/*
 *	Copyright (C) 2007-2009 Gabest
 *	http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA USA.
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

#pragma once

#define PLUGIN_VERSION 0

#define VM_SIZE 4194304u
#define HALF_VM_SIZE (VM_SIZE / 2u)
#define PAGE_SIZE 8192u
#define BLOCK_SIZE 256u
#define COLUMN_SIZE 64u

#define MAX_PAGES (VM_SIZE / PAGE_SIZE)
#define MAX_BLOCKS (VM_SIZE / BLOCK_SIZE)
#define MAX_COLUMNS (VM_SIZE / COLUMN_SIZE)

//if defined, will send much info in reply to the API title info queri from PCSX2
//default should be undefined
//#define GSTITLEINFO_API_FORCE_VERBOSE

#include "GSVector.h"

#pragma pack(push, 1)

enum GS_PRIM
{
	GS_POINTLIST		= 0,
	GS_LINELIST			= 1,
	GS_LINESTRIP		= 2,
	GS_TRIANGLELIST		= 3,
	GS_TRIANGLESTRIP	= 4,
	GS_TRIANGLEFAN		= 5,
	GS_SPRITE			= 6,
	GS_INVALID			= 7,
};

enum GS_PRIM_CLASS
{
	GS_POINT_CLASS		= 0,
	GS_LINE_CLASS		= 1,
	GS_TRIANGLE_CLASS	= 2,
	GS_SPRITE_CLASS		= 3,
	GS_INVALID_CLASS	= 7,
};

enum GIF_REG
{
	GIF_REG_PRIM	= 0x00,
	GIF_REG_RGBA	= 0x01,
	GIF_REG_STQ		= 0x02,
	GIF_REG_UV		= 0x03,
	GIF_REG_XYZF2	= 0x04,
	GIF_REG_XYZ2	= 0x05,
	GIF_REG_TEX0_1	= 0x06,
	GIF_REG_TEX0_2	= 0x07,
	GIF_REG_CLAMP_1	= 0x08,
	GIF_REG_CLAMP_2	= 0x09,
	GIF_REG_FOG		= 0x0a,
	GIF_REG_INVALID	= 0x0b,
	GIF_REG_XYZF3	= 0x0c,
	GIF_REG_XYZ3	= 0x0d,
	GIF_REG_A_D		= 0x0e,
	GIF_REG_NOP		= 0x0f,
};

enum GIF_REG_COMPLEX
{
	GIF_REG_STQRGBAXYZF2	= 0x00,
	GIF_REG_STQRGBAXYZ2		= 0x01,
};

enum GIF_A_D_REG
{
	GIF_A_D_REG_PRIM		= 0x00,
	GIF_A_D_REG_RGBAQ		= 0x01,
	GIF_A_D_REG_ST			= 0x02,
	GIF_A_D_REG_UV			= 0x03,
	GIF_A_D_REG_XYZF2		= 0x04,
	GIF_A_D_REG_XYZ2		= 0x05,
	GIF_A_D_REG_TEX0_1		= 0x06,
	GIF_A_D_REG_TEX0_2		= 0x07,
	GIF_A_D_REG_CLAMP_1		= 0x08,
	GIF_A_D_REG_CLAMP_2		= 0x09,
	GIF_A_D_REG_FOG			= 0x0a,
	GIF_A_D_REG_XYZF3		= 0x0c,
	GIF_A_D_REG_XYZ3		= 0x0d,
	GIF_A_D_REG_NOP			= 0x0f,
	GIF_A_D_REG_TEX1_1		= 0x14,
	GIF_A_D_REG_TEX1_2		= 0x15,
	GIF_A_D_REG_TEX2_1		= 0x16,
	GIF_A_D_REG_TEX2_2		= 0x17,
	GIF_A_D_REG_XYOFFSET_1	= 0x18,
	GIF_A_D_REG_XYOFFSET_2	= 0x19,
	GIF_A_D_REG_PRMODECONT	= 0x1a,
	GIF_A_D_REG_PRMODE		= 0x1b,
	GIF_A_D_REG_TEXCLUT		= 0x1c,
	GIF_A_D_REG_SCANMSK		= 0x22,
	GIF_A_D_REG_MIPTBP1_1	= 0x34,
	GIF_A_D_REG_MIPTBP1_2	= 0x35,
	GIF_A_D_REG_MIPTBP2_1	= 0x36,
	GIF_A_D_REG_MIPTBP2_2	= 0x37,
	GIF_A_D_REG_TEXA		= 0x3b,
	GIF_A_D_REG_FOGCOL		= 0x3d,
	GIF_A_D_REG_TEXFLUSH	= 0x3f,
	GIF_A_D_REG_SCISSOR_1	= 0x40,
	GIF_A_D_REG_SCISSOR_2	= 0x41,
	GIF_A_D_REG_ALPHA_1		= 0x42,
	GIF_A_D_REG_ALPHA_2		= 0x43,
	GIF_A_D_REG_DIMX		= 0x44,
	GIF_A_D_REG_DTHE		= 0x45,
	GIF_A_D_REG_COLCLAMP	= 0x46,
	GIF_A_D_REG_TEST_1		= 0x47,
	GIF_A_D_REG_TEST_2		= 0x48,
	GIF_A_D_REG_PABE		= 0x49,
	GIF_A_D_REG_FBA_1		= 0x4a,
	GIF_A_D_REG_FBA_2		= 0x4b,
	GIF_A_D_REG_FRAME_1		= 0x4c,
	GIF_A_D_REG_FRAME_2		= 0x4d,
	GIF_A_D_REG_ZBUF_1		= 0x4e,
	GIF_A_D_REG_ZBUF_2		= 0x4f,
	GIF_A_D_REG_BITBLTBUF	= 0x50,
	GIF_A_D_REG_TRXPOS		= 0x51,
	GIF_A_D_REG_TRXREG		= 0x52,
	GIF_A_D_REG_TRXDIR		= 0x53,
	GIF_A_D_REG_HWREG		= 0x54,
	GIF_A_D_REG_SIGNAL		= 0x60,
	GIF_A_D_REG_FINISH		= 0x61,
	GIF_A_D_REG_LABEL		= 0x62,
};

