dolphin/Source/Core/VideoCommon/Src/BPMemory.h

// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.

#ifndef _BPMEMORY_H
#define _BPMEMORY_H

#include "Common.h"

#pragma pack(4)

#define BPMEM_GENMODE          0x00
#define BPMEM_DISPLAYCOPYFILER 0x01 // 0x01 + 4
#define BPMEM_IND_MTXA         0x06 // 0x06 + (3 * 3)
#define BPMEM_IND_MTXB         0x07 // 0x07 + (3 * 3)
#define BPMEM_IND_MTXC         0x08 // 0x08 + (3 * 3)
#define BPMEM_IND_IMASK        0x0F
#define BPMEM_IND_CMD          0x10 // 0x10 + 16
#define BPMEM_SCISSORTL        0x20
#define BPMEM_SCISSORBR        0x21
#define BPMEM_LINEPTWIDTH      0x22
#define BPMEM_PERF0_TRI        0x23
#define BPMEM_PERF0_QUAD       0x24
#define BPMEM_RAS1_SS0         0x25
#define BPMEM_RAS1_SS1         0x26
#define BPMEM_IREF             0x27
#define BPMEM_TREF             0x28 // 0x28 + 8
#define BPMEM_SU_SSIZE         0x30 // 0x30 + (2 * 8)
#define BPMEM_SU_TSIZE         0x31 // 0x31 + (2 * 8)
#define BPMEM_ZMODE            0x40
#define BPMEM_BLENDMODE        0x41
#define BPMEM_CONSTANTALPHA    0x42
#define BPMEM_ZCOMPARE         0x43
#define BPMEM_FIELDMASK        0x44
#define BPMEM_SETDRAWDONE      0x45
#define BPMEM_BUSCLOCK0        0x46
#define BPMEM_PE_TOKEN_ID	   0x47
#define BPMEM_PE_TOKEN_INT_ID  0x48
#define BPMEM_EFB_TL           0x49
#define BPMEM_EFB_BR           0x4A
#define BPMEM_EFB_ADDR         0x4B
#define BPMEM_MIPMAP_STRIDE    0x4D
#define BPMEM_COPYYSCALE       0x4E
#define BPMEM_CLEAR_AR         0x4F
#define BPMEM_CLEAR_GB         0x50
#define BPMEM_CLEAR_Z          0x51
#define BPMEM_TRIGGER_EFB_COPY 0x52
#define BPMEM_COPYFILTER0      0x53
#define BPMEM_COPYFILTER1      0x54
#define BPMEM_CLEARBBOX1       0x55
#define BPMEM_CLEARBBOX2       0x56
#define BPMEM_CLEAR_PIXEL_PERF 0x57
#define BPMEM_REVBITS          0x58
#define BPMEM_SCISSOROFFSET    0x59
#define BPMEM_PRELOAD_ADDR     0x60
#define BPMEM_PRELOAD_TMEMEVEN 0x61
#define BPMEM_PRELOAD_TMEMODD  0x62
#define BPMEM_PRELOAD_MODE     0x63
#define BPMEM_LOADTLUT0        0x64
#define BPMEM_LOADTLUT1        0x65
#define BPMEM_TEXINVALIDATE    0x66
#define BPMEM_PERF1            0x67
#define BPMEM_FIELDMODE        0x68
#define BPMEM_BUSCLOCK1        0x69
#define BPMEM_TX_SETMODE0      0x80 // 0x80 + 4
#define BPMEM_TX_SETMODE1      0x84 // 0x84 + 4
#define BPMEM_TX_SETIMAGE0     0x88 // 0x88 + 4
#define BPMEM_TX_SETIMAGE1     0x8C // 0x8C + 4
#define BPMEM_TX_SETIMAGE2     0x90 // 0x90 + 4
#define BPMEM_TX_SETIMAGE3     0x94 // 0x94 + 4
#define BPMEM_TX_SETTLUT       0x98 // 0x98 + 4
#define BPMEM_TX_SETMODE0_4    0xA0 // 0xA0 + 4
#define BPMEM_TX_SETMODE1_4    0xA4 // 0xA4 + 4
#define BPMEM_TX_SETIMAGE0_4   0xA8 // 0xA8 + 4
#define BPMEM_TX_SETIMAGE1_4   0xAC // 0xA4 + 4
#define BPMEM_TX_SETIMAGE2_4   0xB0 // 0xB0 + 4
#define BPMEM_TX_SETIMAGE3_4   0xB4 // 0xB4 + 4
#define BPMEM_TX_SETLUT_4      0xB8 // 0xB8 + 4
#define BPMEM_TEV_COLOR_ENV    0xC0 // 0xC0 + (2 * 16)
#define BPMEM_TEV_ALPHA_ENV    0xC1 // 0xC1 + (2 * 16)
#define BPMEM_TEV_REGISTER_L   0xE0 // 0xE0 + (2 * 4)
#define BPMEM_TEV_REGISTER_H   0xE1 // 0xE1 + (2 * 4)
#define BPMEM_FOGRANGE         0xE8 // 0xE8 + 6
#define BPMEM_FOGPARAM0        0xEE
#define BPMEM_FOGBMAGNITUDE    0xEF
#define BPMEM_FOGBEXPONENT     0xF0
#define BPMEM_FOGPARAM3        0xF1
#define BPMEM_FOGCOLOR         0xF2
#define BPMEM_ALPHACOMPARE     0xF3
#define BPMEM_BIAS             0xF4
#define BPMEM_ZTEX2            0xF5
#define BPMEM_TEV_KSEL         0xF6 // 0xF6 + 8
#define BPMEM_BP_MASK          0xFE


