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

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// Copyright (C) 2003-2008 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifndef _BPMEMORY_H
#define _BPMEMORY_H
#include "Common.h"
#pragma pack(4)
#define BPMEM_GENMODE 0x00
#define BPMEM_IND_MTX 0x06
#define BPMEM_RAS1_SS0 0x25 // ind tex coord scale 0
#define BPMEM_RAS1_SS1 0x26 // ind tex coord scale 1
#define BPMEM_ZMODE 0x40
#define BPMEM_BLENDMODE 0x41
#define BPMEM_CONSTANTALPHA 0x42
#define BPMEM_ALPHACOMPARE 0xF3
#define BPMEM_LINEPTWIDTH 0x22
#define BPMEM_TEXINVALIDATE 0x66
#define BPMEM_SCISSORTL 0x20
#define BPMEM_SCISSORBR 0x21
#define BPMEM_SCISSOROFFSET 0x59
#define BPMEM_CLEARBBOX1 0x55 // let's hope not many games use bboxes..
#define BPMEM_CLEARBBOX2 0x56 // TODO(ector): add something that watches bboxes
#define BPMEM_TEXMODE0_1 0x80
#define BPMEM_TEXMODE0_2 0xA0
#define BPMEM_FOGRANGE 0xE8
#define BPMEM_FOGPARAM0 0xEE
#define BPMEM_FOGBMAGNITUDE 0xEF
#define BPMEM_FOGBEXPONENT 0xF0
#define BPMEM_FOGPARAM3 0xF1
#define BPMEM_FOGCOLOR 0xF2
#define BPMEM_ZTEX1 0xF4
#define BPMEM_ZTEX2 0xF5
#define BPMEM_DRAWDONE 0x45
#define BPMEM_PE_TOKEN_ID 0x47
#define BPMEM_PE_TOKEN_INT_ID 0x48
//////////////////////////////////////////////////////////////////////////
// Tev/combiner things
//////////////////////////////////////////////////////////////////////////
#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 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
enum TevBias
{
TB_ZERO = 0,
TB_ADDHALF = 1,
TB_SUBHALF = 2,
TB_COMPARE = 3,
};
enum AlphaOp
{
ALPHAOP_AND = 0,
ALPHAOP_OR,
ALPHAOP_XOR,
ALPHAOP_XNOR,
};
union IND_MTXA
{
struct
{
signed ma : 11;
signed mb : 11;
unsigned s0 : 2; // bits 0-1 of scale factor
unsigned rid : 8;
};
u32 hex;
};
union IND_MTXB
{
struct
{
signed mc : 11;
signed md : 11;
unsigned s1 : 2; // bits 2-3 of scale factor
unsigned rid : 8;
};
u32 hex;
};
union IND_MTXC
{
struct
{
signed me : 11;
signed mf : 11;
unsigned s2 : 2; // bits 4-5 of scale factor
unsigned rid : 8;
};
u32 hex;
};
struct IND_MTX
{
IND_MTXA col0;
IND_MTXB col1;
IND_MTXC col2;
};
union IND_IMASK
{
struct
{
unsigned mask : 24;
unsigned 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
{
unsigned d : 4; // TEVSELCC_X
unsigned c : 4; // TEVSELCC_X
unsigned b : 4; // TEVSELCC_X
unsigned a : 4; // TEVSELCC_X
unsigned bias : 2;
unsigned op : 1;
unsigned clamp : 1;
unsigned shift : 2;
unsigned dest : 2; //1,2,3
};
u32 hex;
};
union AlphaCombiner
{
struct
{
unsigned rswap : 2;
unsigned tswap : 2;
unsigned d : 3; // TEVSELCA_
unsigned c : 3; // TEVSELCA_
unsigned b : 3; // TEVSELCA_
unsigned a : 3; // TEVSELCA_
unsigned bias : 2; //GXTevBias
unsigned op : 1;
unsigned clamp : 1;
unsigned shift : 2;
unsigned 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
{
unsigned bt : 2; // indirect tex stage ID
unsigned fmt : 2; // format: ITF_X
unsigned bias : 3; // ITB_X
unsigned bs : 2; // ITBA_X, indicates which coordinate will become the 'bump alpha'
unsigned mid : 4; // matrix id to multiply offsets with
unsigned sw : 3; // ITW_X, wrapping factor for S of regular coord
unsigned tw : 3; // ITW_X, wrapping factor for T of regular coord
unsigned lb_utclod : 1; // use modified or unmodified texture coordinates for LOD computation
unsigned fb_addprev : 1; // 1 if the texture coordinate results from the previous TEV stage should be added
unsigned pad0 : 3;
unsigned rid : 8;
};
struct
{
u32 hex : 21;
u32 unused : 11;
};
bool IsActive() { return (hex&0x17fe00)!=0; }
};
union TwoTevStageOrders
{
struct
{
unsigned texmap0 : 3; // indirect tex stage texmap
unsigned texcoord0 : 3;
unsigned enable0 : 1; // 1 if should read from texture
