public static Imgd Create(
Size size,
PixelFormat pixelFormat,
byte[] data,
byte[] clut,
bool isSwizzled) =>
new Imgd(size, pixelFormat, ImageDataHelpers.GetInvertedRedBlueChannels(data, size, pixelFormat), clut, isSwizzled);
private RawBitmap(Stream stream, int width, int height, bool is8bit, bool defaultPaletteSwitch = false)
{
Size = new Size(width, height);
PixelFormat = is8bit ? PixelFormat.Indexed8 : PixelFormat.Indexed4;
var reader = new BinaryReader(stream);
var bpp = is8bit ? 8 : 4;
_data = reader.ReadBytes(width * height * bpp / 8);
if (bpp == 4)
{
ImageDataHelpers.SwapEndianIndexed4(_data);
}
// If we did not reached the end of the stream, then it does mean that there is a palette
if (stream.Position < stream.Length)
{
_clut = reader.ReadBytes(PaletteCount * BitsPerColor / 8);
}
else
{
// Just assign a default palette
_clut = defaultPaletteSwitch ? FontPalette2 : FontPalette1;
}
}
public static byte[] AsRgba8888(this IImageRead image)
{
switch (image.PixelFormat)
{
case PixelFormat.Indexed4:
return(ImageDataHelpers.FromIndexed4ToBitmap32(
image.GetData(), image.GetClut(), Rgba));
case PixelFormat.Indexed8:
return(ImageDataHelpers.FromIndexed8ToBitmap32(
image.GetData(), image.GetClut(), Rgba));
case PixelFormat.Rgba8888:
return(ImageDataHelpers.FromBitmap32(image.GetData(), Bgra));
default:
throw new ArgumentException($"The pixel format {image.PixelFormat} is not supported.");
}
}
public void Decode4bppTest()
{
var actual = ImageDataHelpers.FromIndexed4ToBitmap32(Data4bpp, Clut4bpp, ImageDataHelpers.RGBA);
Assert.Equal(ExpectedFrom4bpp, actual);
}
