3x3 Matrices in fixed point

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Definition and operations for 3x3 fixed point matrices.

Functions
void	eina_matrix3_f16p16_identity (Eina_Matrix3_F16p16 *m)
	Sets the given fixed point matrix to the identity matrix.
void	eina_matrix3_f16p16_compose (const Eina_Matrix3_F16p16 *m1, const Eina_Matrix3_F16p16 *m2, Eina_Matrix3_F16p16 *dst)
	Sets dst as the matrix multiplication (composition) of two Eina_F16p16 matrices.
Eina_Matrix_Type	eina_matrix3_f16p16_type_get (const Eina_Matrix3_F16p16 *m)
	Returns the type of the given fixed point matrix.
Typedefs
typedef struct _Eina_Matrix3_F16p16	Eina_Matrix3_F16p16

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Typedef Documentation

Eina_Matrix3_F16p16

A 3x3 fixed point (Q16.16) matrix.

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Function Documentation

void eina_matrix3_f16p16_compose	(	const Eina_Matrix3_F16p16 *	m1,
		const Eina_Matrix3_F16p16 *	m2,
		Eina_Matrix3_F16p16 *	dst
	)

Sets dst as the matrix multiplication (composition) of two Eina_F16p16 matrices.

Parameters:

[in]	m1	The first matrix. Must be non-NULL.
[in]	m2	The second matrix. Must be non-NULL.
[out]	dst	The results matrix.

In matrix multiplication, AB, the resultant matrix is created from the rows of A multiplied against the columns of B and summed. This is not a commutative; i.e. AB != BA, so the ordering of arguments m1 and m2 matters.

Since (EFL) :

1.14

Since :

3.0f(2.3.1)

void eina_matrix3_f16p16_identity

(

Eina_Matrix3_F16p16 *

m

)

Sets the given fixed point matrix to the identity matrix.

Parameters:

[in]

m

The fixed point matrix to set.

This function sets m to the identity matrix. No check is done on m.

Since (EFL) :

1.14

Since :

3.0f(2.3.1)

Eina_Matrix_Type eina_matrix3_f16p16_type_get

(

const Eina_Matrix3_F16p16 *

m

)

Returns the type of the given fixed point matrix.

Parameters:

[in]

m

The fixed point matrix.

Returns:

The type of the matrix.

This function returns the type of the matrix m. No check is done on m.

Since (EFL) :

1.14

Since :

3.0f(2.3.1)