/* 
 * ***** 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.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): Joseph Gilbert
 *
 * ***** END GPL LICENSE BLOCK *****
 *
 */

/** \file blender/python/mathutils/mathutils_Matrix.h
 *  \ingroup pymathutils
 */


#ifndef MATHUTILS_MATRIX_H
#define MATHUTILS_MATRIX_H

extern PyTypeObject matrix_Type;
#define MatrixObject_Check(_v) PyObject_TypeCheck((_v), &matrix_Type)
#define MATRIX_MAX_DIM 4

/* matrix[row][col] == MATRIX_ITEM_INDEX(matrix, row, col) */

#ifdef DEBUG
#  define MATRIX_ITEM_ASSERT(_mat, _row, _col) (BLI_assert(_row < (_mat)->row_size && _col < (_mat)->col_size))
#else
#  define MATRIX_ITEM_ASSERT(_mat, _row, _col) (void)0
#endif

#define MATRIX_ITEM_INDEX(_mat, _row, _col) (MATRIX_ITEM_ASSERT(_mat, _row, _col),(((_mat)->col_size * (_row)) + (_col)))
#define MATRIX_ITEM_PTR(  _mat, _row, _col) ((_mat)->contigPtr + MATRIX_ITEM_INDEX(_mat, _row, _col))
#define MATRIX_ITEM(      _mat, _row, _col) ((_mat)->contigPtr  [MATRIX_ITEM_INDEX(_mat, _row, _col)])

#define MATRIX_ROW_INDEX(_mat, _row) (MATRIX_ITEM_INDEX(_mat, _row, 0))
#define MATRIX_ROW_PTR(  _mat, _row) ((_mat)->contigPtr + MATRIX_ROW_INDEX(_mat, _row))

typedef struct {
	BASE_MATH_MEMBERS(contigPtr);
	unsigned short row_size;
	unsigned short col_size;
} MatrixObject;

/* struct data contains a pointer to the actual data that the
 * object uses. It can use either PyMem allocated data (which will
 * be stored in py_data) or be a wrapper for data allocated through
 * blender (stored in blend_data). This is an either/or struct not both */

/* prototypes */
PyObject *Matrix_CreatePyObject(float *mat,
                                const unsigned short row_size, const unsigned short col_size,
                                int type, PyTypeObject *base_type);
PyObject *Matrix_CreatePyObject_cb(PyObject *user, int row_size, int col_size, int cb_type, int cb_subtype);

extern int mathutils_matrix_vector_cb_index;
extern struct Mathutils_Callback mathutils_matrix_vector_cb;

void matrix_as_3x3(float mat[3][3], MatrixObject *self);

#endif /* MATHUTILS_MATRIX_H */