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author | Filip Gawin <filip.gawin@zoho.com> | 2020-12-29 18:53:36 +0100 |
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committer | Filip Gawin <filip.gawin@zoho.com> | 2020-12-29 18:53:36 +0100 |
commit | bffaceb579ba66ba675f5b99e93258423b3c97ab (patch) | |
tree | f1e0e8ef4002d2e5b444678c4c98dd8785cbe980 /sdk/rwsdk/include/d3d8/rtslerp.h | |
parent | Reorder CEntity functions into their original order (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | sdk/rwsdk/include/d3d8/rtslerp.h | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/sdk/rwsdk/include/d3d8/rtslerp.h b/sdk/rwsdk/include/d3d8/rtslerp.h deleted file mode 100644 index ec41752c..00000000 --- a/sdk/rwsdk/include/d3d8/rtslerp.h +++ /dev/null @@ -1,262 +0,0 @@ -/* - * Data Structures for Slerps/Spherical Linear Interpolations - * See also GemsIII/quatspin.c in - * http://www.acm.org/pubs/tog/GraphicsGems/gemsiii.zip - * Copyright (c) Criterion Software Limited - */ - -/*************************************************************************** - * * - * Module : rtslerp.h * - * * - * Purpose : Slerp functionality * - * * - **************************************************************************/ - -#ifndef RTSLERP_H -#define RTSLERP_H - -/** - * \defgroup rtslerp RtSlerp - * \ingroup rttool - * - * Slerp/Spherical Linear Interpolations Toolkit for RenderWare. - * - * See also http://www.cis.ohio-state.edu/~parent/book/Full.html - */ - -#include "rwcore.h" -#include "rtquat.h" - -/**************************************************************************** - Includes - */ - -#include "rtslerp.rpe" /* automatically generated header file */ - -/**************************************************************************** - Defines - */ - -/* Masks for specifying which matrices to store by reference */ -#define rtSLERPREFNONE 0x00 -#define rtSLERPREFSTARTMAT 0x01 -#define rtSLERPREFENDMAT 0x02 -#define rtSLERPREFALL (~rtSLERPREFNONE) - -/**************************************************************************** - Global Types - */ - - -typedef struct RtSlerp RtSlerp; -/** - * \ingroup rtslerp - * \struct RtSlerp - * structure describing a Slerps/Spherical Linear Interpolations. - * See also GemsIII/quatspin.c in - * http://www.acm.org/pubs/tog/GraphicsGems/gemsiii.zip - */ -struct RtSlerp -{ - RwInt32 matRefMask; /**< Which matrices do we NOT own */ - RwMatrix *startMat; /**< The start matrix */ - RwMatrix *endMat; /**< The end matrix */ - RwV3d axis; /**< The axis of rotation for the slerp */ - RwReal angle; /**< The angle (in degrees) between src & dest */ - - /* Though a slerp may be a bad idea and opting for a lerp is better */ - RwBool useLerp; /**< Do we want to use lerps? */ -}; - -/* static frame sequence animation - contains no state */ - - -typedef struct RtQuatSlerpCache RtQuatSlerpCache; -/** - * \ingroup rtslerp - * \struct RtQuatSlerpCache - * structure describing a SlerpCache, - * which should be initialized with \ref RtQuatSetupSlerpCache. - */ -struct RtQuatSlerpCache -{ - RtQuat raFrom; /**< Scaled initial quaternion */ - RtQuat raTo; /**< Scaled final quaternion */ - RwReal omega; /**< Angular displacement in radians */ - RwBool nearlyZeroOm; /**< Flags near-zero angular - displacement*/ -}; - - -typedef struct RtQuatSlerpArgandCache RtQuatSlerpArgandCache; -/** - * \ingroup rtslerp - * \struct RtQuatSlerpArgandCache - * a structure describing - * an Argand SlerpCache which should be - * initialized with \ref RtQuatSetupSlerpArgandCache. - * See http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Argand.html - * Jean Argand was an accountant and amateur mathematician. - * He is famed for his geometrical interpretation of the complex numbers - * where i is interpreted as a rotation