 168: case 172: PIXEL00_21; PIXEL01_20; PIXEL10_11; PIXEL11_20; break; \
	case 9: case 13: case 137: case 141: PIXEL00_12; PIXEL01_20; PIXEL10_22; PIXEL11_20; break; \
	case 18: case 50: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_20; PIXEL10_20; PIXEL11_21; break; \
	case 80: case 81: PIXEL00_20; PIXEL01_22; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_20; break; \
	case 72: case 76: PIXEL00_21; PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_20; PIXEL11_22; break; \
	case 10: case 138: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_20; PIXEL01_21; PIXEL10_22; PIXEL11_20; break; \
	case 66: PIXEL00_22; PIXEL01_21; PIXEL10_21; PIXEL11_22; break; \
	case 24: PIXEL00_21; PIXEL01_22; PIXEL10_22; PIXEL11_21; break; \
	case 7: case 39: case 135: PIXEL00_11; PIXEL01_12; PIXEL10_20; PIXEL11_20; break; \
	case 148: case 149: case 180: PIXEL00_20; PIXEL01_11; PIXEL10_20; PIXEL11_12; break; \
	case 224: case 228: case 225: PIXEL00_20; PIXEL01_20; PIXEL10_12; PIXEL11_11; break; \
	case 41: case 169: case 45: PIXEL00_12; PIXEL01_20; PIXEL10_11; PIXEL11_20; break; \
	case 22: case 54: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_20; PIXEL11_21; break; \
	case 208: case 209: PIXEL00_20; PIXEL01_22; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 104: case 108: PIXEL00_21; PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_22; break; \
	case 11: case 139: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_21; PIXEL10_22; PIXEL11_20; break; \
	case 19: case 51: if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL00_11, PIXEL01_10; else PIXEL00_60, PIXEL01_90; PIXEL10_20; PIXEL11_21; break; \
	case 146: case 178: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10, PIXEL11_12; else PIXEL01_90, PIXEL11_61; PIXEL10_20; break; \
	case 84: case 85: PIXEL00_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL01_11, PIXEL11_10; else PIXEL01_60, PIXEL11_90; PIXEL10_21; break; \
	case 112: case 113: PIXEL00_20; PIXEL01_22; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL10_12, PIXEL11_10; else PIXEL10_61, PIXEL11_90; break; \
	case 200: case 204: PIXEL00_21; PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10, PIXEL11_11; else PIXEL10_90, PIXEL11_60; break; \
	case 73: case 77: if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL00_12, PIXEL10_10; else PIXEL00_61, PIXEL10_90; PIXEL01_20; PIXEL11_22; break; \
	case 42: case 170: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10, PIXEL10_11; else PIXEL00_90, PIXEL10_60; PIXEL01_21; PIXEL11_20; break; \
	case 14: case 142: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10, PIXEL01_12; else PIXEL00_90, PIXEL01_61; PIXEL10_22; PIXEL11_20; break; \
	case 67: PIXEL00_11; PIXEL01_21; PIXEL10_21; PIXEL11_22; break; \
	case 70: PIXEL00_22; PIXEL01_12; PIXEL10_21; PIXEL11_22; break; \
	case 28: PIXEL00_21; PIXEL01_11; PIXEL10_22; PIXEL11_21; break; \
	case 152: PIXEL00_21; PIXEL01_22; PIXEL10_22; PIXEL11_12; break; \
	case 194: PIXEL00_22; PIXEL01_21; PIXEL10_21; PIXEL11_11; break; \
	case 98: PIXEL00_22; PIXEL01_21; PIXEL10_12; PIXEL11_22; break; \
	case 56: PIXEL00_21; PIXEL01_22; PIXEL10_11; PIXEL11_21; break; \
	case 25: PIXEL00_12; PIXEL01_22; PIXEL10_22; PIXEL11_21; break; \
	case 26: case 31: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_22; PIXEL11_21; break; \
	case 82: case 214: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 88: case 248: PIXEL00_21; PIXEL01_22; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 74: case 107: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_21; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_22; break; \
	case 27: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_10; PIXEL10_22; PIXEL11_21; break; \
	case 86: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_21; PIXEL11_10; break; \
	case 216: PIXEL00_21; PIXEL01_22; PIXEL10_10; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 106: PIXEL00_10; PIXEL01_21; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_22; break; \
	case 30: PIXEL00_10; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_22; PIXEL11_21; break; \
	case 210: PIXEL00_22; PIXEL01_10; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 120: PIXEL00_21; PIXEL01_22; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_10; break; \
	case 75: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_21; PIXEL10_10; PIXEL11_22; break; \
	case 29: PIXEL00_12; PIXEL01_11; PIXEL10_22; PIXEL11_21; break; \
	case 198: PIXEL00_22; PIXEL01_12; PIXEL10_21; PIXEL11_11; break; \
	case 184: PIXEL00_21; PIXEL01_22; PIXEL10_11; PIXEL11_12; break; \
	case 99: PIXEL00_11; PIXEL01_21; PIXEL10_12; PIXEL11_22; break; \
	case 57: PIXEL00_12; PIXEL01_22; PIXEL10_11; PIXEL11_21; break; \
	case 71: PIXEL00_11; PIXEL01_12; PIXEL10_21; PIXEL11_22; break; \
	case 156: PIXEL00_21; PIXEL01_11; PIXEL10_22; PIXEL11_12; break; \
	case 226: PIXEL00_22; PIXEL01_21; PIXEL10_12; PIXEL11_11; break; \
	case 60: PIXEL00_21; PIXEL01_11; PIXEL10_11; PIXEL11_21; break; \
	case 195: PIXEL00_11; PIXEL01_21; PIXEL10_21; PIXEL11_11; break; \
	case 102: PIXEL00_22; PIXEL01_12; PIXEL10_12; PIXEL11_22; break; \
	case 153: PIXEL00_12; PIXEL01_22; PIXEL10_22; PIXEL11_12; break; \
	case 58: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_11; PIXEL11_21; break; \
