OgreGLESHardwareBufferManager.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) 2008 Renato Araujo Oliveira Filho <renatox@gmail.com>
    00008 Copyright (c) 2000-2012 Torus Knot Software Ltd
    00009
    00010 Permission is hereby granted, free of charge, to any person obtaining a copy
    00011 of this software and associated documentation files (the "Software"), to deal
    00012 in the Software without restriction, including without limitation the rights
    00013 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00014 copies of the Software, and to permit persons to whom the Software is
    00015 furnished to do so, subject to the following conditions:
    00016
    00017 The above copyright notice and this permission notice shall be included in
    00018 all copies or substantial portions of the Software.
    00019
    00020 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00021 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00022 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    00023 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00024 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    00025 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    00026 THE SOFTWARE.
    00027 -----------------------------------------------------------------------------
    00028 */
    00029
    00030 #ifndef __GLESHardwareBufferManager_H__
    00031 #define __GLESHardwareBufferManager_H__
    00032
    00033 #include "OgreGLESPrerequisites.h"
    00034 #include "OgreHardwareBufferManager.h"
    00035
    00036 namespace Ogre {
    00037     // Default threshold at which glMapBuffer becomes more efficient than glBufferSubData (32k?)
    00038     #   define OGRE_GL_MAP_BUFFER_THRESHOLD (1024 * 32)
    00039
    00041     class _OgreGLESExport GLESHardwareBufferManagerBase : public HardwareBufferManagerBase
    00042     {
    00043         protected:
    00044             char* mScratchBufferPool;
    00045             OGRE_MUTEX(mScratchMutex)
    00046             size_t mMapBufferThreshold;
    00047
    00048         public:
    00049             GLESHardwareBufferManagerBase();
    00050             virtual ~GLESHardwareBufferManagerBase();
    00052             HardwareVertexBufferSharedPtr createVertexBuffer(size_t vertexSize,
    00053                 size_t numVerts, HardwareBuffer::Usage usage, bool useShadowBuffer = false);
    00055             HardwareIndexBufferSharedPtr createIndexBuffer(
    00056                 HardwareIndexBuffer::IndexType itype, size_t numIndexes,
    00057                 HardwareBuffer::Usage usage, bool useShadowBuffer = false);
    00059             RenderToVertexBufferSharedPtr createRenderToVertexBuffer();
    00060
    00062             static GLenum getGLUsage(unsigned int usage);
    00063
    00065             static GLenum getGLType(unsigned int type);
    00066
    00074             void* allocateScratch(uint32 size);
    00075
    00077             void deallocateScratch(void* ptr);
    00078
    00081             size_t getGLMapBufferThreshold() const;
    00082             void setGLMapBufferThreshold( const size_t value );
    00083     };
    00084
    00086     class _OgreGLESExport GLESHardwareBufferManager : public HardwareBufferManager
    00087     {
    00088     public:
    00089         GLESHardwareBufferManager()
    00090             : HardwareBufferManager(OGRE_NEW GLESHardwareBufferManagerBase())
    00091         {
    00092
    00093         }
    00094         ~GLESHardwareBufferManager()
    00095         {
    00096             OGRE_DELETE mImpl;
    00097         }
    00098
    00099
    00100
    00102         static GLenum getGLUsage(unsigned int usage)
    00103         { return GLESHardwareBufferManagerBase::getGLUsage(usage); }
    00104
    00106         static GLenum getGLType(unsigned int type)
    00107         { return GLESHardwareBufferManagerBase::getGLType(type); }
    00108
    00116         void* allocateScratch(uint32 size)
    00117         {
    00118             return static_cast<GLESHardwareBufferManagerBase*>(mImpl)->allocateScratch(size);
    00119         }
    00120
    00122         void deallocateScratch(void* ptr)
    00123         {
    00124             static_cast<GLESHardwareBufferManagerBase*>(mImpl)->deallocateScratch(ptr);
    00125         }
    00128         size_t getGLMapBufferThreshold() const
    00129         {
    00130             return static_cast<GLESHardwareBufferManagerBase*>(mImpl)->getGLMapBufferThreshold();
    00131         }
    00132         void setGLMapBufferThreshold( const size_t value )
    00133         {
    00134             static_cast<GLESHardwareBufferManagerBase*>(mImpl)->setGLMapBufferThreshold(value);
    00135         }
    00136
    00137     };
    00138
    00139 }
    00140
    00141 #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