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#include "../copyright"
#ifndef _PPU_H_
#define _PPU_H_
#define FIRST_VISIBLE_LINE 1
extern uint8_t GetBank;
extern uint16_t SignExtend [2];
#define TILE_2BIT 0
#define TILE_4BIT 1
#define TILE_8BIT 2
#define MAX_2BIT_TILES 4096
#define MAX_4BIT_TILES 2048
#define MAX_8BIT_TILES 1024
#define PPU_H_BEAM_IRQ_SOURCE (1 << 0)
#define PPU_V_BEAM_IRQ_SOURCE (1 << 1)
#define GSU_IRQ_SOURCE (1 << 2)
#define SA1_IRQ_SOURCE (1 << 7)
#define SA1_DMA_IRQ_SOURCE (1 << 5)
struct ClipData
{
uint32_t Count [6];
uint32_t Left [6][6];
uint32_t Right [6][6];
};
typedef struct
{
bool ColorsChanged;
uint8_t HDMA;
bool HDMAStarted;
uint8_t MaxBrightness;
bool LatchedBlanking;
bool OBJChanged;
bool RenderThisFrame;
bool DirectColourMapsNeedRebuild;
uint32_t FrameCount;
uint32_t RenderedFramesCount;
uint32_t DisplayedRenderedFrameCount;
uint32_t SkippedFrames;
uint32_t FrameSkip;
uint8_t* TileCache [3];
uint8_t* TileCached [3];
#ifdef CORRECT_VRAM_READS
uint16_t VRAMReadBuffer;
#else
bool FirstVRAMRead;
#endif
bool DoubleHeightPixels;
bool Interlace;
bool InterlaceSprites;
bool DoubleWidthPixels;
bool HalfWidthPixels;
int32_t RenderedScreenHeight;
int32_t RenderedScreenWidth;
uint32_t Red [256];
uint32_t Green [256];
uint32_t Blue [256];
uint8_t* XB;
uint16_t ScreenColors [256];
int32_t PreviousLine;
int32_t CurrentLine;
int32_t Controller;
uint32_t Joypads[5];
uint32_t SuperScope;
uint32_t Mouse[2];
int32_t PrevMouseX[2];
int32_t PrevMouseY[2];
struct ClipData Clip [2];
} InternalPPU;
struct SOBJ
{
int16_t HPos;
uint16_t VPos;
uint16_t Name;
uint8_t VFlip;
uint8_t HFlip;
uint8_t Priority;
uint8_t Palette;
uint8_t Size;
};
typedef struct
{
uint8_t BGMode;
uint8_t BG3Priority;
uint8_t Brightness;
struct
{
bool High;
uint8_t Increment;
uint16_t Address;
uint16_t Mask1;
uint16_t FullGraphicCount;
uint16_t Shift;
} VMA;
struct
{
uint16_t SCBase;
uint16_t VOffset;
uint16_t HOffset;
uint8_t BGSize;
uint16_t NameBase;
uint16_t SCSize;
} BG [4];
bool CGFLIP;
uint16_t CGDATA [256];
uint8_t FirstSprite;
uint8_t LastSprite;
struct SOBJ OBJ [128];
uint8_t OAMPriorityRotation;
uint16_t OAMAddr;
uint8_t RangeTimeOver;
uint8_t OAMFlip;
uint16_t OAMTileAddress;
uint16_t IRQVBeamPos;
uint16_t IRQHBeamPos;
uint16_t VBeamPosLatched;
uint16_t HBeamPosLatched;
uint8_t HBeamFlip;
uint8_t VBeamFlip;
uint8_t HVBeamCounterLatched;
int16_t MatrixA;
int16_t MatrixB;
int16_t MatrixC;
int16_t MatrixD;
int16_t CentreX;
int16_t CentreY;
uint8_t Joypad1ButtonReadPos;
uint8_t Joypad2ButtonReadPos;
uint8_t CGADD;
uint8_t FixedColourRed;
uint8_t FixedColourGreen;
uint8_t FixedColourBlue;
uint16_t SavedOAMAddr;
uint16_t ScreenHeight;
uint32_t WRAM;
uint8_t BG_Forced;
bool ForcedBlanking;
bool OBJThroughMain;
bool OBJThroughSub;
