float *
c_vector4_copy (float *vector)
{
if (vector)
return c_slice_copy(sizeof(float) * 4, vector);
return NULL;
}
float *
c_vector3_copy(const float *vector)
{
if (vector)
return c_slice_copy(sizeof(float) * 3, vector);
return NULL;
}
void
rut_mesh_set_attributes(rut_mesh_t *mesh,
rut_attribute_t **attributes,
int n_attributes)
{
rut_attribute_t **attributes_real = attributes ?
c_slice_copy(sizeof(void *) * n_attributes, attributes) : NULL;
int i;
/* NB: some of the given attributes may be the same as
* some of the current attributes so we ref before
* unrefing to avoid destroying any of them. */
for (i = 0; i < n_attributes; i++)
rut_object_ref(attributes[i]);
for (i = 0; i < mesh->n_attributes; i++)
rut_object_unref(mesh->attributes[i]);
mesh->attributes = attributes_real;
mesh->n_attributes = n_attributes;
}
