// Copyright (C) 2007 Id Software, Inc.
//

#ifndef __MATH_SIMD_H__
#define __MATH_SIMD_H__

/*
===============================================================================

	Single Instruction Multiple Data (SIMD)

	For optimal use data should be aligned on a 16 byte boundary.
	All idSIMDProcessor routines are thread safe.

===============================================================================
*/

class idSIMD {
public:
	static void			Init( void );
	static void			InitProcessor( const char *module, bool forceGeneric );
	static void			Shutdown( void );
	static void			Test_f( const class idCmdArgs &args );
};


/*
===============================================================================

	virtual base class for different SIMD processors

===============================================================================
*/

#ifdef _WIN32
#define VPCALL __fastcall
#else
#define VPCALL
#endif

class idVec2;
class idVec3;
class idVec4;
class idVec5;
class idVec6;
class idVecX;
class idMat2;
class idMat3;
class idMat4;
class idMat5;
class idMat6;
class idMatX;
class idPlane;
class idDrawVert;
class idJointQuat;
class idCompressedJointQuat;
class idJointMat;
struct jointWeight_t;
#if SD_SUPPORT_UNSMOOTHEDTANGENTS
struct dominantTri_s;
#endif // SD_SUPPORT_UNSMOOTHEDTANGENTS
struct silEdge_t;

const int NUM_LIGHT_PLANES = 6;

const int MIXBUFFER_SAMPLES = 4096;

enum speakerLabel_t {
	SPEAKER_LEFT = 0,
	SPEAKER_RIGHT,
	SPEAKER_CENTER,
	SPEAKER_LFE,
	SPEAKER_BACKLEFT,
	SPEAKER_BACKRIGHT,
	SPEAKER_SIDELEFT,
	SPEAKER_SIDERIGHT
};

class idSIMDProcessor {
public:
									idSIMDProcessor( void ) { cpuid = CPUID_NONE; }

									virtual ~idSIMDProcessor() {};

	cpuid_t							cpuid;

	virtual const char * VPCALL		GetName( void ) const = 0;

	virtual void VPCALL Add( float *dst,			const float constant,	const float *src,		const int count ) = 0;
	virtual void VPCALL Add( float *dst,			const float *src0,		const float *src1,		const int count ) = 0;
	virtual void VPCALL Sub( float *dst,			const float constant,	const float *src,		const int count ) = 0;
	virtual void VPCALL Sub( float *dst,			const float *src0,		const float *src1,		const int count ) = 0;
	virtual void VPCALL Mul( float *dst,			const float constant,	const float *src,		const int count ) = 0;
	virtual void VPCALL Mul( float *dst,			const float *src0,		const float *src1,		const int count ) = 0;
	virtual void VPCALL Div( float *dst,			const float constant,	const float *src,		const int count ) = 0;
	virtual void VPCALL Div( float *dst,			const float *src0,		const float *src1,		const int count ) = 0;
	virtual void VPCALL MulAdd( float *dst,			const float constant,	const float *src,		const int count ) = 0;
	virtual void VPCALL MulAdd( float *dst,			const float *src0,		const float *src1,		const int count ) = 0;
	virtual void VPCALL MulSub( float *dst,			const float constant,	const float *src,		const int count ) = 0;
	virtual void VPCALL MulSub( float *dst,			const float *src0,		const float *src1,		const int count ) = 0;

	virtual	void VPCALL Dot( float *dst,			const idVec3 &constant,	const idVec3 *src,		const int count ) = 0;
	virtual	void VPCALL Dot( float *dst,			const idVec3 &constant,	const idPlane *src,		const int count ) = 0;
	virtual void VPCALL Dot( float *dst,			const idVec3 &constant,	const idDrawVert *src,	const int count ) = 0;
	virtual	void VPCALL Dot( float *dst,			const idPlane &constant,const idVec3 *src,		const int count ) = 0;
	virtual	void VPCALL Dot( float *dst,			const idPlane &constant,const idPlane *src,		const int count ) = 0;
	virtual void VPCALL Dot( float *dst,			const idPlane &constant,const idDrawVert *src,	const int count ) = 0;
	virtual	void VPCALL Dot( float *dst,			const idVec3 *src0,		const idVec3 *src1,		const int count ) = 0;
	virtual void VPCALL Dot( float &dot,			const float *src1,		const float *src2,		const int count ) = 0;