	case 83: PIXEL00_11; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 92: PIXEL00_21; PIXEL01_11; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 202: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; PIXEL01_21; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; PIXEL11_11; break; \
	case 78: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; PIXEL01_12; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; PIXEL11_22; break; \
	case 154: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_22; PIXEL11_12; break; \
	case 114: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 89: PIXEL00_12; PIXEL01_22; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 90: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 55: case 23: if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL00_11, PIXEL01_0; else PIXEL00_60, PIXEL01_90; PIXEL10_20; PIXEL11_21; break; \
	case 182: case 150: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0, PIXEL11_12; else PIXEL01_90, PIXEL11_61; PIXEL10_20; break; \
	case 213: case 212: PIXEL00_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL01_11, PIXEL11_0; else PIXEL01_60, PIXEL11_90; PIXEL10_21; break; \
	case 241: case 240: PIXEL00_20; PIXEL01_22; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL10_12, PIXEL11_0; else PIXEL10_61, PIXEL11_90; break; \
	case 236: case 232: PIXEL00_21; PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0, PIXEL11_11; else PIXEL10_90, PIXEL11_60; break; \
	case 109: case 105: if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL00_12, PIXEL10_0; else PIXEL00_61, PIXEL10_90; PIXEL01_20; PIXEL11_22; break; \
	case 171: case 43: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0, PIXEL10_11; else PIXEL00_90, PIXEL10_60; PIXEL01_21; PIXEL11_20; break; \
	case 143: case 15: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0, PIXEL01_12; else PIXEL00_90, PIXEL01_61; PIXEL10_22; PIXEL11_20; break; \
	case 124: PIXEL00_21; PIXEL01_11; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_10; break; \
	case 203: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_21; PIXEL10_10; PIXEL11_11; break; \
	case 62: PIXEL00_10; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_11; PIXEL11_21; break; \
	case 211: PIXEL00_11; PIXEL01_10; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 118: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_12; PIXEL11_10; break; \
	case 217: PIXEL00_12; PIXEL01_22; PIXEL10_10; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 110: PIXEL00_10; PIXEL01_12; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_22; break; \
	case 155: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_10; PIXEL10_22; PIXEL11_12; break; \
	case 188: PIXEL00_21; PIXEL01_11; PIXEL10_11; PIXEL11_12; break; \
	case 185: PIXEL00_12; PIXEL01_22; PIXEL10_11; PIXEL11_12; break; \
	case 61: PIXEL00_12; PIXEL01_11; PIXEL10_11; PIXEL11_21; break; \
	case 157: PIXEL00_12; PIXEL01_11; PIXEL10_22; PIXEL11_12; break; \
	case 103: PIXEL00_11; PIXEL01_12; PIXEL10_12; PIXEL11_22; break; \
	case 227: PIXEL00_11; PIXEL01_21; PIXEL10_12; PIXEL11_11; break; \
	case 230: PIXEL00_22; PIXEL01_12; PIXEL10_12; PIXEL11_11; break; \
	case 199: PIXEL00_11; PIXEL01_12; PIXEL10_21; PIXEL11_11; break; \
	case 220: PIXEL00_21; PIXEL01_11; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 158: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_22; PIXEL11_12; break; \
	case 234: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; PIXEL01_21; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_11; break; \
	case 242: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 59: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_11; PIXEL11_21; break; \
	case 121: PIXEL00_12; PIXEL01_22; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 87: PIXEL00_11; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 79: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_12; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; PIXEL11_22; break; \
	case 122: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 94: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 218: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 91: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 229: PIXEL00_20; PIXEL01_20; PIXEL10_12; PIXEL11_11; break; \
	case 167: PIXEL00_11; PIXEL01_12; PIXEL10_20; PIXEL11_20; break; \
	case 173: PIXEL00_12; PIXEL01_20; PIXEL10_11; PIXEL11_20; break; \
	case 181: PIXEL00_20; PIXEL01_11; PIXEL10_20; PIXEL11_12; break; \
	case 186: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_11; PIXEL11_12; break; \
	case 115: PIXEL00_11; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 93: PIXEL00_12; PIXEL01_11; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 206: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; PIXEL01_12; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; PIXEL11_11; break; \
	case 205: case 201: PIXEL00_12; PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_10; else PIXEL10_70; PIXEL11_11; break; \
	case 174: case 46: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_10; else PIXEL00_70; PIXEL01_12; PIXEL10_11; PIXEL11_20; break; \
	case 179: case 147: PIXEL00_11; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_10; else PIXEL01_70; PIXEL10_20; PIXEL11_12; break; \
