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 "program.h" 27 #include "ec_log.h" 28 29 namespace OHOS { 30 namespace Rosen { 31 enum class FILTER_TYPE { INPUT, ALGOFILTER, MEGERFILTER, OUTPUT }; 32 33 struct ProcessData { 34 GLuint srcTextureID; 35 GLuint dstTextureID; 36 GLuint frameBufferID; 37 int textureWidth; 38 int textureHeight; 39 }; 40 41 class Filter { 42 public: Filter()43 Filter() {}; ~Filter()44 virtual ~Filter() {}; 45 virtual FILTER_TYPE GetFilterType() = 0; 46 virtual bool Process(ProcessData& data); 47 virtual void AddNextFilter(std::shared_ptr<Filter> next); 48 virtual void AddPreviousFilter(std::shared_ptr<Filter> previous); 49 virtual std::shared_ptr<Filter> GetNextFilter(); 50 virtual std::shared_ptr<Filter> GetPreviousFilter(); 51 virtual int GetInputNumber(); 52 virtual int GetOutputNumber(); 53 virtual int GetMaxInputNumber(); 54 virtual int GetMaxOutputNumber(); SetValue(const std::string & key,std::shared_ptr<void> value,int size)55 virtual void SetValue(const std::string& key, std::shared_ptr<void> value, int size) {}; 56 57 protected: 58 virtual void DoProcess(ProcessData& data) = 0; 59 int nextNum_ = 0; 60 int preNum_ = 0; 61 int nextPtrMax_ = 1; 62 int prePtrMax_ = 1; 63 std::shared_ptr<Filter> previous_ = nullptr; 64 std::shared_ptr<Filter> next_ = nullptr; 65 }; 66 } // namespace Rosen 67 } // namespace OHOS 68 #endif // FILTER_H 69