I am trying to load a DirectDraw Surface (DDS) file and display it in a WPF application. This is how I get the stream from a zip archive:
using (ZipArchive clientArchive = ZipFile.OpenRead(levelsPath + mapName + @"\client.zip"))
{
var entry = clientArchive.GetEntry("hud/minimap/ingamemap.dds");
var stream = entry.Open();
}
Now, how do I display the DDS image (just the first, highest quality mipmap) in my WPF application?
I recently used DDSImage class from kprojects. It can load DXT1 and DXT5 compressend DDS files.
Simply create a new instance with a byte array and access all mipmaps through the property images of type Bitmap[]:
DDSImage img = new DDSImage(File.ReadAllBytes(@"e:\myfile.dds"));
for (int i = 0; i < img.images.Length; i++)
{
img.images[i].Save(@"e:\mipmap-" + i + ".png", ImageFormat.Png);
}
Im you got your mipmap as Bitmap you could display it with an Image-Control. To create an BitmapSource, based on the Bitmap in memory this answer pointed me the right way.
using (ZipArchive clientArchive = ZipFile.OpenRead(levelsPath + mapName + @"\client.zip"))
{
var entry = clientArchive.GetEntry("hud/minimap/ingamemap.dds");
var stream = entry.Open();
ImageObject.Source = DDSConverter.Convert(stream,null,null,null);
}
Taken from here.
public class DDSConverter : IValueConverter
{
private static readonly DDSConverter defaultInstace = new DDSConverter();
public static DDSConverter Default
{
get
{
return DDSConverter.defaultInstace;
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
else if (value is Stream)
{
return DDSConverter.Convert((Stream)value);
}
else if (value is string)
{
return DDSConverter.Convert((string)value);
}
else if (value is byte[])
{
return DDSConverter.Convert((byte[])value);
}
else
{
throw new NotSupportedException(string.Format("{0} cannot convert from {1}.", this.GetType().FullName, value.GetType().FullName));
}
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotSupportedException(string.Format("{0} does not support converting back.", this.GetType().FullName));
}
public static ImageSource Convert(string filePath)
{
using (var fileStream = File.OpenRead(filePath))
{
return DDSConverter.Convert(fileStream);
}
}
public static ImageSource Convert(byte[] imageData)
{
using (var memoryStream = new MemoryStream(imageData))
{
return DDSConverter.Convert(memoryStream);
}
}
public static ImageSource Convert(Stream stream)
{
...
}
}
Following is a simple usage example:
<Image x:Name="ImageObject" Source="{Binding Source=Test.dds, Converter={x:Static local:DDSConverter.Default}}" />
