forked from libretro/snes9x
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dsp.h
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dsp.h
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/*****************************************************************************\
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
This file is licensed under the Snes9x License.
For further information, consult the LICENSE file in the root directory.
\*****************************************************************************/
#ifndef _DSP1_H_
#define _DSP1_H_
enum
{
M_DSP1_LOROM_S,
M_DSP1_LOROM_L,
M_DSP1_HIROM,
M_DSP2_LOROM,
M_DSP3_LOROM,
M_DSP4_LOROM
};
struct SDSP0
{
uint32 maptype;
uint32 boundary;
};
struct SDSP1
{
bool8 waiting4command;
bool8 first_parameter;
uint8 command;
uint32 in_count;
uint32 in_index;
uint32 out_count;
uint32 out_index;
uint8 parameters[512];
uint8 output[512];
int16 CentreX;
int16 CentreY;
int16 VOffset;
int16 VPlane_C;
int16 VPlane_E;
// Azimuth and Zenith angles
int16 SinAas;
int16 CosAas;
int16 SinAzs;
int16 CosAzs;
// Clipped Zenith angle
int16 SinAZS;
int16 CosAZS;
int16 SecAZS_C1;
int16 SecAZS_E1;
int16 SecAZS_C2;
int16 SecAZS_E2;
int16 Nx;
int16 Ny;
int16 Nz;
int16 Gx;
int16 Gy;
int16 Gz;
int16 C_Les;
int16 E_Les;
int16 G_Les;
int16 matrixA[3][3];
int16 matrixB[3][3];
int16 matrixC[3][3];
int16 Op00Multiplicand;
int16 Op00Multiplier;
int16 Op00Result;
int16 Op20Multiplicand;
int16 Op20Multiplier;
int16 Op20Result;
int16 Op10Coefficient;
int16 Op10Exponent;
int16 Op10CoefficientR;
int16 Op10ExponentR;
int16 Op04Angle;
int16 Op04Radius;
int16 Op04Sin;
int16 Op04Cos;
int16 Op0CA;
int16 Op0CX1;
int16 Op0CY1;
int16 Op0CX2;
int16 Op0CY2;
int16 Op02FX;
int16 Op02FY;
int16 Op02FZ;
int16 Op02LFE;
int16 Op02LES;
int16 Op02AAS;
int16 Op02AZS;
int16 Op02VOF;
int16 Op02VVA;
int16 Op02CX;
int16 Op02CY;
int16 Op0AVS;
int16 Op0AA;
int16 Op0AB;
int16 Op0AC;
int16 Op0AD;
int16 Op06X;
int16 Op06Y;
int16 Op06Z;
int16 Op06H;
int16 Op06V;
int16 Op06M;
int16 Op01m;
int16 Op01Zr;
int16 Op01Xr;
int16 Op01Yr;
int16 Op11m;
int16 Op11Zr;
int16 Op11Xr;
int16 Op11Yr;
int16 Op21m;
int16 Op21Zr;
int16 Op21Xr;
int16 Op21Yr;
int16 Op0DX;
int16 Op0DY;
int16 Op0DZ;
int16 Op0DF;
int16 Op0DL;
int16 Op0DU;
int16 Op1DX;
int16 Op1DY;
int16 Op1DZ;
int16 Op1DF;
int16 Op1DL;
int16 Op1DU;
int16 Op2DX;
int16 Op2DY;
int16 Op2DZ;
int16 Op2DF;
int16 Op2DL;
int16 Op2DU;
int16 Op03F;
int16 Op03L;
int16 Op03U;
int16 Op03X;
int16 Op03Y;
int16 Op03Z;
int16 Op13F;
int16 Op13L;
int16 Op13U;
int16 Op13X;
int16 Op13Y;
int16 Op13Z;
int16 Op23F;
int16 Op23L;
int16 Op23U;
int16 Op23X;
int16 Op23Y;
int16 Op23Z;
int16 Op14Zr;
int16 Op14Xr;
int16 Op14Yr;
int16 Op14U;
int16 Op14F;
int16 Op14L;
int16 Op14Zrr;
int16 Op14Xrr;
int16 Op14Yrr;
int16 Op0EH;
int16 Op0EV;
int16 Op0EX;
int16 Op0EY;
int16 Op0BX;
int16 Op0BY;
int16 Op0BZ;
int16 Op0BS;
int16 Op1BX;
int16 Op1BY;
int16 Op1BZ;
int16 Op1BS;
int16 Op2BX;
int16 Op2BY;
int16 Op2BZ;
int16 Op2BS;
int16 Op28X;
int16 Op28Y;
int16 Op28Z;
int16 Op28R;
int16 Op1CX;
int16 Op1CY;
int16 Op1CZ;
int16 Op1CXBR;
int16 Op1CYBR;
int16 Op1CZBR;
int16 Op1CXAR;
int16 Op1CYAR;
int16 Op1CZAR;
int16 Op1CX1;
int16 Op1CY1;
int16 Op1CZ1;
int16 Op1CX2;
int16 Op1CY2;
int16 Op1CZ2;
uint16 Op0FRamsize;
uint16 Op0FPass;
int16 Op2FUnknown;
int16 Op2FSize;
int16 Op08X;
int16 Op08Y;
int16 Op08Z;
int16 Op08Ll;
int16 Op08Lh;
int16 Op18X;
int16 Op18Y;
int16 Op18Z;
int16 Op18R;
int16 Op18D;
int16 Op38X;
int16 Op38Y;
int16 Op38Z;
int16 Op38R;
int16 Op38D;
};
struct SDSP2
{
bool8 waiting4command;
uint8 command;
uint32 in_count;
uint32 in_index;
uint32 out_count;
uint32 out_index;
uint8 parameters[512];
uint8 output[512];
bool8 Op05HasLen;
int32 Op05Len;
uint8 Op05Transparent;
bool8 Op06HasLen;
int32 Op06Len;
uint16 Op09Word1;
uint16 Op09Word2;
bool8 Op0DHasLen;
int32 Op0DOutLen;
int32 Op0DInLen;
};
struct SDSP3
{
uint16 DR;
uint16 SR;
uint16 MemoryIndex;
int16 WinLo;
int16 WinHi;
int16 AddLo;
int16 AddHi;
uint16 Codewords;
uint16 Outwords;
uint16 Symbol;
uint16 BitCount;
