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92 lines
1.4 KiB
C++
92 lines
1.4 KiB
C++
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/*
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* Copyright (c) 1993-1995 by Argonaut Technologies Limited. All rights reserved.
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*
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* $Id: transfrm.h 1.11 1995/02/22 21:37:24 sam Exp $
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* $Locker: $
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*
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* Structure describing an affine transform from one coordinate space
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* to another
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*/
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#ifndef _TRANSFRM_H_
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#define _TRANSFRM_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Type of actor position
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*/
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enum {
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BR_TRANSFORM_MATRIX34,
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BR_TRANSFORM_MATRIX34_LP,
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BR_TRANSFORM_QUAT,
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BR_TRANSFORM_EULER,
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BR_TRANSFORM_LOOK_UP,
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BR_TRANSFORM_TRANSLATION,
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BR_TRANSFORM_IDENTITY,
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BR_TRANSFORM_MAX
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};
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typedef struct br_transform {
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/*
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* Type of position
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*/
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br_uint_16 type;
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/*
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* Union of the various means of describing a transform -
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* these are explicity arrranged so that any exlicit transform
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* will always be available as br_transform.t.translate
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*/
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union {
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/*
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* Affine 3x4 matrix
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*/
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br_matrix34 mat;
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/*
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* Euler angles and translation
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*/
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struct {
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br_euler e;
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br_scalar _pad[7];
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br_vector3 t;
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} euler;
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/*
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* Unit quaternion and translation
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*/
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struct {
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br_quat q;
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br_scalar _pad[5];
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br_vector3 t;
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} quat;
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/*
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* Lookat vector, up vector and translation
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*/
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struct {
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br_vector3 look;
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br_vector3 up;
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br_scalar _pad[3];
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br_vector3 t;
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} look_up;
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/*
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* Just a translation
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*/
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struct {
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br_scalar _pad[9];
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br_vector3 t;
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} translate;
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} t;
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} br_transform;
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#ifdef __cplusplus
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};
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#endif
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#endif
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