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cogl/matrix: Transpose using graphene matrices

Browse Source 
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1439
This commit is contained in:
Georges Basile Stavracas Neto 2020-09-10 10:55:16 -03:00
parent 0dbd6d3a80
commit dad710adaa
1 changed files with 6 additions and 30 deletions
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36
cogl/cogl/cogl-matrix.c
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@ -1584,30 +1584,6 @@ cogl_matrix_init_from_euler (CoglMatrix *matrix,
matrix->flags = (MAT_FLAG_GENERAL | MAT_DIRTY_ALL);
}
/*
* Transpose a float matrix.
*/
static void
_cogl_matrix_util_transposef (float to[16], const float from[16])
{
to[0] = from[0];
to[1] = from[4];
to[2] = from[8];
to[3] = from[12];
to[4] = from[1];
to[5] = from[5];
to[6] = from[9];
to[7] = from[13];
to[8] = from[2];
to[9] = from[6];
to[10] = from[10];
to[11] = from[14];
to[12] = from[3];
to[13] = from[7];
to[14] = from[11];
to[15] = from[15];
}
void
cogl_matrix_view_2d_in_frustum (CoglMatrix *matrix,
float left,
@ -1967,16 +1943,16 @@ cogl_matrix_look_at (CoglMatrix *matrix,
void
cogl_matrix_transpose (CoglMatrix *matrix)
{
float new_values[16];
graphene_matrix_t m;
cogl_matrix_to_graphene_matrix (matrix, &m);
/* We don't need to do anything if the matrix is the identity matrix */
if (!(matrix->flags & MAT_DIRTY_TYPE) &&
matrix->type == COGL_MATRIX_TYPE_IDENTITY)
if (graphene_matrix_is_identity (&m))
return;
_cogl_matrix_util_transposef (new_values, cogl_matrix_get_array (matrix));
cogl_matrix_init_from_array (matrix, new_values);
graphene_matrix_transpose (&m, &m);
graphene_matrix_to_cogl_matrix (&m, matrix);
}
GType