through 90. - */ -struct RtQuatSlerpArgandCache -{ - RtQuat logTo; /**< field Logarithm of final quaternion */ - RtQuat logBase; /**< Logarithm of initial relative to final quaternion */ -}; - -#define RtQuatSlerpMacro(qpResult, qpFrom, qpTo, rT, sCache) \ -MACRO_START \ -{ \ - if ((rT) <= ((RwReal) 0)) \ - { \ - /* t is before start */ \ - *(qpResult) = *(qpFrom); \ - } \ - else if (((RwReal) 1) <= (rT)) \ - { \ - \ - /* t is after end */ \ - *(qpResult) = *(qpTo); \ - } \ - else \ - { \ - /* ... so t must be in the interior then */ \ - /* Calc coefficients rSclFrom, rSclTo */ \ - RwReal rSclFrom = ((RwReal) 1) - (rT); \ - RwReal rSclTo = (rT); \ - \ - if (!((sCache)->nearlyZeroOm)) \ - { \ - /* Standard case: slerp */ \ - /* SLERPMESSAGE(("Neither nearly ZERO nor nearly PI")); */ \ - \ - rSclFrom *= (sCache)->omega; \ - RwSinMinusPiToPiMacro(rSclFrom, rSclFrom); \ - rSclTo *= (sCache)->omega; \ - RwSinMinusPiToPiMacro(rSclTo, rSclTo); \ - } \ - \ - /* Calc final values */ \ - RwV3dScaleMacro(&(qpResult)->imag, \ - &(sCache)->raFrom.imag, rSclFrom); \ - RwV3dIncrementScaledMacro(&(qpResult)->imag, \ - &(sCache)->raTo.imag, rSclTo); \ - (qpResult)->real = \ - ((sCache)->raFrom.real * rSclFrom) + \ - ((sCache)->raTo.real * rSclTo); \ - } \ -} \ -MACRO_STOP - -#define RtQuatSlerpArgandMacro(qpResult, qpFrom, qpTo, rT, sArgandCache) \ -MACRO_START \ -{ \ - if ((rT) <= ((RwReal) 0)) \ - { \ - /* t is before start */ \ - *(qpResult) = *(qpFrom); \ - } \ - else if (((RwReal) 1) <= (rT)) \ - { \ - /* t is after end */ \ - *(qpResult) = *(qpTo); \ - } \ - else \ - { \ - RtQuat logBlend; \ - \ - /* ... so t must be in the interior then */ \ - \ - logBlend.imag.x = \ - (sArgandCache)->logBase.imag.x + \ - (rT) * (sArgandCache)->logTo.imag.x; \ - logBlend.imag.y = \ - (sArgandCache)->logBase.imag.y + \ - (rT) * (sArgandCache)->logTo.imag.y; \ - logBlend.imag.z = \ - (sArgandCache)->logBase.imag.z + \ - (rT) * (sArgandCache)->logTo.imag.z; \ - logBlend.real = 0; \ - \ - RtQuatUnitExpMacro((qpResult), &logBlend); \ - \ - } \ -} \ -MACRO_STOP - -#if (! ( defined(RWDEBUG) || defined(RWSUPPRESSINLINE) )) - -#define RtQuatSlerp(qpResult, qpFrom, qpTo, rT, sCache) \ - RtQuatSlerpMacro(qpResult, qpFrom, qpTo, rT, sCache) - -#define RtQuatSlerpArgand(qpResult, qpFrom, qpTo, rT, sArgandCache) \ - RtQuatSlerpArgandMacro(qpResult, qpFrom, qpTo, rT, sArgandCache) - -#endif /* (! ( defined(RWDEBUG) || defined(RWSUPPRESSINLINE) )) */ - -/**************************************************************************** - Function prototypes - */ - -#ifdef __cplusplus -extern "C" -{ -#endif /* __cplusplus */ - -/* Creating and destroying slerps */ - -extern RtSlerp *RtSlerpCreate(RwInt32 nMatRefMask); - -extern void RtSlerpDestroy(RtSlerp * spSlerp); - -/* setting up a slerp */ -extern RtSlerp *RtSlerpInitialize(RtSlerp * spSlerp, - RwMatrix * mpMat1, - RwMatrix * mpMat2); - -/* Get a matrix */ -extern RwMatrix *RtSlerpGetMatrix(RtSlerp * spSlerp, - RwMatrix * mpResultMat, - RwReal nDelta); - -/* Set if lerp or slerp */ -extern RtSlerp *RtSlerpSetLerp(RtSlerp * spSlerp, - RwBool bUseLerp); - -extern void -RtQuatSetupSlerpCache(RtQuat * qpFrom, - RtQuat * qpTo, - RtQuatSlerpCache * sCache); - -extern void -RtQuatSetupSlerpArgandCache(RtQuat * qpFrom, - RtQuat * qpTo, - RtQuatSlerpArgandCache * sArgandCache); - -#if ( defined(RWDEBUG) || defined(RWSUPPRESSINLINE) ) - -extern void -RtQuatSlerp(RtQuat * qpResult, - RtQuat * qpFrom, - RtQuat * qpTo, - RwReal rT, - RtQuatSlerpCache * sCache); - -extern void -RtQuatSlerpArgand(RtQuat * qpResult, - RtQuat * qpFrom, - RtQuat * qpTo, - RwReal rT, - RtQuatSlerpArgandCache * sArgandCache); - -#endif /* ( defined(RWDEBUG) || defined(RWSUPPRESSINLINE) ) */ - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* RTSLERP_H */ - |