gs_glue.h

#pragma once

#include <tamtypes.h>

typedef struct
{
	u8 type;
	u32 size;
	u8* data;
} gs_transfer_packet;

typedef struct
{
	union
	{
		struct
		{
			u64 PMODE;
			u64 _pad1;
			u64 SMODE1;
			u64 _pad2;
			u64 SMODE2;
			u64 _pad3;
			u64 SRFSH;
			u64 _pad4;
			u64 SYNCH1;
			u64 _pad5;
			u64 SYNCH2;
			u64 _pad6;
			u64 SYNCV;
			u64 _pad7;
			struct
			{
				u64 DISPFB;
				u64 _pad1;
				u64 DISPLAY;
				u64 _pad2;
			} DISP[2];
			u64 EXTBUF;
			u64 _pad8;
			u64 EXTDATA;
			u64 _pad9;
			u64 EXTWRITE;
			u64 _pad10;
			u64 BGCOLOR;
			u64 _pad11;
		};

		u8 _pad12[0x1000];
	};

	union
	{
		struct
		{
			u64 CSR;
			u64 _pad13;
			u64 IMR;
			u64 _pad14;
			u64 _unk1[4];
			u64 BUSDIR;
			u64 _pad15;
			u64 _unk2[6];
			u64 SIGLBLID;
			u64 _pad16;
		};

		u8 _pad17[0x1000];
	};
} gs_registers_packet;

typedef struct
{
	unsigned char Circuit;
	unsigned char PSM;
	u32 Width;
	u32 Height;
	u32 Bytes;
} gs_vsync_data_header;

extern u8* gs_glue_transfer_data;

void gs_glue_init();
void gs_glue_transfer(u8* packet, u32 size);
// Returns 1 or 2 or 3
// Bit 0 -> Circuit 1 data available
// Bit 1 -> Circuit 2 data available
int gs_glue_vsync(gs_vsync_data_header* circuit1_header, u32* circuit1_ptr, gs_vsync_data_header* circuit2_header, u32* circuit2_ptr);
u128* gs_glue_read_fifo(u32 size);
void gs_glue_registers(gs_registers_packet* packet);
void gs_glue_freeze(u8* data, u32 version);