xref: /xsrc/external/mit/MesaLib/dist/src/util/rgtc.h

/*
 * Copyright © 2014 Red Hat
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 *
 */

#ifndef _RGTC_H
#define _RGTC_H

void util_format_unsigned_fetch_texel_rgtc(unsigned srcRowStride, const unsigned char *pixdata,
                                           unsigned i, unsigned j, unsigned char *value, unsigned comps);

void util_format_signed_fetch_texel_rgtc(unsigned srcRowStride, const signed char *pixdata,
                                           unsigned i, unsigned j, signed char *value, unsigned comps);

void util_format_unsigned_encode_rgtc_ubyte(unsigned char *blkaddr, unsigned char srccolors[4][4],
                                            int numxpixels, int numypixels);

void util_format_signed_encode_rgtc_ubyte(signed char *blkaddr, signed char srccolors[4][4],
                                            int numxpixels, int numypixels);
#endif /* _RGTC_H */