1 /*!**************************************************************************** 2 3 @file PVRTGeometry.h 4 @copyright Copyright (c) Imagination Technologies Limited. 5 @brief Code to affect triangle mesh geometry. 6 7 ******************************************************************************/ 8 #ifndef _PVRTGEOMETRY_H_ 9 #define _PVRTGEOMETRY_H_ 10 11 12 /**************************************************************************** 13 ** Defines 14 ****************************************************************************/ 15 #define PVRTGEOMETRY_IDX unsigned int 16 17 #define PVRTGEOMETRY_SORT_VERTEXCACHE (0x01 /* Sort triangles for optimal vertex cache usage */) 18 #define PVRTGEOMETRY_SORT_IGNOREVERTS (0x02 /* Do not sort vertices for optimal memory cache usage */) 19 20 /**************************************************************************** 21 ** Functions 22 ****************************************************************************/ 23 24 /*!*************************************************************************** 25 @brief Triangle sorter 26 @param[in,out] pVtxData Pointer to array of vertices 27 @param[in,out] pwIdx Pointer to array of indices 28 @param[in] nStride Size of a vertex (in bytes) 29 @param[in] nVertNum Number of vertices. Length of pVtxData array 30 @param[in] nTriNum Number of triangles. Length of pwIdx array is 3* this 31 @param[in] nBufferVtxLimit Number of vertices that can be stored in a buffer 32 @param[in] nBufferTriLimit Number of triangles that can be stored in a buffer 33 @param[in] dwFlags PVRTGEOMETRY_SORT_* flags 34 *****************************************************************************/ 35 void PVRTGeometrySort( 36 void * const pVtxData, 37 PVRTGEOMETRY_IDX * const pwIdx, 38 const int nStride, 39 const int nVertNum, 40 const int nTriNum, 41 const int nBufferVtxLimit, 42 const int nBufferTriLimit, 43 const unsigned int dwFlags); 44 45 46 #endif /* _PVRTGEOMETRY_H_ */ 47 48 /***************************************************************************** 49 End of file (PVRTGeometry.h) 50 *****************************************************************************/ 51 52