enum GIF_FLG
{
	GIF_FLG_PACKED	= 0,
	GIF_FLG_REGLIST	= 1,
	GIF_FLG_IMAGE	= 2,
	GIF_FLG_IMAGE2	= 3
};

enum GS_PSM
{
	PSM_PSMCT32		= 0,  // 0000-0000
	PSM_PSMCT24		= 1,  // 0000-0001
	PSM_PSMCT16		= 2,  // 0000-0010
	PSM_PSMCT16S	= 10, // 0000-1010
	PSM_PSGPU24     = 18, // 0001-0010
	PSM_PSMT8		= 19, // 0001-0011
	PSM_PSMT4		= 20, // 0001-0100
	PSM_PSMT8H		= 27, // 0001-1011
	PSM_PSMT4HL		= 36, // 0010-0100
	PSM_PSMT4HH		= 44, // 0010-1100
	PSM_PSMZ32		= 48, // 0011-0000
	PSM_PSMZ24		= 49, // 0011-0001
	PSM_PSMZ16		= 50, // 0011-0010
	PSM_PSMZ16S		= 58, // 0011-1010
};

enum GS_TFX
{
	TFX_MODULATE	= 0,
	TFX_DECAL		= 1,
	TFX_HIGHLIGHT	= 2,
	TFX_HIGHLIGHT2	= 3,
	TFX_NONE		= 4,
};

enum GS_CLAMP
{
	CLAMP_REPEAT		= 0,
	CLAMP_CLAMP			= 1,
	CLAMP_REGION_CLAMP	= 2,
	CLAMP_REGION_REPEAT	= 3,
};

enum GS_ZTST
{
	ZTST_NEVER		= 0,
	ZTST_ALWAYS		= 1,
	ZTST_GEQUAL		= 2,
	ZTST_GREATER	= 3,
};

enum GS_ATST
{
	ATST_NEVER		= 0,
	ATST_ALWAYS		= 1,
	ATST_LESS		= 2,
	ATST_LEQUAL		= 3,
	ATST_EQUAL		= 4,
	ATST_GEQUAL		= 5,
	ATST_GREATER	= 6,
	ATST_NOTEQUAL	= 7,
};

enum GS_AFAIL
{
	AFAIL_KEEP		= 0,
	AFAIL_FB_ONLY	= 1,
	AFAIL_ZB_ONLY	= 2,
	AFAIL_RGB_ONLY	= 3,
};

enum class GS_MIN_FILTER : uint8_t
{
	Nearest                = 0,
	Linear                 = 1,
	Nearest_Mipmap_Nearest = 2,
	Nearest_Mipmap_Linear  = 3,
	Linear_Mipmap_Nearest  = 4,
	Linear_Mipmap_Linear   = 5,
};

enum class GSRendererType : int8_t
{
	Undefined = -1,
	DX1011_HW = 3,
	DX1011_SW,
	Null = 11,
	OGL_HW,
	OGL_SW,

#ifdef _WIN32
	Default = Undefined
#else
	// Use ogl renderer as default otherwise it crash at startup
	// GSRenderOGL only GSDeviceOGL (not GSDeviceNULL)
	Default = OGL_HW
#endif

};


#define REG32(name) \
union name			\
{					\
	uint32 u32;	\
	struct {		\

#define REG64(name) \
union name			\
{					\
	uint64 u64;		\
	uint32 u32[2];	\
	void operator = (const GSVector4i& v) {GSVector4i::storel(this, v);} \
	bool operator == (const union name& r) const {return ((GSVector4i)r).eq(*this);} \
	bool operator != (const union name& r) const {return !((GSVector4i)r).eq(*this);} \
	operator GSVector4i() const {return GSVector4i::loadl(this);} \
	struct {		\

#define REG128(name)\
union name			\
{					\
	uint64 u64[2];	\
	uint32 u32[4];	\
	struct {		\

#define REG32_(prefix, name) REG32(prefix##name)
#define REG64_(prefix, name) REG64(prefix##name)
#define REG128_(prefix, name) REG128(prefix##name)

#define REG_END }; };
#define REG_END2 };

#define REG32_SET(name) \
union name			\
{					\
	uint32 u32;	\

#define REG64_SET(name) \
union name			\
{					\
	uint64 u64;		\
	uint32 u32[2];	\

#define REG128_SET(name)\
union name			\
{					\
	__m128i m128;  \
	uint64 u64[2];	\
	uint32 u32[4];	\

#define REG_SET_END };

REG64_(GSReg, BGCOLOR)
	uint8 R;
	uint8 G;
	uint8 B;
	uint8 _PAD1[5];
REG_END

REG64_(GSReg, BUSDIR)
	uint32 DIR:1;
	uint32 _PAD1:31;
	uint32 _PAD2:32;
REG_END

REG64_(GSReg, CSR)
	uint32 rSIGNAL:1;
	uint32 rFINISH:1;
	uint32 rHSINT:1;
	uint32 rVSINT:1;
	uint32 rEDWINT:1;
	uint32 rZERO1:1;
	uint32 rZERO2:1;
	uint32 r_PAD1:1;
	uint32 rFLUSH:1;
	uint32 rRESET:1;
	uint32 r_PAD2:2;
	uint32 rNFIELD:1;
	uint32 rFIELD:1;
	uint32 rFIFO:2;
	uint32 rREV:8;
	uint32 rID:8;
	uint32 wSIGNAL:1;
	uint32 wFINISH:1;
	uint32 wHSINT:1;
	uint32 wVSINT:1;
	uint32 wEDWINT:1;
	uint32 wZERO1:1;
	uint32 wZERO2:1;
	uint32 w_PAD1:1;
	uint32 wFLUSH:1;
	uint32 wRESET:1;
	uint32 w_PAD2:2;
	uint32 wNFIELD:1;
	uint32 wFIELD:1;
	uint32 wFIFO:2;
	uint32 wREV:8;
	uint32 wID:8;
REG_END

