1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef FILTER_H 17 #define FILTER_H 18 19 #include <memory> 20 #include <string> 21 #include <vector> 22 #include <iostream> 23 #include <fstream> 24 #include <sstream> 25 #include <GLES3/gl32.h> 26 #include "cJSON.h" 27 #include "program.h" 28 #include "ec_log.h" 29 30 namespace OHOS { 31 namespace Rosen { 32 enum class FILTER_TYPE { INPUT, ALGOFILTER, MEGERFILTER, OUTPUT }; 33 34 struct ProcessData { 35 GLuint srcTextureID; 36 GLuint dstTextureID; 37 GLuint frameBufferID; 38 int textureWidth; 39 int textureHeight; 40 }; 41 42 class Filter { 43 public: Filter()44 Filter() {}; ~Filter()45 virtual ~Filter() {}; 46 virtual FILTER_TYPE GetFilterType() = 0; 47 virtual void Process(ProcessData& data); 48 virtual void DoProcess(ProcessData& data) = 0; 49 virtual void AddNextFilter(std::shared_ptr<Filter> next); 50 virtual void AddPreviousFilter(std::shared_ptr<Filter> previous); 51 virtual std::shared_ptr<Filter> GetNextFilter(); 52 virtual std::shared_ptr<Filter> GetPreviousFilter(); 53 virtual int GetInputNumber(); 54 virtual int GetOutputNumber(); 55 virtual int GetMaxInputNumber(); 56 virtual int GetMaxOutputNumber(); SetValue(const std::string & key,void * value,int size)57 virtual void SetValue(const std::string& key, void* value, int size) {}; 58 59 protected: 60 int nextNum_ = 0; 61 int preNum_ = 0; 62 int nextPtrMax_ = 1; 63 int prePtrMax_ = 1; 64 std::shared_ptr<Filter> previous_ = nullptr; 65 std::shared_ptr<Filter> next_ = nullptr; 66 }; 67 } // namespace Rosen 68 } // namespace OHOS 69 #endif // FILTER_H 70