/// <summary>
/// Allocate pixel data for this Image.
/// </summary>
/// <param name="format">
/// A <see cref="PixelLayout"/> indicating the image pixel format.
/// </param>
/// <param name="w">
/// A <see cref="Int32"/> indicating the image width, in pixels.
/// </param>
/// <param name="h">
/// A <see cref="Int32"/> indicating the image height, in pixels.
/// </param>
public void Create(PixelLayout format, uint w, uint h)
{
switch (format)
{
// Single plane formats
case PixelLayout.R8:
case PixelLayout.R16:
case PixelLayout.GRAY16S:
case PixelLayout.RF:
case PixelLayout.RHF:
//case PixelLayout.GRAYAF:
case PixelLayout.RGB8:
case PixelLayout.RGB15:
case PixelLayout.RGB16:
case PixelLayout.RGB24:
case PixelLayout.RGB48:
case PixelLayout.RGBF:
case PixelLayout.RGBHF:
case PixelLayout.RGBD:
case PixelLayout.SRGB24:
case PixelLayout.SBGR24:
//case PixelLayout.RGB30A2:
case PixelLayout.RGBA32:
case PixelLayout.RGBA64:
case PixelLayout.RGBAF:
case PixelLayout.RGBAHF:
case PixelLayout.BGR8:
case PixelLayout.BGR15:
case PixelLayout.BGR16:
case PixelLayout.BGR24:
case PixelLayout.BGR48:
case PixelLayout.BGRF:
case PixelLayout.BGRHF:
//case PixelLayout.BGR30A2:
case PixelLayout.BGRA32:
case PixelLayout.BGRA64:
case PixelLayout.BGRAF:
case PixelLayout.BGRAHF:
case PixelLayout.CMY24:
case PixelLayout.CMYK32:
case PixelLayout.CMYK64:
case PixelLayout.CMYKA40:
case PixelLayout.Depth16:
case PixelLayout.Depth24:
case PixelLayout.Depth32:
case PixelLayout.DepthF:
case PixelLayout.Depth24Stencil8:
case PixelLayout.Depth32FStencil8:
case PixelLayout.Integer1:
case PixelLayout.Integer2:
case PixelLayout.Integer3:
case PixelLayout.Integer4:
case PixelLayout.UInteger1:
case PixelLayout.UInteger2:
case PixelLayout.UInteger3:
case PixelLayout.UInteger4:
_PixelBuffers = new AlignedMemoryBuffer(w * h * format.GetBytesCount(), 16);
// Define planes
_PixelPlanes = new IntPtr[] { _PixelBuffers.AlignedBuffer };
break;
case PixelLayout.YUYV:
case PixelLayout.YYUV:
case PixelLayout.YVYU:
case PixelLayout.UYVY:
case PixelLayout.VYUY:
if (((w % 2) != 0) || ((h % 2) != 0))
{
throw new InvalidOperationException(String.Format("invalid image extents for pixel format {0}", format));
}
// Define planes
_PixelBuffers = new AlignedMemoryBuffer(w * h * format.GetBytesCount(), 16);
_PixelPlanes = new IntPtr[] { _PixelBuffers.AlignedBuffer };
break;
case PixelLayout.YVU410:
case PixelLayout.YUV410:
if (((w % 16) != 0) || ((h % 16) != 0))
{
throw new InvalidOperationException(String.Format("invalid image extents for pixel format {0}", format));
}
_PixelBuffers = new AlignedMemoryBuffer(w * h + (w * h / 16) * 2, 16);
// Define planes
_PixelPlanes = new IntPtr[3];
_PixelPlanes[0] = _PixelBuffers.AlignedBuffer;
_PixelPlanes[1] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h);
_PixelPlanes[2] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h + (w * h / 16));
break;
case PixelLayout.YVU420:
case PixelLayout.YUV420:
if (((w % 4) != 0) || ((h % 4) != 0))
{
throw new InvalidOperationException(String.Format("invalid image extents for pixel format {0}", format));
}
_PixelBuffers = new AlignedMemoryBuffer(w * h + (w * h / 4), 16);
// Define planes
_PixelPlanes = new IntPtr[3];
_PixelPlanes[0] = _PixelBuffers.AlignedBuffer;
_PixelPlanes[1] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h);
_PixelPlanes[2] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h + (w * h / 4));
break;
case PixelLayout.YUV422P:
if ((w % 2) != 0)
