/****************************************************************************
 * Snes9x 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 "snes9x/memmap.h"

#include "menu.h"

#define NUMBITS (16)

static int RGBtoYUV[1<<NUMBITS];
static uint16 RGBtoBright[1<<NUMBITS];

TFilterMethod FilterMethod;

template<int GuiScale> void RenderHQ2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
template<int GuiScale> void RenderScale2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
template<int GuiScale> void RenderTVMode (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
template<int GuiScale> void Render2xBR (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
template<int GuiScale> void Render2xBRlv1 (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);
template<int GuiScale> void RenderDDT (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height);

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";
        case FILTER_SCALE2X: return "Scale2x";
        case FILTER_TVMODE: return "TV Mode";
        case FILTER_2XBR: return "2xBR";
        case FILTER_2XBRLV1: return "2xBR-lv1";
        case FILTER_DDT: return "DDT";
    }
}

// Return pointer to appropriate function
static TFilterMethod FilterToMethod (RenderFilter filterID)
{
    switch(filterID)
    {
        case FILTER_HQ2X:       return RenderHQ2X<FILTER_HQ2X>;
        case FILTER_HQ2XS:      return RenderHQ2X<FILTER_HQ2XS>;
        case FILTER_HQ2XBOLD:   return RenderHQ2X<FILTER_HQ2XBOLD>;
        case FILTER_SCALE2X:    return RenderScale2X<FILTER_SCALE2X>;
        case FILTER_TVMODE:     return RenderTVMode<FILTER_TVMODE>;
        case FILTER_2XBR:     return Render2xBR<FILTER_2XBR>;
        case FILTER_2XBRLV1:     return Render2xBRlv1<FILTER_2XBRLV1>;
        case FILTER_DDT:     return RenderDDT<FILTER_DDT>;
        default: return 0;
    }
}

int GetFilterScale(RenderFilter filterID)
{
    switch(filterID)
    {
        case FILTER_NONE:
        return 1;
        default:
        case FILTER_HQ2X:
        case FILTER_HQ2XS:
        case FILTER_HQ2XBOLD:
        case FILTER_SCALE2X:
        case FILTER_TVMODE:
        case FILTER_2XBR:
        case FILTER_2XBRLV1:
        case FILTER_DDT:
        return 2;
    }
}

void SelectFilterMethod ()
{
    FilterMethod = FilterToMethod((RenderFilter)GCSettings.FilterMethod);
}

//
// 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++)
    {
        b = (int)((c & 0x1F)) << 3;
        g = (int)((c & 0x7E0)) >> 3;
        r = (int)((c & 0xF800)) >> 8;
        
        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)
    {
        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);
    }
}

template<int GuiScale>
void RenderScale2X (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
    unsigned int nextlineSrc = srcPitch / sizeof(uint16);
    uint16 *p = (uint16 *)srcPtr;
    
    unsigned int nextlineDst = dstPitch / sizeof(uint16);
    uint16 *q = (uint16 *)dstPtr;
    
    while (height--) {
        for (int i = 0; i < width; ++i) {
            uint16 B = *(p + i - nextlineSrc);
            uint16 D = *(p + i - 1);
            uint16 E = *(p + i);
            uint16 F = *(p + i + 1);
            uint16 H = *(p + i + nextlineSrc);
            
            *(q + (i << 1)) = D == B && B != F && D != H ? D : E;
            *(q + (i << 1) + 1) = B == F && B != D && F != H ? F : E;
            *(q + (i << 1) + nextlineDst) = D == H && D != B && H != F ? D : E;
            *(q + (i << 1) + nextlineDst + 1) = H == F && D != H && B != F ? F : E;
        }
        p += nextlineSrc;
        q += nextlineDst << 1;
    }
}

template<int GuiScale>
void RenderTVMode (uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr, uint32 dstPitch, int width, int height)
{
    unsigned int nextlineSrc = srcPitch / sizeof(uint16);
    uint16 *p = (uint16 *)srcPtr;
    
    unsigned int nextlineDst = dstPitch / sizeof(uint16);
    uint16 *q = (uint16 *)dstPtr;
    
    while(height--) {
        for (int i = 0, j = 0; i < width; ++i, j += 2) {
            uint16 p1 = *(p + i);
            uint32 pi;
            
            pi = (((p1 & Mask_2) * 6) >> 3) & Mask_2;
            pi |= (((p1 & Mask13) * 6) >> 3) & Mask13;
            