	virtual	void VPCALL CmpGT( byte *dst,			const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL CmpGT( byte *dst,			const byte bitNum,		const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL CmpGE( byte *dst,			const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL CmpGE( byte *dst,			const byte bitNum,		const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL CmpLT( byte *dst,			const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL SetCmpLT( byte *dst,			const byte bitNum,		const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL CmpLT( byte *dst,			const byte bitNum,		const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL CmpLE( byte *dst,			const float *src0,		const float constant,	const int count ) = 0;
	virtual	void VPCALL CmpLE( byte *dst,			const byte bitNum,		const float *src0,		const float constant,	const int count ) = 0;

	virtual	void VPCALL MinMax( float &min,			float &max,				const float *src,		const int count ) = 0;
	virtual	void VPCALL MinMax( idVec2 &min,		idVec2 &max,			const idVec2 *src,		const int count ) = 0;
	virtual	void VPCALL MinMax( idVec3 &min,		idVec3 &max,			const idVec3 *src,		const int count ) = 0;
	virtual	void VPCALL MinMax( idVec3 &min,		idVec3 &max,			const idDrawVert *src,	const int count ) = 0;
	virtual	void VPCALL MinMax( idVec3 &min,		idVec3 &max,			const idDrawVert *src,	const vertIndex_t *indexes,		const int count ) = 0;
	virtual	void VPCALL MinMax( idVec3 &min,		idVec3 &max,			const struct shadowCache_s *src,	const int count ) = 0;

	virtual	void VPCALL Clamp( float *dst,			const float *src,		const float min,		const float max,		const int count ) = 0;
	virtual	void VPCALL ClampMin( float *dst,		const float *src,		const float min,		const int count ) = 0;
	virtual	void VPCALL ClampMax( float *dst,		const float *src,		const float max,		const int count ) = 0;

	virtual void VPCALL Memcpy( void *dst,			const void *src,		const int count ) = 0;
	virtual void VPCALL Memset( void *dst,			const int val,			const int count ) = 0;

	// these assume 16 byte aligned and 16 byte padded memory
	virtual void VPCALL Zero16( float *dst,			const int count ) = 0;
	virtual void VPCALL Negate16( float *dst,		const int count ) = 0;
	virtual void VPCALL Copy16( float *dst,			const float *src,		const int count ) = 0;
	virtual void VPCALL Add16( float *dst,			const float *src1,		const float *src2,		const int count ) = 0;
	virtual void VPCALL Sub16( float *dst,			const float *src1,		const float *src2,		const int count ) = 0;
	virtual void VPCALL Mul16( float *dst,			const float *src1,		const float constant,	const int count ) = 0;
	virtual void VPCALL AddAssign16( float *dst,	const float *src,		const int count ) = 0;
	virtual void VPCALL SubAssign16( float *dst,	const float *src,		const int count ) = 0;
	virtual void VPCALL MulAssign16( float *dst,	const float constant,	const int count ) = 0;

	// idMatX operations
	virtual void VPCALL MatX_MultiplyVecX( idVecX &dst, const idMatX &mat, const idVecX &vec ) = 0;
	virtual void VPCALL MatX_MultiplyAddVecX( idVecX &dst, const idMatX &mat, const idVecX &vec ) = 0;
	virtual void VPCALL MatX_MultiplySubVecX( idVecX &dst, const idMatX &mat, const idVecX &vec ) = 0;
	virtual void VPCALL MatX_TransposeMultiplyVecX( idVecX &dst, const idMatX &mat, const idVecX &vec ) = 0;
	virtual void VPCALL MatX_TransposeMultiplyAddVecX( idVecX &dst, const idMatX &mat, const idVecX &vec ) = 0;
	virtual void VPCALL MatX_TransposeMultiplySubVecX( idVecX &dst, const idMatX &mat, const idVecX &vec ) = 0;
	virtual void VPCALL MatX_MultiplyMatX( idMatX &dst, const idMatX &m1, const idMatX &m2 ) = 0;
	virtual void VPCALL MatX_TransposeMultiplyMatX( idMatX &dst, const idMatX &m1, const idMatX &m2 ) = 0;
	virtual void VPCALL MatX_LowerTriangularSolve( const idMatX &L, float *x, const float *b, const int n, int skip = 0 ) = 0;
	virtual void VPCALL MatX_LowerTriangularSolveTranspose( const idMatX &L, float *x, const float *b, const int n ) = 0;
	virtual void VPCALL MatX_UpperTriangularSolve( const idMatX &U, float *x, const float *b, const int n ) = 0;
	virtual void VPCALL MatX_UpperTriangularSolveTranspose( const idMatX &U, float *x, const float *b, const int n ) = 0;
	virtual bool VPCALL MatX_LU_Factor( idMatX &mat, idVecX &invDiag, const int n ) = 0;
	virtual bool VPCALL MatX_LDLT_Factor( idMatX &mat, idVecX &invDiag, const int n ) = 0;

