/// <summary>
/// Reads the 16 bit color palette from the stream
/// </summary>
/// <typeparam name="TColor">The pixel format.</typeparam>
/// <typeparam name="TPacked">The packed format. <example>uint, long, float.</example></typeparam>
/// <param name="pixels">The <see cref="PixelAccessor{TColor, TPacked}"/> to assign the palette to.</param>
/// <param name="width">The width of the bitmap.</param>
/// <param name="height">The height of the bitmap.</param>
/// <param name="inverted">Whether the bitmap is inverted.</param>
private void ReadRgb16 <TColor, TPacked>(PixelAccessor <TColor, TPacked> pixels, int width, int height, bool inverted)
where TColor : struct, IPackedPixel <TPacked>
where TPacked : struct
{
// We divide here as we will store the colors in our floating point format.
const int ScaleR = 8; // 256/32
const int ScaleG = 4; // 256/64
const int ComponentCount = 2;
TColor color = default(TColor);
using (PixelRow <TColor, TPacked> row = new PixelRow <TColor, TPacked>(width, ComponentOrder.XYZ))
{
for (int y = 0; y < height; y++)
{
row.Read(this.currentStream);
int newY = Invert(y, height, inverted);
int offset = 0;
for (int x = 0; x < width; x++)
{
short temp = BitConverter.ToInt16(row.Bytes, offset);
byte r = (byte)(((temp & Rgb16RMask) >> 11) * ScaleR);
byte g = (byte)(((temp & Rgb16GMask) >> 5) * ScaleG);
byte b = (byte)((temp & Rgb16BMask) * ScaleR);
color.PackFromBytes(r, g, b, 255);
pixels[x, newY] = color;
offset += ComponentCount;
}
}
}
}
/// <summary>
/// Reads the 32 bit color palette from the stream
/// </summary>
/// <typeparam name="TColor">The pixel format.</typeparam>
/// <typeparam name="TPacked">The packed format. <example>uint, long, float.</example></typeparam>
/// <param name="pixels">The <see cref="PixelAccessor{TColor, TPacked}"/> to assign the palette to.</param>
/// <param name="width">The width of the bitmap.</param>
/// <param name="height">The height of the bitmap.</param>
/// <param name="inverted">Whether the bitmap is inverted.</param>
private void ReadRgb32 <TColor, TPacked>(PixelAccessor <TColor, TPacked> pixels, int width, int height, bool inverted)
where TColor : struct, IPackedPixel <TPacked>
where TPacked : struct
{
int padding = CalculatePadding(width, 4);
using (PixelRow <TColor, TPacked> row = new PixelRow <TColor, TPacked>(width, ComponentOrder.ZYXW, padding))
{
for (int y = 0; y < height; y++)
{
row.Read(this.currentStream);
int newY = Invert(y, height, inverted);
pixels.CopyFrom(row, newY);
}
}
}
