1 /* 2 * Copyright © 2020 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 */ 23 24 #ifdef __cplusplus 25 26 // some enum helpers 27 #define MESA_DEFINE_CPP_ENUM_BINARY_OPERATOR(Enum, op) \ 28 extern "C++" { \ 29 static inline \ 30 Enum operator op (Enum a, Enum b) \ 31 { \ 32 uint64_t ua = a, ub = b; \ 33 return static_cast<Enum>(ua op ub); \ 34 } \ 35 \ 36 static inline \ 37 Enum& operator op##= (Enum &a, Enum b) \ 38 { \ 39 uint64_t ua = a, ub = b; \ 40 ua op##= ub; \ 41 a = static_cast<Enum>(ua); \ 42 return a; \ 43 } \ 44 } 45 46 #define MESA_DEFINE_CPP_ENUM_UNARY_OPERATOR(Enum, op) \ 47 extern "C++" { \ 48 static inline \ 49 Enum operator op (Enum a) \ 50 { \ 51 uint64_t ua = a; \ 52 return static_cast<Enum>(op ua); \ 53 } \ 54 } 55 56 #define MESA_DEFINE_CPP_ENUM_BITFIELD_OPERATORS(Enum) \ 57 MESA_DEFINE_CPP_ENUM_BINARY_OPERATOR(Enum, |) \ 58 MESA_DEFINE_CPP_ENUM_BINARY_OPERATOR(Enum, &) \ 59 MESA_DEFINE_CPP_ENUM_BINARY_OPERATOR(Enum, ^) \ 60 MESA_DEFINE_CPP_ENUM_UNARY_OPERATOR(Enum, ~) 61 62 #else 63 64 #define MESA_DEFINE_CPP_ENUM_BITFIELD_OPERATORS(Enum) 65 66 #endif 67