295 lines
8.3 KiB
C++
295 lines
8.3 KiB
C++
/*
|
|
Open Asset Import Library (assimp)
|
|
----------------------------------------------------------------------
|
|
|
|
Copyright (c) 2006-2015, assimp team
|
|
All rights reserved.
|
|
|
|
Redistribution and use of this software in source and binary forms,
|
|
with or without modification, are permitted provided that the
|
|
following conditions are met:
|
|
|
|
* Redistributions of source code must retain the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above
|
|
copyright notice, this list of conditions and the
|
|
following disclaimer in the documentation and/or other
|
|
materials provided with the distribution.
|
|
|
|
* Neither the name of the assimp team, nor the names of its
|
|
contributors may be used to endorse or promote products
|
|
derived from this software without specific prior
|
|
written permission of the assimp team.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
----------------------------------------------------------------------
|
|
*/
|
|
|
|
/** @file Base class of all import post processing steps */
|
|
#ifndef INCLUDED_AI_BASEPROCESS_H
|
|
#define INCLUDED_AI_BASEPROCESS_H
|
|
|
|
#include <map>
|
|
|
|
#include "../include/assimp/types.h"
|
|
#include "GenericProperty.h"
|
|
|
|
struct aiScene;
|
|
|
|
namespace Assimp {
|
|
|
|
class Importer;
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** Helper class to allow post-processing steps to interact with each other.
|
|
*
|
|
* The class maintains a simple property list that can be used by pp-steps
|
|
* to provide additional information to other steps. This is primarily
|
|
* intended for cross-step optimizations.
|
|
*/
|
|
class SharedPostProcessInfo
|
|
{
|
|
public:
|
|
|
|
struct Base
|
|
{
|
|
virtual ~Base()
|
|
{}
|
|
};
|
|
|
|
//! Represents data that is allocated on the heap, thus needs to be deleted
|
|
template <typename T>
|
|
struct THeapData : public Base
|
|
{
|
|
THeapData(T* in)
|
|
: data (in)
|
|
{}
|
|
|
|
~THeapData()
|
|
{
|
|
delete data;
|
|
}
|
|
T* data;
|
|
};
|
|
|
|
//! Represents static, by-value data not allocated on the heap
|
|
template <typename T>
|
|
struct TStaticData : public Base
|
|
{
|
|
TStaticData(T in)
|
|
: data (in)
|
|
{}
|
|
|
|
~TStaticData()
|
|
{}
|
|
|
|
T data;
|
|
};
|
|
|
|
// some typedefs for cleaner code
|
|
typedef unsigned int KeyType;
|
|
typedef std::map<KeyType, Base*> PropertyMap;
|
|
|
|
public:
|
|
|
|
//! Destructor
|
|
~SharedPostProcessInfo()
|
|
{
|
|
Clean();
|
|
}
|
|
|
|
//! Remove all stored properties from the table
|
|
void Clean()
|
|
{
|
|
// invoke the virtual destructor for all stored properties
|
|
for (PropertyMap::iterator it = pmap.begin(), end = pmap.end();
|
|
it != end; ++it)
|
|
{
|
|
delete (*it).second;
|
|
}
|
|
pmap.clear();
|
|
}
|
|
|
|
//! Add a heap property to the list
|
|
template <typename T>
|
|
void AddProperty( const char* name, T* in ){
|
|
AddProperty(name,(Base*)new THeapData<T>(in));
|
|
}
|
|
|
|
//! Add a static by-value property to the list
|
|
template <typename T>
|
|
void AddProperty( const char* name, T in ){
|
|
AddProperty(name,(Base*)new TStaticData<T>(in));
|
|
}
|
|
|
|
|
|
//! Get a heap property
|
|
template <typename T>
|
|
bool GetProperty( const char* name, T*& out ) const
|
|
{
|
|
THeapData<T>* t = (THeapData<T>*)GetPropertyInternal(name);
|
|
if(!t)
|
|
{
|
|
out = NULL;
|
|
return false;
|
|
}
|
|
out = t->data;
|
|
return true;
|
|
}
|
|
|
|
//! Get a static, by-value property
|
|
template <typename T>
|
|
bool GetProperty( const char* name, T& out ) const
|
|
{
|
|
TStaticData<T>* t = (TStaticData<T>*)GetPropertyInternal(name);
|
|
if(!t)return false;
|
|
out = t->data;
|
|
return true;
|
|
}
|
|
|
|
//! Remove a property of a specific type
|
|
void RemoveProperty( const char* name) {
|
|
SetGenericPropertyPtr<Base>(pmap,name,NULL);
|
|
}
|
|
|
|
private:
|
|
|
|
void AddProperty( const char* name, Base* data) {
|
|
SetGenericPropertyPtr<Base>(pmap,name,data);
|
|
}
|
|
|
|
Base* GetPropertyInternal( const char* name) const {
|
|
return GetGenericProperty<Base*>(pmap,name,NULL);
|
|
}
|
|
|
|
private:
|
|
|
|
//! Map of all stored properties
|
|
PropertyMap pmap;
|
|
};
|
|
|
|
#if 0
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** @brief Represents a dependency table for a postprocessing steps.