unsigned colorchan0 : 3; // RAS1_CC_X
unsigned pad0 : 2;
unsigned texmap1 : 3;
unsigned texcoord1 : 3;
unsigned enable1 : 1; // 1 if should read from texture
unsigned colorchan1 : 3; // RAS1_CC_X
unsigned pad1 : 2;
unsigned 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
{
unsigned ss0 : 4; // indirect tex stage 0, 2^(-ss0)
unsigned ts0 : 4; // indirect tex stage 0
unsigned ss1 : 4; // indirect tex stage 1
unsigned ts1 : 4; // indirect tex stage 1
unsigned pad : 8;
unsigned 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
{
unsigned bi0 : 3; // indirect tex stage 0 ntexmap
unsigned bc0 : 3; // indirect tex stage 0 ntexcoord
unsigned bi1 : 3;
unsigned bc1 : 3;
unsigned bi2 : 3;
unsigned bc3 : 3;
unsigned bi4 : 3;
unsigned bc4 : 3;
unsigned 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
{
unsigned wrap_s : 2;
unsigned wrap_t : 2;
unsigned mag_filter : 1;
unsigned min_filter : 3;
unsigned diag_lod : 1;
signed lod_bias : 10;
unsigned max_aniso : 2;
unsigned lod_clamp : 1;
};
u32 hex;
};
union TexMode1
{
struct
{
unsigned min_lod : 8;
unsigned max_lod : 8;
};
u32 hex;
};
union TexImage0
{
struct
{
unsigned width : 10; //actually w-1
unsigned height : 10; //actually h-1
unsigned format : 4;
};
u32 hex;
};
union TexImage1
{
struct
{
unsigned tmem_offset : 15; // we ignore texture caching for now, we do it ourselves
unsigned cache_width : 3;
unsigned cache_height : 3;
unsigned image_type : 1;
};
u32 hex;
};
union TexImage2
{
struct
{
unsigned tmem_offset : 15; // we ignore texture caching for now, we do it ourselves
unsigned cache_width : 3;
unsigned cache_height : 3;
};
u32 hex;
};
union TexImage3
{
struct
{
unsigned image_base: 24; //address in memory >> 5 (was 20 for GC)
};
u32 hex;
};
union TexTLUT
{
struct
{
unsigned tmem_offset : 10;
unsigned tlut_format : 2;
};
u32 hex;
};
union ZTex1
{
struct
{
unsigned bias : 24;
};
u32 hex;
};
union ZTex2
{
struct
{
unsigned type : 2; // TEV_Z_TYPE_X
unsigned 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
{
unsigned numtexgens : 4; // 0xF
unsigned numcolchans : 5; // 0x1E0
unsigned ms_en : 1; // 0x200
unsigned numtevstages : 4; // 0x3C00
unsigned cullmode : 2; // 0xC000
unsigned numindstages : 3; // 0x30000
unsigned zfreeze : 5; //0x3C0000
};
u32 hex;
};
union LPSize
{
struct
{
unsigned linesize : 8; // in 1/6th pixels
unsigned pointsize : 8; // in 1/6th pixels
unsigned lineoff : 3;
unsigned pointoff : 3;
unsigned lineaspect : 1;
unsigned padding : 1;
};
u32 hex;
};
union X12Y12
{
struct
{
unsigned y : 12;
unsigned x : 12;
};
u32 hex;
};
union X10Y10
{
struct
{
unsigned x : 10;
unsigned y : 10;
};
u32 hex;
};
//////////////////////////////////////////////////////////////////////////
// Framebuffer/pixel stuff (incl fog)
//////////////////////////////////////////////////////////////////////////
union BlendMode
{
struct
{
unsigned blendenable : 1;
unsigned logicopenable : 1;
unsigned dither : 1;
unsigned colorupdate : 1;
unsigned alphaupdate : 1;
unsigned dstfactor : 3; //BLEND_ONE, BLEND_INV_SRc etc
unsigned srcfactor : 3;
unsigned subtract : 1;
unsigned logicmode : 4;
};
u32 hex;
};
union FogParam0
{
struct
{
unsigned mantissa : 11;
unsigned exponent : 8;
unsigned sign : 1;
};
float GetA() {
union { u32 i; float f; } dummy;
dummy.i = ((u32)sign<<31)|((u32)exponent<<23)|((u32)mantissa<<12);
return dummy.f;
}
u32 hex;
};
union FogParam3
{
struct
{
unsigned c_mant : 11;
unsigned c_exp : 8;
unsigned c_sign : 1;
unsigned proj : 1; // 0 - perspective, 1 - orthographic
unsigned 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);
return dummy.f;
}
u32 hex;
};
// 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;
u32 color; //0:b 8:g 16:r - nice!
