| 1 | /* |
| 2 | * Texture Filtering |
| 3 | * Version: 1.0 |
| 4 | * |
| 5 | * Copyright (C) 2007 Hiroshi Morii All Rights Reserved. |
| 6 | * Email koolsmoky(at)users.sourceforge.net |
| 7 | * Web http://www.3dfxzone.it/koolsmoky |
| 8 | * |
| 9 | * this is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2, or (at your option) |
| 12 | * any later version. |
| 13 | * |
| 14 | * this is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with GNU Make; see the file COPYING. If not, write to |
| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
| 24 | #ifndef __TXRESAMPLE_H__ |
| 25 | #define __TXRESAMPLE_H__ |
| 26 | |
| 27 | #include "TxInternal.h" |
| 28 | |
| 29 | class TxReSample |
| 30 | { |
| 31 | private: |
| 32 | double tent(double x); |
| 33 | double gaussian(double x); |
| 34 | double sinc(double x); |
| 35 | double lanczos3(double x); |
| 36 | double mitchell(double x); |
| 37 | double besselI0(double x); |
| 38 | double kaiser(double x); |
| 39 | public: |
| 40 | boolean minify(uint8 **src, int *width, int *height, int ratio); |
| 41 | boolean nextPow2(uint8** image, int* width, int* height, int bpp, boolean use_3dfx); |
| 42 | int nextPow2(int num); |
| 43 | }; |
| 44 | |
| 45 | #endif /* __TXRESAMPLE_H__ */ |