#include "rwcore.h"

#ifndef RW_DFF_H
#define RW_DFF_H

#ifdef __cplusplus
extern "C" {
#endif

enum {
	rwID_MORPH           = 0x105,
	rwID_SKYMIPMAP       = 0x110,
	rwID_SKIN            = 0x116,
	rwID_PARTICLES       = 0x118,
	rwID_HANIM           = 0x11E,
	rwID_MATERIALEFFECTS = 0x120,
	rwID_ADCPLG          = 0x134,
	rwID_BINMESH         = 0x50E,
	rwID_NATIVEDATA      = 0x510,

	rwID_SPECULARMAT      = 0x253F2F6,
	rwID_NIGHTVERTEXCOLOR = 0x253F2F9,
	rwID_COLLISIONMODEL   = 0x253F2FA,
	rwID_REFLECTIONMAT    = 0x253F2FC,
	rwID_MESHEXTENSION    = 0x253F2FD,
	rwID_FRAME            = 0x253F2FE,
};

enum {
	rpGEOMETRYTRISTRIP   = 0x01,
	rpGEOMETRYPOSITIONS  = 0x02,
	rpGEOMETRYTEXTURED   = 0x04,
	rpGEOMETRYPRELIT     = 0x08,
	rpGEOMETRYNORMALS    = 0x10,
	rpGEOMETRYLIGHT      = 0x20,
	rpGEOMETRYMODULATEMATERIALCOLOR  = 0x40,
	rpGEOMETRYTEXTURED2  = 0x80,
};

enum {
	GTA3_1 = 0x00000302,
	GTA3_2 = 0x00000304,
	GTA3_3 = 0x00000310,
	GTA3_4 = 0x0800FFFF,
	VCPS2  = 0x0C02FFFF,
	SA     = 0x1803FFFF
};

#define VCNORMSCALE (RwReal) 1/128
#define SAVERTSCALE1 (RwReal) 1/128 /* normally used */
#define SAVERTSCALE2 (RwReal) 1/1024 /* used by cars and peds */
#define SAUVSCALE   (RwReal) 1/4096
#define SANORMSCALE (RwReal) 1/128

typedef RwUInt8 Color4b[4];
typedef RwUInt16 Face4i[4];
typedef RwReal Vector2f[2];
typedef RwReal Vector3f[3];
typedef RwReal Vector4f[4];

typedef struct RpAtomic RpAtomic;
struct RpAtomic {
	RwInt32 FrmIndex;
	RwInt32 GeoIndex;
	RwInt32 Unknown0;
	RwInt32 Unknown1;
};

typedef struct RpMesh RpMesh;
struct RpMesh {
	RwUInt32 numIndices;
	RwUInt32 MatIndex;

	RwUInt32 *Indices;
};

typedef struct RpMaterial RpMaterial;
struct RpMaterial {
	RwInt32 Flags;
	Color4b Color;
	RwInt32 Unused;
	RwBool HasTex;
	RwReal SurfaceProps[3];


	RwBool TexRead;
	RwTexture Tex;

	RwBool HasRef;
	RwTexture Reflection;

	/* San Andreas only */
	RwReal RefImageAmount[4];
	RwReal RefIntensity;

	RwReal SpecLevel;
	RwChar *SpecName;
};

typedef struct RpGeometry RpGeometry;
struct RpGeometry {
	RwUInt16 Flags;
	RwUInt8 numUVs;
	RwUInt8 isPs2;
	RwUInt32 numTriangles;
	RwUInt32 numVertices;
	RwUInt32 numMorphTargets;

	Color4b *VColor;
	Color4b *NightVColor;
	Vector2f *UV;
	Vector2f *UV2;
	Face4i *Face;
	Vector3f *Vertex;
	Vector3f *Normal;

	/* Bounding shpere */
	RwSphere BoundingSphere;
	RwInt32 BsPos;
	RwInt32 BsNor;

	RwUInt32 numMaterials;
	RpMaterial *Mat;

	RwUInt32 FaceType;
	RwUInt32 numSplits;
	RwUInt32 numIndices;
	RpMesh *Split;
};

typedef struct RwFrame RwFrame;
struct RwFrame {
	Vector3f Rotation[3];
	Vector3f Position;
	RwInt32 Parent;
	RwInt32 Unknown;

	RwChar *Name;
};

typedef struct RpClump RpClump;
struct RpClump {
	RwInt32 numAtomics;
	RpAtomic *Atm;

	RwInt32 numFrames;
	RwFrame *Frm;

	RwInt32 numGeometries;
	RpGeometry *Geo;

	/* Not used */
	RwInt32 numLights;
	RwInt32 numCameras;
};


struct ps2split {
	RwUInt32 vertexc;

	RwUInt8 **vc;
//	RwUInt8 **nvc;
	RwReal **uv;
	RwReal **uv2;
	RwReal **vertices;
	RwReal **normals;

	RwUInt16 *flags;
	RwUInt32 extraverts;
	RwInt32 hasNVC;
};

void ParseChunk(RpClump &, RwChunkHeaderInfo *, RwUInt32, RwStream *);
void ReadChunk(RpClump &, RwChunkHeaderInfo *, RwStream *);
void ReadStruct(RpClump &, RwChunkHeaderInfo *, RwUInt32, RwStream *);
void ReadFrame(RwFrame &, RwUInt32, RwStream *);
void ReadMatfx(RpClump &, RwChunkHeaderInfo *, RwUInt32, RwStream *);
void ReadNativeDataVcPs2(RpGeometry &, RwStream *);
void ReadNativeDataSaPs2(RpGeometry &, RwStream *);
RwBool  IsSaCompression(RpGeometry &, RwStream *);
void MakeNormals(RpGeometry &, RpMesh &);
void CalcNormal(Vector3f *, Vector3f *, Vector3f *, Vector3f *);
void Ps2ToPc(RpGeometry *, struct ps2split *);
RwBool  IsSameVert(RwReal *, RwReal *);
RwReal GetSaVertScale(RpGeometry *);
RpClump *RpClumpStreamRead(RwStream *);
RpClump *RpClumpCreate(void);
void RpClumpDestroy(RpClump *);
RwUInt32 RpClumpGetNumAtomics(RpClump *);

#ifdef __cplusplus
}
#endif

#endif