uint8_t OBJSizeSelect;
uint16_t OBJNameBase;
bool OBJAddition;
uint8_t OAMReadFlip;
uint8_t OAMData [512 + 32];
bool VTimerEnabled;
bool HTimerEnabled;
int16_t HTimerPosition;
uint8_t Mosaic;
bool BGMosaic [4];
bool Mode7HFlip;
bool Mode7VFlip;
uint8_t Mode7Repeat;
uint8_t Window1Left;
uint8_t Window1Right;
uint8_t Window2Left;
uint8_t Window2Right;
uint8_t ClipCounts [6];
uint8_t ClipWindowOverlapLogic [6];
uint8_t ClipWindow1Enable [6];
uint8_t ClipWindow2Enable [6];
bool ClipWindow1Inside [6];
bool ClipWindow2Inside [6];
bool RecomputeClipWindows;
uint8_t CGFLIPRead;
uint16_t OBJNameSelect;
bool Need16x8Mulitply;
uint8_t Joypad3ButtonReadPos;
uint8_t MouseSpeed[2];
// XXX Do these need to be added to snapshot.cpp?
uint16_t OAMWriteRegister;
uint8_t BGnxOFSbyte;
uint8_t OpenBus1;
uint8_t OpenBus2;
} SPPU;
#define CLIP_OR 0
#define CLIP_AND 1
#define CLIP_XOR 2
#define CLIP_XNOR 3
typedef struct
{
bool TransferDirection;
bool AAddressFixed;
bool AAddressDecrement;
uint8_t TransferMode;
uint8_t ABank;
uint16_t AAddress;
uint16_t Address;
uint8_t BAddress;
// General DMA only:
uint16_t TransferBytes;
// H-DMA only:
bool HDMAIndirectAddressing;
uint16_t IndirectAddress;
uint8_t IndirectBank;
uint8_t Repeat;
uint8_t LineCount;
uint8_t FirstLine;
} SDMA;
void S9xUpdateScreen();
void S9xResetPPU();
void S9xSoftResetPPU();
void S9xFixColourBrightness();
void S9xUpdateJoypads();
void S9xProcessMouse(int32_t which1);
void S9xSuperFXExec();
void S9xSetPPU(uint8_t Byte, uint16_t Address);
uint8_t S9xGetPPU(uint16_t Address);
void S9xSetCPU(uint8_t Byte, uint16_t Address);
uint8_t S9xGetCPU(uint16_t Address);
void S9xInitC4();
void S9xSetC4(uint8_t Byte, uint16_t Address);
uint8_t S9xGetC4(uint16_t Address);
void S9xSetC4RAM(uint8_t Byte, uint16_t Address);
uint8_t S9xGetC4RAM(uint16_t Address);
extern SPPU PPU;
extern SDMA DMA [8];
extern InternalPPU IPPU;
#include "memmap.h"
typedef struct
{
uint8_t _5C77;
uint8_t _5C78;
uint8_t _5A22;
} SnesModel;
extern SnesModel* Model;
extern SnesModel M1SNES;
extern SnesModel M2SNES;
#define MAX_5C77_VERSION 0x01
#define MAX_5C78_VERSION 0x03
#define MAX_5A22_VERSION 0x02
extern uint8_t REGISTER_4212();
extern void FLUSH_REDRAW();
extern void REGISTER_2104(uint8_t byte);
extern void REGISTER_2118(uint8_t Byte);
extern void REGISTER_2118_tile(uint8_t Byte);
extern void REGISTER_2118_linear(uint8_t Byte);
extern void REGISTER_2119(uint8_t Byte);
extern void REGISTER_2119_tile(uint8_t Byte);
extern void REGISTER_2119_linear(uint8_t Byte);
extern void REGISTER_2122(uint8_t Byte);
extern void REGISTER_2180(uint8_t Byte);
//Platform specific input functions used by PPU.CPP
void JustifierButtons(uint32_t*);
bool JustifierOffscreen();
#endif
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