1 /************************************************************************** 2 * 3 * Copyright 2009 Marek Olšák <[email protected]> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sub license, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial portions 15 * of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 **************************************************************************/ 26 27 #ifndef U_TEXTURE_H 28 #define U_TEXTURE_H 29 30 #include "util/compiler.h" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /** 37 * Convert 2D texture coordinates of 4 vertices into cubemap coordinates 38 * in the given face. 39 * Coordinates must be in the range [0,1]. 40 * 41 * \param face Cubemap face. 42 * \param in_st 4 pairs of 2D texture coordinates to convert. 43 * \param in_stride Stride of in_st in floats. 44 * \param out_str STR cubemap texture coordinates to compute. 45 * \param out_stride Stride of out_str in floats. 46 */ 47 void util_map_texcoords2d_onto_cubemap(unsigned face, 48 const float *in_st, unsigned in_stride, 49 float *out_str, unsigned out_stride); 50 51 52 #ifdef __cplusplus 53 } 54 #endif 55 56 #endif 57