public static Bitmap LoadPngFromStream(Stream stream)
{
// Read input
var wicStream = new WICStream(DXGraphicsService.FactoryImaging, stream);
var decoder = new PngBitmapDecoder(DXGraphicsService.FactoryImaging);
decoder.Initialize(wicStream, DecodeOptions.CacheOnDemand);
var bitmapFrameDecode = decoder.GetFrame(0);
var width = bitmapFrameDecode.Size.Width;
var height = bitmapFrameDecode.Size.Height;
//Convert WIC pixel format to D2D1 format
var formatConverter = new FormatConverter(DXGraphicsService.FactoryImaging);
formatConverter.Initialize(bitmapFrameDecode, PixelFormat.Format32bppBGRA, BitmapDitherType.None, null, 0f,
BitmapPaletteType.MedianCut);
// Bitmaps and render target settings
var wicBitmap = new Bitmap(
DXGraphicsService.FactoryImaging, width, height,
PixelFormat.Format32bppBGRA,
BitmapCreateCacheOption.CacheOnLoad);
bitmapFrameDecode.Dispose();
decoder.Dispose();
wicStream.Dispose();
return(wicBitmap);
}
internal SharpDX.DataStream CreateBitmapFromJpeg(MemoryStream stream, out SharpDX.Size2 size)
{
using (var istream = new WICStream(factory, stream))
{
using (var decoder = new PngBitmapDecoder(factory))
{
decoder.Initialize(istream, DecodeOptions.CacheOnDemand);
using (var formatConverter = new FormatConverter(factory))
{
formatConverter.Initialize(decoder.GetFrame(0), PixelFormat.Format32bppPRGBA);
var stride = formatConverter.Size.Width * 4;
var dataStream = new SharpDX.DataStream(formatConverter.Size.Height * stride, true, true);
formatConverter.CopyPixels(stride, dataStream);
size = formatConverter.Size;
return(dataStream);
}
}
}
}