// Tev/combiner things

#define TEVSCALE_1  0
#define TEVSCALE_2  1
#define TEVSCALE_4  2
#define TEVDIVIDE_2 3

#define TEVCMP_R8    0
#define TEVCMP_GR16  1
#define TEVCMP_BGR24 2
#define TEVCMP_RGB8  3

#define TEVOP_ADD 0
#define TEVOP_SUB 1
#define TEVCMP_R8_GT 8
#define TEVCMP_R8_EQ 9
#define TEVCMP_GR16_GT 10
#define TEVCMP_GR16_EQ 11
#define TEVCMP_BGR24_GT 12
#define TEVCMP_BGR24_EQ 13
#define TEVCMP_RGB8_GT  14
#define TEVCMP_RGB8_EQ  15
#define TEVCMP_A8_GT 14
#define TEVCMP_A8_EQ 15

#define TEVCOLORARG_CPREV 0
#define TEVCOLORARG_APREV 1
#define TEVCOLORARG_C0 2
#define TEVCOLORARG_A0 3
#define TEVCOLORARG_C1 4
#define TEVCOLORARG_A1 5
#define TEVCOLORARG_C2 6
#define TEVCOLORARG_A2 7
#define TEVCOLORARG_TEXC 8
#define TEVCOLORARG_TEXA 9
#define TEVCOLORARG_RASC 10
#define TEVCOLORARG_RASA 11
#define TEVCOLORARG_ONE 12
#define TEVCOLORARG_HALF 13
#define TEVCOLORARG_KONST 14
#define TEVCOLORARG_ZERO 15

#define TEVALPHAARG_APREV 0
#define TEVALPHAARG_A0    1
#define TEVALPHAARG_A1    2
#define TEVALPHAARG_A2    3
#define TEVALPHAARG_TEXA  4
#define TEVALPHAARG_RASA  5
#define TEVALPHAARG_KONST 6
#define TEVALPHAARG_ZERO  7

#define GX_TEVPREV       0
#define GX_TEVREG0       1
#define GX_TEVREG1       2
#define GX_TEVREG2       3

#define ALPHACMP_NEVER   0
#define ALPHACMP_LESS    1
#define ALPHACMP_EQUAL   2
#define ALPHACMP_LEQUAL  3
#define ALPHACMP_GREATER 4
#define ALPHACMP_NEQUAL  5
#define ALPHACMP_GEQUAL  6
#define ALPHACMP_ALWAYS  7

enum Compare
{
	COMPARE_NEVER = 0,
	COMPARE_LESS,
	COMPARE_EQUAL,
	COMPARE_LEQUAL,
	COMPARE_GREATER,
	COMPARE_NEQUAL,
	COMPARE_GEQUAL,
	COMPARE_ALWAYS
};

