[1092] | 1 | /*
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| 2 | -----------------------------------------------------------------------------
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| 3 | This source file is part of OGRE
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| 4 | (Object-oriented Graphics Rendering Engine)
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| 5 | For the latest info, see http://www.ogre3d.org/
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| 6 |
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| 7 | Copyright (c) 2000-2005 The OGRE Team
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| 8 | Also see acknowledgements in Readme.html
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or modify it under
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software
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| 12 | Foundation; either version 2 of the License, or (at your option) any later
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| 13 | version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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| 22 | http://www.gnu.org/copyleft/lesser.txt.
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| 23 | -----------------------------------------------------------------------------
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| 24 | */
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| 25 | #ifndef __PatchMesh_H__
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| 26 | #define __PatchMesh_H__
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| 27 |
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| 28 | #include "OgrePrerequisites.h"
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| 29 | #include "OgreMesh.h"
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| 30 | #include "OgrePatchSurface.h"
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| 31 |
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| 32 | namespace Ogre {
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| 33 |
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| 34 | /** Patch specialisation of Mesh.
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| 35 | @remarks
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| 36 | Instances of this class should be created by calling MeshManager::createBezierPatch.
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| 37 | */
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| 38 | class _OgreExport PatchMesh : public Mesh
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| 39 | {
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| 40 | protected:
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| 41 | /// Internal surface definition
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| 42 | PatchSurface mSurface;
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| 43 | /// Vertex declaration, cloned from the input
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| 44 | VertexDeclaration* mDeclaration;
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| 45 | public:
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| 46 | /// Constructor
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| 47 | PatchMesh(ResourceManager* creator, const String& name, ResourceHandle handle,
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| 48 | const String& group);
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| 49 |
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| 50 | /// Define the patch, as defined in MeshManager::createBezierPatch
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| 51 | void define(void* controlPointBuffer,
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| 52 | VertexDeclaration *declaration, size_t width, size_t height,
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| 53 | size_t uMaxSubdivisionLevel = PatchSurface::AUTO_LEVEL,
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| 54 | size_t vMaxSubdivisionLevel = PatchSurface::AUTO_LEVEL,
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| 55 | PatchSurface::VisibleSide visibleSide = PatchSurface::VS_FRONT,
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| 56 | HardwareBuffer::Usage vbUsage = HardwareBuffer::HBU_STATIC_WRITE_ONLY,
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| 57 | HardwareBuffer::Usage ibUsage = HardwareBuffer::HBU_DYNAMIC_WRITE_ONLY,
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| 58 | bool vbUseShadow = false, bool ibUseShadow = false);
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| 59 |
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| 60 | /* Sets the current subdivision level as a proportion of full detail.
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| 61 | @param factor Subdivision factor as a value from 0 (control points only) to 1 (maximum
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| 62 | subdivision). */
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| 63 | void setSubdivision(Real factor);
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| 64 | protected:
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| 65 | /// Overridden from Resource
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| 66 | void loadImpl(void);
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| 67 |
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| 68 | };
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| 69 | /** Specialisation of SharedPtr to allow SharedPtr to be assigned to PatchMeshPtr
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| 70 | @note Has to be a subclass since we need operator=.
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| 71 | We could templatise this instead of repeating per Resource subclass,
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| 72 | except to do so requires a form VC6 does not support i.e.
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| 73 | ResourceSubclassPtr<T> : public SharedPtr<T>
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| 74 | */
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| 75 | class _OgreExport PatchMeshPtr : public SharedPtr<PatchMesh>
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| 76 | {
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| 77 | public:
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| 78 | PatchMeshPtr() : SharedPtr<PatchMesh>() {}
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| 79 | explicit PatchMeshPtr(PatchMesh* rep) : SharedPtr<PatchMesh>(rep) {}
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| 80 | PatchMeshPtr(const PatchMeshPtr& r) : SharedPtr<PatchMesh>(r) {}
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| 81 | PatchMeshPtr(const ResourcePtr& r) : SharedPtr<PatchMesh>()
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| 82 | {
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| 83 | // lock & copy other mutex pointer
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| 84 | OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
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| 85 | OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
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| 86 | pRep = static_cast<PatchMesh*>(r.getPointer());
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| 87 | pUseCount = r.useCountPointer();
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| 88 | if (pUseCount)
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| 89 | {
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| 90 | ++(*pUseCount);
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| 91 | }
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| 92 | }
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| 93 |
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| 94 | /// Operator used to convert a ResourcePtr to a PatchMeshPtr
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| 95 | PatchMeshPtr& operator=(const ResourcePtr& r)
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| 96 | {
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| 97 | if (pRep == static_cast<PatchMesh*>(r.getPointer()))
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| 98 | return *this;
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| 99 | release();
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| 100 | // lock & copy other mutex pointer
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| 101 | OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
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| 102 | OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
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| 103 | pRep = static_cast<PatchMesh*>(r.getPointer());
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| 104 | pUseCount = r.useCountPointer();
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| 105 | if (pUseCount)
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| 106 | {
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| 107 | ++(*pUseCount);
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| 108 | }
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| 109 | return *this;
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| 110 | }
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| 111 | /// Operator used to convert a MeshPtr to a PatchMeshPtr
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| 112 | PatchMeshPtr& operator=(const MeshPtr& r)
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| 113 | {
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| 114 | if (pRep == static_cast<PatchMesh*>(r.getPointer()))
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| 115 | return *this;
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| 116 | release();
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| 117 | // lock & copy other mutex pointer
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| 118 | OGRE_LOCK_MUTEX(*r.OGRE_AUTO_MUTEX_NAME)
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| 119 | OGRE_COPY_AUTO_SHARED_MUTEX(r.OGRE_AUTO_MUTEX_NAME)
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| 120 | pRep = static_cast<PatchMesh*>(r.getPointer());
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| 121 | pUseCount = r.useCountPointer();
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| 122 | if (pUseCount)
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| 123 | {
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| 124 | ++(*pUseCount);
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| 125 | }
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| 126 | return *this;
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| 127 | }
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| 128 | };
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| 129 |
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| 130 | }
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| 131 |
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| 132 | #endif
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