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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* Copyright 2009-2011 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* Audaspace is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* AudaSpace 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Audaspace; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file audaspace/intern/AUD_AnimateableProperty.h
* \ingroup audaspaceintern
*/
#ifndef __AUD_ANIMATEABLEPROPERTY_H__
#define __AUD_ANIMATEABLEPROPERTY_H__
#include "AUD_Buffer.h"
#include "AUD_ILockable.h"
#include <pthread.h>
#include <list>
/**
* This class saves animation data for float properties.
*/
class AUD_AnimateableProperty : private AUD_Buffer, public AUD_ILockable
{
private:
struct Unknown {
int start;
int end;
Unknown(int start, int end) :
start(start), end(end) {}
};
/// The count of floats for a single property.
const int m_count;
/// Whether the property is animated or not.
bool m_isAnimated;
/// The mutex for locking.
pthread_mutex_t m_mutex;
/// The list of unknown buffer areas.
std::list<Unknown> m_unknown;
// hide copy constructor and operator=
AUD_AnimateableProperty(const AUD_AnimateableProperty&);
AUD_AnimateableProperty& operator=(const AUD_AnimateableProperty&);
void updateUnknownCache(int start, int end);
public:
/**
* Creates a new animateable property.
* \param count The count of floats for a single property.
*/
AUD_AnimateableProperty(int count = 1);
/**
* Creates a new animateable property.
* \param count The count of floats for a single property.
* \param count The value that the property should get initialized with. All count floats will be initialized to the same value.
*/
AUD_AnimateableProperty(int count, float value);
/**
* Destroys the animateable property.
*/
~AUD_AnimateableProperty();
/**
* Locks the property.
*/
virtual void lock();
/**
* Unlocks the previously locked property.
*/
virtual void unlock();
/**
* Writes the properties value and marks it non-animated.
* \param data The new value.
*/
void write(const float* data);
/**
* Writes the properties value and marks it animated.
* \param data The new value.
* \param position The position in the animation in frames.
* \param count The count of frames to write.
*/
void write(const float* data, int position, int count);
/**
* Reads the properties value.
* \param position The position in the animation in frames.
* \param[out] out Where to write the value to.
*/
void read(float position, float* out);
/**
* Returns whether the property is animated.
* \return Whether the property is animated.
*/
bool isAnimated() const;
};
#endif //__AUD_ANIMATEABLEPROPERTY_H__
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