REG64_(GSReg, DISPFB) // (-1/2)
	uint32 FBP:9;
	uint32 FBW:6;
	uint32 PSM:5;
	uint32 _PAD:12;
	uint32 DBX:11;
	uint32 DBY:11;
	uint32 _PAD2:10;
REG_END2
	uint32 Block() const {return FBP << 5;}
REG_END2

REG64_(GSReg, DISPLAY) // (-1/2)
	uint32 DX:12;
	uint32 DY:11;
	uint32 MAGH:4;
	uint32 MAGV:2;
	uint32 _PAD:3;
	uint32 DW:12;
	uint32 DH:11;
	uint32 _PAD2:9;
REG_END

REG64_(GSReg, EXTBUF)
	uint32 EXBP:14;
	uint32 EXBW:6;
	uint32 FBIN:2;
	uint32 WFFMD:1;
	uint32 EMODA:2;
	uint32 EMODC:2;
	uint32 _PAD1:5;
	uint32 WDX:11;
	uint32 WDY:11;
	uint32 _PAD2:10;
REG_END

REG64_(GSReg, EXTDATA)
	uint32 SX:12;
	uint32 SY:11;
	uint32 SMPH:4;
	uint32 SMPV:2;
	uint32 _PAD1:3;
	uint32 WW:12;
	uint32 WH:11;
	uint32 _PAD2:9;
REG_END

REG64_(GSReg, EXTWRITE)
	uint32 WRITE:1;
	uint32 _PAD1:31;
	uint32 _PAD2:32;
REG_END

REG64_(GSReg, IMR)
	uint32 _PAD1:8;
	uint32 SIGMSK:1;
	uint32 FINISHMSK:1;
	uint32 HSMSK:1;
	uint32 VSMSK:1;
	uint32 EDWMSK:1;
	uint32 _PAD2:19;
	uint32 _PAD3:32;
REG_END

REG64_(GSReg, PMODE)
union
{
	struct
	{
		uint32 EN1:1;
		uint32 EN2:1;
		uint32 CRTMD:3;
		uint32 MMOD:1;
		uint32 AMOD:1;
		uint32 SLBG:1;
		uint32 ALP:8;
		uint32 _PAD:16;
		uint32 _PAD1:32;
	};

	struct
	{
		uint32 EN:2;
		uint32 _PAD2:30;
		uint32 _PAD3:32;
	};
};
REG_END

REG64_(GSReg, SIGLBLID)
	uint32 SIGID;
	uint32 LBLID;
REG_END

REG64_(GSReg, SMODE1)
	uint32 RC:3;
	uint32 LC:7;
	uint32 T1248:2;
	uint32 SLCK:1;
	uint32 CMOD:2;
	uint32 EX:1;
	uint32 PRST:1;
	uint32 SINT:1;
	uint32 XPCK:1;
	uint32 PCK2:2;
	uint32 SPML:4;
	uint32 GCONT:1; // YCrCb
	uint32 PHS:1;
	uint32 PVS:1;
	uint32 PEHS:1;
	uint32 PEVS:1;
	uint32 CLKSEL:2;
	uint32 NVCK:1;
	uint32 SLCK2:1;
	uint32 VCKSEL:2;
	uint32 VHP:1;
	uint32 _PAD1:27;
REG_END

/*

// pal

CLKSEL=1 CMOD=3 EX=0 GCONT=0 LC=32 NVCK=1 PCK2=0 PEHS=0 PEVS=0 PHS=0 PRST=1 PVS=0 RC=4 SINT=0 SLCK=0 SLCK2=1 SPML=4 T1248=1 VCKSEL=1 VHP=0 XPCK=0

// ntsc

CLKSEL=1 CMOD=2 EX=0 GCONT=0 LC=32 NVCK=1 PCK2=0 PEHS=0 PEVS=0 PHS=0 PRST=1 PVS=0 RC=4 SINT=0 SLCK=0 SLCK2=1 SPML=4 T1248=1 VCKSEL=1 VHP=0 XPCK=0

// ntsc progressive (SoTC)

CLKSEL=1 CMOD=0 EX=0 GCONT=0 LC=32 NVCK=1 PCK2=0 PEHS=0 PEVS=0 PHS=0 PRST=1 PVS=0 RC=4 SINT=0 SLCK=0 SLCK2=1 SPML=2 T1248=1 VCKSEL=1 VHP=1 XPCK=0

*/

REG64_(GSReg, SMODE2)
	uint32 INT:1;
	uint32 FFMD:1;
	uint32 DPMS:2;
	uint32 _PAD2:28;
	uint32 _PAD3:32;
REG_END

REG64_(GSReg, SRFSH)
	uint32 _DUMMY;
	// TODO
REG_END

REG64_(GSReg, SYNCH1)
	uint32 _DUMMY;
	// TODO
REG_END

REG64_(GSReg, SYNCH2)
	uint32 _DUMMY;
	// TODO
REG_END

REG64_(GSReg, SYNCV)
	uint32 VFP:10; // Vertical Front Porchinterval (?s)
	uint32 VFPE:10; // Vertical Front Porchinterval End (?s)
	uint32 VBP:12; // Vertical Back Porchinterval (?s)
	uint32 VBPE:10; // Vertical Back Porchinterval End (?s)
	uint32 VDP:11; // Vertical Differential Phase
	uint32 VS:11; // Vertical Synchronization Timing
REG_END

