OgreGLDefaultHardwareBufferManager.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 __GLDefaultHardwareBufferManager_H__
    00030 #define __GLDefaultHardwareBufferManager_H__
    00031
    00032 #include "OgreGLPrerequisites.h"
    00033 #include "OgreHardwareBufferManager.h"
    00034 #include "OgreHardwareVertexBuffer.h"
    00035 #include "OgreHardwareIndexBuffer.h"
    00036
    00037 namespace Ogre {
    00038
    00040     class _OgreGLExport GLDefaultHardwareVertexBuffer : public HardwareVertexBuffer
    00041     {
    00042     protected:
    00043         unsigned char* mData;
    00045         void* lockImpl(size_t offset, size_t length, LockOptions options);
    00047         void unlockImpl(void);
    00048
    00049     public:
    00050         GLDefaultHardwareVertexBuffer(size_t vertexSize, size_t numVertices, HardwareBuffer::Usage usage);
    00051         GLDefaultHardwareVertexBuffer(HardwareBufferManagerBase* mgr, size_t vertexSize, size_t numVertices,
    00052             HardwareBuffer::Usage usage);
    00053         ~GLDefaultHardwareVertexBuffer();
    00055         void readData(size_t offset, size_t length, void* pDest);
    00057
    00058         void writeData(size_t offset, size_t length, const void* pSource,
    00059                 bool discardWholeBuffer = false);
    00061         void* lock(size_t offset, size_t length, LockOptions options);
    00063         void unlock(void);
    00064
    00065         //void* getDataPtr(void) const { return (void*)mData; }
    00066         void* getDataPtr(size_t offset) const { return (void*)(mData + offset); }
    00067     };
    00068
    00070     class _OgreGLExport GLDefaultHardwareIndexBuffer : public HardwareIndexBuffer
    00071     {
    00072     protected:
    00073         unsigned char* mData;
    00075         void* lockImpl(size_t offset, size_t length, LockOptions options);
    00077         void unlockImpl(void);
    00078     public:
    00079         GLDefaultHardwareIndexBuffer(IndexType idxType, size_t numIndexes, HardwareBuffer::Usage usage);
    00080         ~GLDefaultHardwareIndexBuffer();
    00082         void readData(size_t offset, size_t length, void* pDest);
    00084         void writeData(size_t offset, size_t length, const void* pSource,
    00085                 bool discardWholeBuffer = false);
    00087         void* lock(size_t offset, size_t length, LockOptions options);
    00089         void unlock(void);
    00090
    00091         void* getDataPtr(size_t offset) const { return (void*)(mData + offset); }
    00092     };
    00093
    00101     class _OgreGLExport GLDefaultHardwareBufferManagerBase : public HardwareBufferManagerBase
    00102     {
    00103     public:
    00104         GLDefaultHardwareBufferManagerBase();
    00105         ~GLDefaultHardwareBufferManagerBase();
    00107         HardwareVertexBufferSharedPtr
    00108             createVertexBuffer(size_t vertexSize, size_t numVerts,
    00109                 HardwareBuffer::Usage usage, bool useShadowBuffer = false);
    00111         HardwareIndexBufferSharedPtr
    00112             createIndexBuffer(HardwareIndexBuffer::IndexType itype, size_t numIndexes,
    00113                 HardwareBuffer::Usage usage, bool useShadowBuffer = false);
    00115         RenderToVertexBufferSharedPtr createRenderToVertexBuffer();
    00116
    00117     };
    00118
    00120     class _OgreGLExport GLDefaultHardwareBufferManager : public HardwareBufferManager
    00121     {
    00122     public:
    00123         GLDefaultHardwareBufferManager()
    00124             : HardwareBufferManager(OGRE_NEW GLDefaultHardwareBufferManagerBase())
    00125         {
    00126
    00127         }
    00128         ~GLDefaultHardwareBufferManager()
    00129         {
    00130             OGRE_DELETE mImpl;
    00131         }
    00132     };
    00133 }
    00134
    00135 #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