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 __GLES2HardwareBufferManager_H__ 00030 #define __GLES2HardwareBufferManager_H__ 00031 00032 #include "OgreGLES2Prerequisites.h" 00033 #include "OgreHardwareBufferManager.h" 00034 00035 namespace Ogre { 00036 // Default threshold at which glMapBuffer becomes more efficient than glBufferSubData (32k?) 00037 # define OGRE_GL_DEFAULT_MAP_BUFFER_THRESHOLD (1024 * 32) 00038 00040 class _OgreGLES2Export GLES2HardwareBufferManagerBase : public HardwareBufferManagerBase 00041 { 00042 protected: 00043 char* mScratchBufferPool; 00044 OGRE_MUTEX(mScratchMutex) 00045 size_t mMapBufferThreshold; 00046 00047 public: 00048 GLES2HardwareBufferManagerBase(); 00049 virtual ~GLES2HardwareBufferManagerBase(); 00051 HardwareVertexBufferSharedPtr createVertexBuffer(size_t vertexSize, 00052 size_t numVerts, HardwareBuffer::Usage usage, bool useShadowBuffer = false); 00054 HardwareIndexBufferSharedPtr createIndexBuffer( 00055 HardwareIndexBuffer::IndexType itype, size_t numIndexes, 00056 HardwareBuffer::Usage usage, bool useShadowBuffer = false); 00058 RenderToVertexBufferSharedPtr createRenderToVertexBuffer(); 00059 00061 static GLenum getGLUsage(unsigned int usage); 00062 00064 static GLenum getGLType(unsigned int type); 00065 00073 void* allocateScratch(uint32 size); 00074 00076 void deallocateScratch(void* ptr); 00077 00080 size_t getGLMapBufferThreshold() const; 00081 void setGLMapBufferThreshold( const size_t value ); 00082 }; 00083 00085 class _OgreGLES2Export GLES2HardwareBufferManager : public HardwareBufferManager 00086 { 00087 public: 00088 GLES2HardwareBufferManager() 00089 : HardwareBufferManager(OGRE_NEW GLES2HardwareBufferManagerBase()) 00090 { 00091 00092 } 00093 ~GLES2HardwareBufferManager() 00094 { 00095 OGRE_DELETE mImpl; 00096 } 00097 00099 static GLenum getGLUsage(unsigned int usage) 00100 { return GLES2HardwareBufferManagerBase::getGLUsage(usage); } 00101 00103 static GLenum getGLType(unsigned int type) 00104 { return GLES2HardwareBufferManagerBase::getGLType(type); } 00105 00113 void* allocateScratch(uint32 size) 00114 { 00115 return static_cast<GLES2HardwareBufferManagerBase*>(mImpl)->allocateScratch(size); 00116 } 00117 00119 void deallocateScratch(void* ptr) 00120 { 00121 static_cast<GLES2HardwareBufferManagerBase*>(mImpl)->deallocateScratch(ptr); 00122 } 00123 00126 size_t getGLMapBufferThreshold() const 00127 { 00128 return static_cast<GLES2HardwareBufferManagerBase*>(mImpl)->getGLMapBufferThreshold(); 00129 } 00130 void setGLMapBufferThreshold( const size_t value ) 00131 { 00132 static_cast<GLES2HardwareBufferManagerBase*>(mImpl)->setGLMapBufferThreshold(value); 00133 } 00134 00135 }; 00136 00137 } 00138 00139 #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