            *(q + j) = p1;
            *(q + j + 1) = p1;
            *(q + j + nextlineDst) = (uint16)pi;
            *(q + j + nextlineDst + 1) = (uint16)pi;
        }
        p += nextlineSrc;
        q += nextlineDst << 1;
    }
}


//---------------------------------------------------------------------------------------------------------------------------

static int  RGBlum[65536];
static const uint32 tbl_5_to_8[32]={0, 8, 16, 25, 33, 41, 49,  58, 66, 74, 82, 90, 99, 107, 115, 123, 132, 140, 148, 156, 165, 173, 181, 189,  197, 206, 214, 222, 230, 239, 247, 255};
static const uint32 tbl_6_to_8[64]={0, 4, 8, 12, 16, 20, 24,  28, 32, 36, 40, 45, 49, 53, 57, 61, 65, 69, 73, 77, 81, 85, 89, 93, 97, 101,  105, 109, 113, 117, 121, 125, 130, 134, 138, 142, 146, 150, 154, 158, 162, 166,  170, 174, 178, 182, 186, 190, 194, 198, 202, 206, 210, 215, 219, 223, 227, 231,  235, 239, 243, 247, 251, 255};

//---------------------------------------------------------------------------------------------------------------------------

#define RB_MASK565 0xF81F
#define R_MASK565  0xF800
#define G_MASK565  0x07E0
#define B_MASK565  0x001F
#define LB_MASK565 0xF7DE

static const uint16 rb_mask = RB_MASK565;
static const uint16  r_mask =  R_MASK565;
static const uint16  g_mask =  G_MASK565;
static const uint16  b_mask =  B_MASK565;
static const uint16 lb_mask = LB_MASK565;

#define ALPHA_BLEND_128_W(dst, src) dst = ((src & lb_mask) >> 1) + ((dst & lb_mask) >> 1)

#define ALPHA_BLEND_16_W(dst, src) \
    dst = ( (rb_mask & ((dst & rb_mask) + ((((src & rb_mask) - (dst & rb_mask))) >>4))) | \
            ( g_mask & ((dst &  g_mask) + ((((src &  g_mask) - (dst &  g_mask))) >>4))) )

#define ALPHA_BLEND_32_W(dst, src) \
    dst = ( \
          (rb_mask & ((dst & rb_mask) + ((((src & rb_mask) - (dst & rb_mask))) >>3))) | \
          ( g_mask & ((dst &  g_mask) + ((((src &  g_mask) - (dst &  g_mask))) >>3))) )

#define ALPHA_BLEND_64_W(dst, src) \
    dst = ( \
          (rb_mask & ((dst & rb_mask) + ((((src & rb_mask) - (dst & rb_mask))) >>2))) | \
          ( g_mask & ((dst &  g_mask) + ((((src &  g_mask) - (dst &  g_mask))) >>2))) )

#define ALPHA_BLEND_96_W(dst, src) \
    dst = ( \
          (rb_mask & ((dst & rb_mask) + ((((src & rb_mask) - (dst & rb_mask)) * 96) >>8))) | \
          ( g_mask & ((dst &  g_mask) + ((((src &  g_mask) - (dst &  g_mask)) * 96) >>8))) )

#define ALPHA_BLEND_192_W(dst, src) \
    dst = ( \
          (rb_mask & ((src & rb_mask) + ((((dst & rb_mask) - (src & rb_mask))) >>2))) | \
          ( g_mask & ((src &  g_mask) + ((((dst &  g_mask) - (src &  g_mask))) >>2))) )