#define ZTEXTURE_DISABLE 0
#define ZTEXTURE_ADD 1
#define ZTEXTURE_REPLACE 2

#define TevBias_ZERO     0
#define TevBias_ADDHALF  1
#define TevBias_SUBHALF  2
#define TevBias_COMPARE  3

enum AlphaOp
{
	ALPHAOP_AND = 0,
	ALPHAOP_OR,
	ALPHAOP_XOR,
	ALPHAOP_XNOR,
};

union IND_MTXA
{
	struct
	{
		s32 ma : 11;
		s32 mb : 11;
		u32 s0 : 2; // bits 0-1 of scale factor
		u32 rid : 8;
	};
	u32 hex;
};

union IND_MTXB
{
	struct
	{
		s32 mc : 11;
		s32 md : 11;
		u32 s1 : 2; // bits 2-3 of scale factor
		u32 rid : 8;
	};
	u32 hex;
};

union IND_MTXC
{
	struct
	{
		s32 me : 11;
		s32 mf : 11;
		u32 s2 : 2; // bits 4-5 of scale factor
		u32 rid : 8;
	};
	u32 hex;
};

struct IND_MTX
{
	IND_MTXA col0;
	IND_MTXB col1;
	IND_MTXC col2;
};

union IND_IMASK
{
	struct
	{
		u32 mask : 24;
		u32 rid : 8;
	};
	u32 hex;
};

#define TEVSELCC_CPREV 0
#define TEVSELCC_APREV 1
#define TEVSELCC_C0 2
#define TEVSELCC_A0 3
#define TEVSELCC_C1 4
#define TEVSELCC_A1 5
#define TEVSELCC_C2 6
#define TEVSELCC_A2 7
#define TEVSELCC_TEXC 8
#define TEVSELCC_TEXA 9
#define TEVSELCC_RASC 10
#define TEVSELCC_RASA 11
#define TEVSELCC_ONE 12
#define TEVSELCC_HALF 13
#define TEVSELCC_KONST 14
#define TEVSELCC_ZERO 15

#define TEVSELCA_APREV 0
#define TEVSELCA_A0 1
#define TEVSELCA_A1 2
#define TEVSELCA_A2 3
#define TEVSELCA_TEXA 4
#define TEVSELCA_RASA 5
#define TEVSELCA_KONST 6
#define TEVSELCA_ZERO 7

struct TevStageCombiner
{
	union ColorCombiner
	{
		struct  //abc=8bit,d=10bit
		{
			u32 d : 4; // TEVSELCC_X
			u32 c : 4; // TEVSELCC_X
			u32 b : 4; // TEVSELCC_X
			u32 a : 4; // TEVSELCC_X

			u32 bias : 2;
			u32 op : 1;
			u32 clamp : 1;

			u32 shift : 2;
			u32 dest : 2;  //1,2,3

		};
		u32 hex;
	};
	union AlphaCombiner
	{
		struct
		{
			u32 rswap : 2;
			u32 tswap : 2;
			u32 d : 3; // TEVSELCA_
			u32 c : 3; // TEVSELCA_
			u32 b : 3; // TEVSELCA_
			u32 a : 3; // TEVSELCA_

			u32 bias : 2; //GXTevBias
			u32 op : 1;
			u32 clamp : 1;

			u32 shift : 2;
			u32 dest : 2;  //1,2,3
		};
		u32 hex;
	};

	ColorCombiner colorC;
	AlphaCombiner alphaC;
};

#define ITF_8 0
#define ITF_5 1
#define ITF_4 2
#define ITF_3 3

#define ITB_NONE 0
#define ITB_S    1
#define ITB_T    2
#define ITB_ST   3
#define ITB_U    4
#define ITB_SU   5
#define ITB_TU   6
#define ITB_STU  7

#define ITBA_OFF 0
#define ITBA_S   1
#define ITBA_T   2
#define ITBA_U   3

#define ITW_OFF 0
#define ITW_256 1
#define ITW_128 2
#define ITW_64  3
#define ITW_32  4
#define ITW_16  5
#define ITW_0   6

