/// <summary>
/// Converts the specified 24-bit RGB value to a native binary value for the specified <see cref="DisplayPixelFormat"/>.
/// </summary>
/// <param name="format">
/// The desired <see cref="DisplayPixelFormat"/> output format.
/// </param>
/// <param name="red">
/// The 8-bit red component.
/// </param>
/// <param name="green">
/// The 8-bit green component.
/// </param>
/// <param name="blue">
/// The 8-bit blue component.
/// </param>
/// <returns>
/// The converted value.
/// </returns>
static public ushort GetNativeColor(DisplayPixelFormat format, byte red, byte green, byte blue)
{
int redBits, greenBits, blueBits; // bits per color
switch (format)
{
case DisplayPixelFormat.OneBit:
// Just return 1 if any color is greater than black
if ((red > 0) || (green > 0) || (blue > 0))
{
return(1);
}
else
{
return(0);
}
case DisplayPixelFormat.Rgb444:
redBits = greenBits = blueBits = 4;
break;
case DisplayPixelFormat.Rgb565:
redBits = blueBits = 5; // Red and Blue have 5 bits
greenBits = 6; // Green has 6 bits
break;
case DisplayPixelFormat.Rgb666:
redBits = greenBits = blueBits = 6;
break;
default:
throw new InvalidOperationException(string.Format(Strings.UnknownPixelFormat, format));
}
int x = 0;
if ((red > 0) && (green > 0) && (blue > 0))
{
x++;
}
// Apply mask // TODO: Faster algorithm?
red >>= (8 - redBits);
green >>= (8 - greenBits);
blue >>= (8 - blueBits);
// Shift and build
ushort color = blue;
color <<= greenBits;
color |= green;
color <<= redBits;
color |= red;
return(color);
}
public static ushort GetNativeColor(DisplayPixelFormat format, byte red, byte green, byte blue)
{
int redBits, greenBits, blueBits; // bits per color
switch (format)
{
case DisplayPixelFormat.OneBit:
// Just return 1 if any color is greater than black
if ((red > 0) || (green > 0) || (blue > 0))
{
return 1;
}
else
{
return 0;
}
case DisplayPixelFormat.Rgb444:
redBits = greenBits = blueBits = 4;
break;
case DisplayPixelFormat.Rgb565:
redBits = blueBits = 5; // Red and Blue have 5 bits
greenBits = 6; // Green has 6 bits
break;
case DisplayPixelFormat.Rgb666:
redBits = greenBits = blueBits = 6;
break;
default:
throw new InvalidOperationException(string.Format(Strings.UnknownPixelFormat, format));
}
int x = 0;
if ((red > 0) && (green > 0) && (blue > 0))
{
x++;
}
// Apply mask // TODO: Faster algorithm?
red >>= (8 - redBits);
green >>= (8 - greenBits);
blue >>= (8 - blueBits);
// Shift and build
ushort color = blue;
color <<= greenBits;
color |= green;
color <<= redBits;
color |= red;
return color;
}
/// <summary>
/// Gets the total bits per pixels for the specified format.
/// </summary>
/// <param name="format">
/// The format used to obtain the bit count.
/// </param>
/// <returns>
/// The number of bits per pixel.
/// </returns>
public static int GetBitsPerPixel(DisplayPixelFormat format)
{
switch (format)
{
case DisplayPixelFormat.OneBit:
return 1;
case DisplayPixelFormat.Rgb444:
return 12;
case DisplayPixelFormat.Rgb565:
return 16;
case DisplayPixelFormat.Rgb666:
return 18;
default:
throw new InvalidOperationException(string.Format(Strings.UnknownPixelFormat, format));
}
}
/// <summary>
/// Gets the total bits per pixels for the specified format.
/// </summary>
/// <param name="format">
/// The format used to obtain the bit count.
/// </param>
/// <returns>
/// The number of bits per pixel.
/// </returns>
static public int GetBitsPerPixel(DisplayPixelFormat format)
{
switch (format)
{
case DisplayPixelFormat.OneBit:
return(1);
case DisplayPixelFormat.Rgb444:
return(12);
case DisplayPixelFormat.Rgb565:
return(16);
case DisplayPixelFormat.Rgb666:
return(18);
default:
throw new InvalidOperationException(string.Format(Strings.UnknownPixelFormat, format));
}
}
/// <summary>
/// Converts the specified color to a native binary value for the specified <see cref="DisplayPixelFormat"/>.
/// </summary>
/// <param name="format">
/// The desired <see cref="DisplayPixelFormat"/> output format.
/// </param>
/// <param name="color">
/// The color to convert.
/// </param>
/// <returns>
/// The converted value.
/// </returns>
static public ushort GetNativeColor(DisplayPixelFormat format, Color color)
{
return(GetNativeColor(format, color.R, color.G, color.B));
}
public static ushort GetNativeColor(DisplayPixelFormat format, Color color)
{
return GetNativeColor(format, color.R, color.G, color.B);
}
