OgreGLES2HardwareIndexBuffer.h
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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright (c) 2000-2012 Torus Knot Software Ltd
    00008
    00009 Permission is hereby granted, free of charge, to any person obtaining a copy
    00010 of this software and associated documentation files (the "Software"), to deal
    00011 in the Software without restriction, including without limitation the rights
    00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00013 copies of the Software, and to permit persons to whom the Software is
    00014 furnished to do so, subject to the following conditions:
    00015
    00016 The above copyright notice and this permission notice shall be included in
    00017 all copies or substantial portions of the Software.
    00018
    00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    00025 THE SOFTWARE.
    00026 -----------------------------------------------------------------------------
    00027 */
    00028
    00029 #ifndef __GLES2HardwareIndexBuffer_H__
    00030 #define __GLES2HardwareIndexBuffer_H__
    00031
    00032 #include "OgreGLES2Prerequisites.h"
    00033 #include "OgreHardwareIndexBuffer.h"
    00034
    00035 namespace Ogre {
    00036     class _OgreGLES2Export GLES2HardwareIndexBuffer : public HardwareIndexBuffer
    00037     {
    00038         private:
    00039             GLuint mBufferId;
    00040             // Scratch buffer handling
    00041             bool mLockedToScratch;
    00042             size_t mScratchOffset;
    00043             size_t mScratchSize;
    00044             void* mScratchPtr;
    00045             bool mScratchUploadOnUnlock;
    00046
    00047         protected:
    00049             void* lockImpl(size_t offset, size_t length, LockOptions options);
    00051             void unlockImpl(void);
    00052
    00053         public:
    00054             GLES2HardwareIndexBuffer(HardwareBufferManagerBase* mgr, IndexType idxType, size_t numIndexes,
    00055                                   HardwareBuffer::Usage usage,
    00056                                   bool useShadowBuffer);
    00057             virtual ~GLES2HardwareIndexBuffer();
    00059             void readData(size_t offset, size_t length, void* pDest);
    00061             void writeData(size_t offset, size_t length,
    00062                 const void* pSource, bool discardWholeBuffer = false);
    00064             void _updateFromShadow(void);
    00065
    00066             inline GLuint getGLBufferId(void) const { return mBufferId; }
    00067     };
    00068 }
    00069
    00070 #endif

Copyright © 2012 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:27:21