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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
#ifndef QT3DS_OFFSCREEN_RENDER_KEY_H
#define QT3DS_OFFSCREEN_RENDER_KEY_H
#include "Qt3DSRender.h"
#include "foundation/StringTable.h"
#include "foundation/Qt3DSDiscriminatedUnion.h"
namespace qt3ds {
namespace foundation {
template <>
struct DestructTraits<CRegisteredString>
{
void destruct(CRegisteredString &) {}
};
}
}
namespace qt3ds {
namespace render {
struct OffscreenRendererKeyTypes
{
enum Enum {
NoOffscreenRendererKey = 0,
RegisteredString,
VoidPtr,
};
};
template <typename TDType>
struct SOffscreenRendererKeyTypeMap
{
};
template <>
struct SOffscreenRendererKeyTypeMap<CRegisteredString>
{
enum { KeyType = OffscreenRendererKeyTypes::RegisteredString };
};
template <>
struct SOffscreenRendererKeyTypeMap<void *>
{
enum { KeyType = OffscreenRendererKeyTypes::VoidPtr };
};
struct SOffscreenRendererKeyUnionTraits
{
typedef OffscreenRendererKeyTypes::Enum TIdType;
enum {
TBufferSize = sizeof(CRegisteredString),
};
static TIdType getNoDataId() { return OffscreenRendererKeyTypes::NoOffscreenRendererKey; }
template <typename TDataType>
static TIdType getType()
{
return (TIdType)SOffscreenRendererKeyTypeMap<TDataType>::KeyType;
}
template <typename TRetType, typename TVisitorType>
static TRetType visit(char *inData, TIdType inType, TVisitorType inVisitor)
{
switch (inType) {
case OffscreenRendererKeyTypes::RegisteredString:
return inVisitor(*NVUnionCast<CRegisteredString *>(inData));
case OffscreenRendererKeyTypes::VoidPtr:
return inVisitor(*NVUnionCast<void **>(inData));
default:
QT3DS_ASSERT(false);
case OffscreenRendererKeyTypes::NoOffscreenRendererKey:
return inVisitor();
}
}
template <typename TRetType, typename TVisitorType>
static TRetType visit(const char *inData, TIdType inType, TVisitorType inVisitor)
{
switch (inType) {
case OffscreenRendererKeyTypes::RegisteredString:
return inVisitor(*NVUnionCast<const CRegisteredString *>(inData));
case OffscreenRendererKeyTypes::VoidPtr:
return inVisitor(*NVUnionCast<const void **>(inData));
default:
QT3DS_ASSERT(false);
case OffscreenRendererKeyTypes::NoOffscreenRendererKey:
return inVisitor();
}
}
};
typedef qt3ds::foundation::
DiscriminatedUnion<qt3ds::foundation::
DiscriminatedUnionGenericBase<SOffscreenRendererKeyUnionTraits,
SOffscreenRendererKeyUnionTraits::
TBufferSize>,
SOffscreenRendererKeyUnionTraits::TBufferSize>
TOffscreenRendererKeyUnionType;
struct SOffscreenRendererKey : public TOffscreenRendererKeyUnionType
{
typedef TOffscreenRendererKeyUnionType TBase;
SOffscreenRendererKey() {}
SOffscreenRendererKey(const CRegisteredString &str)
: TBase(str)
{
}
SOffscreenRendererKey(void *key)
: TBase(key)
{
}
SOffscreenRendererKey(const SOffscreenRendererKey &other)
: TBase(static_cast<const TBase &>(other))
{
}
SOffscreenRendererKey &operator=(const SOffscreenRendererKey &other)
{
TBase::operator=(other);
return *this;
}
};
}
}
#endif
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