public WicPlanarCacheSource(IWICPlanarBitmapSourceTransform source, WICBitmapPlaneDescription descY, WICBitmapPlaneDescription descC, WICRect crop, WICBitmapTransformOptions transformOptions, uint width, uint height, double ratio)
{
// TODO fractional ratio support?
subsampleRatioX = Math.Ceiling((double)descY.Width / descC.Width);
subsampleRatioY = Math.Ceiling((double)descY.Height / descC.Height);
var scrop = new WICRect();
scrop.X = (int)Math.Floor(crop.X / ratio);
scrop.Y = (int)Math.Floor(crop.Y / ratio);
scrop.Width = Math.Min((int)Math.Ceiling(crop.Width / ratio), (int)descY.Width);
scrop.Height = Math.Min((int)Math.Ceiling(crop.Height / ratio), (int)descY.Height);
if (subsampleRatioX > 1d)
{
descC.Width = Math.Min((uint)Math.Ceiling(scrop.Width / subsampleRatioX), descC.Width);
descY.Width = (uint)Math.Min(descC.Width * subsampleRatioX, scrop.Width);
if (scrop.X % subsampleRatioX > 0)
{
scrop.X = (int)(scrop.X / subsampleRatioX) * (int)subsampleRatioX;
}
}
else
{
descC.Width = descY.Width = (uint)scrop.Width;
}
if (subsampleRatioY > 1d)
{
descC.Height = Math.Min((uint)Math.Ceiling(scrop.Height / subsampleRatioY), descC.Height);
descY.Height = (uint)Math.Min(descC.Height * subsampleRatioY, scrop.Height);
if (scrop.Y % subsampleRatioY > 0)
{
scrop.Y = (int)(scrop.Y / subsampleRatioY) * (int)subsampleRatioY;
}
}
else
{
descC.Height = descY.Height = (uint)scrop.Height;
}
sourceTransform = source;
sourceTransformOptions = transformOptions;
planeDescriptionY = descY;
planeDescriptionC = descC;
scaledCrop = scrop;
scaledWidth = width;
scaledHeight = height;
strideY = (uint)scrop.Width + 3u & ~3u;
buffHeightY = 16u;
strideC = (uint)(Math.Ceiling(scrop.Width / subsampleRatioX)) * 2u + 3u & ~3u;
buffHeightC = (uint)(buffHeightY / subsampleRatioY);
sourceY = new WicPlanarSource(this, WicPlane.Luma, descY);
sourceC = new WicPlanarSource(this, WicPlane.Chroma, descC);
}
public WicPlanarCache(IWICPlanarBitmapSourceTransform source, ReadOnlySpan <WICBitmapPlaneDescription> desc, WICBitmapTransformOptions transformOptions, uint width, uint height, in PixelArea crop)
public WicPlanarCache(IWICPlanarBitmapSourceTransform source, WICBitmapPlaneDescription descY, WICBitmapPlaneDescription descC, WICRect crop, WICBitmapTransformOptions transformOptions, uint width, uint height, double ratio)
{
subsampleRatioX = Math.Ceiling((double)descY.Width / descC.Width);
subsampleRatioY = Math.Ceiling((double)descY.Height / descC.Height);
var scrop = new WICRect {
X = (int)Math.Floor(crop.X / ratio),
Y = (int)Math.Floor(crop.Y / ratio),
Width = Math.Min((int)Math.Ceiling(crop.Width / ratio), (int)descY.Width),
Height = Math.Min((int)Math.Ceiling(crop.Height / ratio), (int)descY.Height)
};
if (subsampleRatioX > 1d)
{
if (scrop.X % subsampleRatioX > double.Epsilon)
{
scrop.X = (int)(scrop.X / subsampleRatioX) * (int)subsampleRatioX;
}
if (scrop.Width % subsampleRatioX > double.Epsilon)
{
scrop.Width = (int)Math.Min(Math.Ceiling(scrop.Width / subsampleRatioX) * (int)subsampleRatioX, descY.Width - scrop.X);
}
descC.Width = Math.Min((uint)Math.Ceiling(scrop.Width / subsampleRatioX), descC.Width);
descY.Width = (uint)Math.Min(descC.Width * subsampleRatioX, scrop.Width);
}
else
{
descC.Width = descY.Width = (uint)scrop.Width;
}
if (subsampleRatioY > 1d)
{
if (scrop.Y % subsampleRatioY > double.Epsilon)
{
scrop.Y = (int)(scrop.Y / subsampleRatioY) * (int)subsampleRatioY;
