public static BitmapFile ReadIndexed(BinaryReader seekableReader)
{
BitmapFile bitmapFile = new BitmapFile();
bitmapFile.bmpHeader = ReadBmpHeader(seekableReader);
bitmapFile.imageHeader = ReadImageHeader(seekableReader);
ReadPalette(seekableReader, bitmapFile);
ReadPixels(seekableReader, bitmapFile);
return(bitmapFile);
}
public BitmapFile Clone()
{
BitmapFile bmp = new BitmapFile();
bmp.bmpHeader = bmpHeader.Clone();
bmp.imageHeader = imageHeader.Clone();
bmp.palette = new Color[palette.Length];
System.Array.Copy(palette, bmp.palette, palette.Length);
bmp.pixels = new byte[pixels.Length];
System.Array.Copy(pixels, bmp.pixels, pixels.Length);
return(bmp);
}
private static void ReadPixels(BinaryReader seekableReader, BitmapFile bitmapFile)
{
uint pixelContainerSize = bitmapFile.bmpHeader.size - bitmapFile.bmpHeader.pixelOffset;
VerifyPixelSizeMatchesImageDimensionsWithPitch(bitmapFile.imageHeader.bitCount, bitmapFile.imageHeader.width, bitmapFile.imageHeader.height, (int)pixelContainerSize);
bitmapFile.pixels = new byte[pixelContainerSize];
for (int i = 0; i < bitmapFile.pixels.Length; ++i)
{
bitmapFile.pixels[i] = seekableReader.ReadByte();
}
}
private static void ReadPalette(BinaryReader seekableReader, BitmapFile bitmapFile)
{
if (bitmapFile.imageHeader.usedColorMapEntries != 0)
{
bitmapFile.palette = new Color[bitmapFile.imageHeader.usedColorMapEntries];
}
else
{
bitmapFile.palette = new Color[bitmapFile.imageHeader.CalcMaxIndexedPaletteSize()];
}
for (int i = 0; i < bitmapFile.palette.Length; ++i)
{
bitmapFile.palette[i] = new Color(seekableReader);
}
}
public override bool Equals(object obj)
{
BitmapFile rhs = obj as BitmapFile;
return(this == rhs);
}
