46 lines
947 B
Java
46 lines
947 B
Java
/*
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* Copyright 2019 Zhou Pengfei
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* SPDX-License-Identifier: Apache-2.0
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*/
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package org.signal.glide.apng.decode;
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import org.signal.glide.apng.io.APNGReader;
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import java.io.IOException;
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/**
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* The IHDR chunk shall be the first chunk in the PNG datastream. It contains:
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* <p>
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* Width 4 bytes
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* Height 4 bytes
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* Bit depth 1 byte
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* Colour type 1 byte
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* Compression method 1 byte
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* Filter method 1 byte
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* Interlace method 1 byte
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*
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* @Author: pengfei.zhou
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* @CreateDate: 2019/3/27
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*/
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class IHDRChunk extends Chunk {
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static final int ID = fourCCToInt("IHDR");
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/**
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* 图像宽度，以像素为单位
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*/
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int width;
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/**
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* 图像高度，以像素为单位
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*/
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int height;
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byte[] data = new byte[5];
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@Override
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void innerParse(APNGReader reader) throws IOException {
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width = reader.readInt();
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height = reader.readInt();
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reader.read(data, 0, data.length);
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}
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}
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