| 1 | /***************************************************************************** |
| 2 | * Copyright (C) 2013 x265 project |
| 3 | * |
| 4 | * Authors: Steve Borho <steve@borho.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. |
| 19 | * |
| 20 | * This program is also available under a commercial proprietary license. |
| 21 | * For more information, contact us at license @ x265.com |
| 22 | *****************************************************************************/ |
| 23 | |
| 24 | #ifndef X265_WINXP_H |
| 25 | #define X265_WINXP_H |
| 26 | |
| 27 | #if defined(_WIN32) && (_WIN32_WINNT < 0x0600) // _WIN32_WINNT_VISTA |
| 28 | |
| 29 | #ifdef _MSC_VER |
| 30 | #include <intrin.h> // _InterlockedCompareExchange64 |
| 31 | #endif |
| 32 | |
| 33 | namespace x265 { |
| 34 | /* non-native condition variable */ |
| 35 | typedef struct |
| 36 | { |
| 37 | CRITICAL_SECTION broadcastMutex; |
| 38 | CRITICAL_SECTION waiterCountMutex; |
| 39 | HANDLE semaphore; |
| 40 | HANDLE waitersDone; |
| 41 | volatile int waiterCount; |
| 42 | volatile int bIsBroadcast; |
| 43 | } ConditionVariable; |
| 44 | |
| 45 | int WINAPI cond_init(ConditionVariable *cond); |
| 46 | void WINAPI cond_broadcast(ConditionVariable *cond); |
| 47 | void WINAPI cond_signal(ConditionVariable *cond); |
| 48 | BOOL WINAPI cond_wait(ConditionVariable *cond, CRITICAL_SECTION *mutex, DWORD wait); |
| 49 | void cond_destroy(ConditionVariable *cond); |
| 50 | |
| 51 | /* map missing API symbols to our structure and functions */ |
| 52 | #define CONDITION_VARIABLE x265::ConditionVariable |
| 53 | #define InitializeConditionVariable x265::cond_init |
| 54 | #define SleepConditionVariableCS x265::cond_wait |
| 55 | #define WakeConditionVariable x265::cond_signal |
| 56 | #define WakeAllConditionVariable x265::cond_broadcast |
| 57 | #define XP_CONDITION_VAR_FREE x265::cond_destroy |
| 58 | |
| 59 | } // namespace x265 |
| 60 | |
| 61 | #else // if defined(_WIN32) && (_WIN32_WINNT < 0x0600) |
| 62 | |
| 63 | #define XP_CONDITION_VAR_FREE(x) |
| 64 | |
| 65 | #endif // _WIN32_WINNT <= _WIN32_WINNT_WINXP |
| 66 | |
| 67 | #endif // ifndef X265_WINXP_H |