/usr/include/crystalspace-2.0/cstool/vertexcompress.h is in libcrystalspace-dev 2.0+dfsg-1build1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | /*
Copyright (C) 2005 by Jorrit Tyberghein
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CS_VERTEXCOMPRESS_H__
#define __CS_VERTEXCOMPRESS_H__
/**\file
* Vertex Compressor
*/
#include "csextern.h"
#include "csgeom/vector3.h"
#include "csgeom/vector2.h"
#include "csutil/array.h"
#include "csutil/cscolor.h"
#include "csutil/ref.h"
struct iRenderBuffer;
/// This structure is used by csVertexCompressor::Compress().
struct csCompressVertexInfo
{
size_t orig_idx;
int x, y, z;
int u, v;
int nx, ny, nz;
int r, g, b, a;
size_t new_idx;
bool used;
};
/**
* A vertex compressor.
*/
class CS_CRYSTALSPACE_EXPORT csVertexCompressor
{
public:
/**
* Compress an array of vertices (i.e. remove all duplicated
* vertices). Returns an array of csCompressVertex which can be
* used to map from the old index to the new one. 'new_count'
* will be set to the new number of unique vertices (and 'new_vertices'
* will be the new vertex table with that size). The size
* of the returned array is 'num_vertices' though since it has
* to be indexed with the original vertex array.
* If this function returns 0 there is nothing to do (i.e. no duplicate
* vertices). Otherwise you have to 'delete[]' the returned array.
*/
static csCompressVertexInfo* Compress (csVector3* vertices,
csVector2* texels, csVector3* normals, csColor4* colors,
size_t num_vertices, csVector3*& new_vertices,
csVector2*& new_texels, csVector3*& new_normals,
csColor4*& new_colors, size_t& new_count);
/**
* Compress an array of vertices (i.e. remove all duplicated
* vertices). Returns an array of csCompressVertex which can be
* used to map from the old index to the new one. The 'vertices'
* table will be modified with the new compressed vertices.
* If this function returns 0 there is nothing to do (i.e. no duplicate
* vertices). Otherwise you have to 'delete[]' the returned array.
*/
static csCompressVertexInfo* Compress (csArray<csVector3>& vertices,
csArray<csVector2>& texels, csArray<csVector3>& normals,
csArray<csColor4>& colors);
/**
* Compress an array of vertices (i.e. remove all duplicated
* vertices).
* \param buffers Array of render buffers to compress.
* All buffers must have the same amount of elements.
* The pointed-to references will be replaced with the compressed
* buffers.
* \param numBuffers Number of render buffers in \a buffers.
* \param newCount Receives the new vertex count.
* \returns An array of indices to map from an old index to a new one.
* The array size will be equal to old the number of vertices.
* It must be freed with delete[] after use.
*/
static size_t* Compress (csRef<iRenderBuffer>* buffers, size_t numBuffers,
size_t& newCount);
};
/** @} */
#endif // __CS_VERTEXCOMPRESS_H__
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