private void Check(MainForm form, IWICFormatConverterInfo info, object tag)
{
Guid[] pixelFormats = PixelFormatInfoRule.CheckPixelFormats(form, this, info.GetPixelFormats);
Type type = Type.GetTypeFromCLSID(Parent.Clsid);
if (type == null)
{
form.Add(this, Resources.PixelFormatConverterNotCreatable);
}
else
{
IWICImagingFactory factory = (IWICImagingFactory) new WICImagingFactory();
foreach (Guid g in pixelFormats)
{
bool supportsTo = false;
bool supportsFrom = false;
foreach (Guid c in canonical)
{
supportsTo |= CheckConvertion(form, info, g, c);
supportsFrom |= CheckConvertion(form, info, c, g);
}
if (!supportsTo)
{
form.Add(this, Resources.ToCannonicalNotSupported, new DataEntry(Resources.PixelFormat, g));
}
if (!supportsFrom)
{
form.Add(this, Resources.FromCannonicalNotSupported, new DataEntry(Resources.PixelFormat, g));
}
}
}
}
private bool CheckConvertion(MainForm form, IWICFormatConverterInfo info, Guid from, Guid to)
{
if (from == to)
{
return(true);
}
IWICImagingFactory factory = (IWICImagingFactory) new WICImagingFactory();
IWICPalette palette = factory.CreatePalette();
palette.InitializePredefined(WICBitmapPaletteType.WICBitmapPaletteTypeFixedBW, false);
IWICBitmap bitmap = null;
IWICFormatConverter converter = null;
try
{
try
{
converter = info.CreateInstance();
}
catch (Exception e)
{
form.Add(this, e.TargetSite.ToString(Resources._0_Failed), new DataEntry(e));
return(false);
}
try
{
bitmap = factory.CreateBitmap(1, 1, from, WICBitmapCreateCacheOption.WICBitmapCacheOnLoad);
bitmap.SetPalette(palette);
}
catch (Exception e)
{
form.Add(this, e.TargetSite.ToString(Resources._0_Failed), new DataEntry(e), new DataEntry(Resources.PixelFormat, from));
return(false);
}
try
{
converter.Initialize(bitmap, to, WICBitmapDitherType.WICBitmapDitherTypeNone, palette, 0, WICBitmapPaletteType.WICBitmapPaletteTypeCustom);
}
catch (Exception e)
{
form.CheckHRESULT(this, WinCodecError.WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT, e, new DataEntry(Resources.Source, from), new DataEntry(Resources.Destination, to));
return(false);
}
return(true);
}
finally
{
palette.ReleaseComObject();
converter.ReleaseComObject();
bitmap.ReleaseComObject();
factory.ReleaseComObject();
}
}
public static IComObject <IWICFormatConverter> CreateInstance(this IWICFormatConverterInfo info)
{
if (info == null)
{
throw new ArgumentNullException(nameof(info));
}
info.CreateInstance(out var converter).ThrowOnError();
return(new ComObject <IWICFormatConverter>(converter));
}
public static Guid[] GetPixelFormats(this IWICFormatConverterInfo formatConverterInfo)
{
return(FetchIntoBufferHelper.FetchArray <Guid>(formatConverterInfo.GetPixelFormats));
}
public static Guid[] GetPixelFormats(this IWICFormatConverterInfo formatConverterInfo)
{
FetchIntoBuffer <Guid> fetcher = formatConverterInfo.GetPixelFormats;
return(fetcher.FetchArray());
}
