forked from KolibriOS/kolibrios
55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
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/**************************************************************************
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*
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* Copyright 2009 Marek Olšák <maraeo@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef U_TEXTURE_H
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#define U_TEXTURE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Convert 2D texture coordinates of 4 vertices into cubemap coordinates
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* in the given face.
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* Coordinates must be in the range [0,1].
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*
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* \param face Cubemap face.
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* \param in_st 4 pairs of 2D texture coordinates to convert.
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* \param in_stride Stride of in_st in floats.
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* \param out_str STR cubemap texture coordinates to compute.
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* \param out_stride Stride of out_str in floats.
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*/
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void util_map_texcoords2d_onto_cubemap(unsigned face,
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const float *in_st, unsigned in_stride,
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float *out_str, unsigned out_stride);
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#ifdef __cplusplus
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}
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#endif
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#endif
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