107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/**
|
|
* 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 bufferContext.h
|
|
* @author drose
|
|
* @date 2006-03-16
|
|
*/
|
|
|
|
#ifndef BUFFERCONTEXT_H
|
|
#define BUFFERCONTEXT_H
|
|
|
|
#include "pandabase.h"
|
|
|
|
#include "savedContext.h"
|
|
#include "updateSeq.h"
|
|
#include "linkedListNode.h"
|
|
#include "bufferContextChain.h"
|
|
#include "bufferResidencyTracker.h"
|
|
|
|
class PreparedGraphicsObjects;
|
|
class TypedWritableReferenceCount;
|
|
|
|
/**
|
|
* This is a base class for those kinds of SavedContexts that occupy an
|
|
* easily-measured (and substantial) number of bytes in the video card's frame
|
|
* buffer memory or AGP memory. At the present, this includes most of the
|
|
* SavedContext types: VertexBufferContext and IndexBufferContext, as well as
|
|
* TextureContext.
|
|
*
|
|
* This class provides methods for tracking the video memory utilization, as
|
|
* well as residency of each object, via PStats.
|
|
*/
|
|
class EXPCL_PANDA_GOBJ BufferContext : public SavedContext, private LinkedListNode {
|
|
public:
|
|
BufferContext(BufferResidencyTracker *residency, TypedWritableReferenceCount *object);
|
|
virtual ~BufferContext();
|
|
|
|
INLINE TypedWritableReferenceCount *get_object() const;
|
|
|
|
PUBLISHED:
|
|
INLINE size_t get_data_size_bytes() const;
|
|
INLINE UpdateSeq get_modified() const;
|
|
INLINE bool get_active() const;
|
|
INLINE bool get_resident() const;
|
|
|
|
MAKE_PROPERTY(object, get_object);
|
|
|
|
MAKE_PROPERTY(data_size_bytes, get_data_size_bytes);
|
|
MAKE_PROPERTY(modified, get_modified);
|
|
MAKE_PROPERTY(active, get_active);
|
|
MAKE_PROPERTY(resident, get_resident);
|
|
|
|
public:
|
|
INLINE void set_active(bool flag);
|
|
INLINE void set_resident(bool flag);
|
|
|
|
INLINE BufferContext *get_next() const;
|
|
|
|
INLINE void update_data_size_bytes(size_t new_data_size_bytes);
|
|
INLINE void update_modified(UpdateSeq new_modified);
|
|
|
|
private:
|
|
void set_owning_chain(BufferContextChain *chain);
|
|
|
|
protected:
|
|
// This cannot be a PT(), because the object and the GSG both own their
|
|
// BufferContexts! That would create a circular reference count.
|
|
TypedWritableReferenceCount *_object;
|
|
|
|
private:
|
|
BufferResidencyTracker *_residency;
|
|
int _residency_state;
|
|
|
|
size_t _data_size_bytes;
|
|
UpdateSeq _modified;
|
|
BufferContextChain *_owning_chain;
|
|
|
|
public:
|
|
static TypeHandle get_class_type() {
|
|
return _type_handle;
|
|
}
|
|
static void init_type() {
|
|
SavedContext::init_type();
|
|
register_type(_type_handle, "BufferContext",
|
|
SavedContext::get_class_type());
|
|
}
|
|
virtual TypeHandle get_type() const {
|
|
return get_class_type();
|
|
}
|
|
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
|
|
|
|
private:
|
|
static TypeHandle _type_handle;
|
|
|
|
friend class PreparedGraphicsObjects;
|
|
friend class BufferResidencyTracker;
|
|
friend class BufferContextChain;
|
|
};
|
|
|
|
#include "bufferContext.I"
|
|
|
|
#endif
|