#include "GLideN64.h"
#include "3DMath.h"
#include "F3D.h"
#include "F3DEX.h"
#include "F3DEX2.h"
#include "F3DFLX2.h"
#include "RSP.h"
#include "gSP.h"
#include "DebugDump.h"

inline
void F3DFLX2_LoadAlphaLight(u32 _a)
{
	const u32 address = RSP_SegmentToPhysical(_a);

	const s16* const data = reinterpret_cast<const s16*>(RDRAM + address);

//	gSP.lookat.xyz[0][X] = static_cast<f32>(data[4 ^ 1]);
//	gSP.lookat.xyz[0][Y] = static_cast<f32>(data[5 ^ 1]);
//	gSP.lookat.xyz[0][Z] = static_cast<f32>(data[6 ^ 1]);
	gSP.lookat.xyz[0][X] = _FIXED2FLOAT(data[4 ^ 1], 8);
	gSP.lookat.xyz[0][Y] = _FIXED2FLOAT(data[5 ^ 1], 8);
	gSP.lookat.xyz[0][Z] = _FIXED2FLOAT(data[6 ^ 1], 8);

	gSP.lookatEnable = true;

	Normalize(gSP.lookat.xyz[0]);
	gSP.changed |= CHANGED_LOOKAT;
	DebugMsg(DEBUG_NORMAL, "F3DFLX2_LoadAlphaLight( 0x%08X );\n", _a);
}

static
void F3DFLX2_MoveMem(u32 w0, u32 w1)
{
	switch (_SHIFTR(w0, 0, 8))
	{
	case G_MV_LIGHT:
	{
		const u32 offset = (w0 >> 5) & 0x7F8;
		const u32 n = offset / 24;
		if (n == 1)
			F3DFLX2_LoadAlphaLight(w1);
		else
			gSPLight(w1, n - 1);
	}
		break;
	default:
		F3DEX2_MoveMem(w0, w1);
		break;
	}
}


void F3DFLX2_Init()
{
	gSPSetupFunctions();
	// Set GeometryMode flags
	GBI_InitFlags( F3DEX2 );

	GBI.PCStackSize = 18;

	// GBI Command						Command Value				Command Function
	GBI_SetGBI( G_RDPHALF_2,			F3DEX2_RDPHALF_2,			F3D_RDPHalf_2 );
	GBI_SetGBI( G_SETOTHERMODE_H,		F3DEX2_SETOTHERMODE_H,		F3DEX2_SetOtherMode_H );
	GBI_SetGBI( G_SETOTHERMODE_L,		F3DEX2_SETOTHERMODE_L,		F3DEX2_SetOtherMode_L );
	GBI_SetGBI( G_RDPHALF_1,			F3DEX2_RDPHALF_1,			F3D_RDPHalf_1 );
	GBI_SetGBI( G_SPNOOP,				F3DEX2_SPNOOP,				F3D_SPNoOp );
	GBI_SetGBI( G_ENDDL,				F3DEX2_ENDDL,				F3D_EndDL );
	GBI_SetGBI( G_DL,					F3DEX2_DL,					F3D_DList );
	GBI_SetGBI( G_LOAD_UCODE,			F3DEX2_LOAD_UCODE,			F3DEX_Load_uCode );
	GBI_SetGBI( G_MOVEMEM,				F3DEX2_MOVEMEM,				F3DFLX2_MoveMem );
	GBI_SetGBI( G_MOVEWORD,				F3DEX2_MOVEWORD,			F3DEX2_MoveWord );
	GBI_SetGBI( G_MTX,					F3DEX2_MTX,					F3DEX2_Mtx );
	GBI_SetGBI( G_GEOMETRYMODE,			F3DEX2_GEOMETRYMODE,		F3DEX2_GeometryMode );
	GBI_SetGBI( G_POPMTX,				F3DEX2_POPMTX,				F3DEX2_PopMtx );
	GBI_SetGBI( G_TEXTURE,				F3DEX2_TEXTURE,				F3DEX2_Texture );
	GBI_SetGBI( G_DMA_IO,				F3DEX2_DMA_IO,				F3DEX2_DMAIO );
	GBI_SetGBI( G_SPECIAL_1,			F3DEX2_SPECIAL_1,			F3DEX2_Special_1 );
	GBI_SetGBI( G_SPECIAL_2,			F3DEX2_SPECIAL_2,			F3DEX2_Special_2 );
	GBI_SetGBI( G_SPECIAL_3,			F3DEX2_SPECIAL_3,			F3DEX2_Special_3 );

	GBI_SetGBI( G_VTX,					F3DEX2_VTX,					F3DEX2_Vtx );
	GBI_SetGBI( G_MODIFYVTX,			F3DEX2_MODIFYVTX,			F3DEX_ModifyVtx );
	GBI_SetGBI(	G_CULLDL,				F3DEX2_CULLDL,				F3DEX_CullDL );
	GBI_SetGBI( G_BRANCH_Z,				F3DEX2_BRANCH_Z,			F3DEX_Branch_Z );
	GBI_SetGBI( G_TRI1,					F3DEX2_TRI1,				F3DEX2_Tri1 );
	GBI_SetGBI( G_TRI2,					F3DEX2_TRI2,				F3DEX_Tri2 );
	GBI_SetGBI( G_QUAD,					F3DEX2_QUAD,				F3DEX2_Quad );
	GBI_SetGBI( G_LINE3D,				F3DEX2_LINE3D,				F3DEX2_Line3D );
}