mutter/cogl/cogl-node-private.h
Robert Bragg d4459e2d42 pipeline: Split more code out from cogl-pipeline.c
This splits out the core CoglPipelineLayer support code from
cogl-pipeline.c into cogl-pipeline-layer.c; it splits out the debugging
code for dumping a pipeline to a .dot file into cogl-pipeline-debug.c
and it splits the CoglPipelineNode support which is shared between
CoglPipeline and CoglPipelineLayer into cogl-node.c.

Note: cogl-pipeline-layer.c only contains the layer code directly
relating to CoglPipelineLayer objects; it does not contain any
_cogl_pipeline API relating to how CoglPipeline tracks and manipulates
layers.
2011-09-21 17:03:10 +01:00

86 lines
2.6 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2008,2009,2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifndef __COGL_NODE_PRIVATE_H
#define __COGL_NODE_PRIVATE_H
#include "cogl-object-private.h"
#include "cogl-queue.h"
typedef struct _CoglNode CoglNode;
COGL_LIST_HEAD (CoglNodeList, CoglNode);
/* Pipelines and layers represent their state in a tree structure where
* some of the state relating to a given pipeline or layer may actually
* be owned by one if is ancestors in the tree. We have a common data
* type to track the tree heirachy so we can share code... */
struct _CoglNode
{
/* the parent in terms of class hierarchy, so anything inheriting
* from CoglNode also inherits from CoglObject. */
CoglObject _parent;
/* The parent pipeline/layer */
CoglNode *parent;
/* The list entry here contains pointers to the node's siblings */
COGL_LIST_ENTRY (CoglNode) list_node;
/* List of children */
CoglNodeList children;
/* TRUE if the node took a strong reference on its parent. Weak
* pipelines for instance don't take a reference on their parent. */
gboolean has_parent_reference;
};
#define COGL_NODE(X) ((CoglNode *)(X))
void
_cogl_pipeline_node_init (CoglNode *node);
typedef void (*CoglNodeUnparentVFunc) (CoglNode *node);
void
_cogl_pipeline_node_set_parent_real (CoglNode *node,
CoglNode *parent,
CoglNodeUnparentVFunc unparent,
gboolean take_strong_reference);
void
_cogl_pipeline_node_unparent_real (CoglNode *node);
typedef gboolean (*CoglNodeChildCallback) (CoglNode *child, void *user_data);
void
_cogl_pipeline_node_foreach_child (CoglNode *node,
CoglNodeChildCallback callback,
void *user_data);
#endif /* __COGL_NODE_PRIVATE_H */