DOOM-3-BFG/neo/idlib/math/Simd.h

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

Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 

This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").  

Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Doom 3 BFG Edition Source Code.  If not, see <http://www.gnu.org/licenses/>.

In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code.  If not, please request a copy in writing from id Software at the address below.

If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.

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

#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();
	static void			InitProcessor( const char *module, bool forceGeneric );
	static void			Shutdown();
	static void			Test_f( const class idCmdArgs &args );
};


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

	virtual base class for different SIMD processors

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

#define VPCALL __fastcall

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 idJointMat;
struct dominantTri_t;

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

	cpuid_t							cpuid;

	virtual const char * VPCALL		GetName() const = 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 triIndex_t *indexes,		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;

	// animation
	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;
};

// pointer to SIMD processor
extern idSIMDProcessor *SIMDProcessor;

#endif /* !__MATH_SIMD_H__ */