#define ALPHA_BLEND_224_W(dst, src) \
    dst = ( \
          (rb_mask & ((src & rb_mask) + ((((dst & rb_mask) - (src & rb_mask))) >>3))) | \
          ( g_mask & ((src &  g_mask) + ((((dst &  g_mask) - (src &  g_mask))) >>3))) )


#define LEFT_UP_2_2X(N3, N2, N1, PIXEL)\
    ALPHA_BLEND_224_W(Ep[N3], PIXEL); \
    ALPHA_BLEND_64_W( Ep[N2], PIXEL); \
    Ep[N1] = Ep[N2]; \


#define LEFT_2_2X(N3, N2, PIXEL)\
    ALPHA_BLEND_192_W(Ep[N3], PIXEL); \
    ALPHA_BLEND_64_W( Ep[N2], PIXEL); \


#define UP_2_2X(N3, N1, PIXEL)\
    ALPHA_BLEND_192_W(Ep[N3], PIXEL); \
    ALPHA_BLEND_64_W( Ep[N1], PIXEL); \


#define DIA_2X(N3, PIXEL)\
    ALPHA_BLEND_128_W(Ep[N3], PIXEL); \


#define ALPHA_BLEND_X_W(dst, src, VAL) \
    dst = ( \
          (rb_mask & ((dst & rb_mask) + ((((src & rb_mask) - (dst & rb_mask)) * VAL) >>5))) | \
          ( g_mask & ((dst &  g_mask) + ((((src &  g_mask) - (dst &  g_mask)) * VAL) >>5))))

#define BIL2X_ODD(PF, PH, PI, N1, N2, N3) \
    ALPHA_BLEND_128_W(Ep[N1], PF); \
    ALPHA_BLEND_128_W(Ep[N2], PH); \
    Ep[N3] = Ep[N1]; \
    aux = PH; \
    ALPHA_BLEND_128_W(aux, PI); \
    ALPHA_BLEND_128_W(Ep[N3], aux); \

#define DDT2XBC_ODD(PF, PH, PI, N1, N2, N3) \
    ALPHA_BLEND_128_W(Ep[N1], PF); \
    ALPHA_BLEND_128_W(Ep[N2], PH); \
    ALPHA_BLEND_128_W(Ep[N3], PI); \

#define DDT2XD_ODD(PF, PH, N1, N2, N3) \
    ALPHA_BLEND_128_W(Ep[N1], PF); \
    ALPHA_BLEND_128_W(Ep[N2], PH); \
    Ep[N3] = PF; \
    ALPHA_BLEND_128_W(Ep[N3], PH); \

#define df(A, B)\
    abs(RGBlum[A] - RGBlum[B])\

#define eq(A, B)\
    (df(A, B) < 155)\


#define XBR(PE, PI, PH, PF, PG, PC, PD, PB, PA, N0, N1, N2, N3) \
    if ( PE!=PH && PE!=PF )\
    {\
        wd1 = df(PH,PF); \
        wd2 = df(PE,PI); \
        if ((wd1<<1)<wd2)\
        {\
            if ( !eq(PF,PB) && !eq(PF,PC) || !eq(PH,PD) && !eq(PH,PG) || eq(PE,PG) || eq(PE,PC) )\
                {\
                dFG=df(PF,PG); dHC=df(PH,PC); \
                irlv2u = (PE!=PC && PB!=PC); irlv2l = (PE!=PG && PD!=PG); px = (df(PE,PF) <= df(PE,PH)) ? PF : PH; \
                if ( irlv2l && irlv2u && ((dFG<<1)<=dHC) && (dFG>=(dHC<<1)) ) \
                {\
                    LEFT_UP_2_2X(N3, N2, N1, px)\
                }\
                else if ( irlv2l && ((dFG<<1)<=dHC) ) \
                {\
                    LEFT_2_2X(N3, N2, px);\
                }\
                else if ( irlv2u && (dFG>=(dHC<<1)) ) \
                {\
                    UP_2_2X(N3, N1, px);\
                }\
                else \
                {\
                    DIA_2X(N3, px);\
                }\
            }\
        }\
        else if (wd1<=wd2)\
        {\
            px = (df(PE,PF) <= df(PE,PH)) ? PF : PH;\
            ALPHA_BLEND_64_W( Ep[N3], px); \
        }\
    }\