	case 117: case 116: PIXEL00_20; PIXEL01_11; PIXEL10_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_10; else PIXEL11_70; break; \
	case 189: PIXEL00_12; PIXEL01_11; PIXEL10_11; PIXEL11_12; break; \
	case 231: PIXEL00_11; PIXEL01_12; PIXEL10_12; PIXEL11_11; break; \
	case 126: PIXEL00_10; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_10; break; \
	case 219: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_10; PIXEL10_10; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 125: if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL00_12, PIXEL10_0; else PIXEL00_61, PIXEL10_90; PIXEL01_11; PIXEL11_10; break; \
	case 221: PIXEL00_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL01_11, PIXEL11_0; else PIXEL01_60, PIXEL11_90; PIXEL10_10; break; \
	case 207: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0, PIXEL01_12; else PIXEL00_90, PIXEL01_61; PIXEL10_10; PIXEL11_11; break; \
	case 238: PIXEL00_10; PIXEL01_12; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0, PIXEL11_11; else PIXEL10_90, PIXEL11_60; break; \
	case 190: PIXEL00_10; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0, PIXEL11_12; else PIXEL01_90, PIXEL11_61; PIXEL10_11; break; \
	case 187: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0, PIXEL10_11; else PIXEL00_90, PIXEL10_60; PIXEL01_10; PIXEL11_12; break; \
	case 243: PIXEL00_11; PIXEL01_10; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL10_12, PIXEL11_0; else PIXEL10_61, PIXEL11_90; break; \
	case 119: if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL00_11, PIXEL01_0; else PIXEL00_60, PIXEL01_90; PIXEL10_12; PIXEL11_10; break; \
	case 237: case 233: PIXEL00_12; PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_100; PIXEL11_11; break; \
	case 175: case 47: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_100; PIXEL01_12; PIXEL10_11; PIXEL11_20; break; \
	case 183: case 151: PIXEL00_11; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_100; PIXEL10_20; PIXEL11_12; break; \
	case 245: case 244: PIXEL00_20; PIXEL01_11; PIXEL10_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_100; break; \
	case 250: PIXEL00_10; PIXEL01_10; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 123: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_10; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_10; break; \
	case 95: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_10; PIXEL11_10; break; \
	case 222: PIXEL00_10; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_10; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 252: PIXEL00_21; PIXEL01_11; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_100; break; \
	case 249: PIXEL00_12; PIXEL01_22; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_100; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 235: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_21; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_100; PIXEL11_11; break; \
	case 111: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_100; PIXEL01_12; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_22; break; \
	case 63: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_100; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_11; PIXEL11_21; break; \
	case 159: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_100; PIXEL10_22; PIXEL11_12; break; \
	case 215: PIXEL00_11; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_100; PIXEL10_21; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 246: PIXEL00_22; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; PIXEL10_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_100; break; \
	case 254: PIXEL00_10; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_100; break; \
	case 253: PIXEL00_12; PIXEL01_11; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_100; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_100; break; \
	case 251: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; PIXEL01_10; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_100; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 239: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_100; PIXEL01_12; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_100; PIXEL11_11; break; \
	case 127: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_100; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_20; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_20; PIXEL11_10; break; \
	case 191: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_100; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_100; PIXEL10_11; PIXEL11_12; break; \
	case 223: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_20; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_100; PIXEL10_10; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_20; break; \
	case 247: PIXEL00_11; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_100; PIXEL10_12; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_100; break; \
	case 255: if (Diff(RGBtoYUVtable[w4], RGBtoYUVtable[w2])) PIXEL00_0; else PIXEL00_100; if (Diff(RGBtoYUVtable[w2], RGBtoYUVtable[w6])) PIXEL01_0; else PIXEL01_100; if (Diff(RGBtoYUVtable[w8], RGBtoYUVtable[w4])) PIXEL10_0; else PIXEL10_100; if (Diff(RGBtoYUVtable[w6], RGBtoYUVtable[w8])) PIXEL11_0; else PIXEL11_100; break;

