private byte[] TransformRgb24(int width, int height, byte[] frame, IFixedSizeDestination dest)
{
if (dest == null) {
return TransformationUtil.Flip(width, height, 3, frame, FlipHorizontally, FlipVertically);
}
var bmp = ImageUtil.ConvertFromRgb24(width, height, frame);
var transformedBmp = TransformationUtil.Transform(bmp, dest.DmdWidth, dest.DmdHeight, Resize, FlipHorizontally, FlipVertically);
var transformedFrame = new byte[dest.DmdWidth*dest.DmdHeight*3];
ImageUtil.ConvertToRgb24(transformedBmp, transformedFrame);
return transformedFrame;
}
private byte[] TransformGray4(int width, int height, byte[] frame, IFixedSizeDestination dest)
{
if (dest == null) {
return TransformationUtil.Flip(width, height, 1, frame, FlipHorizontally, FlipVertically);
}
if (width == dest.DmdWidth && height == dest.DmdHeight && !FlipHorizontally && !FlipVertically) {
return frame;
}
var bmp = ImageUtil.ConvertFromGray4(width, height, frame, 0, 1, 1);
var transformedBmp = TransformationUtil.Transform(bmp, dest.DmdWidth, dest.DmdHeight, Resize, FlipHorizontally, FlipVertically);
var transformedFrame = ImageUtil.ConvertToGray4(transformedBmp);
return transformedFrame;
}
private BitmapSource Transform(BitmapSource bmp, IFixedSizeDestination dest)
{
if (dest == null && !FlipHorizontally && !FlipVertically) {
return bmp;
}
int width, height;
if (dest == null) {
width = bmp.PixelWidth;
height = bmp.PixelHeight;
} else {
width = dest.DmdWidth;
height = dest.DmdHeight;
}
return TransformationUtil.Transform(bmp, width, height, Resize, FlipHorizontally, FlipVertically);
}
private Tuple<byte[][], Color[]> TransformColoredGray4(int width, int height, byte[][] planes, Color[] palette, IFixedSizeDestination dest)
{
if (dest == null) {
return new Tuple<byte[][], Color[]>(TransformationUtil.Flip(width, height, planes, FlipHorizontally, FlipVertically), palette);
}
if (width == dest.DmdWidth && height == dest.DmdHeight && !FlipHorizontally && !FlipVertically) {
return new Tuple<byte[][], Color[]>(planes, palette);
}
var bmp = ImageUtil.ConvertFromGray4(width, height, FrameUtil.Join(width, height, planes), 0, 1, 1);
var transformedBmp = TransformationUtil.Transform(bmp, dest.DmdWidth, dest.DmdHeight, Resize, FlipHorizontally, FlipVertically);
var transformedFrame = ImageUtil.ConvertToGray4(transformedBmp);
return new Tuple<byte[][], Color[]>(FrameUtil.Split(dest.DmdWidth, dest.DmdHeight, 4, transformedFrame), palette);
}