// several discoveries:
// GXSetTevIndBumpST(tevstage, indstage, matrixind)
//  if( matrix == 2 ) realmat = 6; // 10
//  else if( matrix == 3 ) realmat = 7; // 11
//  else if( matrix == 1 ) realmat = 5; // 9
//  GXSetTevIndirect(tevstage, indstage, 0, 3, realmat, 6, 6, 0, 0, 0)
//  GXSetTevIndirect(tevstage+1, indstage, 0, 3, realmat+4, 6, 6, 1, 0, 0)
//  GXSetTevIndirect(tevstage+2, indstage, 0, 0, 0, 0, 0, 1, 0, 0)

	union TevStageIndirect
	{
		// if mid, sw, tw, and addprev are 0, then no indirect stage is used, mask = 0x17fe00
		struct
		{
			u32 bt			: 2; // indirect tex stage ID
			u32 fmt			: 2; // format: ITF_X
			u32 bias		: 3; // ITB_X
			u32 bs			: 2; // ITBA_X, indicates which coordinate will become the 'bump alpha'
			u32 mid			: 4; // matrix id to multiply offsets with
			u32 sw			: 3; // ITW_X, wrapping factor for S of regular coord
			u32 tw			: 3; // ITW_X, wrapping factor for T of regular coord
			u32 lb_utclod	: 1; // use modified or unmodified texture coordinates for LOD computation
			u32 fb_addprev	: 1; // 1 if the texture coordinate results from the previous TEV stage should be added
			u32 pad0		: 3;
			u32 rid			: 8;
		};
		struct
		{
			u32 hex : 21;
			u32 unused : 11;
		};

		bool IsActive() { return (hex & 0x17fe00) != 0; }
	};

	union TwoTevStageOrders
	{
		struct
		{
			u32 texmap0    : 3; // indirect tex stage texmap
			u32 texcoord0  : 3;
			u32 enable0    : 1; // 1 if should read from texture
			u32 colorchan0 : 3; // RAS1_CC_X

			u32 pad0       : 2;

			u32 texmap1    : 3;
			u32 texcoord1  : 3;
			u32 enable1    : 1; // 1 if should read from texture
			u32 colorchan1 : 3; // RAS1_CC_X

			u32 pad1       : 2;
			u32 rid        : 8;
		};
		u32 hex;
		int getTexMap(int i){return i?texmap1:texmap0;}
		int getTexCoord(int i){return i?texcoord1:texcoord0;}
		int getEnable(int i){return i?enable1:enable0;}
		int getColorChan(int i){return i?colorchan1:colorchan0;}
	};

union TEXSCALE
{
	struct
	{
		u32 ss0 : 4; // indirect tex stage 0, 2^(-ss0)
		u32 ts0 : 4; // indirect tex stage 0
		u32 ss1 : 4; // indirect tex stage 1
		u32 ts1 : 4; // indirect tex stage 1
		u32 pad : 8;
		u32 rid : 8;
	};
	u32 hex;

	float getScaleS(int i){return 1.0f/(float)(1<<(i?ss1:ss0));}
	float getScaleT(int i){return 1.0f/(float)(1<<(i?ts1:ts0));}
};

union RAS1_IREF
{
	struct
	{
		u32 bi0 : 3; // indirect tex stage 0 ntexmap
		u32 bc0 : 3; // indirect tex stage 0 ntexcoord
		u32 bi1 : 3;
		u32 bc1 : 3;
		u32 bi2 : 3;
		u32 bc3 : 3;
		u32 bi4 : 3;
		u32 bc4 : 3;
		u32 rid : 8;
	};
	u32 hex;

	u32 getTexCoord(int i) { return (hex>>(6*i+3))&3; }
	u32 getTexMap(int i) { return (hex>>(6*i))&3; }
};


