1 /* 2 * Copyright (C) 2011 Rudolf Polzer All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included 12 * in all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * RUDOLF POLZER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 18 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 */ 21 22 #ifndef S2TC_COMPRESSOR_H 23 #define S2TC_COMPRESSOR_H 24 25 // note: this is a C header file! 26 27 #ifdef __cplusplus 28 extern "C" { 29 #endif 30 31 enum DitherMode 32 { 33 DITHER_NONE, 34 DITHER_SIMPLE, 35 DITHER_FLOYDSTEINBERG 36 }; 37 38 void rgb565_image(unsigned char *out, const unsigned char *rgba, int w, int h, int srccomps, int alphabits, DitherMode dither); 39 40 enum DxtMode 41 { 42 DXT1, 43 DXT3, 44 DXT5 45 }; 46 enum RefinementMode 47 { 48 REFINE_NEVER, 49 REFINE_ALWAYS, 50 REFINE_LOOP 51 }; 52 53 typedef enum 54 { 55 RGB, 56 YUV, 57 SRGB, 58 SRGB_MIXED, 59 AVG, 60 WAVG, 61 W0AVG, 62 NORMALMAP 63 } ColorDistMode; 64 65 typedef void (*s2tc_encode_block_func_t) (unsigned char *out, const unsigned char *rgba, int iw, int w, int h, int nrandom); 66 s2tc_encode_block_func_t s2tc_encode_block_func(DxtMode dxt, ColorDistMode cd, int nrandom, RefinementMode refine); 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif 73