/*!****************************************************************************
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@file PVRTGeometry.h
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@copyright Copyright (c) Imagination Technologies Limited.
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@brief Code to affect triangle mesh geometry.
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******************************************************************************/
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#ifndef _PVRTGEOMETRY_H_
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#define _PVRTGEOMETRY_H_
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/****************************************************************************
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** Defines
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****************************************************************************/
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#define PVRTGEOMETRY_IDX unsigned int
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#define PVRTGEOMETRY_SORT_VERTEXCACHE (0x01 /* Sort triangles for optimal vertex cache usage */)
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#define PVRTGEOMETRY_SORT_IGNOREVERTS (0x02 /* Do not sort vertices for optimal memory cache usage */)
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/****************************************************************************
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** Functions
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****************************************************************************/
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/*!***************************************************************************
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@brief Triangle sorter
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@param[in,out] pVtxData Pointer to array of vertices
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@param[in,out] pwIdx Pointer to array of indices
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@param[in] nStride Size of a vertex (in bytes)
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@param[in] nVertNum Number of vertices. Length of pVtxData array
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@param[in] nTriNum Number of triangles. Length of pwIdx array is 3* this
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@param[in] nBufferVtxLimit Number of vertices that can be stored in a buffer
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@param[in] nBufferTriLimit Number of triangles that can be stored in a buffer
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@param[in] dwFlags PVRTGEOMETRY_SORT_* flags
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*****************************************************************************/
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void PVRTGeometrySort(
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void * const pVtxData,
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PVRTGEOMETRY_IDX * const pwIdx,
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const int nStride,
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const int nVertNum,
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const int nTriNum,
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const int nBufferVtxLimit,
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const int nBufferTriLimit,
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const unsigned int dwFlags);
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#endif /* _PVRTGEOMETRY_H_ */
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/*****************************************************************************
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End of file (PVRTGeometry.h)
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*****************************************************************************/
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