#define XBRLV1(PE, PI, PH, PF, PG, PC, PD, PB, PA, N0, N1, N2, N3) \
    irlv1   = (PE!=PH && PE!=PF); \
    if ( irlv1 )\
    {\
        wd1 = df(PH,PF); \
        wd2 = df(PE,PI); \
        if (((wd1<<1)<wd2) && eq(PB,PD) && PB!=PF && PD!=PH)\
        {\
                px = (df(PE,PF) <= df(PE,PH)) ? PF : PH; \
                DIA_2X(N3, px);\
        }\
	else if (wd1<=wd2)\
        {\
            px = (df(PE,PF) <= df(PE,PH)) ? PF : PH;\
            ALPHA_BLEND_64_W( Ep[N3], px); \
        }\
    }\


#define DDT(PE, PI, PH, PF, N0, N1, N2, N3) \
        wd1 = (df(PH,PF)); \
        wd2 = (df(PE,PI)); \
	if (wd1>wd2)\
	{\
            DDT2XBC_ODD(PF, PH, PI, N1, N2, N3);\
	}\
	else if (wd1<wd2)\
	{\
            DDT2XD_ODD(PF, PH, N1, N2, N3);\
	}\
	else\
	{\
            BIL2X_ODD(PF, PH, PI, N1, N2, N3);\
        }

//---------------------------------------------------------------------------------------------------------------------------

void SetupFormat(void)
{
    uint32 c, r, g, b, y, u, v;
       
    for (c = 0; c < 65536; c++)
    {
        r = tbl_5_to_8[(c &   R_MASK565) >> 11];
        g = tbl_6_to_8[(c & G_MASK565) >>  5];
        b = tbl_5_to_8[(c &  B_MASK565)      ];
        y = ((r<<4) + (g<<5) + (b<<2));
        u = (   -r  - (g<<1) + (b<<2));
        v = ((r<<1) - (g<<1) - (b>>1));
        RGBlum[c] = (int) (y + u + v);
    }
}


template<int GuiScale>
void Render2xBR (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)
    {
        return;
    }
    
    uint32 wd1, wd2;
    uint32 irlv1, irlv2u, irlv2l;
    uint32 dFG, dHC;
    uint32 E0, E1, E2, E3;

    uint16 A, B, C, D, E, F, G, H, I, px;
   
    uint32 nextlineSrc = srcPitch / sizeof(uint16);
    uint16 *p  = (uint16 *)srcPtr;
    
    uint32 nextlineDst = dstPitch / sizeof(uint16);
    uint16 *Ep = (uint16 *)dstPtr;
    
    while (height--) {
        
        A  = *(p - 1 - nextlineSrc);
        B  = *(p     - nextlineSrc);
        
        D  = *(p - 1);
        E  = *(p);
        
        G  = *(p - 1 + nextlineSrc);
        H  = *(p     + nextlineSrc);
        

        for (int i = 0; i < width; i++) {
            C  = *(p + i + 1 - nextlineSrc);
            F  = *(p + i + 1);
            I  = *(p + i + 1 + nextlineSrc);
	    
	    E0 = (i << 1);
	    E1 = (i << 1) + 1;
	    E2 = (i << 1) + nextlineDst;
	    E3 = (i << 1) + nextlineDst + 1;

