private void LoadImage()
{
try
{
DatabaseIndexData index = (DatabaseIndexData)this.DataContext;
if (index != null)
{
using (MemoryStream byteStream = new MemoryStream(index.Data))
{
RasterChannel channel = RasterChannel.Preview;
if (rAll.IsChecked.GetValueOrDefault(false))
{
channel = RasterChannel.All;
}
if (rCombined.IsChecked.GetValueOrDefault(false))
{
channel = RasterChannel.Preview;
}
if (rAlpha.IsChecked.GetValueOrDefault(false))
{
channel = RasterChannel.A;
}
if (rRed.IsChecked.GetValueOrDefault(false))
{
channel = RasterChannel.R;
}
if (rGreen.IsChecked.GetValueOrDefault(false))
{
channel = RasterChannel.G;
}
if (rBlue.IsChecked.GetValueOrDefault(false))
{
channel = RasterChannel.B;
}
if (rFacadeColor.IsChecked.GetValueOrDefault(false))
{
channel = RasterChannel.FacadeColor;
}
RasterImage = RasterImage.CreateFromStream(byteStream, channel);
imagePreview.Source = RasterImage.MipMaps[0];
imagePreview.Width = RasterImage.MipMaps[0].PixelWidth;
imagePreview.Height = RasterImage.MipMaps[0].PixelHeight;
imagePreview.Stretch = Stretch.None;
}
}
}
catch (Exception ex)
{
throw ex;
}
}
public static RasterImage CreateFromStream(Stream byteStream, RasterChannel channel, Color color1, Color color2, Color color3, Color color4)
{
RasterImage image = new RasterImage();
image.RasterType = byteStream.ReadU32().Swap();
image.Width = byteStream.ReadU32().Swap();
image.Height = byteStream.ReadU32().Swap();
image.MipMapCount = byteStream.ReadU32().Swap();
image.PixelSize = byteStream.ReadU32().Swap();
image.RasterPixelFormat = byteStream.ReadU32().Swap();
uint originalWidth = image.Width;
uint originalHeight = image.Height;
int width = (int)image.Width;
int height = (int)image.Height;
image.MipMaps = new WriteableBitmap[image.MipMapCount];
for (int i = 0; i < image.MipMapCount; i++)
{
uint blockSize = byteStream.ReadU32().Swap();
WriteableBitmap bitmap = new WriteableBitmap((int)width, (int)height, 96, 96, PixelFormats.Pbgra32, BitmapPalettes.Halftone252);
if (image.RasterPixelFormat == 21)
{
for (int j = 0; j < (blockSize / 4); j++)
{
byte r = byteStream.ReadU8();
byte g = byteStream.ReadU8();
byte b = byteStream.ReadU8();
byte a = byteStream.ReadU8();
if (channel == RasterChannel.Preview)
{
//layers are in RGBA order
int layer1 = a >= 128 ? a : 0;
int layer2 = r >= 128 ? r : 0;
int layer3 = g >= 128 ? g : 0;
int layer4 = b >= 128 ? b : 0;
if (layer1 > 0)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), (byte)255, (byte)color1.R, (byte)color1.G, (byte)color1.B);
}
else if (layer2 > 0)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), (byte)255, (byte)color2.R, (byte)color2.G, (byte)color2.B);
}
else if (layer3 > 0)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), (byte)255, (byte)color3.R, (byte)color3.G, (byte)color3.B);
}
else if (layer4 > 0)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), (byte)255, (byte)color4.R, (byte)color4.G, (byte)color4.B);
}
else
{
bitmap.SetPixel((int)(j % width), (int)(j / width), (byte)0, (byte)0, (byte)0, (byte)0);
}
// bitmap.SetPixel((int)(j % width), (int)(j / width), (byte)Math.Max(Math.Max(Math.Max(layer1, layer2), layer3), layer4) , (byte)layer2, (byte)layer3, (byte)layer4);
}
else if (channel == RasterChannel.All)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), a, r, g, b);
}
else if (channel == RasterChannel.A)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), 255, a, a, a);
}
else if (channel == RasterChannel.R)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), 255, r, 0, 0);
}
else if (channel == RasterChannel.G)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), 255, 0, g, 0);
}
else if (channel == RasterChannel.B)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), 255, 0, 0, b);
}
else if (channel == RasterChannel.FacadeColor)
{
if (g >= 0 && g < 64)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), a, 255, 0, 0);
}
if (g >= 64 && g < 192)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), a, 0, 255, 0);
}
if (g >= 192)
{
bitmap.SetPixel((int)(j % width), (int)(j / width), a, 0, 0, 255);
}
//bitmap.SetPixel((int)(j % width), (int)(j / width), 255, 0, 0, b);
}
}
image.MipMaps[i] = bitmap;
width = Math.Max(width / 2, 1);
height = Math.Max(height / 2, 1);
}
}
return(image);
}
public static RasterImage CreateFromStream(Stream byteStream, RasterChannel channel)
{
return(RasterImage.CreateFromStream(byteStream, channel, Colors.Black, Colors.Red, Color.FromRgb(0, 255, 0), Colors.Blue));
}
