forked from enlightenment/efl
1068 lines
30 KiB
C
1068 lines
30 KiB
C
/* EINA - EFL data type library
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* Copyright (C) 2007-2014 Jorge Luis Zapata
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef EINA_MATRIX3_H_
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#define EINA_MATRIX3_H_
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#include "eina_quad.h"
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/**
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* @file
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* @ender_group{Eina_Matrix_Type}
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* @ender_group{Eina_Matrix3_F16p16}
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* @ender_group{Eina_Matrix3}
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*/
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/**
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* @addtogroup Eina_Data_Types_Group Data Types
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*
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* @{
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*/
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/**
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* @defgroup Eina_Matrix_Group Matrix
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*
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* @{
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*/
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/**
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* @typedef Eina_Matrix_Type
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* Matrix3 types
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*/
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typedef enum _Eina_Matrix_Type
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{
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EINA_MATRIX_TYPE_IDENTITY, /**< Identity matrix3 type */
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EINA_MATRIX_TYPE_AFFINE, /**< Affine matrix3 type */
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EINA_MATRIX_TYPE_PROJECTIVE, /**< Projective matrix3 type */
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EINA_MATRIX_TYPE_LAST /**< The total number of matrix3 types */
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} Eina_Matrix_Type;
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/**
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* @defgroup Eina_Matrix3_Group 3x3 Matrices in floating point
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*
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* @brief Matrix definition and operations.
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*
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* @{
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*/
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/**
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* @typedef Eina_Matrix3
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* Floating point matrix3 handler
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*/
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typedef struct _Eina_Matrix3 Eina_Matrix3;
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/**
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* @struct _Eina_Matrix3
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* Floating point matrix3 handler
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*/
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struct _Eina_Matrix3
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{
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double xx; /**< xx in x' = (x * xx) + (y * xy) + xz */
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double xy; /**< xy in x' = (x * xx) + (y * xy) + xz */
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double xz; /**< xz in x' = (x * xx) + (y * xy) + xz */
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double yx; /**< yx in y' = (x * yx) + (y * yy) + yz */
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double yy; /**< yy in y' = (x * yx) + (y * yy) + yz */
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double yz; /**< yz in y' = (x * yx) + (y * yy) + yz */
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double zx; /**< zx in z' = (x * zx) + (y * zy) + zz */
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double zy; /**< zy in z' = (x * zx) + (y * zy) + zz */
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double zz; /**< zz in z' = (x * zx) + (y * zy) + zz */
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};
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/**
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* @}
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*/
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/**
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* @defgroup Eina_Matrix4_Group 4x4 Matrices in floating point
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*
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* @brief Matrix definition and operations.
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*
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* @{
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*/
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/**
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* @typedef Eina_Matrix4
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* Floating point matrix4 handler
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*/
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typedef struct _Eina_Matrix4 Eina_Matrix4;
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/**
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* @struct Eina_Matrix4
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* Floating point matrix4 handler
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*/
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struct _Eina_Matrix4
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{
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double xx; /**< xx in x' = (x * xx) + (y * xy) + (z * xz) + xw */
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double xy; /**< xy in x' = (x * xx) + (y * xy) + (z * xz) + xw */
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double xz; /**< xz in x' = (x * xx) + (y * xy) + (z * xz) + xw */
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double xw; /**< xw in x' = (x * xx) + (y * xy) + (z * xz) + xw */
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double yx; /**< yx in y' = (x * yx) + (y * yy) + (z * yz) + yw */
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double yy; /**< yy in y' = (x * yx) + (y * yy) + (z * yz) + yw */
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double yz; /**< yz in y' = (x * yx) + (y * yy) + (z * yz) + yw */
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double yw; /**< yw in y' = (x * yx) + (y * yy) + (z * yz) + yw */
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double zx; /**< zx in z' = (x * zx) + (y * zy) + (z * zz) + zw */
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double zy; /**< zy in z' = (x * zx) + (y * zy) + (z * zz) + zw */
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double zz; /**< zz in z' = (x * zx) + (y * zy) + (z * zz) + zw */
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double zw; /**< zw in z' = (x * zx) + (y * zy) + (z * zz) + zw */
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double wx; /**< wx in w' = (x * wx) + (y * wy) + (z * wz) + ww */
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double wy; /**< wy in w' = (x * wx) + (y * wy) + (z * wz) + ww */
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double wz; /**< wz in w' = (x * wx) + (y * wy) + (z * wz) + ww */
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double ww; /**< ww in w' = (x * wx) + (y * wy) + (z * wz) + ww */
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};
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/**
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* @}
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*/
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/**
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* @defgroup Eina_Matrix3_F16p16_Group 3x3 Matrices in fixed point
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*
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* @brief Fixed point matrix operations.