template<int GuiScale>
void RenderHQ2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
    // If Snes9x is rendering anything in HiRes, then just copy, don't interpolate
    if (height > SNES_HEIGHT_EXTENDED || width == 512)
    {
		//RenderSimple2X (Src, Dst, rect);
        return;
    }
	
	int	w1, w2, w3, w4, w5, w6, w7, w8, w9;

	uint32	src1line = srcPitch >> 1;
	uint32	dst1line = dstPitch >> 1;
	uint16	*sp = (uint16 *) srcPtr;
	uint16	*dp = (uint16 *) dstPtr;

	const int* RGBtoYUVtable = RGBtoYUV;

	uint32  pattern;
	int		l, y;

	while (height--)
	{
		sp--;

		w1 = *(sp - src1line);
		w4 = *(sp);
		w7 = *(sp + src1line);

		sp++;

		w2 = *(sp - src1line);
		w5 = *(sp);
		w8 = *(sp + src1line);

		for (l = width; l; l--)
		{
			sp++;

			w3 = *(sp - src1line);
			w6 = *(sp);
			w9 = *(sp + src1line);

			pattern = 0;

			switch(GuiScale)
			{
			case FILTER_HQ2XBOLD: {
				const uint16 avg = (RGBtoBright[w1] + RGBtoBright[w2] + RGBtoBright[w3] + RGBtoBright[w4] + RGBtoBright[w5] + RGBtoBright[w6] + RGBtoBright[w7] + RGBtoBright[w8] + RGBtoBright[w9]) / 9;
				const bool diff5 = RGBtoBright[w5] > avg;
				if ((w1 != w5) && ((RGBtoBright[w1] > avg) != diff5)) pattern |= (1 << 0);
				if ((w2 != w5) && ((RGBtoBright[w2] > avg) != diff5)) pattern |= (1 << 1);
				if ((w3 != w5) && ((RGBtoBright[w3] > avg) != diff5)) pattern |= (1 << 2);
				if ((w4 != w5) && ((RGBtoBright[w4] > avg) != diff5)) pattern |= (1 << 3);
				if ((w6 != w5) && ((RGBtoBright[w6] > avg) != diff5)) pattern |= (1 << 4);
				if ((w7 != w5) && ((RGBtoBright[w7] > avg) != diff5)) pattern |= (1 << 5);
				if ((w8 != w5) && ((RGBtoBright[w8] > avg) != diff5)) pattern |= (1 << 6);
				if ((w9 != w5) && ((RGBtoBright[w9] > avg) != diff5)) pattern |= (1 << 7);
              }  break;

