133 lines
3.5 KiB
C#
133 lines
3.5 KiB
C#
/*
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* MIT License
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*
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* Copyright (c) 2018 Bonosoft, 2021 Lars Brubaker c# port
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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using System.IO;
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/**
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* by bn on 01/07/2018.
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*/
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namespace Photon.Parts
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{
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public class PhotonFilePreview
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{
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private readonly int dataSize;
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private readonly int imageAddress;
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private int[] imageData;
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private readonly int p1;
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private readonly int p2;
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private readonly int p3;
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private readonly int p4;
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private byte[] rawImageData;
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private readonly int resolutionX;
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private readonly int resolutionY;
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public PhotonFilePreview(int previewAddress, byte[] file)
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{
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byte[] data = ArraysEmulation.CopyOfRange(file, previewAddress, previewAddress + 32);
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var ds = new BinaryReader(new MemoryStream(data));
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resolutionX = ds.ReadInt32();
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resolutionY = ds.ReadInt32();
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imageAddress = ds.ReadInt32();
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dataSize = ds.ReadInt32();
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p1 = ds.ReadInt32();
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p2 = ds.ReadInt32();
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p3 = ds.ReadInt32();
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p4 = ds.ReadInt32();
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rawImageData = ArraysEmulation.CopyOfRange(file, imageAddress, imageAddress + dataSize);
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DecodeImageData();
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}
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public int GetByteSize()
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{
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return 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + dataSize;
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}
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public int[] GetImageData()
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{
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return imageData;
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}
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public int GetResolutionX()
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{
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return resolutionX;
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}
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public int GetResolutionY()
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{
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return resolutionY;
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}
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public void Save(BinaryWriter os, int startAddress)
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{
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os.Write(resolutionX);
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os.Write(resolutionY);
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os.Write(startAddress + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4);
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os.Write(dataSize);
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os.Write(p1);
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os.Write(p2);
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os.Write(p3);
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os.Write(p4);
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os.Write(rawImageData, 0, dataSize);
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}
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public void UnLink()
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{
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rawImageData = null;
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imageData = null;
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}
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private void DecodeImageData()
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{
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imageData = new int[resolutionX * resolutionY];
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int d = 0;
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for (int i = 0; i < dataSize; i++)
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{
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int dot = rawImageData[i] & 0xFF | ((rawImageData[++i] & 0xFF) << 8);
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int color = ((dot & 0xF800) << 8) | ((dot & 0x07C0) << 5) | ((dot & 0x001F) << 3);
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// int red = ((dot >> 11) & 0x1F) << 3;
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// int green = ((dot >> 6) & 0x1F) << 3;
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// int blue = (dot & 0x1F) << 3;
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// color = red<<16 | green<<8 | blue;
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int repeat = 1;
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if ((dot & 0x0020) == 0x0020)
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{
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repeat += rawImageData[++i] & 0xFF | ((rawImageData[++i] & 0x0F) << 8);
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}
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while (repeat > 0)
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{
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imageData[d++] = color;
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repeat--;
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}
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}
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}
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}
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}
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