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* @{
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*/
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/**
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* @typedef Eina_Matrix3_F16p16
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* Fixed point matrix3 handler
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*/
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typedef struct _Eina_Matrix3_F16p16 Eina_Matrix3_F16p16;
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/**
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* @struct Eina_Matrix3_F16p16
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* Fixed point matrix3 handler
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*/
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struct _Eina_Matrix3_F16p16
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{
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Eina_F16p16 xx; /**< xx in x' = (x * xx) + (y * xy) + xz */
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Eina_F16p16 xy; /**< xy in x' = (x * xx) + (y * xy) + xz */
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Eina_F16p16 xz; /**< xz in x' = (x * xx) + (y * xy) + xz */
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Eina_F16p16 yx; /**< yx in y' = (x * yx) + (y * yy) + yz */
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Eina_F16p16 yy; /**< yy in y' = (x * yx) + (y * yy) + yz */
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Eina_F16p16 yz; /**< yz in y' = (x * yx) + (y * yy) + yz */
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Eina_F16p16 zx; /**< zx in z' = (x * zx) + (y * zy) + zz */
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Eina_F16p16 zy; /**< zy in z' = (x * zx) + (y * zy) + zz */
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Eina_F16p16 zz; /**< zz in z' = (x * zx) + (y * zy) + zz */
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};
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/**
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* @brief Sets the given fixed point matrix to the identity matrix.
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*
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* @param m The fixed point matrix to set
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*
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* This function sets @p m to the identity matrix. No check is done on
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* @p m.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_f16p16_identity(Eina_Matrix3_F16p16 *m);
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/**
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* @brief Sets dst as the matrix multiplication (composition) of two
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* Eina_F16p16 matrices.
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*
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* In matrix multiplication, AB, the resultant matrix is created from
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* the rows of A multiplied against the columns of B and summed. This
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* is not a cummutative; i.e. AB != BA, so the ordering of arguments
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* @p m1 and @p m2 matters.
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*
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* @param[in] m1 The first matrix. Must be non-NULL.
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* @param[in] m2 The second matrix. Must be non-NULL.
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* @param[out] dst The matrix for the results to be placed.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_f16p16_compose(const Eina_Matrix3_F16p16 *m1,
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const Eina_Matrix3_F16p16 *m2,
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Eina_Matrix3_F16p16 *dst);
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/**
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* @brief Returns the type of the given fixed point matrix.
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*
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* @param m The fixed point matrix.
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* @return The type of the matrix.
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*
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* This function returns the type of the matrix @p m. No check is done
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* on @p m.
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*
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* @since 1.14
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*/
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EAPI Eina_Matrix_Type eina_matrix3_f16p16_type_get(const Eina_Matrix3_F16p16 *m);
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/**
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* @}
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*/
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/**
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* @addtogroup Eina_Matrix3_Group
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*
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* @{
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*/
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/** Helper macro for printf formatting */
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#define EINA_MATRIX3_FORMAT "g %g %g | %g %g %g | %g %g %g"
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/** Helper macro for printf formatting arg */
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#define EINA_MATRIX3_ARGS(m) (m)->xx, (m)->xy, (m)->xz, \
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(m)->yx, (m)->yy, (m)->yz, \
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(m)->zx, (m)->zy, (m)->zz
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/**
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* @brief Returns the type of the given floating point matrix.
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*
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* @param m The floating point matrix.
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* @return The type of the matrix.
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*
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* This function returns the type of the matrix @p m. No check is done
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* on @p m.
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*
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* @since 1.14
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*/
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EAPI Eina_Matrix_Type eina_matrix3_type_get(const Eina_Matrix3 *m);
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/**
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* @brief Sets the values of the coefficients of the given floating
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* point matrix.
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*
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* @param m The floating point matrix.
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* @param xx The first coefficient value.
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* @param xy The second coefficient value.
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* @param xz The third coefficient value.
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* @param yx The fourth coefficient value.
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* @param yy The fifth coefficient value.
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* @param yz The sixth coefficient value.
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* @param zx The seventh coefficient value.
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* @param zy The eighth coefficient value.
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* @param zz The nineth coefficient value.
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*
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* This function sets the values of the coefficients of the matrix
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* @p m. No check is done on @p m.
