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| using System; using System.Collections.Generic; using System.Text; using PaintDotNet; using PaintDotNet.Data; using System.IO; using System.Drawing; using System.Windows.Forms; using System.Drawing.Imaging;
namespace MifFileType { public class MifFileType : FileType { public MifFileType() : base("MIF Files", FileTypeFlags.SupportsLoading | FileTypeFlags.SupportsLayers, new String[] { ".mif" }) { }
protected override Document OnLoad(Stream input) { if (input.Length < 20) { MessageBox.Show("Invalid MIF File", "UMU Corporation - MifFileTypePlugIn", MessageBoxButtons.OK, MessageBoxIcon.Error);
Bitmap b = new Bitmap(800, 600); return Document.FromImage(b); }
try { BinaryReader br = new BinaryReader(input);
int MifVersion = br.ReadInt32(); int FrameWidth = br.ReadInt32(); int FrameHeight = br.ReadInt32(); int MifType = br.ReadInt32(); int FrameCount = br.ReadInt32();
int ImageWidth = FrameWidth; int ImageHeight = FrameHeight * FrameCount;
bool Valid = true; long Prefix;
if (MifType == 3) { Prefix = 20; } else if (MifType == 7) { Prefix = 20 + 4 * FrameCount; } else { MessageBox.Show("Invalid MIF File", "UMU Corporation - MifFileTypePlugIn", MessageBoxButtons.OK, MessageBoxIcon.Error);
Bitmap b = new Bitmap(800, 600); return Document.FromImage(b); }
if (MifVersion == 0) { if (Prefix + ImageWidth * ImageHeight * 3 != input.Length) { Valid = false; } } else if (MifVersion == 1) { if (Prefix + ImageWidth * ImageHeight * 3 > input.Length) { Valid = false; } }
if (!Valid) { MessageBox.Show("Invalid MIF File", "UMU Corporation - MifFileTypePlugIn", MessageBoxButtons.OK, MessageBoxIcon.Error);
Bitmap b = new Bitmap(800, 600); return Document.FromImage(b); }
Bitmap bmp = new Bitmap(ImageWidth, ImageHeight);
for (int CurrentFrame = 0; CurrentFrame < FrameCount; ++CurrentFrame) { if (MifType == 7) { input.Seek(4, SeekOrigin.Current); }
UInt16[] rgb16 = new UInt16[FrameWidth * FrameHeight];
for (int i = 0; i < FrameHeight * FrameWidth; ++i) { rgb16[i] = br.ReadUInt16(); }
Byte[] a8 = new Byte[FrameWidth * FrameHeight];
for (int i = 0; i < FrameHeight * FrameWidth; ++i) { a8[i] = br.ReadByte(); }
for (int y = 0; y < FrameHeight; ++y) { for (int x = 0; x < FrameWidth; ++x) { int a = a8[x + y * FrameWidth]; int r = (rgb16[x + y * FrameWidth] & 0xF800) >> 8; int g = (rgb16[x + y * FrameWidth] & 0x07E0) >> 3; int b = (rgb16[x + y * FrameWidth] & 0x001F) << 3;
if (a == 32) { a = 255; } else if (a > 0) { a <<= 3; }
bmp.SetPixel(x, FrameHeight * CurrentFrame + y, Color.FromArgb(a, r, g, b)); } } }
br.Close(); return Document.FromImage(bmp); } catch (Exception ex) { MessageBox.Show(ex.Message, "UMU Corporation - MifFileTypePlugIn", MessageBoxButtons.OK, MessageBoxIcon.Warning);
Bitmap bmp = new Bitmap(800, 600); return Document.FromImage(bmp); } } }
public class MifFileTypeFactory : IFileTypeFactory { public FileType[] GetFileTypeInstances() { return new FileType[] { new MifFileType() }; } } }
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