OfxMemory.cpp

/* ***** BEGIN LICENSE BLOCK *****
 * This file is part of Natron <https://natrongithub.github.io/>,
 * (C) 2018-2021 The Natron developers
 * (C) 2013-2018 INRIA and Alexandre Gauthier-Foichat
 *
 * Natron 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.
 *
 * Natron 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 Natron.  If not, see <http://www.gnu.org/licenses/gpl-2.0.html>
 * ***** END LICENSE BLOCK ***** */

// ***** BEGIN PYTHON BLOCK *****
// from <https://docs.python.org/3/c-api/intro.html#include-files>:
// "Since Python may define some pre-processor definitions which affect the standard headers on some systems, you must include Python.h before any standard headers are included."
#include <Python.h>
// ***** END PYTHON BLOCK *****

#include "OfxMemory.h"

#include <cassert>
#include <stdexcept>

CLANG_DIAG_OFF(deprecated)
#include <QtCore/QMutex>
CLANG_DIAG_ON(deprecated)

#include "Engine/EffectInstance.h"
#include "Engine/PluginMemory.h"

NATRON_NAMESPACE_ENTER

OfxMemory::OfxMemory(const EffectInstancePtr& effect)
    : OFX::Host::Memory::Instance()
    , _memory( new PluginMemory(effect) )
{
    if (effect) {
        effect->addPluginMemoryPointer(_memory);
    }
}

OfxMemory::~OfxMemory()
{
}

void*
OfxMemory::getPtr()
{
    return _memory->getPtr();
}

bool
OfxMemory::alloc(size_t nBytes)
{
    bool ret = false;

    freeMem(); // ignore return value
    try {
        ret = _memory->alloc(nBytes);
    } catch (const std::bad_alloc &) {
        return false;
    }

    return ret;
}

bool
OfxMemory::freeMem()
{
    _memory->freeMem();
    return true;
}

void
OfxMemory::lock()
{
    _memory->lock();
}

void
OfxMemory::unlock()
{
    _memory->unlock();
}

NATRON_NAMESPACE_EXIT