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*
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* @see eina_matrix3_values_get()
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_values_set(Eina_Matrix3 *m,
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double xx, double xy, double xz,
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double yx, double yy, double yz,
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double zx, double zy, double zz);
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/**
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* @brief Gets the values of the coefficients of the given floating
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* point matrix.
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*
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* @param m The floating point matrix.
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* @param xx The first coefficient value.
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* @param xy The second coefficient value.
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* @param xz The third coefficient value.
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* @param yx The fourth coefficient value.
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* @param yy The fifth coefficient value.
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* @param yz The sixth coefficient value.
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* @param zx The seventh coefficient value.
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* @param zy The eighth coefficient value.
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* @param zz The nineth coefficient value.
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*
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* This function gets the values of the coefficients of the matrix
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* @p m. No check is done on @p m.
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*
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* @see eina_matrix3_values_set()
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_values_get(const Eina_Matrix3 *m,
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double *xx, double *xy, double *xz,
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double *yx, double *yy, double *yz,
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double *zx, double *zy, double *zz);
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/**
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* @brief Gets the values of the coefficients of the given fixed
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* point matrix.
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*
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* @param m The fixed point matrix.
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* @param xx The first coefficient value.
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* @param xy The second coefficient value.
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* @param xz The third coefficient value.
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* @param yx The fourth coefficient value.
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* @param yy The fifth coefficient value.
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* @param yz The sixth coefficient value.
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* @param zx The seventh coefficient value.
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* @param zy The eighth coefficient value.
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* @param zz The nineth coefficient value.
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*
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* This function gets the values of the coefficients of the matrix
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* @p m. No check is done on @p m.
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*
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* @see eina_matrix3_values_set()
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_fixed_values_get(const Eina_Matrix3 *m,
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Eina_F16p16 *xx, Eina_F16p16 *xy, Eina_F16p16 *xz,
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Eina_F16p16 *yx, Eina_F16p16 *yy, Eina_F16p16 *yz,
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Eina_F16p16 *zx, Eina_F16p16 *zy, Eina_F16p16 *zz);
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/**
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* @brief Transforms the given floating point matrix to the given fixed
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* point matrix.
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*
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* @param m The floating point matrix.
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* @param fm The fixed point matrix.
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*
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* This function transforms the floating point matrix @p m to a fixed
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* point matrix and store the coefficients into the fixed point matrix
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* @p fm.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_matrix3_f16p16_to(const Eina_Matrix3 *m,
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Eina_Matrix3_F16p16 *fm);
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/**
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* @brief Checks whether the two given matrices are equal or not.
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*
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* @param m1 The first matrix.
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* @param m2 The second matrix.
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* @return EINA_TRUE if the two matrices are equal, @c 0 otherwise.
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*
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* This function return EINA_TRUE if the matrices @p m1 and @p m2 are
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* equal, EINA_FALSE otherwise. No check is done on the matrices.
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*
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* @since 1.14
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*/
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EAPI Eina_Bool eina_matrix3_equal(const Eina_Matrix3 *m1, const Eina_Matrix3 *m2);
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/**
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* @brief Sets dst as the matrix multiplication (composition) of two matrices.
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*
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* In matrix multiplication, AB, the resultant matrix is created from
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* the rows of A multiplied against the columns of B and summed. This
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* is not a cummutative; i.e. AB != BA, so the ordering of arguments
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* @p m1 and @p m2 matters.
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*
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* @param[in] m1 The first matrix. Must be non-NULL.
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* @param[in] m2 The second matrix. Must be non-NULL.
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* @param[out] dst The matrix for the results to be placed.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_compose(const Eina_Matrix3 *m1,
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const Eina_Matrix3 *m2,
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Eina_Matrix3 *dst);
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/**
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* @brief Sets the matrix values for a translation.
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* @param[in] m The matrix to set the translation values
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* @param[in] tx The X coordinate translate
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* @param[in] ty The Y coordinate translate
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_translate(Eina_Matrix3 *t, double tx, double ty);
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/**
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* @brief Sets the matrix values for a scale.
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* @param[in] m The matrix to set the scale values
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* @param[in] sx The X coordinate scale
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* @param[in] sy The Y coordinate scale
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_scale(Eina_Matrix3 *t, double sx, double sy);
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/**
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* @brief Sets the matrix values for a rotation.
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* @param[in] t The matrix to set the rotation values
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* @param[in] rad The radius to rotate the matrix
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_rotate(Eina_Matrix3 *t, double rad);
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/**
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* @brief Sets the given floating point matrix to the identity matrix.
