OgrePatchMesh.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) 2000-2009 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 #ifndef __PatchMesh_H__
00029 #define __PatchMesh_H__
00030 
00031 #include "OgrePrerequisites.h"
00032 #include "OgreMesh.h"
00033 #include "OgrePatchSurface.h"
00034 
00035 namespace Ogre {
00036 
00047     class _OgreExport PatchMesh : public Mesh
00048     {
00049     protected:
00051         PatchSurface mSurface;
00053         VertexDeclaration* mDeclaration;
00054     public:
00056         PatchMesh(ResourceManager* creator, const String& name, ResourceHandle handle,
00057             const String& group);
00058 
00060         void define(void* controlPointBuffer, 
00061             VertexDeclaration *declaration, size_t width, size_t height,
00062             size_t uMaxSubdivisionLevel = PatchSurface::AUTO_LEVEL, 
00063             size_t vMaxSubdivisionLevel = PatchSurface::AUTO_LEVEL,
00064             PatchSurface::VisibleSide visibleSide = PatchSurface::VS_FRONT,
00065             HardwareBuffer::Usage vbUsage = HardwareBuffer::HBU_STATIC_WRITE_ONLY, 
00066             HardwareBuffer::Usage ibUsage = HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY,
00067             bool vbUseShadow = false, bool ibUseShadow = false);
00068 
00069         /* Sets the current subdivision level as a proportion of full detail.
00070         @param factor Subdivision factor as a value from 0 (control points only) to 1 (maximum
00071             subdivision). */
00072         void setSubdivision(Real factor);
00073     protected:
00075         void loadImpl(void);
00077         void prepareImpl(void) {}
00078 
00079     };
00086     class _OgreExport PatchMeshPtr : public SharedPtr<PatchMesh> 
00087     {
00088     public:
00089         PatchMeshPtr() : SharedPtr<PatchMesh>() {}
00090         explicit PatchMeshPtr(PatchMesh* rep) : SharedPtr<PatchMesh>(rep) {}
00091         PatchMeshPtr(const PatchMeshPtr& r) : SharedPtr<PatchMesh>(r) {} 
00092         PatchMeshPtr(const ResourcePtr& r) : SharedPtr<PatchMesh>()
00093         {
00094             // lock & copy other mutex pointer
00095             OGRE_MUTEX_CONDITIONAL(r.OGRE_AUTO_MUTEX_NAME)
00096             {
00097                 OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
00098                 OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
00099                 pRep = static_cast<PatchMesh*>(r.getPointer());
00100                 pUseCount = r.useCountPointer();
00101                 if (pUseCount)
00102                 {
00103                     ++(*pUseCount);
00104                 }
00105             }
00106         }
00107 
00109         PatchMeshPtr& operator=(const ResourcePtr& r)
00110         {
00111             if (pRep == static_cast<PatchMesh*>(r.getPointer()))
00112                 return *this;
00113             release();
00114 
00115             OGRE_MUTEX_CONDITIONAL(r.OGRE_AUTO_MUTEX_NAME)
00116             {
00117                 // lock & copy other mutex pointer
00118                 OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
00119                 OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
00120                 pRep = static_cast<PatchMesh*>(r.getPointer());
00121                 pUseCount = r.useCountPointer();
00122                 if (pUseCount)
00123                 {
00124                     ++(*pUseCount);
00125                 }
00126             }
00127             else
00128             {
00129                 // RHS must be a null pointer
00130                 assert(r.isNull() && "RHS must be null if it has no mutex!");
00131                 setNull();
00132             }
00133             return *this;
00134         }
00136         PatchMeshPtr& operator=(const MeshPtr& r)
00137         {
00138             if (pRep == static_cast<PatchMesh*>(r.getPointer()))
00139                 return *this;
00140             release();
00141             // lock & copy other mutex pointer
00142             OGRE_MUTEX_CONDITIONAL(r.OGRE_AUTO_MUTEX_NAME)
00143             {
00144                 OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
00145                 OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
00146                 pRep = static_cast<PatchMesh*>(r.getPointer());
00147                 pUseCount = r.useCountPointer();
00148                 if (pUseCount)
00149                 {
00150                     ++(*pUseCount);
00151                 }
00152             }
00153             return *this;
00154         }
00155     };
00159 }
00160 
00161 #endif

Copyright © 2008 Torus Knot Software Ltd
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This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Nov 3 2010 19:24:52