}
if (scrop.Height % subsampleRatioY > double.Epsilon)
{
scrop.Height = (int)Math.Min(Math.Ceiling(scrop.Height / subsampleRatioY) * (int)subsampleRatioY, descY.Height - scrop.Y);
}
descC.Height = Math.Min((uint)Math.Ceiling(scrop.Height / subsampleRatioY), descC.Height);
descY.Height = (uint)Math.Min(descC.Height * subsampleRatioY, scrop.Height);
}
else
{
descC.Height = descY.Height = (uint)scrop.Height;
}
sourceTransform = source;
sourceTransformOptions = transformOptions;
scaledCrop = scrop;
scaledWidth = width;
scaledHeight = height;
strideY = scrop.Width + 3 & ~3;
strideC = (int)Math.Ceiling(scrop.Width / subsampleRatioX) * 2 + 3 & ~3;
buffHeightY = Math.Min(scrop.Height, transformOptions.RequiresCache() ? scrop.Height : 16);
buffHeightC = (int)Math.Ceiling(buffHeightY / subsampleRatioY);
sourceY = new PlanarPixelSource(this, WicPlane.Luma, descY);
sourceC = new PlanarPixelSource(this, WicPlane.Chroma, descC);
}
public WicPlanarCache(IWICPlanarBitmapSourceTransform source, WICBitmapPlaneDescription descY, WICBitmapPlaneDescription descC, in Rectangle crop, WICBitmapTransformOptions transformOptions, uint width, uint height, double ratio)
public WicPlanarCacheSource(IWICPlanarBitmapSourceTransform source, WICBitmapPlaneDescription descY, WICBitmapPlaneDescription descC, WICRect crop, WICBitmapTransformOptions transformOptions, uint width, uint height, double ratio, bool cacheFull)
{
this.cacheFull = cacheFull;
// TODO fractional ratio support?
subsampleRatioX = Math.Ceiling((double)descY.Width / descC.Width);
subsampleRatioY = Math.Ceiling((double)descY.Height / descC.Height);
var scrop = new WICRect {
X = (int)Math.Floor(crop.X / ratio),
Y = (int)Math.Floor(crop.Y / ratio),
Width = Math.Min((int)Math.Ceiling(crop.Width / ratio), (int)descY.Width),
Height = Math.Min((int)Math.Ceiling(crop.Height / ratio), (int)descY.Height)
};
if (subsampleRatioX > 1d)
{
if (scrop.X % subsampleRatioX > 0d)
{
scrop.X = (int)(scrop.X / subsampleRatioX) * (int)subsampleRatioX;
}
if (scrop.Width % subsampleRatioX > 0d)
{
scrop.Width = (int)Math.Min(Math.Ceiling(scrop.Width / subsampleRatioX) * (int)subsampleRatioX, descY.Width);
}
descC.Width = Math.Min((uint)Math.Ceiling(scrop.Width / subsampleRatioX), descC.Width);
descY.Width = (uint)Math.Min(descC.Width * subsampleRatioX, scrop.Width);
}
else
{
descC.Width = descY.Width = (uint)scrop.Width;
}
if (subsampleRatioY > 1d)
{
if (scrop.Y % subsampleRatioY > 0d)
{
scrop.Y = (int)(scrop.Y / subsampleRatioY) * (int)subsampleRatioY;
}
if (scrop.Height % subsampleRatioY > 0d)
{
scrop.Height = (int)Math.Min(Math.Ceiling(scrop.Height / subsampleRatioY) * (int)subsampleRatioY, descY.Height);
}
descC.Height = Math.Min((uint)Math.Ceiling(scrop.Height / subsampleRatioY), descC.Height);
descY.Height = (uint)Math.Min(descC.Height * subsampleRatioY, scrop.Height);
}
else
{
descC.Height = descY.Height = (uint)scrop.Height;
}
sourceTransform = source;
sourceTransformOptions = transformOptions;
scaledCrop = scrop;
scaledWidth = width;
scaledHeight = height;
strideY = scrop.Width + 3 & ~3;
buffHeightY = Math.Min(scrop.Height, cacheFull ? scrop.Height : 16);
strideC = (int)Math.Ceiling(scrop.Width / subsampleRatioX) * 2 + 3 & ~3;
buffHeightC = (int)Math.Ceiling(buffHeightY / subsampleRatioY);
sourceY = new WicPlanarSource(this, WicPlane.Luma, descY);
sourceC = new WicPlanarSource(this, WicPlane.Chroma, descC);
}