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*
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* @param m The floating point matrix to set
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*
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* This function sets @p m to the identity matrix. No check is done on
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* @p m.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_identity(Eina_Matrix3 *t);
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/**
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* @brief Returns the determinant of the given matrix.
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*
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* @param m The matrix.
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* @return The determinant.
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*
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* This function returns the determinant of the matrix @p m. No check
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* is done on @p m.
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*
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* @since 1.14
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*/
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EAPI double eina_matrix3_determinant(const Eina_Matrix3 *m);
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/**
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* @brief Divides the given matrix by the given scalar.
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*
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* @param m The matrix.
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* @param scalar The scalar number.
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*
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* This function divides the matrix @p m by @p scalar. No check
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* is done on @p m.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_divide(Eina_Matrix3 *m, double scalar);
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/**
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* @brief Computes the inverse of the given matrix.
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*
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* @param m The source matrix.
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* @param m2 The inverse matrix.
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*
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* This function inverts the matrix @p m and stores the result in
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* @p m2. No check is done on @p m or @p m2. If @p m can not be
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* invertible, then @p m2 is set to the identity matrix.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_inverse(const Eina_Matrix3 *m, Eina_Matrix3 *m2);
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/**
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* @brief Computes the transpose of the given matrix.
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*
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* @param m The source matrix.
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* @param a The transposed matrix.
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*
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* This function transposes the matrix @p m and stores the result in
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* @p a. No check is done on @p m or @p a. The transpose of a matrix
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* essentially flips a matrix over its diagonal.
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*
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* @since 1.14
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*/
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EAPI void eina_matrix3_transpose(const Eina_Matrix3 *m, Eina_Matrix3 *a);
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/**
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* @brief Computes the cofactor of the given matrix.
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*
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* @param m The source matrix.
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* @param a The cofactored matrix.
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*
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* This function cofactors the matrix @p m and stores the result in
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* @p a. No check is done on @p m or @p a. The cofactor of a matrix3 at
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* row i, column j is computed by taking the determinant of the
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* submatrix formed by deleting the i-th row and j-th column, and then
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* multiplying by (-1)^(i+j).
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*
|
|
* @since 1.14
|
|
*/
|
|
EAPI void eina_matrix3_cofactor(const Eina_Matrix3 *m, Eina_Matrix3 *a);
|
|
|
|
/**
|
|
* @brief Computes the adjoint of the given matrix.
|
|
*
|
|
* @param m The matrix to be adjointed.
|
|
* @param a The adjoint matrix.
|
|
*
|
|
* This function finds the adjoint of the matrix @p m and stores the
|
|
* result in @p a. No check is done on @p m or @p a. The adjoint of a
|
|
* matrix3 is effectively the transpose of its cofactor.
|
|
*
|
|
* @since 1.14
|
|
*/
|
|
EAPI void eina_matrix3_adjoint(const Eina_Matrix3 *m, Eina_Matrix3 *a);
|
|
|
|
/**
|
|
* @brief Computes the transform of a 2D point using the given matrix.
|
|
*
|
|
* @param m The transformation matrix to apply.
|
|
* @param x The x point to be transformed.
|
|
* @param y The y point to be transformed.
|
|
* @param xr The transformed x point.
|
|
* @param yr The transformed y point.
|
|
*
|
|
* Applies the transformation matrix @p m to the point (x,y), and stores
|
|
* the result in (*xr,*yr). No check is done on @p m; @p xr and @p yr
|
|
* must point to valid memory. A fast-path is included for if the zx
|
|
* and zy components of the matrix are zero.
|
|
*
|
|
* @since 1.14
|
|
*/
|
|
EAPI void eina_matrix3_point_transform(const Eina_Matrix3 *m,
|
|
double x, double y,
|
|
double *xr, double *yr);
|
|
/**
|
|
* @brief Computes the transformation of a rectangle using the given matrix.
|
|
*
|
|
* @param m The transformation matrix to apply.
|
|
* @param r The rectangle to be transformed.
|
|
* @param q The resultant transformed points.
|
|
*
|
|
* Performs a point transformation of each corner of the rectangle @p r,
|
|
* and stores the result in the quadrangle @p q. No checks are done on the
|
|
* inputs, and @p q must point to valid memory.
|
|
*
|
|
* @since 1.14
|
|
*/
|
|
EAPI void eina_matrix3_rectangle_transform(const Eina_Matrix3 *m,
|
|
const Eina_Rectangle *r,
|
|
const Eina_Quad *q);
|
|
|
|
/**
|
|
* @brief Creates a projective matrix that maps a quadrangle to a quadrangle.
