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bufferContextChain.h
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55 lines (43 loc) · 1.31 KB
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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file bufferContextChain.h
* @author drose
* @date 2006-03-16
*/
#ifndef BUFFERCONTEXTCHAIN_H
#define BUFFERCONTEXTCHAIN_H
#include "pandabase.h"
#include "linkedListNode.h"
class BufferContext;
/**
* This class maintains a linked list of BufferContexts that might be
* allocated on the graphics card in some context. There is a different
* BufferContextChain for resident textures, active textures, evicted
* textures, etc.
*
* The primary purpose of this class is to facilitate PStats reporting of
* graphics memory usage.
*/
class EXPCL_PANDA_GOBJ BufferContextChain : private LinkedListNode {
public:
INLINE BufferContextChain();
INLINE ~BufferContextChain();
INLINE size_t get_total_size() const;
INLINE int get_count() const;
BufferContext *get_first();
void take_from(BufferContextChain &other);
void write(std::ostream &out, int indent_level) const;
private:
INLINE void adjust_bytes(int delta);
size_t _total_size;
int _count;
friend class BufferContext;
};
#include "bufferContextChain.I"
#endif