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534e535a28
This removes cogl-queue.h and adds a copy of Wayland's embedded list implementation. The advantage of the Wayland model is that it is much simpler and so it is easier to follow. It also doesn't require defining a typedef for every list type. The downside is that there is only one list type which is a doubly-linked list where the head has a pointer to both the beginning and the end. The BSD implementation has many more combinations some of which we were taking advantage of to reduce the size of critical structs where we didn't need a pointer to the end of the list. The corresponding changes to uses of cogl-queue.h are: • COGL_STAILQ_* was used for onscreen the list of events and dirty notifications. This makes the size of the CoglContext grow by one pointer. • COGL_TAILQ_* was used for fences. • COGL_LIST_* for CoglClosures. In this case the list head now has an extra pointer which means CoglOnscreen will grow by the size of three pointers, but this doesn't seem like a particularly important struct to optimise for size anyway. • COGL_LIST_* was used for the list of foreign GLES2 offscreens. • COGL_TAILQ_* was used for the list of sub stacks in a CoglMemoryStack. • COGL_LIST_* was used to track the list of layers that haven't had code generated yet while generating a fragment shader for a pipeline. • COGL_LIST_* was used to track the pipeline hierarchy in CoglNode. The last part is a bit more controversial because it increases the size of CoglPipeline and CoglPipelineLayer by one pointer in order to have the redundant tail pointer for the list head. Normally we try to be very careful about the size of the CoglPipeline struct. Because CoglPipeline is slice-allocated, this effectively ends up adding two pointers to the size because GSlice rounds up to the size of two pointers. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 13abf613b15f571ba1fcf6d2eb831ffc6fa31324) Conflicts: cogl/cogl-context-private.h cogl/cogl-context.c cogl/driver/gl/cogl-pipeline-fragend-glsl.c doc/reference/cogl-2.0-experimental/Makefile.am
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2008,2009,2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#ifndef __COGL_NODE_PRIVATE_H
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#define __COGL_NODE_PRIVATE_H
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#include "cogl-object-private.h"
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#include "cogl-list.h"
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typedef struct _CoglNode CoglNode;
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/* Pipelines and layers represent their state in a tree structure where
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* some of the state relating to a given pipeline or layer may actually
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* be owned by one if is ancestors in the tree. We have a common data
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* type to track the tree heirachy so we can share code... */
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struct _CoglNode
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{
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/* the parent in terms of class hierarchy, so anything inheriting
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* from CoglNode also inherits from CoglObject. */
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CoglObject _parent;
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/* The parent pipeline/layer */
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CoglNode *parent;
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/* The list entry here contains pointers to the node's siblings */
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CoglList link;
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/* List of children */
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CoglList children;
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/* TRUE if the node took a strong reference on its parent. Weak
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* pipelines for instance don't take a reference on their parent. */
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CoglBool has_parent_reference;
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};
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#define COGL_NODE(X) ((CoglNode *)(X))
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void
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_cogl_pipeline_node_init (CoglNode *node);
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typedef void (*CoglNodeUnparentVFunc) (CoglNode *node);
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void
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_cogl_pipeline_node_set_parent_real (CoglNode *node,
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CoglNode *parent,
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CoglNodeUnparentVFunc unparent,
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CoglBool take_strong_reference);
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void
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_cogl_pipeline_node_unparent_real (CoglNode *node);
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typedef CoglBool (*CoglNodeChildCallback) (CoglNode *child, void *user_data);
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void
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_cogl_pipeline_node_foreach_child (CoglNode *node,
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CoglNodeChildCallback callback,
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void *user_data);
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#endif /* __COGL_NODE_PRIVATE_H */
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