REG64_SET(GSReg)
	GSRegBGCOLOR	BGCOLOR;
	GSRegBUSDIR		BUSDIR;
	GSRegCSR		CSR;
	GSRegDISPFB		DISPFB;
	GSRegDISPLAY	DISPLAY;
	GSRegEXTBUF		EXTBUF;
	GSRegEXTDATA	EXTDATA;
	GSRegEXTWRITE	EXTWRITE;
	GSRegIMR		IMR;
	GSRegPMODE		PMODE;
	GSRegSIGLBLID	SIGLBLID;
	GSRegSMODE1		SMODE1;
	GSRegSMODE2		SMODE2;
REG_SET_END

//
// GIFTag

REG128(GIFTag)
	uint32 NLOOP:15;
	uint32 EOP:1;
	uint32 _PAD1:16;
	uint32 _PAD2:14;
	uint32 PRE:1;
	uint32 PRIM:11;
	uint32 FLG:2; // enum GIF_FLG
	uint32 NREG:4;
	uint64 REGS;
REG_END

// GIFReg

REG64_(GIFReg, ALPHA)
	uint32 A:2;
	uint32 B:2;
	uint32 C:2;
	uint32 D:2;
	uint32 _PAD1:24;
	uint8 FIX;
	uint8 _PAD2[3];
REG_END2
	// opaque => output will be Cs/As
	__forceinline bool IsOpaque() const {return ((A == B || (C == 2 && FIX == 0)) && D == 0) || (A == 0 && B == D && C == 2 && FIX == 0x80);}
	__forceinline bool IsOpaque(int amin, int amax) const {return ((A == B || amax == 0) && D == 0) || (A == 0 && B == D && amin == 0x80 && amax == 0x80);}
	__forceinline bool IsCd() { return (A == B) && (D == 1);}
REG_END2

REG64_(GIFReg, BITBLTBUF)
	uint32 SBP:14;
	uint32 _PAD1:2;
	uint32 SBW:6;
	uint32 _PAD2:2;
	uint32 SPSM:6;
	uint32 _PAD3:2;
	uint32 DBP:14;
	uint32 _PAD4:2;
	uint32 DBW:6;
	uint32 _PAD5:2;
	uint32 DPSM:6;
	uint32 _PAD6:2;
REG_END

REG64_(GIFReg, CLAMP)
union
{
	struct
	{
		uint32 WMS:2;
		uint32 WMT:2;
		uint32 MINU:10;
		uint32 MAXU:10;
		uint32 _PAD1:8;
		uint32 _PAD2:2;
		uint32 MAXV:10;
		uint32 _PAD3:20;
	};

	struct
	{
		uint64 _PAD4:24;
		uint64 MINV:10;
		uint64 _PAD5:30;
	};
};
REG_END

REG64_(GIFReg, COLCLAMP)
	uint32 CLAMP:1;
	uint32 _PAD1:31;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, DIMX)
	int32 DM00:3;
	int32 _PAD00:1;
	int32 DM01:3;
	int32 _PAD01:1;
	int32 DM02:3;
	int32 _PAD02:1;
	int32 DM03:3;
	int32 _PAD03:1;
	int32 DM10:3;
	int32 _PAD10:1;
	int32 DM11:3;
	int32 _PAD11:1;
	int32 DM12:3;
	int32 _PAD12:1;
	int32 DM13:3;
	int32 _PAD13:1;
	int32 DM20:3;
	int32 _PAD20:1;
	int32 DM21:3;
	int32 _PAD21:1;
	int32 DM22:3;
	int32 _PAD22:1;
	int32 DM23:3;
	int32 _PAD23:1;
	int32 DM30:3;
	int32 _PAD30:1;
	int32 DM31:3;
	int32 _PAD31:1;
	int32 DM32:3;
	int32 _PAD32:1;
	int32 DM33:3;
	int32 _PAD33:1;
REG_END

REG64_(GIFReg, DTHE)
	uint32 DTHE:1;
	uint32 _PAD1:31;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, FBA)
	uint32 FBA:1;
	uint32 _PAD1:31;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, FINISH)
	uint32 _PAD1[2];
REG_END

REG64_(GIFReg, FOG)
	uint8 _PAD1[7];
	uint8 F;
REG_END

REG64_(GIFReg, FOGCOL)
	uint8 FCR;
	uint8 FCG;
	uint8 FCB;
	uint8 _PAD1[5];
REG_END

REG64_(GIFReg, FRAME)
	uint32 FBP:9;
	uint32 _PAD1:7;
	uint32 FBW:6;
	uint32 _PAD2:2;
	uint32 PSM:6;
	uint32 _PAD3:2;
	uint32 FBMSK;
REG_END2
	uint32 Block() const {return FBP << 5;}
REG_END2

REG64_(GIFReg, HWREG)
	uint32 DATA_LOWER;
	uint32 DATA_UPPER;
REG_END

REG64_(GIFReg, LABEL)
	uint32 ID;
	uint32 IDMSK;
REG_END

REG64_(GIFReg, MIPTBP1)
	uint64 TBP1:14;
	uint64 TBW1:6;
	uint64 TBP2:14;
	uint64 TBW2:6;
	uint64 TBP3:14;
	uint64 TBW3:6;
	uint64 _PAD:4;
REG_END

