/// <summary>
/// Fill a 32 bit texture in parallel with values retrieved from the function fillFunc.
/// </summary>
/// <param name="tex">The texture to fill.</param>
/// <param name="oldData">Array to fill with the old data</param>
/// <param name="fillFunc">The function used to fill the texture.</param>
public unsafe static void Fill32BitTexParallel(Texture tex, uint[] oldData, TextureFillFunction fillFunc)
{
Fill32BitTexParallel(tex, oldData, 0, (od, data, row, col, width, height, metadata) => fillFunc(od, data, row, col, width, height));
}
/// <summary>
/// Fill a 32 bit texture in parallel with values retrieved from the function fillFunc.
/// </summary>
/// <param name="tex">The texture to fill.</param>
/// <param name="oldData">Array to fill with the old data</param>
/// <param name="metadata">User defined metadata to hand over to the fillFunc.</param>
/// <param name="fillFunc">The function used to fill the texture.</param>
public unsafe static void Fill32BitTexParallel <TMetadata>(Texture tex, uint[] oldData, TMetadata metadata, TextureFillFunction <TMetadata> fillFunc)
{
//lock the texture pixel data
var rect = tex.LockRectangle(0, LockFlags.None);
//calculate sizes
var byteLenght = (int)rect.Data.Length;
var pixelCount = byteLenght / 4;
var width = rect.Pitch / 4;
var height = byteLenght / rect.Pitch;
//get the pointer to the data
var data = (uint *)rect.Data.DataPointer.ToPointer();
//copy data to array, that we can replace the data
Copy32BitTexToArray(rect.Data.DataPointer, oldData, pixelCount);
//call the given function for each pixel
Parallel.For(0, height, i =>
{
for (int j = 0; j < width; j++)
{
fillFunc(oldData, data, i, j, width, height, metadata);
}
});
//unlock texture
tex.UnlockRectangle(0);
}
