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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Joseph Gilbert
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __MATHUTILS_H__
#define __MATHUTILS_H__
/** \file blender/python/mathutils/mathutils.h
* \ingroup pymathutils
*/
/* Can cast different mathutils types to this, use for generic funcs */
#include "BLI_compiler_attrs.h"
struct DynStr;
extern char BaseMathObject_is_wrapped_doc[];
extern char BaseMathObject_is_frozen_doc[];
extern char BaseMathObject_owner_doc[];
#define BASE_MATH_NEW(struct_name, root_type, base_type) \
(struct_name *)((base_type ? (base_type)->tp_alloc(base_type, 0) : _PyObject_GC_New(&(root_type))));
/** BaseMathObject.flag */
enum {
/**
* Do not own the memory used in this vector,
* \note This is error prone if the memory may be freed while this vector is in use.
* Prefer using callbacks where possible, see: #Mathutils_RegisterCallback
*/
BASE_MATH_FLAG_IS_WRAP = (1 << 0),
/**
* Prevent changes to the vector so it can be used as a set or dictionary key for example.
* (typical use cases for tuple).
*/
BASE_MATH_FLAG_IS_FROZEN = (1 << 1),
};
#define BASE_MATH_FLAG_DEFAULT 0
#define BASE_MATH_MEMBERS(_data) \
PyObject_VAR_HEAD \
float *_data; /* array of data (alias), wrapped status depends on wrapped status */ \
PyObject *cb_user; /* if this vector references another object, otherwise NULL, \
* *Note* this owns its reference */ \
unsigned char cb_type; /* which user funcs do we adhere to, RNA, GameObject, etc */ \
unsigned char cb_subtype; /* subtype: location, rotation... \
* to avoid defining many new functions for every attribute of the same type */ \
unsigned char flag /* wrapped data type? */ \
typedef struct {
BASE_MATH_MEMBERS(data);
} BaseMathObject;
/* types */
#include "mathutils_Vector.h"
#include "mathutils_Matrix.h"
#include "mathutils_Quaternion.h"
#include "mathutils_Euler.h"
#include "mathutils_Color.h"
PyObject *BaseMathObject_owner_get(BaseMathObject *self, void *);
PyObject *BaseMathObject_is_wrapped_get(BaseMathObject *self, void *);
PyObject *BaseMathObject_is_frozen_get(BaseMathObject *self, void *);
extern char BaseMathObject_freeze_doc[];
PyObject *BaseMathObject_freeze(BaseMathObject *self);
int BaseMathObject_traverse(BaseMathObject *self, visitproc visit, void *arg);
int BaseMathObject_clear(BaseMathObject *self);
void BaseMathObject_dealloc(BaseMathObject *self);
PyMODINIT_FUNC PyInit_mathutils(void);
int EXPP_FloatsAreEqual(float A, float B, int floatSteps);
int EXPP_VectorsAreEqual(const float *vecA, const float *vecB, int size, int floatSteps);
typedef struct Mathutils_Callback Mathutils_Callback;
typedef int (*BaseMathCheckFunc)(BaseMathObject *); /* checks the user is still valid */
typedef int (*BaseMathGetFunc)(BaseMathObject *, int); /* gets the vector from the user */
typedef int (*BaseMathSetFunc)(BaseMathObject *, int); /* sets the users vector values once its modified */
typedef int (*BaseMathGetIndexFunc)(BaseMathObject *, int, int); /* same as above but only for an index */
typedef int (*BaseMathSetIndexFunc)(BaseMathObject *, int, int); /* same as above but only for an index */
struct Mathutils_Callback {
BaseMathCheckFunc check;
BaseMathGetFunc get;
BaseMathSetFunc set;
BaseMathGetIndexFunc get_index;
BaseMathSetIndexFunc set_index;
};
unsigned char Mathutils_RegisterCallback(Mathutils_Callback *cb);
int _BaseMathObject_ReadCallback(BaseMathObject *self);
int _BaseMathObject_WriteCallback(BaseMathObject *self);
int _BaseMathObject_ReadIndexCallback(BaseMathObject *self, int index);
int _BaseMathObject_WriteIndexCallback(BaseMathObject *self, int index);
void _BaseMathObject_RaiseFrozenExc(const BaseMathObject *self);
void _BaseMathObject_RaiseNotFrozenExc(const BaseMathObject *self);
/* since this is called so often avoid where possible */
#define BaseMath_ReadCallback(_self) \
(((_self)->cb_user ? _BaseMathObject_ReadCallback((BaseMathObject *)_self) : 0))
#define BaseMath_WriteCallback(_self) \
(((_self)->cb_user ?_BaseMathObject_WriteCallback((BaseMathObject *)_self) : 0))
#define BaseMath_ReadIndexCallback(_self, _index) \
(((_self)->cb_user ? _BaseMathObject_ReadIndexCallback((BaseMathObject *)_self, _index) : 0))
#define BaseMath_WriteIndexCallback(_self, _index) \
(((_self)->cb_user ? _BaseMathObject_WriteIndexCallback((BaseMathObject *)_self, _index) : 0))
/* support BASE_MATH_FLAG_IS_FROZEN */
#define BaseMath_ReadCallback_ForWrite(_self) \
(UNLIKELY((_self)->flag & BASE_MATH_FLAG_IS_FROZEN) ? \
(_BaseMathObject_RaiseFrozenExc((BaseMathObject *)_self), -1) : (BaseMath_ReadCallback(_self)))
#define BaseMath_ReadIndexCallback_ForWrite(_self, _index) \
(UNLIKELY((_self)->flag & BASE_MATH_FLAG_IS_FROZEN) ? \
(_BaseMathObject_RaiseFrozenExc((BaseMathObject *)_self), -1) : (BaseMath_ReadIndexCallback(_self, _index)))
#define BaseMath_Prepare_ForWrite(_self) \
(UNLIKELY((_self)->flag & BASE_MATH_FLAG_IS_FROZEN) ? \
(_BaseMathObject_RaiseFrozenExc((BaseMathObject *)_self), -1) : 0)
#define BaseMathObject_Prepare_ForHash(_self) \
(UNLIKELY(((_self)->flag & BASE_MATH_FLAG_IS_FROZEN) == 0) ? \
(_BaseMathObject_RaiseNotFrozenExc((BaseMathObject *)_self), -1) : 0)
/* utility func */
int mathutils_array_parse(float *array, int array_min, int array_max, PyObject *value, const char *error_prefix);
int mathutils_array_parse_alloc(float **array, int array_min, PyObject *value, const char *error_prefix);
int mathutils_array_parse_alloc_v(float **array, int array_dim, PyObject *value, const char *error_prefix);
int mathutils_any_to_rotmat(float rmat[3][3], PyObject *value, const char *error_prefix);
Py_hash_t mathutils_array_hash(const float *float_array, size_t array_len);
/* zero remaining unused elements of the array */
#define MU_ARRAY_ZERO (1u << 30)
/* ignore larger py sequences than requested (just use first elements),
* handy when using 3d vectors as 2d */
#define MU_ARRAY_SPILL (1u << 31)
#define MU_ARRAY_FLAGS (MU_ARRAY_ZERO | MU_ARRAY_SPILL)
int column_vector_multiplication(float rvec[4], VectorObject *vec, MatrixObject *mat);
#ifndef MATH_STANDALONE
/* dynstr as python string utility funcions */
PyObject *mathutils_dynstr_to_py(struct DynStr *ds);
#endif
int mathutils_deepcopy_args_check(PyObject *args);
#endif /* __MATHUTILS_H__ */
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