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88 lines
3.0 KiB
88 lines
3.0 KiB
4 years ago
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/*==LICENSE==*
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CyanWorlds.com Engine - MMOG client, server and tools
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Copyright (C) 2011 Cyan Worlds, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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Additional permissions under GNU GPL version 3 section 7
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If you modify this Program, or any covered work, by linking or
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
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(or a modified version of those libraries),
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
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licensors of this Program grant you additional
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permission to convey the resulting work. Corresponding Source for a
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non-source form of such a combination shall include the source code for
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
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work.
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You can contact Cyan Worlds, Inc. by email legal@cyan.com
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or by snail mail at:
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Cyan Worlds, Inc.
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14617 N Newport Hwy
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Mead, WA 99021
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*==LICENSE==*/
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#ifndef plAccessSnapShot_inc
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#define plAccessSnapShot_inc
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#include "plAccessVtxSpan.h"
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// All functions and fields here (including constructor) are private,
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// because the only valid user of this is the friend class plAccessGeometry.
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// Use this only via plAccessGeometry.
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class plAccessSnapShot : public plAccessVtxSpan
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{
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public:
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void Destroy(); // Free up and reset to zero.
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protected:
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UInt16 fRefCnt;
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UInt8* fData;
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UInt16 fChanSize[kNumValidChans];
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void ICopyOldData(UInt8* data, const UInt16* const oldSizes, UInt16 oldStride, UInt16 newStride);
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UInt16 IComputeStride() const;
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void IRecordSizes(UInt16 sizes[]) const;
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UInt32 ICheckAlloc(const plAccessVtxSpan& src, UInt32 chanMask, UInt32 chan, UInt16 chanSize);
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void ISetupPointers(UInt16 newStride);
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void SetupChannels(plAccessVtxSpan& dst) const;
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UInt32 CopyTo(const plAccessVtxSpan& dst, UInt32 chanMask);
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UInt32 CopyFrom(const plAccessVtxSpan& src, UInt32 chanMask);
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void Release(); // Decrements refcnt, calls Destroy on zero
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void Clear(); // Initialize to zeros
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void IncRef() { fRefCnt++; }
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void DecRef() { Release(); }
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plAccessSnapShot() : fRefCnt(0), fData(nil) { Clear(); }
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friend class plAccessGeometry;
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};
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#endif // plAccessSnapShot_inc
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