uint16 Index;
uint16 Codes[512];
uint16 BitsLeft;
uint16 ReqBits;
uint16 ReqData;
uint16 BitCommand;
uint8 BaseLength;
uint16 BaseCodes;
uint16 BaseCode;
uint8 CodeLengths[8];
uint16 CodeOffsets[8];
uint16 LZCode;
uint8 LZLength;
uint16 X;
uint16 Y;
uint8 Bitmap[8];
uint8 Bitplane[8];
uint16 BMIndex;
uint16 BPIndex;
uint16 Count;
int16 op3e_x;
int16 op3e_y;
int16 op1e_terrain[0x2000];
int16 op1e_cost[0x2000];
int16 op1e_weight[0x2000];
int16 op1e_cell;
int16 op1e_turn;
int16 op1e_search;
int16 op1e_x;
int16 op1e_y;
int16 op1e_min_radius;
int16 op1e_max_radius;
int16 op1e_max_search_radius;
int16 op1e_max_path_radius;
int16 op1e_lcv_radius;
int16 op1e_lcv_steps;
int16 op1e_lcv_turns;
};
struct SDSP4
{
bool8 waiting4command;
bool8 half_command;
uint16 command;
uint32 in_count;
uint32 in_index;
uint32 out_count;
uint32 out_index;
uint8 parameters[512];
uint8 output[512];
uint8 byte;
uint16 address;
// op control
int8 Logic; // controls op flow
// projection format
int16 lcv; // loop-control variable
int16 distance; // z-position into virtual world
int16 raster; // current raster line
int16 segments; // number of raster lines drawn
// 1.15.16 or 1.15.0 [sign, integer, fraction]
int32 world_x; // line of x-projection in world
int32 world_y; // line of y-projection in world
int32 world_dx; // projection line x-delta
int32 world_dy; // projection line y-delta
int16 world_ddx; // x-delta increment
int16 world_ddy; // y-delta increment
int32 world_xenv; // world x-shaping factor
int16 world_yofs; // world y-vertical scroll
int16 view_x1; // current viewer-x
int16 view_y1; // current viewer-y
int16 view_x2; // future viewer-x
int16 view_y2; // future viewer-y
int16 view_dx; // view x-delta factor
int16 view_dy; // view y-delta factor
int16 view_xofs1; // current viewer x-vertical scroll
int16 view_yofs1; // current viewer y-vertical scroll
int16 view_xofs2; // future viewer x-vertical scroll
int16 view_yofs2; // future viewer y-vertical scroll
int16 view_yofsenv; // y-scroll shaping factor
int16 view_turnoff_x; // road turnoff data
int16 view_turnoff_dx; // road turnoff delta factor
// drawing area
int16 viewport_cx; // x-center of viewport window
int16 viewport_cy; // y-center of render window
int16 viewport_left; // x-left of viewport
int16 viewport_right; // x-right of viewport
int16 viewport_top; // y-top of viewport
int16 viewport_bottom; // y-bottom of viewport
// sprite structure
int16 sprite_x; // projected x-pos of sprite
int16 sprite_y; // projected y-pos of sprite
int16 sprite_attr; // obj attributes
bool8 sprite_size; // sprite size: 8x8 or 16x16
int16 sprite_clipy; // visible line to clip pixels off
int16 sprite_count;
// generic projection variables designed for two solid polygons + two polygon sides
int16 poly_clipLf[2][2]; // left clip boundary
int16 poly_clipRt[2][2]; // right clip boundary
int16 poly_ptr[2][2]; // HDMA structure pointers
int16 poly_raster[2][2]; // current raster line below horizon
int16 poly_top[2][2]; // top clip boundary
int16 poly_bottom[2][2]; // bottom clip boundary
int16 poly_cx[2][2]; // center for left/right points
int16 poly_start[2]; // current projection points
int16 poly_plane[2]; // previous z-plane distance
// OAM
int16 OAM_attr[16]; // OAM (size, MSB) data
int16 OAM_index; // index into OAM table
int16 OAM_bits; // offset into OAM table
int16 OAM_RowMax; // maximum number of tiles per 8 aligned pixels (row)
int16 OAM_Row[32]; // current number of tiles per row
};
extern struct SDSP0 DSP0;
extern struct SDSP1 DSP1;
extern struct SDSP2 DSP2;
extern struct SDSP3 DSP3;
extern struct SDSP4 DSP4;
uint8 S9xGetDSP (uint16);
void S9xSetDSP (uint8, uint16);
void S9xResetDSP (void);
uint8 DSP1GetByte (uint16);
void DSP1SetByte (uint8, uint16);
uint8 DSP2GetByte (uint16);
void DSP2SetByte (uint8, uint16);
uint8 DSP3GetByte (uint16);
void DSP3SetByte (uint8, uint16);
uint8 DSP4GetByte (uint16);
void DSP4SetByte (uint8, uint16);
void DSP3_Reset (void);
extern uint8 (*GetDSP) (uint16);
extern void (*SetDSP) (uint8, uint16);
#endif