private static void Write(BinaryWriter writer, BmpFileHeader fileHeader)
{
writer.Write(fileHeader.Type);
writer.Write(fileHeader.FileSize);
writer.Write(fileHeader.Reserved);
writer.Write(fileHeader.Offset);
}
private void ReadFileHeader()
{
byte[] data = new byte[BmpFileHeader.Size];
_stream.Read(data, 0, BmpFileHeader.Size);
_fileHeader = new BmpFileHeader();
_fileHeader.Type = BitConverter.ToInt16(data, 0);
_fileHeader.FileSize = BitConverter.ToInt32(data, 2);
_fileHeader.Reserved = BitConverter.ToInt32(data, 6);
_fileHeader.Offset = BitConverter.ToInt32(data, 10);
}
/// <summary>
/// Encodes the data of the specified image and writes the result to
/// the specified stream.
/// </summary>
/// <param name="image">The image, where the data should be get from.
/// Cannot be null (Nothing in Visual Basic).</param>
/// <param name="stream">The stream, where the image data should be written to.
/// Cannot be null (Nothing in Visual Basic).</param>
/// <exception cref="ArgumentNullException">
/// <para><paramref name="image"/> is null (Nothing in Visual Basic).</para>
/// <para>- or -</para>
/// <para><paramref name="stream"/> is null (Nothing in Visual Basic).</para>
/// </exception>
public void Encode(ExtendedImage image, Stream stream)
{
Guard.NotNull(image, "image");
Guard.NotNull(stream, "stream");
int rowWidth = image.PixelWidth;
int amount = (image.PixelWidth * 3) % 4;
if (amount != 0)
{
rowWidth += 4 - amount;
}
BinaryWriter writer = new BinaryWriter(stream);
BmpFileHeader fileHeader = new BmpFileHeader();
fileHeader.Type = 19778;
fileHeader.Offset = 54;
fileHeader.FileSize = 54 + image.PixelHeight * rowWidth * 3;
Write(writer, fileHeader);
BmpInfoHeader infoHeader = new BmpInfoHeader();
infoHeader.HeaderSize = 40;
infoHeader.Height = image.PixelHeight;
infoHeader.Width = image.PixelWidth;
infoHeader.BitsPerPixel = 24;
infoHeader.Planes = 1;
infoHeader.Compression = BmpCompression.RGB;
infoHeader.ImageSize = image.PixelHeight * rowWidth * 3;
infoHeader.ClrUsed = 0;
infoHeader.ClrImportant = 0;
Write(writer, infoHeader);
WriteImage(writer, image);
writer.Flush();
}
/// <summary>
/// Encodes the data of the specified image and writes the result to
/// the specified stream.
/// </summary>
/// <param name="image">The image, where the data should be get from.
/// Cannot be null (Nothing in Visual Basic).</param>
/// <param name="stream">The stream, where the image data should be written to.
/// Cannot be null (Nothing in Visual Basic).</param>
/// <exception cref="ArgumentNullException">
/// <para><paramref name="image"/> is null (Nothing in Visual Basic).</para>
/// <para>- or -</para>
/// <para><paramref name="stream"/> is null (Nothing in Visual Basic).</para>
/// </exception>
public void Encode(ExtendedImage image, Stream stream)
{
Guard.NotNull(image, "image");
Guard.NotNull(stream, "stream");
int rowWidth = image.PixelWidth;
int amount = (image.PixelWidth * 3) % 4;
if (amount != 0)
{
rowWidth += 4 - amount;
}
BinaryWriter writer = new BinaryWriter(stream);
BmpFileHeader fileHeader = new BmpFileHeader();
fileHeader.Type = 19778;
fileHeader.Offset = 54;
fileHeader.FileSize = 54 + image.PixelHeight * rowWidth * 3;
Write(writer, fileHeader);
BmpInfoHeader infoHeader = new BmpInfoHeader();
infoHeader.HeaderSize = 40;
infoHeader.Height = image.PixelHeight;
infoHeader.Width = image.PixelWidth;
infoHeader.BitsPerPixel = 24;
infoHeader.Planes = 1;
infoHeader.Compression = BmpCompression.RGB;
infoHeader.ImageSize = image.PixelHeight * rowWidth * 3;
infoHeader.ClrUsed = 0;
infoHeader.ClrImportant = 0;
Write(writer, infoHeader);
WriteImage(writer, image);
writer.Flush();
}
private static void Write(BinaryWriter writer, BmpFileHeader fileHeader)
{
writer.Write(fileHeader.Type);
writer.Write(fileHeader.FileSize);
writer.Write(fileHeader.Reserved);
writer.Write(fileHeader.Offset);
}
private void ReadFileHeader()
{
byte[] data = new byte[BmpFileHeader.Size];
_stream.Read(data, 0, BmpFileHeader.Size);
_fileHeader = new BmpFileHeader();
_fileHeader.Type = BitConverter.ToInt16(data, 0);
_fileHeader.FileSize = BitConverter.ToInt32(data, 2);
_fileHeader.Reserved = BitConverter.ToInt32(data, 6);
_fileHeader.Offset = BitConverter.ToInt32(data, 10);
}
