mirror of
https://github.com/opencv/opencv.git
synced 2024-12-27 11:28:14 +08:00
157 lines
3.9 KiB
C++
157 lines
3.9 KiB
C++
///////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
|
|
// Digital Ltd. LLC
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use 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 Industrial Light & Magic nor the names of
|
|
// its contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// 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.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
//
|
|
// class Attribute
|
|
//
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#include <ImfAttribute.h>
|
|
#include "IlmThreadMutex.h"
|
|
#include "Iex.h"
|
|
#include <string.h>
|
|
#include <map>
|
|
|
|
|
|
namespace Imf {
|
|
|
|
using IlmThread::Mutex;
|
|
using IlmThread::Lock;
|
|
|
|
|
|
Attribute::Attribute () {}
|
|
|
|
|
|
Attribute::~Attribute () {}
|
|
|
|
|
|
namespace {
|
|
|
|
struct NameCompare: std::binary_function <const char *, const char *, bool>
|
|
{
|
|
bool
|
|
operator () (const char *x, const char *y) const
|
|
{
|
|
return strcmp (x, y) < 0;
|
|
}
|
|
};
|
|
|
|
|
|
typedef Attribute* (*Constructor)();
|
|
typedef std::map <const char *, Constructor, NameCompare> TypeMap;
|
|
|
|
|
|
class LockedTypeMap: public TypeMap
|
|
{
|
|
public:
|
|
|
|
Mutex mutex;
|
|
};
|
|
|
|
|
|
LockedTypeMap &
|
|
typeMap ()
|
|
{
|
|
static Mutex criticalSection;
|
|
Lock lock (criticalSection);
|
|
|
|
static LockedTypeMap* typeMap = 0;
|
|
|
|
if (typeMap == 0)
|
|
typeMap = new LockedTypeMap ();
|
|
|
|
return *typeMap;
|
|
}
|
|
|
|
|
|
} // namespace
|
|
|
|
|
|
bool
|
|
Attribute::knownType (const char typeName[])
|
|
{
|
|
LockedTypeMap& tMap = typeMap();
|
|
Lock lock (tMap.mutex);
|
|
|
|
return tMap.find (typeName) != tMap.end();
|
|
}
|
|
|
|
|
|
void
|
|
Attribute::registerAttributeType (const char typeName[],
|
|
Attribute *(*newAttribute)())
|
|
{
|
|
LockedTypeMap& tMap = typeMap();
|
|
Lock lock (tMap.mutex);
|
|
|
|
if (tMap.find (typeName) != tMap.end())
|
|
THROW (Iex::ArgExc, "Cannot register image file attribute "
|
|
"type \"" << typeName << "\". "
|
|
"The type has already been registered.");
|
|
|
|
tMap.insert (TypeMap::value_type (typeName, newAttribute));
|
|
}
|
|
|
|
|
|
void
|
|
Attribute::unRegisterAttributeType (const char typeName[])
|
|
{
|
|
LockedTypeMap& tMap = typeMap();
|
|
Lock lock (tMap.mutex);
|
|
|
|
tMap.erase (typeName);
|
|
}
|
|
|
|
|
|
Attribute *
|
|
Attribute::newAttribute (const char typeName[])
|
|
{
|
|
LockedTypeMap& tMap = typeMap();
|
|
Lock lock (tMap.mutex);
|
|
|
|
TypeMap::const_iterator i = tMap.find (typeName);
|
|
|
|
if (i == tMap.end())
|
|
THROW (Iex::ArgExc, "Cannot create image file attribute of "
|
|
"unknown type \"" << typeName << "\".");
|
|
|
|
return (i->second)();
|
|
}
|
|
|
|
|
|
} // namespace Imf
|