			case FILTER_HQ2XS: {
				bool nosame = true;
				if(w1 == w5 || w3 == w5 || w7 == w5 || w9 == w5)
					nosame = false;

				if(nosame)
				{
					const uint16 avg = (RGBtoBright[w1] + RGBtoBright[w2] + RGBtoBright[w3] + RGBtoBright[w4] + RGBtoBright[w5] + RGBtoBright[w6] + RGBtoBright[w7] + RGBtoBright[w8] + RGBtoBright[w9]) / 9;
					const bool diff5 = RGBtoBright[w5] > avg;
					if((RGBtoBright[w1] > avg) != diff5) pattern |= (1 << 0);
					if((RGBtoBright[w2] > avg) != diff5) pattern |= (1 << 1);
					if((RGBtoBright[w3] > avg) != diff5) pattern |= (1 << 2);
					if((RGBtoBright[w4] > avg) != diff5) pattern |= (1 << 3);
					if((RGBtoBright[w6] > avg) != diff5) pattern |= (1 << 4);
					if((RGBtoBright[w7] > avg) != diff5) pattern |= (1 << 5);
					if((RGBtoBright[w8] > avg) != diff5) pattern |= (1 << 6);
					if((RGBtoBright[w9] > avg) != diff5) pattern |= (1 << 7);
				}
				else
				{
					y = RGBtoYUV[w5];
					if ((w1 != w5) && (Diff(y, RGBtoYUV[w1]))) pattern |= (1 << 0);
					if ((w2 != w5) && (Diff(y, RGBtoYUV[w2]))) pattern |= (1 << 1);
					if ((w3 != w5) && (Diff(y, RGBtoYUV[w3]))) pattern |= (1 << 2);
					if ((w4 != w5) && (Diff(y, RGBtoYUV[w4]))) pattern |= (1 << 3);
					if ((w6 != w5) && (Diff(y, RGBtoYUV[w6]))) pattern |= (1 << 4);
					if ((w7 != w5) && (Diff(y, RGBtoYUV[w7]))) pattern |= (1 << 5);
					if ((w8 != w5) && (Diff(y, RGBtoYUV[w8]))) pattern |= (1 << 6);
					if ((w9 != w5) && (Diff(y, RGBtoYUV[w9]))) pattern |= (1 << 7);
				}
              }  break;
	        default:
            case FILTER_HQ2X:
				y = RGBtoYUVtable[w5];
				if ((w1 != w5) && (Diff(y, RGBtoYUVtable[w1]))) pattern |= (1 << 0);
				if ((w2 != w5) && (Diff(y, RGBtoYUVtable[w2]))) pattern |= (1 << 1);
				if ((w3 != w5) && (Diff(y, RGBtoYUVtable[w3]))) pattern |= (1 << 2);
				if ((w4 != w5) && (Diff(y, RGBtoYUVtable[w4]))) pattern |= (1 << 3);
				if ((w6 != w5) && (Diff(y, RGBtoYUVtable[w6]))) pattern |= (1 << 4);
				if ((w7 != w5) && (Diff(y, RGBtoYUVtable[w7]))) pattern |= (1 << 5);
				if ((w8 != w5) && (Diff(y, RGBtoYUVtable[w8]))) pattern |= (1 << 6);
				if ((w9 != w5) && (Diff(y, RGBtoYUVtable[w9]))) pattern |= (1 << 7);
                break;
			}

			switch (pattern)
			{
				HQ2XCASES
			}

			w1 = w2; w4 = w5; w7 = w8;
			w2 = w3; w5 = w6; w8 = w9;

			dp += 2;
		}

		dp += ((dst1line - width) << 1);
		sp +=  (src1line - width);
	}
}