#ifndef GSP_H
#define GSP_H

#include "Types.h"
#include "GBI.h"
#include "gDP.h"

#define CHANGED_VIEWPORT		0x01
#define CHANGED_MATRIX			0x02
#define CHANGED_COLORBUFFER		0x04
#define CHANGED_GEOMETRYMODE	0x08
#define CHANGED_TEXTURE			0x10
#define CHANGED_FOGPOSITION		0x10
#define CHANGED_FB_TEXTURE		0x20
#define CHANGED_CPU_FB_WRITE	0x40

struct SPVertex
{
	f32		x, y, z, w;
	f32		nx, ny, nz;
	f32		r, g, b, a;
	f32		s, t;
	f32		xClip, yClip, zClip;
	s16		flag;
	u8 HWLight;
	u8 st_scaled;
};

typedef SPVertex SPTriangle[3];

struct gSPInfo
{
	u32 segment[16];

	struct
	{
		u32 modelViewi, stackSize, billboard;
		f32 modelView[32][4][4];
		f32 projection[4][4];
		f32 combined[4][4];
	} matrix;

	struct
	{
		f32 A, B, C, D;
		f32 X, Y;
		f32 baseScaleX, baseScaleY;
	} objMatrix;

	SPVertex vertices[80];

	u32 vertexColorBase;
	u32 vertexi;

	struct
	{
		f32	r, g, b;
		f32	x, y, z;
	} lights[8];

	struct
	{
		f32 scales, scalet;
		s32 level, on, tile;
    } texture;

	gDPTile *textureTile[2];

	struct
	{
		f32 vscale[4];
		f32 vtrans[4];
		f32 x, y, width, height;
		f32 nearz, farz;
	} viewport;

	struct
	{
		s16 multiplier, offset;
	} fog;

	struct
	{
		u32 address, width, height, format, size, palette;
		f32 imageX, imageY, scaleW, scaleH;
	} bgImage;

	u32 geometryMode;
	s32 numLights;

	u32 changed;

	u32 status[4];

	struct
	{
		u32 vtx, mtx;
	} DMAOffsets;
};

extern gSPInfo gSP;

void gSPLoadUcodeEx( u32 uc_start, u32 uc_dstart, u16 uc_dsize );
void gSPNoOp();
void gSPMatrix( u32 matrix, u8 param );
void gSPDMAMatrix( u32 matrix, u8 index, u8 multiply );
void gSPViewport( u32 v );
void gSPForceMatrix( u32 mptr );
void gSPLight( u32 l, s32 n );
void gSPLookAt( u32 l );
void gSPVertex( u32 v, u32 n, u32 v0 );
void gSPCIVertex( u32 v, u32 n, u32 v0 );
void gSPDMAVertex( u32 v, u32 n, u32 v0 );
void gSPDisplayList( u32 dl );
void gSPDMADisplayList( u32 dl, u32 n );
void gSPBranchList( u32 dl );
void gSPBranchLessZ( u32 branchdl, u32 vtx, f32 zval );
void gSPSprite2DBase( u32 base );
void gSP1Triangle( s32 v0, s32 v1, s32 v2, s32 flag );
void gSP2Triangles( s32 v00, s32 v01, s32 v02, s32 flag0, 
				    s32 v10, s32 v11, s32 v12, s32 flag1 );
void gSP4Triangles( s32 v00, s32 v01, s32 v02,
				    s32 v10, s32 v11, s32 v12,
					s32 v20, s32 v21, s32 v22,
					s32 v30, s32 v31, s32 v32 );
void gSPDMATriangles( u32 tris, u32 n );
void gSP1Quadrangle( s32 v0, s32 v1, s32 v2, s32 v4 );
void gSPCullDisplayList( u32 v0, u32 vn );
void gSPPopMatrix( u32 param );
void gSPPopMatrixN( u32 param, u32 num );
void gSPSegment( s32 seg, s32 base );
void gSPClipRatio( u32 r );
void gSPInsertMatrix( u32 where, u32 num );
void gSPModifyVertex( u32 vtx, u32 where, u32 val );
void gSPNumLights( s32 n );
void gSPLightColor( u32 lightNum, u32 packedColor );
void gSPFogFactor( s16 fm, s16 fo );
void gSPPerspNormalize( u16 scale );
void gSPTexture( f32 sc, f32 tc, s32 level, s32 tile, s32 on );
void gSPEndDisplayList();
void gSPGeometryMode( u32 clear, u32 set );
void gSPSetGeometryMode( u32 mode );
void gSPClearGeometryMode( u32 mode );
void gSPLine3D( s32 v0, s32 v1, s32 flag );
void gSPLineW3D( s32 v0, s32 v1, s32 wd, s32 flag );
void gSPObjRectangle( u32 sp );
void gSPObjSprite( u32 sp );
void gSPObjLoadTxtr( u32 tx );
void gSPObjLoadTxSprite( u32 txsp );
void gSPObjLoadTxRectR( u32 txsp );
void gSPBgRect1Cyc( u32 bg );
void gSPBgRectCopy( u32 bg );
void gSPObjMatrix( u32 mtx );
void gSPObjSubMatrix( u32 mtx );
void gSPSetDMAOffsets( u32 mtxoffset, u32 vtxoffset );
void gSPSetVertexColorBase( u32 base );
#endif