/// <summary>
/// Retrieves information about a given image file.
/// </summary>
/// <param name="fileName">File name of image to retrieve information about.</param>
/// <returns>If the function succeeds, returns a <see cref="SharpDX.Direct3D11.ImageInformation"/> filled with the description of the data in the source file. else returns null </returns>
/// <unmanaged>HRESULT D3DX11GetImageInfoFromFileW([None] const wchar_t* pSrcFile,[None] ID3DX11ThreadPump* pPump,[None] D3DX11_IMAGE_INFO* pSrcInfo,[None] HRESULT* pHResult)</unmanaged>
public static ImageInformation? FromFile(string fileName)
{
try
{
var info = new ImageInformation();
Result hresult;
D3DX11.GetImageInfoFromFile(fileName, IntPtr.Zero, ref info, out hresult);
return info;
}
catch (SharpDXException)
{ }
return null;
}
/// <summary>
/// Retrieves information about a given image file from a memory location.
/// </summary>
/// <param name="memory">an array to the image in memory</param>
/// <returns>If the function succeeds, returns a <see cref="SharpDX.Direct3D11.ImageInformation"/> filled with the description of the data from the image memory. else returns null </returns>
/// <unmanaged>HRESULT D3DX11GetImageInfoFromFileW([None] const wchar_t* pSrcFile,[None] ID3DX11ThreadPump* pPump,[None] D3DX11_IMAGE_INFO* pSrcInfo,[None] HRESULT* pHResult)</unmanaged>
public static ImageInformation? FromMemory(byte[] memory)
{
unsafe
{
try
{
var info = new ImageInformation();
Result hresult;
fixed (void* pMemory = &memory[0])
D3DX11.GetImageInfoFromMemory((IntPtr)pMemory, memory.Length, IntPtr.Zero, ref info, out hresult);
// TODO test hResult?
return info;
}
catch (SharpDXException)
{
}
return null;
}
}