1 /* 2 * priority_buffer_queue.h - priority buffer queue 3 * 4 * Copyright (c) 2015 Intel Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 * Author: Wind Yuan <feng.yuan (at) intel.com> 19 */ 20 21 #ifndef XCAM_PRIORITY_BUFFER_QUEUE_H 22 #define XCAM_PRIORITY_BUFFER_QUEUE_H 23 24 #include <xcam_std.h> 25 #include <safe_list.h> 26 #include <ocl/cl_image_handler.h> 27 28 namespace XCam { 29 30 struct PriorityBuffer 31 { 32 SmartPtr<VideoBuffer> data; 33 SmartPtr<CLImageHandler> handler; 34 uint32_t rank; 35 uint32_t seq_num; 36 37 public: 38 PriorityBuffer () 39 : rank (0) 40 , seq_num (0) 41 {} 42 43 void set_seq_num (const uint32_t value) { 44 seq_num = value; 45 } 46 uint32_t get_seq_num () const { 47 return seq_num; 48 } 49 50 // when change to next rank 51 void down_rank () { 52 ++rank; 53 } 54 55 bool priority_greater_than (const PriorityBuffer& buf) const; 56 }; 57 58 class PriorityBufferQueue 59 : public SafeList<PriorityBuffer> 60 { 61 public: 62 63 PriorityBufferQueue () {} 64 ~PriorityBufferQueue () {} 65 66 bool push_priority_buf (const SmartPtr<PriorityBuffer> &buf); 67 68 private: 69 XCAM_DEAD_COPY (PriorityBufferQueue); 70 }; 71 72 }; 73 74 #endif //XCAM_PRIORITY_BUFFER_QUEUE_H 75