// Texture structs

union TexMode0
{
	struct
	{
		u32 wrap_s : 2;
		u32 wrap_t : 2;
		u32 mag_filter : 1;
		u32 min_filter : 3;
		u32 diag_lod : 1;
		s32 lod_bias : 8;
		u32 pad0 : 2;
		u32 max_aniso : 2;
		u32 lod_clamp : 1;
	};
	u32 hex;
};
union TexMode1
{
	struct
	{
		u32 min_lod : 8;
		u32 max_lod : 8;
	};
	u32 hex;
};
union TexImage0
{
	struct
	{
		u32 width  : 10; //actually w-1
		u32 height : 10; //actually h-1
		u32 format : 4;
	};
	u32 hex;
};
union TexImage1
{
	struct
	{
		u32 tmem_even : 15; // tmem line index for even LODs
		u32 cache_width : 3;
		u32 cache_height : 3;
		u32 image_type : 1; // 1 if this texture is managed manually (0 means we'll autofetch the texture data whenever it changes)
	};
	u32 hex;
};

union TexImage2
{
	struct
	{
		u32 tmem_odd : 15; // tmem line index for odd LODs
		u32 cache_width : 3;
		u32 cache_height : 3;
	};
	u32 hex;
};

union TexImage3
{
	struct
	{
		u32 image_base: 24;  //address in memory >> 5 (was 20 for GC)
	};
	u32 hex;
};
union TexTLUT
{
	struct
	{
		u32 tmem_offset : 10;
		u32 tlut_format : 2;
	};
	u32 hex;
};

union ZTex1
{
	struct
	{
		u32 bias : 24;
	};
	u32 hex;
};

union ZTex2
{
	struct
	{
		u32 type : 2; // TEV_Z_TYPE_X
		u32 op : 2; // GXZTexOp
	};
	u32 hex;
};

//  Z-texture types (formats)
#define TEV_ZTEX_TYPE_U8	0
#define TEV_ZTEX_TYPE_U16	1
#define TEV_ZTEX_TYPE_U24	2

#define TEV_ZTEX_DISABLE  0
#define TEV_ZTEX_ADD      1
#define TEV_ZTEX_REPLACE  2


struct FourTexUnits
{
	TexMode0 texMode0[4];
	TexMode1 texMode1[4];
	TexImage0 texImage0[4];
	TexImage1 texImage1[4];
	TexImage2 texImage2[4];
	TexImage3 texImage3[4];
	TexTLUT texTlut[4];
	u32 unknown[4];
};



// Geometry/other structs

union GenMode
{
	struct
	{
		u32 numtexgens : 4;    //     0xF
		u32 numcolchans : 5;   //   0x1E0
		u32 multisampling : 1; //   0x200
		u32 numtevstages : 4;  //  0x3C00
		u32 cullmode : 2;      //  0xC000
		u32 numindstages : 3;  // 0x30000
		u32 zfreeze : 5;       //0x3C0000
	};
	u32 hex;
};

union LPSize
{
	struct
	{
		u32 linesize : 8; // in 1/6th pixels
		u32 pointsize : 8; // in 1/6th pixels
		u32 lineoff : 3;
		u32 pointoff : 3;
		u32 lineaspect : 1; // interlacing: adjust for pixels having AR of 1/2
		u32 padding : 1;
	};
	u32 hex;
};


union X12Y12
{
	struct
	{
		u32 y : 12;
		u32 x : 12;
	};
	u32 hex;
};
union X10Y10
{
	struct
	{
		u32 x : 10;
		u32 y : 10;
	};
	u32 hex;
};


// Framebuffer/pixel stuff (incl fog)

#define GX_BL_ZERO         0
#define GX_BL_ONE          1
#define GX_BL_SRCCLR       2 // for dst factor
#define GX_BL_INVSRCCLR    3 // for dst factor
#define GX_BL_SRCALPHA     4
#define GX_BL_INVSRCALPHA  5
#define GX_BL_DSTALPHA     6
#define GX_BL_INVDSTALPHA  7
#define GX_BL_DSTCLR       GX_BL_SRCCLR // for src factor
#define GX_BL_INVDSTCLR    GX_BL_INVSRCCLR // for src factor

union BlendMode
{
	struct
	{
		u32 blendenable   : 1;
		u32 logicopenable : 1;
		u32 dither : 1;
		u32 colorupdate : 1;
		u32 alphaupdate : 1;
		u32 dstfactor : 3; //BLEND_ONE, BLEND_INV_SRc etc
		u32 srcfactor : 3;
		u32 subtract : 1;
		u32 logicmode : 4;
	};
	u32 hex;
};


union FogParam0
{
	struct
	{
		u32 mantissa : 11;
		u32 exponent : 8;
		u32 sign : 1;
	};