	// rendering
	virtual void VPCALL DecompressJoints( idJointQuat *joints, const idCompressedJointQuat *compressedJoints, const int *index, const int numJoints ) = 0;
	virtual void VPCALL BlendJoints( idJointQuat *joints, const idJointQuat *blendJoints, const float lerp, const int *index, const int numJoints ) = 0;
	virtual void VPCALL BlendJointsFast( idJointQuat *joints, const idJointQuat *blendJoints, const float lerp, const int *index, const int numJoints ) = 0;
	virtual void VPCALL ConvertJointQuatsToJointMats( idJointMat *jointMats, const idJointQuat *jointQuats, const int numJoints ) = 0;
	virtual void VPCALL ConvertJointMatsToJointQuats( idJointQuat *jointQuats, const idJointMat *jointMats, const int numJoints ) = 0;
	virtual void VPCALL TransformJoints( idJointMat *jointMats, const int *parents, const int firstJoint, const int lastJoint ) = 0;
	virtual void VPCALL UntransformJoints( idJointMat *jointMats, const int *parents, const int firstJoint, const int lastJoint ) = 0;
	virtual void VPCALL MultiplyJoints( idJointMat *result, const idJointMat *joints1, const idJointMat *joints2, const int numJoints ) = 0;
	virtual void VPCALL TransformVerts( idDrawVert *verts, const int numVerts, const idJointMat *joints, const idVec4 *base, const jointWeight_t *weights, const int numWeights ) = 0;
	virtual void VPCALL TransformShadowVerts( idDrawVert *verts, const int numVerts, const idJointMat *joints, const idDrawVert *base, const jointWeight_t *weights, const int numWeights ) = 0;
	virtual void VPCALL TransformShadowVerts( idDrawVert *verts, const int numVerts, const idJointMat *joints, const idDrawVert *base, const short *weights, const int numWeights ) = 0;
	virtual void VPCALL TransformShadowVerts( struct shadowCache_s *verts, const int numVerts, const idJointMat *joints, const idDrawVert *base, const short *weights, const int numWeights ) = 0;
	virtual void VPCALL TransformVertsAndTangents( idDrawVert *verts, const int numVerts, const idJointMat *joints, const idVec4 *base, const jointWeight_t *weights, const int numWeights ) = 0;
	virtual void VPCALL TransformVertsAndTangentsFast( idDrawVert *verts, const int numVerts, const idJointMat *joints, const idVec4 *base, const jointWeight_t *weights, const int numWeights ) = 0;
#if SD_SUPPORT_UNSMOOTHEDTANGENTS
	virtual void VPCALL DeriveUnsmoothedTangents( idDrawVert *verts, const dominantTri_s *dominantTris, const int numVerts ) = 0;
#endif // SD_SUPPORT_UNSMOOTHEDTANGENTS
	virtual void VPCALL TracePointCull( byte *cullBits, byte &totalOr, const float radius, const idPlane *planes, const idDrawVert *verts, const int numVerts ) = 0;
	virtual void VPCALL TracePointCullShadowVerts( byte *cullBits, byte &totalOr, const float radius, const idPlane *planes, const struct shadowCache_s *verts, const int numVerts ) = 0;
	virtual void VPCALL DecalPointCull( byte *cullBits, const idPlane *planes, const idDrawVert *verts, const int numVerts ) = 0;
	virtual void VPCALL DecalPointCull( byte *cullBits, const idPlane *planes, const idDrawVert *verts, const int numVerts, int *indexes, int numIndexes ) = 0;
	virtual void VPCALL DecalPointCull( byte *cullBits, const idPlane *planes, const idDrawVert *verts, const int numVerts, unsigned short *indexes, int numIndexes ) = 0;
	virtual void VPCALL OverlayPointCull( byte *cullBits, idVec2 *texCoords, const idPlane *planes, const idDrawVert *verts, const int numVerts ) = 0;
	virtual void VPCALL OverlayPointCull( byte *cullBits, idVec2 *texCoords, const idPlane *planes, const struct shadowCache_s *verts, const int numVerts ) = 0;
	virtual void VPCALL DeriveTriPlanes( idPlane *planes, const idDrawVert *verts, const int numVerts, const vertIndex_t *indexes, const int numIndexes ) = 0;
	virtual void VPCALL DeriveTriPlanes( idPlane *planes, const struct shadowCache_s *verts, const int numVerts, const vertIndex_t *indexes, const int numIndexes ) = 0;
	virtual void VPCALL CalculateFacing( byte *facing, const idPlane *planes, const int numTriangles, const idVec4 &light ) = 0;
	virtual void VPCALL CalculateCullBits( byte *cullBits, const idDrawVert *verts, const int numVerts, const int frontBits, const idPlane lightPlanes[NUM_LIGHT_PLANES] ) = 0;
	virtual int  VPCALL CreateShadowCache( idVec4 *vertexCache, const idDrawVert *verts, const int numVerts ) = 0;
	virtual int  VPCALL CreateShadowCache( idVec4 *vertexCache, const struct shadowCache_s *verts, const int numVerts ) = 0;
	virtual int  VPCALL ShadowVolume_CountFacing( const byte *facing, const int numFaces ) = 0;
	virtual int  VPCALL ShadowVolume_CountFacingCull( byte *facing, const int numFaces, const vertIndex_t *indexes, const byte *cull ) = 0;
	virtual int  VPCALL ShadowVolume_CreateSilTriangles( vertIndex_t *shadowIndexes, const byte *facing, const silEdge_t *silEdges, const int numSilEdges ) = 0;
	virtual int  VPCALL ShadowVolume_CreateSilTrianglesParallel( vertIndex_t *shadowIndexes, const byte *facing, const silEdge_t *silEdges, const int numSilEdges ) = 0;
	virtual int  VPCALL ShadowVolume_CreateCapTriangles( vertIndex_t *shadowIndexes, const byte *facing, const vertIndex_t *indexes, const int numIndexes ) = 0;
	virtual int  VPCALL ShadowVolume_CreateCapTrianglesParallel( vertIndex_t *shadowIndexes, const byte *facing, const vertIndex_t *indexes, const int numIndexes ) = 0;