REG64_(GIFReg, MIPTBP2)
	uint64 TBP4:14;
	uint64 TBW4:6;
	uint64 TBP5:14;
	uint64 TBW5:6;
	uint64 TBP6:14;
	uint64 TBW6:6;
	uint64 _PAD:4;
REG_END

REG64_(GIFReg, NOP)
	uint32 _PAD[2];
REG_END

REG64_(GIFReg, PABE)
	uint32 PABE:1;
	uint32 _PAD1:31;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, PRIM)
	uint32 PRIM:3;
	uint32 IIP:1;
	uint32 TME:1;
	uint32 FGE:1;
	uint32 ABE:1;
	uint32 AA1:1;
	uint32 FST:1;
	uint32 CTXT:1;
	uint32 FIX:1;
	uint32 _PAD1:21;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, PRMODE)
	uint32 _PRIM:3;
	uint32 IIP:1;
	uint32 TME:1;
	uint32 FGE:1;
	uint32 ABE:1;
	uint32 AA1:1;
	uint32 FST:1;
	uint32 CTXT:1;
	uint32 FIX:1;
	uint32 _PAD2:21;
	uint32 _PAD3:32;
REG_END

REG64_(GIFReg, PRMODECONT)
	uint32 AC:1;
	uint32 _PAD1:31;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, RGBAQ)
	uint8 R;
	uint8 G;
	uint8 B;
	uint8 A;
	float Q;
REG_END

REG64_(GIFReg, SCANMSK)
	uint32 MSK:2;
	uint32 _PAD1:30;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, SCISSOR)
	uint32 SCAX0:11;
	uint32 _PAD1:5;
	uint32 SCAX1:11;
	uint32 _PAD2:5;
	uint32 SCAY0:11;
	uint32 _PAD3:5;
	uint32 SCAY1:11;
	uint32 _PAD4:5;
REG_END

REG64_(GIFReg, SIGNAL)
	uint32 ID;
	uint32 IDMSK;
REG_END

REG64_(GIFReg, ST)
	float S;
	float T;
REG_END

REG64_(GIFReg, TEST)
	uint32 ATE:1;
	uint32 ATST:3;
	uint32 AREF:8;
	uint32 AFAIL:2;
	uint32 DATE:1;
	uint32 DATM:1;
	uint32 ZTE:1;
	uint32 ZTST:2;
	uint32 _PAD1:13;
	uint32 _PAD2:32;
REG_END2
	__forceinline bool DoFirstPass() const {return !ATE || ATST != ATST_NEVER;} // not all pixels fail automatically
	__forceinline bool DoSecondPass() const {return ATE && ATST != ATST_ALWAYS && AFAIL != AFAIL_KEEP;} // pixels may fail, write fb/z
	__forceinline bool NoSecondPass() const {return ATE && ATST != ATST_ALWAYS && AFAIL == AFAIL_KEEP;} // pixels may fail, no output
REG_END2

REG64_(GIFReg, TEX0)
union
{
	struct
	{
		uint32 TBP0:14;
		uint32 TBW:6;
		uint32 PSM:6;
		uint32 TW:4;
		uint32 _PAD1:2;
		uint32 _PAD2:2;
		uint32 TCC:1;
		uint32 TFX:2;
		uint32 CBP:14;
		uint32 CPSM:4;
		uint32 CSM:1;
		uint32 CSA:5;
		uint32 CLD:3;
	};

	struct
	{
		uint64 _PAD3:30;
		uint64 TH:4;
		uint64 _PAD4:30;
	};
};
REG_END2
	__forceinline bool IsRepeating() const
	{
		if(TBW < 2)
		{
			if(PSM == PSM_PSMT8) return TW > 7 || TH > 6;
			if(PSM == PSM_PSMT4) return TW > 7 || TH > 7;
		}

		// The recast of TBW seems useless but it avoid tons of warning from GCC...
		return ((uint32)TBW << 6u) < (1u << TW);
	}
REG_END2

REG64_(GIFReg, TEX1)
	uint32 LCM:1;
	uint32 _PAD1:1;
	uint32 MXL:3;
	uint32 MMAG:1;
	uint32 MMIN:3;
	uint32 MTBA:1;
	uint32 _PAD2:9;
	uint32 L:2;
	uint32 _PAD3:11;
	int32  K:12; // 1:7:4
	uint32 _PAD4:20;
REG_END2
	bool IsMinLinear() const {return (MMIN == 1) || (MMIN & 4);}
	bool IsMagLinear() const {return MMAG;}
REG_END2

REG64_(GIFReg, TEX2)
	uint32 _PAD1:20;
	uint32 PSM:6;
	uint32 _PAD2:6;
	uint32 _PAD3:5;
	uint32 CBP:14;
	uint32 CPSM:4;
	uint32 CSM:1;
	uint32 CSA:5;
	uint32 CLD:3;
REG_END

REG64_(GIFReg, TEXA)
	uint8 TA0;
	uint8 _PAD1:7;
	uint8 AEM:1;
	uint16 _PAD2;
	uint8 TA1:8;
	uint8 _PAD3[3];
REG_END

REG64_(GIFReg, TEXCLUT)
	uint32 CBW:6;
	uint32 COU:6;
	uint32 COV:10;
	uint32 _PAD1:10;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, TEXFLUSH)
	uint32 _PAD1:32;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, TRXDIR)
	uint32 XDIR:2;
	uint32 _PAD1:30;
	uint32 _PAD2:32;
REG_END

REG64_(GIFReg, TRXPOS)
	uint32 SSAX:11;
	uint32 _PAD1:5;
	uint32 SSAY:11;
	uint32 _PAD2:5;
	uint32 DSAX:11;
	uint32 _PAD3:5;
	uint32 DSAY:11;
	uint32 DIRY:1;
	uint32 DIRX:1;
	uint32 _PAD4:3;
REG_END