|
|
*
|
|
* @param m The transformation matrix to create.
|
|
* @param src The source quadrangle.
|
|
* @param dst The destination quadrangle.
|
|
* @return @c EINA_TRUE if matrix could be successfully created, @c EINA_FALSE otherwise.
|
|
*
|
|
* Calculates a matrix @p m that can be used to transform from an arbitrary
|
|
* source quadrangle @p src to another arbitrary quadrangle @p dst.
|
|
*/
|
|
EAPI Eina_Bool eina_matrix3_quad_quad_map(Eina_Matrix3 *m,
|
|
const Eina_Quad *src,
|
|
const Eina_Quad *dst);
|
|
|
|
/**
|
|
* @brief Creates a matrix for unit-square to quad mapping.
|
|
*
|
|
* @param m The transformation matrix to create.
|
|
* @param q The source quadrangle.
|
|
* @return @c EINA_TRUE if matrix could be successfully created, @c EINA_FALSE otherwise.
|
|
*
|
|
* Calculates a matrix @p m that can be used to transform an arbitrary
|
|
* quadrangle @p q into a square. If @p q is a parallelogram, then a
|
|
* fast path affine transformation is used, otherwise it computes the
|
|
* matrix using a full projective transformation operation. No other
|
|
* checks are done on @p m or @p q.
|
|
*
|
|
* @since 1.14
|
|
*/
|
|
EAPI Eina_Bool eina_matrix3_square_quad_map(Eina_Matrix3 *m,
|
|
const Eina_Quad *q);
|
|
|
|
/**
|
|
* @brief Creates a matrix for mapping squares to match quad.
|
|
*
|
|
* @param m The transformation matrix to create.
|
|
* @param q The source quadrangle.
|
|
* @return @c EINA_FALSE on successful transform creation, @c EINA_FALSE otherwise.
|
|
*
|
|
* Calculates a matrix @p m that can be used to transform a square to
|
|
* fit a given quadrangle. The created matrix will always have its zz
|
|
* element equal to 1.0. The @p m matrix and @p q quad must be valid
|
|
* memory.
|
|
*
|
|
* @since 1.14
|
|
*/
|
|
EAPI Eina_Bool eina_matrix3_quad_square_map(Eina_Matrix3 *m,
|
|
const Eina_Quad *q);
|
|
|
|
/**
|
|
* @brief Sets array to matrix.
|
|
*
|
|
* @param m The result matrix
|
|
* @param v The the array[9] for set
|
|
*
|
|
* Set to matrix first 9 elements from array
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix3_array_set(Eina_Matrix3 *m, const double *v);
|
|
|
|
/**
|
|
* @brief Copies matrix.
|
|
*
|
|
* @param dst The matrix copy
|
|
* @param src The matrix for copy.
|
|
*
|
|
* @since 1.16
|
|
*/
|
|
EAPI void eina_matrix3_copy(Eina_Matrix3 *dst, const Eina_Matrix3 *src);
|
|
|
|
/**
|
|
* @brief Multiplies two matrices.
|
|
*
|
|
* @param out The resulting matrix
|
|
* @param mat_a The first member of the multiplication
|
|
* @param mat_b The second member of the multiplication
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix3_multiply(Eina_Matrix3 *out, const Eina_Matrix3 *mat_a,
|
|
const Eina_Matrix3 *mat_b);
|
|
|
|
/**
|
|
* @brief Multiplies two matrices.
|
|
*
|
|
* @param out The resulting matrix
|
|
* @param mat_a The first member of the multiplication
|
|
* @param mat_b The second member of the multiplication
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix3_multiply_copy(Eina_Matrix3 *out, const Eina_Matrix3 *mat_a,
|
|
const Eina_Matrix3 *mat_b);
|
|
|
|
/**
|
|
* @brief Transforms scale of matrix.
|
|
*
|
|
* @param out The resulting matrix
|
|
* @param s_x The scale value for x
|
|
* @param s_y The scale value for y
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix3_scale_transform_set(Eina_Matrix3 *out, double s_x, double s_y);
|
|
|
|
/**
|
|
* @brief Transforms position of matrix.
|
|
*
|
|
* @param out The resulting matrix
|
|
* @param p_x The position value for x
|
|
* @param p_y The position value for y
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix3_position_transform_set(Eina_Matrix3 *out, const double p_x,
|
|
const double p_y);
|
|
|
|
/**
|
|
* @brief Sets normal of the given matrix.