	// sound mixing
	virtual void VPCALL UpSamplePCMTo44kHz( float *dest, const short *pcm, const int numSamples, const int kHz, const int numChannels ) = 0;
	virtual void VPCALL UpSampleOGGTo44kHz( float *dest, const float * const *ogg, const int numSamples, const int kHz, const int numChannels ) = 0;
	virtual void VPCALL MixSoundTwoSpeakerMono( float *mixBuffer, const float *samples, const int numSamples, const float lastV[2], const float currentV[2] ) = 0;
	virtual void VPCALL MixSoundTwoSpeakerStereo( float *mixBuffer, const float *samples, const int numSamples, const float lastV[2], const float currentV[2] ) = 0;
	virtual void VPCALL MixSoundFourSpeakerMono( float *mixBuffer, const float *samples, const int numSamples, const float lastV[6], const float currentV[6] ) = 0;
	virtual void VPCALL MixSoundFourSpeakerStereo( float *mixBuffer, const float *samples, const int numSamples, const float lastV[6], const float currentV[6] ) = 0;
	virtual void VPCALL MixSoundSixSpeakerMono( float *mixBuffer, const float *samples, const int numSamples, const float lastV[6], const float currentV[6] ) = 0;
	virtual void VPCALL MixSoundSixSpeakerStereo( float *mixBuffer, const float *samples, const int numSamples, const float lastV[6], const float currentV[6] ) = 0;
	virtual void VPCALL MixSoundEightSpeakerMono( float *mixBuffer, const float *samples, const int numSamples, const float lastV[8], const float currentV[8] ) = 0;
	virtual void VPCALL MixSoundEightSpeakerStereo( float *mixBuffer, const float *samples, const int numSamples, const float lastV[8], const float currentV[8] ) = 0;
	virtual void VPCALL MixedSoundToSamples( short *samples, const float *mixBuffer, const int numSamples ) = 0;
};

// pointer to SIMD processor
extern idSIMDProcessor *SIMDProcessor;

#endif /* !__MATH_SIMD_H__ */