public void Encode()
{
IconHeader header = new IconHeader()
{
reserved = 0,
type = 1,
count = ( ushort )entries.Count,
};
WriteToStream <IconHeader> (outputStream, header);
uint totalWritten = ( uint )Marshal.SizeOf <IconHeader> ()
+ ( uint )entries.Count * ( uint )Marshal.SizeOf <EntryHeader> ();
foreach (var pair in entries)
{
var entryHeader = pair.Value;
entryHeader.fileOffset = totalWritten;
WriteToStream <EntryHeader> (outputStream, entryHeader);
totalWritten += ( uint )pair.Key.Length;
}
byte [] buffer = new byte [4194304];
foreach (var pair in entries)
{
var stream = pair.Key;
int totalCopy = 0;
while (totalCopy < stream.Length)
{
int read = stream.Read(buffer, 0, buffer.Length);
outputStream.Write(buffer, 0, read);
totalCopy += read;
}
}
outputStream.Flush();
}
private unsafe void Parse(Stream str)
{
using (BinaryReader br = new BinaryReader(str))
{
br.ReadUInt32(); // headerLength
ushort version = br.ReadUInt16();
if (version != 1)
{
throw new InvalidDataException("Only version 1 of BNI files is supported.");
}
br.ReadUInt16();
uint numIcons = br.ReadUInt32();
br.ReadUInt32(); // dataStart
List <IconHeader> icons = new List <IconHeader>(unchecked ((int)numIcons));
for (int i = 0; i < numIcons; i++)
{
icons.Add(new IconHeader(br));
}
// now onto the TGA header
byte infoLength = br.ReadByte();
br.ReadByte(); // color map type, unsupported
if (br.ReadByte() != 0x0a) // run-length true-color; others unsupported
{
throw new InvalidDataException("Only run-length true-color TGA icons are supported.");
}
br.ReadBytes(5); // color map data, ignored
br.ReadUInt16(); // xOrigin
br.ReadUInt16(); // yOrigin
ushort width = br.ReadUInt16();
ushort height = br.ReadUInt16();
byte depth = br.ReadByte();
if (depth != 24)
{
throw new InvalidDataException("Only 24-bit TGA is supported.");
}
StartDescriptor descriptor = (StartDescriptor)br.ReadByte();
byte[] info_bytes = br.ReadBytes(infoLength);
Trace.WriteLine(Encoding.ASCII.GetString(info_bytes), "BNI header: information");
int numberOfPixels = width * height;
using (Bitmap bmp = new Bitmap(width, height))
{
BitmapData data = bmp.LockBits(new Rectangle(Point.Empty, new Size(width, height)), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
int * currentPixel = (int *)data.Scan0.ToPointer();
for (int i = 0; i < numberOfPixels;)
{
byte packetType = br.ReadByte();
byte packetPixelCount = (byte)((packetType & 0x7f) + 1); // number of pixels in the current pixel packet
if ((packetType & 0x80) == 0x80) // check to see if MSB is set
{
byte nextBlue = br.ReadByte();
byte nextGreen = br.ReadByte();
byte nextRed = br.ReadByte();
Color c = Color.FromArgb(255, nextRed, nextGreen, nextBlue);
for (int pixel = 0; pixel < packetPixelCount; pixel++)
{
*currentPixel = c.ToArgb();
currentPixel++;
}
}
else
{
for (int pixel = 0; pixel < packetPixelCount; pixel++)
{
byte nextBlue = br.ReadByte();
byte nextGreen = br.ReadByte();
byte nextRed = br.ReadByte();
Color c = Color.FromArgb(255, nextRed, nextGreen, nextBlue);
* currentPixel = c.ToArgb();
currentPixel++;
}
}
i += packetPixelCount;
}
currentPixel = null;
bmp.UnlockBits(data);
m_fullImage = new Bitmap(width, height);
if (descriptor == StartDescriptor.TopRight)
{
//m_fullImage.RotateFlip(RotateFlipType.RotateNoneFlipX);
bmp.RotateFlip(RotateFlipType.RotateNoneFlipX);
}
else if (descriptor == StartDescriptor.BottomLeft)
{
//m_fullImage.RotateFlip(RotateFlipType.RotateNoneFlipY);
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
}
else if (descriptor == StartDescriptor.BottomRight)
{
bmp.RotateFlip(RotateFlipType.RotateNoneFlipXY);
}
using (Graphics g = Graphics.FromImage(m_fullImage))
{
g.DrawImage(bmp, Point.Empty);
}
int currentY = 0;
for (int i = 0; i < numIcons; i++)
{
IconHeader header = icons[i];
Bitmap icon = new Bitmap(bmp, (int)width, (int)header.height);
using (Graphics g = Graphics.FromImage(icon))
{
Size nextIcon = new Size((int)width, (int)header.height);
g.DrawImage(bmp, new Rectangle(Point.Empty, nextIcon),
new Rectangle(new Point(0, currentY), nextIcon), GraphicsUnit.Pixel);
}
BniIcon curIcon = new BniIcon(icon, unchecked ((int)header.flagValue), header.software);
m_icons.Add(curIcon);
currentY += unchecked ((int)header.height);
}
}
}
}