	float GetA()
	{
		union { u32 i; float f; } dummy;
		dummy.i = ((u32)sign << 31) | ((u32)exponent << 23) | ((u32)mantissa << 12); // scale mantissa from 11 to 23 bits
		return dummy.f;
	}

	u32 hex;
};

union FogParam3
{
	struct
	{
		u32 c_mant : 11;
		u32 c_exp : 8;
		u32 c_sign : 1;
		u32 proj : 1; // 0 - perspective, 1 - orthographic
		u32 fsel : 3; // 0 - off, 2 - linear, 4 - exp, 5 - exp2, 6 - backward exp, 7 - backward exp2
	};

	// amount to subtract from eyespacez after range adjustment
	float GetC()
	{
		union { u32 i; float f; } dummy;
		dummy.i = ((u32)c_sign << 31) | ((u32)c_exp << 23) | ((u32)c_mant << 12); // scale mantissa from 11 to 23 bits
		return dummy.f;
	}

	u32 hex;
};

union FogRangeKElement
{
	struct
	{
		u32 HI : 12;
		u32 LO : 12;
		u32 regid : 8;
	};

	// TODO: Which scaling coefficient should we use here? This is just a guess!
	float GetValue(int i) { return (i ? HI : LO) / 256.f; }
	u32 HEX;
};

struct FogRangeParams
{
	union RangeBase
	{
		struct
		{
			u32 Center : 10; // viewport center + 342
			u32 Enabled : 1;
			u32 unused : 13;
			u32 regid : 8;
		};
		u32 hex;
	};
	RangeBase Base;
	FogRangeKElement K[5];
};
// final eq: ze = A/(B_MAG - (Zs>>B_SHF));
struct FogParams
{
	FogParam0 a;
	u32 b_magnitude;
	u32 b_shift; // b's exp + 1?
	FogParam3 c_proj_fsel;

	union FogColor
	{
		struct
		{
			u32 b  : 8;
			u32 g  : 8;
			u32 r  : 8;
		};
		u32 hex;
	};

	FogColor color;  //0:b 8:g 16:r - nice!
};

union ZMode
{
	struct
	{
		u32 testenable		: 1;
		u32 func			: 3;
		u32 updateenable	: 1;  //size?
	};
	u32 hex;
};

union ConstantAlpha
{
	struct
	{
		u32 alpha : 8;
		u32 enable : 1;
	};
	u32 hex;
};

union FieldMode
{
	struct
	{
		u32 texLOD : 1; // adjust vert tex LOD computation to account for interlacing
	};
	u32 hex;
};

union FieldMask
{
	struct
	{
		// If bit is not set, do not write field to EFB
		u32 odd : 1;
		u32 even : 1;
	};
	u32 hex;
};

#define PIXELFMT_RGB8_Z24 0
#define PIXELFMT_RGBA6_Z24 1
#define PIXELFMT_RGB565_Z16 2
#define PIXELFMT_Z24 3
#define PIXELFMT_Y8 4
#define PIXELFMT_U8 5
#define PIXELFMT_V8 6
#define PIXELFMT_YUV420 7

#define ZC_LINEAR 0
#define ZC_NEAR 1
#define ZC_MID 2
#define ZC_FAR 3
// It seems these Z formats aren't supported/were removed ?
#define ZC_INV_LINEAR 4
#define ZC_INV_NEAR 5
#define ZC_INV_MID 6
#define ZC_INV_FAR 7

union PE_CONTROL
{
	struct
	{
		u32 pixel_format : 3;	// PIXELFMT_X
		u32 zformat : 3;		// Z Compression for 16bit Z format
		u32 early_ztest : 1;	// 1: before tex stage
		u32 unused : 17;
		u32 rid : 8;
	};

	u32 hex;
};


