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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() };
}
}
}
|
