hkMeshSectionBuilder.h
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- /*
- *
- * Confidential Information of Telekinesys Research Limited (t/a Havok). Not for disclosure or distribution without Havok's
- * prior written consent. This software contains code, techniques and know-how which is confidential and proprietary to Havok.
- * Level 2 and Level 3 source code contains trade secrets of Havok. Havok Software (C) Copyright 1999-2009 Telekinesys Research Limited t/a Havok. All Rights Reserved. Use of this software is subject to the terms of an end user license agreement.
- *
- */
- #ifndef HK_MESH_SECTION_BUILDER_H
- #define HK_MESH_SECTION_BUILDER_H
- #include <Common/GeometryUtilities/Mesh/hkMeshShape.h>
- /// This utility is designed to help the construction of mesh sections
- ///
- /// Specifically it hold all of the indices needed to construct a shape, as well as the hkMeshSectionCinfos
- ///
- /// Usage is of the form of calling 'startMeshSection' at the start of a new mesh section. You can optionally pass
- /// in the vertexBuffer and material associated with the section. Next multiple addTriangleIndices or addUnindexed
- /// calls can be made - and these will be accumulated in internally buffers. Once all of the indices have been
- /// added for the section a call to endMeshSection can be called.
- ///
- /// Before calling endMeshSection - if the vertexBuffer or the material haven't been set - they can be set with
- /// setVertexBuffer or setMaterial. It is invalid to have not set this data either in startMeshSection or with these methods
- /// before the endMeshSection call.
- ///
- /// Once all of the mesh sections have been added the hkMeshSectionCinfo array needed for construction can be retrieved
- /// by calling 'getSections' and the number of sections from getNumSections
- ///
- /// A hkMeshSectionBuilder can be emptied of its contents by calling 'clear' - allowing any internal allocation used for
- /// building to be potentially reused.
- ///
- /// sa hkMeshMaterial hkMeshShape
- class hkMeshSectionBuilder
- {
- public:
- HK_DECLARE_NONVIRTUAL_CLASS_ALLOCATOR( HK_MEMORY_CLASS_SCENE_DATA, hkMeshSectionBuilder );
- /// Dtor
- ~hkMeshSectionBuilder();
- /// Remove everything
- void clear();
- /// Start a new primitive
- void startMeshSection(hkMeshVertexBuffer* vertexBuffer = HK_NULL, hkMeshMaterial* material = HK_NULL);
- /// Add indices to the current primitive
- hkResult concatPrimitives(hkMeshSection::PrimitiveType primType, const hkUint16* indices, int numIndices, int indexBase = 0);
- /// Add indices to the current primitive
- hkResult concatPrimitives(hkMeshSection::PrimitiveType primType, const hkUint32* indices, int numIndices, int indexBase = 0);
- /// Add non indexed - this will add a new mesh section
- hkResult concatUnindexed(hkMeshSection::PrimitiveType primType, int vertexStartIndex, int numIndices);
- /// End the current primitive
- void endMeshSection();
- /// Can only be performed once in start/end - and must not have been set up at start
- void setVertexBuffer(hkMeshVertexBuffer* vertexBuffer);
- /// Can only be performed once in start/end - and must not have been set up at start
- void setMaterial(hkMeshMaterial* material);
- /// Get an array of primitives
- HK_FORCE_INLINE const hkMeshSectionCinfo* getSections() const { return m_sections.begin(); }
- /// Get the number of primitives
- HK_FORCE_INLINE int getNumSections() const { return m_sections.getSize(); }
- static hkBool canConcatPrimitives(hkMeshSection::PrimitiveType b, hkMeshSection::PrimitiveType a);
- protected:
- hkUint32* _addIndices32(int numIndices);
- hkUint16* _addIndices16(int numIndices);
- hkBool _canConcatPrimitive(hkMeshSection::PrimitiveType primType);
- void _makeIndices32();
- void _concatIndices(int vertexStartIndex, int numIndices);
- void _concatIndices(const hkUint16* srcIndices, int numIndices, int indexBase = 0);
- void _concatIndices(const hkUint32* srcIndices, int numIndices, int indexBase = 0);
- hkResult _makeConcatable(hkMeshSection::PrimitiveType primType);
- hkBool _isIndexed() const;
- hkResult _concatPrimitives(hkMeshSection::PrimitiveType primType, const hkUint16* indices, int numIndices, int indexBase);
- hkResult _concatPrimitives(hkMeshSection::PrimitiveType primType, const hkUint32* indices, int numIndices, int indexBase);
- static hkBool HK_CALL _needsIndices32(const hkUint16* srcIndices, int numIndices, int indexBase);
-
- int m_indexBase16;
- int m_indexBase32;
- hkArray<hkMeshSectionCinfo> m_sections; ///
- hkArray<hkUint16> m_indices16; ///
- hkArray<hkUint32> m_indices32; ///
- };
- #endif // HK_MESH_SECTION_BUILDER_H
- /*
- * Havok SDK - NO SOURCE PC DOWNLOAD, BUILD(#20090216)
- *
- * Confidential Information of Havok. (C) Copyright 1999-2009
- * Telekinesys Research Limited t/a Havok. All Rights Reserved. The Havok
- * Logo, and the Havok buzzsaw logo are trademarks of Havok. Title, ownership
- * rights, and intellectual property rights in the Havok software remain in
- * Havok and/or its suppliers.
- *
- * Use of this software for evaluation purposes is subject to and indicates
- * acceptance of the End User licence Agreement for this product. A copy of
- * the license is included with this software and is also available at www.havok.com/tryhavok.
- *
- */