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