/// <summary>
/// Swaps two slices of a texture array.
/// </summary>
/// <param name="image">The image.</param>
/// <param name="firstIndex">The index of the first sub-image.</param>
/// <param name="secondIndex">The index of the second sub-image</param>
public void Swap(TexImage image, int firstIndex, int secondIndex)
{
var request = new SwappingRequest(firstIndex, secondIndex);
ExecuteRequest(image, request);
}
/// <summary>
/// Swaps two sub-images.
/// </summary>
/// <param name="image">The image.</param>
/// <param name="libraryData">The library data.</param>
/// <param name="swap">The swap request.</param>
private void Swap(TexImage image, FreeImageTextureLibraryData libraryData, SwappingRequest swap)
{
Log.Info("Swapping image : sub-image " + swap.FirstSubImageIndex + " and " + swap.SecondSubImageIndex + " ...");
if (swap.FirstSubImageIndex >= 0 && swap.FirstSubImageIndex < libraryData.Bitmaps.Length
&& swap.SecondSubImageIndex >= 0 && swap.SecondSubImageIndex < libraryData.Bitmaps.Length)
{
// copy first image
var firstImage = FreeImage.Copy(libraryData.Bitmaps[swap.FirstSubImageIndex], 0, 0, image.Width, image.Height);
FreeImage.Paste(libraryData.Bitmaps[swap.FirstSubImageIndex], libraryData.Bitmaps[swap.SecondSubImageIndex], 0, 0, 256);
FreeImage.Paste(libraryData.Bitmaps[swap.SecondSubImageIndex], firstImage, 0, 0, 256);
// TODO: free firstImage?
}
else
{
Log.Warning("Cannot swap the sub-images " + swap.FirstSubImageIndex + " and " + swap.SecondSubImageIndex + " because there is only " + libraryData.Bitmaps.Length + " sub-images.");
}
// TODO: texture atlas update?
}