REG64_(GIFReg, TRXREG)
	uint32 RRW:12;
	uint32 _PAD1:20;
	uint32 RRH:12;
	uint32 _PAD2:20;
REG_END

// GSState::GIFPackedRegHandlerUV and GSState::GIFRegHandlerUV will make sure that the _PAD1/2 bits are set to zero

REG64_(GIFReg, UV)
	uint16 U;
//	uint32 _PAD1:2;
	uint16 V;
//	uint32 _PAD2:2;
	uint32 _PAD3;
REG_END

// GSState::GIFRegHandlerXYOFFSET will make sure that the _PAD1/2 bits are set to zero

REG64_(GIFReg, XYOFFSET)
	uint32 OFX; // :16; uint32 _PAD1:16;
	uint32 OFY; // :16; uint32 _PAD2:16;
REG_END

REG64_(GIFReg, XYZ)
	uint16 X;
	uint16 Y;
	uint32 Z;
REG_END

REG64_(GIFReg, XYZF)
	uint16 X;
	uint16 Y;
	uint32 Z:24;
	uint32 F:8;
REG_END

REG64_(GIFReg, ZBUF)
	uint32 ZBP:9;
	uint32 _PAD1:15;
	// uint32 PSM:4;
	// uint32 _PAD2:4;
	uint32 PSM:6;
	uint32 _PAD2:2;
	uint32 ZMSK:1;
	uint32 _PAD3:31;
REG_END2
	uint32 Block() const {return ZBP << 5;}
REG_END2

REG64_SET(GIFReg)
	GIFRegALPHA			ALPHA;
	GIFRegBITBLTBUF		BITBLTBUF;
	GIFRegCLAMP			CLAMP;
	GIFRegCOLCLAMP		COLCLAMP;
	GIFRegDIMX			DIMX;
	GIFRegDTHE			DTHE;
	GIFRegFBA			FBA;
	GIFRegFINISH		FINISH;
	GIFRegFOG			FOG;
	GIFRegFOGCOL		FOGCOL;
	GIFRegFRAME			FRAME;
	GIFRegHWREG			HWREG;
	GIFRegLABEL			LABEL;
	GIFRegMIPTBP1		MIPTBP1;
	GIFRegMIPTBP2		MIPTBP2;
	GIFRegNOP			NOP;
	GIFRegPABE			PABE;
	GIFRegPRIM			PRIM;
	GIFRegPRMODE		PRMODE;
	GIFRegPRMODECONT	PRMODECONT;
	GIFRegRGBAQ			RGBAQ;
	GIFRegSCANMSK		SCANMSK;
	GIFRegSCISSOR		SCISSOR;
	GIFRegSIGNAL		SIGNAL;
	GIFRegST			ST;
	GIFRegTEST			TEST;
	GIFRegTEX0			TEX0;
	GIFRegTEX1			TEX1;
	GIFRegTEX2			TEX2;
	GIFRegTEXA			TEXA;
	GIFRegTEXCLUT		TEXCLUT;
	GIFRegTEXFLUSH		TEXFLUSH;
	GIFRegTRXDIR		TRXDIR;
	GIFRegTRXPOS		TRXPOS;
	GIFRegTRXREG		TRXREG;
	GIFRegUV			UV;
	GIFRegXYOFFSET		XYOFFSET;
	GIFRegXYZ			XYZ;
	GIFRegXYZF			XYZF;
	GIFRegZBUF			ZBUF;
REG_SET_END

// GIFPacked

REG128_(GIFPacked, PRIM)
	uint32 PRIM:11;
	uint32 _PAD1:21;
	uint32 _PAD2[3];
REG_END

REG128_(GIFPacked, RGBA)
	uint8 R;
	uint8 _PAD1[3];
	uint8 G;
	uint8 _PAD2[3];
	uint8 B;
	uint8 _PAD3[3];
	uint8 A;
	uint8 _PAD4[3];
REG_END

REG128_(GIFPacked, STQ)
	float S;
	float T;
	float Q;
	uint32 _PAD1:32;
REG_END

REG128_(GIFPacked, UV)
	uint32 U:14;
	uint32 _PAD1:18;
	uint32 V:14;
	uint32 _PAD2:18;
	uint32 _PAD3:32;
	uint32 _PAD4:32;
REG_END

REG128_(GIFPacked, XYZF2)
	uint16 X;
	uint16 _PAD1;
	uint16 Y;
	uint16 _PAD2;
	uint32 _PAD3:4;
	uint32 Z:24;
	uint32 _PAD4:4;
	uint32 _PAD5:4;
	uint32 F:8;
	uint32 _PAD6:3;
	uint32 ADC:1;
	uint32 _PAD7:16;
REG_END2
	uint32 Skip() const {return u32[3] & 0x8000;}
REG_END2

REG128_(GIFPacked, XYZ2)
	uint16 X;
	uint16 _PAD1;
	uint16 Y;
	uint16 _PAD2;
	uint32 Z;
	uint32 _PAD3:15;
	uint32 ADC:1;
	uint32 _PAD4:16;
REG_END2
	uint32 Skip() const {return u32[3] & 0x8000;}
REG_END2

REG128_(GIFPacked, FOG)
	uint32 _PAD1;
	uint32 _PAD2;
	uint32 _PAD3;
	uint32 _PAD4:4;
	uint32 F:8;
	uint32 _PAD5:20;
REG_END

REG128_(GIFPacked, A_D)
	uint64 DATA;
	uint8 ADDR:8; // enum GIF_A_D_REG
	uint8 _PAD1[3+4];
REG_END

