/// <summary>
/// Creates a mask with given <paramref name="maskChannels"/> active and of given <paramref name="width"/> and <paramref name="height"/>.
/// </summary>
/// <param name="maskChannels">Which channels in the mask should be activated.</param>
/// <param name="width">Width of image.</param>
/// <param name="height">Height of image.</param>
public void CreateMask(MaskChannel maskChannels, int width, int height)
{
ClearMask();
ddsMask = new DdsFile();
ddsMask.CreateImage(
MaskChannelToByte(maskChannels, MaskChannel.C1),
MaskChannelToByte(maskChannels, MaskChannel.C2),
MaskChannelToByte(maskChannels, MaskChannel.C3),
MaskChannelToByte(maskChannels, MaskChannel.C4),
width, height, false);
}
/// <summary>
/// Get a copy of the current DDS image as a <see cref="DdsFile"/>.
/// </summary>
/// <returns>A new <see cref="DdsFile"/> copy of the current DDS image.</returns>
public DdsFile GetDdsFile()
{
if (!this.loaded || ddsFile == null) return null;
DdsFile res = new DdsFile();
res.CreateImage(ddsFile, false);
return res;
}
/// <summary>
/// Creates an image from a given <see cref="T:Bitmap"/>, resized as requested.
/// If <paramref name="supportHSV"/> is true, also creates an HSVa-encoded version of the image.
/// </summary>
/// <param name="image"><see cref="T:Bitmap"/> from which to extract image pixels.</param>
/// <param name="width">Width of image.</param>
/// <param name="height">Height of image.</param>
/// <param name="supportHSV">When true, create an HSVa-encoded version of the image.</param>
public void CreateImage(Bitmap image, int width, int height, bool supportHSV)
{
using (DdsFile ddsFileBase = new DdsFile())
{
ddsFileBase.CreateImage(image, false);
CreateImage(ddsFileBase.Resize(new Size(width, height)), supportHSV);
}
}
/// <summary>
/// Get a new DdsFile of the given size based on the current image.
/// </summary>
/// <param name="size">The new size.</param>
/// <returns>A new DdsFile of the given size based on the current image.</returns>
public DdsFile Resize(Size size)
{
DdsFile ddsFile = new DdsFile();
ddsFile.CreateImage(this, size.Width, size.Height, SupportsHSV);
return ddsFile;
}
/// <summary>
/// Creates an image from a given <see cref="T:DdsFile"/>, resized as requested.
/// If <paramref name="supportHSV"/> is true, also creates an HSVa-encoded version of the image.
/// </summary>
/// <param name="image"><see cref="T:DdsFile"/> to clone.</param>
/// <param name="width">Width of image.</param>
/// <param name="height">Height of image.</param>
/// <param name="supportHSV">When true, create an HSVa-encoded version of the image.</param>
public void CreateImage(DdsFile image, int width, int height, bool supportHSV)
{
this.width = width;
this.height = height;
this.useBlockCompression = image.useBlockCompression;
this.useLuminence = image.useLuminence;
this.alphaDepth = image.alphaDepth;
if (this.useLuminence)
{
// Life would be still relatively simple were it not for Luminence maps.
// With these, you can't just strip the alpha channel -- they exist only for that channel,
// so we need to deal with them separately.
this.currentImage = new uint[width * height];
this.SetPixels((x, y, unused) => 0);
this.baseImage = (uint[])this.currentImage.Clone();
Bitmap alpha = new Bitmap(image.GetGreyscaleFromAlpha(), width, height);
this.SetAlphaFromGreyscale(alpha);
}
else if (alphaDepth == 0)
{
this.baseImage = new Bitmap(image.Image, width, height).ToARGBData();
this.currentImage = (uint[])this.baseImage.Clone();
}
else
{
// Regardless of the pixel format, using Bitmap to resize the image pre-multiplies the alpha
// so we need this mess.
// Clone the image, strip the alpha, then resize
using (DdsFile ddsFileBase = new DdsFile())
{
ddsFileBase.CreateImage(image, false);
ddsFileBase.DeleteAlphaChannel();
this.baseImage = new Bitmap(ddsFileBase.Image, width, height).ToARGBData();
}
this.currentImage = (uint[])this.baseImage.Clone();
// Now reapply the original alpha
Bitmap alpha = new Bitmap(image.GetGreyscaleFromAlpha(), width, height);
this.SetAlphaFromGreyscale(alpha);
}
if (supportHSV) this.UpdateHSVData();
}