| /* |
| * Copyright (c) 2014 - 2015, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, are permitted |
| * provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright notice, this list of |
| * conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright notice, this list of |
| * conditions and the following disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its contributors may be used to |
| * endorse or promote products derived from this software without specific prior written |
| * permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __CONSTANTS_H__ |
| #define __CONSTANTS_H__ |
| |
| #include <stdlib.h> |
| |
| #define LIKELY(exp) __builtin_expect((exp) != 0, true) |
| #define UNLIKELY(exp) __builtin_expect((exp) != 0, false) |
| |
| #define INT(exp) static_cast<int>(exp) |
| #define FLOAT(exp) static_cast<float>(exp) |
| #define UINT8(exp) static_cast<uint8_t>(exp) |
| #define UINT32(exp) static_cast<uint32_t>(exp) |
| #define INT32(exp) static_cast<int32_t>(exp) |
| |
| #define STRUCT_VAR(struct_name, var_name) \ |
| struct struct_name var_name; \ |
| memset(&var_name, 0, sizeof(var_name)); |
| |
| #define STRUCT_VAR_ARRAY(struct_name, var_name, num_var) \ |
| struct struct_name var_name[num_var]; \ |
| memset(&var_name[0], 0, sizeof(var_name)); |
| |
| #define ROUND_UP(number, step) ((((number) + ((step) - 1)) / (step)) * (step)) |
| |
| #define SET_BIT(value, bit) (value |= (1 << (bit))) |
| #define CLEAR_BIT(value, bit) (value &= (~(1 << (bit)))) |
| #define IS_BIT_SET(value, bit) (value & (1 << (bit))) |
| |
| #define MAX(a, b) (((a) > (b)) ? (a) : (b)) |
| #define MIN(a, b) (((a) < (b)) ? (a) : (b)) |
| |
| template <class T> |
| inline void Swap(T &a, T &b) { |
| T c(a); |
| a = b; |
| b = c; |
| } |
| |
| // factor value should be in powers of 2(eg: 1, 2, 4, 8) |
| template <class T1, class T2> |
| inline T1 FloorToMultipleOf(const T1 &value, const T2 &factor) { |
| return (T1)(value & (~(factor - 1))); |
| } |
| |
| template <class T1, class T2> |
| inline T1 CeilToMultipleOf(const T1 &value, const T2 &factor) { |
| return (T1)((value + (factor - 1)) & (~(factor - 1))); |
| } |
| |
| namespace sde { |
| |
| const int kThreadPriorityUrgent = -9; |
| const int kMaxRotatePerLayer = 2; |
| |
| typedef void * Handle; |
| |
| } // namespace sde |
| |
| #endif // __CONSTANTS_H__ |
| |