|
|
*
|
|
* @param out The result mtrix of normal
|
|
* @param m The matrix
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_normal3_matrix_get(Eina_Matrix3 *out, const Eina_Matrix4 *m);
|
|
|
|
/**
|
|
* @brief Converts an Eina_Matrix3 into an Eina_Matrix4.
|
|
*
|
|
* @param m3 The destination Eina_Matrix3.
|
|
* @param m4 The source Eina_Matrix4.
|
|
*
|
|
* @since 1.15
|
|
*/
|
|
EAPI void eina_matrix3_matrix4_to(Eina_Matrix4 *m4, const Eina_Matrix3 *m3);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup Eina_Matrix4_Group
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Returns the type of the given floating point matrix.
|
|
*
|
|
* @param m The floating point matrix.
|
|
* @return The type of the matrix.
|
|
*
|
|
* This function returns the type of the matrix @p m. No check is done
|
|
* on @p m.
|
|
*
|
|
* @since 1.15
|
|
*/
|
|
EAPI Eina_Matrix_Type eina_matrix4_type_get(const Eina_Matrix4 *m);
|
|
|
|
/**
|
|
* @brief Sets the values of the coefficients of the given floating
|
|
* point matrix.
|
|
*
|
|
* @param m The floating point matrix.
|
|
* @param xx The first coefficient value.
|
|
* @param xy The second coefficient value.
|
|
* @param xz The third coefficient value.
|
|
* @param xw The fourth coefficient value.
|
|
* @param yx The fifth coefficient value.
|
|
* @param yy The sixth coefficient value.
|
|
* @param yz The seventh coefficient value.
|
|
* @param yw The eighth coefficient value.
|
|
* @param zx The nineth coefficient value.
|
|
* @param zy The tenth coefficient value.
|
|
* @param zz The eleventh coefficient value.
|
|
* @param zw The twelfth coefficient value.
|
|
* @param wx The thirteenth coefficient value.
|
|
* @param wy The fourteenth coefficient value.
|
|
* @param wz The fifteenth coefficient value.
|
|
* @param ww The sizteenth coefficient value.
|
|
*
|
|
* This function sets the values of the coefficients of the matrix
|
|
* @p m. No check is done on @p m.
|
|
*
|
|
* @see eina_matrix4_values_get()
|
|
*
|
|
* @since 1.15
|
|
*/
|
|
EAPI void eina_matrix4_values_set(Eina_Matrix4 *m,
|
|
double xx, double xy, double xz, double xw,
|
|
double yx, double yy, double yz, double yw,
|
|
double zx, double zy, double zz, double zw,
|
|
double wx, double wy, double wz, double ww);
|
|
|
|
/**
|
|
* @brief Gets the values of the coefficients of the given floating
|
|
* point matrix.
|
|
*
|
|
* @param m The floating point matrix.
|
|
* @param xx The first coefficient value.
|
|
* @param xy The second coefficient value.
|
|
* @param xz The third coefficient value.
|
|
* @param xw The fourth coefficient value.
|
|
* @param yx The fifth coefficient value.
|
|
* @param yy The sixth coefficient value.
|
|
* @param yz The seventh coefficient value.
|
|
* @param yw The eighth coefficient value.
|
|
* @param zx The nineth coefficient value.
|
|
* @param zy The tenth coefficient value.
|
|
* @param zz The eleventh coefficient value.
|
|
* @param zw The twelfth coefficient value.
|
|
* @param wx The thirteenth coefficient value.
|
|
* @param wy The fourteenth coefficient value.
|
|
* @param wz The fifteenth coefficient value.
|
|
* @param ww The sizteenth coefficient value.
|
|
*
|
|
* This function gets the values of the coefficients of the matrix
|
|
* @p m. No check is done on @p m.
|
|
*
|
|
* @see eina_matrix4_values_set()
|
|
*
|
|
* @since 1.15
|
|
*/
|
|
EAPI void eina_matrix4_values_get(const Eina_Matrix4 *m,
|
|
double *xx, double *xy, double *xz, double *xw,
|
|
double *yx, double *yy, double *yz, double *yw,
|
|
double *zx, double *zy, double *zz, double *zw,
|
|
double *wx, double *wy, double *wz, double *ww);
|
|
|
|
/**
|
|
* @brief Returns the determinant of the given matrix.
|
|
*
|
|
* @param m The matrix.
|
|
* @return The determinant.
|
|
*
|
|
* This function returns the determinant of the matrix @p m. No check
|
|
* is done on @p m.
