|
public Decode ( ExtendedImage image, |
||
| image | ExtendedImage | The image, where the data should be set to. /// Cannot be null (Nothing in Visual Basic). |
| stream | The stream, where the image should be /// decoded from. Cannot be null (Nothing in Visual Basic). | |
| return | void | |
public void Decode(ExtendedImage image, Stream stream)
{
Guard.NotNull(image, "image");
Guard.NotNull(stream, "stream");
if (UseLegacyLibrary)
{
FluxCoreJpegDecoder fluxCoreJpegDecoder = new FluxCoreJpegDecoder(stream);
DecodedJpeg jpg = fluxCoreJpegDecoder.Decode();
jpg.Image.ChangeColorSpace(ColorSpace.RGB);
int pixelWidth = jpg.Image.Width;
int pixelHeight = jpg.Image.Height;
byte[] pixels = new byte[pixelWidth * pixelHeight * 4];
byte[][,] sourcePixels = jpg.Image.Raster;
for (int y = 0; y < pixelHeight; y++)
{
for (int x = 0; x < pixelWidth; x++)
{
int offset = (y * pixelWidth + x) * 4;
pixels[offset + 0] = sourcePixels[0][x, y];
pixels[offset + 1] = sourcePixels[1][x, y];
pixels[offset + 2] = sourcePixels[2][x, y];
pixels[offset + 3] = (byte)255;
}
}
//-------
//
image.DensityXInt32 = jpg.Image.DensityX;
image.DensityYInt32 = jpg.Image.DensityY;
image.SetPixels(pixelWidth, pixelHeight, pixels);
}
else
{
JpegImage jpg = new JpegImage(stream);
int pixelWidth = jpg.Width;
int pixelHeight = jpg.Height;
byte[] pixels = new byte[pixelWidth * pixelHeight * 4];
if (!(jpg.Colorspace == Colorspace.RGB && jpg.BitsPerComponent == 8))
{
throw new UnsupportedImageFormatException();
}
for (int y = 0; y < pixelHeight; y++)
{
SampleRow row = jpg.GetRow(y);
for (int x = 0; x < pixelWidth; x++)
{
//Sample sample = row.GetAt(x);
int offset = (y * pixelWidth + x) * 4;
row.GetComponentsAt(x, out pixels[offset + 0], out pixels[offset + 1], out pixels[offset + 2]);
//r = (byte)sample[0];
//g = (byte)sample[1];
//b = (byte)sample[2];
//pixels[offset + 0] = r;
//pixels[offset + 1] = g;
//pixels[offset + 2] = b;
pixels[offset + 3] = (byte)255;
}
}
image.SetPixels(pixelWidth, pixelHeight, pixels);
}
}
public static void LoadJpeg(this WriteableBitmap bitmap, Stream sourceStream)
{
JpegDecoder decoder = new JpegDecoder();
var image = new ExtendedImage();
decoder.Decode(image, sourceStream);
WP7Utilities.UIThreadInvoke(() => bitmap.SetSource(image.ToStream()));
}
