1bf215546Sopenharmony_ci/*
2bf215546Sopenharmony_ci * Copyright © 2022 Google, Inc.
3bf215546Sopenharmony_ci *
4bf215546Sopenharmony_ci * Permission is hereby granted, free of charge, to any person obtaining a
5bf215546Sopenharmony_ci * copy of this software and associated documentation files (the "Software"),
6bf215546Sopenharmony_ci * to deal in the Software without restriction, including without limitation
7bf215546Sopenharmony_ci * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8bf215546Sopenharmony_ci * and/or sell copies of the Software, and to permit persons to whom the
9bf215546Sopenharmony_ci * Software is furnished to do so, subject to the following conditions:
10bf215546Sopenharmony_ci *
11bf215546Sopenharmony_ci * The above copyright notice and this permission notice (including the next
12bf215546Sopenharmony_ci * paragraph) shall be included in all copies or substantial portions of the
13bf215546Sopenharmony_ci * Software.
14bf215546Sopenharmony_ci *
15bf215546Sopenharmony_ci * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16bf215546Sopenharmony_ci * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17bf215546Sopenharmony_ci * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18bf215546Sopenharmony_ci * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19bf215546Sopenharmony_ci * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20bf215546Sopenharmony_ci * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21bf215546Sopenharmony_ci * SOFTWARE.
22bf215546Sopenharmony_ci */
23bf215546Sopenharmony_ci
24bf215546Sopenharmony_ci#ifndef FREEDRENO_COMMON_H_
25bf215546Sopenharmony_ci#define FREEDRENO_COMMON_H_
26bf215546Sopenharmony_ci
27bf215546Sopenharmony_ci
28bf215546Sopenharmony_ci/**
29bf215546Sopenharmony_ci * Helper macro to get around c++ being cranky about an enum that is a bitmask
30bf215546Sopenharmony_ci */
31bf215546Sopenharmony_ci#ifdef __cplusplus
32bf215546Sopenharmony_ci#define or_mask(d, mask)                                                       \
33bf215546Sopenharmony_ci   do {                                                                        \
34bf215546Sopenharmony_ci      decltype(mask) _d = (d);                                                 \
35bf215546Sopenharmony_ci      d = (decltype(mask))(_d | (mask));                                       \
36bf215546Sopenharmony_ci   } while (0)
37bf215546Sopenharmony_ci#else
38bf215546Sopenharmony_ci#define or_mask(d, mask)                                                       \
39bf215546Sopenharmony_ci   do {                                                                        \
40bf215546Sopenharmony_ci      d |= (mask);                                                             \
41bf215546Sopenharmony_ci   } while (0)
42bf215546Sopenharmony_ci#endif
43bf215546Sopenharmony_ci
44bf215546Sopenharmony_ci/*
45bf215546Sopenharmony_ci * swap - swap value of @a and @b
46bf215546Sopenharmony_ci */
47bf215546Sopenharmony_ci#define swap(a, b)                                                             \
48bf215546Sopenharmony_ci   do {                                                                        \
49bf215546Sopenharmony_ci      __typeof(a) __tmp = (a);                                                 \
50bf215546Sopenharmony_ci      (a) = (b);                                                               \
51bf215546Sopenharmony_ci      (b) = __tmp;                                                             \
52bf215546Sopenharmony_ci   } while (0)
53bf215546Sopenharmony_ci
54bf215546Sopenharmony_ci/* for conditionally setting boolean flag(s): */
55bf215546Sopenharmony_ci#define COND(bool, val) ((bool) ? (val) : 0)
56bf215546Sopenharmony_ci
57bf215546Sopenharmony_ci#define BIT(bit) BITFIELD_BIT(bit)
58bf215546Sopenharmony_ci
59bf215546Sopenharmony_ci#endif /* FREEDRENO_COMMON_H_ */
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