};
union ZMode
{
struct
{
unsigned testenable : 1;
unsigned func : 3;
unsigned updateenable : 1; //size?
};
u32 hex;
};
union ConstantAlpha
{
struct
{
unsigned alpha : 8;
unsigned enable : 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
union PE_CONTROL
{
struct
{
unsigned pixel_format : 3; // PIXELFMT_X
unsigned zformat : 3; // 0 - linear, 1 - near, 2 - mid, 3 - far
unsigned zcomploc : 1; // 1: before tex stage
unsigned unused : 17;
unsigned rid : 8;
};
u32 hex;
};
//////////////////////////////////////////////////////////////////////////
// Texture coordinate stuff
//////////////////////////////////////////////////////////////////////////
union TCInfo
{
struct
{
unsigned scale_minus_1 : 16;
unsigned range_bias : 1;
unsigned cylindric_wrap : 1;
};
u32 hex;
};
struct TCoordInfo
{
TCInfo s;
TCInfo t;
};
union ColReg
{
u32 hex;
struct
{
signed a : 11;
unsigned : 1;
signed b : 11;
unsigned type : 1;
};
};
struct TevReg
{
ColReg low;
ColReg high;
};
union TevKSel
{
struct {
unsigned swap1 : 2;
unsigned swap2 : 2;
unsigned kcsel0 : 5;
unsigned kasel0 : 5;
unsigned kcsel1 : 5;
unsigned kasel1 : 5;
};
u32 hex;
int getKC(int i) {return i?kcsel1:kcsel0;}
int getKA(int i) {return i?kasel1:kasel0;}
};
union AlphaFunc
{
struct
{
unsigned ref0 : 8;
unsigned ref1 : 8;
unsigned comp0 : 3;
unsigned comp1 : 3;
unsigned logic : 2;
};
u32 hex;
};
union UPE_Copy
{
u32 Hex;
struct
{
unsigned clamp0 : 1;
unsigned clamp1 : 1;
unsigned : 1;
unsigned target_pixel_format : 4; // realformat is (fmt/2)+((fmt&1)*8).... for some reason the msb is the lsb
unsigned gamma : 2;
unsigned half_scale : 1; // real size should be 2x smaller (run a gauss filter?)
unsigned scale_something : 1;
unsigned clear : 1;
unsigned frame_to_field : 2;
unsigned copy_to_xfb : 1;
unsigned intensity_fmt : 1; // if set, is an intensity format (I4,I8,IA4,IA8)
unsigned : 16; // seems to set everything to 1s when target pixel format is invalid
};
};
//////////////////////////////////////////////////////////////////////////
// All of BP memory
//////////////////////////////////////////////////////////////////////////
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
u32 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
u32 triggerEFBCopy; //52
u32 copyfilter[2]; //53,54
u32 boundbox0;//55
u32 boundbox1;//56
u32 unknown7[2];//57,58
X10Y10 scissorOffset; //59
u32 unknown8[10]; //5a,5b,5c,5d, 5e,5f,60,61, 62, 63 (GXTexModeSync), 0x60-0x63 have to do with preloaded textures?
u32 tlutXferSrc; //64
u32 tlutXferDest; //65
u32 texinvalidate;//66
u32 metric; //67
u32 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
u32 fogRangeAdj; //0xE8
u32 unknown15[3]; //0xe9,0xea,0xeb - fog related
u32 tev_range_adj_c; //0xec - screenx center for range adjustment, range adjustment enable
u32 tev_range_adj_k; //0xed - specifies range adjustment function = sqrt(x*x+k*k)/k
FogParams fog; //0xEE,0xEF,0xF0,0xF1,0xF2
AlphaFunc alphaFunc; //0xF3
ZTex1 ztex1; //0xf4,0xf5
ZTex2 ztex2;
TevKSel tevksel[8];//0xf6,0xf7,f8,f9,fa,fb,fc,fd
u32 bpMask; //0xFE
u32 unknown18; //ff
};
#pragma pack()
extern BPMemory bpmem;
void LoadBPReg(u32 value0);
#endif
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