|
|
*
|
|
* For future use.
|
|
*/
|
|
struct PPDependencyTable
|
|
{
|
|
unsigned int execute_me_before_these;
|
|
unsigned int execute_me_after_these;
|
|
unsigned int only_if_these_are_not_specified;
|
|
unsigned int mutually_exclusive_with;
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
#define AI_SPP_SPATIAL_SORT "$Spat"
|
|
|
|
// ---------------------------------------------------------------------------
|
|
/** The BaseProcess defines a common interface for all post processing steps.
|
|
* A post processing step is run after a successful import if the caller
|
|
* specified the corresponding flag when calling ReadFile().
|
|
* Enum #aiPostProcessSteps defines which flags are available.
|
|
* After a successful import the Importer iterates over its internal array
|
|
* of processes and calls IsActive() on each process to evaluate if the step
|
|
* should be executed. If the function returns true, the class' Execute()
|
|
* function is called subsequently.
|
|
*/
|
|
class ASSIMP_API_WINONLY BaseProcess
|
|
{
|
|
friend class Importer;
|
|
|
|
public:
|
|
|
|
/** Constructor to be privately used by Importer */
|
|
BaseProcess();
|
|
|
|
/** Destructor, private as well */
|
|
virtual ~BaseProcess();
|
|
|
|
public:
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Returns whether the processing step is present in the given flag.
|
|
* @param pFlags The processing flags the importer was called with. A
|
|
* bitwise combination of #aiPostProcessSteps.
|
|
* @return true if the process is present in this flag fields,
|
|
* false if not.
|
|
*/
|
|
virtual bool IsActive( unsigned int pFlags) const = 0;
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Check whether this step expects its input vertex data to be
|
|
* in verbose format. */
|
|
virtual bool RequireVerboseFormat() const;
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Executes the post processing step on the given imported data.
|
|
* The function deletes the scene if the postprocess step fails (
|
|
* the object pointer will be set to NULL).
|
|
* @param pImp Importer instance (pImp->mScene must be valid)
|
|
*/
|
|
void ExecuteOnScene( Importer* pImp);
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Called prior to ExecuteOnScene().
|
|
* The function is a request to the process to update its configuration
|
|
* basing on the Importer's configuration property list.
|
|
*/
|
|
virtual void SetupProperties(const Importer* pImp);
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Executes the post processing step on the given imported data.
|
|
* A process should throw an ImportErrorException* if it fails.
|
|
* This method must be implemented by deriving classes.
|
|
* @param pScene The imported data to work at.
|
|
*/
|
|
virtual void Execute( aiScene* pScene) = 0;
|
|
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Assign a new SharedPostProcessInfo to the step. This object
|
|
* allows multiple postprocess steps to share data.
|
|
* @param sh May be NULL
|
|
*/
|
|
inline void SetSharedData(SharedPostProcessInfo* sh) {
|
|
shared = sh;
|
|
}
|
|
|
|
// -------------------------------------------------------------------
|
|
/** Get the shared data that is assigned to the step.
|
|
*/
|
|
inline SharedPostProcessInfo* GetSharedData() {
|
|
return shared;
|
|
}
|
|
|
|
protected:
|
|
|
|
/** See the doc of #SharedPostProcessInfo for more details */
|
|
SharedPostProcessInfo* shared;
|
|
|
|
/** Currently active progress handler */
|
|
ProgressHandler* progress;
|
|
};
|
|
|
|
|
|
} // end of namespace Assimp
|
|
|
|
#endif // AI_BASEPROCESS_H_INC
|