REG128_(GIFPacked, NOP)
	uint32 _PAD1;
	uint32 _PAD2;
	uint32 _PAD3;
	uint32 _PAD4;
REG_END

REG128_SET(GIFPackedReg)
	GIFReg			r;
	GIFPackedPRIM	PRIM;
	GIFPackedRGBA	RGBA;
	GIFPackedSTQ	STQ;
	GIFPackedUV		UV;
	GIFPackedXYZF2	XYZF2;
	GIFPackedXYZ2	XYZ2;
	GIFPackedFOG	FOG;
	GIFPackedA_D	A_D;
	GIFPackedNOP	NOP;
REG_SET_END

struct alignas(32) GIFPath
{
	GIFTag tag;
	uint32 nloop;
	uint32 nreg;
	uint32 reg;
	uint32 type;
	GSVector4i regs;

	enum {TYPE_UNKNOWN, TYPE_ADONLY, TYPE_STQRGBAXYZF2, TYPE_STQRGBAXYZ2};

	__forceinline void SetTag(const void* mem)
	{
		const GIFTag* RESTRICT src = (const GIFTag*)mem;

		// the compiler has a hard time not reloading every time a field of src is accessed

		uint32 a = src->u32[0];
		uint32 b = src->u32[1];

		tag.u32[0] = a;
		tag.u32[1] = b;

		nloop = a & 0x7fff;

		if(nloop == 0) return;

		GSVector4i v = GSVector4i::loadl(&src->REGS); // REGS not stored to tag.REGS, only into this->regs, restored before saving the state though

		nreg = (b & 0xf0000000) ? (b >> 28) : 16; // src->NREG
		regs = v.upl8(v >> 4) & GSVector4i::x0f(nreg);
		reg = 0;

		type = TYPE_UNKNOWN;

		if(tag.FLG == GIF_FLG_PACKED)
		{
			if(regs.eq8(GSVector4i(0x0e0e0e0e)).mask() == (1 << nreg) - 1)
			{
				type = TYPE_ADONLY;
			}
			else
			{
				switch(nreg)
				{
				case 1: break;
				case 2: break;
				case 3:
					if(regs.u32[0] == 0x00040102) type = TYPE_STQRGBAXYZF2; // many games, TODO: formats mixed with NOPs (xeno2: 040f010f02, 04010f020f, mgs3: 04010f0f02, 0401020f0f, 04010f020f)
					if(regs.u32[0] == 0x00050102) type = TYPE_STQRGBAXYZ2; // GoW (has other crazy formats, like ...030503050103)
					// TODO: common types with UV instead
					break;
				case 4: break;
				case 5: break;
				case 6: break;
				case 7: break;
				case 8: break;
				case 9:
					if(regs.u32[0] == 0x02040102 && regs.u32[1] == 0x01020401 && regs.u32[2] == 0x00000004) {type = TYPE_STQRGBAXYZF2; nreg = 3; nloop *= 3;} // ffx
					break;
				case 10: break;
				case 11: break;
				case 12:
					if(regs.u32[0] == 0x02040102 && regs.u32[1] == 0x01020401 && regs.u32[2] == 0x04010204) {type = TYPE_STQRGBAXYZF2; nreg = 3; nloop *= 4;} // dq8 (not many, mostly 040102)
					break;
				case 13: break;
				case 14: break;
				case 15: break;
				case 16: break;
				default:
					__assume(0);
				}
			}
		}
	}

	__forceinline uint8 GetReg() const
	{
		return regs.u8[reg];
	}

	__forceinline uint8 GetReg(uint32 index) const
	{
		return regs.u8[index];
	}

	__forceinline bool StepReg()
	{
		if(++reg == nreg)
		{
			reg = 0;

			if(--nloop == 0)
			{
				return false;
			}
		}

		return true;
	}
};

struct GSPrivRegSet
{
	union
	{
		struct
		{
			GSRegPMODE		PMODE;
			uint64			_pad1;
			GSRegSMODE1		SMODE1;
			uint64			_pad2;
			GSRegSMODE2		SMODE2;
			uint64			_pad3;
			GSRegSRFSH		SRFSH;
			uint64			_pad4;
			GSRegSYNCH1		SYNCH1;
			uint64			_pad5;
			GSRegSYNCH2		SYNCH2;
			uint64			_pad6;
			GSRegSYNCV		SYNCV;
			uint64			_pad7;
			struct {
				GSRegDISPFB		DISPFB;
				uint64			_pad1;
				GSRegDISPLAY	DISPLAY;
				uint64			_pad2;
			} DISP[2];
			GSRegEXTBUF		EXTBUF;
			uint64			_pad8;
			GSRegEXTDATA	EXTDATA;
			uint64			_pad9;
			GSRegEXTWRITE	EXTWRITE;
			uint64			_pad10;
			GSRegBGCOLOR	BGCOLOR;
			uint64			_pad11;
		};

		uint8 _pad12[0x1000];
	};

	union
	{
		struct
		{
			GSRegCSR		CSR;
			uint64			_pad13;
			GSRegIMR		IMR;
			uint64			_pad14;
			uint64			_unk1[4];
			GSRegBUSDIR		BUSDIR;
			uint64			_pad15;
			uint64			_unk2[6];
			GSRegSIGLBLID	SIGLBLID;
			uint64			_pad16;
		};

		uint8 _pad17[0x1000];
	};

	void Dump(FILE* fp)
	{
		for(int i = 0; i < 2; i++)
		{
			if (!fp) return;

			if(i == 0 && !PMODE.EN1) continue;
			if(i == 1 && !PMODE.EN2) continue;

