1 // Copyright 2019 The Amber Authors. 2 // 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 #ifndef SAMPLES_PNG_H_ 16 #define SAMPLES_PNG_H_ 17 18 #include <string> 19 #include <utility> 20 #include <vector> 21 22 #include "amber/amber.h" 23 24 namespace png { 25 26 /// Converts the image of dimensions |width| and |height| and with pixels stored 27 /// in row-major order in |values| with format B8G8R8A8 into PNG format, 28 /// returning the PNG binary as a string. 29 amber::Result ConvertToPNG(uint32_t width, 30 uint32_t height, 31 const std::vector<amber::Value>& values, 32 std::vector<uint8_t>* buffer); 33 34 /// Loads a PNG image from |file_name|. Image dimensions of the loaded file are 35 /// stored into |width| and |height|, and the image data is stored in a one 36 /// byte per data element format into |values|. 37 amber::Result LoadPNG(const std::string file_name, 38 uint32_t* width, 39 uint32_t* height, 40 std::vector<amber::Value>* values); 41 42 } // namespace png 43 44 #endif // SAMPLES_PNG_H_ 45