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Diffstat (limited to 'src/system/Qt3DSMemoryFilter.h')
-rw-r--r-- | src/system/Qt3DSMemoryFilter.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/system/Qt3DSMemoryFilter.h b/src/system/Qt3DSMemoryFilter.h new file mode 100644 index 0000000..df9367d --- /dev/null +++ b/src/system/Qt3DSMemoryFilter.h @@ -0,0 +1,69 @@ +/**************************************************************************** +** +** Copyright (C) 1993-2009 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 + +//============================================================================== +// Namespace +//============================================================================== +namespace Q3DStudio { + +//============================================================================== +/** + * Aggregation interface for legacy calls that don't remember allocation size. + * + * CMemoryManager and its pools require that the size must be sent along with + * any call, including the Free call. Normal memory calls do not require this + * information and this filter class is used to intercept these calls and + * add a header to each call before forwarded to the manager. This thin class + * allows old school calls such as malloc and free to still use the advantages + * of a pooled memory system without impacting the cleanliness and memory + * footprint of the modern system. + */ +class CMemoryFilter +{ + //============================================================================== + // Constants + //============================================================================== +protected: + const static INT32 FILTER_DOGTAG = 0x1337f1d0; + + //============================================================================== + // Methods + //============================================================================== +public: // Allocation Deallocation + static void *Allocate(const INT32 inSize, const CHAR *inType, const CHAR *inFile, + const INT32 inLine, const BOOL inClear); + static void Free(void *inPointer); + static void *Reallocate(void *inPointer, const INT32 inNewSize, const CHAR *inNewType, + const CHAR *inFile, const INT32 inLine); +}; + +} // namespace Q3DStudio |