			fprintf(fp, "DISPFB[%d] BP=%05x BW=%u PSM=%u DBX=%u DBY=%u\n",
					i,
					DISP[i].DISPFB.Block(),
					DISP[i].DISPFB.FBW,
					DISP[i].DISPFB.PSM,
					DISP[i].DISPFB.DBX,
					DISP[i].DISPFB.DBY
				   );

			fprintf(fp, "DISPLAY[%d] DX=%u DY=%u DW=%u DH=%u MAGH=%u MAGV=%u\n",
					i,
					DISP[i].DISPLAY.DX,
					DISP[i].DISPLAY.DY,
					DISP[i].DISPLAY.DW,
					DISP[i].DISPLAY.DH,
					DISP[i].DISPLAY.MAGH,
					DISP[i].DISPLAY.MAGV
				   );
		}

		fprintf(fp, "PMODE EN1=%u EN2=%u CRTMD=%u MMOD=%u AMOD=%u SLBG=%u ALP=%u\n",
				PMODE.EN1,
				PMODE.EN2,
				PMODE.CRTMD,
				PMODE.MMOD,
				PMODE.AMOD,
				PMODE.SLBG,
				PMODE.ALP
			   );

		fprintf(fp, "SMODE1 CLKSEL=%u CMOD=%u EX=%u GCONT=%u LC=%u NVCK=%u PCK2=%u PEHS=%u PEVS=%u PHS=%u PRST=%u PVS=%u RC=%u SINT=%u SLCK=%u SLCK2=%u SPML=%u T1248=%u VCKSEL=%u VHP=%u XPCK=%u\n",
				SMODE1.CLKSEL,
				SMODE1.CMOD,
				SMODE1.EX,
				SMODE1.GCONT,
				SMODE1.LC,
				SMODE1.NVCK,
				SMODE1.PCK2,
				SMODE1.PEHS,
				SMODE1.PEVS,
				SMODE1.PHS,
				SMODE1.PRST,
				SMODE1.PVS,
				SMODE1.RC,
				SMODE1.SINT,
				SMODE1.SLCK,
				SMODE1.SLCK2,
				SMODE1.SPML,
				SMODE1.T1248,
				SMODE1.VCKSEL,
				SMODE1.VHP,
				SMODE1.XPCK
					);

		fprintf(fp, "SMODE2 INT=%u FFMD=%u DPMS=%u\n",
				SMODE2.INT,
				SMODE2.FFMD,
				SMODE2.DPMS
			   );

		fprintf(fp, "SRFSH %08x_%08x\n",
				SRFSH.u32[0],
				SRFSH.u32[1]
			   );

		fprintf(fp, "SYNCH1 %08x_%08x\n",
				SYNCH1.u32[0],
				SYNCH1.u32[1]
			   );

		fprintf(fp, "SYNCH2 %08x_%08x\n",
				SYNCH2.u32[0],
				SYNCH2.u32[1]
			   );

		fprintf(fp, "SYNCV VBP=%u VBPE=%u VDP=%u VFP=%u VFPE=%u VS=%u\n",
				SYNCV.VBP,
				SYNCV.VBPE,
				SYNCV.VDP,
				SYNCV.VFP,
				SYNCV.VFPE,
				SYNCV.VS
			   );

		fprintf(fp, "CSR %08x_%08x\n",
				CSR.u32[0],
				CSR.u32[1]
			   );

		fprintf(fp, "BGCOLOR B=%u G=%u R=%u\n",
				BGCOLOR.B,
				BGCOLOR.G,
				BGCOLOR.R
			   );

		fprintf(fp, "EXTBUF BP=0x%x BW=%u FBIN=%u WFFMD=%u EMODA=%u EMODC=%u WDX=%u WDY=%u\n",
				EXTBUF.EXBP, EXTBUF.EXBW, EXTBUF.FBIN, EXTBUF.WFFMD,
				EXTBUF.EMODA, EXTBUF.EMODC, EXTBUF.WDX, EXTBUF.WDY
			   );

		fprintf(fp, "EXTDATA SX=%u SY=%u SMPH=%u SMPV=%u WW=%u WH=%u\n",
				EXTDATA.SX, EXTDATA.SY, EXTDATA.SMPH, EXTDATA.SMPV, EXTDATA.WW, EXTDATA.WH
			   );

		fprintf(fp, "EXTWRITE EN=%u\n", EXTWRITE.WRITE);
	}

	void Dump(const std::string& filename)
	{
		FILE* fp = fopen(filename.c_str(), "wt");
		if (fp) {
			Dump(fp);
			fclose(fp);
		}
	}
};

#pragma pack(pop)

enum {KEYPRESS=1, KEYRELEASE=2};
struct GSKeyEventData {uint32 key, type;};

enum {FREEZE_LOAD=0, FREEZE_SAVE=1, FREEZE_SIZE=2};
struct GSFreezeData {int size; uint8* data;};

enum stateType {ST_WRITE, ST_TRANSFER, ST_VSYNC};

enum class GSVideoMode : uint8
{
	Unknown,
	NTSC,
	PAL,
	VESA,
	SDTV_480P,
	HDTV_720P,
	HDTV_1080I
};

// Ordering was done to keep compatibility with older ini file.
enum class BiFiltering : uint8
{
	Nearest,
	Forced,
	PS2,
	Forced_But_Sprite,
};

enum class TriFiltering : uint8
{
	None,
	PS2,
	Forced,
};

enum class HWMipmapLevel : int
{
	Automatic = -1,
	Off,
	Basic,
	Full
};

enum class CRCHackLevel : int8
{
	Automatic = -1,
	None,
	Minimum,
	Partial,
	Full,
	Aggressive
};

#ifdef ENABLE_ACCURATE_BUFFER_EMULATION
const GSVector2i default_rt_size(2048, 2048);
#else
const GSVector2i default_rt_size(1280, 1024);
#endif