// Texture coordinate stuff

union TCInfo
{
	struct
	{
		u32 scale_minus_1 : 16;
		u32 range_bias : 1;
		u32 cylindric_wrap : 1;
		// These bits only have effect in the s field of TCoordInfo
		u32 line_offset : 1;
		u32 point_offset : 1;
	};
	u32 hex;
};
struct TCoordInfo
{
	TCInfo s;
	TCInfo t;
};


union ColReg
{
	u32 hex;
	struct
	{
		s32 a : 11;
		u32 : 1;
		s32 b : 11;
		u32 type : 1;
	};
};

struct TevReg
{
	ColReg low;
	ColReg high;
};

union TevKSel
{
	struct {
		u32 swap1 : 2;
		u32 swap2 : 2;
		u32 kcsel0 : 5;
		u32 kasel0 : 5;
		u32 kcsel1 : 5;
		u32 kasel1 : 5;
	};
	u32 hex;

	int getKC(int i) {return i?kcsel1:kcsel0;}
	int getKA(int i) {return i?kasel1:kasel0;}
};

union AlphaTest
{
	struct
	{
		u32 ref0 : 8;
		u32 ref1 : 8;
		u32 comp0 : 3;
		u32 comp1 : 3;
		u32 logic : 2;
	};
	u32 hex;

	enum TEST_RESULT
	{
		UNDETERMINED = 0,
		FAIL = 1,
		PASS = 2,
	};

	inline TEST_RESULT TestResult() const
	{
		switch(logic)
		{
		case 0: // AND
			if (comp0 == ALPHACMP_ALWAYS && comp1 == ALPHACMP_ALWAYS)
				return PASS;
			if (comp0 == ALPHACMP_NEVER || comp1 == ALPHACMP_NEVER)
				return FAIL;
			break;

		case 1: // OR
			if (comp0 == ALPHACMP_ALWAYS || comp1 == ALPHACMP_ALWAYS)
				return PASS;
			if (comp0 == ALPHACMP_NEVER && comp1 == ALPHACMP_NEVER)
				return FAIL;
			break;

		case 2: // XOR
			if ((comp0 == ALPHACMP_ALWAYS && comp1 == ALPHACMP_NEVER) || (comp0 == ALPHACMP_NEVER && comp1 == ALPHACMP_ALWAYS))
				return PASS;
			if ((comp0 == ALPHACMP_ALWAYS && comp1 == ALPHACMP_ALWAYS) || (comp0 == ALPHACMP_NEVER && comp1 == ALPHACMP_NEVER))
				return FAIL;
			break;

		case 3: // XNOR
			if ((comp0 == ALPHACMP_ALWAYS && comp1 == ALPHACMP_NEVER) || (comp0 == ALPHACMP_NEVER && comp1 == ALPHACMP_ALWAYS))
				return FAIL;
			if ((comp0 == ALPHACMP_ALWAYS && comp1 == ALPHACMP_ALWAYS) || (comp0 == ALPHACMP_NEVER && comp1 == ALPHACMP_NEVER))
				return PASS;
			break;
		}
		return UNDETERMINED;
	}
};

union UPE_Copy
{
	u32 Hex;
	struct
	{
		u32 clamp0				: 1; // if set clamp top
		u32 clamp1				: 1; // if set clamp bottom
		u32 yuv					: 1; // if set, color conversion from RGB to YUV
		u32 target_pixel_format	: 4; // realformat is (fmt/2)+((fmt&1)*8).... for some reason the msb is the lsb (pattern: cycling right shift)
		u32 gamma				: 2; // gamma correction.. 0 = 1.0 ; 1 = 1.7 ; 2 = 2.2 ; 3 is reserved
		u32 half_scale			: 1; // "mipmap" filter... 0 = no filter (scale 1:1) ; 1 = box filter (scale 2:1)
		u32 scale_invert		: 1; // if set vertical scaling is on
		u32 clear				: 1;
		u32 frame_to_field		: 2; // 0 progressive ; 1 is reserved ; 2 = interlaced (even lines) ; 3 = interlaced 1 (odd lines)
		u32 copy_to_xfb			: 1;
		u32 intensity_fmt		: 1; // if set, is an intensity format (I4,I8,IA4,IA8)
		u32	auto_conv			: 1; // if 0 automatic color conversion by texture format and pixel type
	};
	u32 tp_realFormat() {
		return target_pixel_format / 2 + (target_pixel_format & 1) * 8;
	}
};

union BPU_PreloadTileInfo
{
	u32 hex;
	struct
	{
		u32 count : 15;
		u32 type : 2;
	};
};

struct BPS_TmemConfig
{
	u32 preload_addr;
	u32 preload_tmem_even;
	u32 preload_tmem_odd;
	BPU_PreloadTileInfo preload_tile_info;
	u32 tlut_src;
	u32 tlut_dest;
	u32 texinvalidate;
};