|
|
*
|
|
* @since 1.16
|
|
*/
|
|
EAPI double eina_matrix4_determinant(const Eina_Matrix4 *m);
|
|
|
|
/**
|
|
* @brief Returns the determinant of the given matrix.
|
|
*
|
|
* @param out The normalized matrix
|
|
* @param in The matrix.
|
|
* @return The determinant.
|
|
*
|
|
* This function returns the determinant of the matrix @p in. No check
|
|
* is done on @p in.
|
|
*
|
|
* @since 1.16
|
|
*/
|
|
EAPI Eina_Bool eina_matrix4_normalized(Eina_Matrix4 *out,
|
|
const Eina_Matrix4 *in);
|
|
|
|
/**
|
|
* @brief Returns the inverse of the given matrix.
|
|
*
|
|
* @param out The inverse matrix
|
|
* @param in The matrix.
|
|
* @return @c EINA_TRUE on success, @c EINA_FALSE otherwise.
|
|
*
|
|
* @since 1.16
|
|
*/
|
|
EAPI Eina_Bool eina_matrix4_inverse(Eina_Matrix4 *out, const Eina_Matrix4 *in);
|
|
|
|
/**
|
|
* @brief Returns the transpose of the given matrix.
|
|
*
|
|
* @param out The transpose matrix
|
|
* @param in The matrix.
|
|
*
|
|
* Just going to swap row and column.
|
|
*
|
|
* @since 1.16
|
|
*/
|
|
EAPI void eina_matrix4_transpose(Eina_Matrix4 *out, const Eina_Matrix4 *in);
|
|
|
|
/**
|
|
* @brief Converts an Eina_Matrix4 into an Eina_Matrix3.
|
|
*
|
|
* @param m3 The destination Eina_Matrix3.
|
|
* @param m4 The source Eina_Matrix4.
|
|
*
|
|
* @since 1.15
|
|
*/
|
|
EAPI void eina_matrix4_matrix3_to(Eina_Matrix3 *m3, const Eina_Matrix4 *m4);
|
|
|
|
/**
|
|
* @brief Sets an identity matrix
|
|
*
|
|
* @param out The matrix to set
|
|
*
|
|
* @since 1.16
|
|
*/
|
|
EAPI void eina_matrix4_identity(Eina_Matrix4 *out);
|
|
|
|
/**
|
|
* @brief Multiplies two matrix.
|
|
*
|
|
* @param out The resulting matrix
|
|
* @param mat_a The first member of the multiplication
|
|
* @param mat_b The second member of the multiplication
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix4_multiply_copy(Eina_Matrix4 *out,
|
|
const Eina_Matrix4 *mat_a, const Eina_Matrix4 *mat_b);
|
|
|
|
/**
|
|
* @brief Sets array to matrix.
|
|
*
|
|
* @param m The result matrix
|
|
* @param v The the array[16] for set
|
|
*
|
|
* Set to matrix first 16 elements from array
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix4_array_set(Eina_Matrix4 *m, const double *v);
|
|
|
|
/**
|
|
* @brief Copies matrix.
|
|
*
|
|
* @param dst The matrix copy
|
|
* @param src The matrix for copy.
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix4_copy(Eina_Matrix4 *dst, const Eina_Matrix4 *src);
|
|
|
|
/**
|
|
* @brief Multiplies two matrices with check.
|
|
*
|
|
* @param out The resulting matrix
|
|
* @param mat_a The first member of the multiplication
|
|
* @param mat_b The second member of the multiplication
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix4_multiply(Eina_Matrix4 *out, const Eina_Matrix4 *mat_a,
|
|
const Eina_Matrix4 *mat_b);
|
|
|
|
/**
|
|
* @brief Sets orthogonality matrix.
|
|
*
|
|
* @param m The resulting matrix
|
|
* @param right The right value
|
|
* @param left The left value
|
|
* @param bottom The bottom value
|
|
* @param top The top value
|
|
* @param dnear The dnear value
|
|
* @param dfar The dfar value
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix4_ortho_set(Eina_Matrix4 *m,
|
|
double left, double right, double bottom, double top,
|
|
double dnear, double dfar);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
|
|
/**
|
|
* @defgroup Eina_Matrix2_Group 2x2 Matrices in floating point
|
|
*
|
|
* @brief Matrix definition and operations
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @typedef Eina_Matrix2
|
|
* Floating point matrix2 handler
|
|
*/
|
|
typedef struct _Eina_Matrix2 Eina_Matrix2;
|
|
|
|
/**
|
|
* @struct Eina_Matrix2
|
|
* Floating point matrix2 handler
|
|
*/
|
|
struct _Eina_Matrix2
|
|
{
|
|
double xx;
|
|
double xy;
|
|
|
|
double yx;
|
|
double yy;
|
|
};
|
|
|
|
/**
|
|
* @brief Sets the values of the coefficients of the given floating
|
|
* point matrix.
