/// <summary>
/// stores the textures for later use
/// </summary>
/// <param name="tex"></param>
public void StoreTexture(TextureArray2D tex)
{
Debug.Assert(tex != null);
if (tex.NumMipmaps == images.NumMipmaps)
{
// can be used for later
textures.Push(tex);
}
else
{
// immediately discard (incompatible image)
tex.Dispose();
}
}
public TextureArray2D Run(TextureArray2D src, Size3 dstSize, ScalingModel scaling)
{
Debug.Assert(src.Size != dstSize);
var genMipmaps = src.NumMipmaps > 1;
var numMipmaps = 1;
if (genMipmaps)
{
numMipmaps = dstSize.MaxMipLevels;
}
bool changeWidth = dstSize.Width != src.Size.Width;
bool changeHeight = dstSize.Height != src.Size.Height;
if (changeWidth)
{
var curMips = numMipmaps;
if (changeHeight) // only temporary texture with a single mipmap
{
curMips = 1;
}
var tmp = new TextureArray2D(new LayerMipmapCount(src.NumLayers, curMips), new Size3(dstSize.Width, src.Size.Height), src.Format, false);
Apply(src, tmp, 1, 0);
src = tmp;
}
if (changeHeight)
{
var tmp = new TextureArray2D(new LayerMipmapCount(src.NumLayers, numMipmaps), dstSize, src.Format, false);
Apply(src, tmp, 0, 1);
if (changeWidth) // delete temporary texture created by width invocation
{
src.Dispose();
}
src = tmp;
}
if (genMipmaps)
{
scaling.WriteMipmaps(src);
}
return(src);
}
public void Dispose()
{
Texture?.Dispose();
statisticsTexture?.Dispose();
}