1 /* 2 * cl_3a_stats_context.h - CL 3a stats context 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@intel.com> 19 */ 20 21 #ifndef XCAM_CL_3A_STATS_CONTEXT_H 22 #define XCAM_CL_3A_STATS_CONTEXT_H 23 24 #include <xcam_std.h> 25 #include <x3a_stats_pool.h> 26 #include <ocl/cl_memory.h> 27 #include <ocl/cl_context.h> 28 29 #define XCAM_CL_3A_STATS_BUFFER_COUNT 6 30 31 namespace XCam { 32 33 class CL3AStatsCalculatorContext 34 { 35 public: 36 struct CL3AStatsStruct { 37 uint16_t avg_y; 38 uint16_t avg_r; 39 uint16_t avg_gr; 40 uint16_t avg_gb; 41 uint16_t avg_b; 42 uint16_t valid_wb_count; 43 uint16_t f_value1; 44 uint16_t f_value2; 45 }; 46 47 public: 48 CL3AStatsCalculatorContext (const SmartPtr<CLContext> &context); 49 ~CL3AStatsCalculatorContext (); 50 void set_bit_depth (uint32_t bits); 51 is_ready()52 bool is_ready () const { 53 return _data_allocated; 54 } 55 bool allocate_data (const VideoBufferInfo &buffer_info, uint32_t width_factor, uint32_t height_factor); 56 void pre_stop (); 57 void clean_up_data (); 58 59 SmartPtr<CLBuffer> get_buffer (); 60 bool release_buffer (SmartPtr<CLBuffer> &buf); 61 SmartPtr<X3aStats> copy_stats_out (const SmartPtr<CLBuffer> &stats_cl_buf); 62 63 private: 64 XCAM_DEAD_COPY (CL3AStatsCalculatorContext); 65 66 bool fill_histogram (XCam3AStats *stats); 67 68 private: 69 SmartPtr<CLContext> _context; 70 SmartPtr<X3aStatsPool> _stats_pool; 71 SafeList<CLBuffer> _stats_cl_buffers; 72 uint32_t _stats_mem_size; 73 uint32_t _width_factor; 74 uint32_t _height_factor; 75 uint32_t _factor_shift; 76 XCam3AStatsInfo _stats_info; 77 bool _data_allocated; 78 }; 79 80 } 81 #endif //XCAM_CL_3A_STATS_CONTEXT_H 82