{
throw new InvalidOperationException(String.Format("invalid image extents for pixel format {0}", format));
}
_PixelBuffers = new AlignedMemoryBuffer(w * h + (w * h / 2), 16);
// Define planes
_PixelPlanes = new IntPtr[3];
_PixelPlanes[0] = _PixelBuffers.AlignedBuffer;
_PixelPlanes[1] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h);
_PixelPlanes[2] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h + (w * h / 2));
break;
case PixelLayout.YUV411P:
if ((w % 4) != 0)
{
throw new InvalidOperationException(String.Format("invalid image extents for pixel format {0}", format));
}
_PixelBuffers = new AlignedMemoryBuffer(w * h + (w * h / 4), 16);
// Define planes
_PixelPlanes = new IntPtr[3];
_PixelPlanes[0] = _PixelBuffers.AlignedBuffer;
_PixelPlanes[1] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h);
_PixelPlanes[2] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h + (w * h / 4));
break;
case PixelLayout.Y41P:
if ((w % 8) != 0)
{
throw new InvalidOperationException(String.Format("invalid image extents for pixel format {0}", format));
}
_PixelBuffers = new AlignedMemoryBuffer(w * h * 12 / 8, 16);
// Define planes
_PixelPlanes = new IntPtr[3];
_PixelPlanes[0] = _PixelBuffers.AlignedBuffer;
_PixelPlanes[1] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h);
_PixelPlanes[2] = new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + w * h + (w * h / 4));
break;
default:
throw new NotSupportedException(String.Format("pixel format {0} is not supported", format));
}
// Set image information
_ImageInfo.PixelType = format;
_ImageInfo.Width = w;
_ImageInfo.Height = h;
Debug.Assert(_PixelPlanes != null);
Debug.Assert(_PixelPlanes.Length != 0);
Debug.Assert(Array.TrueForAll(_PixelPlanes, delegate(IntPtr pixelPlane) { return(pixelPlane != IntPtr.Zero); }));
}
private IntPtr GetPixelDataOffset(uint w, uint h)
{
switch (PixelLayout)
{
// Single plane formats
case PixelLayout.R8:
case PixelLayout.R16:
case PixelLayout.GRAY16S:
//case PixelLayout.GRAYF:
case PixelLayout.RHF:
//case PixelLayout.GRAYAF:
case PixelLayout.RGB8:
case PixelLayout.RGB15:
case PixelLayout.RGB16:
case PixelLayout.RGB24:
case PixelLayout.RGB48:
case PixelLayout.RGBF:
case PixelLayout.RGBHF:
case PixelLayout.RGBD:
case PixelLayout.SRGB24:
case PixelLayout.SBGR24:
//case PixelLayout.RGB30A2:
case PixelLayout.RGBA32:
case PixelLayout.RGBA64:
case PixelLayout.RGBAF:
case PixelLayout.RGBAHF:
case PixelLayout.BGR8:
case PixelLayout.BGR15:
case PixelLayout.BGR16:
case PixelLayout.BGR24:
case PixelLayout.BGR48:
case PixelLayout.BGRF:
case PixelLayout.BGRHF:
//case PixelLayout.BGR30A2:
case PixelLayout.BGRA32:
case PixelLayout.BGRA64:
case PixelLayout.BGRAF:
case PixelLayout.BGRAHF:
case PixelLayout.CMY24:
case PixelLayout.CMYK32:
case PixelLayout.CMYK64:
case PixelLayout.CMYKA40:
case PixelLayout.Depth16:
case PixelLayout.Depth24:
case PixelLayout.Depth32:
case PixelLayout.DepthF:
case PixelLayout.Depth24Stencil8:
case PixelLayout.Depth32FStencil8:
case PixelLayout.Integer1:
case PixelLayout.Integer2:
case PixelLayout.Integer3:
case PixelLayout.Integer4:
case PixelLayout.UInteger1:
case PixelLayout.UInteger2:
case PixelLayout.UInteger3:
case PixelLayout.UInteger4:
return(new IntPtr(_PixelBuffers.AlignedBuffer.ToInt64() + (w * PixelLayout.GetBytesCount()) + (h * Width * PixelLayout.GetBytesCount())));
default:
throw new NotSupportedException(String.Format("pixel format {0} is not supported", PixelLayout));
}
}
