xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/amd/display/dc/basics/conversion.h (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: conversion.h,v 1.2 2021/12/18 23:45:00 riastradh Exp $	*/
2 
3 /*
4  * Copyright 2012-15 Advanced Micro Devices, Inc.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: AMD
25  *
26  */
27 
28 #ifndef __DAL_CONVERSION_H__
29 #define __DAL_CONVERSION_H__
30 
31 #include "include/fixed31_32.h"
32 
33 uint16_t fixed_point_to_int_frac(
34 	struct fixed31_32 arg,
35 	uint8_t integer_bits,
36 	uint8_t fractional_bits);
37 
38 void convert_float_matrix(
39 	uint16_t *matrix,
40 	struct fixed31_32 *flt,
41 	uint32_t buffer_size);
42 
log_2(unsigned int num)43 static inline unsigned int log_2(unsigned int num)
44 {
45 	return ilog2(num);
46 }
47 
48 #endif
49