int
cogl_primitive_get_n_vertices (CoglPrimitive *primitive)
{
_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), 0);
return primitive->n_vertices;
}
CoglVerticesMode
cogl_primitive_get_mode (CoglPrimitive *primitive)
{
_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), 0);
return primitive->mode;
}
int
cogl_primitive_get_first_vertex (CoglPrimitive *primitive)
{
_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), 0);
return primitive->first_vertex;
}
void
cogl_primitive_set_n_vertices (CoglPrimitive *primitive,
int n_vertices)
{
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
primitive->n_vertices = n_vertices;
}
void
cogl_primitive_set_attributes (CoglPrimitive *primitive,
CoglAttribute **attributes,
int n_attributes)
{
int i;
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
if (G_UNLIKELY (primitive->immutable_ref))
{
warn_about_midscene_changes ();
return;
}
/* NB: we don't unref the previous attributes before refing the new
* in case we would end up releasing the last reference for an
* attribute thats actually in the new list too. */
for (i = 0; i < n_attributes; i++)
{
_COGL_RETURN_IF_FAIL (cogl_is_attribute (attributes[i]));
cogl_object_ref (attributes[i]);
}
for (i = 0; i < primitive->n_attributes; i++)
cogl_object_unref (primitive->attributes[i]);
/* First try to use the embedded storage assocated with the
* primitive, else fallback to slice allocating separate storage for
* the attribute pointers... */
if (n_attributes <= primitive->n_embedded_attributes)
{
if (primitive->attributes != &primitive->embedded_attribute)
g_slice_free1 (sizeof (CoglAttribute *) * primitive->n_attributes,
primitive->attributes);
primitive->attributes = &primitive->embedded_attribute;
}
else
{
if (primitive->attributes != &primitive->embedded_attribute)
g_slice_free1 (sizeof (CoglAttribute *) * primitive->n_attributes,
primitive->attributes);
primitive->attributes =
g_slice_alloc (sizeof (CoglAttribute *) * n_attributes);
}
memcpy (primitive->attributes, attributes,
sizeof (CoglAttribute *) * n_attributes);
primitive->n_attributes = n_attributes;
}
void
_cogl_primitive_immutable_unref (CoglPrimitive *primitive)
{
int i;
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
_COGL_RETURN_IF_FAIL (primitive->immutable_ref > 0);
primitive->immutable_ref--;
for (i = 0; i < primitive->n_attributes; i++)
_cogl_attribute_immutable_unref (primitive->attributes[i]);
}
CoglPrimitive *
_cogl_primitive_immutable_ref (CoglPrimitive *primitive)
{
int i;
_COGL_RETURN_VAL_IF_FAIL (cogl_is_primitive (primitive), NULL);
primitive->immutable_ref++;
for (i = 0; i < primitive->n_attributes; i++)
_cogl_attribute_immutable_ref (primitive->attributes[i]);
return primitive;
}
void
cogl_primitive_set_mode (CoglPrimitive *primitive,
CoglVerticesMode mode)
{
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
if (G_UNLIKELY (primitive->immutable_ref))
{
warn_about_midscene_changes ();
return;
}
primitive->mode = mode;
}
void
cogl_primitive_set_first_vertex (CoglPrimitive *primitive,
int first_vertex)
{
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
if (G_UNLIKELY (primitive->immutable_ref))
{
warn_about_midscene_changes ();
return;
}
primitive->first_vertex = first_vertex;
}
/**
* clutter_paint_node_add_primitive:
* @node: a #ClutterPaintNode
* @primitive: a Cogl primitive
*
* Adds a region described by a Cogl primitive to the @node.
*
* This function acquires a reference on @primitive, so it is safe
* to call cogl_object_unref() when it returns.
*
*
*/
void
clutter_paint_node_add_primitive (ClutterPaintNode *node,
CoglPrimitive *primitive)
{
ClutterPaintOperation operation = PAINT_OP_INIT;
g_return_if_fail (CLUTTER_IS_PAINT_NODE (node));
g_return_if_fail (cogl_is_primitive (primitive));
clutter_paint_node_maybe_init_operations (node);
clutter_paint_op_init_primitive (&operation, primitive);
g_array_append_val (node->operations, operation);
}
void
cogl_primitive_set_indices (CoglPrimitive *primitive,
CoglIndices *indices,
int n_indices)
{
_COGL_RETURN_IF_FAIL (cogl_is_primitive (primitive));
if (G_UNLIKELY (primitive->immutable_ref))
{
warn_about_midscene_changes ();
return;
}
if (indices)
cogl_object_ref (indices);
if (primitive->indices)
cogl_object_unref (primitive->indices);
primitive->indices = indices;
primitive->n_vertices = n_indices;
}