|
|
*
|
|
* @param m The floating point matrix.
|
|
* @param xx The first coefficient value.
|
|
* @param xy The second coefficient value.
|
|
* @param yx The fourth coefficient value.
|
|
* @param yy The fifth coefficient value.
|
|
*
|
|
* This function sets the values of the coefficients of the matrix
|
|
* @p m. No check is done on @p m.
|
|
*
|
|
* @see eina_matrix2_values_get()
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix2_values_set(Eina_Matrix2 *m, double xx, double xy,
|
|
double yx, double yy);
|
|
|
|
/**
|
|
* @brief Gets the values of the coefficients of the given floating
|
|
* point matrix.
|
|
*
|
|
* @param m The floating point matrix.
|
|
* @param xx The first coefficient value.
|
|
* @param xy The second coefficient value.
|
|
* @param yx The fourth coefficient value.
|
|
* @param yy The fifth coefficient value.
|
|
*
|
|
* This function gets the values of the coefficients of the matrix
|
|
* @p m. No check is done on @p m.
|
|
*
|
|
* @see eina_matrix2_values_set()
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix2_values_get(const Eina_Matrix2 *m, double *xx, double *xy,
|
|
double *yx, double *yy);
|
|
|
|
/**
|
|
* @brief Computes the inverse with check of the given matrix.
|
|
*
|
|
* @param out The matrix to inverse.
|
|
* @param mat The inverse matrix.
|
|
*
|
|
* This function inverse the matrix @p out and stores the result in
|
|
* @p mat. No check is done on @p out or @p mat. If @p out can not be
|
|
* invertible, then @p mat is set to the identity matrix.
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix2_inverse(Eina_Matrix2 *out, const Eina_Matrix2 *mat);
|
|
|
|
/**
|
|
* @brief Sets the given floating point matrix to the identity matrix.
|
|
*
|
|
* @param m The floating point matrix to set
|
|
*
|
|
* This function sets @p m to the identity matrix. No check is done on
|
|
* @p m.
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix2_identity(Eina_Matrix2 *m);
|
|
|
|
/**
|
|
* @brief Sets array to matrix.
|
|
*
|
|
* @param m The result matrix
|
|
* @param v The the array[4] for set
|
|
*
|
|
* Set to matrix first 4 elements from array
|
|
*
|
|
* @since 1.17
|
|
*/
|
|
EAPI void eina_matrix2_array_set(Eina_Matrix2 *m, const double *v);
|
|
|
|
/**
|
|
* @brief Copies matrix.
|
|
*
|
|
* @param dst The matrix copy
|
|
* @param src The matrix for copy.
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*
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* @since 1.17
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*/
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EAPI void eina_matrix2_copy(Eina_Matrix2 *dst, const Eina_Matrix2 *src);
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/**
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* @brief Multiplies two matrices.
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*
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* @param out The resulting matrix
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* @param mat_a The first member of the multiplication
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* @param mat_b The second member of the multiplication
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*
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* @since 1.17
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*/
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EAPI void eina_matrix2_multiply(Eina_Matrix2 *out, const Eina_Matrix2 *mat_a,
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const Eina_Matrix2 *mat_b);
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/**
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* @brief Multiplies two matrices with check.
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*
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* @param out The resulting matrix
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* @param mat_a The first member of the multiplication
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* @param mat_b The second member of the multiplication
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*
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* @since 1.17
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*/
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EAPI void eina_matrix2_multiply_copy(Eina_Matrix2 *out, const Eina_Matrix2 *mat_a,
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const Eina_Matrix2 *mat_b);
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/**
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* @brief Returns the type of the given floating point matrix.
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*
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* @param m The floating point matrix.
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* @return The type of the matrix.
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*
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* This function returns the type of the matrix @p m. No check is done
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* on @p m.
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*
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* @since 1.17
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*/
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EAPI Eina_Matrix_Type eina_matrix2_type_get(const Eina_Matrix2 *m);
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/**
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* @}
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*/
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|
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/**
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* @}
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*/
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|
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/**
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* @}
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*/
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#endif /*EINA_MATRIX3_H_*/
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