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Diffstat (limited to 'src/Runtime/Source/runtimerender/Qt3DSRenderTaggedPointer.h')
| -rw-r--r-- | src/Runtime/Source/runtimerender/Qt3DSRenderTaggedPointer.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/Runtime/Source/runtimerender/Qt3DSRenderTaggedPointer.h b/src/Runtime/Source/runtimerender/Qt3DSRenderTaggedPointer.h new file mode 100644 index 00000000..8dd8bdd0 --- /dev/null +++ b/src/Runtime/Source/runtimerender/Qt3DSRenderTaggedPointer.h @@ -0,0 +1,85 @@ +/**************************************************************************** +** +** 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_RENDER_TAGGED_POINTER_H +#define QT3DS_RENDER_TAGGED_POINTER_H +#include "Qt3DSRender.h" +#include "foundation/StringTable.h" + +namespace qt3ds { +namespace render { + + // User's will need to define specialize this struct in order + // to de-tag a pointer. + template <typename TDataType> + struct SPointerTag + { + /* Expected API for runtime RTTI + static CRegisteredString GetTag() { return g_dtype_specific_string; } + */ + }; + + // A pointer tagged with an identifier so we can have generic + // user data that is still somewhat typesafe. + struct STaggedPointer + { + void *m_UserData; + QT3DSU32 m_Tag; + STaggedPointer() + : m_UserData(NULL) + , m_Tag(0) + { + } + + STaggedPointer(void *inUserData, QT3DSU32 inTag) + : m_UserData(inUserData) + , m_Tag(inTag) + { + } + + template <typename TDataType> + STaggedPointer(TDataType *inType) + : m_UserData(reinterpret_cast<void *>(inType)) + , m_Tag(SPointerTag<TDataType>::GetTag()) + { + } + + template <typename TDataType> + TDataType *DynamicCast() const + { + if (m_Tag == SPointerTag<TDataType>::GetTag()) + return reinterpret_cast<TDataType *>(m_UserData); + return NULL; + } + }; +} +} + +#endif
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