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();
}
}
private void DisplayImageInternal()
{
IWICImagingFactory factory = (IWICImagingFactory) new WICImagingFactory();
IWICBitmapScaler scaler = factory.CreateBitmapScaler();
IWICFormatConverter formatConvert = factory.CreateFormatConverter();
GCHandle h = new GCHandle();
Image image = rawPictureBox.Image;
try
{
uint pixelColorWidth = 3; // 3 bytes/channel for Consts.GUID_WICPixelFormat24bppRGB, or more generally (((bits / pixel) + 7) / 8)
uint width = (uint)rawPictureBox.Width;
uint height = (uint)rawPictureBox.Height;
scaler.Initialize(frame, width, height, WICBitmapInterpolationMode.WICBitmapInterpolationModeFant);
formatConvert.Initialize(scaler, Consts.GUID_WICPixelFormat24bppBGR, WICBitmapDitherType.WICBitmapDitherTypeNone, null, 0.0, WICBitmapPaletteType.WICBitmapPaletteTypeMedianCut);
uint stride = width * pixelColorWidth;
uint size = stride * height;
byte[] pixels = new byte[size];
formatConvert.CopyPixels(null, stride, size, pixels);
h = GCHandle.Alloc(pixels, GCHandleType.Pinned);
Bitmap bitmap = new Bitmap((int)width, (int)height, (int)stride, PixelFormat.Format24bppRgb, h.AddrOfPinnedObject());
rawPictureBox.Image = bitmap;
}
catch
{
}
finally
{
if (image != null)
{
image.Dispose();
}
if (h.IsAllocated)
{
h.Free();
}
scaler.ReleaseComObject();
formatConvert.ReleaseComObject();
factory.ReleaseComObject();
}
}