Files
itgmania212121/stepmania/src/RageMath.h
T
Glenn Maynard a56b7ac59b Declare these as const functions, like sinf and cosf. This fixes the compiler
not optimizing calls to these as well as sinf/cosf.
2005-07-28 02:47:51 +00:00

80 lines
3.8 KiB
C

/* RageMath - vector/matrix math utilities. */
#ifndef RAGE_MATH_H
#define RAGE_MATH_H
#define PI (3.141592653589793f)
#define DegreeToRadian( degree ) ((degree) * (PI / 180.0f))
#define RadianToDegree( radian ) ((radian) * (180.0f / PI))
struct RageVector2;
struct RageVector3;
struct RageVector4;
struct RageMatrix;
void RageVec3ClearBounds( RageVector3 &mins, RageVector3 &maxs );
void RageVec3AddToBounds( const RageVector3 &p, RageVector3 &mins, RageVector3 &maxs );
void RageVec2Normalize( RageVector2* pOut, const RageVector2* pV );
void RageVec3Normalize( RageVector3* pOut, const RageVector3* pV );
void RageVec3TransformCoord( RageVector3* pOut, const RageVector3* pV, const RageMatrix* pM );
void RageVec3TransformNormal( RageVector3* pOut, const RageVector3* pV, const RageMatrix* pM );
void RageVec4TransformCoord( RageVector4* pOut, const RageVector4* pV, const RageMatrix* pM );
void RageMatrixIdentity( RageMatrix* pOut );
// pOut = pB * pA
void RageMatrixMultiply( RageMatrix* pOut, const RageMatrix* pA, const RageMatrix* pB );
void RageMatrixTranslation( RageMatrix* pOut, float x, float y, float z );
void RageMatrixScaling( RageMatrix* pOut, float x, float y, float z );
void RageMatrixSkewX( RageMatrix* pOut, float fAmount );
void RageMatrixTranslate( RageMatrix* pOut, float fTransX, float fTransY, float fTransZ );
void RageMatrixScale( RageMatrix* pOut, float fScaleX, float fScaleY, float fScaleZ );
void RageMatrixRotationX( RageMatrix* pOut, float fTheta );
void RageMatrixRotationY( RageMatrix* pOut, float fTheta );
void RageMatrixRotationZ( RageMatrix* pOut, float fTheta );
void RageMatrixRotationXYZ( RageMatrix* pOut, float rX, float rY, float rZ );
void RageQuatFromHPR(RageVector4* pOut, RageVector3 hpr );
void RageQuatFromPRH(RageVector4* pOut, RageVector3 prh );
void RageMatrixFromQuat( RageMatrix* pOut, const RageVector4 q );
void RageQuatSlerp(RageVector4 *pOut, const RageVector4 &from, const RageVector4 &to, float t);
RageVector4 RageQuatFromH(float theta);
RageVector4 RageQuatFromP(float theta);
RageVector4 RageQuatFromR(float theta);
void RageQuatMultiply( RageVector4* pOut, const RageVector4 &pA, const RageVector4 &pB );
RageMatrix RageLookAt(
float eyex, float eyey, float eyez,
float centerx, float centery, float centerz,
float upx, float upy, float upz );
void RageMatrixAngles( RageMatrix* pOut, const RageVector3 &angles );
void RageMatrixTranspose( RageMatrix* pOut, const RageMatrix* pIn );
float RageFastSin( float x ) CONST_FUNCTION;
float RageFastCos( float x ) CONST_FUNCTION;
#endif
/*
* Copyright (c) 2001-2003 Chris Danford
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, and/or sell copies of the Software, and to permit persons to
* whom the Software is furnished to do so, provided that the above
* copyright notice(s) and this permission notice appear in all copies of
* the Software and that both the above copyright notice(s) and this
* permission notice appear in supporting documentation.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/