            Ep[E0] = Ep[E1] = Ep[E2] = Ep[E3] = E; // 0, 1, 2, 3
            
	    if (  (E!=F || E!=D) && (E!=H || E!=B) )
            {	    
                XBR( E, I, H, F, G, C, D, B, A, E0, E1, E2, E3);
                XBR( E, C, F, B, I, A, H, D, G, E2, E0, E3, E1);
                XBR( E, A, B, D, C, G, F, H, I, E3, E2, E1, E0);
                XBR( E, G, D, H, A, I, B, F, C, E1, E3, E0, E2);
	    }
            
            A= B; B=C;
            D= E; E=F;
            G= H; H=I;
        }
        
        p += nextlineSrc;
        Ep += nextlineDst << 1;
    }
}

template<int GuiScale>
void Render2xBRlv1 (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)
    {
        return;
    }
    
    uint32 wd1, wd2;
    uint32 irlv1;
    uint32 E0, E1, E2, E3;

    uint16 A, B, C, D, E, F, G, H, I, px;
   
    uint32 nextlineSrc = srcPitch / sizeof(uint16);
    uint16 *p  = (uint16 *)srcPtr;
    
    uint32 nextlineDst = dstPitch / sizeof(uint16);
    uint16 *Ep = (uint16 *)dstPtr;
    
    while (height--) {
        
        A  = *(p - 1 - nextlineSrc);
        B  = *(p     - nextlineSrc);
        
        D  = *(p - 1);
        E  = *(p);
        
        G  = *(p - 1 + nextlineSrc);
        H  = *(p     + nextlineSrc);
        

        for (int i = 0; i < width; i++) {
            C  = *(p + i + 1 - nextlineSrc);
            F  = *(p + i + 1);
            I  = *(p + i + 1 + nextlineSrc);
	    
	    E0 = (i << 1);
	    E1 = (i << 1) + 1;
	    E2 = (i << 1) + nextlineDst;
	    E3 = (i << 1) + nextlineDst + 1;

            Ep[E0] = Ep[E1] = Ep[E2] = Ep[E3] = E; // 0, 1, 2, 3

	    if (  (E!=F || E!=D) && (E!=H || E!=B) )
	    {            
                XBRLV1( E, I, H, F, G, C, D, B, A, E0, E1, E2, E3);
                XBRLV1( E, C, F, B, I, A, H, D, G, E2, E0, E3, E1);
                XBRLV1( E, A, B, D, C, G, F, H, I, E3, E2, E1, E0);
                XBRLV1( E, G, D, H, A, I, B, F, C, E1, E3, E0, E2);
	    }
            
            A= B; B=C;
            D= E; E=F;
            G= H; H=I;
        }
        
        p += nextlineSrc;
        Ep += nextlineDst << 1;
    }
}


template<int GuiScale>
void RenderDDT (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)
    {
        return;
    }
    
    uint32 wd1, wd2;
    uint32 E0, E1, E2, E3;

    uint16 E, F, H, I, aux;
   
    uint32 nextlineSrc = srcPitch / sizeof(uint16);
    uint16 *p  = (uint16 *)srcPtr;
    
    uint32 nextlineDst = dstPitch / sizeof(uint16);
    uint16 *Ep = (uint16 *)dstPtr;
    
    while (height--) {
        
        E  = *(p);
        H  = *(p     + nextlineSrc);

        for (int i = 0; i < width; i++) {
            F  = *(p + i + 1);
            I  = *(p + i + 1 + nextlineSrc);
	    
	    E0 = (i << 1);
	    E1 = (i << 1) + 1;
	    E2 = (i << 1) + nextlineDst;
	    E3 = (i << 1) + nextlineDst + 1;

            Ep[E0] = Ep[E1] = Ep[E2] = Ep[E3] = E; // 0, 1, 2, 3

            if (E!=F || E!=H || F!=I || H!=I)
            {
                DDT( E, I, H, F, E0, E1, E2, E3);
            }

            E=F;
            H=I;
        }
        
        p += nextlineSrc;
        Ep += nextlineDst << 1;
    }
}