// All of BP memory


struct BPCmd
{
	int address;
	int changes;
	int newvalue;
};

struct BPMemory
{
	GenMode genMode;
	u32 display_copy_filter[4]; // 01-04
	u32 unknown; // 05
	// indirect matrices (set by GXSetIndTexMtx, selected by TevStageIndirect::mid)
	// abc form a 2x3 offset matrix, there's 3 such matrices
	// the 3 offset matrices can either be indirect type, S-type, or T-type
	// 6bit scale factor s is distributed across IND_MTXA/B/C.
	// before using matrices scale by 2^-(s-17)
	IND_MTX indmtx[3];//06-0e GXSetIndTexMtx, 2x3 matrices
	IND_IMASK imask;//0f
	TevStageIndirect tevind[16];//10 GXSetTevIndirect
	X12Y12 scissorTL; //20
	X12Y12 scissorBR; //21
	LPSize lineptwidth; //22 line and point width
	u32 sucounter; //23
	u32 rascounter; //24
	TEXSCALE texscale[2]; //25-26 GXSetIndTexCoordScale
	RAS1_IREF tevindref; //27 GXSetIndTexOrder
	TwoTevStageOrders tevorders[8]; //28-2F
	TCoordInfo texcoords[8]; //0x30 s,t,s,t,s,t,s,t...
	ZMode zmode; //40
	BlendMode blendmode; //41
	ConstantAlpha dstalpha;  //42
	PE_CONTROL zcontrol; //43 GXSetZCompLoc, GXPixModeSync
	FieldMask fieldmask; //44
	u32 drawdone;  //45, bit1=1 if end of list
	u32 unknown5;  //46 clock?
	u32 petoken; //47
	u32 petokenint; // 48
	X10Y10 copyTexSrcXY; // 49
	X10Y10 copyTexSrcWH; // 4a
	u32 copyTexDest; //4b// 4b == CopyAddress (GXDispCopy and GXTexCopy use it)
	u32 unknown6; //4c
	u32 copyMipMapStrideChannels; // 4d usually set to 4 when dest is single channel, 8 when dest is 2 channel, 16 when dest is RGBA
								// also, doubles whenever mipmap box filter option is set (excent on RGBA). Probably to do with number of bytes to look at when smoothing
	u32 dispcopyyscale; //4e
	u32 clearcolorAR; //4f
	u32 clearcolorGB; //50
	u32 clearZValue; //51
	UPE_Copy triggerEFBCopy; //52
	u32 copyfilter[2]; //53,54
	u32 boundbox0;//55
	u32 boundbox1;//56
	u32 unknown7[2];//57,58
	X10Y10 scissorOffset; //59
	u32 unknown8[6]; //5a,5b,5c,5d, 5e,5f
	BPS_TmemConfig tmem_config; // 60-66
	u32 metric; //67
	FieldMode fieldmode;//68
	u32 unknown10[7];//69-6F
	u32 unknown11[16];//70-7F
	FourTexUnits tex[2]; //80-bf
	TevStageCombiner combiners[16]; //0xC0-0xDF
	TevReg tevregs[4];  //0xE0
	FogRangeParams fogRange;  // 0xE8
	FogParams fog; //0xEE,0xEF,0xF0,0xF1,0xF2
	AlphaTest alpha_test; //0xF3
	ZTex1 ztex1; //0xf4,0xf5
	ZTex2 ztex2;
	TevKSel tevksel[8];//0xf6,0xf7,f8,f9,fa,fb,fc,fd
	u32 bpMask; //0xFE
	u32 unknown18; //ff

	bool UseEarlyDepthTest() const { return zcontrol.early_ztest && zmode.testenable; }
	bool UseLateDepthTest() const { return !zcontrol.early_ztest && zmode.testenable; }
};

#pragma pack()

extern BPMemory bpmem;

void LoadBPReg(u32 value0);

void GetBPRegInfo(const u8* data, char* name, size_t name_size, char* desc, size_t desc_size);

#endif // _BPMEMORY_H