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      1 /*
      2 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
      3 *
      4 * Redistribution and use in source and binary forms, with or without
      5 * modification, are permitted provided that the following conditions are
      6 * met:
      7 *  * Redistributions of source code must retain the above copyright
      8 *    notice, this list of conditions and the following disclaimer.
      9 *  * Redistributions in binary form must reproduce the above
     10 *    copyright notice, this list of conditions and the following
     11 *    disclaimer in the documentation and/or other materials provided
     12 *    with the distribution.
     13 *  * Neither the name of The Linux Foundation nor the names of its
     14 *    contributors may be used to endorse or promote products derived
     15 *    from this software without specific prior written permission.
     16 *
     17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 */
     29 
     30 
     31 #ifndef __HWC_BUFFER_SYNC_HANDLER_H__
     32 #define __HWC_BUFFER_SYNC_HANDLER_H__
     33 
     34 #include <sys/mman.h>
     35 #include <fcntl.h>
     36 #include <core/sdm_types.h>
     37 #include <core/buffer_sync_handler.h>
     38 
     39 namespace sdm {
     40 
     41 class HWCBufferSyncHandler : public BufferSyncHandler {
     42  public:
     43   HWCBufferSyncHandler() { }
     44 
     45   virtual DisplayError SyncWait(int fd);
     46   virtual DisplayError SyncMerge(int fd1, int fd2, int *merged_fd);
     47   virtual bool IsSyncSignaled(int fd);
     48 };
     49 
     50 }  // namespace sdm
     51 #endif  // __HWC_BUFFER_SYNC_HANDLER_H__
     52 
     53 
     54